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Installation and user manual - HVAC and Refrigeration Information

1. Fig 8 2 88 70 65 Fig 8 3 Carel code 030220306 rel 2 1 dated 23 11 07 50 Aria 9 TECHNICAL SPECIFICATIONS The control s electrical specifications are as follows 9 1 Terminal board power suppl from power board connection to power board using a bipolar cable with cross section from 0 5 to 1 5mm depending on the length of the connection from 0 to 50m min 0 5mm from 50 to 150m min 1mm maximum distance from power board m 150 connection to pLAN network via twisted and shielded cable AWG20 or AWG22 1 pair shield analogue inputs 1 B1 for NTC Carel regulation probe field of measurement 0 C 50 C resolution 0 5 C 1 F accuracy 1 5 C 3 F through entire field of measurement 1 B2 for voltage inputs 0 5 1 Vdc with 20mV accuracy Internal humidity sensor with field of measurement 10 90 R H accuracy 6 in temperature range 0 50 C 3 at 25 C Temporary variations of up to 10 R H are possible in the presence of 10V m electrical fields PTI of materials used for insulation V 600 operating temperature 0T50 C 90 UR non condensing storage temperature 10T65 C 90 UR non condensing operating humidity R H 20 90 storage humidity R H 0 90 surface temperature limits as per operating temperature Max no of terminals in the pLAN network 30 mounting Wall
2. J pa TERMINAL REAR SHELL TO BE Ko Samm a WALL MOUNTED f H j TONI i O O Or 3 san oU sl Oo sf O fon O O NZ EINE o o 0 Figure 1 2 1 Figure 1 2 2 Figs 1 2 1 and 1 2 2 represent respectively the rear view of the terminal and the view of the rear shell Carel code 030220306 rel 2 1 dated 23 11 07 4 Aria The following areas of connection can be identified on the rear shell e T T for the connection of the power board e 24 V AVss B2 for the connection of a remoted Carel external active humidity probe 0 1 Vdc output e AVss BI to remote the NTC temperature probe e Rx Tx GND Rx Tx for connecting the terminal to the Carel pLAN local network On the rear side of the terminal there are two further jumpers J1 and J2 which are used as follows e Ji positioned between 1 2 Carel NTC temperature probe B1 remoted externally positioned between 2 3 built in Carel NTC temperature probe B1 Note For correct operation do not connect the external temperature probe if the internal probe is used e J2 positioned between 1 2 probe 0 1Vdc output B2 remoted externally positioned between 2 3 built in humidity probe B2 1 3 Power board for the control of stand alone air conditioning units code TABASES5000 This board is installed inside the air conditioning unit electrical panel it is fitted with a set of terminals for c
3. SSS SSS SSS SSSISS SSSss out 6 i Probe on Sonda 0 1 Vdc external 0 1Vdc probe _ _______________________________ 24 VaclVde exchanger O stand alone Figure 3 4 1 3 3 Installation of the relay power board STAND ALONE system and multi zone power board The power board may be installed on the electric panel of the air conditioning unit to be controlled Its dimensions DIN standard compatible allow installation on omega rail by means of suitable adapters available on the market Connect the actuators as in Fig 3 2 1 the relays no 1 and no 2 have dual contacts while the others have only one contact normally open For a description of the devices controlled by each relay please refer to the Applications pg 7 according to the specific configuration of the machine The digital inputs ID1 ID2 and ID3 are optically insulated and suitable for 24Vac dc signals with normally closed logic at the contact opening there is alarm condition To simplify the wiring it is possible to get the 24Vac dc power supply from the GND terminal see Fig 3 3 1 In fact J3 jumper can be placed as follows J3 in position 1 2 INT ID COM digital inputs powered internally Fig 3 3 1 in position 2 3 ID COM EXT 24Vac dc power supply to be provided by the user Fig 3 3 2 In order to get a real optical insulation digital inputs power supply must be d
4. The triac power card is to be installed on a omega DIN rail Connect the cards as follows M 24 Vac de G D UUU UUUUUUUUUT EUU la 24Vac Sio Go 9 8 ol al d o a 6 2 8 2 2 sss Ssississ Sonda NTC di regolazione remota NTC probe for remote regulation ded Sonda 0 1 Vdc olg 0 1Vdc probe S 24 Vac Line T n 7 T T Figure 3 4 1 For a detailed description of the pLAN local network usage refer to the respective guide pLAN technical guide the connection to the pCO pCO is as follows ARIA ARIA e g gi L1 3 L2 1 L3 182 L1 2 L2 1 L3 181 Rx Tx Rx Tx GND Rx Tx Rx Tx GND 3 OJO O 0 O J N pCO AAA i H SHIELDED CABLE SHIELDED CABLE O anp O rxrx eee O Rx Tx AWG22 twisted AWG22 1 twisted pair with shield pair with shield Ju Figure 3 4 2 11 Carel code 030220306 rel 2 1 dated 23 11 07 Aria 4 USER INTERFACE In Fig 4 1 are shown the buttons and the indications managed by the terminal Immediate change Cesa mn me BBE A Seer Side buttons for ETI J G aK V programming D aute Me Tu We Th Fr Sa su e FAN K BA ARTA RTA AM HOLD O E PAN EN is tame DIO RESUME Fig 4 1 4 1 Meaning of the symbols on the
5. low humidity alarm threshold P7 high humidity alarm threshold P 8 delay low P alarm on ID2 in Cooling 9 0 humidifier control 1 Alarm 2 external fan control 3 pool heater 4 operating mode signal heating cooling 5 COMFORT mode signal 0 absent 1 remote cooling heating selection 2 alarm filter 3 fan thermal cut off alarm with th F signal 0 absent 1 Remote ON OFF 2 water pump alarm with P AL signal 3 low pressure alarm with LO P signal programmable output function of digital input ID1 function of digital input ID2 function of digital input ID3 select display on LCD Set Point override time CLK H1 15 H1 16 ine y CLK H1 15 ts x o lt 3 D a 3 e 2 3 p P i R z E a a Q i e o 5 Fi 2 a enable button click 0 disabled 1 local 2 remote from pLAN 3 as for value 2 4 as for value 2 5 local without time bands no category changeover from clock 6 remote without time bands no category changeover from clock 0 valve active with relay energised 1 opposite logic able dehumidify function in unoccupied or 0 dehumidification disabled for unoccupied or night time modes 1 normal SI night time mode n o 1 set point compensation enabled 1 iw delay in accepting the opening of ID2 0 On Demand 1 Continuous in all modes 2 Continuous in Comfort amp On Demand in the other modes 0 TRIAC outputs only defaul
6. 6 fe al ea sl O 9 20 i 2 23 24 25 26 er dl i 28 20 30 3 i 3 le si ei 35 36 37 38 il 40 fed ae li aS ea ir 5 E 4 i an ni al ar st 50 Ss i 5 53 o 5 PSS nn N H nN af wn Nn S N an N Carel code 030220306 rel 2 1 dated 23 11 07 31 Aria pLAN destination address 0 31 pLAN page 0 255 L s L damper stroke time 1 900 L dev9 machine operating status 0 255 R28 free cooling free heating differential 0 5 15 0 R23 K for temperature set point compensation 0 10 0 9 compressor hour counter 3 0 19 9 2 3 4 C 6 SP5 firmware version 0 255 R24 K for temperature set point compensation 0 10 0 P delay in alarm from input ID3 0 600 H15 enable dehumidification in UNOCCUPIED and NIGHT TIME 0 1 R25 minimum limit for the entity of set point compensation 10 0 0 84 R26 maximum limit for the entity of set point compensation 0 10 0 type of free cooling free heating 0 1 2 3 4 5 6 7 0 disabled 1 free cooling without compressors 2 free heating without compressors 3 free cooling free heating without compressors 4 disabled 5 free cooling with compressors 6 free heating with compressors 7 free cooling free heating with compressors P7 low humidity alarm threshold 0 P8 P8 high humidity alarm threshold P7 100 P9 H14 select active valve status 0 1 0 normal logic 1 oppo
7. However on setting variable 185 by pLAN forces the unit ON no matter if it was previously turned off by keypad or ID2 AUX variables The variables declared to be AUX are stored in RAM and must be initialised by pCO when powering Aria Carel code 030220306 rel 2 1 dated 23 11 07 32 Aria 5 6 Digital inputs These are physically located on the power board and need to enabled via the terminal by setting the corresponding parameters H3 H4 and HS they may derive from pLAN network if enabled by parameter L5 ID1 Heating Cooling selection Filter Alarm fan thermal cut off alarm digital input If H3 0 the input is disabled If H3 1 the unit operating mode is forced to be heating or cooling this has priority over the commands sent by keypad open contact Cooling Summer operations closed contact Heating Winter operations If H3 2 it has the function of non serious alarm input signalling the need to change the fan filter open contact clogged filter alarm closed contact no alarm If H3 3 digital input ID1 may be used to control the supply fan thermal cut off alarm this is an immediate alarm showing Th F blinking and shuts down all the devices Manual reset Selecting the fan thermal cut off switch with H3 3 modifies the effect of the general alarm on ID3 if this is used as a serious alarm H5 1 and P2 1 e With H3 3 H5 1 P2 1 if the alarm on ID3 goes off all devices are stopped except the supply fan e With H3 3 H5 1 P2
8. BRIEFCASE setpoint CT ARMCHAIR setpoint ARMCHAIR set point __s__ _ temperawre differential temperature differential INTEGER VARIABLES I I 1 output status infocal or remote control SSCS RE humidity set point no write if in parameter local clock HOURS local clock HOURS local clock MINUTES local clock MINUTES local clock DAY local clock DAY manual operating mode manual operating mode AUTO COOL HEAT FAN ONLY AUTO COOL HEAT FAN ONLY fan operating mode OFF AUTO SPDI SPD2 SPD3 polars ssi S a i machinestatus flag O set point category UNOCCUPIED COMFORT a NIGHT TIME STAND BY ie ae NIGHT TIME Temperature operating mode AUTO COOL HEAT FAN ONLY if INTO7 HEAT COOL INTI5 INTO7 if INTO7 ONLY FAN INTI5 COOL If INTO7 AUTO depending on Tawg and the settdead i settdead Carel code 030220306 rel 2 1 dated 23 11 07 34 set point category in manual operation Aria 1 6 ALARMS AND TROUBLESHOOTING The detection of an alarm brings about e the activation of the buzzer if present and enabled parameter P1 not equal to 0 depending on the type of alarm e the display of the alarm code and the letters AL alternating with the display of the temperature e the de activation of some or all the outputs depending on the type of alarm e the activation of the alarm relay if present parameter H2 1 depending on the type of alarm WARNING alarm relay refers only
9. ES Free cooling or Free heating damper closing relay P water pool pump Rp pool water heating element The OP programmable output has the following functions depending on the value of parameter H2 B2 OPA a se o Humidifier control Alarm signal 4 Functioning mode remote signal heating or cooling Tab 2 1 1 The relays can be identified by referring to the numbering in Fig 1 3 1 Relays 1 and 2 have normally open NO and normally closed NC contacts while relays from 3 to 7 only have normally open contacts In the 5 relay model relays 6 and 7 are not present 2 1 1 Heating only RLI 1 stage heating 0 ESt Es RI NU FI OP ALL 2 stage heating 1 ESt ES RI R2 FI OP ALL Tab 2 1 1 1 2 1 2 Cooling only RLI ES Es CI NU Fi OP ALL Es Es ci c2 Fi OP ALL Tab 2 1 2 1 Carel code 030220306 rel 2 1 dated 23 11 07 7 Aria 2 1 3 Conventional ESE ES Ct RI CFL OP ALE 1 stage cooling 2 stage heating 6 ESt ES ci RI FI R2 OP 2 stage cooling 1 stage heating Sd 8 Est ES ci C2 FI RI OP 2 stage cooling 2 stage heating 9 ci c2 Fi RI R2 R3 OP Tab 2 1 3 1 2 1 4 Heat pump RLI OP dual compressor 1Raux 1 cireuit 2 Ct C2 FI Riwx OP v AL OP Tab 2 1 4 1 2 1 5 Split system pL IMT L
10. ID2 and ID3 for connection of the digital inputs e terminals B3 and GND for connection of a NTC temperature probe e terminals OUT1 OUT2 and C to open and close the zone damper zone controller CAREL booa bola 1 5 Codes Here follow the codes of the Aria components Terminal with programmer clock back lit display buzzer Terminal with programmer clock back lit display buzzer and built in humidity probe Terminal with pLAN output back lit display and buzzer Terminal with pLAN output back lit display buzzer and built in humidity probe Tab 1 5 1 Power boards Power board with 5 relays TABASE5000 Power board with 7 relays TABASE7000 Power board for zone control TAZONE0000 Tab 1 5 2 Programming hardware key Programming hardware KEY TAKEY00000 Tab 1 5 3 Carel code 030220306 rel 2 1 dated 23 11 07 6 Aria 2 APPLICATIONS The Aria control can be used in a wide variety of applications which are selected using the parameter H1 The possible applications can be divided into two families e stand alone applications where Aria controls directly the air conditioning units via relay power board The power board is available in two different models with either 5 or 7 relays part no TABASE5000 and TABASE7000 e miulti zone application control where a series of terminals are connected to a Carel pCO programmable control using the Carel pLAN local network pCO Local Area Network In this situation the te
11. Low pressure alarm When digital input ID2 with H4 3 is closed based on the settings of parameters P9 P10 and P11 that is based on the unit s operating mode the system waits a delay time and then the code LO P appears the buzzer is activated and the compressors and the external fan are stopped The alarm is manual or automatic reset depending on parameter P12 See paragraph 5 6 P AL Alarm pool water flow switch When the input ID2 with H4 2 does not close within the maximum time H17 after starting the pump the code P AL appears the buzzer is activated and the pump and the water heaters are switched off The alarm is manual reset See paragraph on Pool environment management Carel code 030220306 rel 2 1 dated 23 11 07 37 The following table summarizes the effect of the alarms and how to reset them Displayed message Meaning Reset C V R H Supply Condens Buzzer TRIAC fan er fan HR 1 HR 2 Hour counters C1 C2 when resetting the OFF OFF HRF supply fan hour counter HIH high low humidity manual OFF OFF LOH HIT High low ambient manual ON OFF LOT temperature Generic alarm detected by automatic OFF digital input ID3 ON manual OFF OFF in OFF ON absence of fan thermal cut off cai Ee A aa digital input ID1 automatic OFF REM Alarm from pLAN ON manual OFF OFF OFF ON automatic EE EEPROM alarm OFF OFF manual Sa a EST EI probe B1 faulty or automatic OFF OFF ON ON disconnected error E2 prob
12. button more than 3 seconds The time bands refer only to temperature and not humidity regulation which is always based on the same set point The choice among the symbols is always highlighted by having the currently selected symbol flash and leaving the other symbols constantly on and v are used to change the selection making the next symbol in the sequence flash To confirm the selection and pass to the following field use the CLOCK button To set a program after having pressed the CLOCK button for more than 3 seconds the following steps must be performed e set the program start day set the start hour and minutes for the first band set the temperature set point category for the band after programming the band the symbols to continue lt and end gt appear accompanied by the words cont and end cont scrolls cyclically to the other bands setting the start hours and minutes for the second band and so on the current band ends when the successive one starts end stops the programming for that day thus cancelling any unprogrammed bands e after end or after having programmed the final band for the current day the day of the week programmed flashes followed by the word copy Use and v to scroll to the other days which flash in turn confirming the day using the CLOCK button thus extending same program to the selected days The symbols cont flashing and end
13. heating functions can be enabled NEITHER ACTIVE DEFROSTS OR CONDENSATION Probe B3 may be used as the outside temperature measurement Compensation Free cooling and Free heating can be enabled Probe B2 can be used to measure the humidity Carel code 030220306 rel 2 1 dated 23 11 07 24 Aria 5 2 9 Output management Compressor management When powering the controller the compressor s are activated after an initial delay set by parameter R21 During the normal operation the optimisation of the starting is managed using an intelligent activation program as follows e when a compressor is activated it is not shut down within a minimum running period parameter c1 e once the compressor has been shut down it is not re activated within a minimum stop period parameter c2 e a set time interval must elapse between two successive start ups of the same compressor parameter c3 e the second compressor if present may only be started after a set interval parameter c4 from the starting of the first compressor e when there are 2 compressors compressor rotation is enabled if parameter R18 is set to 1 Compressor rotation Compressor rotation is a system which controls compressor activation in such a way as to equalise their operating times The operating logic when 2 compressors are activated is that the first to be started stopped is the first to be stopped started When just one compressor is activated in a system with 2
14. the damper is immediately fully closed Different options can be chosen parameter R27 free cooling only free heating only both enabled and in addition with or without compressors The with or without compressors option indicates that the compressors can or cannot start during free cooling free heating In any case if the outside temperature conditions are not favourable the free cooling and free heating functions are not activated and the compressors start normally Carel code 030220306 rel 2 1 dated 23 11 07 23 Aria The outside temperature is favourable for the activation of Free cooling if Outside air temp lt Ambient temp R28 The outside temperature is favourable for the activation of Free heating if Outside air temp gt Ambient temp R28 R28 defines the minimum differential between the outside and inside temperature The following diagrams explain this type of operation Diagram of free cooling and free heating operation without compressors R27 1 2 3 it is assumed that the outside conditions are favourable As can be seen the damper modulates across the entire amplitude of the temperature differential R3 completely replacing the compressors 100 Free heating Free cooling 100 Setpoint Diagram of free cooling and free heating operation with compressors R27 5 6 7 it is assumed that the outside conditions are favourable As can be seen the damper modulates across the entire amplitude of the temp
15. ambient in case the external temperature with disabled regulation suddenly falls too low this function depends on parameter R14 The minimum variation depending on the unit of measure chosen with S7 is 0 5 C if S7 0 and 1 F if S7 1 PS High and low temperature alarm delay Represents the delay in activation of the high and low temperature alarms The delay is zeroed every time temperature rises drops again above below the low and high limits i e between P3 and P4 P6 Delay in general alarm on ID3 This represents the delay in the intervention of the general alarm on digital input no 3 This delay is recounted whenever the digital input opens and the alarm signal is activated when the time P6 has elapsed if the input is open again P7 Low humidity alarm threshold This represents the humidity threshold below which the low humidity alarm LO H is activated after the delay P5 P8 High humidity alarm threshold This represents the humidity threshold over which the high humidity alarm HI H is activated after the delay P5 P9 Low pressure alarm delay in cooling This represents the delay in the acquisition of the low pressure alarm LO P on digital input no 2 if the unit is operating in cooling mode Alarm always enabled when P9 0 the alarm is immediate P10 Low pressure alarm delay in heating This represents the delay in the acquisition of the low pressure alarm LO P on digital input no 2 if the unit is operating in heating mode Sett
