Miunîenance 30hh,hj, The forced circulation method of cleaning, Repair – Carrier 30HH User Manual
Page 45: 30hh,hj, Miunîenance
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MiUNÎENANCE
30HH,HJ
than the vent can exhaust the gases generated by
the chemical action. When the condenser is full,
allow the solution to remain overnight. Drain the
condenser and flush it with clean water.
Fig. 44 - Gravity Circulation
The Forced Circulation Method of Cleaning
The
forced
circulation
method
of
cleaning
is
shown in Fig. ,45.
F ully open the vent pipe valve while the condenser
is being filled with solution. It may be closed
when the condenser is full and the pump is oper
ating.
The valve in the supply line can be used to regu
late the flow of solution to the condenser. If the
pump is the nonoverloading type, the valve may
be fully closed when the pump is running, should
it be necessary.
For the average scale deposit, allow the solution
to remain in the condenser overnight. For heavy
deposits,
allow
twenty-four
hours.
Drain
the
condenser and flush it with clean water.
Repair
The
shell
and
coil
condensers
are
not
easily
repaired in the field and should be replaced in
case of leakage. The shell and tube condensers
are
equipped
with
rolled
in
tubes.
Tools
are
available
for
replacing
the
tubes
in
case
of
leakage.
Fig. 45 - Forced Circulation
39