LMC340i User manual
Contents
1. dada LMC340i RE1OUT RE1IN RE2OUT RE2IN RESOUT RE3IN RE40UT RE4IN RESOUT NO RESOUT NC RESIN CN33 34 2 x USB Host Q E EE Q Q qi NP Ethernet Power supply 12 24Vac 15 30Vdc CPR1 230Vac LLV CPR2 Unloader CPR1 3 CTS Alarm Forced start Alt Setpoint 3 Pdis 3 Psuc User manual LMC340i 6 3 LUP200 connections LMC300 CN7 LUP200 12VU RS485 DATA1 A1 ON R DATA2 B2 wo YG B DATA Display Power Nag heater supply CN1 CN2 CN3 CN4 1 2 12 3 1234 LL Cy o 9 A05 ZF E yan Mga i lt lt lt e ES 2 g O42 O O O Ot gt o S D Max 150 mA AN d Remove jumper if external power supply is used Note The display heater must be connected to a 24 VAC power supply capable of supplying up to 150 mA Page 9 6 4 Wirediagram single compressor use Page 10 L1 L2 L3 PE F1 e e ELM e EI eo Y G Q1 vw 00S 230VB 230Vac NB m SEN NN CPR protect Mcpr CPR protect Input C Power LA N input E 2 A mE 1 5 1 Psuc RE E VAN1 5V Pressure Lir 3 Gnd N Pai 2a 4 VANZ 5V lt Bia A a 1 Discharge gt F 5 A2 Signal Pressure 6 Gnd Tamb 3 Gnd 4 Temp3 C po TO 5 S N TRoom 5 Tis 9 Gnd 2 Temp8 Ta oS 3 Gnd C N 5 Temp10 6 0 10V Ext Setadj 20 Ee2. WLodam BY BITZER GROUP Lodam Condensing Unit Controller User manual Version 3 0 Contents Me A e Pr o PI 4 We ISO area 4 EA AN 4 2 General a 5 SNB AA TT 5 4 Mounting of LMC300 controller and CUPDZ0o0 co coccion cnn 6 mU eV 6 VM NE ILS 7 6 4 3 Panel cutout Tor the LUP200 EE 6 5 Technical data 7 6 Connections on the EMC34AOIKIU iiie ee rettet recte eege 8 6 1 Single compressor COnTISuratiOn RR 8 6 2 Dual compressor configuration EE 8 O3 RH Z0 0 CONNEC UONS MERCIER Er 9 6 4 Wirediagram einglecCompt seorUsgp 0 10 6 5 Wirediagram dual compressors with Fl or step less CR 12 6 6 Wirediagram dual compressor use with unloaders 15 6 7 Wirediagram dual compressor with one Fl and one On Off comp 17 7 O list for the LMC340i Condensing Unit controller 18 71 Single compressor configuration EE 18 7 2 Dual compressor COnTSuratIOn a 20 8 Menu system on the LMC34 0i iii ea 23 8 1 Using the display and bemenusvetem rriren 23 A R A 23 8 3 Password menu 23 9 4 COMIMSSIONINgON SITO scarico yori da 24 A AA 25 10 Alarm list and roublechootmg cc conocio eset RR mm 26 10 1 Alarm list and trouble shooting 27 Page 2 User manual LMC340i 1 NTC temperature resistance tane 30 DNE NN MO ANA AINA se ge ANA AA eee ee oe 31 Page 3 Read th
3. Weekly program with real time clock 1 Lodam full graphical colour display with keyboard Easy installation Higher max capacity of compressors Refrigerant configurable Heat recovery Liquid compressor operation detection Web server Modbus interface to external master controller Supports many languages This user manual applies to software version 2 1 6 x or later of LMC340i LUP200i Connector kit for LMC340i 3NIC temperatures sensors High temperature NTC temperatures sensorr 2 Pressure sensors with cables Access license to Lodam Multi Tool E aur qe ar a EU Page 5 4 Mounting of l Ak MC300 controller and LUP200 4 1 LMC300 Mounting dimensions All dimensions are in mm 138 4 125 0 4 X 04 4 le ed TI la 4 3 Panel cut out for the LUP200 56 0 10 2 4 160 P i e A de Lt ES 0 302 T l DIN Rail 35mm Page 6 5 Technical data Technical specifications LMC340i Condensing Unit controller 185mm 110mm w 61 mm h Size Power supply CPU Operating temperature Storage temperature Enclosure protection Relative humidity Temperature inputs Analogue inputs Digital inputs High voltage digital input Analogue outputs Relay outputs RS485 ports USB por
4. Check supply voltage and all three phases at Fl input Interrupt supply voltage to Fl Wait 5 min Check cooling of Fl Restart Replace Fl or compressor if necessary Disconnect power for 10 min Restart Replace Fl if necessary Check previous alarm messages eliminate causes and delete messag es Disconnect power for 10 min Restart Replace Fl if necessary C600 C601 C602 W603 W604 W605 W606 C607 C608 C609 C610 C611 C620 C621 C622 C623 W624 C625 W626 C627 C628 C629 High pressure limiter switch has cut out Compressor overheat protection device has cut out or relay module LOM301 is defect Oil level too low Motor of fan 1 or fan 2 or both overheated External setpoint adjustment beyond allowed limits A sensor transmitter or a cable belonging to it is damaged Tdis limiter activated repeatedly Tc condenser temperature limiter activated repeatedly Fl current limiter activated repeatedly To suction temperature activated repeatedly Dual pressure switch active Compressor 1 failure Dual compressor mode Compressor 2 failure Dual compressor mode HP faults Liquid in suction line Liquid in suction line Liquid in discharge line Liquid in discharge line Multiple liquid discharge line Multiple liquid suction line Condenser fans blocked Check condenser Is operating point within application limits Check signal voltage 230VAC Check oil leve
5. Page 28 Failure in the data base of the controller Failure of the LM340 controllers real time clock Voltage of battery of real time clock too low Controller been switched of too long Note all changed settings and perform a factory reset in the Installer Service section Update LMC340i controller software Replace LMC340i controller if necessary Replace the LMC340i controller Set date and time of controller in menu system Replace LMC340i controller if necessary User manual LMC340i Some temperatures will also show 100 C W909 No model code Open the factory menu and set the correct compressor control mode in the Model Code field The software in the controller is a test version Update the LMC340i MES Ves version controller software to a released version W999 The unit is in manual mode Change mode from Manual to On in User Mode Page 29 Il NIC temperature resistance table Table with relation between temperature of the NTC sensor and the measured resistance in the NTC sensor Resistance is in Ohm and temperature in C Temp Temp Temp t 2K Temp 4K Temp 6K Temp t 8K 9C Ohm Ohm Ohm Ohm Ohm 0 C 2 C 4 C 6 C 8 C 50 667828 579718 504230 439445 383712 40 335671 294193 258307 227196 200184 30 176683 156199 138322 122687 108991 20 96974 86415 77121 68927 61693 10 55298 49663 44610 40150 36183 0 32651 29500 26688 24173 21922 10 19904 18093 16465 15001 13683 20 12494 11420
