THERMOSTAT 1 | ( RCB ) |
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TERMINALS | REHEAT |
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| CONTROL BOARD |
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RC |
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RH |
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| R |
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Y1 |
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| Y1 |
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Y2 |
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| Y2 |
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W1 |
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| W1 |
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W2 |
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| W2 |
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G |
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| G |
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C |
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| C |
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X1 |
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| OCC |
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X3 |
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| TERMINAL BLOCK |
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| 2 |
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| RH |
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X4 |
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A1 |
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| HUM | 1 |
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A2 |
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| HUM | 2 | DEHUMIDISTAT3 |
T |
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| 3 |
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T |
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| 4 |
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| TO REMOTE SENSOR |
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| 2ET04701324 IF USED |
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1Electronic programmable Thermostat 2ET0770010024 ( includes subbase).
2Terminals A1 and A2 provide a relay output to close the outdoor economizer dampers when the thermostat switches to the
3Dehumidistat closes on rise in humidity.
TYPICAL
THERMOSTAT
RC
RH
Y1
Y2
G
W1
W2
C
R
Y1
Y2 ( RCB )
GREHEAT
CONTROL
W1 BOARD
W2
OCC
C
HUM
TERMINAL
BLOCK
RH
1 DEHUMIDISTAT1
2
3
4
1Dehumidistat closes on rise in humidity.
TERMINAL BLOCK TB1
GROUND
LUG
FIGURE 21:TYPICAL FIELD WIRING
FACTORY OR FIELD
SUPPLIED DISCONNECT
THREE
PHASE
POWER
SUPPLY
52 | Unitary Products Group |
