Utica Boilers UB95M-200 Parameter Guide
Contents
1. Blank Setting ture is at minimum V PARAMETER REFERENCE TABLE Continued Boiler Display Gascom Boiler Display Position Z ete ERE EE Initial Iniialreading m l sa 1n SN UR After 2 to 3 seconds Setting T4 Frost Protection 32 off 34 140 F 32 off 34 140 T Parallel Shift Initial reading T4 Correction 8 to 10 F 8 to10 ESL e After 2 to 3 seconds Seting After 2 to 3 seconds Initial reading 1 2 0 to 144 F 0 to 144 After 2 to 3 seconds Setting Initial reading 1 T Blocking pope a 3 d6 Setting Initial qM 0 Booster Time an Pa St 0 to 30 After 2 to 3 seconds minutes 2250 to 6000 2250 to 6000 Initial reading After 2 to 3 seconds Setting Initial reading After 2 to 3 seconds Maximum fan speed CH 22 to 60 100 s of rpm Maximum fan speed DHW 22 to 60 100 s of rpm B g p Description When outside temperature drops to this number the boiler circulator will run con stantly Use this parameter to modify the outside temperature reading if needed to correct for outside sensor location Use only if sen sor is providing a false reading When the target outlet water temperature is less than this setting the boiler shuts off f a call for heat causes the boiler to re main at high fire for a time equal to Param eter 11 the control module increases out let water temperature setpoint by 18 F For each additional Para2. Space heating differentials parameters 22 and 23 The term differential is also referred to as hysteresis Parameter 22 is the On differential The water tem perature must be at least Parameter 22 less than the calculated setpoint temperature for the boiler to turn on Parameter 23 is the Off differential When the boiler is firing the water temperature must rise at least Param eter 23 above the calculated setpoint temperature for the boiler to turn off See Figure 4 for an explanation of the On and Off differentials of the boiler control Note that the differ entials are greater when a heat call starts or stops as shown The differentials decrease with time until they equal Parameters 22 and 23 Setting OFF differential parameter 23 The factory default setting for Parameter 23 is 4 F This works well for most applications For low mass systems fan coil performance can be improved by increasing Parameter 23 This compen sates for the quicker system temperature response of low mass systems When setting Parameter 23 make sure that Parameter 23 plus Parameter 4 is not over 193 F to avoid possible nuisance lockouts Figure 4 PARAMETERS 22 AND 23 SPACE HEATING ON AND OFF DIFFERENTIALS Hysteresis Differential increases when burner turns on and decreases over time T1 set OFF diff OFF diff par 23 until it equals parameter 23 Outlet water temperature T1 y Burner OFF
3. hysteresis This is the temperature the boiler water must not must rise above setpoint temper ature to turn the boiler off After 2 to 3 seconds As outlet temperature increases the con trol module reduces boiler input If tem perature continues to rise with boiler with minimum input the boiler will shut down when the temperature reaches setpoint temperature plus Parameter 23 n wo Blank Blank Setting Differential may also be referred to as hysteresis F 0 to 18 F 0 to 18 Initial reading 2 to 54 F 2 to 54 2 4 After 2 to 3 seconds F Initial reading P l le2 s5 After 2 to 3 seconds 6 to 54 6 to 54 Blank Blank Setting This is the temperature boiler water must drop below setpoint temperature to turn the boiler on Boiler outlet water setpoint temperature is 180 F during DHW mode Differential may also be referred to as hysteresis This is the temperature boiler water must rise above setpoint temperature to turn the boiler off As outlet temp increases the control module reduces boiler input If temperature continues to rise with boiler at minimum input the boiler will shut down when the temperature reaches setpoint temperature plus Parameter 23 V PARAMETER REFERENCE TABLE Continued Gascom Boiler Display Position Position Description Software Display 1st and ord am Maren Differential may also be referred to as nitial
4. STBY Then repeat step 2 again to step 12 to exit De pressec EVERY arameter change The change is ac 5 Press the STEP button once Display will show C copisdit Hedisplayelinia Beer 7 and a random number 6 Adjust the number displayed to C 05 by using the and buttons After making c anges to pa 7 Press the STORE button id uua the changes made on the last amp n page of this manual and leave a copy with the boiler for future reference Ei exit icobey mode after 10 minutes of no activity 8 Press the MODE button several times until PARA is displayed V PARAMETER REFERENCE TABLE Boiler Display Gascom p Display EEA Description Software Display T3 is the DHW temperature by an immer sion sensor DO NOT CHANGE this parameter from the factory setting Boiler outlet water temperature setpoint in DHW mode is de termined by adding Parameter 1 to Param eter 33 Storage DHW 68 to 158 F 68 to 158 Instantaneous 104 to 150 DHW 104 to 150 Setting If applied for instantaneous DHW opera tion not recommended set Parameter 35 for the correct configuration Eu DHW DHWOFF Parameter 2 determines whether DHW heating is activated The boiler will not op DHW wow erate in DHW mode if this parameter is set to 0 or 3 DHW System DHW DM Blank Blank Value WARNING It is not recommended to pump set this parameter to eith
