Unico IS30G080 - Page 40

Plenum
Adapter
Control
Box
Blower
Module
Refrigerant
Coil
Hydronic
Coil
Remove RAT
sensor from the
Refrigerant coil
and place upstream
of the Hydronic
coil.
BOILER
TT/XX
R B C S1 S2G Y1 Y2 C
S3
AUX
RELAY BOARD
SPST NO RELAY
24VAC TO DRY
CONTACT
(Field-Supplied)
ELECTRIC HEATER
R B C S1 S2G Y1 Y2 C
S3
AUX
RELAY BOARD
FAN
C S1 S2 S3 D