KDB-GOM
Series
- 93 -
No 15 Part name Domestic water heat exchanger
Replacement steps
Disassembly
①
Unplug the boiler from the electric outlet.
②
Span the front cover .
③
Close the water valve.
④
Release the heating water by unscrewing the drain screw below the circulator pump.
⑤
Separate the fan unit.
⑥
Separate the board holding the ignition transformer and the air pressure switch.
⑦
Separate the hot water sensor.
⑧
Remove the 2 screws below the front cover fixing the hot water outlet of the hot water heat exchanger.
⑨
Separate the 2 pins connecting the hot water heat exchanger and the strainer, the hot water heat exchanger
and the expansion tank.
⑩
Separate the hot water heat exchanger from the boiler.
Assembly
①
Connect the hot water heat exchanger to the hot water outlet from outside.
②
Fix the hot water heat exchanger to the boiler.
③
Fix the hot water outlet of the hot water heat exchanger by screwing the 2 screws.
④
Insert the pipe clip at the connecting points.
⑤
Fix the board holding the ignition transformer and the air pressure switch.
⑥
Open the water, plug in the power cord, replenish water and check for water leak and if everything is fine, close
the front cover.
⑦ Plug the boiler into the electric outlet.
Caution
1. Check for water leak after assembly.
2. Make sure the O-ring is assembled correctly.
⑥
④
⑤
⑨
⑩
⑧
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