Summary of Contents for Steffes ThermElect Hydronic 9150
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Hydronic OWNER'S AND INSTALLER'S MANUAL Models: 9150, 9180 Applicable to Software Version 2.XX LISTED...
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This manual should be retained by the owner upon completion of the installa- tion and made available to service personnel as required. Disclaimer: In compiling this manual, Steffes Corporation has used its best judgement based upon information available, but disclaims any responsibility...
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SAFETY PRECAUTIONS WARNING Fully assemble the system and load ceramic heat storage brick prior to energizing the system. Hazardous Voltage: Risk of electric Pressure relief valve must be installed prior to operation of shock, injury, or death. This system may be connected to more than one the system.
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 Discharge Air/Water System ................................1.03 Brick Core Charge Control .................................1.03 Charge Control Override ................................1.03 Maintenance and Cleaning ................................1.03 Optional Accessories Load Management Control .................................2.01...
Operation GENERAL OPERATION The ThermElect Hydronic heating system stores de- mand off-peak electricity in the form of heat. Operation of the heating system is automatic. During hours when energy costs are lower the system converts electricity to heat which is then stored in its ceramic brick core.
AM and PM Indicator Lights CONTROL PANEL The AM and PM indicator lights are only utilized if the Steffes Time Clock Module FIGURE 1 is being installed and using 12 hour time display. With this module installed, the system displays time on AM/PM intervals.
BRICK CORE CHARGE CONTROL Steffes heating systems are capable of providing a wide variety of heating options for various applications. The heating system's primary function is to store energy in the form of heat. Because the system is operated with mi- croprocessor based control, it is very fl...
The system is designed to operate under one of many load management control strategies. 1. BACNet Control Steffes commercial heating furnaces are available with a BACNet control option BACNET (Order Item #1301013 or #1301015). This device is easily integrated into most building automation systems to provide building managers full control and vis- ibility of the heating system’s operation.
It utilizes SSR technology to enable more precise balancing of a building’s overall elec- tric load by varying the amount of total element input that can be energized in a Steffes furnace at any given time in relation to the maximum allowable building load. The Stef- fes SSR optimizes a building’s power quality and control.
277/480 or 347/600 volt element circuits, a transformer must be installed per the installation instructions to sup- ply this voltage to the system’s controls. This transformer can be purchased as an optional device from Steffes Corporation or sourced from your local electrical supply outlet. See the matrix below for proper sizing. load as dictated by the furnace’s set-up.
Installation SHIPPING AND PACKAGING The ThermElect Hydronic system should always be transported in an upright position to avoid damage to internal components and insulation materials. The left and right side panels and the top panel should not be removed from the Storage Module.
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SHIPPING AND PACKAGING CONTINUED... CORE THERMOCOUPLES OUTDOOR TEMPERATURE SENSOR (shipped inside the 9150 = Qty 2 electrical panel) 9180 = Qty 3 (shipped inside the electrical panel) TRANSFORMER CONDUIT ASSEMBLY (277V & 347V SYSTEMS ONLY) TOP AIR CHANNEL BLOCK (shipped inside the electrical panel) (shipped separately) CERAMIC BRICK MODEL...
PLACEMENT AND CLEARANCE REQUIREMENTS The system dimensions and required clearances MUST be taken into consideration when choosing its location within a structure. (See WARNING Figure 2 for dimensions and clearance requirements.) Risk of fi re. Can cause injury or death. The best installation location for the system is in a space requir- •...
(front) in the base line up with the square clear of system when lifting. holes of the storage module. Optional lifting handles are available from Steffes (Order Item #1302120). Step 6 Reinstall painted back panel and attach right and back side seam trim using hardware provided.
BRICK LOADING Step 5 Locate and install the back rigid insulation inside the brick storage module. It will FIGURE 3 be placed on top of the existing rigid insulation at the back of the module. The angled edge will line up with the existing rigid insulation. Load the brick, one row at a time, starting at the back of the brick core and work- Step 6 ing forward.
Step 4 Lower 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 element to ensure maximum effi ciency. Use face mask, gloves, and long sleeved garments when handling insulation materials in ac- cordance with generally accepted safety practices.