16. as being more efficient Haux relative set point i Haux diff Differential Piazza C1 ON 50 diff Haux ON CI ON Set point fs i r i temperature 100 66 33 of 33 66 100 of differential differential Fig 5 2 3 1 The compressor is in fact switched on at 50 of the temperature differential both in heating and cooling with the supply fan already on at minimum speed if the temperature continues to rise the fact of switching the supply fan to speed two at 66 and speed three at 100 of differential allows the temperature to be smoothly brought back within the set point This system has the following advantages e on minimum temperature variations the supply fan is started if it has not be set for continuous operation at minimum speed circulating the air in the environment overcoming any stratification of the air and providing a certain level of comfort e The compressor starts up at 50 of the differential and no longer at 100 thus accelerating the overall response of the machine to changes in ambient temperature e When the compressor is running there are two further supply fan steps which allow modulation of the refrigeration power both on increase and decrease of the temperature In practice the efficiency of the machine is optimised accordingly the variation of thermal load This logic is of course valid in heating cooling and automatic operating modes In addition the neutral zone func
17. be set to control temperature see chapter no 5 The minimum variation is of 0 5 C or 1 F according to S7 parameter R5 Humidity set point Allows the current humidity set point to be set to control humidity R6 Humidity differential Allows the humidity differential to be set for humidity regulation see chapter no 5 Carel code 030220306 rel 2 1 dated 23 11 07 42 Aria R7 Enable dehumidification If set at 1 it enables the process of dehumidification R8 Auxiliary heater relative set point Allows the set point for the auxiliary heaters as an offset to be subtracted from the main set point parameter R1 less the possible neutral zone parameter R4 to be set The minimum variation is of 0 5 C or 1 F according to S7 parameter R9 Auxiliary heater differential Allows the differential for the control of the auxiliary heaters to be set Identifies a lateral band to the auxiliary heater relative set point The minimum variation is of 0 5 C or 1 F according to S7 parameter R10 Enable auxiliary heaters If set at 1 it enables the auxiliary heaters management R11 Compressors with auxiliary heaters Establishes that when the auxiliary heaters are started the compressors must switch off R11 0 or stay on R11 1 R12 Min temperature set point Establishes the set point minimum limit for temperature control R13 Max temperature set point Establishes the set point maximum limit for temperature contro
18. communication error E TR bit13 NTC control probe error E1 UNOCCUPIED COMFORT NIGHT TIME STAND BY output status for remote control from pCO or pCO the write is significant if enabled by variable 177 See description variable 156 remote probe alarm the write is significant if enabled by parameter L5 bit0 bit1 bit2 bit0 probe B1 error bitl probe B2 error bit2 probe B3 error set point category in manual operation UNOCCUPIED COMFORT NIGHT TIME STAND BY if in time band mode the write is enabled if bit 7 of parameter L5 is equal to 1 AUX YES YES YES YES YES YES Temperature operating mode set AUTO COOL HEAT FAN ONLY If var 162 HEAT COOL var 170 var 162 If var 162 ONLY FAN var 170 COOL 170 If var 162 AUTO depending on Tams and the set point COOL E oa e 1 Carel code 030220306 rel 2 1 dated 23 11 07 Aria PARAMETERS a AUX INDICES DESCRIPTION l d start defrost temperature 30 0 d4 d end defrost temperature d3 50 0 low temperature alarm threshold 0 P3 1 R R R R F F supply fan hour counter maintenance threshold 0 10 0 P P R humidity set point R16 R17 R R high temperature alarm threshold P4 1 150 enable dehumidification 0 1 R10 enable support heaters 0 1 R11 enable compressors with support heaters 0 1 R16 minimum allowed limit for the humidity set point 0 R17 R17 maximum allowed limit f
19. compressors this is done by alternating the compressors used After a certain operating period set by parameter c7 the compressor maintenance required message is displayed Reversing cycle valve management This is controlled by the HEAT COOL AUTO setting on the terminal or by digital input ID1 in the heat pump units Heat heating mode valve de energized Cool cooling mode valve energized Auto the state of the valve depends on the value of the ambient temperature in respect to the set point The state of the valve is changed if required at the moment the actuators are activated Parameter H14 can be used to choose the logic of the relay dedicated to the reverse cycle valve When the unit is switched off or when the set point has been reached stopping the devices the valve remains in its existing position until the next request Heater management When the instrument is configured for 2 or 3 heaters SEQUENTIAL heater management is used The heaters are switched on off in sequence with a time interval parameter c8 between the activation of heater 1 always activated first heater 2 always activated second and heater 3 always activated third During shut down heater 3 if activated is switched off first then heater 2 and finally heater 1 Auxiliary heater management The auxiliary heater is activated if enabled by parameter R10 when the heat pump system is not able to maintain the desired temperature such as when the outside temper
20. on the external heat exchanger Humidifier management When the humidity probe is available on the terminal parameter S1 2 and the OP relay is programmed to drive a humidifier parameter H2 0 this is commanded as described for reverse operation 5 2 1 10 Remote operating mode signal Setting parameter H2 4 the OP relay is driven by Aria to signal the current operating mode to an external device In such a case the output will be energized while cooling and de energized while heating in any case the OP relay is fitted with double terminals This indication is more reliable than the status of the reverse cycle valve as the latter changes during defrosts 5 3 Zone control version Zone control is performed using a Carel pCO or pCO programmable controller placed in the centralized AC unit connected to an Aria terminal for each zone through Carel pLAN network All the following references to the pCO are also valid for the pCO unless otherwise specified These exchange with each other the parameters the information required for regulation and other information on the status of the system The user interface differs from that on the stand alone model in some aspects 1 The CLOCK button no longer has the function of setting of the time as this is provided by the pCO via pLAN It still however maintains the function of setting the time bands 2 The MODE button alternates between the only two operating m
21. operating categories Comfort Night time Unoccupied Parameter H18 For the management of the water flow switch see paragraph 5 6 IMPORTANT given that in environments such as pools the atmosphere is very aggressive due to the presence of chlorine Aria should be installed in a protected place or in a separate room leaving only the probes in the pool environment being controlled Use Aria terminals fitted for remote probes codes TATOOOR and temperature and humidity probes for industrial use or in any case with good atmospheric resistance Carel code 030220306 rel 2 1 dated 23 11 07 28 Aria 5 5 pLAN connection Even though connection to a pLAN network is designed mainly for the zone control version the stand alone version may also be connected to a Carel pCO local network Connection is made using the RS 485 standard with 2 leads and asynchronous half duplex serial transmission To overcome the fact that the code for the Aria control resides in ROM and thus can not be reconfigured according to the devices which make up the network as it is normally done for pCO devices some limits have had to be introduced in respect to normal pLAN network management e Aria can receive data from any pCO board yet can only send data to the pCO board whose network address is set by parameter L2 e incoming data is identified using the address described in the following tables RX INDEX ADD e outgoing data is written to the physical addre
22. reducing the life span of the system s components Vice versa choosing a differential which is too wide while providing system stability means that the values reached during regulation may vary greatly from the set point The terms DIRECT and REVERSE indicate the two types of regulation logic for the device The control uses direct logic when the controlled measurement e g temperature or humidity tends to increase aiming to reach the desired value set point e g cooling dehumidification it uses reverse logic when the controlled measurement tends to decrease aiming again to reach the desired value set point e g heating humidification Automatic AUTO operation refers to when the device works in both direct or reverse logic according to the value of the controlled measurement in respect to the set point The regulation set point for the Aria control is a lateral band type that is the band identified by the differential is aside the set point graphically on the right or on the left of the set point if we are respectively cooling or heating Normally the actuators are deactivated when the value of the controlled measurement is equal to the set point For temperature regulation it is however possible to define a zone centred around the set point called the Neutral zone see Fig 5 1 1 inside of which the actuators are already deactivated This type of regulation is proportional The stand alone
23. starts working correctly E3 B3 probe error on power board Signals the malfunctioning of the probe Blon the power board This alarm is only detected if the defrost function is enabled parameter d1 In the case of an alarm the control provides the alarm message E3 and the buzzer and the alarm relay are activated The alarm is reset automatically that is when the sensor starts working correctly E DF Defrost alarm If the defrost process ends at the maximum time specified by parameter d6 the alarm signal E DF is activated The alarm is reset automatically that is when the following defrost cycle has been performed correctly It can also be reset by pressing the RESUME button for more than 3 seconds HI H High humidity alarm When the humidity measured by probe B2 rises above the value specified by parameter P8 for a time greater than P5 the high humidity alarm signal HI H is activated The alarm relay and the buzzer are not activated LO H Low humidity alarm When the humidity measured by probe B2 falls below the value specified by parameter P7 for a time greater than P5 the low humidity alarm signal LO H is activated The alarm relay and the buzzer are not activated Th F Fan thermal cut off alarm When digital input ID1 with H3 3 is closed the code Th F appears the buzzer is activated and all the outputs are switched off The alarm is manual reset that is after the cause of the alarm has been removed See paragraph 5 6 LO P
24. the deactivation of the actuators and that of the supply fan in order to remove the remaining heat in the coils F3 Hour counter supply fan Indicates the number of fan operating hours During the display of the operating hours the simultaneous pressing of the front buttons soon after having pressed the SET button resets the counter and thus cancels the request for maintenance alarm HR F The unit of measure used for the display is in thousands of hours while the counter resolution is 0 5 hours F4 Supply fan operating hours threshold Establishes the number of fan operating hours beyond which the maintenance intervention message HR F is activated The value F4 0 disables this function FS Supply fan operating with actuators deactivated With F5 0 the supply fan follows the functioning of the actuators apart from the delays set using parameters F1 and F2 With F5 1 the fan remains on also when the actuators are deactivated With F5 2 the supply fan follows the behaviour of the Ni m actuators with night time setpoint 3 or unoccupied setpoint Ml whereas it is always ON with Comfrot setpoint 2 Carel code 030220306 rel 2 1 dated 23 11 07 44 Aria F6 External fan shut down delay Establishes the delay between the deactivation of the compressors and the fan on the condensing coil F7 Operation of the external fan Depending on the setting of F7 the external fan may operate in the following modes F7 0 together with the compressor
25. 1 if the alarm on ID3 goes off all devices are stopped ID2 ON OFF water pump alarm low pressure alarm digital input If H4 0 the input is disabled If H4 1 and the contact is detected open Aria is switched off independently from the keypad commands If the contact is closed Aria is enabled and operates depending on the keypad commands If H4 2 digital input ID2 is used to connect a water flow switch if within a certain time H17 after starting the pump the flow switch is not yet closed an alarm is generated with P AL blinking and the pool pump and heating functions are deactivated until the alarm is reset automatically For further information see the paragraph on Pool environment management If H4 3 digital input ID2 is used to manage the low pressure alarm this is an alarm with different delay times according to the operating mode P9 delay in cooling P10 delay in PdC P11 delay in defrost The effect is to shut down the compressors and the external fan if present and the text LO P blinks on the display The parameters P10 and P11 if set to 0 disable the alarm in the PdC and or defrost modes The alarm may not on the other hand be disabled in Cooling mode so that if P9 0 the alarm is immediate The reset may automatic manual or mixed as desired The selection is made using parameter P12 which has the following values 0 always automatic reset 1 always manual reset 2 5 number of automatic resets the following alarm is m
26. 14 4 2 4 2 Setting the humidity set point SET button for 3 seconds 14 4 2 5 Programming the parameters 14 4 2 5 1 Setting the DIRECT parameters SET HOLD buttons we 15 4 2 5 2 Setting the USER parameters installer SET MODE buttons ii 2415 4 2 5 3 Setting the FACTORY parameters configuration SET MODE buttons for more than 3 seconds 15 4 2 5 4 Setting the default parameters SET RESUME buttons when powering the controller 15 4 2 6 Using the Hardware keys Gi AR OT rata 16 4 2 6 1 Copying parameters from the removable hardware key to the controller SET buttons when powering Aria or even only button when powering Aria i 4 2 6 2 Copying parameters from the controller to the removable hardware key SET v buttons when powering Aria st 4 2 7 Real time clock and time bands ie 4 2 7 1 Setting the time CLOCK button version with built in clock only ie 4 2 7 2 Time bands 4 2 7 3 Setting the time bands CLOCK button more than 3 Seconds ii 4 2 8 Alarm management and general functions nai ricevute pollaio ia alal rt 4 2 8 1 HOLD button i cs 4 2 8 2 RESUMET bUttons ipriii Lala ia ER Aa o Aiace 17 4 2 8 3 RESUME button for more than 3 seconds i 17 4 2 8 4 Aa kv buttons simultanecotsly 3 4 3 stiles enced IRE 17 OZ NA
27. 18 5 1 General 18 5 2 Stand alone version 18 5 2 1 Proportional regulation algorithm 18 5 2 2 Proportional Integral regulation algorithm 20 5 23 Split operation 20 5 2 4 Defrost management i 21 5 2 4 1 Forced defrost due to low outside temperature i 21 5 2 4 2 Mantial defl ost ci lita REANO soscbegs en cious a R ARIAN 5 2 4 3 Compressor stops at start and end defrost wi 5 2 4 4 Supply fan activation delay after defrost M e 5 2 4 5 Smart detrosticy cles sce ohi a ava cs brane wdeas AA AR I AI 5 2 5 Dehumidification management si 5 2 5 1 Dehumidification in Night time or Unoccupied mode i 22 5 2 5 2 Dehumidification stop temperature i 22 5 2 6 Automatic set point compensation gt 5 2 7 Fr e coolmg amp Rree heatiigiini sor EEEE EEEE A AI O A ia 5 2 8 Using probes B2 and B3 cr ie i AL Rara tara 24 5 2 9 Output management 5 3 Zone control version a 5 3 1 Regulation algorithmi i grsnsohtonlialli illa lele al E sone ev as ee AS AGES ato hes 27 53 2 Damper Management ttt sacescadduscduee CAI NATA CIANI doceseneduscbices LATO STINTINO LATITANTE ASTRI Ro TI 28 5 4 Pool environment management 28 5 5 PLEAN COMME CHI ON cesses strategies A I ON IO 29 5 5 1 ES OF Variables Mis AOA Mesa Aas tna ARE n il can gii
28. 3 11 07 12 Aria 4 2 2 Programming 4 2 2 1 F Button and Button v The and v buttons allow the increase decrease of the current set point by 1 F or 0 5 C Specifically in time band operating mode indicated by the clock symbol pressing the and v buttons temporarily modifies overrides the current set point The duration in hours is shown at the bottom of the display and being decreased every hour until the preset value elapses parameter H8 the controller will then return to the previous operating mode time bands During the modification phase the display shows the temperature set point on the large display in the top left in the place of the measured temperature if this is not already displayed on the small display in the top right this function can be selected using parameter H7 Modifications are acknowledged by the controller 5 seconds after releasing the buttons when the related symbol stops blinking 4 2 3 Selecting the machine s operating mode MODE button Aria allows different operating modes of the air handling unit described below e OFF the thermostat does not perform any control however it prevents the temperature from dropping below the safety low limit see paragraph 4 2 4 1 e COOL the thermostat controls cooling only e HEAT the thermostat controls heating only e AUTO heating and cooling control automatic The system switches from one function to the other depending on the value
29. 5 2 4 5 d13 Manual defrost By setting the value of this parameter to 1 the machine performs an immediate defrost at the end of the defrost the parameter automatically returns to 0 It is also possible to stop the defrost in progress by manually setting d13 to 0 7 2 6 Alarms P parameters P1 Enable buzzer Indicates the duration of the buzzer signal in the case of an alarm e if P1 0 the buzzer is never started e with a value between 1 and 14 the buzzer is automatically muted after the related value in minutes e if P1 15 the buzzer remains active until the cause of the alarm has been removed or the RESUME button is pressed P2 Type of remote alarm ID3 Establishes the type of response to an alarm detected by ID3 At the contact opening there may be a simple display message without any intervention on the outputs P2 0 or may be considered as a serious alarm and thus activate the alarm relay and de energize all outputs P2 1 P3 High temperature threshold Represents the temperature threshold above which the high temperature alarm HI T is activated after P5 delay The minimum variation depending on the unit of measure chosen with S7 is 0 5 C if S7 0 and 1 F if S7 1 P4 Low temperature threshold Represents the temperature threshold below which the low temperature alarm LO T is activated after P5 delay Such limit is valid even when the machine is OFF allowing the heat actuators start up and avoiding damages in
