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Introduction
This service guide is designed to be used in conjunction with the installation manuals provided with
each GE Vertical Zoneline.
This service guide was written to assist the professional HVAC service technician to quickly and
accurately diagnose and repair any malfunctions of this product.
This guide, therefore, will deal with all subjects in a general nature (i.e.: All text will pertain to all
models).
Important
: It will be necessary to accurately identify the GE Vertical Zoneline being serviced to be
certain of a proper diagnosis and repair. (See the GE Vertical Zoneline
Nomenclature
section of this
service guide).
Changes to Design
•
No slide out chassis. Panels must be removed to service components.
•
Small chassis uses a single – double shafted fan motor.
•
All electronics are operated on 230 volt supply, 265 volt GE Vertical Zonelines have a “auto–
transformer” to step down the voltage to 230 volts for all components except the resistive heaters.
•
Large chassis models have 2 separate fan motors and capacitors.
•
Small chassis models have a heater relay.
•
Large chassis models have a compressor relay.
•
Reversing valve default for heat pump models is COOLING (Coil energized for HEAT)”.
Summary of Contents for GE Vertical Zoneline AZ90E09D C
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