Carrier AQUAZONE 50PSH, Инструкция по установке, запуску и обслуживанию

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NOTE: Horizontal units containing two filters are taped together
at the factory to facilitate removal. This should be done by end
user as new filters are installed.
Water Coil
Keep all air out of the water coil. Check open loop systems to be
sure the well head is not allowing air to infiltrate the water line.
Always keep lines airtight.
Inspect heat exchangers regularly, and clean more frequently if the
unit is located in a “dirty” environment. Keep the heat exchanger
full of water at all times. Open loop systems should have an in -
verted P trap placed in the discharge line to keep water in the heat
exchanger during off cycles. Closed loop systems must have a
minimum of 15 psig during the summer and 40 psig during the
winter. Check P trap frequently for proper operation.
Condensate Drain Pans
The condensate drain should be checked annually by cleaning and
flushing to ensure proper drainage.
Check condensate drain pans for algae growth twice a year. If al -
gae growth is apparent, consult a water treatment specialist for
proper chemical treatment. Applying an algaecide every three
months will typically eliminate algae problems in most locations.
Refrigerant System
Verify air and water flow rates are at proper levels before servic -
ing. To maintain sealed circuitry integrity, do not install service
gages unless unit operation appears abnormal.
Check to see that unit is within the superheat and subcooling tem -
perature ranges. If the unit is not within these ranges, recover and
reweigh in refrigerant charge.
Compressor
Conduct annual amperage checks to ensure that amp draw is no
more than 10% greater than indicated on the serial plate data.
Fan Motors
All units have lubricated fan motors. Fan motors should never be
lubricated unless obvious, dry operation is suspected. Periodic
maintenance oiling is NOT recommended, as it will result in dirt
accumulating in the excess oil and cause eventual motor failure.
Conduct annual dry operation check and amperage check to en -
sure amp draw is no more than 10% greater than indicated on seri -
al plate data.
Condensate Drain Cleaning
Clean the drain line and unit drain pan at the start of each cooling
season. Check flow by pouring water into drain. Be sure trap is
filled to maintain an air seal.
Air Coil Cleaning
Remove dirt and debris from evaporator coil as required by condi -
tion of the coil. Clean coil with a stiff brush, vacuum cleaner, or
compressed air. Use a fin comb of the correct tooth spacing when
straightening mashed or bent coil fins.
Condenser Cleaning
Water-cooled condensers may require cleaning of scale (water de -
posits) due to improperly maintained closed-loop water systems.
Sludge build-up may need to be cleaned in an open water tower
system due to induced contaminants.
Local water conditions may cause excessive fouling or pitting of
tubes. Condenser tubes should therefore be cleaned at least once a
year, or more often if the water is contaminated.
Proper water treatment can minimize tube fouling and pitting. If
such conditions are anticipated, water treatment analysis is recom -
mended. Refer to the Carrier System Design Manual, Part 5, for
general water conditioning information.
Clean condensers with an inhibited hydrochloric acid solution.
The acid can stain hands and clothing, damage concrete, and,
without inhibitor, damage steel. Cover surroundings to guard
against splashing. Vapors from vent pipe are not harmful, but take
care to prevent liquid from being carried over by the gases.
Warm solution acts faster, but cold solution is just as effective if
applied for a longer period.
GRAVITY FLOW METHOD
Do not add solution faster than vent can exhaust the generated
gases. When condenser is full, allow solution to remain over -
night, then drain condenser and flush with clean water. Follow
acid manufacturer’s instructions. See Fig. 41.
Fig. 41 — Gravity Flow Method
FORCED CIRCULATION METHOD
Fully open vent pipe when filling condenser. The vent may be
closed when condenser is full and pump is operating. See Fig. 42.
Fig. 42 — Forced Circulation Method
IMPORTANT: Units should never be operated without a filter.
CAUTION
To avoid fouled machinery and extensive unit clean-up, DO
NOT operate units without filters in place. DO NOT use
equipment as a temporary heat source during construction.
CAUTION
Follow all safety codes. Wear safety glasses and rubber gloves
when using inhibited hydrochloric acid solution. Observe and
follow acid manufacturer’s instructions.
Fill condenser with
cleaning solution. Do
not add solution
more rapidly than
vent can exhaust
gases caused by
chemical action.
Pail
Funnel
Condenser
Pail
3’ To 4’
Vent
Pipe
5’ Approx
1”
Pipe
A50-6286
Suction
Pump
Support
Tank
Fine Mesh
Screen
Return
Gas Vent
Pump
Priming
Conn.
Globe
Va lves
Supply
1” Pipe
Condenser
Remove Wa ter
Regulating Va lve
A50-6287