can also be
Each unit shall have 4 condenser fan motors. A high static drive option is available for applications with a higher CFM and/or static pressure requirement. All compressors include crankcase heat and internal pressure relief. Every refrigerant circuit includes an expansion valve, a liquid line
Description
ZJ units shall be
ZR units shall be
ZF units shall be
The 20 and 25 ton units shall have a minimum EER rating of 10.
They shall have
Unit Cabinet
Unit cabinet shall be constructed of G90 galvanized steel, with exterior surfaces coated with a
Indoor (Evaporator) Fan Assembly
Fan shall be a belt drive assembly and include an adjustable- pitch motor pulley. Job site selected (B.H.P.) brake horsepower shall not exceed the motors nameplate horsepower rating, plus the service factor. Units shall be designed not to operate above service factor. Fan wheel shall be
A variable air volume (VAV) option using a variable frequency drive (VFD) is available for applications requiring a constant supply duct static pressure. Units equipped for VAV shall be controlled by a duct pressure transducer with a 0 - 5” WC pressure range. The pressure transducer shall provide a 0 - 5 VDC output signal to a VAV control board which, in turn shall provide a 2 - 10 VDC speed reference signal to the VFD. The VAV control board shall operate using
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