Servicing Units Void Of Charge; Start-Up - Haier GE Appliances NS18AT Service Manual

Accessories
For update-to-date information, see any of the following pub-
lications:
• GE Appliances NS18AT Product Specification bulletin
• GE Appliances Product Catalog

Servicing Units Void of Charge

If the outdoor unit is void of refrigerant, clean the system
using the procedure described below.
1 - Leak check system using procedure outlined on page
17.
2 - Evacuate the system using procedure outlined on
page 18.
3 - Use nitrogen to break the vacuum and install a new
filter drier in the system.
4 - Evacuate the system again using procedure outlined
on page 18.
5 - Weigh in refrigerant.

Start-Up

IMPORTANT
If unit is equipped with a crankcase heater, it should
be energized 24 hours before unit start-up to prevent
compressor damage as a result of slugging.
1 - Rotate fan to check for binding.
2 - Inspect all factory and field-installed wiring for loose
connections.
3 - After evacuation is complete, open the liquid line and
suction line service valves to release the refrigerant
charge (contained in outdoor unit) into the system.
4 - Replace the stem caps and tighten as specified in
Operating Service Valves on page 6.
5 - Check voltage supply at the disconnect switch. The
voltage must be within the range listed on the unit's
nameplate. If not, do not start the equipment until
you have consulted with the power company and the
voltage condition has been corrected.
6 - Set the thermostat for a cooling demand. Turn on
power to the indoor indoor unit and close the outdoor
unit disconnect switch to start the unit.
7 - Recheck voltage while the unit is running. Power must
be within range shown on the nameplate.
8 - Check system for sufficient refrigerant by using
the procedures listed under Start-Up and Charging
Procedures.
9 - Recheck voltage while the unit is running. Power must
be within range shown on the nameplate.
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