6. 1 User manual LMC340i L1 L2 L3 Display Output heater Display RS485 B s EI e Gnd 6 Gnd LUP200 Remove jumper if p 12VdcOut using external Gnd power supply 3 12Vdcin CPR 1 capacity uo Lp HQ C 1 0 10V A a a a FI 1 d Gnd 3 HER Mr SUL MEE NS 0 10V bst mng ra aaa Ul VI WI Y G LL 11 pa CPR1 237 l N SL NP S CPR 2 capacity C 1 0 10V 5 n gt gt 0 10V MO mas eec cn E 4 l A LMC340i CPR2 BR S DO RE1IN CJ Liquid line valve RE1OUT nnn REAIN 1 HP switch RE4OUT 2 RE3IN 3 RE3OUT 4 ZI tf RE2IN 5 BEN RE2OUT 6 7 8 1 C RESIN 1 N al E RESOUT NC 2 22 7 BMS alarm 1 EFE 3 RESOUT NC 3 F4 REGIN 1 E BER do RE f See EU Ex C RE7IN 3 bg F N RE7OUT A m 2 RESIN 5 IN Y RESOUT 6 Mrami C RESIN 7 d RE9OUT 8 Me i Fan10H Fan speed 0 10 V ES kad C 1 E N SN Ee EE acc cQ MADE DIS CM CM CD Mfan2 4 d 3 a a S Ge E a SS ic SSS SS zt Se l M3 Fan 2 OH Page 13 6 6 Wirediagram dual compressor use with unloaders Page 14 L1 L2 L3 PE r SS Y G F1 0 Q1 vu 00S 230VB 230Vac NB Tr1 Power input Paue Suction Pressure Pais Discharge Pressure Tamb Troom Tais Tsuc Ext Setadj Alt Setpoint Forced start Fan 1 OH
7. e e SEN Check cables and connector LMC340i CN11 4 5 6 W125 Circuit of high pressure transmitter open or short circuit Replace high pressure transmitter Frequency inverter Fl Check data cable and connector LMC340i CN6 8 and LM C340i CN7 2 3 C500 No BUS communication to FI Check power supply of Fl Replace data cable or Fl if necessary C501 FC local control LAG e ORS mode Use a hand terminal to change the C502 FC EEPROM error The Fl is defect C503 FC statorerror UO iasa the FI and the compressor motor is wrong C504 FC AnalogRef 1 error Signal level to the Fl analogue input 1 is faulty C505 FC AnalogRef 2 error Signal level to the Fl analogue input 2 is faulty C506 FC AnalogRef31 error Signal level to the Fl analogue input 3 is faulty Check the communication cable from LMC340i CN6 8 CN7 2 and C507 FC Serial communication Error CN7 3 to the Fl The Serial port of the Fl is defect C508 Short circuit in power cable from Fl to compressor Check cable between Fl and compressor C509 Internal failure of the Fl SEH o SE Hir ear C510 Earth fault in electric cable from Fl to compressor or in Check insulation of the Fl gt compressor and resistance of compressor compressor itself motor Operation beyond compressor application limits or compressor dam C511 Overcurrent at Fl aged Disconnect supply voltage of Fl for 10 min Then restart Check operating conditions replace compressor if necessary C512 Compressor motor too hot Check motor c
8. 0 10V Sr grum NB Fan 2 OH NB SCPR1 Safety chain CPR1 NB 4 Temp3 6 SCPR2 Safety chain CPR2 A Ka 8 ACIN4B HP switch Unit On Off External release Modbus Master contro PS gt E D a N A lt D UH Z VANT 5V A1 Signal Gnd KONO ie VAN2 45V A2 Signal Gnd G G Z 2 Temp2 3 Gnd zZ Gnd 5 Temp4 9 Gnd N Temp8 3 Gnd Uu Z Temp10 Gnd gi o DIN1 Gnd DIN2 Gnd ACINTA ACIN1B ACIN2A 4 ACIN2B 5 ACIN3A S rd SCO ES N HZ CO N PR LA o ACIN3B RNZO 9 ACINSA 10 ACIN5B 11 ACINGA 12 ACIN6B 1 Gnd 2 Data 3 Datat 4 12Vdc NU ZO KA D ZS o User manual LMC340i L1 L2 L3 Display Output heater Display RS485 Data2 5 P Data Gnd 6 e Gnd LUP200 Remove jumper if pee 12VdcOut C using external Gnd N power supply 3 12Vdcdn 2 1 4 0 10V Unloade C 0 10V 4 N Gnd 3 2 j Ghd controller 4 0 100 E e si sen ROO Y G 17 CPR 2 capacity C 0 10V 5 3 0 10V Unloader LLLI Li N Gnd 6 d 2 controller 0 100 LMC340i Lu Br Z o RE1IN CJ Liquid line valve RE1OUT nn sn REAIN 1 HP switch RE4OUT 2 RE3IN 3 RE3OUT A RE2IN 5 RE2OUT 6 3 8 CJ K1 CPR 1 C 1 RESIN 1 Pe 3 N pecour Nc 2 gt gt 4 BMS alarm 1 RESOUT NC 3 2 F4 XM MM CONUM F3
9. 10450 9572 8777 30 8056 7402 6807 6266 5774 40 5325 4916 4542 4200 3887 50 3601 3339 3098 2877 2674 60 2487 2315 2157 2011 1876 70 1752 1637 1530 1432 1341 80 1256 1178 1105 1037 975 90 916 862 811 768 720 100 679 640 604 571 540 110 510 483 457 433 401 120 389 369 350 332 315 Page 30 User manual LMC340i 12 Index A Alarm list 26 C Commissioning on site 24 Connections 8 D Definitions 5 Dual compressor configuration 8 20 F FAO 25 Installer Basic settings menu 24 L LMC300 6 LUP200 6 M Main menu 23 Menu system 23 Mounting dimensions 6 N NTC 30 p Password menu 23 S Single compressor configuration 8 18 T Technical data 7 Troubleshooting 26 Page 31 Innovative and energy saving climate control When it comes to climate control Lodam is one of the most experienced you can turn to For more than four decades we have developed produced and implemented electronic solutions dedicated to optimising applications like Compressors Condensing units Heat pumps Air conditioning Refrigerated truck and trailer Reefer containers We know the importance of reliable energy efficient operation and constantly push techno logical boundaries to bring you the most innovative and forward thinking solutions As part of the BITZER Group we are backed by one of the world s leading players in the refrigeration and air conditioning industry This alliance provides us with extensive network and
