CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Water-to-Water (TMW) Series
Rev.: 04/15/16
42
ClimateMaster Water-Source Heat Pumps
Heat Exchanger Maintenance -
(Direct Ground Water Applications Only)
If the installation is performed in an area with a known
high mineral content (125 P.P.M. or greater) in the
water, it is best to establish with the owner a periodic
maintenance schedule 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 either the heat exchanger material or copper water
lines. Generally, the more water fl owing through the unit
the less chance for scaling therefore 2.5 gpm per ton [2.0
l/m per kW] is recommended as a minimum fl ow.
Heat Exchanger Maintenance -
(All Other Water Loop Applications)
Generally water coil maintenance is not needed however,
if the installation is located in a system with a known
high dirt or debris content, it is best to establish with
the owner a periodic maintenance schedule so the coil
can be checked regularly. These dirty installations are a
result of the deterioration of iron or galvanized piping
or components in the system or open cooling towers
requiring heavy chemical treatment and mineral buildup
through water use. 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 gpm per ton [3.9 l/m per kW] can
produce water (or debris) velocities that can erode the
heat exchanger wall and ultimately produce leaks.
Clean or replace 20 mesh (841 micron) [0.84mm]
strainer/fi lters on a timely schedule.
Compressors - Conduct annual amperage checks to
ensure amp draw is no more than 10% greater than that
indicated by serial plate data.
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 a few inches for prevention. The
cabinet can be cleaned using a mild detergent.
Refrigerant System - To maintain sealed circuit integ-
rity, do not install service gauges unless unit operation
appears abnormal. Reference the operating chart for
pressure and temperatures. Verify that air and water
fl ow rates are at proper levels before servicing the re-
frigerant circuit.
If the refrigerant circuit is opened for any reason, a new
liquid line fi lter-drier must be installed.
Preventative Maintenance
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