5. not adjusted T1 TOP L No higher that 180 F ANS 4 T Blocking Parameter 10 Boiler shuts OFF when T1 Set is less than T Blocking T1 Foot Parameter T4 Maximum T4 Minimum Parameter 7 Parameter 6 5 E 3 E o I E o Q 5 o a o o 5 o o o Warmer A Outside Temperature F gt cooler PARAMETER DETAILS NUMBER NAME SETTING RANGE T Blocking 60 F 32 140 F or 32 for Off side temperature T1 Top Parameter 4 is the outlet water temperature the boiler tries to maintain whenever the outside tem Ill PARAMETER EXPLANATIONS perature is less than T4 Minimum Parameter 6 Figure 2 T1 Foot Parameter 9 is the outlet water temperature TYPICAL RESET CURVES the boiler tries to maintain whenever the outside tem Outdoor Reset Example A perature is higher than T4 Maximum Parameter 7 M R Limit When outside temperature is between T4 Maximum and T4 Minimum the control calculates a value for T1 R Limit T1 Top Set at 180 F iu Setpoint T1 Set between T1 Foot and T4 Top E N The boiler may not operate all the way down to T1 foot E E Parameter 10 T Blocking sets a minimum operating E 2 E outlet water temperature If the calculated setpoint T1 E s set is less than T blocking the boiler shuts off 2 T Blocking Set at 100 F 5 Set Parameters 4 to 7 as needed f
6. 0 Boost operation In outdoor reset operation outdoor sensor connected the boiler control automatically increases the target out let water temperature if a call for heat exceeds a time equal to Parameter 11 factory default of 30 minutes At each interval of Parameter 11 of a continuous call for heat the control module increases the target tempera ture by 18 F See Figure 3 The control module will continue increasing target temperature until it reaches the value set in Parameter 4 T1 Top When the call for heat ends while target temperature is boosted the target temperature drops about 2 F for each minute the thermostat is open 5 Range 1 30 minutes 6 Factory Default 30 minutes 7T Deactivate automatic temperature boost by setting to 9 MAXIMUM FAN SPEED A WARNING Fan speed must be set within the limits sup plied by the factory See the Default Param eters Table in Section Il Setting limits above or below these factory defaults would increase or decrease boiler firing rate beyond the ac ceptable limit resulting in potential for severe personal injury death or substantial property damage Parameters 13 and 15 can be set to limit the maximum boiler firing rate Boiler firing rate is proportional to the fan speed so reducing the maximum fan speed reduc es maximum input Reducing maximum fan speed will be helpful for sys tems on which the boiler is oversized for either sp
7. CONTROL PARAMETERS DEFAULT REV C PARAMETER SETTINGS ON GASCOM SOFTWARE AND BOILER DISPLAY DO NOT CHANGE ANY PARAMETER UNLESS THE APPLICATION REQUIRES SPECIAL SETTINGS PARAMETER DESCRIPTION GASCOM DISPLAY T3 Set DHW DHW System n D013 CH System c ene T1 Top CH Mode T1 Foot CH Mode T4 Frost Protection T4 Correction 0 30 Minutes 1 F F F 30 Minutes F F F 10 Booster Time 13 15 17 Minimum Fan Speed 2250 rpm Maximum Fan Speed CH 6000 rpm Maximum Fan Speed DHW 6000 rpm 19 Ignition Fan Speed 3500 rpm o 0 CH Postpump Time 21 DHW Postpump Time 24 DHW Modulation Hysteresis On 25 DHW Modulation Hysteresis Off iO2Seconds N CH Modulation Hysteresis On 23 CH Modulation Hysteresis Off 26 DHW Detection Hysteresis On 27 DHW Detection Hysteresis Off 28 CH Blocking Time 10 2 Seconds DHW gt CH Blocking Time Modulate Back Difference T1 T2 RMCI Address sw 3 Bil 2 3 T Plus Setvalue Additional For DHW 3 34 2nd CH Circuit 1st Digit 2nd CH Circuit Off 34 CH Type 2nd Digit Room Thermostat 5 DHW 3 Way Valve Pump 1st Digit Hot Water Pump tui Storage Tank w out Tank 35 DHW Type 2nd Digit TT NTC8 6 Manual Fan Speed 37 PWM Pump Level 1st Digit 37 PWM Pump Level 2nd Dig 3B T Set Hold Boier Warm a9 T Top For and CH Oreul 3 On oF 0 fe SE 0 O 0 fe SE SE SE oF er SE 0 01 0 3 3 o 0 T Foot f
