Fig - 5 Conversion for Horizontal Right Applications Using A-Coil
Air Ducts
Connect the supply-air duct over the outside of the 3/4-in. flanges provided on the supply-air opening. Secure the
duct to the flange, using proper fasteners for the type of duct used, and seal the duct-to-unit joint. If return-air
flanges are required, install factory-authorized accessory kit. Use flexible connectors between ductwork and unit to
prevent transmission of vibration. When electric heater is installed, use heat-resistant material for flexible connector
between ductwork and unit at discharge connection. Ductwork passing through unconditioned space must be
insulated and covered with vapor barrier.
A. Ductwork Acoustical Treatment
Metal duct systems that do not have a 90° elbow and 10 ft of main duct to first branch takeoff may require internal
acoustical insulation lining. As an alternative, fibrous ductwork may be used if constructed and installed in
accordance with the latest edition of SMACNA construction standard on fibrous glass ducts. Both acoustical lining
and fibrous ductwork shall comply with National Fire Protection Association as tested by UL Standard IK I for Class
I air ducts.
Make Electrical Connections
Refer to unit nameplate for required supply voltage, fan and heater amperage and required circuit amp. Refer to
unit wire diagram for unit and field wiring. Make sure all electrical connections are in accordance with unit wiring
diagram and all applicable codes. The fan motor(s) should never be controlled by any wiring or device other than
the factory-supplied control board and remote control. All field wiring must be in accordance with governing codes
and ordinances. Any modification of unit wiring without factory authorization will invalidate all factory warranties and
nullify any agency listings.
- Select proper wall location to fix display pad
- Connect communication cable end to its location in the PCB as shown in the wiring diagram.
Follow local/national wiring regulations and code for all wiring to the unit, in absence of local codes use power
supply wires sizes which are at least 1.25 times the unit’s full load current and circuit breaker size 2 - 2.25 times
the unit’s full load current.
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