5 of 6
P/N 0457211_A
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
L1
L2
Modular Electric Defrost Heaters
(Mounted above Evaporators)
R
R
5
208 V Power From Defrost Contactors
Defrost
Termination
Thermostat
Refrigeration
Thermostat
Dark Blue
To
Condensing Unit
}
Light Blue
3
2
WARNING
All components must have mechanical ground, and the merchandiser must be grounded.
Circled Numbers = Parts List Item Numbers
Grayed components in 12 foot models only.
R = Red
1
3
2
Evaporator Fans
(Reverse During Defrost)
1
4
Orange
L2
Red
Brown
To Defrost Timer
120V Only
Blue
L3
Yellow
Relay
Electric Defrost – Standard
120V
P
OWER
Anti-Sweat Heater, Rear Rail
6
P
URPLE
B
AND
P
URPLE
B
AND
120V
N
EUTRAL
