Remote Thermostat and Low Voltage Control
Connections
| Cool Off Heat | Auto On |
RT5 (Two speed fan) | RT4 (One speed fan) |
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Remote Thermostat | Location |
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All Friedrich
Manual Changeover Thermostat
For Heat Pump equipped units: a single stage, heat/cool thermostat with a terminal for a reversing valve operation is required. Terminal “B” should be continuously energized in the heat mode and terminal “G” should be energized whenever there is a call for heating or cooling. (Typically, a single stage, heat/cool thermostat designed for use with electric heat systems will meet the above requirements).
To control the unit with a wall-mounted thermostat:
1)Pull the disconnect switch.
2)Unscrew and remove the control box panel.
3)After selecting which side you want to run your thermostat wire through, run the wires through the side hole in the box to reach the connection terminal for the wiring.
4)Make the wire connections, appropriately matching the wires as shown in the wiring diagram.
5)Once each wire is matched and connected, the unit is now controlled by the thermostat.
6)Reattach the control box cover.
The thermostat should not be mounted where it may be affected by drafts, discharge air from registers (hot or cold), or heat radiated from the sun or appliances.
The thermostat should be located about 5 Ft. above the floor in an area of average temperature, with good air circulation. Close proximity to the return air grille is the best choice.
Mercury bulb type thermostats MUST be level to control temperature accurately to the desired
Thermostat Location
NOTE: An improperly operating, or poorly located room thermostat can be the source of perceived equipment problems. A careful check of the thermostat and wiring must be made then to insure that it is not the source of problems.
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