30. 7 48 Aria 7 2 8 pLAN communication L parameters L1 pLAN serial address Establishes the Aria address or for serial connection to a Carel pCO or pCO controller or for connection to a supervisor via RS485 line WARNING turn the machine off and on again after changing this parameter L2 pLAN destination address Establishes the address of the Carel pCO control to which the variables are sent via pLAN network If L2 0 the sending of the variables is disabled L3 pLAN page Represents the page of memory of the Carel pCO to which the variables are written The pages contain 256 bytes each For example L3 181 0xB5 indicates the pages from 0xB500 to 0xBSFF L4 Damper running time Represents the time taken by the damper to move from being completely closed to completely open For correct regulation this parameter must be set with care as the control calculates the position of the damper based on the activation time of the closing and opening commands The time L4 is valid both for the damper in Stand Alone mode that is using power board TAZONE0000 and for the damper in Free cooling and Free heating LS Source selection Each of the 8 bits of this parameter has a precise meaning It allows the origin local bit 0 or from pLAN bit 1 of a number of variables to be selected bit 0 probe BI bit 1 probe B2 bit 2 probe B3 bit 3 not used bit 4 digital input ID1 bit 5 digital input ID2 bit 6 digital i
31. Aria electronic multiprocessor controller Installation and user manual LEGGI E CONSERVA gt QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS CAREL Technology amp Evolution LEGGI E CONSERVA gt QUESTE ISTRUZIONI lt READ AND SAVE THESE INSTRUCTIONS We wish to save you time and money We can assure you that a thorough reading of this manual will guarantee correct installation and safe use of the product described Aria Contents Introductioni lt lt iic rain ili celeri 4 1 GENERAL CHARACTERISTICS vonn sienties aiseee onir ns aaiae e Eee eaS ee eenioeeneneeenieneeeeeenioneeezee ein eenionenenee 4 1 1 FUNCHONS annii ea RO E E E E E IIC RE N O 4 1 2 Terminal ctosi ideale LALA ELLA RL LELE LARA 4 1 3 Power board for the control of stand alone air conditioning units code TABASE5000 i 5 1 4 Power board for the control of a motorized damper multi zone system codeTAZONE0000 iii 6 1 5 Codessacocto dani en I i eet ete tan eek oa Oe te ciate wares tense a eel tet vas E AEE 6 Zi VAPPTCATIONS cezceieiccssstses IR RETORICA ae 2 1 Stand alone applications 2 1 1 Heatitig Only s is cieli iaia 2 1 2 Cooling Only ironia ii IS EE ae E a E ione Love lola oe Lila illa iaia 2 1 3 Conventional 2 1 4 Heat pump nile iaia al ali ia iaia li hu pala EEEE AAE EEEE 2 1 5 SULLO RR RE A 2 2 Multi zone control 2 3 Display t
32. O SI a RL3 RLZ RLI LCi Riawx FI F2 F3 v_ OP Tab 2 1 5 1 2 2 Multi zone control This application can be selected by setting parameter H1 15 referring to Fig 1 4 1 the meaning of the outputs is the following Tab 2 2 1 2 3 Display terminal This application can be selected by setting parameter H1 16 and allows you to use the terminal as a display unit to measure the temperature humidity connected to a pCO via pLAN serial line There is no need then to use any Aria power card neither TABASE nor TAZONE 2 4 Pool environments HL RLT RLS RISI RIA BIS RLZ RLL CS G3 R a ROR Table 2 4 1 2 5 Heat pump Energy Saving ci c2 FI Est Es v OP Table 2 5 1 dual compressor heat pump with energy saving 2 6 Split cooling only PRI RITI MES RES RIA IS RL PLL cn ae ee ee OR Table 2 6 1 Carel code 030220306 rel 2 1 dated 23 11 07 8 Aria 3 INSTALLATION 3 1 Terminal installation For correct installation the following warnings must be heeded e always disconnect the power supply before performing any operations on the board during assembly maintenance or replacement e the terminal must be mounted vertically allowing for air to circulate through the instrument s vent holes Avoid places where the measurement of the ambient temperature by the internal sensor may be altered such as outside walls near doors leading outside in d
33. Power board communication error Signals an error in the serial communication between the terminal and the power board the power board does not receive the data The alarm signal E ST is displayed the buzzer is activated and all outputs are de energized The LED on the power board blinks twice normally once in 3 seconds The alarm is reset automatically that is when communication is established again If the alarm occurs check the two lead serial connection between the terminal and the power board Carel code 030220306 rel 2 1 dated 23 11 07 36 Aria E1 B1 temperature regulation probe error Signals the malfunctioning of the temperature probe used for temperature regulation B1 Also check the position of jumper J1 see paragraph Terminal installation In the case of an alarm the controller provides the alarm message E1 the buzzer and the alarm relay are activated and all outputs are de energized except for the supply fan The fan stays on to allow air circulation in public areas The alarm is reset automatically that is when communication is established again E2 B2 auxiliary probe error Signals the malfunctioning of the B2 active probe Also check the position of jumper J2 see paragraph 3 1 In the case of an alarm the control provides the alarm message E2 the buzzer and the alarm relay are activated and the humidification and dehumidification functions are suspended The alarm is reset automatically that is when the sensor
34. ached within parameter d6 defrost is however terminated and the message E DF is displayed If d2 2 the defrost ends when the ID3 digital input opens if this does not occur within parameter d6 defrost is however terminated and the message E DF is displayed d3 Start defrost temperature Establishes the temperature below which the defrost cycle begins d4 Temperature to terminate defrost Establishes the temperature above which the defrost cycle ends d5 Minimum time to start defrost Establishes the time which the temperature on the external heat exchanger must remain below the start defrost threshold d3 with the compressor remaining on to allow the defrost cycle activation Such interval is re calculated every time the temperature rises again above the start threshold d3 d6 Maximum defrost duration When timed defrost termination is enabled d2 0 this establishes the duration of the defrost cycle if on the other hand defrost ends according to temperature or digital contact it represents the maximum duration in this case acting as a safety feature the alarm message E DF will be displayed d7 Delay between two defrost requests Represents the minimum delay between the end of a defrost cycle and the start of the next one Carel code 030220306 rel 2 1 dated 23 11 07 45 Aria d8 Auxiliary heaters during defrost If set to 1 of the auxiliary heaters will be starting while defrosting to limit the fall in temperature of the supp
35. already elapsed that is were already requested by the system before the time elapsed but were waiting for the start signal From this moment on the time d7 is further decreased for each defrost that starts when the time has already elapsed Vice versa d7 after having been decreased is increased a little at a time if the defrosts do not start so frequently that is are requested some time after the time d7 has elapsed The parameter defining the value that the time between defrosts is increased or decreased by is d10 and is expressed in minutes Carel code 030220306 rel 2 1 dated 23 11 07 21 Aria The time between defrosts may be decreased by a maximum of 60 of the set value if for example d7 20 minutes it may be decreased by a maximum of 12 minutes and the minimum value it may assume is 8 minutes it cannot be decreased below this level If d10 0 the function is disabled When switching Aria off and on again or after a blackout the time d7 is reset to its original value Below is a time diagram relating to the intelligent defrost function and to the compressor stops as can be seen the temperature at the end of the defrost cycles is below the activation threshold two consecutive times which therefore causes the time d7 to be decreased d3 Temperature __ d9 di0 d9 d10 d7 d5 5 2 5 Dehumidification management The process of dehumidification is initiated by activating the cooling actuators when the ambient humidity e
36. ambient humidity The instrument s user interface has been designed for ease of use featuring e the use of a complete and large sized liquid crystal display e the ergonomic separation of the buttons for programming on the side from those used for the immediate modification of the desired temperature set point placed on the front e the back lighting of the buttons and the display useful when there is not enough light e a built in buzzer can be bypassed using a specific parameter which signals any operating anomalies of the unit and also follow the pressing of each button e The presence of an optional real time clock allows the instrument to be independently time band programmed each of the seven days of the week Being fitted with an independent power supply it constantly maintains the correct time even in the case of interruption to the main power supply The terminal is very easy to install as e just 2 leads connect the terminal to the power board e the quick insertion terminals used allow the connection of the cables to the terminal using the rear shell of the box the electronic parts are connected at the end as the front panel is closed e the instrument may be programmed by simply copying the settings from another master machine using a hardware key
37. and the script cont and memo appear on the alphanumeric field e use memo to exit from programming mode and enable time band operation If there are days which have not been set these continue to use the previous program On pressing the RESUME button on the other hand or after 1 minute of inactivity the modifications entered are lost e use cont to program the remaining days The time interval identified by time current band is shown on the display using the clock symbol divided into 1 hour sections Thus the time band from 3 to 7 o clock is indicated as follows gt ay Carel code 030220306 rel 2 1 dated 23 11 07 16 Aria 4 2 8 Alarm management and general functions 4 2 8 1 HOLD button This button has the following functions e exits the parameter programming phase saving the modifications entered on models with built in clock it passes from time band to manual operation in such a situation the word HOLD appears and the comfort set point resumed independently from any previous operating Set Point 4 2 8 2 RESUME button This button has the following functions e exits from the current programming phase without saving the modifications exits from overriding the set point in time band operation models with real time clock exits from manual operation HOLD and returns to time band operation models with real time clock resumes the comfort set point on models without real time
38. anual reset The count of the number of alarms generated refers to a period hour from the first alarm after this period the count is reset and starts from 0 again Mixed management allows the possibility to restart the unit in the event of an alarm avoiding service intervention unless strictly necessary ID3 General alarm end defrost Remote On Off digital input If H5 0 the input is disabled H5 1 The digital input takes the function of general alarm input In this case another parameter P2 determines the response of the control to this alarm only visualization without any effect on the outputs P2 0 or a serious alarm that activates the alarm relay and blocks all the outputs P2 1 The general alarm is delayed by the time set for P6 If H5 2 the opening of the contact ends the defrost cycle for this to occur parameter d2 end defrost mode must in any case be equal to 2 If H5 3 the input is used as a Remote On Off using the same logic described for input ID2 This function is repeated in two inputs to allow the possibility of using it together with the Low pressure alarm function 5 7Supervisor ARIA can be connected to a supervisor installed on a PC via RS485 serial line The CAREL communication protocol is used in this case however the CAREL Gateway also allows connection via Modbus and other protocols The three lead RS485 line is physically connected using the same connector as the pLAN line therefore the Aria ter
39. ated 23 11 07 51 Aria 9 3 Triac power board for multi zone applications power supply 24Vac 10 15 at 50 60Hz protected by external 1 AT fuse minimum electrical power required VA connection to terminal using a bipolar cable with section from 0 5 to 1 5mm depending on the length of the connection from 0 to 50m sec min 0 5mm from 50 to 150m sec min Imm maximum distance from terminal m analogue inputs 1 for NTC Carel probe field of measurement 40 C 80 C resolution 0 5 C 1 F accuracy 1 C 2 F between 0 C and 50 C 1 5 C 3 F between 40 C and 0 C and between 50 C and 80 C digital outputs 2 x 24 Vac triac outputs 8VA max action disconnection type for each individual 1C circuit Tab 9 3 1 Avoid installation near power cables using shielded cables if possible In such a case connect the shield to terminal GO reference for the power supply leaving the other end free 3 optically isolated 24Vac Vdc inputs The 24Vac Vdc power supply of the inputs must be different from that of the board to allow true optical isolation min 0 5 max 2 5 operating temperature 0T60 C 90 UR non condensing storage temperature 20T70 C 90 UR non condensing surface temperature limits as per operating temperature DIN rail index of protection IP40 Tab 10 3 2 9 4 Common characteristics for components indicated above classification regarding protection against electrical shock to be i
40. ategory is automatically set by the current program as previously saved If and v are pressed within 5 seconds of pressing SET when category symbols are flashing the set points of the selected category can be modified The default values for the various categories are set C F 21 70 do ssn Tab 4 2 5 1 1 Graphically the regulation obtained in the three different situations and in AUTOmatic operating mode is the following Comfort set Comfort set point point A n Differential Differential Differential Differential Differential Differential mm gt HON CON gt HON CON Comfort set temperaturne Night Night temperature Unoccupied Unoccupied Temperature point Deviation Deviation Devation Deviation Comfort operations Night operations Unoccupied operations When the unit is turned off symbol visualized in the display or on in MODE FAN Aria will still start the heating stages whenever ambient temperature drops below the low limit set with parameter P4 Carel default value is 10 C in order to avoid any damage in the room In any case this anti freeze function can be excluded using parameter R14 The right value of each category is related to the season and the personal idea of comfort of each user 4 2 4 2 Setting the humidity set point SET button for 3 seconds This can only be modified if the presence of the humidity probe has been enabled using S1 2 The set point is mo
41. ature is too low If this is an occasional occurrence the compressors may be left on otherwise they are shut down selected by parameter R11 still respecting the time delays protection Supply fan management The supply fan may feature from 1 to 3 speed operation In order to reduce current absorbed during start up the activation of the corresponding outputs is never simultaneous but rather delayed by parameter c8 The button Fan selects the fan operating mode energized whenever at least one actuator is operating or always ON To reduce the stream of cool air in the ambient the supply fan is stopped while defrosting except when the auxiliary heater are set to be energized in such situation this is performed in order to evacuate the energy provided Using the MODE button the only ventilation mode can be selected FAN script appears in the alphanumeric field disabling temperature and humidity regulation Particularly depending on the speeds of the fan available and the machine model selected the symbols 1 2 3 and auto next to the fan symbol which alternate on pressing the FAN button have the following meaning Only ventilation mode enabled by the MODE button models with fan at single speed OFF the supply fan is off 1 supply fan always on 2 3 auto not available F1 F2 F3 ON FAN OFF F F2 F3 Cooling models with supply fan provided with three speed rates split unit OFF the su
42. clock silences the buzzer 4 2 8 3 RESUME button for more than 3 seconds Manually resets the active alarms cancelling the message on the display and de energizing the alarm relay if the alarm conditions do not persist any more 4 2 8 4 v buttons simultaneously This displays a value marked R SP in the lower display the value corresponds to the effective start up temperature of the devices in the current situation For example in cooling operation with Comfort Set 21 0 C Night time Set 4 0 C active and a compensation of 2 0 C the effective start up point of the compressors is 27 0 C that is the value displayed by R SP This may be useful in the test phase The firmware version is displayed by holding the arrow buttons for more than 3 seconds Carel code 030220306 rel 2 1 dated 23 11 07 17 Aria 5 OPERATION 5 1 General The term SET POINT refers to the point which sets the position of the control s working range within the interval of measurement of the value being regulated The set point thus identifies the regulation value temperature or humidity that the control aims to maintain The term DIFFERENTIAL on the other hand refers to the value assigned to the control s working range Thus choosing a narrow differential means that the control will operate very close to the set point with minimum variance from the set value yet this also means an increase in the number of interventions of the control thus
43. dified using the and v buttons modifications are acknowledged by the controller 5 seconds after releasing the buttons The humidity set point can also be set by parameter RS 4 2 5 Programming the parameters The user has numerous parameters available to customise the operation of the control making it adaptable to a wide range of needs and applications The parameters have been divided into 3 levels 1 DIRECT D directly accessible without protection code 2 USER U accessible with protection code installer level 3 FACTORY F accessible with protection code at factory level manufacturer level Carel code 030220306 rel 2 1 dated 23 11 07 14 Aria 4 2 5 1 Setting the DIRECT parameters SET HOLD buttons 2292 SN ric Leo Fig 4 2 6 1 1 The display shows the first of the main machine operating parameters available The parameters are scrolled using the and v buttons Once having selected the parameter to be modified proceed as follows e press the SET button to enter modifying mode the selected parameter flashes e press the and v buttons to modify the value of the parameter e press the SET button to confirm the modification To exit programming mode and accept the modifications to the parameters press the HOLD button To exit programming mode and NOT accept the modifications to the parameters press the RESUME button or wait for 1 minute of inactivity the final 15 seconds ar
