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CTHN-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
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FIGURE 32: One Zone Operation without Control Panel (Multiburner)
1
2
3
4
5
6
COIL
COIL
R C
W G
Y
Thermostat
Pump
Motor
Pressure
Switch
(Pump)
SPST (12A)
Transformer
Relay
Zone 1
Burners
N
L
L
N
Nine Burners Maximum
Black
White
Red
Black
L
120 V
1 Ø
60 Hz
N
Ground
Description
Part Number
SPST Transformer Relay
90417600K