Preventive Maintenance - ClimateMaster Trilogy Q-Mode (QE) Series Manual

Trilogy Q-Mode
®
R e v i s e d : D e c e m b e r 2 2 , 2 0 2 1

Preventive Maintenance

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 establish a periodic
maintenance schedule with the owner so the water coil
can be checked regularly. 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 flowing
through the unit, the less chance for scaling. However, flow
rates over 3 gpm per ton (3.9 l/m per kW) may produce
water (or debris) velocities that can erode the heat exchanger
wall and ultimately produce leaks.
Hot Water Heat Exchanger
See water coil maintenance for ground water units. If the
potable water is hard or not chemically softened, the high
temperatures of the DWH Heat Exchanger will tend to
scale even quicker than the water coil and may need more
frequent inspections. In areas with extremely hard water, a
routine maintenance schedule should be established to flush
the hot water heat exchanger.
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 filter.
Washable, high efficiency, electrostatic filters, when dirty,
can exhibit a very high pressure drop for the fan motor and
reduce air flow, resulting in poor performance. It is especially
important to provide consistent washing of these filters (in
the opposite direction of the normal air flow) once per month
using a high pressure wash similar to those found at self-
serve car washes.
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(QE) Series IOM - 60Hz HFC-410A
®
G e o t h e r m a l H e a t i n g a n d C o o l i n g
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 filters. Inspect the drain twice a year to
avoid the possibility of plugging and eventual overflow.
Fan Motors
All residential units have permanently lubricated fan motors.
Further lubrication is not recommended.
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 fins 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 floor
a few inches [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 flow rates are at proper levels before
servicing the refrigerant circuit.