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Steffes COMFORT PLUS 4120, Owner'S And Installer'S Manual, Page: 1 / 36

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Steffes COMFORT PLUS 4120 Owner'S And Installer'S Manual Download Page 1

U.S. Pat. #5201024, #5086493

Can. Pat. #2059158, #2060881

Models: 

4120, 4130, 

& 4140

Applicable to Software Version 2.00-2.19

OWNER'S AND 

INSTALLER'S MANUAL 

for

Comfort Plus

 

Forced Air Heating Systems

Equipped with Variable Speed

This manual applies to heating systems 

built after 07/01/2019.

Summary of Contents for COMFORT PLUS 4120

Page 1: ...58 2060881 Models 4120 4130 4140 Applicable to Software Version 2 00 2 19 OWNER S AND INSTALLER S MANUAL for Comfort Plus Forced Air Heating Systems Equipped with Variable Speed This manual applies to heating systems built after 07 01 2019 ...

Page 2: ...onsibility or liability for any er rors or miscalculations contained herein or any revisions hereof or which result in whole or in part from the use of this manual or any revisions hereof Steffes disclaims any responsibility or liability for mold mildew growth and or any damages caused by either which occur after the heating system is installed We strongly recommend that the user follow the moistu...

Page 3: ...to the heating elements if the normal operating temperature is exceeded This limit switch monitors the discharge air temperature and interrupts power to the core blower s if the normal operating temperature is exceeded 160o F nominal Core Blower Limit Switch Auto Reset This limit switch monitors the discharge air temperature and interrupts power to both the supply air blower and the core blower s ...

Page 4: ...el Installation 3 04 3 05 Brick Core Temperature Sensor Installation 3 05 Ducting Airflow 3 06 3 07 Air Conditioner Heat Pump Interface 3 07 Line Voltage Electrical Connections 3 07 3 08 Peak Control Connections 3 09 3 10 Low Voltage Electrical Connections Outdoor Temperature Sensor 3 10 Room Thermostat 3 10 3 12 Auxiliary Load Control 3 12 Humidifier Electronic Filter Installation 3 12 Configurat...

Page 5: ... or improper system operation once the home is completed SYSTEM START UP On start up of the Comfort Plus system odors relating to first time operation of the heating components may be ex perienced Also if not used for an extended period of time dust may accumulate in the system Allow the Comfort Plus heating system to charge to its maximum brick core charge level to expel odors in a timely manner ...

Page 6: ...ian external access for advanced operating modes updating software and troubleshooting OPERATING STATUS The four digit LED will display various operating information as described below Press and release the up arrow to view this data Operating Mode Indicates the current operating mode of the Comfort Plus system C Off Peak Charge Time P On Peak Control Time A Anticipated Peak Time Outdoor Temperatu...

Page 7: ...to target a full core charge level This override can be initiated or cancelled at any time If an override is initiated the system targets a full core charge level during the next off peak period It continues to charge during off peak hours until the system achieves full maximum core charge or until the override is cancelled Once full charge is achieved or the override is cancelled the system charg...

Page 8: ...63 Set Height of Leveling Legs Duct Opening connects to unit Filter Tray Fits 20 x 25 x 2 filters one included Heating Cooling A Coil Tray Inner Dimensions 26 W x 22 D x 31 H Front Access 251 2 W x 22 D x 30 H 52 5 16 28 3 16 22 3 16 26 1 16 Optional Accessories A factory built return air plenum is available for the 4100 series systems and is ordered as a separate accessory This plenum in corporat...

Page 9: ...l compartment OUTDOOR TEMPERATURE SENSOR 2 3 1 INFORMATION PACKAGE includes Owner s Manual and Warranty Registration Card adhered to outer side of shipping box shipped in box above electrical compartment HEATING ELEMENTS SUPPLY AIR BLOWER ASSEMBLY Ordered and shipped separately 6 MODEL FULL BRICK 1 2 BRICK 4120 105 6 4130 150 12 4140 198 12 Full Brick shipped separately and packaged 2 bricks per p...