44. display Modify the val odify the value Sensor B2 reading or ambient Thermometer associated to temperature set point temperature measurement Cooling ON Ambient Ambient temperature set point temperature displayed Exit Lm da Indicates B2 probe display Continue TTT 7 Fan operating mode Time band indication Me Tu We Th Fr Sa e l VA NIA RTA i Heating ON Kay yy yN Be iM DE I pri Fas 1 D i J OFF Set point override Alphanumeric field Set point mode for time and info unoccupied comfort night Set point override USER parameter remaining hours Fig 4 1 1 In particular e the symbol always on indicates actuators active in cooling mode e the 4 symbol always on indicates actuators active in heating mode If either symbol is flashing this indicates that the actuators should be activated yet external causes prevent them from doing so timers alarms etc For a detailed description of the other symbols please refer to the paragraphs on the Description of the button meaning and OPERATION 4 2 Description of the button meaning 4 2 1 Front and Side buttons The front buttons are the most important and thus are easier to reach being large and placed on the front panel of the instrument These allow the immediate setting of the desired temperature set point The side buttons allow access to all the other functions of the control Immediate programming Carel code 030220306 rel 2 1 dated 2
45. e 1 gt o Differential Neutral zone Differential PISA Fig 5 2 1 6 Pout Set point H1 H2 ON H1 H2 ON H2 H1 H1 H2 OFF temperature gt temperature lt lt sr F gt Differential Neutral zone Differential Fig 5 2 1 7 Fig 5 2 1 8 4 R8 5 A R _ R322 gt R3 2_ N R4 1 R41 Temperature C 12 14 15 16 17 19 20 21 R1 18 Fig 5 2 1 9 The Fig no 5 2 1 7 and 8 show respectively reverse without neutral zone and reverse with neutral zone In Fig 5 2 1 9 provides a description of a heat pump unit with 2 compressors and 1 auxiliary heater in AUTO operation with the following parameter settings R1 18 R3 6 R4 2 R8 6 R9 2 Humidity regulation Fig 5 2 1 10 is very similar to the temperature one humidification reverse is driven by a single stage relay OP programmed accordingly H2 0 while dehumidification is performed by the available cooling stages which according to the model may be 2 Graphically a 2 compressor unit with relay OP programmed to drive an humidifier is hereafter indicated Differential Differential 50 humidity Hum set point _ Fig 5 2 1 10 Neutral zone is not available on humidity control Carel code 030220306 rel 2 1 dated 23 11 07 19 Aria 5 2 2 Proportional Integral regulation algorithm If system s point of equilibrium is required to correspond to the value of set point more sophisticated regulation must be imposed Int
46. e B2 faulty or automatic humid and ON ON disconnected error dehumid OFF eeeh E3 disconnected error Defrost cycle over automatic correct OFF OFF maximum time defrost performed or by pressing RESUME button alarm LOP low pressure alarm automatic or manual compress OFF ON OFF PAL pool water flow switch manual pump and OFF alarm water heat OFF Key symbol C H R V meaning compressors humidifier heaters reverse cycle valve No action Carel code 030220306 rel 2 1 dated 23 11 07 38 Aria NOTES action delayed by P5 delayed by P5 if P2 0 delay P6 if P2 1 serious alarm delay P6 if P2 0 if P2 1 serious alarm autom when powering man when operating action delayed by P9 P10 P11 action delayed by H17 Tab 6 2 2 Aria 7 PROGRAMMING See Programming the parameters for how to access the parameters 7 1 List of parameters The table below gives the following information for each parameter the code which appears on the display COD the type D U or F see Programming the parameters the operating range MIN MAX the unit of measurement used UNIT C degrees Centigrade F degrees Fahrenheit s seconds min minutes h hours Khrs thousands of hours rH relative humidity the minimum variation allowed VAR the default value DEF a brief description MEANING the visibility of the parameter VISIBILITY The visibility of the parameter determines if a parame
47. e for the Free cooling or Free heating functions to be activated Free cooling can be enabled when the following is true Outside Temp gt Inside Temp R29 Free heating on the other hand can be enabled when Outside Temp lt Inside Temp R29 R30 heat cool selection differential from B3 Sets the difference between B1 and B3 to switch mode between cooling and heating 7 2 3 Compressor and heater activity c parameters c1 Minimum running time Sets the time which the compressor must remain ON after start up even if it is not effectively requested c2 Minimum off time Sets the time which the compressor must remain OFF after being switched off even if its start up is effectively requested During this phase the ice or flame symbols on the heat pump model flash c3 Minimum time between two start ups of the same compressor Sets the minimum time which must elapse between two successive start ups of the same compressor If this time interval occurs during this phase the ice or flame symbols on the heat pump model flash c4 Minimum time between the start up of the two compressors Establishes the start up delay between the two compressors in order to reduce current absorption in case there is a simultaneous request c5 Hour counter compressor 1 Indicates the number of operating hours of compressor 1 During the display of the operating hours the simultaneous pressing of the front buttons soon after having press
48. e set point decreases for each degree less in the outside temperature The value is calculated as follows Original Set R3 4 C T outside R24 If T outside gt Original Set R3 4 C there is no compensation When R24 0 there is also no compensation R25 Maximum value to decrease set point by for compensation Maximum value that the set point can be decreased by due to the compensation When reaching this maximum decrease value the compensation function no longer has effect R26 Maximum value to increase set point by for compensation Maximum value that the set point can be increased by due to the compensation When reaching this maximum increase value the compensation function no longer has effect R27 Enable Free cooling and Free heating This parameter is used to enable the Free cooling and Free heating functions individually or together R28 Differential for Free cooling Free heating activation This is the minimum allowed difference between the inside and outside temperature for the Free cooling or Free heating functions to be activated Free cooling can be enabled when the following is true Outside Temp lt Inside Temp R28 Free heating on the other hand can be enabled when Outside Temp gt Inside Temp R28 Carel code 030220306 rel 2 1 dated 23 11 07 43 Aria R29 Differential for Free cooling Free heating deactivation This is the maximum allowed difference between the inside and outside temperatur
49. e signalled by the flashing of the characters on the display 4 2 5 2 Setting the USER parameters installer SET MODE buttons These are the machine s working parameters and are password protected to avoid access by non authorized persons First of all the access code 22 must be entered using the and v buttons and confirmed using the SET button when setting the code the right display shows the text Usr telling the user what branch they are in Fig 4 2 6 2 1 Proceed then as per the setting of the DIRECT parameters The USER parameters also comprise the DIRECT parameters The USER only parameters are signalled by the key symbol e La i Om Pa E III Fig 4 2 6 2 2 Pressing the MODE button during the modification of a parameter enables a DIRECT parameter to become a USER parameter and vice versa On displaying the parameter in question the key symbol will appear or disappear 4 2 5 3 Setting the FACTORY parameters configuration SET MODE buttons for more than 3 seconds These are the machine s configuration parameters They are protected by a separate code from the USER code to allow only specific persons to access the data First of all set the access code 177 using the and v buttons and confirm it using the SET button when setting the code the right display shows the text Fac telling the user what branch they are in Proceed as per the other parameters 4 2 5 4 Setting the default para
50. e terminals Cn NOn for connection of controlled devices Jumper J3 located in the centre of the card is available for the selection of the digital input power supply For more details see Installation of the relay power board stand alone system see ph 3 3 The board also features a green LED which provides a variety of information coded according to the number of flashes emitted in a 3 second period e 1 flash every 3 seconds normal operation e 2 flashes every 3 seconds serial communication error the power board is not receiving the data sent by the terminal e 3 flashes every 3 seconds serial communication error the terminal is not receiving the data sent by the power board Carel code 030220306 rel 2 1 dated 23 11 07 5 Aria 1 4 Power board for the control of a motorized damper multi zone system codeTAZONE0000 This board manages the motorized inlet air damper with a 3 point control typically in multi zone applications Its main features are e two 24Vac triac outputs to control damper opening closing e three multifunctional digital inputs see 5 6 55 So dare e one analogue input for automatic cooling heating selection using the probe located in O00 omSttQ the air duct see 5 2 8 Ssse__Ssssiss The following areas of connection can be identified on the board e Gand GO for power supply 24Vac e terminals T and T for connection to the terminal e terminals ID COM ID1
51. ed 1 7 Fan speed 2 8 Fan speed 3 9 Humidifier 10 Alarm system 11 External fan 12 Water pool pump 13 Pool water heating element 1 14 Pool water heating element 2 15 Not used RX INDICES percentage of damper opening humidity set point humidity set point no write if is in parameter modification mode local clock HOURS local clock MINUTES local clock DAY manual operating mode AUTO COOL HEAT FAN ONLY fan operating mode OFF AUTO SPDI SPD2 SPD3 arm signal 1 alarm from pLAN REM 164 it7 defrost over maximum time alarm E DF EEPROM error at boot EE run time EEPROM error EE it10 not used bit14 0 1Vdc probe error E2 bit15 power board probe error E3 Alarm signal 2 bit 0 pool pump alarm P AL bit 1 fan thermal cut off alarm Th F bit 2 not used bit 3 not used bit 4 high humidity alarm HI H bit 5 low humidity alarm LO H bit 6 low pressure alarm LO P machine status flag 165 bit 0 clock present internal or remote bit 1 clock operating correctly 166 bit 2 internal clock present bit 3 0 gt manual 1 gt time bands bit 4 not used bit S options present 167 168 169 set point category compressor maintenance alarm 1 HR 1 compressor maintenance alarm 2 HR 2 supply fan maintenance alarm HR F high temperature alarm HIT low temperature alarm LOT alarm from digital input E ID it11 terminal communication error E SR bit12 power board
52. ed the SET button resets the counter and thus cancels the request for maintenance HR 1 alarm The unit of measure used for the display is in thousands of hours while the counter resolution is 0 5 hours c6 Hour counter compressor 2 Indicates the number of operating hours of compressor 2 During the display of the operating hours the simultaneous pressing of the front buttons soon after having pressed the SET button resets the counter and thus cancels the request for maintenance HR 2 alarm The unit of measure used for the display is in thousands of hours while the counter resolution is 0 5 hours c7 Compressor operating hours threshold Establishes the number of compressor operating hours beyond which the maintenance intervention messages HR and HR 2 are activated The value c7 0 disables this function The unit of measure is thousands of hours c8 Delay between heaters activation and between supply fan speed variation Establishes the delay between the activation of the heaters in case there is a full load start up to reduce starting currents Such period represents also the delay of activation of the three speeds of the supply fan 7 2 4 Fans F parameters F1 Supply fan start up delay Establishes the delay between the activation of the actuators and that of the supply fan to allow the coils to reach the proper temperature before letting the air circulate across F2 Supply fan shut down delay Establishes the delay between
53. egral type regulation must be added to proportional regulation available as standard Integral type regulation acts on the variation of the point of equilibrium from the set point aiming to reduce this to zero The integral time must be set a typical value for this parameter recommended as an initial setting is 600 seconds 10 minutes The integral error is not calculated at all points of regulation but rather only when the measurement is located in the zone identified by the differential plus 10 Outside of this zone proportional regulation only is performed Once PI regulation is activated the control increases the integral error which is added to the proportional error in every instant this means that the instrument is constantly acting to reduce the total error being accumulated with the result that the point of equilibrium is continuously being brought nearer to the required set point 5 2 3 Split operation The machine model H1 14 allows the management of split type units that is single compressor heat pump with the possibility to manage a three speed supply fan in the internal exchanger The ability to modify through ventilation the overall capacity 0 100 of a single compressor based unit has led to the development of temperature control which is different from the one available on the other selectable machine models parameter H0 Given the set point and the differential the following control logic has been preferred considered
54. eh seduces a dii i AE EE Loto A as ohana 4 29 5 6 Digital inputs 11533 5 7 SUPELVISOT c ii 33 6 ALARMS AND TROUBLESHOOTING oettrtrrrrrererrre rece sere se seen ere nen ene ceca seen ee nes nen eee enza nin eee ein ene cecina enenere nio een een eenesneneesneneeneeneene 35 6 1 Resetting the alarms sc iodio ae ao LR ara ii 35 6 1 1 Muting the buzzer s 6 1 2 Automaatio Tese tinie CI enri E E RE ca dos EE AEE E EEEE ESEE EAE oz ies RE O NEEE E E i aT 35 6 1 3 Manual resettrsa curi ia LAI ARIAL aaa ems 6 2 Description of the alarms RIVIVE 7 1 List of parameters s 7 1 1 Table Of parameters nenret OA A el aR Ge Set AG OG i aaa 39 7 2 Description of the parameters ccccs ccscossecthcssdescuscseeceucentecenceasessdsoeuecebecssacstcendensesedcasdncebece dacu sentescddvesesedseeuecesces sadetcesdescbetesecebdeesd 42 7 2 1 Probe set up S parameters 42 TZ Regulation set up R parameters i 42 7 2 3 Compressor and heater activity c parameters 1 44 7 2 4 Fans F parameters 1 44 7 2 5 Defrost d parameters 45 7 2 6 Alarms P parameters 46 ede General machine configuration parameters H parameters 7 2 8 pLAN communication L parameters si LE DIVISI CIA 9 TECHNICAL SPECIFICATIONS scscsscsssssssscssscsscsscsscnsssscsssssssssssssenssscessesenssssessnssesee
55. emp in cooling duration of external pre ventilation external fan off temp in Heat pump en external fan restart temp in Heat pump supply fan delay after defrost supply fan inactivity time beyond which the anti stratification procedure is anti stratification inactivity time a activated v start defrost temperature lt lt lt lt z lt lt lt cia Im Ce Ce WO delay between 2 defrost requests 7 calculated between the end of one cycle and the start of the next support heaters in defrost 0 NO 1 YES stop comp before and after defrost d9 0 or d10 0 function disabled Comp start delay after valve switching d9 0 or d10 0 function disabled forced defrost temperature if Toursine lt dl1 a defrost is performed even if d7 has not elapsed variation of d7 for intelligent defrost intelligent defrost variation of the interval between defrosts 0 disabled manual defrost d 1 force defrost after the which the parameter is set to zero lt lt lt Q P ALARMS type of alarm from digital input ID3 igital i 0 signal only 1 serious alarm high temperature alarm threshold low temperature alarm threshold 3 id ala P i P 0 disabled 1 14 active for 1 14 min 15 always active 1 2 O O O O delay in alarm from input ID3 U s delay in the activation of the alarm after the opening of ID3 Carel code 030220306 rel 2 1 dated 23 11 07 40 Aria
56. en the alarm message E FL filter alarm is activated The alarm is reset automatically when its cause is removed REM Remote alarm from pLAN This is used as a general alarm signal coming from the Carel pLAN local network via the address variable 160 the buzzer and the alarm message REM are activated If parameter P2 0 there are no other effects if P2 1 serious alarm all outputs are de energized and the alarm relay is activated The alarm is reset automatically when its cause is removed if parameter P2 0 If parameter P2 1 serious alarm after the cause that generated the alarm is removed the RESUME button must be pressed for more than 3 seconds EE EEPROM alarm Signals a read and or write error in the non volatile internal memory EEPROM thus highlighting a problem in the storage of the parameters If this occurs try switching the controller off and on again If the problem persists please contact the local service E SR Terminal communication error Signals an error in the serial communication between the terminal and the power board the terminal does not receive the data The alarm message E SR is displayed the buzzer is activated and all outputs are de energized The LED on the power board blinks 3 times normally once in 3 seconds The alarm is reset automatically that is when communication is established again If the alarm occurs check the two lead serial connection between the terminal and the power board E ST
57. erature alarm When the temperature measured by probe BI rises above the value specified by the parameter P3 for a period longer than parameter P5 the buzzer and the high temperature alarm message HI T are activated The alarm relay is not energized LO T Low temperature alarm When the temperature measured by probe B1 falls below the value specified by parameter P4 for a period longer than parameter P5 the buzzer and the low temperature alarm signal LO T are activated The alarm relay is not energized E ID Alarm from digital input The unit is able to detect external alarms through digital input ID3 When this is detected as being open the system waits for the delay time P6 then the buzzer and the alarm message E ID are activated If parameter P2 0 non serious alarm there are no other effects if P2 1 serious alarm the alarm relay is energized and there are two types of reaction if digital input ID1 is connected to the fan thermal cut off E ID switches off the outputs but not the fan otherwise it switches off the outputs and the fan When considered to be a non serious alarm P2 0 Aria resets automatically when the cause is no longer valid If P2 1 serious alarm and again the cause that generated the alarm is removed the RESUME button must be pressed for more than 3 seconds manual reset E FL Filter alarm The unit is able to detect a possible filter alarm through digital input ID1 if H3 2 When this is detected as being op