8. O 10 V input to con trol module not currently supported 3 0 10vanalog on MCBA temperature 34 DO NOT SELECT Central heating boiler 2nd CH Type 0 to 6 outlet temperature controlled with O 10 diti see right Digit Digit vdc input to control module Not currently igit Blank Blank 1 2 supported 4 0 to 10 V analog on HAM capacity Select this value when using HAM module to interface with multiple boiler controller See HAM instructions 5 0 10 V analog on HAM temperature DO NOT SELECT Central heating boiler outlet temperature controlled with O 10 vdc input HAM module but controls tem perature setpoint See HAM instructions 6 control DO NOT SELECT Cen tral heating mode controlled with input to control module not currently supported V PARAMETER REFERENCE TABLE Continued Boiler Display Gascom Boiler Display Position Description Software display 1st 2na ara ath First digit 8 way valve Control module readout Initial reading P 35 indicates Parameter 35 after 2 to 3 second change the parameter setting Position 1 2 blank Position 3 Parameter 35 first digit 3 way valve or pump Position 4 Parameter 35 second digit DHW type 0 to 2 DO NOT CHANGE Parameter 35 first E hey valve see right dps 2 digit 3 way valve operation is not currently git supported e 0 3 way valve normally open Switch to DHW from CH with normally open 3 way valve 1 h
9. THE FOLLOWING Revise boiler control parameters only if you fully un A WARNING derstand the purpose and result of the changes and J the advice of Technical Support Tampering without Failure to comply with the following could cause equipment performance problems resulting in potential severe personal injury death or sub stantial property damage understanding the control settings in this manual will void the warranty and can result in unreliable op eration with possible severe personal injury death or substantial property damage Parameter 2 Do not set for continuous DHW pump DEFAULT PARAMETER SETTINGS Parameters 13 and 15 Do not set higher than values in the Default Parameter Settings Table on the next 1 The Default Parameter Settings table on the next page page lists the factory default settings for this boiler at stan sparameters 17 and 19 Do not set lower than values dard altitudes up to 2000 feet When in doubt always in the Default Parameter Settings Table on the next restore parameters to the default settings listed page WHEN TO CHANGE PARAMETERS 1 Factory default settings will work for most applications There are situations however for which changes are desirable or even mandatory ex multiple boiler applica Parameters 24 25 26 and 27 Do not change from tions using the Honeywell AM HAM module default settings 2 Default boiler settings are satisfactory for most high e Para
10. during space heating operation Parameter 13 to limit the maximum boiler input Parameter 15 DHW max fan speed Acceptable Range for Natural Gas and LP 2250 to 6000 rpm 22 to 60 on boiler display NOTE Boiler display shows fan speed in hundreds of rpm A value of 48 would mean a speed of 100 x 48 or 4800 rpm Factory Defaults See the Default Parameters Table in Section II of this manual e f the boiler is oversized for domestic water heating you can reduce the maximum fan speed during DHW opera tion Parameter 15 to limit the maximum boiler input MINIMUM FAN SPEED PARAMETER 17 The fan speed must not be set below the value as supplied from the factory see the Default Parameters Table in Section Il This would reduce boiler firing rate below the acceptable limit resulting in potential for severe personal injury death or substantial property damage PARAMETER 17 sets the minimum fan speed Boiler firing rate is proportional to fan speed so increasing the minimum fan speed increases the minimum firing rate low fire Parameter 17 sets the minimum fan speed for both DHW and space heating modes Set parameter 17 to 3 200 for altitudes above 2 000 ft Acceptable Range for Natural Gas and LP 2250 rpm 22 on boiler display NOTE Boiler display shows fan speed in hundreds of rpm A value of 48 would mean a speed of 100 x 48 or 4800 rpm Factory Defaults See the Default Parameters Table i
11. limit T1 set calculated setpoint temp T1 set ON diff ON diff par 22 Differential increases when burner turns off and decreases over time until it equals parameter 22 Call for heat ON Burner Param 23 Param 23 ys Burner ON limit gt Time minutes IV HOW TO SET PARAMETERS BOILER DISPLAY Using the six buttons on the front of the boiler be ow and the proper code the boiler can be both monitored and modified using the digital display Perform the following steps with the boiler powered on and in standby STBY mode 1 Press and hold the STEP button 9 Press the STEP button several times until P XX is 2 While holding the STEP button down press and hold displayed The XX represents the parameter that will be the MODE button changed The parameter s value will then be displayed 3 Hold both buttons down together for several seconds Note for parameter 1 4 display will read 1 then the param until CODE appears on the display eter setting 4 Release STEP and MODE buttons Code will stay lit on on the displav 10 Use the or buttons to set the desired value NOTE If CODE is not displayed after several seconds 11 Press the STORE button Steps 9 11 can now be release STEP and MODE buttons and press MODE several repeated for additional parameter changes or continue times to return display to
