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Steffes 3100 Series Owner's And Installer's Manual

Forced air heating systems
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V17
"Manufactured in North America"
OWNER'S AND
INSTALLER'S MANUAL
for
COMFORT PLUS
Forced Air Heating Systems
Equipped with Variable Speed
Models: 3120, 4120,
3100
Series
4100
4130, & 4140
Series
Applicable to Software Version 2.00-2.19
This manual applies to heating
U.S. Pat. #5201024, #5086493
Can. Pat. #2059158, #2060881
systems built after 01/01/2011.

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Summary of Contents for Steffes 3100 Series

  • Page 1 "Manufactured in North America" OWNER'S AND INSTALLER'S MANUAL COMFORT PLUS Forced Air Heating Systems Equipped with Variable Speed Models: 3120, 4120, 3100 Series 4100 4130, & 4140 Series Applicable to Software Version 2.00-2.19 This manual applies to heating U.S. Pat. #5201024, #5086493 Can.
  • Page 2 Please record your model and serial number below. This number is found on the identification label located on the lower front of the 3100 series base and on the lower left side of the 4100 series base. Retain this information for future reference.

  • Page 3: Safety Precautions

    Limit Switch and interrupts power to the core blower(s) if the normal air supply outlet. (Auto Reset) operating temperature is exceeded: 4100: On the dis- 3100 Series = 130 F (nominal) charge air 4100 Series = 170 F (nominal) supply blower.

  • Page 4: Table Of Contents

    Appendix Specifications ....................................A.01 Disassembling the 4100 Series Comfort Plus System ........................A.02 Parts Diagram - 3100 Series ................................. A.03 Parts List - 3100 Series ............................... A.04-A.05 Parts Diagram - 4100 Series ................................. A.06 Parts List - 4100 Series ............................... A.07-A.08 Internal System Wiring Diagrams - Line Voltage .......................

  • Page 5: General Operation

    (“stand alone” furnace) or as a supplement to ducted heating systems such as heat pumps. SYSTEM USE DURING CONSTRUCTION PHASE Like most heating equipment manufacturers, Steffes strongly recommends that “Construction Heating Units” be used instead of the permanent heating system during the construction phase of a new home. Use of the permanent heating system during this phase may contaminate the duct system and/or internal areas of the heating system.

  • Page 6: Control Panel

    AM and PM Indicator Lights The AM and PM indicator lights are only utilized if the Steffes Time Clock Module is being installed and using 12 hour time display. With this module installed, the system displays time on AM/PM intervals. The light flashes next to the active designator/symbol.

  • Page 7: Room Temperature Control

    ROOM TEMPERATURE CONTROL The room temperature set point is adjusted at the wall thermostat. If room temperature drops below the thermo- stat set point, the thermostat initiates a heat call and energizes the blowers in the Comfort Plus heating system. The variable speed core blower(s) automatically adjust speed in relation to brick core temperature and duct temperature to circulate room air through the brick core.

  • Page 8: Optional Accessories

    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.

  • Page 9: Installation

    (3100 SERIES) (shipped with brick and packaged in a white box Packaging Dimensions 27 x 40 x 4 consisting of 6 half brick (banded to the 3100 Series Comfort Plus for shipping) and 1 full brick) MODEL FULL BRICK 1/2 BRICK...

  • Page 10: Placement And Clearance Requirements

    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 #1301585) is available to elevate the 4100 Series. 3100 SERIES SYSTEM REQUIREMENTS FIGURE 2 DIMENSIONS CLEARANCES 22 7 16 "...

  • Page 11: Initial Set-Up

    If necessary, the 4100 series can be disassembled for ease in moving. To disas- semble the 4100 Series Comfort Plus, refer to the disassembly instructions (Page A.02) for more information. The 3100 series can NOT be disassembled. Comfort Plus Installation 3.03...

  • Page 12: Brick Loading

    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.

  • Page 13: Heating Element And Air Channel Installation

    ELEMENT INSTALLATION FIGURE 6 3100 Series: Slide the top of this panel inside the upper lip of the top painted panel. The bottom TOP VIEW should rest on the outside of the cavity and secure to the base with screws.

  • Page 14: Brick Core Temperature Sensor Installation - 4100 Series Only

    Refer to Placement and Clearance Requirements (Page 3.02-3.03) for more information. 3100 SERIES The 3100 series is factory configured for a right-to- left air flow. FIGURE 7 Step 1 Assemble the factory supplied return air plenum per the assembly instructions.
  • Page 15 4100 SERIES 4100 SERIES The 4100 series is factory configured for a left-to-right or right- SUPPLY AIR PLENUM ATTACHMENT to-left airflow. In either airflow direction, the holes directly FIGURE 8 above the air outlet on the right side of the 4100 Series MUST be contained in the duct system.

  • Page 16: Air Conditioner/Heat Pump Interface

    Remove the screws to the plenum’s access cover and slide the coil into place inside the ple- num. If not using a Steffes supplied return air plenum, the installer will need to make provisions in the plenum to accommodate the coil and air filter.

  • Page 17: Peak Control

    Sizing of the field wire and overcurrent protection MUST be in compliance with all appli- cable local, state, and national codes and regulations. PEAK CONTROL CONNECTIONS PEAK CONTROL Steffes ETS heating equipment may be controlled by the Power Company TERMINAL CONNECTIONS via a peak control signal. This signal FIGURE 13...