Page 10: ...r that ensures the air drawn into the Comfort Plus passes through the filter first see Figure 1A In addition to the physical space requirements the weight of the Comfort Plus must be taken into consideration when selecting the installation surface A level concrete floor is the best installation surface on which to place the system but most well supported surfaces are acceptable If unsure of floor ...

Page 11: ...l of the brick storage cabinet by removing the sheet metal screws along the top bottom and sides of the panel Detach by pulling the bottom of the panel forward and down Step 7 Locate the element wiring harnesses behind the front painted panel Carefully position them to avoid damage during the brick loading and wiring processes Step 8 Locate the brick core temperature sensor s behind the front pane...

Page 12: ... facing up and the ridges are on the left and right See Figure 5 BRICK INSTALLATION TIPS Install bricks carefully to avoid damage to the insulation panels Remove loose brick debris to prevent uneven stacking of brick as this can make installation of the elements and the brick core temperature sensor s difficult Brick rows MUST line up front to back and side to side Half brick makes brick loading e...

Page 13: ...nized front panel Models 4130 and 4140 have an upper and a lower brick core temperature sensor Step 2 Insert the brick core temperature sensor s through the hole s in the galvanized front panel If installing a system with two sensors be sure the one marked upper is installed in the upper opening and the one marked lower is installed in the lower opening The sensor s must pass through the blanket i...

Page 14: ...e supply blower wiring harness located in the base of the system to the blower Be sure to place any excess wiring in the base of the system below the radiant heat shield Figure 8 Step 5 Verify that the blower is installed in the plenum with the motor facing away from the system Figure 9 Step 6 Attach the supply air blower plenum to the Comfort Plus by drilling two 1 8 holes per edge and using the ...

Page 15: ...acuum in which the system is operating Typically taller traps are better suited for these types of applications Refer to the Room Thermostat Connections Diagrams Figures 14 15 and 16 for more information on interfacing the Comfort Plus with a heat pump or air conditioner WARNING Risk of fire Any one ducting system MUST NOT contain more than one air handling blower system If the application require...

Page 16: ...38 75 25 83 N A 4130 28 8kW 7 00 30 00 30 00 30 00 30 00 4130 37 2kW 7 00 38 75 38 75 38 75 38 75 4140 38 4kW 7 00 40 00 40 00 40 00 40 00 4140 45 6kW 7 00 47 50 47 50 47 50 47 50 Full Load Current 240VAC only Circuit deration not included Circuit Breakers LINE 2 LINE 1 LINE 2 LINE 1 CHARGE CIRCUIT 3 CHARGE CIRCUIT 2 CHARGE CIRCUIT 1 BLOWERS CONTROLS CIRCUIT CHARGE CIRCUIT 4 MODEL 4130 and 4140 ON...

Page 17: ...cal circuits in the structure With the power line carrier option direct wired low voltage connections from the power company s peak signaling switch connect directly to the transmitting device The switch signals peak control times to the transmitter the transmitter sends the signals to the Comfort Plus system which receives this information and responds accordingly In addition to providing peak co...

Page 18: ...f Operation The outdoor sensor monitors outdoor temperature and provides this information to the system The system responds by automatically storing heat in its brick core according to outdoor temperature and the heating requirements Location of The outdoor sensor must be placed in a location where it can accurately sense outdoor temperature and is not affected by direct sunlight or other sources ...

Page 19: ...utdoor NO AP P RP NC Aux Peak Inputs Relay C P1 To Control Board Comfort Plus R C LV Circuit Board P7 Comfort Plus Installation 3 11 STAND ALONE FURNACE APPLICATION WITH VARIABLE SPEED BLOWER CONNECTIONS SHOWN FOR SINGLE STAGE HEATING SINGLE STAGE COOLING UNCONTROLLED AIR CONDITIONING FIGURE 14 SINGLE STAGE HEAT PUMP APPLICATION WITH VARIABLE SPEED BLOWER FIGURE 15 IMPORTANT If installing a mechan...

