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Summary of Contents for Steffes Comfort Plus Hydronic 5120
- Page 1 "Manufactured in North America" OWNER'S AND INSTALLER'S MANUAL COMFORT PLUS HYDRONIC (5100 SERIES) Models: 5120, 5130, & 5140 Applicable to Software Version 140-159...
- Page 2 Disclaimer: In compiling this manual, Steffes Corporation has used its best judgement based upon information available, but disclaims any responsibility or liability for any errors 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.
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Page 3: Safety Precautions
SAFETY PRECAUTIONS DO NOT energize this heating system while WARNING disassembled or without the ceramic heat storage brick in place. Risk of explosion. Can cause injury or death. DO NOT operate this heating system without the Operating the system without the pressure factory provided pressure relief valve in place. -
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 ............................... -
Page 5: General Operation
Operation GENERAL OPERATION The Steffes Comfort Plus Hydronic heating system stores off-peak electricity in the form of heat. Off-peak electricity is available during times of the day or night when electricity is plentiful and the power company may supply it at a lower cost. -
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. 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: Room Temperature Control
ROOM TEMPERATURE CONTROL Room temperature is adjusted at the wall thermostat(s). A heat call from the room thermostat energizes the primary water loop pump. The variable speed core blower automatically adjusts its speed to achieve the desired outlet water temperature. The heated water is then pumped to the area (zone) from which the heat call origi- nated. -
Page 8: Optional Accessories
The Comfort Plus Hydronic system requires a primary water loop which serves to regulate heat transfer from the unit’s heat exchanger. To minimize installation time and costs for field design and engineering of this loop, Steffes Corporation offers a primary loop kit. The kit contains the components generally installed with hydronic heat systems. -
Page 9: Static Heat Recovery Unit
NOTE: In applications using the Steffes Air Handler, the static heat recovery unit would not be used. If the area available to install the Comfort Plus Hydronic system is less than 100 square feet, Steffes Corpora- tion recommends installing a low voltage cooling thermostat, connected between R and G on the 12-position terminal block, to maintain a temperature less than 85 degrees Fahrenheit. -
Page 10: 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 Hydronic 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
PLACEMENT AND CLEARANCE REQUIREMENTS The physical dimensions (Figure 2) of the Comfort Plus Hydronic along with the clearances required (Figure 3) MUST be taken WARNING into consideration when choosing its location within a structure. The best installation location for this system is in a space requir- Risk of fire. -
Page 12: Initial Set-Up
If the Comfort Plus Hydronic is installed in an area where radiant heat coming from the system is undesired or where room temperatures may reach 85° Fahrenheit or greater, it is strongly recommended to install a Static Heat Recovery unit or Air Handler. Refer to page 2.01 for information on these options. In addition to the physical space requirements, the weight of the Comfort Plus Hydronic must be taken into consid- eration when selecting the installation surface. -
Page 13: Brick Loading
BRICK LOADING BRICK LOADING Load the brick, one row at a time, using a left side, right FIGURE 4 side, center pattern. Start at the back of the brick core and work forward. Make sure the brick are placed so the grooved side is facing up, the notch is facing forward, and the ridges are on the left and right. -
Page 14: Brick Core Temperature Sensor Installation
Step 2 Install the front air channel by placing AIR CHANNEL PLACEMENT the bottom in first, with the air deflec- FIGURE 6 tors (arrow shaped pieces) facing inward. Refer to the Air Channel Placement (Figure 6) and the Parts Diagram (Page A.02) for proper placement and installation of the front air channel. -
Page 15: Line Voltage Electrical Connections
LINE VOLTAGE ELECTRICAL CONNECTIONS In standard configuration, the Comfort Plus WARNING Hydronic is wired for connection to 240V, however, the element circuits can also be connected to 208V. A 208V connection derates HAZARDOUS VOLTAGE: Risk of electric shock. Can the charging input of the system by 25%. If a cause injury or death. -
Page 16: 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 IMPORTANT Power Line Carrier control system, low voltage wiring, a Steffes Time Clock Module, or line voltage control. - Page 17 TIME CLOCK MODULE PEAK CONTROL The Steffes Time Clock Module is another option for providing a peak control signal to the Comfort Plus Hy- dronic. It mounts inside the system’s low voltage electrical compartment and interfaces with the relay board via an interface cable.
- Page 18 A low voltage (24VAC) room thermostat is required for room temperature control with the Comfort Plus Hy- dronic 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.