10. LMC340i ANOUTO Fan speed 0 10V ANOUT1 RE1OUT FI speed O 10V 2 GND ANOUT2 ANOUT3 RE1IN GND RE20UT RE2IN TEMP1 RESOUT TEMP2 RESIN GND RE40UT RE4IN Tamb Troom 2 1 TEMP3 dl v TEMP4 GND TEMP5 TEMP6 GND TEMP7 TEMP8 GND TEMP9 TEMP10 GND TEMP11 GND RESOUT NO e RES5OUT NC RESIN Tsuc Ext Setadj 12VU Data1 A1 Data1 B1 Data2 A2 Data2 B2 GND FI Com OI lt LI Eu 9 Y LUP200 display Seege LMT Fan1 OH Fan2 OH Oil level signal HP Switch Unit ON OFF Run CN33 34 230 Vac 2 x USB Host Compressor ready Page 8 Power supply 12 24Vac 2 5 15 30Vdc FI power 230Vac LLV Oil heater CPR protect 3 l N 3 CTS Alarm Forced start Alt Setpoint j 3 Pdis 3 Psuc Y CU Ethernet 6 2 Dual compressor configuration CN2 Fan control power MEQ 1 12VPWR amp 2 GND Fan speed 0 10V CPR1 CAP CPR2 CAP 12VBAT GND il ANOUTO ANOUT1 GND ANOUT2 ANOUT3 Tamb Troom Tdis Tsuc Ext Setadj Fl Com GND TEMP1 TEMP2 GND TEMP3 TEMP4 GND TEMPS TEMP6 GND E 4 4 D TEMP7 TEMP8 GND TEMP9 TEMP10 GND TEMP11 GND 12VU LUP200 display Data1 A1 Data1 B1 Data2 A2 Data2 B2 No Lu x Kh 4 O LMT Gees GND Fan1 OH Fan2 OH SCPR1 HP Switch Unit ON OFF Run 230 Vac Unloader CPR2
11. range 60 C to 100 C 2 terminals per input e Signal e Gnd External setpoint adjustment A 10 k Q resistor must be mounted from Temp10 to Gnd e 0 10V e 4 20 mA a 1500 resistor must be mounted parallel with the 10 k0 resistor Not galvanic isolated Suction pressure For use with Sensata 2CP5 49 200 psia absolute 0 5V Discharge pressure For use with Sensata 2CP5 47 500 psig rel O 5V Fan speed for condenser fan controller 0 10V 10mA Not galvanic isolated Compressor capacity for test purposes 0 10V 0 100 0 10V 5mA Not galvanic isolated Compressor 1 capacity 0 10V 5mA Not galvanic isolated Compressor 2 capacity 0 10V 5mA Not galvanic isolated RS 485 cable for Fl communication Half duplex max 100m twisted pair cable grounded shield shunt capacitance 50pF m 1000 resistance AWG24 2 1200 termination Receiver impedance gt 12kO e GND e Data A1 e Data B1 Page 21 I O list LMC340i Condensing Unit controller s Dual compressor configuration Description Display LUP200 Ethernet Modbus External master con troller Fan control power CPR1 LLV Liquid line valve CPR2 Unloader 1 3 BMS Alarm Mfan1 Mfan2 Unloader 2 3 Power supply Page 22 DO DO DO DO DO DO DO DO Data2 CN7 4 Data2 CN7 5 GND CN7 6 RS485 Ethernet CN31 Data CN32 3 Data2 CN32 2 GND CN32 1 RS485 12PWR CN
12. 2 1 GND CN2 2 RE1OUT CN14 8 RE20UT CN14 6 RESOUT CN14 4 RE40UT CN14 2 RE 5OUT NO CN13 3 RE6OUT CN22 2 RE7OUT CN22 4 RE9OUT CN22 8 AC CN2 1 2 NO NO NO NO NC NO NO NO RS 485 cable for display communication LUP200 Half duplex max 100m twisted pair cable 2 1200 termination Receiver impedance gt 12k0 e 12V I limit approx 100mA e GND e Data2 A2 e Data2 B2 10 100 Mbit TIA EIA 568 RS 485 cable for Modbus communication with external controller Half duplex max 100m twisted pair cable 2 1200 termination Receiver impedance gt 12k0 e 12V I limit approx 100mA e GND e Data A e Data B Power for fan controller 12V max 500 mA Relay for compressor 1 ON OFF Max 10A 250VAC 10A 30VDC Relay for solenoid valve in liquid line Signal that oil return function is active Max 10A 250VAC 10A 30VDC Relay for compressor 2 ON OFF Max 10A 250VAC 10A 30VDC Relay for unloader capacity regulation CPR 1 Max 10A 250VAC 10 30VDC Relay for alarm for external system Max 10A 250VAC 10 30VDC Relay for fan motor 1 ON OFF Max 10A 250VAC 5A 30VDC Relay for fan motor 2 ON OFF Max 10A 250VAC 5A 30VDC Relay for unloader capacity regulation CPR 2 Max 10A 250VAC 10 30VDC Power supply for the LMC340i 12 24 VAC 15 30 VDC 4 15 VA o Menu system on tne LMC340i The menu system is used to configure the LMC340i controller adjust parameters
13. C sensor Measurement range 60 C to 100 C Accuracy e 1 C in the range 30 C to 60 C e 3 C in the range 60 C to 30 C e 3 C in the range 60 C to 100 C 2 terminals per input e Signal e Gnd External setpoint adjustment e 0 10V e 4 20maA A 150 O resistor must be mounted from Temp10 to Gnd Not galvanic isolated Suction pressure For use with Sensata 2CP5 49 200 psia absolute 0 5V Discharge pressure For use with Sensata 2CP5 47 500 psig rel 0 5V Fan speed for condenser fan controller 0 10V 5mA Not galvanic isolated Compressor speed for test purposes 0 2 5 8 7V Off 25 87HZ 0 10V 5mA Not galvanic isolated N A N A RS 485 cable for FI communication Half duplex max 100m twisted pair cable grounded shield shunt capacitance lt 50pF m 1000 resistance AWG24 2 1200 termination Receiver impedance gt 12k0 e GND e Data A1 e Data B1 RS 485 cable for display communication LUP200 Half duplex max 100m twisted pair cable 2 1200 termination Receiver impedance gt 12k0 e 12V I limit approx 100mA e GND e Data2 A2 e Data2 B2 10 100 Mbit TIA EIA 568 RS 485 cable for Modbus communication with external controller Half duplex max 100m twisted pair cable 2 1200 termination Receiver impedance gt 12k0 e 12V I limit approx 100mA e GND e Data A e Data B Power for fan speed controller 12V max 500 mA R
14. OUT RE7IN RE7OUT RESIN RESOUT RE9IN RE9OUT KM NZ o AZO REAIN RE4OUT RE3IN RE3OUT RE2IN RE2OUT RE1IN RE1OUT RESIN RESOUT NC RESOUT NC o AO UD E WN DB 0 10V Gnd 1 4 5 6 4 3 CON DU E W N HR Ww N e KA 1 L 0100 ES 2 Gnd EE BMS alarm L1 L2 L3 Display heater Display RS485 1 a Data Data Gnd LUP200 Remove jumper if 1 12VdcOut C using external 2 Gnd N power supply 3 12Vddn 2 CPR 1 capacity Unloader controller 0 100 vue 11 CPR 2 capacity Unloader controller 0 100 CJ Liquid line valve 1 Eft F4 AS F3 TO T T5 t 0 10V cE F5 maa MEM E dg dg Mfan1 rd RK Fog M2 Fan 10H Fan speed 0 10 V kia Ca 1 l E ccce i CN Mfan2 O SS SS SS SS SS O a Fail K M Fan 2 OH Page 1 7 7 VO list for the MC340i Condens ing Unit controller 7 1 Single compressor configuration Type A D S P Analogue Digital Serial Power l O B Input Output Bidirectional I O list LMC340i Condensing Unit controller Single compressor configuration ACIN1A Fan 1 OH DI CN21 1 NG ACIN2A Fan 2 OH DI CN21 3 NG ACIN3A Cpr OH DI CN21 5 NG ACIN4A Low oil level DI CN21 7 NC ACIN5A HP Switch DI CN21 9 NC Unit ON OFF Run DI ACINGA NO External release CN21 11 Alt setpo
