– 13 –
Wire Size
Maximum Length
#24
400 ft
#22
600 ft
#20
900 ft
#18
1500 ft
#16
2000 ft
Desk Control
Servicing / Chassis Quick Change Outs
The chassis is designed for quick disconnected
and change out. For minor electrical service,
the control box cover lifts straight up after the
screws and disconnect head are removed. For
major electrical, refrigeration and fan service the
chassis may be removed from the utility closet.
To Remove the Chassis from the Closet
:
1. Disconnect the power coming into the
Zoneline from the main breaker panel or the
closet mounted disconnect.
2. Switch the wall thermostat off.
3. Pull the Power Disconnect located in the front
of the chassis.
4. Disconnect the electrical connection.
5. Disconnect the duct work.
6. Disconnect the condensate drain on 9-18,000
BTU models (refer to the
Installation
section
of this service guide).
7. Slide the chassis out of the wall plenum.
8. Lift the chassis out of the utility closet.
Auxiliary Fan Control
Service
The GE Vertical Zonelines electronic control has
built-in provisions for connection to an external
switch to control power to the GE Vertical
Zoneline. The switch can be a central desk
control system or even a normally open door
switch.
For desk control operation, connect one side of
the switch to the D1 terminal and the other at the
D2 terminal (see Figure 1 under
Low Voltage
Interface Connections
). Whenever the switch
closes, the GE Vertical Zoneline operation will
stop.
Maximum Wire Length for Desk Control
Switch
The electronic control also has the ability to
control a 24 VAC relay to activate an auxiliary,
or transfer fan. The outputs are listed as F1 and
F2 on the interface connector (using Figure
1 and Table 1 under
Low Voltage Interface
Connections
).
To connect the relay, simply wire one side of the
relay to F1 and the other side to F2. Anytime that
the fan runs, the terminals will send a 24 VAC
signal to the relay. The relay must be 24 VAC, 50
mA or less.
NOTE
: The Desk Control, Auxiliary Fan relay and
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Summary of Contents for GE Vertical Zoneline AZ90E09D C
Page 48: ...48 Schematic...
