ClimateMaster Tranquility 16 Series - Preventive Maintenance Schedule; Coil, Filter, and Drain Maintenance; Compressor, Fan Motor, and Air Coil Care; Cabinet and Refrigerant System Checks

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
44
ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 25 July, 2017
Water Coil Maintenance
(Direct ground water applications only)
If the system is installed in an area with a known high
mineral content (125 P.P.M. or greater) in the water, it is
best to establish a periodic maintenance schedule with
the owner so the coil can be checked regularly. Consult
the well water applications section of this manual for a
more detailed water coil material selection. Should
periodic coil cleaning be necessary, use standard coil
cleaning procedures, which are compatible with the heat
exchanger material and copper water lines. Generally,
the more water fl owing through the unit, the less chance
for scaling. Therefore, 1.6 l/m per kW is recommended
as a minimum fl ow. Minimum fl ow rate for entering
water temperatures below 10°C is 2.2 l/m per kW.
Water Coil Maintenance
(All other water loop applications)
Generally water coil maintenance is not needed for
closed loop systems. However, if the piping is known
to have high dirt or debris content, it is best to estab-
lish a periodic maintenance schedule with the owner
so the water coil can be checked regularly. Dirty instal-
lations are typically the result of deterioration of iron
or galvanized piping or components in the system.
Open cooling towers requiring heavy chemical treat-
ment and mineral buildup through water use can also
contribute to higher maintenance. Should periodic
coil cleaning be necessary, use standard coil cleaning
procedures, which are compatible with both the heat
exchanger material and copper water lines. Generally,
the more water fl owing through the unit, the less chance
for scaling. However, fl ow rates over 3.9 l/m per kW can
produce water (or debris) velocities that can erode the
heat exchanger wall and ultimately produce leaks.
Filters
Filters must be clean to obtain maximum performance.
Filters should be inspected every month under normal
operating conditions and be replaced when necessary.
Units should never be operated without a fi lter.
Washable, high effi ciency, electrostatic fi lters, when dirty,
can exhibit a very high pressure drop for the fan motor
and reduce air fl ow, resulting in poor performance. It is
especially important to provide consistent washing of
these fi lters (in the opposite direction of the normal air
fl ow) once per month using a high pressure wash similar
to those found at self-serve car washes.
Condensate Drain
In areas where airborne bacteria may produce a
“slimy” substance in the drain pan, it may be necessary
to treat the drain pan chemically with an algaecide
approximately every three months to minimize the
problem. The condensate pan may also need to be
cleaned periodically to insure indoor air quality. The
condensate drain can pick up lint and dirt, especially with
dirty fi lters. Inspect the drain twice a year to avoid the
possibility of plugging and eventual overfl ow.
Compressor
Conduct annual amperage checks to insure 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 recom-
mended, 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
insure amp draw is no more than 10% greater than indi-
cated on serial plate data.
Air Coil
The air coil must be cleaned to obtain maximum
performance. Check once a year under normal
operating conditions and, if dirty, brush or vacuum
clean. Care must be taken not to damage the aluminum
fi ns while cleaning. CAUTION: Fin edges are sharp.
Cabinet
Do not allow water to stay in contact with the cabinet
for long periods of time to prevent corrosion of the
cabinet sheet metal. Generally, vertical cabinets are
set up from the fl oor 7 - 8 cm to prevent water from
entering the cabinet. The cabinet can be cleaned using
a mild detergent.
Refrigerant System
To maintain sealed circuit integrity, do not install service
gauges unless unit operation appears abnormal.
Reference the operating charts for pressures and
temperatures. Verify that air and water fl ow rates are at
proper levels before servicing the refrigerant circuit.
Preventive Maintenance