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Optional Accessories 

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2.01

Comfort  Plus

Optional Accessories

2

Accessories

SINGLE  ELECTRICAL  FEED  KIT

The Steffes Comfort Plus systems have built-in circuit

breakers. They are factory configured to be field con-

nected to multiple line voltage circuits. If single feed to

the element and blowers/control circuits is desired, the

single feed kit is available to allow the system to be

powered with a one, larger line voltage circuit.

COMFORT  PLUS  STAND  -  4100  SERIES

Some applications (such as garages) may require that the heating appliance be

elevated in order to meet building codes. The Steffes Comfort Plus stand elevates

the 4100 system 18".  This stand is shipped as a kit and requires field assembly.

Model Part 

3120 1301574 
4120 1301572 

4130/4140 1301570 

RETURN AIR PLENUM - 4100 SERIES

DOWN FLOW KIT

Order Item #1301578

Order Item #1301550

Order Item #1301585

Stand

 

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: 25

1
2

 "W x 22"D x 30"H

52 5/16”

 

28 3/16”

 

22 3/16”

 

26 1/16”

 

9.263

+ Set Height

of Leveling Legs.

Summary of Contents for 3100 Series

Page 1: ...9158 2060881 Models 3120 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 4100 Series 3100 Series This manual applies to heating systems built after 01 01 2011 ...

Page 2: ...ny 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 in stalled We strongly recommend that the user follow the moisture mold and mildew prevention guidelines of the Environmental Protection Agency EPA available at http www epa gov If you are unable to find information and have concer...

Page 3: ...monitors the discharge air temperature and interrupts power to the core blower s if the normal operating temperature is exceeded 3100 Series 130o F nominal 4100 Series 170o F nominal Core Blower LimitSwitch Auto Reset This limit switch monitors the discharge air temperature and interrupts power to both the supply air blower and the core blower s if the normal operating temperature is exceeded 3100...

Page 4: ...tureSensorInstallation 4100SeriesOnly 3 06 Ducting 3 06 3 07 Air Conditioner Heat Pump Interface 3 08 LineVoltageElectricalConnections 3 08 3 09 LowVoltageElectricalConnections PeakControl 3 09 3 10 Outdoor Temperature Sensor 3 10 RoomThermostat 3 11 3 12 AuxiliaryLoadControl 3 12 Humidifier ElectronicFilterInstallation 3 12 Configuration Menu 3 13 3 14 Installer sFinalCheck OutProcedure 3 15 Appe...

Page 5: ...roper 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 experienced 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 As with ...

Page 6: ... 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 Temperature O followe...

Page 7: ...he system 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 sy...

Page 8: ...00 SERIES Some applications such as garages may require that the heating appliance be elevated in order to meet building codes The Steffes Comfort Plus stand elevates the 4100 system 18 This stand is shipped as a kit and requires field assembly Model Part 3120 1301574 4120 1301572 4130 4140 1301570 RETURN AIR PLENUM 4100 SERIES DOWN FLOW KIT Order Item 1301578 Order Item 1301550 Order Item 1301585...

Page 9: ...e of shipping box MODEL ELEMENTS 3120 8 4120 8 4130 12 4140 16 shipped inside the base of the Comfort Plus HEATING ELEMENTS 4 SUPPLY AIR BLOWER ASSEMBLY 4100 SERIES Packaging Dimensions 26 x 24 5 x 20 5 shipped separately 6 MODEL FULLBRICK 1 2BRICK 3120 18Boxes 0Boxes 4120 26Boxes 1Box 4130 37Boxes 2Boxes 4140 49Boxes 2Boxes RETURN AIR PLENUM ASSEMBLY 3100 SERIES Packaging Dimensions 27 x 40 x 4 b...

Page 10: ...surface on which to place the system but most well supported surfaces are acceptable If unsure of floor load capacity consult a building contractor or architect Special requirements must be considered if placing the system in a garage or other area where combustible vapors may be present Consult local state and national codes and regulations to ensure proper installation An 18 pedestal Order Item ...

Page 11: ...installed by a qualified technician in compliance with all applicable codes and regulations 3A FRONT VIEW 48 2 MIN CLEARANCE IN COLD AIR RETURN 6 X 6 REGISTER FILTER TRAY 0 REQUIRED CLEARANCE M STEFFES P M M A 0 REQUIRED CLEARANCE 6 MIN CLEARANCE 3B TOP VIEW 36 MIN CLEARANCE 3 MIN CLEARANCE DIMENSIONS P M 4100 Series 18 Standard 22 1 2 if 1hp Front View 29 3 16 133 4 1 4 14 1 4 4100 Series Top Vie...

Page 12: ...stem Use face mask gloves and long sleeved garments when handling insulation materials in compliance with generally accepted safety practices Step 11 Remove the front air channel by pulling out on the bottom of the air channel on a 3100 series or the top of the air channel on a 4100 series BRICK LOADING Load the brick one row at a time using a left side right side center pattern Start at the back ...

