Wiring Schematics
RELAY
WE
BK
SUPPRESSOR
TIMER
RELAY
COMPRESSOR
CAP.
R
S
C
O/L
SHORT
CYCLE
PROTECTOR
GN
CONDENSER
BLOWER
MOTOR
MOTOR
BLOWER
EVAPORATOR
CAP.
CAP.
CRANKCASE HEATER
PRESSURE
SWITCH
OPTIONAL
OPTIONAL
THERMAL
CUTOUT
HEATER
BU
55
T-STAT
R
T-STAT
75
BU
Y
R
STRIP
HEATER
B
2
4
3
6
8
7
0
1
2
4
3
0
6
8
7
1
YELLOW
BLUE
RED
h
COMMON
RED TO YELLOW
CLOSES ON TEMP.
INCREASE
RED TO BLUE
OPENS ON TEMP.
INCREASE
COOLING EFFECT DETECTOR
TERMINAL
BLOCK
TO CUSTOMER
ALARM SYSTEM
{
LOW AIR FLOW DETECTOR
{
RD-N.C.
BK-N.0.
WE-COM
RED TO BLUE
OPENS ON PRESS.
RED TO YELLOW
CLOSES ON PRESS.
EXCESS PRESURE DETECTOR
BLUE
{
BK
RD
RED
YELLOW
COMMON
h
INCREASE
INCREASE
WE
TERMINAL
BLOCK
TERMINAL
BLOCK
ALARM SYSTEM
TO CUSTOMER
ALARM SYSTEM
TO CUSTOMER
10
HT SERIES
WD-125 REV. B
