Advantage Engineering Maximum Instruction Manual page 54

MK Series Portable Chiller : Air-Cooled : HE INSTRUMENT
B. To begin, remove the piping to the "water in" port at the
evaporator. Remove any solids that have collected at this point.
Then back flush the evaporator to remove any solids that may be
trapped between the plates (see back flush procedure below). If
there are mineral deposits adhered to the plates, the evaporator
must be back flushed with a mild acid solution (5% phosphoric or
5% oxalic acid is recommended.) After cleaning rinse with clear
water before returning to service. Continue with step C on the next
page.
C. Back flushing procedure:
1.
2.
3.
BRAZED PLATE HEAT EXCHANGER
FREON OUT
FREON IN
Turn off all power to the machine. For chillers with a
reservoir tank, drain the tank to below the evaporator
outlet. For chillers without a reservoir tank, drain total unit.
Connect a water supply hose to the evaporator water
outlet. If acid cleaning, connect the discharge hose from
the acid pump to the evaporator outlet port.
Connect a hose to the evaporator water supply port and to
an appropriate containment vessel. If acid cleaning,
connect the evaporator water inlet port to an acid solution
reservoir tank. Dispose of all back flush fluid according to
local codes.
(EVAPORATOR)
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
ORIGINAL WATER IN PORT
BACKFLUSH WATER OUT PORT
(ROUTE WATER TO PROPER
SEWER OR DRAIN CONTAINER)
ORIGINAL WATER OUT PORT
BACKFLUSH WATER IN PORT
(SUPPLY BACKFLUSHING WATER
FLOW TO THIS PORT)
Fax: 317-881-1277
Page: 54