Page 13: ...ide the top of this panel inside the upper lip of the top painted panel The bottom should rest on the outside of the cavity and secure to the base with screws 4100 Series Slide the bottom of this panel inside the lower lip of the brick cavity The top rests on the outside of the cavity Step 5 Carefully route wiring harnesses and connect them to the heating elements using screws provided in the hard...

Page 14: ...ured for a right to left air flow Step 1 Assemble the factory supplied return air plenum per the assembly instructions Step 2 Once assembled set the plenum on the right side of the system with the air filter and indoor coil access covers facing forward Line up the pre drilled holes on the system with the holes in the flanges of the plenum and attach using the screws provided in the plenum s hardwa...

Page 15: ...t Plus by drilling two 1 8 holes per edge and using the self tapping screws supplied in the hardware package Step 7 Connect both the return air and supply air ducting systems in the structure to the Comfort Plus system Be sure the air holes just above the air outlet on the right side are contained in the duct system See Figure 8 for reference to the location of these holes If the Comfort Plus syst...

Page 16: ... coil can be placed on either the supply air or the return air side of the system The condensate drain trap in a heat pump or air conditioner installa tion should be designed for the vacuum 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 13 14 and 15 for more information on interfaci...

Page 17: ...tion on configuring the system for the application Never install any wiring in a line voltage compartment of the Comfort Plus unless it is rated for line voltage IMPORTANT TerminalBlockCoding RP PeakControlInputCommon P Peak Control Input AP Anticipated Peak Pre Peak Control Input COM PeakControlOutputCommon NC PeakControlOutput NormallyClosed NO PeakControlOutput NormallyOpen LOW VOLTAGE DIRECT W...

Page 18: ...d the controls circuit must be powered with an uninterrupted circuit An external switching device such as a relay panel is necessary to directly control the heating element charging circuits If relying on this method of control the display on the system must continuously display a brick core operating mode of C charge regardless of whether it is an off peak or on peak period LOW VOLTAGE ELECTRICAL...

Page 19: ...TAND 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 è If installing a mechanical thermostat or thermostat with anticipator a resistor kit is required Order Item 1190015 IMPORTANT è 0 1 1 0 1 0 2 3 Thermostat ...

Page 20: ...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 VARIABLE SPEED BLOWER FIGURE 16 TYPICAL AUXILIARY LOAD CONTROL FIGURE 17 NOTE During off peak charge periods the con tact is closed betwe...

Page 21: ... only a few if any configuration changes will be necessary Determine which method of peak control is being utilized and configure as follows 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 indicates the outdoor temperature at...

Page 22: ...eak period C009 Heat Pump Compressor Outdoor 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 in the 3100 4100 Comfort ...

Page 23: ... system 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...

Page 24: ... 37 2 38 4 45 6 Charging Circuits Required 240V Systems Multiple Feed 2 40AMP 2 50AMP 2 60AMP 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 6 AMPS 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 ho...

Page 25: ...and back upper panels 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 r...

Page 26: ... Appendix PARTS DIAGRAM 3100 SERIES 25 13 15 14 19 42 17 16 8 18 19 26 43 22 3 2 1 10 7 9 6 21 37 39 20 38 40 23 5 Brick Side View 4 11 28 34 27 12 29 36 33 31 35 32 24 41 30 13 VARIABLE SPEED MOTOR PSC MOTOR 16 48 47 46 44 45 17 ...

Page 27: ...3 Low Voltage Panel 5940748 14 Terminal Block 12 Position 1016040 15 Terminal Block 6 Position 1016041 16 Supply Air Blower Assembly PSC 1041630 Supply Air Blower Assembly Variable Speed 1041631 17 Supply Air Blower 1 2 HP 1075 RPM PSC 1040086 Supply Air Blower 1 3 HP 850 RPM PSC 1040090 Supply Air Blower 1 2 HP Variable Speed 1020007R 18 Supply Air Blower Capacitor 1018006R 19 Supply Air Blower M...

Page 28: ...nsulation Panel 1050124 36 Transformer 75VA 1017039 37 Breaker 15 Amp 1024000R 38 Breaker 60 Amp 1024002R 39 Interface Cable 36 1010016 40 Interface Cable 12 1010012 41 Outdoor Sensor Knockout Style 40 1302044R Outdoor Sensor Knockout Style 8 1302033 42 Faceplate Label 1159029 43 Time Clock Module optional 1301014 44 Harness Motor ECM Low Voltage 1011703 45 Harness Line Voltage Variable Speed 1011...

Page 29: ...0 3 4 5 6 11 12 9 7 18 19 13 16 14 15 30 31 29 28 27 26 25 33 53 52 51 50 49 48 47 45 34 35 32 46 44 43 36 37 38 42 24 23 40 39 57 60 59 58 20 21 22 41 62 64 63 65 66 17 67 Brick Side View 68 57 54 56 55 8 PSC MOTORS VARIABLE SPEED MOTORS 22 21 70 71 72 73 69 61 1A 58 61 ...

