– 15 –
Small Chassis
• Power
Input
: All models are hard wired to the AC power supply. A quick disconnect is provided to
remove power from the GE Vertical Zoneline.
CAUTION
: Voltage is still applied to the input side
RIWKHGLVFRQQHFW$OORWKHUFRPSRQHQWVGRQRWKDYHSRZHUZLWKGLVFRQQHFWUHPRYHG
Fuses are in
line with supply on 265 volt models.
• Control
Boards
: A MAIN board contains the relays that operate the components. The MAIN board
receives thermostat signals and responds to operate the loads as required. Also, a DISPLAY board
is provided for displaying fault codes.
•
Heater Relay
: Used on 265 volt models which enables these models to use the full 265 volts to
the heater assembly.
• Capacitor
: All models use a dual capacitor, one section for the compressor and the other section
for the fan motor. On small chassis, this capacitor is mounted in the control area.
• Fan
Motor
: A double shaft fan motor is used on the small chassis models. They are two speed
motors and the blades are attached to the shaft with clamps.
•
Heater
0RGHOVSHFL¿FKHDWHUVDUHXVHGN:IRUDPSFLUFXLWVN:IRUDPSFLUFXLWVDQG
5.0kW for 30 amp circuits.
•
Transformer (265 volt model)
: This “auto-transformer” is mounted below the power disconnect.
The input to the transformer is fused and the output to the control board L2 is also fused.
All components EXCEPT the heater assembly are operated on 230 volts, the transformer “steps-
down” the 265 volts to 230 volts. Less components are required for stock.
• Thermistors
: Heat pump models use an indoor coil sensor, outdoor coil sensor and ambient
air sensor to determine proper operation. All three thermistors are the same resistance at room
temperature. The outdoor coil sensor is not used on AZ90 models. The ambient air sensor is
plugged directly into the main board and has short wires connected to it. No mounting bracket is
provided for it.
Summary of Contents for GE Vertical Zoneline AZ90E09D C
Page 48: ...48 Schematic...