LINE VOLTAGE ELECTRICAL CONNECTIONS To determine the correct wire size required for the circuit feeding the system, refer to the Specifi cations (Page A.01-A.02) and the WARNING system's identifi cation label located on the cover of the electrical panel (Figure 8). HAZARDOUS VOLTAGE: Risk of elec- tric shock, injury or death.
A low voltage (24VAC) room thermostat can be used for room temperature control with the ThermElect Hydron- ic system. If so, Steffes recommends using a digital thermostat. To iniate a heat call, the system needs a switch closure from R to H. This energizes the primary loop pump outputs.
AIR CONDITIONER/HEAT PUMP INTERFACE The ThermElect Hydronic system can be used in conjunction with an air conditioner or a heat pump. Contact Steffes Corporation for more information. 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 fi...
PLUMBING The ThermElect Hydronic system should be plumbed with a primary loop and secondary (zone) loops. The primary loop needs to consist of a minimum of 12' of 1.25" pipe. The heat exchanger inlet and outlet are 1.5" diameter, reducers will be required if 1.25" pipe is elected for the primary loop. The secondary (zone) loops re- quire additional pump(s) to operate effectively.
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Heat Exchanger Flow and Restriction Properties Restriction 80° Restriction 150° Water 50% Propylene Glycol Velocity (Feet/Sec) (Feet of Heatd) (Feet of Head) 24.5 CAUTION HEAT EXCHANGER SPECIFICATION Capacity 3.4 Gallons FREEZE PROTECTION: Risk of property damage. Hydronic Maximum Flow 30 GPM heating system freeze-ups WILL cause extensive damage to the entire heating system and/or property.
EXPLODED VIEW DIAGRAM - 50KW STORAGE MODULE The exploded view diagram is for reference only. The ThermElect storage module should not be disassembled. A.03 PPENDIX HERM LECT YDRONIC...
EXPLODED VIEW DIAGRAM - 80KW STORAGE MODULE The exploded view diagram is for reference only. The ThermElect storage module should not be disassembled. A.04 HERM LECT YDRONIC PPENDIX...
Typical System Line Voltage Wiring Diagram 9150 APPLICATION 240V 1-PHASE 2 WIRE Ground BASE IO BOARD #12 Relay #11 Relay Element Element TRANSFORMERS 240v / 24v #18 Relay #17 Relay Element Element 1/4 Amp #8 Relay #7 Relay 5 Amp Element Element #6 Relay...
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Typical System Line Voltage Wiring Diagram 9180 APPLICATION 240V 1-PHASE 2 WIRE Ground BASE IO BOARD #18 Relay #17 Relay Element Element #16 Relay #15 Relay Element Element TRANSFORMERS 240v / 24v #14 Relay #13 Relay Element Element 1/4 Amp #12 Relay #11 Relay 5 Amp...
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 The "R" and "C" positions in the low voltage terminal HAZARDOUS VOLTAGE: Risk strip may be used as a source of 24 VAC for powering ex- of electric shock, injury, or ternal low voltage devices (60 VA maximum).
Equip- Er03 is an error message which will not generally ap- ment must be serviced by a pear on the 5100, 7100, or 9100 Series Steffes heat- qualifi ed technician. ing systems. If an Er03 is displayed, check the value in Location 35 (L035) to verify that the 2 bit has not been enabled.
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Error Code Description Discharge air sensor temperature is out of normal operating range. This can indicate an open sensor, a short in the wiring, or a circuit board which is out of calibration. Take an ohm reading across the sensor to ensure proper operation, check the wiring, and verify the value in L035.
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J1 is "ON" and J2 is "OFF". Verify that the value in L053 is correct for the appli- cation. 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.
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Error Code Description If the check sum fails in the Flash copy of the settings or if the initial write to the Flash fails, Er42 is displayed. Reprogram the heating system or replace the processor control board. An attempt to load a saved confi guration by setting Location 98 (L098) to a value of 20, 30, 40, or 50 has failed.
Retain the top portion of the card for your fi les. WARRANTY STATEMENT Steffes Corporation warrants for a period of two (2) years following delivery, limited to three (3) years from date of manufacture, of any goods provided under this Agreement that the goods purchased hereunder will be of merchantable quality, free from defects in material and workmanship, and that the goods provided will be new and conform to the mechanical and performance specifi...
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