Airmax MaxAir 100e P2, Design, Installation And Maintenance Instructions

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Page 38
SERVICE AND MAINTENANCE .
filter
The MaxAir ™ series air handlers are not
provided with a filter. A good quality filter
should be installed and or replaced or
cleaned monthly.
A CLOGGED OR INADEQUATE FILTER
MAY VOID PRODUCT WARRANTY.
duct cleaning
If proper filter maintenance is adhered to,
duct cleaning is not required for the life of the
equipment.
coils
Air conditioning and heating coils should not
require cleaning if the filter maintenance
schedule is adhered to. If a filter is damaged
or collapses from plugging, the coils may get
fouled by dust. If this happens, replace the
filter and carefully vacuum the coils. The fan
may need to be removed to gain access to
the face of the heating coil.
air conditioning coil
At the start of each cooling season, check the
drain connection to the cooling coil to ensure
it is free of debris. An easy way to do this is
to blow into the tube to see if there is any
obstruction. If a plugged air conditioning coil
is suspected, call a service technician for
testing and cleaning.
fan and motor
Check fan for dust once a year. If dirty,
vacuum or wash to remove dust. Keeping the
fan blades clean will reduce noise and
improve the capacity and efficiency of the
heating system. Take care to avoid wetting
the motor! Remove the motor if required.
external pump
The circulating pump is water lubricated and
should require no regular maintenance. If the
pump fails to start at the beginning of the
heating season, follow the instructions in the
Trouble Shooting section of this manual
below.
RUNNING THE PUMP WITH THE
ISOLATION VALVES CLOSED OR WITH
NO WATER IN THE SYSTEM WILL
DAMAGE THE PUMP
NOTE: THE MAXAIR™ FAN COILS ARE NOT TO BE USED FOR TEMPORARY HEAT
DURING CONSTRUCTION. USE FOR THIS PURPOSE WILL VOID EQUIPMENT WARRANTY.
UNIT TROUBLESHOOTING .
external pump does not run
In areas where hard water is present the
pump may “stick” and fail to run after long idle
periods. Often this can be freed by closing
the isolation valve on the return leg and
opening the drain port so full city water
pressure flows through the pump. If this fails
to free the pump, removal for cleaning or
replacement is necessary.
external pump is noisy at start-up
Air is present in heating loop. If sound has
not diminished within 1 minute, purge air in
accordance with the
Start-Up procedures.
Check to make sure branch connections for
heating loop are horizontal.
water heater T&P is weeping
A check valve or back-flow preventor has
been installed in the system. Some form of
pressure relief may be required.