58. erature before being ventilated and one to stop it parameter F2 still after the actuators to remove the energy from the exchangers and optimise the system After a certain operating period of the supply fan set by parameter F4 the replace supply fan filter message is displayed Fan Comfort management With the parameter F5 2 the fan remains always ON with comfort setpoint and works automatically that is to say in accordance with the devices with the night time setpoint and unoccupied setpoint when Aria is OFF it is OFF This is a normal management in some worldwide countries Anti stratification To avoid the stratification of the air and the consequent risk of having different temperature zones in the same environment it may be useful to activate the supply fan after a maximum inactivity time In fact if the fan is operating in Auto mode it must start together with the devices yet in particularly stable environments where the temperature varies slowly the devices may also remain off for an extended period and as a consequence the fan is not started The anti stratification function works based on two parameters a maximum fan inactivity time F7 calculated only when the unit is on and the forced start up time F8 Setting one of the two parameters to zero automatically disables anti stratification Management of the Fan on the external heat exchanger By selecting parameter H2 2 it is possible to use the OP output to control one e
59. erature differential but if the ambient temperature increases or decreases to a value of 2 R3 above or below the set point the compressors will start External Temperature 100 Free heating Free cooling 100 Compressors Damper Damper Compressors Ambient temp R3 R3 R3 R3 Setpoint To prevent the introduction of outside air when the temperature differs too much from the ambient temperature there is a maximum value for the difference between the two that if exceeded disables the free cooling and free heating functions parameter R29 the functions are reset when the outside temperature is at least 2 C within the limit R29 N B For the correct use of the external probe see the ph 5 2 8 Using probes B2 and B3 5 2 8 Using probes B2 and B3 Three probes can be connected to ARIA two NTC temperature probes B1 and B3 and one active humidity or temperature probe B2 The first NTC probe B1 is designed to measure the ambient air temperature The use of probes B2 and B3 changes automatically according to the functions chosen ACTIVE DEFROSTS d1 1 ON UNIT PDC AND OR ACTIVE CONDENSATION F7 different from 0 Probe B3 is used for the defrost function and or to manage the condensation Probe B2 is used to measure the humidity if S1 2 Compensation Free cooling and Free heating can not be enabled Probe B2 can be used as the outside temperature measurement if S1 1 in this case the Compensation Free cooling and Free
60. erminal 2 4 Pool environments 25 Heat pump Energy Savine iz lio a LAI RI L ALL LALA Li Lia 2 6 Split cooling only r are ide 8 3 INSTALLATION oie iisscsccsscd cscceisesesenscacecsctsnsessasseheedeasosssbasdecousshongesescadscsscnaasesvessisensssscceosscosensdsedesepeseessonsoscasensssroseutshsacessscsdsenasoassapeesessete 3 1 Terminal itistallationi c gioia bora dll aria 3 2 Connection diagrams for stand alone applications ie 3 3 Installation of the relay power board STAND ALONE system and multi zone power board 10 3 4 Connection diagrams for zone control applications estt 11 4 USER INTEREACE 5 iccacniessssoriscnsessovessocusonssonsncsoansosessansosnessevansesoeassonsessbousonencessdasnonsosonvascasassdbsesecnsessbocnscesseneosssonsesenssaovensosossenonswasnoesios 12 4 1 Meaning of thesymbols on tlie display s crinale ea Lacie aLaaa anioni 12 4 2 Description of the button meaning ss 4 2 1 Frontand Side buttons soli ili iL Asi ein ia Nahata Ladi tbe es 4 2 2 DICI ZIA E O PI O RIEN 4 2 2 1 F Button and Button v hs 4 2 3 Selecting the machine s operating mode MODE button 4 2 3 1 Selects the supply fan operating mode FAN button stand alone version 0nly ii 13 4 2 4 Setting the temperature and humidity set points i 14 4 2 4 1 Setting the temperature set point category SET button
61. eshold parameter d3 for a minimum time parameter d5 and brings about the immediate shut down of the external and supply fan and the inversion of the reverse cycle valve the compressors remain on If enabled by parameter d8 the auxiliary heaters are also activated in this case the internal fan remains on The end of the defrost may be based on time parameter d2 0 or determined by the return of the temperature parameter d2 1 of the evaporator above a certain threshold parameter d4 or by the opening of digital input ID3 parameter d2 2 in any case it must end within a maximum time period parameter d6 The minimum interval between two defrost cycles is set by parameter d7 5 2 4 1 Forced defrost due to low outside temperature If the temperature of the condenser probe B3 falls below a certain temperature value d11 even if the minimum time between two defrosts has not elapsed d7 a defrost is performed in any case At the end of the defrost the time d7 restarts The program may not perform more than one forced defrost at a time and in fact after having ended the first it waits for the end of the time between two defrosts even if the outside temperature B3 is lower than d11 Note that the forced defrost is valid if the start temperature d11 is lower than the normal setting d3 5 2 4 2 Manual defrost Parameter d13 can be used to activate a manual defrost if the unit is operating in PdC mode The defrost can be ended by using parame
62. he one set by parameter L4 10 During normal operation when temperature regulation is requested the control opens and closes the damper with a minimum variation of 5 from the total excursion time If the damper is required to close to more than 90 of total closure the control in this case first closes the damper completely and then returns to the required value The same is true for opening These actions as per the total closing of the damper at instrument start up allow the control to precisely calculate the degree of opening of the damper at each moment even if there is no direct feedback from the damper to the control Finally when the control is OFF it completely closes the damper once again within the set excursion time 10 5 4 Pool environment management Aria is also ideal for the control of pool environments where it is important to control the pool water temperature and the humidity and temperature of the surrounding environment A special configuration has been designed for this purpose H1 17 where the relay manages the heaters and a pump for the water and compressors heaters and fans for the air The probes are used to measure the water temperature B3 and the ambient temperature B1 and humidity B2 Optional water heaters can be managed by the optional relay enabling them by setting parameter H2 3 The following diagram summarises the management of the devices based on the water temperature and the ambient humidity the
63. idification in IAN progress OR i i Dehumidification not active 1 Heating after stop Ws Ss Ii a aerial 1 _Gehumidification EA mS A Ambient temp Night time or R3 Night time or Unoccupied Set Unoccupied Stop dehumidification Temp Comfort Set 5 2 6 Automatic set point compensation The temperature set point can be modified automatically based on the outside temperature value If the outside temperature reaches values that may affect the operation of the unit for example temperatures above 40 degrees in summer the set point is worsened that is increased in this way the level of comfort is decreased yet this has a positive effect on energy savings and the life of the machine Another use of compensation is to maintain a maximum difference between the ambient temperature and the outside temperature to prevent for example in shops large differences between the outside and the inside and consequent irritation to those who enter and exit The function is described in the following diagram Compensation COOLING COMPENSATION OUTSIDE TEMP R24 2 R26 3 C HEATING COMPENSATION 22 C Setpoint 25 C Cooling compensation starts when the outside temperature is greater than Set point R3 4 C Following the example in the diagram with Set 25 0 C and R3 3 0 C the compensation starts when the outside temperature is greater than 31 0 C cooling compensation and less than 18 0 C heating compensation The intensi
64. ifferent from the one on the board that is 24 Vac Vdce In case the digital inputs are supplied by direct current the IDCOM terminal must be connected to the positive pole ID1 ID2 and ID3 to the negative one GND su ID COM O O IDI di o 0 IDI O ID2 oO ID2 OO ID3 oO ID3 Fig 3 3 1 Fig 3 3 2 For correct installation the following warnings must be heeded e always disconnect the power supply before performing any operations on the board during assembly maintenance or replacement e the cables for connection to the power board must be kept separate from other cables using an individual raceway and possibly shielded cables In such a case connect the cable braid to terminal GO reference for the 24Vac power supply leave the other side of the braid free The maximum length allowed is 150m according to the section of the cable as per table 3 1 1 e when making the connection to the power board special attention must be paid to the polarity the T pin on the terminal side must be connected to the T pin on the power board similarly for the T pin however in case the cables are connected in the opposite order the instrument will not be damaged For the multi zone power board TAZONE0000 follow the same correct installation procedure for the relay power board Carel code 030220306 rel 2 1 dated 23 11 07 Aria 3 4 Connection diagrams for zone control applications
65. index of protection IP30 Tab 9 1 1 Avoid installation near power cables using shielded cables if possible In such a case connect the shield to terminal GO reference for the power supply leaving the other end free 9 2 Relay power board for stand alone units power supply 24Vac 10 15 at 50 60Hz protected by external 1 AT fuse minimum electrical power required VA connection to terminal using a bipolar cable with cross section from 0 5 to 1 5mm depending on the length of the connection from 0 to 50m min 0 5mm from 50 to 150m min 1mm analogue inputs 1 B3 for NTC Carel probe field of measurement 40 C 80 C resolution 0 5 C 1 F accuracy 1 C 2 F between 0 C and 50 C 1 5 C 3 F between 40 C and 0 C and between 50 C and 80 C digital outputs e 5 or 7 depending on the relay model 2 of which with switching contacts and the others with contacts normally open e all contacts are protected by a 250Vac varistor relay output power 2500VA 10A resistive at 250Vac digital inputs 3 optically isolated 24Vac Vdc inputs the 24Vac Vdc power supply of the inputs must be different from that of the board to allow true optical isolation TOT65 C 7 90 RH non condensing Tab 9 2 1 Avoid installation near power cables using shielded cables if possible In such a case connect the shield to terminal GO reference for the power supply leaving the other end free Carel code 030220306 rel 2 1 d
66. ing P10 0 the alarm is disabled and the opening of the digital input has no effect Carel code 030220306 rel 2 1 dated 23 11 07 46 Aria P11 Low pressure alarm delay in defrost This represents the delay in the acquisition of the low pressure alarm LO P on digital input no 2 if the unit is operating in defrost mode Setting P11 0 the alarm is disabled and the opening of the digital input has no effect P12 Type of low pressure alarm reset The low pressure alarm LO P can reset automatically manually or a combination of both When P12 0 the reset is automatic that is after the alarm goes off when the digital input closes again the alarm automatically disappears including the signal on the display When P12 1 the reset is manual that is after the digital input has closed again the Resume button needs to be pressed for 3 seconds for the display of the alarm signal to disappear When P12 2 5 a number of automatic resets are performed equal to the value of P12 from 2 to 5 within 1 hour from the first alarm if still within 1 hour another alarm occurs it will require manual reset This is a method used to prevent the machine from shutting down after just one alarm allowing the possibility to restart operation After 1 hour from the first alarm the count is set to zero and then starts again from the following LO P alarm signal 7 2 7 General machine configuration parameters H parameters H1 Machine model This parameter a
67. inputs please refer to section Digital inputs HS digital input ID3 If H5 0 the digital input ID3 on the power board is not enabled If H5 1 input ID3 is enabled with the generic alarm function If H5 2 input ID3 is enabled with the function of end defrost control For a description of the digital inputs please refer to section Digital inputs H6 Keypad lock If H6 1 the side buttons for programming the instrument are disabled Only the front buttons and the code protected combination of buttons remain enabled H7 LCD display selection Establishes what is displayed on the field in the top right of the display e H7 0 value read by probe B2 valid only if the probe is present thus with S1 1 or S1 2 e H7 1 value of the current set point e H7 2 value read by probe B3 on the power board for defrost control H8 Set point overriding time Establishes the duration of the temporary modification of the current set point which may be performed using the front buttons in time band operation This duration is shown in place of the clock indication and it is updated every hour If H8 0 the set point can not be overridden H9 Time format 12 24 hours Establishes the time display format If H9 0 the format is 24 hours If H9 1 the format is 12 hours with the AM or PM symbols H10 LCD contrast Allows the contrast of the display to be varied H11 Enable button click Allows the pressing of each button to be followed by the
68. irect sunlight etc e the cables for connection to the power board must be kept separate from other cables using an individual raceway and possibly shielded cables In such a case connect the cable braid to terminal GO reference for the 24Vac power supply leave the other side of the braid free The maximum length allowed is 150m according to the section of the cable as per the table length of connection m minimum cross section mm 0 50 0 5 50 150 Tab 3 1 1 e when making the connection to the power board special attention must be paid to the polarity the T pin on the terminal side must be connected to the T pin on the power board similarly for the T pin however in case the cables are connected in the opposite order the instrument will not be damaged The installation procedure is the following 1 To detach the front panel of the terminal from the rear shell place a flat heat screwdriver in the slot in the centre of the bottom side of the housing and release the locking flap Fig 3 1 1 2 Raise the front panel using a hinge movement using the upper edge of the instrument as the pivot and raising the lower edge Fig 3 1 1 3 To mount the rear shell to the wall place the hole in the centre of the shell over the control cables of the instrument which come out of the wall The placement of the mounting holes has been designed to allow the instrument to be fixed onto standard European flush mounting bo
69. ive to the current temperature set point less the eventual neutral zone Carel code 030220306 rel 2 1 dated 23 11 07 18 Aria Differential Diffeyential HION HI H1 OFF H1 ON H1 OFF 9 temperature 7 temperature i I gt Set point siog Set point a J gno sati Differential et point a l eutral zone Fig 5 2 1 3 Fig 5 2 1 4 The Fig no 5 2 1 3 and 4 show respectively reverse without neutral zone and reverse with neutral zone For the models with 2 regulation outputs in direct operation without Neutral zone Fig 5 2 1 5 the device activates the first output OUT1 when the controlled measurement exceeds the value of set point 1 2 differential the second output is then activated OUT2 when the measurement exceeds the value of set point differential The outputs remain ON until the controlled measurement falls below the value of set point 1 2differential OUT2 goes off and set point OUTI also goes off In reverse operation without Neutral zone Fig 5 2 1 7 the device activates the output OUT when the controlled measurement falls below the value of set point 1 2 differential output OUT is also activated if the measurement falls below the value of set point differential The outputs remain ON until the controlled measurement reaches the value of set point 1 2 differential OUT2 goes off and set point OUTI goes off too Set point C1 C2 ON C1 C2 DFF Cl C2 C1 C2 ON temperature temperatur
70. l R14 Anti freeze Enables the anti freeze function described in paragraph 4 2 4 1 R16 Min humidity set point Establishes the set point minimum limit for humidity regulation R17 Max humidity set point Establishes the set point maximum limit for humidity regulation R18 Compressor rotation If set at 1 it enables compressor rotation to equalize the operating hours see the paragraph on Output management R19 Type of regulation Establishes the type of regulation used to control temperature If R19 0 the control performs proportional regulation if R19 1 the regulation is proportional plus integral Humidity control is performed with proportional regulation only R20 Integral time constant Establishes in the case of integral regulation P I R19 1 the integral time constant R21 Regulation delay Establishes the delay to perform any regulation after powering the controller in order to avoid peaks in current absorption where a large number of Aria units is used R23 Positive compensation slope cooling This coefficient establishes the exact value by which the set point increases for each extra degree in the outside temperature The value is calculated as follows T outside Original Set R3 4 C R23 If T outside lt Original Set R3 4 C there is no compensation when R23 0 there is also no compensation R24 Negative compensation slope heating This coefficient establishes the exact value by which th
71. llows to select the type of machine to be controlled WARNING before modifying parameter H1 the machine should be switched OFF as the outputs will change function For a detailed description please refer to the Application section H2 Programmable output This parameter allows the function of the programmable relay output to be selected This output is indicated by the letters OP in the functions table in the Applications section For a detailed description please refer to the Applications section H3 digital input ID1 If H3 0 digital input ID1 on the power board is not enabled If H3 1 input IDI is enabled and the Heating or Cooling operating mode set by the input itself has priority over that set on the keypad If H3 2 input IDI has the function of non serious alarm input to signal the need of changing the filter open contact clogged filter alarm closed contact no alarm For a description of the digital inputs please refer to section Digital inputs H4 digital input ID2 If H4 0 the ON OFF digital input ID2 on the power board is not enabled If H4 1 input ID2 takes the function of remote ON OFF the opening of the contact unit OFF has priority over the operating mode set on the keypad the unit can operate only when allowed by both the remote and keypad If H4 2 digital input ID2 takes the function of water pump alarm If H4 3 digital input ID2 takes the function of low pressure alarm For a description of the digital
