The thermostat must not be installed on an outside wall or any other location where its operation may be adversely affected. Adverse affects include radiant loading from fireplaces, sunlight, or lighting fixtures, and convective loading from warm air registers or electrical appliances.
To check the heat anticipator setting either:
1.Add the current draw of the system com- ponents; or
2.Measure the current flow on the thermostat
Set the heat anticipator according to the ther- mostat manufacturer's instructions for heat anticipator settings.
VENTILATION
Ventilation must be provided for homes built to HUD Manufactured Homes Safety and Con- struction Standards. This ventilation can be sup- plied by the VentilAire III or VentilAire IV acces- sories. (See Table 12). Alternate means to pro- vide the ventilation air must meet the require- ments of all applicable local and federal codes.
For installation of the VentilAire III or IV, follow the instructions provided with the VentilAire kit.
START-UP AND ADJUSTMENTS
General
Prior to
1.The line voltage power leads are securely connected, that the polarity of the con- nections is correct, and that the furnace is properly grounded.
2.The thermostat wires (R, W, Y, and G) are securely connected to the correct leads on the terminal strip of the circuit board.
3.The natural gas line service pressure must not exceed 10.0 in. water column (0.36 psig), and must not be less than 4.5 in. water column (0.16 psig). For LP gas the line service pressure must not exceed 14 in. water column (0.51 psig), and must not be less than 11.0 in. W.C. (0.40 psig).
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Connect | C |
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Y |
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R & W | Y |
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For | G |
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Only | W |
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Room | W |
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NOTE: The "Y" |
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UTEC control board |
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must be connected | EAC |
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mode operation. | HUM |
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FIELD WIRING |
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Figure 28. Low Voltage Field,
Four-wire Heating/Cooling Applications
4.The
5.The blower door is in place, closing the door switch in the line voltage circuit.
6.The gas line has been purged and all connections are leak tight.
Start-Up Procedure
1.Set the thermostat to the lowest setting.
2.Close the disconnect(s) to provide line voltage to the furnace.
3.Follow the procedures given on the oper- ating instructions label attached to the furnace.
4.Set the thermostat above room tempera- ture and verify the sequence of operation. (See the SEQUENCE OF OPERATION.)
