Defrost Timer; Heaters - Traulsen UHT48 Service Manual

V. REMOVAL & REPLACEMENT OF PARTS (cont'd)
27" Models
Begin by removing the evaporator cover as outlined
in section "V a." Next, remove the screws that secure
the defrost timer to the evaporator housing. Discon-
nect the lead wires from the defrost timer (see figure
14).
Reverse the procedure to install. Adjust the defrost
timer as outlined in "DEFROST TIMER SETTINGS" in
the "Service Procedures & Adjustments" section.
Begin by removing the evaporator and condensing unit
covers as outlined in section "V a & b." Next, discon-
nect the lead wires to the defrost heater. There is a
ground wire attached from the heater shield to the side
panel of the evaporator housing (see figure 16).
Disconnect the drain tube from the drain pan at the
back of the unit and pull the drain pan and heater from
the unit.
Reverse the procedure to install.
WARNING: UNPLUG UNIT BEFORE SERVICING
V. g - DEFROST TIMER:
V. h -HEATERS:
-9-
48" & 60" Models
Begin by removing the evaporator cover as outlined
in section "V a." Next, remove the screws that secure
the defrost timer to its mounting bracket. Disconnect
the lead wires from the defrost timer (see figure 15).
Reverse the procedure to install. Adjust the defrost
timer as outlined in "DEFROST TIMER SETTINGS" in
the "Service Procedures & Adjustments" section.
Defrost Heater - Freezer Models Only: Begin by remov-
ing the evaporator cover as outlined in section "V a."
Next, disconnect the lead wires to the defrost heater
and drain pan heater. There is a ground wire attached
from the heater shield to the side panel of the evapo-
rator housing (see figure 17).
Disconnect the drain tube from the drain pan at the
back of the unit and remove evaporator defrost heater
(see figure 18).
Reverse the procedure to install.