15. SIN 1 in 3 Leg i o N RESOUT NC 2 gt gt A BMS alarm Pte 1 RESOUT NG 3 i FA 3l E o 00 m c 0UPiDI porco F3 c Fan speed controller i Siess SE 0 10V A REGINA 1 L L ES EE a NE gt T pu C RE7IN 3 pal N RE7OUT A lo 2 RE8OUT 6 Mcpr vent ra bad Compressor read N RE9OUT 8 P y L M2 Fan 1 OH x 7 Fan speed 0 10 V eer C 1 0 10V LE N ia AAA EE Mian 4 nad 3 M3 l gt Fan 2 OH Page 11 6 5 Wirediagram dual compressors with Fl or step less CR Page 12 L1 L2 L3 PE Y G F1 Q1 vu 00S 230VB 230Vac NB KE O Tr1 Input i C Power 1 AC N input P 2 AC ove 1 5 1 Puc E 1 VAN1 45V Suction Res 2 A1 Signal Pressure 3 Gnd N P E 4 VAN2 5V 1 ER KE bo al 1 Discharge a igna Pressure KE 6 Gnd Tamb 3 Gnd 4 Temp3 C a ee a Room a 5 T 9 Gnd 2 Temp8 Ta E 3 Gnd C N E 5 Temp10 Ext Setadj 0 10V Ss S a 1 DIN1 C Alt Setpoint Jina N 2 DIN2 1 Forced start EEN 2 Fan 1 OH 1 ACIN1A NG 2 ACIN1B Fan 2 OH NB 4 ACIN2B SCPR1 Safety chain CPR1 PER CA SACH C N SCPR2 Safety chain CPR2 2 CO ng TAWA fd 8 ACIN4B HP switch DH Es NG 10 ACINSB Unit On Off External release 11 ACINGA 12 ACIN6B Modbus Master controller E l 1 Gnd C 2 Data N 3 Data 3 4 12Vdc 2 C Ethernet LAN N 3
16. al I O list LMC340i Condensing Unit controller Dual compressor configuration Description ACIN1A Klixon for fan motor 1 overheated KEN Pi CN21 1 NG 230 VAC 15 96 50 60Hz min 5mA ACIN2A Klixon for fan motor 2 overheated Fane On P CN21 3 NG 230 VAC 15 96 50 60Hz min 5mA ACIN3A Security chain compressor 1 SCPR1 DI CN21 5 NO Signal from compressor protection modules i 230 VAC 15 50 60Hz min 5mA ACIN4A Security chain compressor 2 SCPR2 DI CN21 7 NO Signal from compressor protection modules gt 230 VAC 15 50 60Hz min 5mA ACINSA High pressure safety switch signal 1 HP Switch DI CN21 9 NC Activated by shortcutting to ground 230 VAC 15 50 60Hz min 5mA Unit ON OFF DI ACINGA NO Run command On Run Run CN21 11 230 VAC 15 50 60Hz min 5mA Toggle setpoint function for digital input 1 Alt setpoint DI DIN1 NO Signal activated by short circuiting to ground Digital input 1 CN12 1 3 3VDC max 3 3mA 1k0 2 Not galvanic isolated Start a forced start function for digital input 2 NO Signal activated by short circuiting to ground 3 3VDC max 3 3mA 1k0 2 Not galvanic isolated Forced_start DI DIN2 Digital input 2 CN12 1 Page 20 User manual LMC340i I O list LMC340i Condensing Unit controller s Dual compressor configuration Description Reset Password DI Tamb Ambient temperature Troom T Room temperature Tdis Tdis Discharge temperature Tsuc Suction line temper T ature E
17. al of electrical and elec tronic waste the penalties are specified by local waste disposal legislation Page 4 1 1 Installation Before installation the user should be thoroughly familiarized with this user manual especially with purposes installation settings and operation Special care should be taken when installing and con necting external equipment sensor high voltage etc and handling the PCB s correctly according to protection against ESD unauthorized personnel or in case theLMC340i has not Installation of the LMC340i must be performed by authorized personnel only All warranties are excluded in case installation is performed by been correctly installed Electrical plant failures are to be immediately solved even though no immediate danger exists the LMC340i must not be operating 1 2 Safety The LMC340i is not a safety component and VIN cannot be used in medical or life support equipment The LMC340i is not a safety component according to the Machinery Directive Before plant commissioning the service technician shall ensure that personal safety requirements are met in conformity with the Machinery Directive on the basis of safety estimations User manual LMC340i 3 Definitions BMS Building Management System A General Lodam s Condensing Unit Controller LMC340i enable ESD Electro Static Discharge you to gain total control of your condensing unit to deliver AL Frequen
18. application knowhow and allows us to stay at the forefront of climate control innovation And to help ensure comfortable surroundings for humans and reliable protection of valuable goods anywhere in the world Lodam electronics a s Kaervej 77 Tel 45 7342 3737 6400 Sonderborg Fax 45 7342 3730 Denmark lodam lodam com For more information visit www lodam com 28 01 2015 Contents are subject to change without notice
19. cy inverter HW Hardware electroni cooling to one or more evaporators thereby optimizing Ge I O Input output electrical signals your system to save energy time and money Limiter Short form for a limiting function which monitors the operating conditions The Lodam Condensing Unit Controller is designed for Te NE most condensing units with a frequency inverter driven Lodam controllers compressor or with an On Off driven compressor NG Sl NO Normally open relay Some benefits from the LMC340i Condensing unit Pdis Discharge pressure controller Psuc Suction pressure E PWM Pulse Width Modulated Achieve an average value Single compressor controlled by frequency inverter over time equipped with unloader or in On Off operation E5485 EE SW Software Dual compressor equipped with unloaders in On Off operation Tamb Ambient temperature Te Saturated condensing temperature calculated Energy and cost saving through intelligent capacity from the discharge pressure control TO Saturated suction temperature calculated from the suction pressure Eco or low sound fan mode Tdis Discharge pipe temperature Tsuc Suction pipe temperature Compressor protection year data log Full graphical colour display A Condensing unit kit from Lodam includes TLodam condensing unit controller LMC340i with Op tion board for extra I O LOM301 and Lodam Ethernet Module LOM320 Remote monitoring through a web interface
