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Summary of Contents for Steffes Comfort Plus Commercial 6140
- Page 1 "Manufactured in North America" COMFORT PLUS COMMERCIAL FORCED AIR HEATING SYSTEM Owner’s and Installer’s Manual Model 6140 Applicable to Software Version 2.0X U.S. Pat. #5201024, #5086493 Can. Pat. #2059158, #2060881...
- Page 2 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 base. Retain this information for future reference. Model No. ________________________________________________________________________ Serial No. ________________________________________________________________________...
- Page 3 SAFETY PRECAUTIONS 1. DO NOT energize the system while disassembled or until system installation is complete. 2. DO NOT use or store materials that may produce explosive or flammable gases near the system. 3. DO NOT violate the placement and clearance require- ments specified in this manual (Pages 3.02-3.03).
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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 (Digital Display) ............................... 1.02 Temperature Control ..................................1.03 Brick Core Charge Control ................................ -
Page 5: General Operation
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. 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 FIGURE 1 The AM and PM indicator lights are only utilized if the Steffes Time Clock Module is being installed. With this module installed, the system displays time on AM/PM intervals and the corresponding light flashes. The system can be configured to display military time, in which case, both the AM and PM lights illuminate. -
Page 7: Temperature Control
TEMPERATURE CONTROL Temperature set point is adjusted at the wall thermostat(s) or the main system control. If temperature in the area drops below the desired set point, a heat call is initiated and the blower is energized. The variable speed core blowers automatically adjust speed in relation to brick core temperature and duct temperature to circulate air through the brick core. -
Page 8: Optional Accessories
SINGLE FEED KIT (208/240V ONLY) The Comfort Plus Commercial 6140 has 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. -
Page 9: Scr Controller
The Comfort Plus Commercial system is designed for upflow supply air discharge. In applications where downflow air discharge is desired, Steffes offers a kit that provides the ability to connect the supply air plenum in a manner that directs the air downward. (Order Item # 1301578). In downflow configuration, the furnace must be installed in a fashion that allows access to the supply blower’s plenum cover. -
Page 10: Installation
Installation CAUTION Risk of personal injury. Steel edges can cut. Use caution when install- ing or servicing this equipment. SHIPPING AND PACKAGING The Comfort Plus Commercial 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 11: Placement And Clearance Requirements
FRONT VIEW 0" REQUIRED 0" REQUIRED CLEARANCE CLEARANCE 36" MIN CLEARANCE STEFFES Back and Sides = 3 inches (from combustible material) Requirements of other Bottom = 0 clearance codes and regulations Top = 6 inches (from combustible material) may supercede the Front = 36 inches (for ease in servicing) clearances listed. -
Page 12: Initial Set-Up
SYSTEM DIMENSIONS FIGURE 3 " " Side View " Front View (± ") Unit Duct 6140 " Opening " " 18" ( HP Blower) 22 5 16 " " (1 HP Blower) " ( HP Blower) " " (1 HP Blower) "... -
Page 13: Brick Loading
Step 7 Remove the sheet metal screws around the outer edge of the galvanized front panel. Remove the panel and set it aside. Step 8 Starting at the bottom, carefully lift each of the insulation blankets and drape them over the top of the system. -
Page 14: Heating Element And Air Channel Installation
HEATING ELEMENT AND AIR CHANNEL INSTALLATION Step 1 After all brick are loaded, insert the heating elements between the brick layers, sliding them in until the element ends embed into the side cutouts of the brick cavity. The elements MUST be installed so their threaded screw tabs on the wire connection terminals point forward and down. -
Page 15: Brick Core Temperature Sensor Installation
BRICK CORE TEMPERATURE SENSOR INSTALLATION Step 1 Remove the screws by the brick core temperature sensor holes in the galvanized front panel. Step 2 Insert the brick core temperature sensors through the holes in the galvanized front panel. Be sure the sensor marked "upper" is installed in the upper opening , the sensor marked "lower"... - Page 16 Step 3 Locate the plenum support bracket shipped in the plenum box. Attach the bracket to the supply air side using the blunt tip screws supplied in the plenum assembly hardware package. Refer to Figure 8 for proper positioning of the plenum support bracket. Step 4 Attach the supply blower wiring harness located in the base of the system to the blower using the connections...
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Page 17: Air Conditioner/Heat Pump Interface
Remove the screws to the plenum’s access cover and slide the coil into place inside the plenum. 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 18: Low Voltage Electrical Connections - Peak Control
LOW VOLTAGE ELECTRICAL CONNECTIONS - PEAK CONTROL Steffes ETS heating equipment may be controlled by the Power Company via a peak control signal. This signal can be sent to the equipment using a Steffes Power Line Carrier control system, low voltage wiring, a Steffes Time Clock Module, or line voltage control. -
Page 19: Low Voltage Electrical Connections - 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 Com- mercial . It mounts inside the system’s low voltage electrical compartment and interfaces with the relay board via an interface cable. -
Page 20: Low Voltage Electrical Connections - Room Thermostat
ROOM THERMOSTAT A low voltage (24VAC) room thermostat can be used 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 21: Auxiliary Load Control
TWO STAGE HEAT PUMP APPLICATION WITH VARIABLE SPEED BLOWER FIGURE 16 ! "" #$%& ( * ' () ' () ! , " () ! , " () + ) ,(" Â... -
Page 22: Configuration Menu
C003 Power Line Carrier (PLC) Channel Selection - If using PLC communication, this setting must match the channel setting in the Steffes PLC transmitting device. A value of zero indicates power line carrier communication is disabled. C004... - Page 23 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 time clock module for more information.
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Page 24: 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 25: Appendix
In addition, if the system is not installed within the heated area, heat lost statically must be taken into account when sizing. Contact Steffes Corpora- tion for assistance in selecting an appropriately sized system. - Page 26 DISASSEMBLING A COMFORT PLUS COMMERICAL 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 27 INTERNAL SYSTEM WIRING DIAGRAMS - LINE VOLTAGE 240V OR 208V SYSTEMS ONLY WITH VARIABLE SPEED Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. VARIABLE SPEED BLOWER BLACK BLACK MANUAL RESET 190 ° SEE NOTE 2 BLUE N.C.
- Page 28 277V OR 347V SYSTEMS ONLY WITH VARIABLE SPEED Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. NEUTRAL GROUND VARIABLE SPEED BLOWER FIELD BLACK SUPPLIED BLACK MANUAL RESET Transformer 120/240 VAC 190 ° BLUE N.C.
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Page 29: 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 - With Variable Speed 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 30: Help Menu
HELP MENU The Comfort Plus Commercial 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 31 Error Code Description Outdoor sensor (direct wired) temperature reading is out of normal operating range. The sensor circuit may be open or shorted, the processor control board may be out of calibration, or there may be an incorrect value in L035. If using power line carrier control, make sure the values in L020 and L035 have been set appropriately.
- Page 32 Verify that the values in L090, L091, and L092 are correct for the application. There is no communication occurring with the Steffes Time Clock Module. If this module is installed, verify the value in L035. If correct, the interface cable or the time clock module may be defective.
- Page 33 GLOSSAR OSSAR OSSAR OSSARY Y Y Y Y OSSAR Manual Charge Control ~ Method of brick core Anticipated Peak ~ Used only by certain power charge regulation where the owner must periodically companies as an alternative method of storing heat in adjust the brick core temperature setting in relation to the brick core.
- Page 34 (2) years of the date of installation and which Steffes’ examination of the returned appliance or part(s) shall verify to Steffes’...
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