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V−START-UP − OPERATION
A−Preliminary and Seasonal Checks
1− Make sure the unit is installed in accordance with the
installation instructions.
2− Inspect electrical wiring, both field and factory installed for
loose connections. Tighten as required.
3−
Check voltage at disconnect switch. Voltage must be with-
in range listed on the nameplate. If not, consult the power
company and have voltage condition corrected be-
fore starting unit.
4− Check to ensure that refrigerant lines are in good
condition and pipe insulation is intact.
5− Inspect condition of condensate drain pan and piping as-
sembly. Disassemble and clean seasonally.
B−Cooling Start-Up
NOTE−The following is a generalized procedure and
does not apply to all thermostat control systems. Electronic
thermostat control systems may operate differently.
1− Set fan switch to AUTO or ON and move the system
selection switch to COOL. Adjust the thermostat to a
setting far enough below room temperature to bring on
the compressor. Compressor will start and cycle on de-
mand from the thermostat. After a 30 second time delay
(approximate) the indoor blower will energize.
2− The refrigerant circuit is charged with R−22 or R−410
refrigerant. See condensing unit rating plate for cor-
rect charge amount.
3− Refer to the correct condensing unit service manual for
more information.
C−Heating Start-Up
1− Set the fan switch to AUTO or ON and move the sys-
tem selection switch to HEAT. Adjust the thermostat
setting above room temperature.
2− The indoor blower and the electric heat will stage on based
on sequencer timing.
D−Safety or Emergency Shutdown
Turn off unit power at circuit breaker.
E−Extended Period Shutdown
Turn off thermostat or set to UNOCCUPIED" mode. Turn
off power to unit. All access panels and covers must be in
place and secured. The condensate assembly should be
clean and dry for extended period shutdown.