20. ee 0 10V e C RESIN 1 Y mM cc cH ege ee e e Sa E C RE7IN 3 e N RE7OUT 4 l FE 2 RE8IN 5 ll 2 RESOUT 6 d en EES RESIN 7 y S RE9OUT 8 M Fan OU Nag PU Fan speed 0 10V e C 1 N dis SEENEN SEENEN Mfan2 Gnd 3 e Pd Na 4 7 7 f M3 l Fan 2 OH Page 15 6 7 Wirediagram dual compressor with one FI and one On Off compressor Page 16 L1 L2 L3 PE F1 o c 1 0 Y G Q1 vu 00S Tri 230VB 230Vac NB Bu am U Input C Power 1 AC N input p 2 AC iid 1 5 Pau 7 1 VAN1 5V Suction E 2 A1 Signal C Pressure rS 3 Gnd N p La 4 VANZ 1 di El 5 A2 Signal 1 Discharge E Pressure Po 6 Gnd Tat 3 Gnd 4 Temp3 C se y keu N TRoom 5 Ts 9 Gnd 2 Temp8 1 EI 3 Gnd C suc D N 5 Temp10 Ext Setadj 0 10v HAN S Alt Setpoint 1 a 5 Bn S a Gn E ee 1 Forced start SC 2 Hes Bem ie Gn Fan 1 OH 1 ACIN1A MB 2 ACIN1B Fan 2 OH MB 4 ACIN2B SCPR1 Safety chain CPR1 maana CA AA soen C N SCPR2 Safety chain CPR2 2 CT fe HES la 8 ACIN4B HP switch MB 10 ACINSB Unit On Off External release 11 ACINGA 12 ACIN6B Modbus Master controller pa j ii 1 Gnd C A a ems s 2 Data N Lo ha PT 3 Datat 3 7 4 4 12Vdc 2 C Ethernet LAN N 3 1 User manual LMC340i LMC340i inn LA k SS CH inn Output 12Vdc Data2 Data2 Gnd C B 0 10V N Gnd 4 E KA Z Co RE6IN REG
21. elay for compressor ON Max 10A 250VAC 10A 30VDC Relay for solenoid valve in liquid line Signal that oil return function is active Max 10A 250VAC 10A 30VDC Page 19 I O list LMC340i Condensing Unit controller Single compressor configuration Description E RE3OUT Relay for oli heater cl neater DO CN14 4 Max 10A 250VAC 10A 30VDC RE40UT Relay for power for compressor protection modules G woe BO CN14 2 Max 10A 250VAC 10 30VDC BMS Alarm DO SOUTNO Reese ID Max 10A 250VAC 10 30VDC CN13 3 REGOUT Relay for fan motor 1 DS NG CN22 2 Max 10A 250VAC SA 30VDC RE7OUT Relay for fan motor 2 piene BO CN22 4 Max 10A 250VAC 5A 30VDC NG DO RE80UT Relay signal that compressor is running for compressor protection device P CN22 6 Max 10A 250VAC 5A 30VDC Relay for an expansion valve release Compressor ready DO RE9OUT Unloader relay when using in compressor with unloader mode for capacity Unloader CN22 8 regulation Max 10A 250VAC 5A 30VDC AC Power supply for the LMC340i For H P CN15 1 2 12 24 VAC 15 30 VDC 4 15 VA Note 1 Power to the compressor must be cut off by exter nal safety chain when high pressure switch is activated Note 2 For the digital input DINI and DIN2 a galvanic isolated microcurrent relay must be used with a minimum current of 1 mA as the controller outputs 3 3 V 3 3 mA on these terminals 7 2 Dual compressor configuration Type A D S P Analogue Digital Serial Power O B Input Output Bidirection
22. harge on the system Check the sight glass in the receiver if the refrigerant level is suffi cient 6 The connection to the Fl has been interrupted and a restart attempt will be done The alarm 500 FI missing will be in active in this period Check the communication cable to the Fl and the FI 7 The expansion valve is closed and the To limiter pre vents a start Check that the evaporator temperature is ok Check if the expansion valve is operating properly 8 The condensing unit is the coldest place in the system and at low ambient temperatures the refrigerant may stay in the unit and an opening of the expansion valve does not lead to at change in the suction pressure Check that the winter start function is enabled in suction pressure mode 9 The oil level is too low Activate the oil return function The compressor is running long periods at speeds below power frequency 50 H7 60Hz and as a result the oil stays in the evaporator due gas speed below the designed criteria Activate the oil return function 10 A control sensor has a malfunction Check that the control sensor is valid Suction pressure transmitter in User manual LMC340i suction pressure control mode and coldstore temperature sensor in room temperature control mode 11 Only one compressor in dual compressor mode is used The load is too low to start the other compressor and the load levelling has not yet reached the level of switching over to use the other c
23. ight saving time Handling of summertime shift by the real time clock Manual or Auto MET Default Manual Select the line where the setting must be changed with the arrow keys if the line is not highlighted Press the Enter button to edit the selected setting and confirm the new setting with another press on the Enter button Under Installer Settings the advanced setting can be adjusted When all the settings are in place the unit can be started by setting Mode to On in the User menu Settings can also be changed during operation however some changes like changing refrigerant will make the unit stop and reset setpoint to the default setting Please see the Condensing unit user manual for more detailed information J FAQ O The condensing unit does not start A There are several possibilities however the status in formation gives a good hint to what the problem is See Status line on the Main menu 1 Is the external signal set to On The signal must be applied 2 Is the unit in On mode Set the unit in On mode 3 Is there an active alarm that prevents start of the unit Check the alarm list and solve possible alarms 4 There has been an alarm and the unit is in restart wait mode After the restart timeout period of 10 min or 15 min the unit will make a restart attempt again except in case of low oil level alarm Check the alarm list and solve problems if there are any 5 There is not enough c