  • Page 18: Outdoor Temperature Sensor

    TIME CLOCK MODULE PEAK CONTROL The Steffes Time Clock Module is another option for providing a peak control signal to the Comfort Plus. The optional time clock module mounts inside the line voltage electrical compartment and interfaces with the relay board via an interface cable.
  • Page 19 THERMOSTAT A low voltage (24VAC) room thermostat is required for room temperature control with the Comfort Plus Hydronic system. Steffes recommends using a digital thermostat. If utilizing a mechanical thermostat, a load resistor may be necessary due to the low current draw (.01 amps) on the heat call input circuit of the Comfort Plus system.

  • Page 20: Auxiliary Load Control

    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.

  • Page 21: Configuration Menu

    Steffes PLC transmitting device. A value of zero indicates PLC communication is disabled. C004 Optional Controls Configuration - Tells the heater what controls are being used. C005 Control Switch Configuration - If utilizing power line carrier control, the Steffes Time Clock Module, or line voltage peak control this value MUST be zero.
  • Page 22 C012 Currently not utilized in the 3100/4100 Comfort Plus systems. C013-C021 Time Clock Module Configuration - These configuration settings are used to configure the peak control times when utilizing the optional Steffes Time Clock Module. Refer to the installation and configuration instructions included with the module for more information.

  • Page 23: Installer's Final Check-Out Procedure

    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 Owner’s and Installer’s Manual provided with that device.

  • Page 24: Appendix

    (W x D x H in inches) The return air plenum is factory supplied only with the 3100 series system. It can be ordered as an optional piece with the 4100 series systems. The dimensions listed are those that the factory supplied return air plenum can accommodate.

  • Page 25: Disassembling The 4100 Series Comfort Plus System

    DISASSEMBLING THE 4100 SERIES COMFORT PLUS SYSTEM Step 1 Remove the painted front panel 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 2 Remove the limit zone cover.

  • Page 26: Parts Diagram - 3100 Series

    PARTS DIAGRAM - 3100 SERIES PSC MOTOR VARIABLE SPEED MOTOR Appendix A.03 Comfort Plus...

  • Page 27: Parts List - 3100 Series

    PARTS LIST - 3100 SERIES When ordering parts, please include the system model and serial numbers. D WG. 31 20 RE F. D ES CRI PTIO N IT E M N O. N O. Front Painted Panel, Right Side 5940728...
  • Page 28 PARTS LIST - 3100 SERIES CONTINUED When ordering parts, please include the system model and serial numbers. D WG. 3 12 0 RE F. D ES CRI PTIO N ITE M NO. N O. Core Blower Limit Switch 130D 1012006R...

  • Page 29: Parts Diagram - 4100 Series

    PARTS DIAGRAM - 4100 SERIES PSC MOTORS VARIABLE SPEED MOTORS Comfort Plus Appendix A.06...

  • Page 30: Parts List - 4100 Series

    PARTS LIST - 4100 SERIES When ordering parts, please include the system model and serial numbers. D WG. 4 12 0 4 13 0 4 14 0 RE F. D ES CRI PTIO N IT EM NO. ITE M NO. ITE M NO.
  • Page 31 PARTS LIST - 4100 SERIES CONTINUED When ordering parts, please include the system model and serial numbers. D WG. 4 120 41 30 41 40 RE F. D ES CRI PTIO N ITE M NO. IT E M N O. IT E M N O.

  • Page 32: Internal System Wiring Diagrams - Line Voltage

    INTERNAL SYSTEM WIRING DIAGRAMS - LINE VOLTAGE Line Voltage Wiring Diagram - Model 3120 240V OR 208V SYSTEMS ONLY Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. SEE NOTE VARIABLE SPEED BLOWER BLACK GROUND BLACK...
  • Page 33 Line Voltage Wiring Diagram - Model 4120 240V OR 208V SYSTEMS ONLY Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. SEE NOTE VARIABLE SPEED BLOWER BLACK BLACK MANUAL RESET 190 ° BLUE GROUND N.C.
  • Page 34 Line Voltage Wiring Diagram - Model 4130 240V OR 208V SYSTEMS ONLY Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. VARIABLE SPEED BLOWER SEE NOTE BLACK BLACK MANUAL RESET 190 ° BLUE GROUND N.C.
  • Page 35 Line Voltage Wiring Diagram - Model 4140 240V OR 208V SYSTEMS ONLY Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. SEE NOTE VARIABLE SPEED BLOWER BLACK BLACK MANUAL RESET 190 ° BLUE GROUND N.C.

  • Page 36: Internal System Wiring Diagram - Low Voltage

    INTERNAL SYSTEM WIRING DIAGRAM - LOW VOLTAGE The outdoor temperature sensor, room thermostat, and peak control device are connected via low voltage wiring. System Low Voltage Wiring Diagram The "R" and "C" positions in the low voltage terminal strip may be used as a source of 24 VAC for powering external low voltage devices (60 VA maximum).

  • Page 37: Help Menu

    HELP MENU The Comfort Plus contains a Help Menu which may be accessed through the control panel. To access the Help Menu, press and release the M button until the faceplate displays “HELP”. Scroll through the menu by pressing either the up or the down arrow button. Display Reading Description...
  • Page 38 There is no communication occurring with the second relay expansion board. The interface cable may be defective or the second expansion board may be unresponsive. There is no communication occurring with the Steffes Time Clock Module. 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.
  • Page 39 OSSAR OSSAR OSSARY Y Y Y Y GLOSSAR OSSAR Anticipated Peak ~ Manual Charge Control Used only by certain power ~ Method of brick core companies as an alternative method of storing heat in charge regulation where the owner must periodically the brick core.
  • Page 40 (5) years of the date of installation and which Steffes’ examination of the returned appliance or part(s) shall verify to Steffes’...

This manual is also suitable for:

41404100 series312041204130

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