Glass Heater Wire Replacement; Defrost Heater Replacement; Bulb Ballast Replacement; Defrost Timer Replacement - Hussmann GGSM Installation And Service Instructions Manual

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GLASS HEATER WIRE REPLACEMENT –
Disconnect power to cabinet. Remove
front and left side access panels. Remove electri-
cal enclosure cover. There are four individual
heaters hooked in series. One around each piece
of glass, and one located across the rear top of
the cabinet interior under the light fixture. Con-
nections for these heaters are in each of the four
corners of the cabinet.
To gain acces s to these heaters, remove
the light fixture and lift off the plastic top. Each
heater will have to be tested to find the defective
one. Lift out glass and replace defective heater
with new one exactly as the defective one was in-
stalled. Once heater has been replaced, reas sem-
ble cabinet in reverse order, reset timer and re-
connect power.
DEF ROST HEATER REPLACEMENT –
Remove product from cabinet and place
in storage freezer. Disconnect power to cabinet.
Remove front and left side access panels. Re-
move electrical enclosure cover. Remove bottom
interior pans. After locating defective heater, re-
move from location and install new heater in
place.
If replacing heater on the evaporator coil,
make sure new heater is in direct contact with
coil to ensure proper defrost. Cut wires from old
heater and tape new wires to old wires. Gently
pull wires through hole penetration in bottom of
cabinet and connect to proper terminals on ter-
minal board. Reset timer, and reassemble cabi-
net in reverse order.
BULB / BALLAST REPLACEMENT -
Disconnect power to cabinet. Remove
four screws from rear of fixture and slide as-
sembly straight up. Bulb, ballast and lam-
pholders are now exposed. Replace defective
component and reassemble cabinet. Turn
power to cabinet back on.
DEFROST TIMER REPLACEMENT –
Disconnect power to cabinet. Remove
front and left side access panels. Remove
electrical compartment cover. Remove
screws holding timer in place and install new
timer. Disconnect wires from old timer, one
screw at a time and install on new timer. Set
timer for correct time of day and install de-
frost pins in timer at proper time of day. Re-
assemble in reverse order and turn power
back on.
THERMOMETER –
The thermometer readings are in both
Centigrade and Fahrenheit. The sensing
bulb for the thermometer is located in the
right front of the cabinet near the evaporator
coil. The bulb is in the return air going to
the evaporator. The thermometer may be re-
placed by first removing the light fixture,
then the plastic top, and removing the bot-
tom pans covering the evaporator. Once the
thermometer has been replaced, reassemble
the cabinet in reverse order.
SERVICE SPECIF ICATIONS –
Condensing Unit - M4CL-0060CFA
Compressor
- Aspera
Relay Ass 'y
- 514C017-01
7
AFT26CIE-CFA

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