24. int DIN1 Digital input 1 D CN12 1 NG Forced start DIN2 Digital input 2 D CN12 2 No Reset Password DIN3 H CN12 4 NO DIN4 Not used DI CN12 5 NO Tamb T Temp2 Ambient temperature CN5 2 Troom T Temp3 Room temperature CN5 4 Page 18 Description Klixon for fan motor 1 overheated 230 VAC 15 50 60Hz min 5mA Klixon for fan motor 2 overheated 230 VAC 15 50 60Hz min 5mA Compressor overheated Signal from compressor protection module 230 VAC 15 50 60Hz min 5mA Compressor oil level alarm Signal from compressor protection module 230 VAC 15 50 60Hz min 5mA High pressure safety switch signal 1 Activated by shortcutting to ground 230 VAC 15 50 60Hz min 5mA Run command On Run 230 VAC 15 50 60Hz min 5mA Toggle setpoint function for digital input 1 Signal activated by short circuiting to ground 3 3VDC max 3 3mA 1kQ 2 Not galvanic isolated Start a forced start function for digital input 2 Signal activated by short circuiting to ground 3 3VDC max 3 3mA 1k0 2 Not galvanic isolated Resets passwords when short circuiting to ground for more than 3 seconds 3 3VDC max 3 3mA 1k0 Not galvanic isolated Not used 3 3VDC max 3 3mA 1k0 Not galvanic isolated Ambient temperature Lodam NTC sensor Measurement range 40 C to 130 C Accuracy e 1 C in the range 10 C to 60 C e 3 C in the range 40 C to 10 C e 3 C in the range 60 C to 130 C 2 terminals per i
25. is first The contents of this manual are subject to change without notice Lodam electronics holds the copyright to this user s manual The user shall follow any instructions given in this user manual entirely and not only partly Any non following of this user manual result in exclusion of all warranties guarantees and liabilities Copyright 2015 by Lodam electronics a s All Rights Reserved Disposing of the parts of the controller INFORMATION FOR USERS ON THE 4 CORRECT HANDLING OF WASTE ELECTRI EN CAL AND ELECTRONIC EQUIPMENT WEEE In reference to European Union directive 2002 96 EC issued on 27 January 2003 and the related national legislation please note that 1 WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of sepa rately 2 The public or private waste collection systems de fined by local legislation must be used In addition the equipment can be returned to the distributor at the end of its working life when buying new equipment 3 The equipment may contain hazardous substances the improper use or incorrect disposal of such may have negative effects on human health and on the environment 4 The symbol crossed out wheeled bin shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been intro duced onto the market after 13 August 2005 and that it must be disposed of separately 5 In the event of illegal dispos
26. k colours graphical display 320x240 pixels 135 mm h 150mm w 25mm d Cabinet dimensions Power supply 12 VDC CPU ARM7 processor Operating temperature 20 C 60 C Storage temperature 30 C 60 C Enclosure protection Front IP 66 when mounted accordingly in cabinet1 Other IP 00 Relative humidity 5 95 RH non condensing RS485 ports 1 port USB port 1 mini B connector device mode only for future use Display backlight lifetime 30 000 hours at 20 C and normal brightness Display heater 24 VAC max 150 mA thermo controlled Number of buttons 6 buttons Languages English German French Finnish Spanish Russian and Turkish Cabinet mounting 8 pcs 4 mm screws Max screw in depth 6 mm Max tightening torque 3 Nm Motet Front is IP65 if the LUP200 is mounted with the supplied gasket in a metal sheet cabinet of at least 1 5mm thickness and level accuracy better than 0 1 mm over the entire mounting area Note2 Maximum cable length between the LMC320 and the LUP200 is 100m Ethernet connection 1 10 100 Mbit Note The maximum cable length for a NTC temperature sensor is 30m The cable used for extension should be screened and twisted pair Signal cable should be routed so the influence from the power cables is minimized Page 6 Connections on tne L MC34AOI kit 6 1 Single compressor configuration Fan control power eco 12VPWR G9 2 GND 12VBAT GND
27. l Check and protect oil return Check oil level detector circuit Fan blocked Check cables and fan thermostat Replace fan if neces sary Check cables and signal level and power supply Check potential levels Search alarm messages for failure and eliminate cause Switch of main switch and restart after 2 minutes Check if the fans are operating ok Check if the condenser is blocked dirty Interrupt supply voltage to Fl Wait 10 min Restart Replace Fl or compressor if necessary The capacity of the compressor is too high or too small expansion valve High or low pressure fault check fans and expansion valves Unit restarts when signal is valid again Check temperature and oil level Safety chain for compressor 1 is faulty Check temperature and oil level Safety chain for compressor 2 is faulty Too many successive high pressure faults Unit stops Check injection regulators on the evaporator Check the defrost interval Check injection regulators on the evaporator Check the defrost interval Check injection regulators on the evaporator Check the defrost interval Check injection regulators on the evaporator Check the defrost interval Check injection regulators on the evaporators or adjust settings for detection of multiple times liquid in the discharge line Check injection regulators on the evaporators or adjust settings for detection of multiple times liquid in the suction line Controller W905 W907 W908
