IM 439 / Page 19 of 24
To Low Voltage
Hole on Unit
Shutoff Valve
To Main System
Conduit Assembly
Motorized Valve
Assembly
Flexible Hose
Return Water Connection
Typical Motorized Valve Installation
Motorized Valve & Relay for Large Vertical Units
Wired as shown below the motorized valve will open on a
call for compressor operation. These 1-
1
⁄
4
˝ and 1-
1
⁄
2
˝ valves
are power-open power-close. Valve and auxiliary relay are
purchased separately.
P/N 061201002 - 1-1/4" Valve Kit (070-120)
P/N 061201102 - 1-1/2" Valve Kit (180-290)
P/N 061201202 - Valve Relay
Note:
Wire motorized valve relay to Circuit one (1) on all dual circuit machines, sizes 180, 215 and 290, as illustrated above.
Note:
The wiring shown below can only be used when the “P”
terminal is not being used as a pump restart signal to other equipment.
If the “P” terminal must be used as a pump restart signal to other
equipment, then wire the auxiliary relay’s yellow wire to “Y1”, white
wire to “W1”, and orange wire to “C”, then the valve will open on a call
for occupied heating or cooling from the thermostat.
1
2
3
4
5
Orange to 5
Pin, Male
Plug
Conduit
Anti-Short
Bushing
66" (1676 mm)
Lead Length
1
1
/
4
" or 1
1
/
2
"
Valve
Black to 1
Red to 2
White to 3
Yellow to 4
WSHP Mark IV/AC Board Low Voltage Terminal Strip (Circuit1)
O W2 G W1 Y1 F
E
L
U
A
P
V
R
C
1
2
3
Auxiliary Relay
Orange
Yellow
White
4
5
2
3
1
BL
BK
GN
Valve
COMP Spade
Terminal (On
Circuit 1 Mark
IV/AC Board)
COMMON
Spade Terminal
(On Circuit 1
Mark IV/AC)
OR
RD
Compressor
Contactor
(Circuit 1)
RD
OR
Time Clock
(by others)
Daisy-chain to
additional Mark IV/AC
board “U” terminals
