AAON F1-060, Installation, Operation & Maintenance Manual, Page: 16 / 56

16
Lifting and Handling the Unit
Before lifting unit, be sure that all shipping
material has been removed from unit.
Care should be taken if using spreader bars,
blocking or other lifting devices to prevent
damage to the cabinet, coil or fans.
Sealing
It is very important to keep outside air from
infiltrating the unit cabinet. Seal all piping
penetrations with Armaflex, Permagum, or
other suitable sealant. Also seal around drain
connections, electrical connections, and
other inlets where air may enter the cabinet.
This is especially important when the unit is
installed in an unconditioned area.
Cooling Equipment
Acceptable system design and installation
will include consideration as follows:
Piping from the condensing unit to the
indoor air handling unit is the responsibility
of the installing contractor.
Only clean “ACR” tubing should be used.
Piping should conform to generally accepted
practices and codes.
Care must be taken not to cross the circuits
on reheat systems.
Once piped, the interconnecting piping and
air handling unit
MUST BE evacuated to
500 microns or less; leak checked and
condenser shutoff valves opened to allow
refrigerant flow to air handling unit. Charge
unit with R-410A refrigerant to the
recommended superheat/sub-cooling in the
Charging Refrigerant section of this manual.
Make sure air handling unit thermal
expansion valve bulb is mounted with
good thermal contact on the suction line
on a horizontal section, close to the
evaporator but outside the cabinet in the
4 or 8 o’clock position and well insulated.
Lines should be fastened and supported
according to local codes.
Heating Equipment
Hot Water Heating:
Water supply lines must be insulated,
properly fastened, drained and supported
according to local code requirements.
Electric Heating:
Installing Electric Heat Strip into the
Unit:
1. Remove front control panel(s) of the unit
2. Remove screws and panel covering heat
strip compartment
3. Open the heat strip kit and remove
assembly from package
4. Install strip heat into opening and secure
with 4 (four) screws
5. Install breaker assembly on bracket and
secure with breaker with 4 (four) screws
6. Make sure that breaker is in the OFF
position
7. Connect all control wires per wiring
diagram included in the unit
UNIT HANDLING
Incorrect lifting can cause damage to
the unit, injury or death. Lifting
equipment capacity should exceed
unit weight by an adequate safety
factor. Always test lift unit not more
than 24 inches high to verify proper
center of gravity lift point.
WARNING