12. 95M 200 GAS FIRED DIRECT VENT MODULATING HOT WATER BOILER Revise boiler control parameters only if you fully understand the purpose and result of the changes and on the advice of Technical Support Tampering without understanding the control settings in this manual will void the warranty and can result in unreliable operation with pos sible severe personal injury death or substan tial property damage This document must only be used by a qualified heating installer or service technician Read all instructions including the Installation Manual P N 240006103 the Control Manual and Oper ating Instructions P N 240006104 the User s Information Manual P N 240006106 and this Parameter Guide before attempting to program the control and be sure to perform all steps in the order specified Failure to comply could re sult in severe personal injury death or substan tial property damage EN T y with local re dienomis and with the Na tional Fuel Gas Code ANSI Z223 1 for U S installations or CSA B149 1 or B149 2 for Canadian installations DO NOT DESTROY THESE INSTRUCTIONS Please read carefully and keep in a safe place for future reference P N 240006105 Rev B 06 08 95 200M GAS FIRED DIRECT VENT MODULATING HOT WATER BOILER PARAMETER GUIDE Printed in USA Made In USA TABLE OF CONTENTS Safety Symbols and Warnings 3 Il Overview of Control Paramete
13. HW call DHW to CH onds After 2 to 3 seconds is satisfied and a central heating call starts Seconds the boiler will shut down and wait the block Blank Blank Setting pa ing time before starting AR RIEN If the difference between boiler outlet wa T1 T2 dif ter temperature T1 and return tempera 31 ference for 10 to 72 10 to 72 ture T2 is larger than parameter 31 the modulating ne 2to3 cL boiler is forced to low fire back Blank Setting DO NOT set higher than factory defaults E 4 Initial reading RMCI RMCI off RMCI off 3 DO NOT CHANGE this parameter It is 32 After 2 to 3 seconds intended for use with an RMCI 1400 inter address 0 to 7 B87 0to 7 face device currently not available address address Blank Setting Initial reading Parameter 33 sets the target boiler out pp 3 3 let water temperature in DHW mode Add T Plus parameter 33 to parameter 1 to determine 33 setvalue eios After 2 to 3 seconds the target temperature o addition for e Factory default is 150 F for parameter DHW Blank Setti 1 and 30 for parameter 33 for a total of ni aang 180 F as the DHW boiler outlet water tem perature Initial reading Parameter 30 is the minimum wait time af ter a DHW call before the boiler will start 3 Bigdfiydto ti 306sse See TP ou 6 V PARAMETER REFERENCE TABLE Continued Boller Display Gascom Boiler Display Position Description Initial reading First digit 2
14. Maren hysteresis This parameter has no effect unless a Driv detec DHW sensor is used not recommended tion differen 2 to 54 F 2 to 54 After 2 to 3 seconds use an aquastat instead tial ON This is the temperature the DHW water Blank Blank Setting must drop below DHW setpoint tempera ture to turn the boiler on Differential may also be referred to as Initial reading hysteresis DHW detec 2 This parameter has no effect unless a DHW sensor is used not recommended 27 tion differen 2 to 54 F 2 to 54 After 2 to 3 seconds use an aquastat instead tial OFF This is the temperature the DHW water Blank Blank Setting must rise above DHW setpoint tempera ture to turn the boiler off Initial reading Parameter 28 is the minimum time be 0 to 30 tween consecutive central heating cycles times 10 2 After a call for heat is satisfied the boiler seconds After 2 to 3 seconds will remain off for at least the blocking time Setting before starting another cycle Initial reading Parameter 29 is the minimum time between 0 to 30 2 consecutive DHW heating cycles After the pg Blocking time Oto 306 sec dimes 10 2 e ee DHW call for heat is satisfied the boiler will DHW onds After 2 to 3 seconds Blocking time 0 to 306 sec 28 CH onds seconds remain off for at least the blocking time be Setting fore starting another DHW cycle 30 times 10 2 on a call for central heating If a D