72. ly air At the same time the supply fan is activated to remove the heat produced d9 Compressor stop time before and after defrosts Both at the start and the end of each defrost the compressors can be stopped for the time set by d9 so as to allow the fluids in the refrigerating circuit to stabilise before the valve reverses its status If one of the times d9 or d10 is set to 0 the compressors remain on for the entire defrost process and the valve is reversed with the compressors on d10 Compressor start delay after reversing valve switching in defrosts After the status of the valve has been reversed at the start and the end of the defrosts the compressors start when the time set by d10 has elapsed This is true only if a time has been set for d9 if one of the times d9 or d10 is set to 0 the compressors remain on for the entire defrost process and the valve is reversed with the compressors on d11 Forced defrost temperature This is the temperature value of the external condenser lower than the normal start defrost temperature d3 at which a defrost is performed without respecting the normal waiting time between two defrosts d7 The forced defrost can be performed just once after this the time d7 must elapse even if the outside temperature is still low d12 Intelligent defrost time delta This is the value in minutes that is subtracted from or added to the time between defrosts d7 whenever the necessary conditions are true see par
73. meters SET RESUME buttons when powering the controller These are pressed before switching on the machine and held until the settings have been entered as signalled by the script dEF displayed for 5 seconds This operation allows the automatic setting of all the parameters contained in the Table 7 1 1 at their default value column def of the same table except for the following parameters S1 S2 S3 R8 R14 R18 R27 F7 F8 F9 F10 F11 F12 F13 HI H2 H15 H16 P12 d12 Carel code 030220306 rel 2 1 dated 23 11 07 15 Aria 4 2 6 Using the Hardware key 4 2 6 1 Copying parameters from the removable hardware key to the controller SET buttons when powering Aria or even only button when powering Aria At the start of the operation the script CE appears at the end OK or NO appears according to the result of the data transfer 4 2 6 2 Copying parameters from the controller to the removable hardware key SET v buttons when powering Aria At the start of the operation the script EC appear at the end OK or NO appear according to the result of the data transfer 4 2 7 Real time clock and time bands 4 2 7 1 Setting the time CLOCK button version with built in clock only The value to be modified that is hours minutes and day of the week is selected by pressing CLOCK repeatedly modified using and v and confirmed by pressing CLOCK again Pressing RESUME o
74. minals used must feature the pLAN option codes TAT PWO0 Parameter L6 is used to select between pLAN or RS485 line The communication speed can be set between 1200 baud and 9600 baud using parameter L7 The following table shows the variables that can be sent and received How these are used depends on the type those marked R can be read those marked W can be written and those marked with both symbols can be both modified and read with the same variable When there are no numeric indications or references to other parameters the first value is zero and the successive ones in the list have values in increasing order example OFF AUTO SPD1 SPD2 SPD3 means 0 1 2 3 4 Variables are not described in the following table must not be used Carel code 030220306 rel 2 1 dated 23 11 07 33 Aria DIGITAL VARIABLES R 1 ID1 if enabled ID2 if enabled ID3 if enabled fe es dl reset alarms SS reset hardware SE ae send forced parameters Se O output status set by remote force buzzer control status 0 stand by 1 active remote alarm remote alarm not activated in OFF ID1 from remote ID2 from remote ID3 from remote manual defrost force ON simulates the MODE button 7 15 alarm status 0 no alarm I alarms present ANALOGUE VARIABLES R______________ W fe t T a o O Po probe BA Es ibe BY E a ss 4 current temperature set point current temperature setpoint SCT BRIEFCASE setpoint
75. n Having set AUTO operation when the fan starts the text AUTO also appears next to the fan symbol For details see Output management o ooo Carel code 030220306 rel 2 1 dated 23 11 07 13 Aria 4 2 4 Setting the temperature and humidity set points 4 2 4 1 Setting the temperature set point category SET button There are 3 possible situation available unoccupied comfort night time indicated by the relative symbols as well as the machine OFF limit category e comfort set point indicated by the symbol ab the room is occupied therefore a certain level of comfort is required N e night time set point indicated by the symbol the room is occupied yet a lower level of comfort is required obtained moving the cooling and the heating stages a few degrees away from the comfort set point like having a neutral zone in between This also results in reduced operating noise and energy consumption e unoccupied set point indicated by the symbol ii typically used when the room is not occupied The temperature deviation with respect to the comfort set point accepted is wider than the night time set point as cooling and heating stages are engaged at temperature values much higher and lower than the set point Energy consumption results minimized Pressing the SET button in manual operating mode without clock changes the category currently used by the control In time band operating mode on the other hand the c
76. nput ID3 bit 7 set point category when in time band operating mode L6 Type of protocol and presence of power board Given that the 3 connectors on the rear shell of the Aria terminal Gnd Rx and Tx can be used to connect both the pLAN network to a pCO or pCO and to connect a RS485 serial line to a Carel supervisor L6 is used to specify what is connected L6 0 no protocol L6 1 Carel supervisor protocol L6 2 pLAN protocol L6 3 no protocol L6 can also be used to tell the Aria terminal that the power board is not connected in this case Aria is supplied by an external source so as to prevent the E SR alarm from disabling programming and being always shown on the display L6 4 no protocol and no I O board L6 5 supervisor protocol and no I O board L6 6 pLAN protocol and no I O board L7 Supervisor communication speed Selects the communication speed for the data sent across the RS485 serial line L7 0 1200 baud L7 1 2400 baud L7 2 4800 baud L7 3 9600 baud Carel code 030220306 rel 2 1 dated 23 11 07 49 Aria 8 DIMENSIONS The Figures below provide the dimensions in mm of the terminal and the power board Fig 8 2 and 8 3 4 mode y x T q I DESTRI cleck l F AS LI aute a4 A j J 86 held aria V fan l Y
77. ntegrated into class I and or II devices period of electrical stress across the insulating parts degree of environmental pollution control device designed to be supplied to manufacturers installers and maintenance operators category of resistance to heat and fire category D protection against voltage surges category 1 software class and structure control device with class A software Tab 10 4 2 9 5 Protection against electric shock The system made up of power board plus terminal constitutes a control device to be integrated as part of a machine The class of protection against electrical shock thus depends on how the control device is integrated into the machine by its manufacturer The power board features extra insulation between the low voltage parts and the area of connection of the digital outputs as well as primary insulation between the various digital output connections A Class II machine can thus be configured using a Class II safety transformer as the power supply to guarantee the required protection against electrical shock Disconnect the power supply before performing operations on the board during assembly maintenance and replacement Protection against short circuits due to defective wiring must be guaranteed by the manufacturer of the machinery into which the device is integrated The control is made up of both plastic and metal parts All these parts must be disposed of according to the local standards in force
78. odes allowed AUTO and OFF 3 The FAN button has no function 5 3 1 Regulation algorithm Temperature regulation There are two possible modes Automatic mode AUTO this is normal way The essential information for the operation of the system is the operating mode heating or cooling that the pCO aims to maintain according to its algorithm Until the Aria receives this value the pCO operating set point it does not perform any type of regulation This information may also be provided by the digital input ID1 Heating Cooling hardware selection to allow the use of Aria wherever pLAN network is not present The pCO usually operates with two set points one for cooling and one for heating These are the limits within which the set point may vary for each zone as temperatures outside of the values can not be reached It is not important for the regulation performed by the Aria unit to know how the pCO chooses its operating set point based on digital input or by evaluating the requests from the various zone it is important on the other hand for it to know what point it has chosen as it is based on the difference between the ambient temperature and the pCO set point that the terminal decides whether to modulate or close the dampers The regulation performed is proportional type with a lateral band For example during cooling when the temperature exceeds the set point the differential Aria opens the damper completely
79. of the ambient temperature in respect to the set point e FAN ventilation only you select the operating mode of the supply fan among 1 2 3 AUTO and OFF by means of the FAN button If you press the MODE button in the time band operating mode it displays the current operating mode for 5 seconds indicated by the corresponding blinking writing in the place of the clock In the manual operating mode instead the operating mode is always shown By pressing the button repeatedly the possible operating modes for the machine selected alternates Lol I AS aute Fig 4 2 4 1 The operating mode selected is acknowledged 5 seconds after setting when the related symbol stops blinking 4 2 3 1 Selects the supply fan operating mode FAN button stand alone version only Depending on the number of the supply fan speeds available and the machine operating mode the FAN button scrolls through the following modes OFF supply fan off available only when in simple ventilation 1 supply fan constantly at speed 1 2 supply fan constantly at speed 2 3 supply fan constantly at speed 3 o AUTO supply fan switched on and off along with the actuators When selected speed 1 2 and 3 the symbol corresponding to the selected speed lights up for 5 seconds Afterwards the number corresponding to the actual operating speed lights up it may temporary differs from the one selected due to parameter c8 delay when varying the speed rates of the supply fa
80. on the matter of material disposal Carel code 030220306 rel 2 1 dated 23 11 07 52 Aria 2 SOFTWARE UPDATING 2 1 Notes for the release 3 4 and the following ones The software release 3 4 in comparison with the previous 2 0 rel includes the following changes in the following paragraphs of the manual 2 1 2 4 2 5 2 6 applications 4 2 6 4 2 7 4 2 8 4 user interface 5 2 4 5 2 5 5 2 6 5 2 7 5 2 8 5 2 9 5 3 2 5 4 operation 5 5 1 pLAN 5 6 digital inputs 5 7 supervisor 6 2 alarms 7 1 1 parameters 7 2 description of the parameters Software release 3 6 includes the following change exclusion of time bands by setting parameter H13 5 or 6 Programming with hardware key e With a release 2 0 programmed key when programming 3 4 version the parameters which did not exist before are not modified but they keep their current value e With a release 3 4 programmed key it is not possible to copy the program in the previous Aria version 2 0 Carel reserves the right to modify or change its products without prior notice Carel code 030220306 rel 2 1 dated 23 11 07 53 CARE Technology amp Evolution CAREL srl Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 http www carel com e mail carel carel com Agency cod 030220306 rel 2 1 dated 23 11 07
81. onnection to the controlled devices such as valves compressors fans Its main features are e an analogue input for measuring the temperature of the external heat exchanger of a heat pump unit in order to control the defrost cycles and condenser fan for units without heat pump or alternatively by excluding the defrosts it may be used as the outside temperature measurement to control free cooling free heating and temperature set point compensation see paragraph 5 2 8 Using probes B2 and B3 e Sor 7 digital outputs relays according to the models which allow the instrument to be used in a wide range of applications see H1 parameter e 3 multifunctional digital inputs see 5 6 5 8 s 8 2 8 a S s 3 5 8 me ae a E MB un ae Fis Cru Cas Crus ED Cre Y FLI9 083 Dili Lien R121 g R152 C141 L J onto FLI95 The following areas of connection can be identified on the board e terminals G and GO for power supply 24Vac e terminals T and T for connection to the terminal e terminals ID COM ID1 ID2 and ID3 for connection of the digital inputs e terminals B3 and GND for connection of the NTC temperature probe on the external heat exchanger or in the outside air see paragraph 5 2 8 Using probes B2 and B3
82. or the humidity set point R16 100 R18 enable compressor rotation NO NORMAL C C Cc G Cc minimum compressor off time 0 900 54 55 H2 function of the programmable output 0 1 2 3 4 5 0 humidifier 1 alarm 2 external fan 3 pool heater 4 operatine mode signal 5 Comfort mode signal function of digital input ID1 0 1 2 3 0 absent 1 remote cooling heating selection 2 alarm filter 3 fan thermal cut off alarm with th F signal function of digital input ID2 0 1 2 3 0 absent 1 remote ON OFF 2 water pump alarm with P AL signal 3 low pressare alarm with LO P signal function of digital input ID3 0 1 2 3 0 absent 1 general alarm 2 end defrost 3 remote ON OFF 5 62 63 64 65 H11 enable button click 0 1 select source for probe B1 0 1 0 internal 1 external minimum time between starts of two compressors 0 150 3 3 4 3 1 6 8 1 2 5 6 7 8 4 8 9 5 2 5 6 7 4 4 5 ET 6 humidity differential R16 R17 7 1 2 3 4 gt 8 1 5 6 1 type of probe B2 0 1 2 0 Absent 1 0 1V temperature 2 0 1 V humidity R19 type of control P P I 0 P 1 P I S S digital filter for input B1 1 15 S S 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 pese dl fi SS ir i 9 a le se i RE I 13 4 e
83. pply fan is off dt 237 eee Tamb 1 supply fan always on at speed 1 Setpoint 2 supply fan always on at speed 2 3 supply fan always on at speed 3 Fig 5 2 6 1 auto not available Carel code 030220306 rel 2 1 dated 23 11 07 25 Aria HEAT COOL AUTO mode temperature and humidity control activated models with supply fan at single speed OFF not available 1 supply fan always on 2 3 not available auto the supply fan follows the operation of the actuators switching on and off together with these if set by parameter F5 In this mode you can also select a delay to start the supply fan after the actuators parameter F1 to allow the exchanger to reach the proper temperature before being ventilated and one to stop it parameter F2 still after the actuators to remove the energy from the exchangers and optimise the system models with supply fan provided with three speed rates split unit OFF not available 1 supply fan always on at speed 1 2 supply fan always on at speed 2 3 supply fan always on at speed 3 auto the supply fan follows the operation of the actuators and modulates its speed according to the variation of the ambient temperature from the current set point below the set point the supply fan either switches off or remains on at the minimum speed according to parameter F5 In this mode you can also select a delay to start the supply fan after the actuators parameter F1 to allow the exchanger to reach the proper temp
84. r 2 maintenance alarm Compressor 2 has exceeded the no of operating hours specified by parameter c7 HIH highambienthumidity alam The humidity measured by probe B2 is below the value ofparameterP7 i Table 6 2 1 Carel code 030220306 rel 2 1 dated 23 11 07 35 Aria HR 1 HR 2 Compressor 1 and 2 maintenance alarm When the number of operating hours of a compressor exceeds the maintenance threshold set by parameter c7 default c7 0 and thus this signal is disabled the maintenance required message HR 1 or HR 2 is visualised The buzzer and the alarm relay are not energized To reset this alarm the operating hour counter must be set to zero enter parameter programming mode DIRECT by pressing the SET and HOLD buttons display the hour counter in question parameter c5 or c6 press once SET button to enter the field and then the front buttons at the same time HR F Supply fan maintenance alarm When the number of operating hours of the supply fan exceeds the maintenance threshold set by parameter F4 default F4 0 and thus this signal is disabled the maintenance required message HR F is visualised The buzzer and the alarm relay are not energized To reset this alarm the operating hour counter must be set to zero enter parameter programming mode by pressing the SET and HOLD buttons display the hour counter in question parameter F3 press one SET button to enter the field and then the front buttons at the same time HI T High temp
85. r after 60 seconds of inactivity normal mode is resumed and the modifications entered are lost 4 2 7 2 Time bands The time bands are the intervals of time into which a 24 hour day is divided in each band the operating mode of the unit can be 2 selected between al p W O There are 6 possible time bands for each of the 7 days of the week When programming the time bands these are indicated respectively by the letters t1 t2 t3 t4 t5 t6 on the small display in the top right When selecting one of the symbols that is comfort night time or unoccupied for a time band the unit will maintain the set temperature value throughout the interval of time in question If selecting the Standby symbol for a time band the unit will switch off throughout the interval of time in question If a set point category symbol comfort night time unoccupied has then been selected for the following time band the unit will automatically switch back on When a Standby time band is active if the unit has not already been switched off using the Mode button the Standby symbol will blink Digital input ID3 if used as a serious alarm does not have any effect if Aria is OFF either due to the time bands or using the Mode button The unit can be temporarily activated during a Standby time band by pressing the Hold button see par 4 2 8 1 Pressing Resume returns to the Standby time band see par 4 2 8 2 4 2 7 3 Setting the time bands CLOCK
