Recommendations for Cleaning
It is recommended that the cleaning chemical to be pumped directly into the BPHE, which will
also recirculate into the piping network.
Flush out all water from the piping system.
Remove the entering water sensor and anti-freeze sensor from the BPHE. Connect the supply
and discharge tubing/hose from the cleaning chemical pump to the BPHE (via 1/2" female
sockets).
Do not run the water pump in the mini chiller unit. Run the cleaning pump for 10 to 15 minutes
unless otherwise instructed by the chemical manufacturer. Refer to cleaning instructions provided
by the manufacturers.
BRAZED PLATE Water inlet
HEAT EXCHANGER
R-22 outlet Water outlet
R-22 inlet
anti-freeze sensor
position;
1/2" female socket
entering water
sensor position;
1/2" female socket
Drain away the cleaning chemical. If necessary, a neutralizing agent (e.g. sodium hydroxide) can
then be pumped in a similar manner. Refer to the chemical manufacturer's instructions. After
cleaning, flush out with clean water through the BPHE . Refill the buffer tank in the unit and run
the water pump to recirculate through the piping system. Drain and refill until all
the cleaning chemicals are flushed out. It is also possible to allow the pump to push out
water through the entering water sensor socket.
Section 9 Page 111
To Next Page
Loading...
