Specifications

168 Part Number STH12 9/10
MODEL 72/72B AIR COOLED 1 PHASE
Symbols
Wire Nut, Small Yellow
Wire Nut, Large Black
Wire Attached to Component
Carbonator
Tan k
Cable
Jacket
Assembly
Carb.
Pump
Motor
Load
Liquid Level Control
Red
White
Green
White
Black
Red
Black
Red
Flex
Conduit
Transformer (Automatic)
Black
Red
208VAC Input
240VAC Output
Transformer
Red
Red
Red Red
Black
Black
Red
Black
Start
Relay
Contactor
White
Red
Red
Black
Black
Black
White
Red
White
Black
Black
Black
White
White
Water
Booster
Pump
Motor
Air
Compressor
Motor
120VAC
Metal
Conduit
Black
Green Wire
Equipment
Ground
Green
Flex
Conduit
Assembly
Flex
Conduit
Condenser Stand
Black
White
Green Wire
Equipment Ground
Green
Black
120VAC 120VAC
Metal
Conduit
Flex
Conduit
Assembly
Warning:
For 220VAC, rewire
per alternate wiring.
Black
White
White
White
White
Black
Black
Black
Control Box
White
White
Black
Black
Black
Red
Start
Capacitor
Run
Capacitor
Black
Ref.
Circ.
Agit.
Carb.
Black
Red
Red
White
Black
Red
Ice Bank
Sensor
Agitator
Motor
Circ.
Motor
Compressor
Flex
Conduit
Assembly
Green
Red
Black
High
Pressure
Control
CO
2
Signal
Transformer
24VAC
Low CO
2
Pressure Switch
Alternate Wiring
When the supply voltage is 230/115 VAC, disconnect autotransformer
(0021035) from the circuit.
1. Disconnect incoming power.
2. Remove transformer box cover.
3. Remove wire nut from black lead to H4.
4. Replace wire nut on exposed end of black lead.
5. Remove both red leads from (H1 and X1).
6. Connect red leads together with a wire nut.
7. Replace cover.
Identified Terminal
Toggle Switch