15. NCE TABLE Continued Boiler Display Gascom Boiler Display Position Software Display 2nd 3rd 22 to 60 225010 6000 055 of rpm After 2 to 3 seconds Blank Setting Initial reading 1 PE OE REC URCN CUR 3000 to 3600 100 s of rpm After 2 to 3 seconds Blank Initial reading le After 2 to 3 seconds Initial reading Description Use this parameter to increase the mini mum input of the boiler Increasing fan speed increases boiler input decreasing fan speed decreases input NEVER set outside values shown at left Use this parameter to increase the mini mum input of the boiler during ignition Increasing fan speed increases boiler in put decreasing fan speed decreases input SET ONLY at recommended default values Setting 0 10 seconds 1 to 99 minutes Parameter 20 is the length of time the boiler circulator continues to operate after completing a central heating cycle Setting 0 to 30 times 10 2 seconds Parameter 21 is the length of time the boiler circulator continues to operate after completing a DHW cycle 0 to 306 seconds After 2 to 3 seconds Blank Setting Initial reading 0 to 36 0 to 36 After 2 to 3 seconds Blank Setting Differential may also be referred to as hysteresis This is the temperature the boiler water must drop below setpoint temperature to turn the boiler on Differential may also be referred to as Initial reading
16. ace heating or DHW or both Maximum fan speed can be set separately for space Figure 3 PARAMETER 11 Automatic Supply Temperature Booster Operation 200 M R Limit 195 A R Limit Setpoint will rise to at most 190 F or T1 top Call for Heat Ends If call for heat ends While T1 is boosted setpoint drops 2 F per minute of off time Setpoint Temperature T1 F Calculated setpoint temperature 180 F Duration of Continuous Call for Heat Minutes Setpoint temperature increases 18 F for each Parameter 11 duration that boiler continues at high fire This example shows Parameter 11 at the factory default setting of 15 minutes Call for Heat Ends Temperature Boost Operation Typical In this example the boiler is operating in outdoor reset mode with a calculated setpoint tem perature of 130 F The call for heat has lasted more than 10 minutes value of Parameter 11 and supply temperature boost has occured Ill PARAMETER EXPLANATIONS heating and DHW using Parameters 13 and 15 Parameter 13 space heating max fan speed Acceptable Range for Natural Gas and LP 2250 to 6000 rpm 22 to 60 on boiler display NOTE Boiler display shows fan speed in hundreds of rpm A value of 48 would mean a speed of 100 x 48 or 4800 rpm Factory Defaults See the Default Parameters Table in Section II of this manual e f the boiler is oversized for space heating you can reduce the maximum fan speed
17. ently supported After 2 to 3 seconds V PARAMETER REFERENCE TABLE Continued Gascom Boiler Display Position Software Display 1st 2nd 3rd 4th Initial reading e 3 8j After 2 to 3 seconds Setting Initial reading Pe se he After 2 to 3 seconds aeee PT 1 2 I Is PT Jee 1 auto op Manual fans eration 1 auto peed gi pg 6 eTit PWM level CH pump 1to4 pump speed 32 feature off 32 feature off 32 to 176 F 32 to 176 T6 Top 2nd CH circuit 50 to 176 F 50 to 176 T6 Foot 2nd CH circuit 50 to 70 F After2to3seconds 2 to 3 seconds Initial NEN 2 to 54 F 2 to 54 After2to3seconds After2to3seconds to 3 seconds Sc Initial NEN After2to3seconds 2 to 3 seconds 0 1 2 or 3 see right 0 to 3 0 feature off 0 or 1 1 Blank Blank iu PA feature on T6 Differential 2nd CH circuit Special pump CH DHW Low Off cycle Description Use this parameter if desired to manually set the boiler at a fixed input The manual operation will only continue for 15 minutes The control module then returns to auto matic operation This function is not currently supported Parameter 38 sets minimum standby tem perature for boiler If boiler outlet or return water temperature is sensed at less than T Hold the boiler fires without pump operat ing to bring temperature up to T Hold This function is no
18. er 2 or 3 con constant tinuous DHW pump This could result in DHW ON a hazardous condition because it causes pump constant circulation between the boiler and constant the DHW heater Setting times Outside reset outside sensor connected Parameter 3 determines whether the boil er will operate in central heating mode xi TH Select 1 to cycle the boiler circulator on CH System orter pump Blank Blank Value central heating calls constant d ON e Select 2 or 3 to maintain constant boil boiler pump er circulation operation constant Constant Boiler Temperature operation outside sensor not connected T1 Top is the target outlet water temperature at all T1 Top 120 to 194 F 68 TO 182 T1 Top is the maximum water temperature based on outdoor air temperature Initial reading e T1 Foot applies only in outdoor reset op 5 eration 56 edes es After 2 to 3 seconds e T1 Foot is the minimum target tempera Setting ture for all outside temperatures Initial reading e T4 Minimum applies only in outdoor reset T4 Minimum 4 to 50 4 to 50 After 2 to 3 seconds e T4 Minimum is the outside temperature at which the target outlet water temperature Blank Blank Setting is at maximum Initial reading e T4 Maximum applies only in outdoor re T4 Maximum 60 to 78 F 60 to 78 After 2 to 3 seconds T4 Maximum is the outside temperature at which the target outlet water tempera Blank
