Connections shown for single stage heating single stage cooling.
Shown with uncontrolled air conditioning.
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Comfort Plus 12-Position Low Voltage Terminal Block Coding |
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R = Low Voltage Hot |
O = Reversing Valve Input |
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C = Low Voltage Common |
O2 = Reversing Valve Output |
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Y = Compressor/Stage 1 Heat Call |
E = Emergency Heat Call |
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W = Stage 2 Heat Call |
OS = Outdoor Temperature Sensor |
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Y2 = Compressor Output |
SC = Outdoor Temperature Sensor Common |
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G = Fan Call |
RS = Freeze Protection Room Temperature Sensor |