Installer’s Guide
FIELD WIRING DIAGRAM FOR 1 STAGE FURNACE
1 STAGE HEATING, 1 STAGE COOLING
USING A 1 STAGE HEATING, 1 STAGE COOLING THERMOSTAT
(OUTDOOR SECTION WITHOUT TRANSFORMER)
FURNACE
OUTDOOR UNIT (NO TRANSFORMER)
SEE
NOTE 6
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| B/C | NOTE 8 | B/C |
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| TO 115 V 1 PH., |
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| 60 HZ., POWER |
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| SUPPLY PER |
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| LOCAL CODES |
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| HUM SEE |
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| NOTE 5 |
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| EAC SEE | From drawing B340388 Rv 2 |
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| NOTE 5 | |
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| TWINNING CONNECTION DIAGRAM |
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| FOR TWINNING 1 STAGE FURNACES WITH |
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| SINGLE WIRE TWINNING FEATURE |
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1 STAGE HEAT | 1 STAGE HEATING ONLY THERMOSTAT |
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ONLY |
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THERMOSTAT |
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(WITH FAN SWITCH) |
| FURNACE NO. 1 | FURNACE NO. 2 |
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| BLOWER OPERATION OF |
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| UNIT NO. 2 IS SYNCRONIZED |
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| WITH UNIT NO. 1 VIA SIGNALS |
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| FROM TWIN CONNECTION. |
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TWIN
TWIN
ISOLATION RELAY (FIELD SUPPLIED)
SEE NOTE 4
SEE NOTE 4
R1
R1
ISOLATION RELAY
SEE NOTE 4
B/C
SEE NOTE 3
B/C
B/C
From Dwg. 21B341422 Rev. 3
28 |