Page 20: ...base I O relay board This relay closes during a heat call If installing an electronic air filter connect it to the FAN ON relay on the base I O relay board This relay closes during a fan call The maximum filter size if using a Steffes Return Air Plenum is 20 x 25 x 2 Maximum external load should not exceed 60 VA on the system s class II transformer IMPORTANT TWO STAGE HEAT PUMP APPLICATION WITH VA...

Page 21: ...f access to Configuration Menu times out the 15 amp circuit breaker must be powered off and back on to re enter the menu IMPORTANT C000 Off Peak Method of Charge Control Sets the method of brick core charging to be used during off peak charge periods C001 Start Brick Core Charge Set Point If utilizing automatic charge control as set in C000 this value indi cates the outdoor temperature at which th...

Page 22: ...r Lock Out Temperature for On Peak Mode Indicates the outdoor temperature at which the heat pump s compressor is locked out and not allowed to operate during an on peak period C010 Minimum Discharge Air Temperature Sets the minimum discharge air temperature the system targets during a Stage 1 heat call C011 Currently not utilized C012 Currently not utilized C013 C021 Time Clock Module Configuratio...

Page 23: ...de energize Refer to the Charge Control Override section Page 1 03 for instructions on canceling the charge control override Step 9 Verify once again that the Operating Mode displayed on the control panel corresponds with the power company s peak control signal Step 10 In applications utilizing the Steffes Power Line Carrier control system complete the Installer s Final Check out Procedure in the ...

Page 24: ...Multiple Feed 2 30AMP 1 20AMP 1 30AMP 2 40AMP 2 60AMP 1 40AMP 4 40AMP 4 50AMP 4 50AMP 4 60AMP Maximum Core and Supply Blower Load 240V Systems 7 AMPS Element Voltage 240V Standard 208V and 277V optional as special factory order Note The 240V element circuits can be connected to 208V in standard configurations however the charging input of the system will be derated by 25 Blowers System Controls Vo...

Page 25: ... Step 4 There are two white blue wires which route from the limit zone through a knockout These wires route into the electrical compartment through a romex connector Loosen the romex connector Step 5 Remove the electrical panel cover and locate the point where the white blue wires connect to the black yellow wires Disconnect the white blue wires and route them up through the romex connector Step 6...

Page 26: ...Appendix A 03 Comfort Plus PARTS DIAGRAM 74 ...

Page 27: ...anel Core Limit Jumper Left Side Front Painted Panel Limit Harness Top Limit Harness Bottom Left Side Front Base Panel Bottom Panel Base Top Panel 5940845 5940009 5940846 5940589 41 1023067R 1023078R 1016040 1017039 1023065R 5940850 1024000R 1024002R 5940013 5940505 5940504 5940015 1041503 1041501 5940515 5940513 5940579 NA 1041525 1159006 Contact Factory 1012008R 5940548 1052007 5903025 5940559 1...

Page 28: ...r Supply Air Blower Assembly HP PSC Supply Air Blower Assembly 1 3 HP PSC Supply Air Blower Assembly HP PSC Supply Air Blower Assembly HP Variable Speed ECM Supply Air Blower Assembly 3 4 HP or 1 HP Variable Speed ECM 5940502 5940582 41 5940594 41 5940599 41 1012019R 5940585 41 5940584 41 5940561 1054130 1054132 5940593 41 5940563 5940564 1012008R 1041536R 1012026R 1011701 1040086 1040091 1020007R...

Page 29: ...LS CIRCUIT 60A NO NO COM NO NO COM 1 4 Amp COM COM 15A 60A 60A CHARGE CIRCUIT 1 N C MISE À LA TERRE GROUND LUGS N C 160 BLUE WHITE BLEU BLANC BLUE BLEU 190 BLUE BLACK BLEU NOIR BLUE BLACK BLEU NOIR BLACK YELLOW NOIR JAUNE A1 A2 A1 A2 A1 A2 BLACK BLUE RED 75 VA 240V 24V TRANSFORMER WHITE BLACK BLANC NOIR TRANSFORMATEUR NORMALEMENT FERMÉ NORMALEMENT FERMÉ BLANC CORE LIMITS PROTECTIONS THERMIQUES COR...

