Maintenance and service
C 950/C 1050 (Pro TL 175 C/199 C) – 6 720 805 440 (2019/10)
58
▶ Reconnect electrical supply to unit, open water shutoff
valves, and return the unit to service.
Fig. 69
[1] Pump
7.4 Condensing heat exchanger unit
The condensing heat exchanger unit must be checked once a
year by a qualified and trained technician. If repairs are needed,
the repairs should be done by a certified Bosch technician.
Commercial or recirculating applications may require more
frequent condensing heat exchanger service.
Fig. 70 Condensing heat exchanger unit
Condensing heat exchanger unit maintenance;
▶ Shut off power. Disconnect power cord.
▶ Dismantle all inlet, outlet pipes and the condensate tube
from the condensing heat exchanger unit.
▶ Remove the condensing heat exchanger unit from the
appliance by pulling it towards you.
▶ Examine the fin tubes visible through the back ports of the
heat exchanger. If there are significant deposits, flush out
with warm water. If obstruction remains or damage to the
fins is visible, dismantle the heat exchanger for further
examination and repair.
▶ Dismantle all parts for inspection and cleaning.
NOTE: A condensing heat exchanger gasket and o-ring kit is
necessary for this step.
Fig. 71 Condensing heat exchanger
▶ Clean fins with warm water and a stiff brush. If fin damage
is found replace damaged fin tube.
It is important to inspect and properly replace the gaskets and
o-rings.
▶ Assemble the condensate unit and all other parts in reverse
order of disassembly.
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