Condensing Water Heater Service Manual 44 100000354
KB Series Component Replacement Instructions
RU80i/e, RU98i/e
Heat Exchanger
8.Remove 1 screw from water outlet retainer clip. Remove clip and then remove water line from fitting. (A small amount
of water may still be present be sure not to let water come into contact with electrical components) (FIGURE 4)
9.Remove 2 Screws from by-pass retainer clips. Remove Clips and disconnect water lines out of fitting. (FIGURE 5)
10.Remove rubber hose connection from condensate trap using clamp. (FIGURE 5)
11.Remove 2 screws from gas valve connection and disconnect gas line. (FIGURE 5)
12.Disconnect drain line (if applicable) from drain tube, then remove 2 screws securing copper drain tube. (FIGURE 6)
FIGURE 4
Screw
Hot Water Outlet
Screw
s
FIGURE 5
Clamp
By-Pass Valve
Screw
s
Gas Connection
FIGURE 6
Screws
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