28. mm T 1 DIN1 C etpoint 3 Gnd N P C Sege 2 DIN2 1 orced start e 2 Fan 1 OH 1 ACIN1A NG 2 ACIN1B Fan 2 OH 3 ACIN2A NG 4 ACIN2B ANG 1 l LI SE Bx Cpr OH 6 ACIN3B C Grey Blue N Violt D1J OLC K1 Low oil level OLC K1 o Brown range OO O NEO Kater 8 ACIN4B HP switch 9 ACINSA NG 10 ACINSB Unit On Off External release 11 ACINGA 12 ACIN6B Modbus Master controller S 1 Gnd C 2 p SSS SSS SSS 2 Data N 3 RE Vv Oana os 3 Data 3 4 E la mee 2 C Ethernet LAN EE aa EE N 3 1 User manual LMC340i CO DEEN IA A Output Display heater 1 Display RS485 12Vdc 1 12Vdc Gnd 6 Gnd Remove jumper if 1 12VdcOut using external G power supply 3 12Vdcln C Fl Com RS485 CU E v 79 Datal1 2 i c 4 1 Data A EE D was rel 7 ERG 4 5 4 4 Gnd 0 ype LG paga piga aa E pi E EE vue d Gnd 8 NG rr np ggag poo ooo ooo 6 i Te RS485 S ke lL end VARISPEED o TI SES 127 Data 4 typeF3 F4 13 5 PARCO AAA ee AE E vie ch Fl speed 4 S GE E SE EE Fl Ee 4 Gnd 6 R _ SC 0 10V me Ka ni EA meas beds Vin T qe peu ME Dir Vy Wi 1 7 Ol LMC340i NA TY Pa K i M y 3x K 4 RE2OUT RE1IN RE1OUT CI Liquid line valve rini o A AU P LO KM a 230VB RE4IN RE4OUT CPR protect RESIN RE2IN CJ Oil heater C 1 RE
29. nput e Signal e Gnd Room coldstore temperature Lodam NTC sensor Measurement range 60 C to 100 C Accuracy e 1 C in the range 30 C to 60 C e 3 C in the range 60 C to 30 C e 3 C in the range 60 C to 100 C 2 terminals per input e Signal e Gnd User manual LMC340i I O list LMC340i Condensing Unit controller Single compressor configuration Description Tdis Discharge temperature Tsuc Suction line temperature Ext Setadj External setpoint adjustment Psuc Suction pressure Pdis Discharge pressure Fan speed 0 10V FI Speed N A N A FI Com Display LUP200 Ethernet Modbus External master controller Fan control power K1 Compressor FI power LLV Liquid line valve Al Al AO AO AO AO DO DO Temp4 CN5 5 Temp8 CN6 2 Temp10 CN6 5 A1 CN11 2 A2 CN11 5 AnoutO CNA 1 Anout1 CN4 2 Anout2 CN4 4 Anout3 CN4 5 Data1 CN7 2 Data1 CN7 3 GND CN6 8 RS485 Data2 CN7 4 Data2 CN7 5 GND CN7 6 RS485 Ethernet CN31 Data CN32 3 Data2 CN32 2 GND CN32 1 RS485 12PWR CN2 1 GND CN2 2 HET OUT CN14 8 RE20UT CN14 6 Discharge temperature Lodam NTC sensor Measurement range 40 C to 130 C Accuracy e 1 C in the range 10 C to 60 C e 3 C in the range 40 C to 10 C e 3 C in the range 60 C to 130 C 2 terminals per input e Signal e Gnd Suction line temperature Lodam NT
30. ompressor Check also possible alarms for the compressor as there are no restart attempts due to the missing distinction between low oil level and compressor overheat 12 Several temperatures shows 1009C in the display menu The model code is still set to None The controller needs a Model code for configuration of the inputs and outputs Page 25 10 Alarm list and troubleshooting he LMC340i controller is equipped with a failure and alarm diagnoses system There are three alarm levels Warning Alarm and Critical A warning does not stop the unit but affects its temperature control precision An alarm will stop the unit and it will restart after the restart delay A critical alarm will make the unit stop turn on the alarm LED and turn off the CTS relay If the first letter is in uppercase Axxx Cxxx or Wxxx the alarm or warning is still standing and can t be acknowl edged until the problem is solved If the first letter is lower Case axxx cxxx or wxxx the alarm situation is not active anymore and the alarm or warning can be acknowledged by pressing the Enter button There is also a short text to an alarm number On the sample W104 tells that temperature input T3 has an open connection and the problemi is still there since W is in Uppercase The alarm cannot be acknowledged before the connection has been fixed Up to 16 alarms at the same time can be shown 31 01 2010 Alarm list W104 T3 Open A WARNING Page 26 U
31. ooling discharge gas temperature sensor and oil level C513 ES t00 hol E PALA Pa wis ta voltage of FI for 10 min Restart C514 FI has unpermitted under voltage Supply voltage too low C515 FI has unpermitted over voltage Supply voltage too high A516 Phase failure at FI Check supply voltage and all 3 phases at FI input ost FI overtoadec ee C518 Switching frequency of FI too high Check supply voltage and data cable to Fl Page 27 C520 C521 C564 W574 W579 W591 W595 W597 A519 A556 W572 W583 W588 W590 W596 C599 FC over speed FI Auto tune Error FI Brake Resistor FI overloaded Voltage of the intermediate circuit of the FI too low or opera tion outside of the application limits of the compressor Phase failures at FI FI overloaded too hot Internal failure of the FI Number of faults has exceeded critical threshold Fl speed is above setpoint Check compressor valves a broken valve can give this alarm After replacement of a Fl the auto tune failed Check wiring to the com pressor motor The temperature in the F3 Fl is too high Power off for 5 min and see if it settles Check refrigerant charge as this is used for Fl cooling Interrupt supply voltage to Fl Wait 5 min Check power out connector of Fl and cooling of Fl Restart Replace Fl or compressor if necessary Check supply voltage on input of Fl and make sure that operation is within the application limits of the compressor
32. or enable disable functions of the LMC340i 8 Using the display and the menu system The buttons on the user panel have the following func tions LUP200 buttons pom Esc button Cancel editing of a setting Return to Ese higher level menu Ft Left arrow Select icon to the left AZ Right arrow Select icon to the right Lo j Lea Up arrow Select menu item one step up Increase 4 value in editing mode Holding the button down in editing mode will increase step speed GEN Down arrow Select menu item one step down Wy Decrease value in editing mode Holding the button down in editing mode will increase step speed Enter button Open sub menu under the icon or lines ending with a gt Start editing mode The value on the line is shown with inverted colours 8 2 Main menu Password User E Installer R404A 10 C Normal Refrigerant Setpoint Status User manual LMC340i When the user or installer password has been entered the respective icon appears By moving the cursor to the wanted icon and pressing Enter key the submenus are shown Setpoint shows the actual setpoint Capacity O 100 is the actual cooling capacity needed at the moment Refrigerant is used refrigerant of the installation If the alarm icon is flashing an alarm is active If the icon is steady an alarm is not active anymore but not yet unac knowledged Depending on the configuration there might be up to