Page 30: ...3 1041515 1041502 16 Harness Relay to Element Red 1041501 1041513 1041500 17 Front Air Channel 5940515 5940521 5940514 18 Front Standoff 5940513 5940513 5940513 19 Front Galvanized Panel 5940579 5940524 5940578 20 Upper Brick Core Temperature Sensor N A 1041525 1041525 Lower Brick Core Temperature Sensor 1041525 1041525 1041525 21 Core Blower Spring 1159006 1159006 1159006 22 Core Blower 1021001R ...

Page 31: ... Switch 190D 1012026R 1012026R 1012026R 57 Supply Air Blower Wiring Harness 1011701 1011701 1011701 58 PSC Motors with capacitor Supply Air Blower 1 2 HP 1075 RPM 1040086 1040086 1040086 Supply Air Blower 3 4 HP 1075 RPM 1040091 1040091 1040091 Variable Speed Motors Supply Air Blower 1 2 HP Variable Speed 1020007R 1020007R 1020007R Supply Air Blower 1 HP Variable Speed 1020008R 1020008R 1020008R 5...

Page 32: ...ELEMENT 5 RED LIMIT LIMIT CORE CORE COM COM COM NO L1 1 4 Amp NO NO NO ELEMENT 1 ELEMENT 3 ELEMENT 2 CORE DAMPER BASE IO BOARD BLACK YELLOW RESISTER RESISTOR Element 4 Element 2 Element 1 Element 3 COM CIRCUIT 2 CONTROLS BLOWERS CIRCUIT 1 HEAT CALL NO COM COM NO 15A 60A 60A CHARGE CIRCUIT CHARGE GROUND LUGS BLACK SEE NOTE Element 7 Element 5 Element 6 HEATING ELEMENTS Element 8 ELEMENT 8 Element N...

Page 33: ...SISTER Element 2 Element 1 Element 3 Element 4 COM COM Element 7 Element 6 Element 5 HEATING ELEMENTS Element 8 ELEMENT 7 ELEMENT 8 TRANSFORMER NO NO COM COM 240v 24v ELEMENT 5 ELEMENT 6 75 VA RED Element 2 4 6 COM COM NO NO NO NO NO ELEMENT 3 ELEMENT 4 To Relays 1 8 3 5 7 To Element To Element Relays Relays BLACK BLACK YELLOW BLUE BLUE WHITE RELAY RELAY RED BLUE in the base of the Heater Plenum C...

Page 34: ...TE NO HEAT CALL COM COM COM L1 1 4 Amp 5 Amp NO COM NO 15A 60A 60A 60A 60A BROWN BLACK RED BLUE 2 Element 2 Element 1 Element 3 Element 4 EXPANSION ELEMENT 5 L1 L2 240 BOARD L2 120 NO 1 4 Amp COM COM COM BOARD HEATING ELEMENTS NO COM COM NO ELEMENT 11 COM NO ELEMENT 12 NO COM Element 7 Element 5 Element 6 Element 8 Element 9 1 ELEMENT 6 NO NO COM COM NO COM Element 12 Element 10 Element 11 NO NO L...

Page 35: ...ONTROLS CIRCUIT 1 CIRCUIT 2 CIRCUIT CHARGE CHARGE CHARGE CHARGE SEE NOTE Relays Relays Relays Relays ELEMENT 4 ELEMENT 3 ELEMENT 2 ELEMENT 1 Element 5 Element 2 Element 1 Element 3 Element 4 Element 15 COM NO NO COM NO COM COM NO EXPANSION 2 BOARD COM COM NO NO ELEMENT 14 ELEMENT 16 ELEMENT 15 ELEMENT 13 NO NO COM COM Element 10 Element 7 Element 6 Element 8 Element 9 Element 11 Element 12 Element...

Page 36: ...ip may be used as a source of 24 VAC for powering external low voltage devices 60 VA maximum HAZARDOUS VOLTAGE Risk of electric shock Can cause injury or death All low volt age wiring must be segre gated from line voltage circuits in the system WARNING PROCESSOR BOARD TO LOW VOLTAGE TO PROCESSOR CONTROL BOARD CIRCUIT BOARD Y2 2 SC 19 RS 20 W 10 P DS OS C O G AP Y 15 17 18 16 13 14 11 12 COM RP E N...

Page 37: ...ications 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 HAZARDOUSVOLTAGE Risk of electric shock Can cause inj...

Page 38: ...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 memory Contact a qualified ser...

Page 39: ... Y 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 ...

Page 40: ...turningthedefectiveapplianceorpart s toSteffesCorporation ThisWarrantyisvoidiftheheatingapplianceismovedfromthepremisesinwhichitwasoriginallyinstalled This Warrantyshallnotapplytoanapplianceorpartwhichhasbeenalteredinanyrespect orimproperlyinstalled serviced orused orhasbeensubjecttoaccident negligence abuseormisuse THEABOVEWARRANTYBYSTEFFESISEXCLUSIVEANDINLIEUOFALLOTHERWARRAN TIES WHETHER WRITTEN...

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