4 WIRE HEATING AND COOLING SYSTEM
WY
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HEAT |
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| COMPRESSOR | ||
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SYSTEM COMMON
GB
FAN
JUMPER PROVIDED
O | RC RH | C | ||
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OPTIONAL
24VOLT SYSTEM
TRANSFORMER
120 VAC
5 WIRE SYSTEM HEATING AND COOLING - 2 TRANSFORMERS
SYSTEM COMMON
W Y G B
ORC
JUMPER REMOVED
RH C
OPTIONAL
HEAT
COOLING
FAN
24VOLT COOL
TRANSFORMER
24VOLT HEAT
TRANSFORMER
120 VAC | 120 VAC |
SINGLE STAGE HEAT PUMP SYSTEM
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| SYSTEM COMMON |
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| JUMPER PROVIDED | |||
W | Y | G | B* O* | RC RH | C |
ADD |
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| OPTIONAL |
JUMPER |
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HEAT |
| FAN |
PUMP |
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*"B" OR "O" BUT NEVER BOTH
CHANGEOVER
HEAT
CHANGEOVER
COOL
24VOLT SYSTEM
TRANSFORMER
120 VAC
11
