Safety Considerations; Field-Supplied Hardware - Carrier VVT Zone II Installation And Startup Manual

Safety Considerations

CAUTION
Air conditioning equipment will provide safe and reliable service when operated within design specifications. The
equipment should be operated and serviced only by authorized personnel who have a thorough knowledge of
system operation, safety devices, and emergency procedures.
Good judgment should be used in applying any manufacturer's instructions to avoid injury to personnel or damage
to equipment and property.
WARNING Electrical Shock Hazard
Failure to follow this warning could cause personal injury, death, and/or equipment damage.
Disconnect all power to the unit before performing maintenance or service. Unit may automatically start if power is
not disconnected.
WARNING Follow all local, state, and federal laws regarding disposal of equipment containing hazardous
materials such as mercury contactors.

Field-supplied hardware

Each zone controller installation requires the following field-supplied components:
•
zone terminal unit
•
round or rectangular mounting bracket
•
space temperature sensor
•
supply air temperature sensor
• 2x4 in. standard single gang electrical box
• transformer — 24 Vac, 40 VA
•
two no. 10 x 1/2-in. sheet metal screws (to secure SAT sensor to duct)
•
two no. 6-32 x 5/8-in. screws (to mount space temperature sensor base to electrical box)
•
wiring
•
bushings (required when mounting SAT sensor in a duct 6-in. (15.2 cm) or less in diameter)
Optional:
• contractors (if required for fan or electric heat)
•
indoor air quality sensor
•
relative humidity sensor
•
2 screws and 2 hollow wall anchors (to mount relative humidity sensor directly to wall)
•
valve and actuator for hot water heat (if required)
VVT Zone II Controller
Installation and Start-up Guide
5
Introduction
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