86. r for input B3 so u 1 1 a filter for analogue input stabilisation of the measurement e R CONTROL pool temperature Set Point TEA Di po i the value that the control of the water temperature is based on y n 10 0 3 0 temperature differential 190 I 5 Ct Humidity set point R16 R17 1 5 the current value that humidity control is based on humidity differential 20 fd e enable dehumidification 1 EAH 0 NO I YES relative Set Point for support heaters EA AEA relates to the current Set Point La i 7 22 0 5 7 support heaters present compressors with support heaters le 0 NO 1 YES sa minimum limit for temperature Set Point 0 0 50 0 50 0 I 1 1 start devices if Taun lt P4 ei z minimum limit for Humidity set point c je Gi alc a Q w Sju wr Nols ojs o DO a FIa n 7 glalx Ee aluls nlzi co G E 9 vo wWielLo N No sojNo Carel code 030220306 rel 2 1 dated 23 11 07 39 Aria parameter code type min max unit var def meaning visibility maximum limit for Humidity set point t ed ot i 0 proportional 1 proportional integral 1 o delay in the activation of the control on start up 05 20 K 0 disabled optimum value 2 K 0 disabled optimum value 4 maximum value to decrease the Set Point by for compensation i sil 0 disabled 1 free cooling without compressors 2 free heating withou
87. r to save energy it may be useful to exclude dehumidification during the night or in periods when the environment being climate controlled is unoccupied To do this use parameter H15 If H15 0 with the Night time or Unoccupied set point active dehumidification is not performed If H15 1 dehumidification is performed 5 2 5 2 Dehumidification stop temperature Dehumidification is in essence a cooling function that may lower the ambient temperature To prevent the temperature from decreasing too much a minimum temperature value is used to disable dehumidification This limit is Comfort Set Differential 0 5 C below this temperature value dehumidification is deactivated until the temperature reaches the Comfort set point The support heaters can be activated during dehumidification to increase the temperature for all types of active set point Comfort Night time or Unoccupied with dehumidification enabled the heaters are activated immediately below the Comfort set point in order to keep the temperature high The diagram below refers to the situation with the Night time or Unoccupied set point active and dehumidification active The white steps refer to the normal activation thresholds of the heaters based on temperature away from the set point due to the dead band while the grey steps indicate the activation of the heaters in the special case of dehumidification Carel code 030220306 rel 2 1 dated 23 11 07 22 Aria retta 7 iDehum
88. rameters where there is only 0 1 0 means NO while 1 YES i e enabled or not enabled function DIGITAL READ MDI ifenabled VES p72 D2 ifenabled VES p73 D3 ifenabled VES 4 Valamresto ____L DO 7 fades S pT fsend forced parameters o o pT fouitput status setby remote __________L 8 DA fromremote _________ L O p82 Fromremote S e 183 DB fromremote ___________ L lO 384 _____ maldetot ____________L_ pS force ON simulates the MODE button YES 186 alarm status 0 no alarm I alarms present d ANALOG RX READ WRITE AUX INDICES 138 probe BA VES p39 probe BZ ES p40 probe BS VES 141 current temperature set point temperature set point in Manual without clock 142 JUNOCCUPIED setpoint UNOCCUPIED setpoint o O 143 COMFORT set point COMFORT setpoint O o O 144 NIGHT TIME setpoint NIGHT TIME setpoint _ i O 145 temperature differential temperature differential R3 146 remote setpoint remote set point from pCO orpCO T pa remote probe BI if bit O 1 variable LS o promote probe B2 if bit I variable 15 pt fremote probe B3 Gif bit 2 1 variable LS _____________ _ 150 effective temperature set pointR SP 151 Output percentage 010V S _ Carel code 030220306 rel 2 1 dated 23 11 07 29 Aria INTEGER output logic status Bit meaning 0 Compressor 1 1 Compressor 2 2 Valve 3 Heater 1 4 Heater 2 5 Heater 3 6 Fan spe
89. rminal ARIA measures the temperature and the humidity of the zone sends the data via pLAN to the centralized machine s controller pCO or pCO2 which depending on the information received from the other zone terminals up to a maximum of 30 decides the operating logic and thus the temperature and humidity of the air to be introduced into the duct Each terminal is connected to triac power board code TAZONE0000 which manages the local zone damper with floating control in order to maintain the required ambient conditions WARNING before modifying parameter H1 and thus changing the type of application the machine should be switched OFF by keypad as the outputs will change their function immediately after each change of HI 2 1 Stand alone applications The list below describes the value of parameter H1 and the function of each relay for each application using the following abbreviations e CI C2 relay for the control of cooling stages no 1 and no 2 V relay for the control of the reverse cycle valve RI R2 R3 relay for the control of heating stages no 1 2 and 3 RI R2 R3 relay for the control of heating stages no 1 2 and 3 Rlaux R2aux relay for the control of auxiliary heater 1 auxiliary heater 2 F1 F2 F3 relay for the control of the supply fan at speed 1 speed 2 speed 3 OP programmable output via parameter H2 NU Not Used ALL relay for alarm signalling ES Free cooling or Free heating damper opening relay
90. rsonnel who are aware of the necessary precautions Disconnect the machine from the mains power supply before accessing any internal parts The local safety standards in force must be applied in all cases Disposal of the instrument The controller is made up of metal and plastic components To dispose all of these components refer to the environment protection laws valid in your own country Carel code 030220306 rel 2 1 dated 23 11 07 3 Aria INTRODUCTION Aria is an electronic controller for the management of direct expansion air conditioning developed by Carel for the home and commercial markets It features a room terminal which communicates with a power board installed on the air conditioning unit itself With its accurately designed appearance it is ideal for the sector it is used in Another important feature of the product is its ease of use with a large LCD display and a highly intuitive user interface Furthermore unlike other existing products on the market the connection of the actuators is handled by an electronic board located directly on the machine s electrical panel thus avoiding the need to lay large quantities of cables to the control itself The serial communication allows cabling reduction between the terminal and the power board to just 2 wires The instrument can manage both conventional units and heat pumps with up to a 3 heating and 2 cooling stages in a single refrigeration circuit its operational flexibilit
91. s F7 1 together with the compressors in heating based on the external heater temp in cooling F7 2 together with the compressors in cooling based on the outside temp in heating F7 3 always based on the external heater temperature F8 External fan stop temperature in Cooling Valid when F7 1 or 3 This is the temperature value on the external heater below which the external fan is stopped F9 External fan start temperature in Cooling Valid when F7 1 or 3 This is the temperature value on the external heater above which the external fan is started F10 Minimum external fan On time in Cooling Valid when F7 1 or 3 In cooling when the compressors start the external fan remains on for the time set by F10 even if the external heater temperature is less than F9 once the time F10 has elapsed the fan must respect parameters F8 and F9 F11 External fan stop temperature in Heating Valid when F7 2 or 3 This is the temperature value on the external heater above which the external fan is stopped F12 External fan start temperature in Heating Valid when F7 2 or 3 This is the temperature value on the external heater below which the external fan is started F13 Fan delay after defrosts If the defrosts do not feature the use of support heaters d8 0 or alternatively the unit is not fitted with support heaters the supply fan remains off during defrosts At the end of the defrosts when the compressors are started again to satisfy the ambient hea
92. se are the two most important measurements WARNING the ambient temperature probe may at any moment activate the ambient heating and cooling devices so as to maintain the Comfort Night time or Unoccupied temperature set point DERUMIMIFICSLON DEHUMIDIFICATION IF REQUESTED BY THE HUMIDITY PROBE WATER HEATER NO 2 OPT WATER HEATER NO 1 R14 Water Temp R2 1 If Pool Set Pool Diff lt T pool lt Pool Set activation of ambient air dehumidification fan compressors and possibly post heating and pool heating the hot gas is sent to the pool s heater The humidity probe is not considered 2 If T pool lt Pool Set Pool Diff activation of ambient air dehumidification and pool heating with two heaters The humidity probe is not considered 3 If T pool gt Pool Set the humidity probe is considered if dehumidification is not requested all the devices are deactivated with high humidity activation of dehumidification fan compressors and possibly post heating The priorities are 1 Ambient air dehumidification 2 Heating water 3 Ambient air conditioning The parameters used to manage the water set point and differential are R2 and R14 PUMP MANAGEMENT The pump usually operates in accordance with the devices that is with the water heaters if no heater is active the pump remains off The pump can also operate in continuous mode and in this case the choices are only in Unoccupied mode or in all
93. secsesseasssssssessesecssesesessesessessesseseoseessesoseoss 9 1 Terminal board is Grill elio lalla lola sia 9 2 Relay power board for stand alone Units i 9 3 Triac power board for multi zone applications 9 4 Common characteristics for components indicated above i 52 9 5 Protection against electric SHOCK 4 cescces cchesscessvseeseccbcossecsesincessestdcocsecebcebseculcendeschusedecebdeetacebcedsestescdcvedesedsceuecsscen deduteetsescbeesecebeee s 52 10 SOFTWARE UPDATING sn 53 10 1 Notes for the release 3 4 and the following ONEs 53 Aria IMPORTANT WARNINGS BEFORE INSTALLING OR HANDLING THE APPLIANCE PLEASE CAREFULLY READ AND FOLLOW THE INSTRUCTIONS AND SAFETY STANDARDS DESCRIBED IN THIS MANUAL This appliance has been developed to operate risk free and for a specific purpose as long as e itis installed operated and maintained according to the instructions contained in this manual e the environmental conditions and the voltage of the power supply correspond to those specified All other uses and modifications made to the device which are not authorised by the manufacturer are considered incorrect Liability for injury or damage caused by the incorrect use of the device lies exclusively with the user Please note that the machine contains powered electrical devices and all service and maintenance operations must be performed by specialist and qualified pe
94. set jumper J1 on the terminal to position 1 2 S9 Digital input filter probe B2 Sets the coefficient used in the digital filtering of the value measured and the maximum variation which can be measured by the probes on the terminal in a regulation program cycle High values for this parameter allow the elimination of any noise at the analogue inputs yet diminish the reaction time of the measurement S10 Digital input filter probe B3 Sets the coefficient used in the digital filtering of the value measured and the maximum variation which can be measured by the probes on the terminal in a regulation program cycle High values for this parameter allow the elimination of any noise at the analogue inputs yet diminish the reaction time of the measurement 7 2 2 Regulation set up R parameters R1 Pool water temperature set point Allows the current temperature set point to be set to control the temperature of the pool water with H1 17 The minimum variation is of 0 5 C or 1 F according to S7 parameter R2 Pool water temperature differential Allows the differential to be set to control the temperature of the pool water with H1 17 The minimum variation is 0 5 C or 1 F depending on parameter S7 R3 Differential Allows the temperature differential to be set to control temperature see chapter no 5 The minimum variation is of 0 5 C or 1 F according to S7 parameter R4 Neutral zone Allows the temperature neutral zone to
95. site logic 70 71 72 73 74 75 76 77 78 79 81 82 83 oo n P12 type of reset for low pressure alarm on ID2 0 1 2 3 4 5 0 automatic 1 manual 2 5 number of automatic resets within hour from the first alarm then manual reset 93 S9 digital filter for input B2 1 15 94 S10 digital filter for input B3 1 15 95 d9 pause after compressors stop in defrost 0 180 d10 pause after reversing of the cycle in defrost 0 180 F10 external pre ventilation time for condensation control 0 180 enable condensation control in HEAT and COOL mode 0 1 2 3 0 disabled 1 enabled in Cooling 2 enabled in Heating 3 always enabled 100 101 87 88 91 O N 102 103 104 105 106 F14 supply fan inactivity time to activate anti stratification 0 999 107 108 109 R29 compressor disable differential Tamp Tour 0 50 0 lu 11 R14 cnableanti freeze 0 D L6 serial protocol type R and I O board presence W 0 to 6 bit2 weight 4 read write used to disable the error E SR Notes on switching the machine off and on The unit can be switched OFF and ON from the keypad using the Mode button by opening digital input 2 or 3 or simulating the opening of the same by pLAN through variable 172 only if L5 32 and H4 1 or controlling digital input 3 via pLAN with the variable 173 only if LS 64 and H5 3 in any case who turns the unit OFF always has priority over who wants it ON again
96. sounding of the buzzer H11 1 or not H11 0 Carel code 030220306 rel 2 1 dated 23 11 07 47 Aria H12 Front button backlit when not acting the buttons Allows the level of luminosity of the front buttons when the keyboard is not operated to be selected H12 0 buttons not illuminated H12 1 buttons 50 illuminated H13 Enable clock Used to select whether to enable the operation of the instrument with the clock and whether this is built into the instrument H13 1 or if the time comes from the Carel pLAN local network H13 2 In fact in case there is a multi zone application the clock management must be centralized on the pCO or pCO the connected Aria will not have the clock option The automatic changeover of the set point category by time bands can be disabled by adding 4 to the value of H13 The following configurations are this available 0 disabled 1 local 2 remote from pLAN 3 as for 2 4 as for 2 5 local without time bands no category changeover from clock 6 remote without time bands no category changeover from clock WARNING turn the machine off and on again after changing this parameter H14 Valve logic This sets the logic of the cycle reversing relay H14 0 means that the relay is open in heating and closed in cooling H14 1 means that the relay is closed in heating and open in cooling H15 Dehumidification in Unoccupied and Night time mode This parameter can be used to exclude the deh
97. ss RX INDEX ADD 2 L3 256 of the device with network address set by parameter 12 The data is only transmitted in the case of variations to the data themselves except for the parameters with address from 1 to 111 which are only sent on explicit request var 156 In order not to overcharge the management of such variations the remaining variables have been divided into the following groups e analogue variables from 138 to 150 e integer variables from156 to 170 e binary variables from 171 to 186 The variation of one of the variables in the group means the whole group will be sent The range of values allowed is indicated in brackets when there are no numeric indications or references to other parameters the first identifier has a value of zero and the successive ones in the list have values in increasing order example OFF AUTO SPDI SPD2 SPD3 means 0 1 2 3 4 Some data is visible both as variables and as parameters if accessing a set point as a parameter rather than as a variable the modification will NOT be accepted as delayed saving is required which is only possible when accessing as a variable Following is a description of the information which may be exchanged between the Aria controller and the pCO or pCO 5 5 1 List of variables If the variation field in the brackets contains some nouns they are the meaning of the values 0 1 2 of the parameter For ex R19 P P I means 0 P 1 P I In the pa
98. t 1 modulating output only 2 modulating output in Cooling TRIAC outputs in Heating 3 modulating output in Heating TRIAC outputs in Cooling 4 modulating output in Cooling non modulating TRIAC outputs in Heating action of 0 10 output 5 as for 0 but Coin selection fon probe BS HIRIS 6 as for 1 but Cooling Heating selection from probe B3 7 as for 2 but Cooling Heating selection from probe B3 2 8 as for 3 but Cooling Heating selection from probe B3 9 as for 4 but Cooling Heating selection from probe B3 EVES address of pLAN Aria controller supervisor ea address of the device the variables are sent to 0 send disabled page of 256 bytes for writing variables to the pCO or pCO damper opening or closing time used both for stand alone and per free cooling free heating bit 0 1 2 3 4 5 6 7 B1 B2 B3 NU ID1 ID2 ID3 Set Point category val 0 local 1 from pLAN 0 no protocol 1 supervisor protocol 2 pLAN protocol 3 no protocol 4 no protocol no I O board 5 supervisor protocol no I O board 6 pLAN protocol no I O board 0 1200 baud 1 2400 baud 2 4800 baud 3 9600 baud CAS meaning greater than not equal to Carel code 030220306 rel 2 1 dated 23 11 07 41 Aria 7 2 Description of the parameters 7 21 Probe set up S parameters S1 B2 probe type Indicates the type of probe connected to terminals B2 AVss of the terminal There may be no probe S1 0 an active probe
99. t compressors 3 free cooling free heating without compressors 4 disabled 5 free cooling with compressors 6 free heating with free cooling free heating with compressors difference between Tam and Tour at which the compressors are disabled anti liquid hammer re enabled when the difference is less than or equal to R29 2 C 0 function disabled 50 an difference between BI and B3 to switch mode between cooling and heating H1 15 minimum delay between 2 starts of same compressor minimum delay between starts of the two compressors compressor operating hours maintenance no operating hours beyond which maintenance is requested threshold 0 function disabled delay between heaters on speed of supply interval between switching on heater 1 heater 2 and heater 3 fan and between speed 1 speed 2 speed 3 of the supply fan split delay between activation of actuators and supply fan delay between deactivation of actuators and supply fan hour counter supply fan resolution 0 5 hours supply fan operating hours maintenance no operating hours beyond which maintenance is requested threshold i 0 function disabled 0 function disabled 1 supply fan active even when the actuators are off supply fan always on 2 2 comfort management external fan stop delay aiable cofdehsation function F7 0 disabled 1 enabled in Cooling 2 enabled in Heating 3 always enabled external fan off temp in cooling external fan restart t
