INSTALLATION
The complete shipment should be inspected for damage. Any damage, visible or concealed, should be reported immedi-
ately to the delivery man or driver and noted on the shipping invoice.
Place unit in position and make sure that unit is level. This is important to assure proper drainage and operation. Slots
provided in the mounting brackets should be used for installing the units.
ELECTRICAL
Please ensure power supply (V-Ph-Hz) to the unit is as per unit nameplate requirements.
Caution:
Operation of the unit on improper power supply will result in damage to the unit.
Warning:
Before installation or servicing, always TURN OFF all power to the unit. There may be more than
one disconnect switch. Ensure all of them are turned off.
GROUND & POWER WIRES
Connect power wires as per wiring diagram. Connect ground wire to the ground lug inside the control box.
MAINTENANCE
COIL
Coil may be cleaned by removing and brushing between fins with a stiff wire brush. Brushing should be followed by
cleaning with vacuum cleaner. The coil may also be cleaned by using a high pressure air, if compressed air source is
available. It should be pointed out that if air filters are used and periodically cleaned, the coils will not be clogged up
prematurely.
DRAIN PIPE
Drain pipe should be checked before summer operation of unit. If it is clogged, steps should be taken to clear the debris
so that condensate will flow out easily. A standard pipe cleaner for 1/2" ID pipe may be used. Periodic checks of the drain
pipe should be taken during summer operation, as there is a possibility of it becoming clogged with dirt.
FILTER CLEANING
Remove access panel, slide filter out of filter rack, and clean as follows:
Tap filter on solid surface to dislodge heavy particles. Wash under stream of hot water. If filter has been put to excep-
tional service, a mild solution of Sal-Soda, Tri-Sodium Phosphate or any other commercial solvent can be used. Set filter
on end with slots in frame down, which allows it to drain. Filters should dry thoroughly before reuse.
REPLACEMENT PARTS
When writing for replacement parts, refer to model number and serial number on the nameplate of the unit.
ROUTINE/PREVENTIVE MAINTENANCE
- Clean the thermostat box with a dry soft cloth.
- Remove the filter by either:
a) Swinging away the knuckles on top of the filter rack then lifting the filter from the lower rack.
b) Swinging away the knuckles on top of the filter rack then sliding the filter sideways.
c) Clean the filter by a jet of air in the reverse return air direction.
d) Inspect the condensate pipe for clogging.
SAFETY INSTRUCTIONS
Warning:
Before you attend to any routine maintenance, make sure that the electrical power is disconnected.
- Avoid spilling any liquid on the thermostat
- Always allow for 1 to 2 minutes before activating different commands.
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