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12
Fig. 9 — 42WKN Unit 4-Pipe System with Hot Water Coil and Microprocessor Control Wiring Diagram,
Sizes 18 and 20
AL
—
Alarm Relay
AWG —
American Wire Gage
BAT —
Battery
CPM —
Condensate Pump
CPU —
Central Processing Unit
CW
—
Chilled Water
HTR
—
Heat Relay
HW
—
Hot Water
PCB
—
Printed Circuit Board
VM
—
Vane Motor
Factory-Installed
Field-Installed
Terminal Block
Component Terminal
Connected Path
1
LEGEND
A42-4323