Bally Refrigerated Boxes Walk-In Service Manual - Manual (Page 9)

REV: 5/2013 IM-268S-11 2013 © Bally Refrigerated Boxes, Inc. 9
Pressure Relief Ports (PRP)
Replacing magnetic gasket on PRP
A. Remove the port door by removing the screws from the
poly-hinge at the top of the port door. See Figure 14.
B. Remove the interior plastic panel from the door by
removing the screws around its perimeter beneath the
magnetic gasket.
C. Remove and discard the defective gasket.
D. Position the new gasket (#016597) and the interior plastic
panel on the door; secure with screws.
E. Reinstall the port door.
Replacing anti-condensate heaters on PRP
A. Disconnect the power supply at its source, and remove the
port door by removing the two screws from the poly-
hinge at the top of the door. See Figure 14.
B. Remove the stainless steel door strikes by removing the
two screws in the top and bottom flanges.
C. Disconnect the defective anti-condensate heater in the
junction box at the top of the door. Discard the old
heater.
D. Insert the new heater (#015628) and reassemble the door
strikes. Exercise care not to pinch the heater wire
beneath the door strikes.
E. Replace the port door and refasten the screws.
F. Reconnect the electrical power.
Replacing klixon on PRP
A. Disconnect power at its source, and remove the electrical junction box cover above the port.
B. Remove the screws located in flanges on the exterior of the port, and lift the unit from the panel.
C. Disconnect the appropriate wire nuts in the junction box. Remove and replace the defective klixon (#017083).
See Figure 15.
D. Caulk around the perimeter of the opening, and replace the port. Rewire and replace the junction box cover.
Reconnect electrical power. See Figure 16.
Figure 13
Figure 14
Figure 15
Figure 16