FIELD
FIELD
FACTORY
FACTORY
SEVEN WIRE
W2 W1 Y2 R G Y1 C
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| 208/230- OR | |
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| HEATING- |
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| ONLY |
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| THREE | |
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BLK | BLK |
| W2 |
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| PHASE |
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| GND |
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| GND | |||
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WHT | WHT |
| COM |
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| W/W1 |
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| GND | GND |
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| C |
| SINGLE |
JUNCTION | Y/Y2 |
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| PHASE | ||
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| Y1 |
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DISCONNECT | BOX |
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| GND |
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R |
| Y2 | GND | ||||
| SWITCH | CONTROL |
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(WHEN REQUIRED) | BOX | G |
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| CONDENSING |
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| UNIT |
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| TERMINAL |
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| BLOCK | NOTES: 1. Connect | ||||
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| FURNACE |
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| 2. | Some thermostats require a "C" terminal connection as shown. | |||
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| 3. If any of the original wire, as supplied, must be replaced, | |||
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| use same type or equivalent wire. |
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A99072
Fig.
flashing, or a code composed of 2 digits. (The first digit is the number of short flashes, the second is the number of longs flashes.) Refer to service label on blower compartment door for code explanations and useful troubleshooting suggestions. (See Fig. 12.)
It is important to note that power to furnace must not be interrupted and furnace blower door must not be removed until the LED status code(s) is recorded. When power to control is interrupted, status memory is erased.
The control will store up to 5 previous codes but will not store
Use any recorded fault codes, service label, and troubleshooting diagram on following pages to diagnose and correct any problem condition.
WIRING DIAGRAMS
Refer to Fig. 9, 10, and 11 for appropriate wiring diagrams.
TROUBLESHOOTING
Refer to service label. (See Fig. 12.) The Troubleshooting Guide can be a useful tool in isolating furnace operation problems. Beginning with the word “Start,” answer each question and follow the appropriate arrow to the next item.
The Guide will help you identify the problem or failed component. After replacing any component, verify correct operation sequence. More information is available in a seperate Troubleshooting Guide for