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Page 19: Outdoor Temperature Sensor
Air Handler (Page 2.01) and the Low Voltage Connections for Heat Pump Application Diagram (Figure 11), for more information on interfacing these systems with the Comfort Plus Hydronic. If multiple heat pumps are being interfaced, contact Steffes Corporation. ... -
Page 20: Pressure Relief Valve Installation
PRESSURE RELIEF VALVE INSTALLATION WARNING Risk of explosion. Can cause injury or death. The factory supplied pressure relief valve MUST be connected to the system with the supplied fittings. DO NOT modify this assembly. DO NOT cap, plug, or otherwise obstruct the outlet of the pressure relief valve. - Page 21 (Consult Local Code) PUMP SPECIFICATIONS • Steffes recommends a Grundfos UP15-42F single speed 115VAC pump for the primary pump. • Air Handler pump should NOT be a split phase pump. • Air Handler pump should NOT have any type of auxiliary control built into or onto the pump.
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Page 22: Auxiliary Load Control
Use of a check valve, zone valve, or other device may help prevent involuntary flow. TYPICAL SYSTEM PLUMBING (SHOWN WITH STEFFES AIR HANDLER) FIGURE 16 Secondary Loop Primary Loop... -
Page 23: 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 24 Make sure the tion settings are used to configure the peak control times maximum and minimum water when utilizing the optional Steffes Time Clock Module. temperatures are appropri- Refer to the installation and configuration instructions ate for the application.
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Page 25: Installer's Final Check-Out Procedure
Step 11 Verify, once again, that the “Operating Mode” displayed on the control panel corresponds with the power company's peak control signal. Step 12 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 26: Appendix
Appendix SPECIFICATIONS Appendix A.01 Comfort Plus Hydronic... -
Page 27: Parts Diagram
PARTS DIAGRAM Comfort Plus Hydronic Appendix A.02... -
Page 28: Parts List
PARTS LIST NOTE When ordering parts, please include the system model and serial number. DWG. REF. DESCRIPTION 5120 5130 5140 ITEM NO. ITEM NO. ITEM NO. Electrical Panel Cover 5940853 5940852 5940852 (non-recessed breakers) Electrical Panel Cover 5940845 5940845 5940845 (recessed breakers) Front Painted Panel 5940589... - Page 29 PARTS LIST - CONTINUED NOTE When ordering parts, please include the system model and serial number. DWG. REF. DESCRIPTION 5120 5130 5140 ITEM NO. ITEM NO. ITEM NO. Limit Harness Bottom 1041504 1041504 1041504 Left Side Front Base Panel 5940881 5940881 5940881 Bottom Panel...
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Page 30: Internal System Wiring Diagrams - Line Voltage
INTERNAL SYSTEM WIRING DIAGRAMS - LINE VOLTAGE Line Voltage Wiring Diagram - Model 5120 240V OR 208V SYSTEMS ONLY Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. SEE NOTE 1 CORE BLOWER GROUND BAR BLACK HIGH... - Page 31 Line Voltage Wiring Diagram - Model 5130 240V OR 208V SYSTEMS ONLY Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. SEE NOTE 1 CORE BLOWER GROUND BAR BLACK HIGH EXCHANGER CONTROL CIRCUIT 250 °...
- Page 32 Line Voltage Wiring Diagram - Model 5140 240V OR 208V SYSTEMS ONLY Use copper or aluminum conductors rated for 75 C or higher for field connection of this device. SEE NOTE 1 CORE BLOWER GROUND BAR BLACK HIGH CONTROL CIRCUIT EXCHANGER 250 °...
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Page 33: 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: Risk of electric shock. Can cause The "R" and "C" positions in the low voltage terminal injury or death. -
Page 34: Help Menu
HELP MENU The Comfort Plus Hydronic system 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 this menu by pressing either the up or the down arrow button. Display Reading Description... - Page 35 There is no communication occurring with the second relay expansion board. The board 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 one of the sensors is shorted to ground, the processor control board is out of calibration, or the blower/control circuit is connected to an improper input voltage.
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Page 36: Disassembling The Comfort Plus Hydronic System
DISASSEMBLING THE COMFORT PLUS HYDRONIC 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 by removing the screws holding it in place. -
Page 37: Glossary
GLOSSARY Air Separator ~ Device used to remove air from Location Value ~ The specific information set and the water so the air does not get into the closed loop stored in a location on the system's microprocessor system and cause damage to other components. which defines system operation. -
Page 38: Warranty
(5) 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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