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Related Manuals for Steffes Comfort Plus 4120
Summary of Contents for Steffes Comfort Plus 4120
- Page 1 OWNER'S AND INSTALLER'S MANUAL Comfort Plus Forced Air Heating Systems Equipped with Variable Speed Models: 4120, 4130, & 4140 Applicable to Software Version 2.00-2.19 This manual applies to heating systems U.S. Pat. #5201024, #5086493 Can. Pat. #2059158, #2060881 built after 07/01/2019.
- Page 2 Environmental Protection Agency (EPA), available at http://www.epa. gov. If you are unable to find information and have concerns, contact Steffes. For Customer Use Please record your model and serial number below. This number is found on the identification label located on the lower left side of the 4100 series base.
- Page 3 SAFETY PRECAUTIONS 1. Install all ceramic brick and completely assemble the WARNING heating system before energizing the system to avoid damage to the heating system. 2. DO NOT use or store materials that may produce Hazardous Voltage: Risk of electric explosive or flammable gases near this heating system.
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Page 4: Table Of Contents
Table of Contents Operation General Operation ..................................1.01 System Use During Construction Phase ............................1.01 System Start-Up ...................................1.01 Turning System "OFF" and "ON" ..............................1.01 Control Panel ....................................1.02 Operating Status ...................................1.02 Room Temperature Control .................................1.03 Brick Core Charge Control .................................1.03 Charge Control Override ................................1.03 Maintenance and Cleaning ................................1.03 Optional Accessories Single Electrical Feed Kit ................................2.01... -
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 thermostat 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
COMFORT PLUS STAND 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 system 18". This stand is shipped as a kit and requires field assembly. -
Page 9: Installation
Installation CAUTION Risk of sharp edges. Can cause personal injury. Use caution when installing and/or servicing equipment. SHIPPING AND PACKAGING The Comfort Plus system should always be transported in an upright position to avoid damage to internal components and insulation materials. The information below describes the items shipped with each system. INFORMATION PACKAGE HEATING ELEMENTS (includes Owner's Manual and... -
Page 10: Placement And Clearance Requirements
CLEARANCE CLEARANCE Between Duct and Right Side of System = 0 clearance STEFFES 36" MIN CLEARANCE Outer Sides of System Ducts (Return and Supply) = 0 clearance Minimum clearance requirements may NOT account for required working space for 6"... -
Page 11: Initial Set
FIGURE 2 Return air duct MUST NOTE: DIMENSIONS NOT enter from the Electrical 29 3 16 44 11 Panel 16 " " front or back of the 10 1 2 furnace. Upflow, downflow, or straight 22 5 16 return ducting only. 4140 77 5 8 "... -
Page 12: Brick Loading
BRICK LOADING Load the brick, one row at a time, using a left side, right side, center pattern. WARNING Start at the back of the brick core and work forward. Make sure the brick are placed so the grooved side is facing up and the ridges are on the left and right. Risk of fire. -
Page 13: Brick Core Temperature Sensor Installation
Step 3 Lower the insulation blankets back into position, one at a time. Carefully tuck the sides of the insulation into the edges, corners, and around the exposed portions of the heating elements to ensure maximum efficiency. Step 4 Reinstall the galvanized front panel and secure it to the Comfort Plus system using the screws that were originally removed. -
Page 14: Ducting & Airflow
DUCTING & AIR FLOW WARNING For air delivery, the Comfort Plus is equipped with a variable speed supply air blower. When interfacing HAZARDOUS VOLTAGE: with a heat pump, the A-Coil MUST be placed on the Risk of electric shock. Can cause injury or death. return air side. -
Page 15: Air Conditioner/Heat Pump Interface
If not air handling (blower) system. If the using a Steffes supplied return air plenum, the installer will need to application requires multiple Com- make provisions in the plenum to accommodate the coil and air filter. - Page 16 To determine the correct wire size required for each circuit feeding the Comfort Plus, refer to SAMPLE SYSTEM IDENTIFICATION LABEL the Specifications (Page A.01) and the system's FIGURE 11 identification label located on the lower left side of the system. (Reference Sample Label Figure 11.) Electric Central Heating Furnace 5P99...
