NOTICE
A Start Assist Kit is available and
recommended for long refrigerant piping
applications or in areas of known low voltage
problems. The kit may be required when a
TXV is used (refer to the Tabular Data Sheet to
determine if applicable).
5. Mount the thermostat about 5 ft above the floor,
where it is exposed to normal room air circulation.
Do not place it on an outside wall or where it is
exposed to the radiant effect from exposed glass or
appliances, drafts from outside doors or supply air
grilles.
6. Route the 24 V control wiring (NEC Class 2) from
the outdoor unit to the indoor unit and thermostat.
NOTICE
To eliminate erratic operation, seal the hole in
the wall at the thermostat with permagum or
equivalent to prevent air drafts affecting the
operation of the thermostat.
Field wiring
Figure 14: Typical field wiring (air handler/electrical heat) (single-phase)
R-410A Outdoor Split-System Air Conditioning18
Johnson Controls Ducted Systems
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