16
Fig. 13 — 42WKN Unit 2-Pipe System with Heating/Cooling Changeover Aquastat and
Microprocessor Control Wiring Diagram, Sizes 33 and 36
A42-4329
AL
—
Alarm Relay
AWG —
American Wire Gage
BAT —
Battery
CPM —
Condensate Pump
CPU —
Central Processing Unit
HW
—
Hot Water
PCB
—
Printed Circuit Board
VM
—
Vane Motor
VR
—
Valve Relay
Factory-Installed
Field-Installed
Terminal Block
Component Terminal
Connected Path
1
LEGEND