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Page 17: Peak Control Connections
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 18: Low Voltage Electrical Connections Outdoor Temperature Sensor
THERMOSTAT IMPORTANT A low voltage (24VAC) room thermostat is required for room temperature control with the Comfort Plus system. Steffes recommends using a digital Low voltage wires MUST thermostat. If utilizing a mechanical thermostat, a load resistor may be never enter any line voltage necessary due to the low current draw (.01 amps) on the heat call input circuit... - Page 19 STAND ALONE FURNACE APPLICATION WITH VARIABLE SPEED BLOWER CONNECTIONS SHOWN FOR SINGLE STAGE HEATING / SINGLE STAGE COOLING ( UNCONTROLLED AIR CONDITIONING ) FIGURE 14 Honeywell TH5110D Air Conditioner Connections (If being used in the application) Peak Aux. IMPORTANT Inputs Relay The Y1/Y2 Jumper must be installed The W/E Jumper must be installed...
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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
Full Brick Core Charge Set Point - If utilizing automatic charge control as set in C000, this value indi- cates the outdoor temperature at which the system targets a full core charge. Power Line Carrier (PLC) Channel Selection – This value must match the channel selected at the Steffes C003 PLC transmitting device. - Page 22 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. 208V SYSTEMS ONLY: In standard configuration, Steffes heaters are dual rated for 240V and 208V power connections.
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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
Appendix SPECIFICATIONS Model 4120 4130 4140 Charging Input (kW) 14.0 19.2 24.8 28.8 37.2 38.4 45.6 Single Feed: Minimum Circuit Ampacity (240V Systems) (Includes 25% Derate for Continuous Load) 20AMP 40AMP Charging Circuits Required 30AMP 30AMP 60AMP (240V Systems – Multiple Feed) &... -
Page 25: Disassembling
DISASSEMBLING THE 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
PARTS DIAGRAM Appendix A.03 Comfort Plus... -
Page 27: Parts List
PARTS LIST NOTE: When ordering parts, please include the system model and serial numbers. 4120 4130 4140 DESCRIPTION REF. ITEM NO. ITEM NO. ITEM NO. Electrical Panel Cover 5940845 5940845 5940845 Electrical Panel Cover (definite " 5940009 5940009 5940009 purpose contactors) Breaker Filler 5940846 Front Painted Panel... - Page 28 PARTS LIST - CONTINUED NOTE: When ordering parts, please include the system model and serial numbers. 4120 4130 4140 REF. DESCRIPTION ITEM NO. ITEM NO. ITEM NO. Base Deflector Panel 5940502 5940502 5940502 Back Bottom Base Painted Panel 5940582-41 5940582-41 5940582-41 Left Side Bottom Painted Panel 5940594-41...
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Page 29: Internal System Wiring Diagrams - Line Voltage
INTERNAL SYSTEM WIRING DIAGRAMS - LINE VOLTAGE Line Voltage Wiring Diagram - Model 4120 240V OR 208V SYSTEMS ONLY C or higher for field connection of this device. NOTE: Use copper or aluminum conductors rated for 75 VARIABLE SPEED BLOWER (VENTILATEUR À... - Page 30 LINE VOLTAGE WIRING DIAGRAM - MODEL 4130 240V OR 208V SYSTEMS ONLY C or higher for field connection of this device. NOTE: Use copper or aluminum conductors rated for 75 VARIABLE SPEED BLOWER (VENTILATEUR À VITESSE VARIABLE) BLACK (NOIR) MANUAL RESET É...
- Page 31 LINE VOLTAGE WIRING DIAGRAM - MODEL 4140 240V OR 208V SYSTEMS ONLY C or higher for field connection of this device. NOTE: Use copper or aluminum conductors rated for 75 VARIABLE SPEED BLOWER (VENTILATEUR À VITESSE VARIABLE) BLACK (NOIR) MANUAL RESET É...
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Page 32: 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. WARNING System Low Voltage Wiring Diagram HAZARDOUS VOLTAGE: NOTES: • The "R" and "C" positions in the low voltage terminal strip Risk of electric shock. -
Page 33: 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 34 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.
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Page 35: Glossary
GLOSSARY 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. adjust the brick core temperature setting in relation to the outdoor temperature. -
Page 36: Warranty
The buyer assumes all risk and liability whatsoever resulting from the use of this heating appliance. In no event shall Steffes be liable to purchaser for any indirect, special or consequential damages or lost profits. This Limited Warranty contains the complete and exclusive statement of Steffes’ obligations with respect to the heating appliance and any parts thereof.
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