33. ser manual LMC340i 10 1 Alarm list and trouble shooting The severity is indicated by the letter in front of the number Warning Alarm and Critical Communication between display and controller faulty or Check cable and connector LMC340i CN7 1 4 5 6 lt gt LUP200 interrupted Controller LED must be blinking Temperature and pressure sensors Check cables and connector LMC340i CN5 1 6 Check resistance of Requesting data Rea Glen of discharge gas temperature sensor open or short sensor according to table NTC temperature resistance table W102 Check cables and connector LMC340i CN5 2 3 Check resistance of W103 Circuit of ambient temperature sensor open or short circuit sensor according to table NTC temperature resistance table Check cables and connector LMC340i CN5 4 9 Check resistance of d d Circuit of cold store temperature sensor open or short circuit sensor according to table NTC temperature resistance table W106 Circuit of discharge gas temperature sensor open or short Check E E LMC340i CN5 1 6 Check resistance of W107 circuit sensor according to table NTC temperature resistance table W114 Circuit of suction line temperature sensor open or short en cables and connector Check resistance of sensor according to Als eu NTC temperature resistance table C122 ME SA Check cables and connector LMC340i CN11 1 2 3 C123 Circuit of low pressure transmitter open or short circuit Replace low pressure transmitter W124
34. three icons more in the lower menu Here are Second setpoint and Week program active 3 3 Password menu Enter the password for getting access to the wanted level of information Default passwords 6 Opens access to user level information 7 Installer settings are now available Password Page 23 8 4 Commissioning on site When all the electrical connections have been established the piping is done and refrigerant is charged the unit is ready to start The controller basically only needs confirmation or adjust ment of the following information to start operation Refrigerant default is R404A Temperature control mode default is Suction pressure Setpoint default is 10 C in Suction pressure mode Fan mode default is Eco mode All basic commission settings are made in the Installer Basic settings menu R404A Suc Pressure 10 0 C Fan operation mode Eco Refrigerant Control mode Suction pressure setp Manual Daylight saving time Refrigerant Refrigerant selection R22 R134a R404A R407C R410A R507A Default is R404A Control mode Temperature control mode Suction pressure or Room temperature Default is Suction pressure Suction pressure setp Set the setpoint for Room temperature or Suction pressure control mode Range 45 C to 30 C Default 2 C Fan operation mode Set the regulating mode of the fans Eco or LowSound Default is Eco Page 24 Dayl
35. ts Datalog Real time clock 12VDC output 15 30VDC 12 24VAC 50 60 HZ typical 4 VA max 15 VA LMC340i ARM7 processor Ethernet connec tion ARM9 20 C 60 C 30 C 60 C IP20 pollution degree 2 5 95 RH non condensing 3 for Lodam NTC sensors 40 C to 130 C 1 C accuracy 1 is used for 0 10V input Remaining tempera ture inputs are not used 2 Al and Al2 0 5V with 5 Volt supply for radiometric pressure transmitters Rin 25KO Use Sensata 2CP 49 for Psuc and Sensata 2CP 49 for Pdis or equivalent 2 not galvanic isolated O 5V with pull up resistor 6 180 265VAC digital input Double isolation to low power side 4 AnOut0 to AnOut3 0 10V 3 Rin gt 10kOhm max frequency 1Hz not galvanically isolated 9 RE1 to RE5 10A 24VDC 10A 250VAC max 250VAC isolation between relays RE5 is a toggle relay max isolation 400VAC between relays DEG to REY 10A 24VDC 10A 250VAC resis tive max 3A inductive load double isolation to low power side max 250VAC isolation between relays 2 with common 12V 100mA output 1 used for display and 1 used for Fl 1 with optional 120 O termination resistor used for Modbus 1 device mode mini B for software update and communication with a PC 2 USB host A connector for software update and future use Up to 1 year capacity With 1 year battery back up Up to 500 mA User manual LMC340i Technical specification LUP200i Display 262
36. xt Setadj External setpoint T adjustment Psuc Al Suction pressure Pdis Al Discharge pressure Fan speed 0 10V AO Fl Speed AO CPR1 CAP AO CPR2 CAP AO FI Com S DIN3 CN12 4 Temp2 CN5 2 Temp3 CN5 4 Temp4 CN5 5 Temp8 CN6 2 VTemp10 CN6 5 A1 CN11 2 A2 CN11 5 AnoutO CN4 1 Anout1 CN4 2 Anout2 CN4 4 Anout3 CN4 5 Data CN7 2 Data1 CN7 3 GND CN6 8 RS485 Resets passwords when short circuiting to ground for more than 3 seconds 3 3VDC max 3 3mA 1k0 Not galvanic isolated Ambient temperature Lodam NTC sensor Measurement range 40 C to 130 C Accuracy e 1 C in the range 10 C to 60 C e 3 C in the range 40 C to 10 C e 3 C in the range 60 C to 130 C 2 terminals per input e Signal e Gnd Room coldstore temperature Lodam NTC sensor Measurement range 60 C to 100 C Accuracy e 1 C in the range 30 C to 60 C e 3 C in the range 60 C to 30 C e 3 C in the range 60 C to 100 C 2 terminals per input e Signal e Gnd Discharge temperature Lodam NTC sensor Measurement range 40 C to 130 C Accuracy e 1 C in the range 10 C to 60 C e 3 C in the range 40 C to 10 C e 3 C in the range 60 C to 130 C 2 terminals per input e Signal e Gnd Suction line temperature Lodam NTC sensor Measurement range 60 C to 100 C Accuracy e 1 C in the range 30 C to 60 C e 3 C in the range 60 C to 30 C e 3 C in the
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