Page 30: ... ROUGE BLACK YELLOW NOIR JAUNE BLACK BLUE RED NOIR ROUGE BLEU BROWN BRUN ELEMENT RELAYS RELAIS DES ÉLÉMENTS 1 5 9 ELEMENT RELAYS RELAIS DES ÉLÉMENTS 2 6 10 ELEMENT RELAYS RELAIS DES ÉLÉMENTS 3 7 11 ELEMENT RELAYS RELAIS DES ÉLÉMENTS 4 8 12 75 VA 240V 24V TRANSFORMER TRANSFORMATEUR CORE LIMITS PROTECTIONS THERMIQUES WHITE BLACK BLANC NOIR CORE BLOWERS VENTILATEUR D EXTRACTION 160 BLACK NOIR N C WHI...

Page 31: ...MENTS 2 6 10 14 ELEMENT RELAYS RELAIS DES ÉLÉMENTS 3 7 11 15 ELEMENT RELAYS RELAIS DES ÉLÉMENTS 4 8 12 16 CORE BLOWERS VENTILATEUR D EXTRACTION 160 BLACK NOIR N C WHITE BLACK NOIR NORMALEMENT FERMÉ BLANC RED ROUGE BLACK YELLOW NOIR JAUNE 75 VA 240V 24V TRANSFORMER TRANSFORMATEUR RED ROUGE BLACK YELLOW NOIR JAUNE RED ROUGE BLACK YELLOW NOIR JAUNE RED ROUGE WHITE BLACK BLANC NOIR CORE LIMITS PROTECT...

Page 32: ...RLY1 Fid 2 D6 D4 D J4 Blower P10 P5 D1 C3 Speed A C B Blower J5 J6 Y1 Y2 W E J3 J2 J1 Water P4 D2 P3 G AUX Y2 Y1 W C R O H E O 2 Y12 Y2 C Comfort Plus LV Circuit Board P1 Air P7 P8 R P9 Relay Aux Outdoor Peak Outdoor P Inputs RP NC AP COM NO J6 J5 J3 J4 J1 J2 W E Y1 Y2 Blower Speed C D A B RED ROUGE YELLOW JAUNE TRANSFORMATEUR DISCHARGE AIR SENSOR SONDE DE TEMPÉRATURE DE L AIR D ÉVACUATION THERMOC...

Page 33: ...rge Mode Specialty Applications Only HUxx Heat Usage Indicates the amount of input being dissipated by the system A_xx Target Discharge Air Temperature Indicates the discharge air temperature that the system is targeting cxxx Compressor Output Relay Delay Timer Indicates time remaining before heat pump compressor is energized c ON indicates the heat pump is energized ERROR CODES The Comfort Plus h...

Page 34: ...Clock Module 24 Temperature sensor offset reference is out of range and indicates that one of the sensors or the core thermocouple may be shorted to ground or the processor control board may be out of calibration 25 Power line carrier system is active however no good data has been received 26 Insufficient main control board memory Contact a qualified service technician 27 Insufficient permanent me...

Page 35: ...l Manual Charge Control Method of brick core charge regulation where the owner must periodically adjust the brick core temperature setting in relation to the outdoor temperature Microprocessor Device on the circuit board of the system which stores and processes the informa tion for controlling the operation of the system Off peak The time during the day or night when the power company can supply e...

Page 36: ...o Steffes Corporation This Warranty is void if the heating appliance is moved from the premises in which it was originally installed This Warranty shall not apply to an appliance or part which has been altered in any respect or improperly installed serviced or used or has been subject to accident negligence abuse or misuse THE ABOVE WARRANTY BY STEFFES IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANT...

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