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3 SERIES 300A11 INSTALLATION MANUAL
Preventive Maintenance
Proper maintenance is very important to obtain optimum
performance and longevity for the heat pump system. It is
best to establish a periodic maintenance schedule with the
installer so the heat pump system can be checked regularly.
Water Coil Maintenance
1.
Keep all air out of the water. An open loop system
should be checked to ensure that the well head is not
allowing air to infiltrate the water line. Lines should
always be airtight.
2.
Keep the system under pressure at all times. It is
recommended in open loop systems that the water
control valve be placed in the discharge line to prevent
loss of pressure during off cycles. Closed loop systems
must have positive static pressure.
NOTE: On open loop systems, if the installation is in
an area with a known high mineral content (125 PPM
or greater) in the water, it is best to establish with the
owner a periodic maintenance schedule so the coil can
be checked regularly. Should periodic coil cleaning be
necessary, use standard coil cleaning procedures which
are compatible with the heat exchanger and copper water
lines. Generally, the more water flowing through the unit
the less chance for scaling. However, flow rates above
3gpm/ton may erode the heat exchanger or water lines,
due to high water velocity or system debris.
Other Maintenance
Filters
Filters must be clean to obtain maximum performance.
They should be inspected monthly under normal operating
conditions and be replaced when necessary. Units should
never be operated without a filter. Operating the system
without a filter or with a dirty filter could affect the
longevity of the heat pump.
Replacement Procedures
Obtaining Parts
When ordering service or replacement parts, refer to the
model number and serial number of the unit as stamped
on the serial plate attached to the unit. If replacement
parts are required, mention the date of installation of the
unit and the date of failure, along with an explanation of
the malfunctions and a description of the replacement
parts required.
Condensate Drain
In areas where airborne bacteria produce a slime in the
drain pan, it may be necessary to treat chemically to
minimize the problem. The condensate drain can pick up
lint and dirt, especially with dirty filters. Inspect twice a
year to avoid the possibility of overflow.
Blower Motors
ECM blower motors are equipped with sealed ball bearings
and require no periodic oiling.
Hot Water Generator Coil
See Water Coil Maintenance section above.
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 (with a brush
attachment) clean. Care must be taken not to damage the
aluminum fins while cleaning.
CAUTION: Fin edges are sharp.
In-Warranty Material Return
Material may not be returned except by permission
of authorized warranty personnel. Contact your local
distributor for warranty return authorization and assistance.
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