100. ter d13 again setting it to 0 or alternatively when a temperature is reached d4 or a maximum time elapses d6 or by pressure switch on a digital input in the latter three cases parameter d13 changes from 1 to 0 automatically 5 2 4 3 Compressor stops at start and end defrost The compressor can be stopped at the start and the end of the defrost cycles The defrost start sequence is the following defrost request stop compressors wait time d9 reversing valve wait time d10 compressor starts and defrost is performed Si Ar eo oa ae The end defrost sequence is the following end defrost reached stop compressors wait time d9 reversing valve wait time d10 compressor starts if required by the system DA Wi If one of the two times d9 or d10 is equal to 0 the compressor is not stopped at the start or at the end 5 2 4 4 Supply fan activation delay after defrost If a defrost is performed without the support heaters d8 0 the supply fan remains off To prevent the fan from starting immediately at the end of the defrost sending cold air into the room this can be delayed from the start of the compressors by a time set using parameter F13 5 2 4 5 Smart defrost cycles The minimum time that must elapse between two defrosts d7 can be automatically decreased if the defrost requests are so frequent that the time d7 is considered too high The time d7 is decreased if two successive defrosts are started when the time d7 has
101. ter is visible during the programming mode this may depend on the values of other parameters or on the configuration of the machine specifically C indicates machines with at least 1 compressor C2 indicates machines with 2 compressors F2 indicates machines with at least two speed supply fans V indicates machines with reversing cycle valve heat pump CLK indicates machines with real time clock OPT indicates machines fitted with back lit LCD buzzer and B2 probe 7 1 1 Table of parameters For a more detailed description of the meanings see Description of the parameters S PROBES type of second probe B2 si F o 2 0 absent 1 0 1Vdc temperature 2 0 1Vde humidity 150 C 0 0 min value of second probe B2 Esra 238 S3 F his temperature humidity value corresponding to 0Vdc 150 rH 150 SE o max value of second probe B2 S2 302 F 212 temperature humidity value corresponding to 1Vde S1 gt 0 150 rH 100 10 54 F 32 temperature control probe 12 0 12 0 C 0 0 0 calibration probe B2 on 54 F 32 constant value to add subtract to from the value measured by probe B2 S1 gt 0 12 0 rH 0 0 digital filter for input B1 Peto 15 1 4 filter for analogue input stabilisation of the measurement internal or external Carel NTC temperature Vineria Iextendal probe BI 4 digital filter for input B2 15 1 4 filter for analogue input stabilisation of the measurement digital filte
102. ting request the starting of the fan should be delayed by the time F13 to avoid sending cold air into the room F14 Forced fan activation delay To prevent the supply fan from remaining off for a long time in very stable environment the time set by F14 is considered the maximum acceptable inactivity time after which the fan is activated for the time set by F15 The inactivity time F14 is not counted when the machine is off F15 Forced fan activation time When the time F14 has elapsed with the machine on and the supply fan off the fan is activated for the time set by F15 even if not requested by the system If the unit is switched off during this function the action is cancelled 7 2 5 Defrost d parameters d1 Defrost execution Establishes if the defrost control of the external heat exchanger in the case of a heat pump unit must be performed If d1 0 the control is disabled If dl 1 control is enabled and is performed according to the measurement of probe B3 on the relay power board d2 Type of defrost termination Establishes if the defrost termination is based on time d2 0 or by temperature threshold d2 1 or when the defrost termination contact represented by the digital input ID3 is detected open d2 2 Thus if d2 0 the duration of the defrost is fixed and is set by parameter d6 If d2 1 the defrost ends when probe B3 on the external heat exchanger reaches the end defrost threshold d4 if such a value is not re
103. tion is still available if necessary when enabled the start up point of the compressor is moved away from the set point of the value of the neutral zone as for other operating modes The supply fan is driven using 3 contacts RL3 RL4 and RLS activating the different speeds in mutual exclusion Haux relative set point gt gt Differential_ 5 Differenpal A i s s o Haux diff iy lt y Haux ON SE CI ON CI ON y temperature C1 OFF ie Set point F3 F2 F1 F1 F2 JF3 temperature 100 66 33 of 33 66 100 of differential differential ilo Neutral Neutral zone zone Fig 5 2 3 2 Carel code 030220306 rel 2 1 dated 23 11 07 20 Aria e at minimum speed only relay RLS is energised e at medium speed relay RLS is de energised and relay RL4 is energised e at maximum speed relays RL4 and RLS are off and relay RL3 is energised The reverse sequence is adopted for switching off The configuration H1 19 is a variation of H1 14 where the reverse cycle valve and the heating element are absent that is a cooling only unit 5 24 Defrost management The defrost process enabled if parameter d1 1 is activated in the heat pump units during heating when the outside temperature is very low and the coil of the external heat exchanger is getting frozen The start of the defrost is determined by the drop in the temperature of the external coil measured by probe B3 below a certain thr
104. to Stand Alone models ro LU p de T DU mi gt Fig 6 1 When more than one alarm is detected at the same time the display automatically scrolls through the occurred alarms 6 1 Resetting the alarms 6 1 1 Muting the buzzer pressing the RESUME button for less than 3 seconds whenever an alarm is detected mutes the buzzer while the outputs deactivated by the alarm in question remain de energized The alarm code continues to be displayed alternating with the measured temperature value 6 1 2 Automatic reset some alarms are automatically reset when the cause is no longer present that is they are deactivated relevant message on the display buzzer and alarm relay 6 1 3 Manual reset pressing the RESUME button for more than 3 seconds if the alarm conditions have been removed the instrument returns to the normal operation and the alarm relay is de energized If on the other hand the alarm conditions persist the alarm situation in progress remains 6 2 Description of the alarms Detection is immediate for all alarms except the high and low temperature alarms which are activated after a period set by parameter P5 When the machine is turned OFF probe alarms are detected only The alarms which can be detected are described in the following table CODE TYPE OF ALARM EXPLANATION Compressor 1 maintenance alarm Compressor 1 has exceeded the no of operating hours specified by parameter c7 HR 2 Compresso
105. ty of the compensation can be set using parameters R23 and R24 these represent coefficients and the higher their value the lower the compensation for the same outside temperature variation For example setting R23 1 leads to a 1 0 C increase in the set point for each 1 0 C increase in the outside temperature setting R24 2 leads to a 0 5 C decrease in the set point for each 1 0 C decrease in the outside temperature Setting R23 or R24 to zero disables the corresponding compensation The maximum set point increase and decrease values are set using parameters R25 and R26 The function is enabled using parameter H16 N B For the correct use of the external probe see the paragraph Using probes B2 and B3 5 2 7 Free cooling amp Free heating The terms Free cooling and Free heating refer to the introduction of outside air into the climate controlled environment in favourable temperature conditions to either heat or cool the environment and save energy The outside air is introduced into the room by modulating the degree of opening of a damper controlled by two relays one for opening and one for closing The relay activation time is the total damper stroke time parameter L4 Whenever the control requests the total closing or opening of the damper the system increases the energising time of the corresponding relay by 25 to ensure complete closing or opening At each start up e g switching from Off mode to Auto mode and whenever Aria is powered
106. umidification function in the Unoccupied and Night time modes H15 is valid if the dehumidification function has been enabled by parameter r7 H16 Enable set point compensation When H16 1 the compensation of the temperature set point is enabled and the system respects the parameters R23 R24 R25 and R26 H17 Pump flow switch alarm delay This is the delay referred to the acquisition of the pool water flow switch alarm on digital input no 2 Note that this alarm can only be used when H1 17 H18 Pump operation Three different operating modes are available for the pool water pump H18 0 the pump is on when the water heaters are on H18 1 the pump is always on H18 2 the pump is always on in Comfort mode while in Unoccupied and Night time mode it is on when the heaters are on H19 Modulating output operating mode only for TAZONE with 0 to 10 V output 0 only TRIAC outputs as old version 1 only modulating output 2 modulating output in Cooling TRIAC outputs in Heating 3 modulating output in Heating TRIAC outputs in Cooling 4 modulating output in Cooling non modulating TRIAC outputs in Heating 5 as for 0 but Cooling Heating selection from probe B3 6 as for 1 but Cooling Heating selection from probe B3 7 as for 2 but Cooling Heating selection from probe B3 8 as for 3 but Cooling Heating selection from probe B3 9 as for 4 but Cooling Heating selection from probe B3 Carel code 030220306 rel 2 1 dated 23 11 0
107. version can also perform Proportional Integral regulation selected by parameter R19 Haux relative set point lt px Diff Differential Differential Haux Haux ON Cl OFF C1 ON C1 ON temperature Haux OFF Set point ii zone pes zone Figure 5 1 1 5 2 Stand alone version 5 2 1 Proportional regulation algorithm For the models with 1 regulation output in direct operation without neutral zone5 2 1 1 Aria activates the output when the controlled measurement exceeds the value of set point differential and the output remains ON until the controlled measurement decreases to the value of the set point In reverse operation still without neutral zone Fig 5 2 1 3 the device activates the output when the controlled measurement falls below the value of set point differential and the output remains ON until the controlled measurement rises to the value of the set point Differential le Differential C1 OFF CI ON i t empora ure temperature Set point Set point Set point Neutral zone Set point Differential Differential Neutral zone Fig 5 2 1 1 Fig 5 2 1 2 The Fig no 5 2 1 1 and 2 show respectively direct without neutral zone and direct with neutral zone In AUTO operation Fig 5 1 1 the device can operate in both direct and reverse modes If the system has one or two auxiliary heaters these if enabled are activated according to the value of Haux set point relat
108. when the temperature is below to the set point on the other hand it closes it completely If the temperature is within the lateral band identified by the differential the damper is open proportionally in the position shown below by the Set Point based on the excursion time of the dampers parameter L4 Damper opening HEATING Damper opening eC TP Trea 10 COOLING occ cette eee tees eeee eee eee 100 eea temperature i temperature setpoint Setpoint pCO setpoint gt differential pCO setpoint Setpoint setpoint Fire symbol Fire symbol i differential lit i off ice symbol off i ice symbol lit Fig 5 3 1 Carel code 030220306 rel 2 1 dated 23 11 07 27 Aria In time band operation mode pCO must be provided with the real time clock option part no PCOCLKMEMO the current time is in fact then sent to the zones through the network The pCO on the other hand does not require an optional board OFF mode The damper is totally closed and no regulation is performed Humidity regulation The rate of opening of the damper is decided according to the temperature the pCO can however decide the percentage of humidity to introduce into the duct according to the values arriving from the individual zones related to the ambient humidity and the required humidity humidity set point 5 3 2 Damper management At start up the instrument forces the dampers to close completely in the excursion time equal to t
109. with 0 1 Vdc output for measuring the temperature S1 1 or for controlling humidity S2 2 Depending on the type selected the corresponding value of the measurement will be shown in the top right of the display if enabled by parameter H7 S2 Minimum value B2 probe Sets the temperature or humidity value corresponding to a voltage of 0Vdc of B2 probe S3 Maximum value B2 probe Sets the temperature or humidity value corresponding to a voltage of 1 Vdc of B2 probe S4 Control probe B1 calibration Used to correct the value measured by probe B1 S5 Calibration B2 probe Allows the correction of the value measured by B2 probe S6 Digital input filter probe B1 Allows the setting of the coefficient used in the digital filtering of the value measured and the maximum variation which can be measured by the probes on the terminal in a regulation program cycle High values for this parameter allow the elimination of any noise in the analogue inputs yet diminish the reaction time of measurement S7 Unit of measure for the temperature Allows the unit of measure for the temperature to be selected either in degrees Centigrade S7 0 or degrees Fahrenheit S7 1 Once selected all data is displayed in the chosen unit of measure and the already set values will be converted S8 Remoting B1 probe Informs the control of the presence of the outside temperature probe connected to terminals B1 AVss WARNING to use the external probe for regulation
110. xceeds the humidity set point the corresponding differential as described for direct operation In case two stages for cooling are available the first one is engaged at 50 differential the second one at 100 The process can only occur if e the machine selected is a conventional one with cooling compressors and heating actuators heaters that is when parameter H1 has a value between 5 and 10 e the process has been enabled parameter R7 1 e the humidity probe is present parameter S1 2 e the temperature does not fall below the set point differential possible neutral zone 0 5 C priority is given to temperature regulation In such event the process of dehumidification is interrupted to allow the ambient temperature to return to the set point value following this the process of dehumidification may recommence If more two compressors are available and compressors rotation has been enabled the actuator to be activated by the dehumidification process is determined as described in the section about paragraph Output management and under the heading Compressor rotation In the event of cooling calls along with dehumidification requests the number of cooling stages energized will vary according the higher of the two requests Whenever in dehumidification process the symbol of ice will lit only if any of the heating actuators are not energized yet 5 2 5 1 Dehumidification in Night time or Unoccupied mode In orde
111. xes conforming to standards CEI C 431 IEC 670 If this is not available use the mounting holes on the shell as a guide for drilling holes into the wall and then use the screw and plug kit supplied 4 Connect the cables to the terminals on the rear shell of the terminal as indicated in Fig 3 2 1 or Fig 3 4 1 according to the application you are facing to stand alone or multi zone Check the correct installation of the two jumpers J1 and J2 located on the rear side of the terminal see Fig 1 2 1 6 Finally close the instrument moving the front panel onto the rear shell with a hinge movement in the opposite way as used for opening First the long side of the front panel near the display is snapped onto the rear shell then the opposite side being careful that the terminal pins slide into their corresponding female terminals a Vista inferiore Lower view Figure 3 1 1 Carel code 030220306 rel 2 1 dated 23 11 07 9 Aria 3 2 Connection diagrams for stand alone applications In Fig 3 2 1 is shown the connection diagram for stand alone type applications 23 1 O Line Sonda NTC di regolazione remota l NTC probe for remote regulation im a al ExT 1D com AJ O D y Se Lie de de ISS S S Sonda su scambiatore esterno
112. xternal fan in heat pump units The external fan is activated together with the compressors and deactivated after a set time parameter F6 from the deactivation of the compressors It is deactivated when defrosting The external fan may be managed as desired simultaneously with the compressors or alternatively based on the outside temperature values The choice depends on parameter F7 If F7 1 2 or 3 the external fan is managed on the bases of temperature values on the external heat exchanger that determine its behaviour In cooling mode the fan is started together with the compressors for a time equal to F10 after this it starts and stops based on the outside temperature thresholds F8 and F9 when the outside temp gt F9 the fan starts when the outside temp lt F8 the fan stops In heating mode the external fan stops when the outside temp gt F11 and starts when the outside temp lt F12 the time F10 is not used in heating mode The parameter F7 allows selection between 0 fan starts with the compressors in both cooling and heating 1 fan starts based on the outside temperature in cooling starts with the compressors in heating 2 fan starts based on the outside temperature in heating starts with the compressors in cooling 3 fan starts based on the outside temperature in both cooling and heating Carel code 030220306 rel 2 1 dated 23 11 07 26 Aria n di o pop T on the external heat exchanger HEAT T
113. y is guaranteed by a parameter used to quickly configure the type of air conditioning unit being controlled A special version is also available for multi zone applications in which up to 30 terminals are located in different rooms measuring the local temperature and optionally humidity then communicating with the control of the centralised air conditioning unit pCO or pCO 1 GENERAL CHARACTERISTICS 1 1 Functions Aria is a Carel electronic microprocessor based control designed by Carel to manage single or multi zone Air Conditioning units in residential commercial applications Aria is organized into two integrated systems a terminal installed in the room and a power board for managing the actuators to be placed in the electrical panel of the Air Conditioning unit itself The terminal is connected to the power board using a two lead cable thus greatly simplifying installation The power board is available in two different models depending on the specific application e one model for the control of stand alone air conditioning units relay power board e one model for the control of a motorized damper where Aria is used for zone control triac power board 1 2 Terminal The terminal is the heart of the system it is fitted with an internal probe for measuring the ambient temperature this may be remotely located in the duct and can be supplied with an extra active type probe 0 1 Vdc output for measuring the

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