19. fteen Suggested outdoor reset settings minutes default setting the control boosts the target temperature until the supply water meets the system s T1 Top Set to the required supply water temperature needs when outdoor temperature is at or below ODT T1 Foot Set so the drop in supply water temperature results in the best match of heating unit output to heat loss as the outdoor temperature rises Even if the reset parameters are optimized for the ap plication use of setback thermostats or the need for oc casional cold start operation will require faster recovery than provided by the normal calculated supply water T4 Maximum Set to the balance point temperature for temperature because the curve assumes steady state the building typically 65 F or lower operation e T4 Minimum Set to ODT Boost will not call for supply water temperature setpoint Ill PARAMETER EXPLANATIONS 1 greater than the value of Parameter 4 T1 Top There is no concern that temperature boost would supply water too hot for low temperature systems such as slab type radiant heating On hybrid systems with finned tube radiation and radiant slab provide additional low temperature protection for the radiant portion of the system because Parameter 4 T1 Top is likely to be set higher than on a radiant only system IMPORTANT Many slab type radiant systems won t require boost This function can be dis abled with a parameter 11 setting of
20. meter 11 time the heat call continues the set point is increased another 18 F never exceeding Parameter 4 Parameter 23 hysteresis off To deactivate booster operation set this parameter to 0 The value of Parameter 12 reduces the calculated setpoint temperature by the amount set when the call for heat is from outdoor temperature We recommend not changing this param eter from the factory default of O no paral lel shift Use this parameter to change the maxi mum boiler input for central heating CH Never above default value When in central heating mode the boiler fan speed will not exceed this setting In creasing fan speed increases boiler input decreasing fan speed decreases boiler in put Never set below low fire setting or above maximum value shown at left Use this parameter to change the maxi mum boiler input for domestic water heat ing DHW NEVER above default value Boiler fan speed will not exceed this set ting in DHW mode Increasing fan speed in creases boiler input decreasing fan speed increases fan speed decreases input NEVER set below low fire setting or above the maximum value shown at left Minimum fan speed DHW Ignition fan speed Postpump time CH Postpump time DHW CH Modula tion differen tial ON CH Modula tion differen tial OFF DHW Modu lation differ ential ON DHW Modu lation differ ential OFF V PARAMETER REFERE
21. meter 32 Do not change from value of 0 mass systems radiant slab cast iron radiators most Parameter 33 Leave setting at 30 F for storage tank C e 2 PARAMETER CHANGES si udi iid Parameter 34 First Digit Do not change from value of Outdoor Reset Applications Outdoor reset operation 0 can sometimes be improved by adjusting parameters 4 Parameter 34 Second Digit Set only at 0 2nd CH 5 6 and 7 Parameters 9 10 and 11 might also be modi circuit off unless using a Honeywell AM module With fied See Parameter Explanations for more information on HAM set second digit to 4 0 10 V analog on HAM outdoor reset capacity High Altitude Installations To ensure proper operation Parameter 35 Both Digits Do not change either digit parameter 17 must be set to 3 200 RPM in all installations from default setting at or above elevations of 2 000 feet Failure to do so could result in potential for severe personal injury death or sub stantial property damage Refer to Section IV of this manual for instructions on how to change parameters Parameters 37 39 40 and 41 Do not change For future use only Parameter 42 First Digit Do not change from default value Fan Coil Systems Systems using fan coil units respond to heat input rapidly and may require larger differential settings parameters 22 25 for best performance See Parameter Explanations for more information on control Il OVERVIEW OF
22. n Section II of this manual BOILER FIRING RATE VS RPM Rae BIUH RPM Boller Display o mae seo 3 s 1906 8 so 000 588 L m we 0 8 NOTE Results may vary depending on altitude of in stallation gas calorific value and vent length IGNITION FAN SPEED PARAMETER 19 A WARNING The fan speed must not be set BELOW the value as supplied from the factory see the Default Parameters Table in Section Il This would reduce boiler firing rate below the acceptable limit resulting in potential for severe personal injury death or substantial property damage Parameter 19 sets the fan speed during ignition Boiler firing rate is proportional to fan speed so increasing the minimum fan speed increases the minimum firing rate low fire IMPORTANT Parameter 19 should only be changed where required for high altitude applications Acceptable Range for Natural Gas and LP 3000 to 3600 rpm 30 to 36 on boiler display NOTE Boiler display shows fan speed in hundreds of rpm A value of 48 would mean a speed of 100 x 48 or 4800 rpm Factory Defaults See the Default Parameters Table in Section II of this manual DIFFERENTIAL HYSTERESIS SETTINGS A WARNING Do not change the differentials hysteresis for domestic hot water operation Parameters 24 25 26 and 27 Always use only the factory de fault settings for these parameters Ill PARAMETER EXPLANATIONS
