Specifications

16 U-5 IOM
Maintenance
Mammoth 100% Outside Air units may require more
frequent maintenance than standard water source
heat pumps.
Air filters
Do not operate the heat pump unit without an air
filter. Clean the filters as often as necessary or at
least once every three months and more frequently in
dusty or other unclean environments.
Note: Dirty filters will cause inefficient heat pump
performance.
Air coil and blower wheel
Check the air coil and blower wheel at least once
each year. More frequent cleaning of blower and heat
transfer surfaces may be required in locations with
dirty air to maintain airflow and peak operating
performance. Clean as often as necessary.
Caution: Disconnect electric power supply to heat
pump before removing cabinet access panels.
Compressor
The 100% Outdoor Air heat pumps have been
designed with switches that protect the unit’s
refrigerant system if refrigerant pressure exceeds
either high or low limits. If unsuitable pressure
occurs, the compressors will automatically shut
down. (Some thermostats will indicate a compressor
shutdown with a “reset” light.)
If the compressor shuts down, turn the controller
system switch to the “OFF” position. After
approximately 10 minutes turn the controller system
switch to “ON” and restart the unit. If the compressor
shuts down again after only brief operation, a
problem exists and qualified service personnel must
be called to provide service.
General service
Any repair or service on the unit may be performed
only by qualified service personnel.
Warranty
Mammoth’s Standard Limited Warranty on all Water
Source Heat Pumps will be in effect for the first 12
months after startup or 18 months from actual
shipment if no startup date is provided. Extended
warranties are also available for an additional charge.
Parts
Parts can be ordered from:
Mammoth Inc.
101 West 82nd Street
Chaska, MN 55318
Phone: [phone]
Fax: [phone]