Start Up For Units Equipped For Fer; Direct Drive - York International ZQ Series Installation Manual

Figure 31: 3 Thru 5 Ton, 1/2" Two Stage Gas Valve

Start up for Units Equipped for FER

This section applies to single phase gas heat only.

Direct Drive

Direct drive FER units come from the factory with
the following three leads that lead to the indoor
motor.
• A yellow cooling lead
• A red heating lead
• A white, fan only lead
Each lead is put on a different tap on the motor
and provides different speeds. The leads are set
on default taps from the factory. See the wiring
diagrams for details on factory default speeds.
During installation, you may need to move the leads
to different taps depending on the airflow and static
requirements of the application.
Note: During installation, the tap chosen for
the heating speed must produce a temperature
rise that lies within the rise range stated on the
rating plate and the physical data tables.
80 INSTALLATION MANUAL ZQ SERIES 3 - 5 ton 60 Hertz R-410A
Johnson Controls Ducted Systems