23. nd circuit DO NOT CHANGE parameter 34 first dig it Second central heating circuit operation is not currently supported 0 2nd CH circuit off No second CH circuit operation LEAVE AS IS 1 2nd CH circuit as slave 2 2nd CH as master 3 2nd CH circuit as slave T set also by potmeter 2nd heating circuit as slave with setpoint temperature with setpoint temperature determined by potentiometer 4 2nd CH circuit as master T set also by 2nd CH potmeter 2nd heating circuit as master ee 0to8 with setpoint temperature determined by circuit CH 0to8 type see right 3 4 potentiometer 5 2nd CH circuit as slave active during HW 2nd heating circuit as slave during DHW 6 2nd CH circuit as slave active during HW 2nd heating circuit as master during DHW 7 2nd Ch circuit as slave T set also by potmeter active during HW 2nd heating circuit as slave during DHW with setpoint temperature determined by potentiometer 8 2nd CH circuit as master T set also by potmeter active during HW 2nd heating circuit as slave during DHW with set point temperature dtermined by potentiometer 0 room thermostat Central heating opertion controlled by room thermostat 1 outside temperature DO NOT SE LECT Central heating operation con trolled by outside sensor not currently supported 2 0 10 V analog on MCBA Capacity DO NOT SELECT central heating boiler input controlled with
24. o a o tc Change orainal New Value Value Parameter No Changed
25. or 2nd CH Circuit 41 T Hysteresis For 2nd CH Circuit Pump SetingsForCHaDHW o9 i 2 EN sa o EN 15 EA E 21 23 24 25 26 EM 28 29 cia 32 39 34 E 35 36 E5 372 30 39 on Ill PARAMETER EXPLANATIONS Revise boiler control parameters only if you fully understand the purpose and result of the changes and on the advice of Technical Sup port Tampering without fully understanding the control settings in this manual will void the warranty and can result in unreliable operation with possible severe personal injury death or substantial property damage A WARNING This document must only be used by a qualified heating installer or service technician Read all instructions including the Installation Manu al P N 240006103 the Control Manual and Operating Instructions P N 240006104 the User s Information Manual P N 240006106 and this Parameter Guide before attempting to program the control and be sure to perform all steps in the order specified Failure to comply could result in severe personal injury death or substantial property damage IMPORTANT Installation must comply with local re quirements and with the National Fuel Gas Code ANSI Z223 1 for U S installations or CSA B149 1 or B149 2 for Canadian installations OUTDOOR RESET OPERATION Outdoor reset adjusts the supply water temperature so the heat output from the heating units matches
26. or the desired reset B s Beller OFF T curve Make sure to set parameters 4 and 6 so the i outlet water temperature is at design water temperature HH when outside temperature drops to the ODT outdoor i 50 40 30 20 10 0 design temperature Outside Temperature F Outdoor Reset Example B Parameter 9 T4 correction l Location of the outdoor sensor may sometimes cause didi dcn the sensor to incorrectly detect outside temperature You can set Parameter 9 to correct for this difference up to 9 F more or less if you believe boiler response needs to be improved Set a negative number to reduce the outdoor temperature reading a positive number to increase the reading T Blocking Set at 40 F Setpoint Temperature T1 F T4 Maximum Set at 60 F T4 Minimum Set at 2F N Parameter 10 T blocking Use this parameter to set a minimum operating boiler outlet water set point temperature M NEL Outside Temperature F When calculated set point temperature T set is at or below T blocking the boiler shuts down after operating a post pump cycle AUTOMATIC TEMPERATURE BOOST e To deactivate this parameter set the value to 32 T1 Foot Set at 60 F lf the target temperature happens to be too low for the heating units to supply sufficient heat within fi
