9 Wire Connections | PG 7 |
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Make sure your wires are labeled. This is necessary to determine which
If you have a Zoned Heating/Cooling system with multiple thermostats, please refer to our website at
Before you Connect Wires
Please refer back to these guidelines for safe and secure wire connections.
.Take care not to damage the labels for each wire in handling.
.Strip insulation 3/8 in. (9.5mm) from wire ends.
.Connect labeled wires only to a terminal with corresponding letter.
.Bend the wire slightly, insert the wire under the contact plate and tighten the screw down onto the wire.
What Wires Do You Have?
The Wire chart shows wire labels used on Ritetemp thermostats. Please determine what wires you have and select the correct wiring diagram to "go to" on pages 9.
Caution | Do not allow |
| wires to touch |
each other or parts on unit . Wires must be routed through the hole in the back plate, below the terminal block, or they will hit parts on the cover.
The Wire Chart below will help you determine the terminal connections you will use on your new thermostat. See chart section that applies to your heat/cool system.
ONE | Power | Wire |
TWO | Power | Wires |
Control wires |
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HEAT | PUMPS |
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ZONED | MOTOR | VALVES |
ZONED | SOLENOID | VALVES |
OLD THERMOSTAT | NEW THERMOSTAT | DESCRIPTION |
R or RH or 4 or V | RH or RC(leave jumper) | Power Wire |
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RH or 4 or V | RH (remove jumper) | Power Heat |
RC or R | RC (remove jumper) | Power cool |
W or H | W | Heat return |
Y or M | Y | Cool return (compressor) |
G or F | G | Fan return |
C or X | C | AC source for thermostat |
W2 or H2 | W2 | 2nd stage of heat |
Y2 | do not connect | 2nd stage of cool (n/a) |
W2 | W2 | Heat pump Aux heat |
E |
| Do not connect |
O (see note below) | O | |
B (see note below) | B | |
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5 or R | RH | Power wire (pwr) |
4 or W | W | Turn Valve on |
6 or Y or B | A | Turn Valve off |
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R | RH | Power wire (pwr) |
Y or B | W | Turn Valve off |
W | A | Turn Valve on |
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Note: On a heat pump, if O and B are both present, connect O to O and tape off B.
For wiring support call
