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priceindustries.com |FAN POWERED CONSTANT VOLUME TERMINALS - Manual
FAN POWERED CONSTANT VOLUME TERMINALS
INSTALLATION & MOUNTING INSTRUCTIONS
Duct Connection
1. Recommend a minimum of 3 duct diameters of straight inlet duct, either sheet metal or flexible, same size as the inlet,
between the unit inlet and any transition, take-offs or fittings. Use of transitions or elbows at the unit inlet to be avoided. Where
flexible duct is used it should be pulled tight to eliminate sags or folds.
2. To control radiated noise in critical applications it is recommended that the inlet ducts be fabricated of minimum 24 gauge
sheet metal in place of flexible duct.
3. To prevent excessive air leakage, all cleat joints should be sealed with an approved duct sealer. This applies to all accessory
connections as well as the basic fan powered terminal unit.
4. Holes that are drilled in the duct for testing or balancing purposes are to be sealed with duct tape or duct sealer.
Control Connections
Digital
If controls have been factory mounted, a wiring diagram will be included with the unit indicating the factory mounted components.
For field wiring of room sensors and other accessories, refer to the controls contractor’s documentation for all wiring information.
Electrical Connection
CAUTION: Disconnect all incoming power before any electrical installation or service is performed on the unit(s).
1. All field wiring is to be in accordance with the National Electrical Code ANSI/NFPA No. 70 or the Canadian Electrical Code,
Part 1, CSA Standard C 22.1. Local codes and the National Electrical Code requirements take precedence over manufacturer
recommendations, and adherence to these codes shall be the responsibility of the installing contractor.
2. Refer to the product identification label on each unit for information to determine the field wire size.
3. Check voltage requirements prior to power supply connection. Refer to the electrical label located on the electrical control box
and also refer to the schematic drawing provided on the underside of the electrical control box cover. If an Electric Reheat Coil
has been supplied, refer to the electrical schematic prior to hook-up.
4. If upon energizing the electric motor excessive noise is apparent, shut down the unit. Determine the cause by checking for
packing materials, etc. and re-energize after corrective action has been taken.
CAUTION: For three phase power connections, be sure to account for fan motor load. Phases must be balanced accordingly.
Cooling/Heating Coils
Prior to the water system start-up and balancing, the chilled/hot water systems should be flushed to clean out dirt and debris,
which may have collected in the piping during construction.
During this procedure, all unit service valves must be in the closed position. This prevents foreign matter from entering the unit and
clogging the valves and metering devices. Filters should be installed in the piping mains to prevent this material from entering the
units during normal operation. During system filling, air venting from the unit is accomplished by the use of the standard manual air
vent fitting installed on the coil. Manual air vent fitting: the screw should be turned counterclockwise no more than 1-1/2 turns to
operate the air vent.
CAUTION: The air vent provided on the unit is not intended to replace the main system air vents and may not release air trapped
in other parts of the system. Inspect the entire system for potential air traps and vent those areas as required, independently. In
addition, some systems may require repeated venting over a period of time to properly eliminate air from the system.