27. ot water pump Use DHW circulator in DHW mode 2 3 way valve normally closed Switch to DHW from CH with normally closed 3 way valve Second digit CH type e 0 instant water heater with NTC3 DO NOT SELECT instantaneous water heater with sensor not currently sup ported 1 instant water heater without NTC3 DO NOT SELECT Instantaneous water heater without sensor not currently sup ported e 2 storage tank with NTC3 DO NOT SELECT Storage tank with sen sor not currently supported 3 storage tank without NTC3 DO NOT SELECT Storage tank with aquastat 4 instant water heater with NTC3 anti condensing DO NOT SELECT Instantaneous water 0 to 9 see heater with sensor anticondensate mode ond CH type right not currently supported is e 5 instantaneous water heater without NTC3 anti condensing DO NOT SELECT Instantaneous water heater without sensor anticondensate mode not currently supported e 6 storage tank with NTC3 anticon densing DO NOT SELECT Storage tank with sensor anticondensate mode not Blank Blank 2 iu currently supported 7 storage tank without NTC3 anticon densing DO NOT SELECT Storage tank with aquastat anticondensate mode not currently supported 8 plate heater exchanger DO NOT SE LECT Plate heater exchanger not cur rently supported e 9 external heat request DO NOT SELECT External heat request from RMCI not curr
28. rs 4 Ill Parameter Explanations 6 IV How To Set Parameters 11 V Parameter Reference Table 12 VI Parameter Change Record 19 Keep this manual near boiler and retain for future reference SAFETY SYMBOLS AND WARNINGS The following defined symbols are used throughout this manual to notify the reader of potential hazards of varying risk levels DANGER Indicates an imminently hazardous situation which if not avoided will result in death serious injury or substantial property damage Indicates a potentially hazardous situation which if not avoided could result in death serious injury or substantial property damage Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury or property damage IMPORTANT Read the following instructions completely before installing Il OVERVIEW OF CONTROL PARAMETERS i ial h just BOILER CONTROL PARAMETERS differential and how to adjust High mass Systems High mass systems such as in slab This manual includes detailed explanations of the adjustable radiant and cast iron radiator systems respond slowly to parameters See Section Ill Parameter Explanations for heat input The factory default settings will work well for more information most of these applications A WARNING DO NOT CHANGE
29. t currently supported Sets max target boiler temperature dur ing call for heat from 2nd CH circuit same function as T1 Top for first CH circuit This function is not currently supported Sets min target boiler temperature dur ing call for heat from 2nd CH circuit same function as T1 Foot for first CH circuit This function is not currently supported T6 Differential is the differential hyster esis for call for heat from 2nd CH circuit is master Boiler starts when outlet tempera ture drops T6 Differential below target out let temperature First digit Special pump CH DHW 0 NOT RECOMMENDED After2to3seconds Normal circulator operation for CH and DHW 1 NOT RECOMMENDED Boiler circulator off on CH call for heat Normal circulator operation on DHW 2 RECOMMENDED SETTING Boiler circulator normal operation DHW circulator 5 second delay before starting 3 NOT RECOMMENDED Boiler circulator off on CH call for heat DHW circulator 5 second delay before starting Second digit Low Off cycle If boiler continues firing at low fire for 3 minutes or longer the boiler will begin cycling like an on off boiler firing only at low fire for cycle times of 10 minutes The boiler will return to normal modulat ing operation if the burner is either off or on for at least 9 minutes VI PARAMETER CHANGE RECORD o o o o E a o 2 c
30. the heat loss as the outdoor temperature changes The colder the outdoor temperature the warmer the water temperature and vice versa The closer the heating unit output matches the heat loss the less the swing in the indoor temperature You can adjust control parameters to do this as shown below OUTDOOR RESET TERMINOLOGY Outdoor Design Temperature ODT Outdoor Design Temperature for the area used to calculate heat loss Use this value for T4 minimum Balance Point Temperature Outside temperature at which building heat loss equals building heat gain from solar and internal sources At this temperature no space heating is required Use this value for T4 maximum Automatic Temperature Boost Compensates for required pick up times and variations in heating load requirements by automatically increasing set point tem perature when a call for heat exceeds a specified time Parameter 11 Parameters 4 5 6 amp 7 Outdoor reset Fixed Temperature Operation If boiler is operated with constant outlet temperature no outside tempera ture sensor installed set Parameter 4 as described in this manual Outdoor Reset Operation Parameters 4 to 7 deter mine the reset curve as shown in Figure 1 T1 is the boiler outlet water temperature T4 is the out Figure 1 CONTROL MODULE PARAMETERS AND OUTDOOR RESET CURVE Outdoor Reset Example A Manual rest limit setting not adjusted Auto rest limit setting
Download Pdf Manuals
Related Search