Wiring Procedure - Honeywell AQ250 Series Product Data

4. For any additional Expansion Zoning Panels, repeat
steps 1–3.
WIRE
CHANNEL
PLUGS
Fig. 3. Orientation of wire channel plugs for creating pass-through wire channel and
Mount and Wire Thermostats in the Zones
Install the thermostats on the walls in the zones that are to be
controlled by the AQ250 Control Panel.
When using AQ1000 thermostats refer to the installation
instructions included with the AQ1000 thermostats.
If not done already, run low voltage thermostat wire (24 gauge
or heavier) from the thermostats back to the Zoning Modules
connected to the AQ250 Control Panel.
NOTES: If not otherwise specified, low voltage wiring should
be run with 18 gauge thermostat wire and line voltage
wiring should be run with 14 gauge wire. AQUATROL
line voltage screw terminals are only approved for use
with 22 to 12 gauge copper conductors.
Several wiring diagrams are included in this docu-
ment. For additional information, refer to
http:// customer.honeywell.com or your local distribu-
tor.
WIRE
CHANNEL
PLUGS
for joining Control Panel to Expansion Zoning Panels.
5
AQ250 SERIES HYDRONIC CONTROL PANELS

3 WIRING PROCEDURE

The AQ250 Control Panel is pre-wired at the factory, making
for faster installation.
For all models, the low voltage output terminals located at the
top of the transformer secondary are wired to the R and C input
terminals of the Control Module, as well as the R and C inputs
of the Zoning Module. The B-B Exp. Bus terminals (13 and 14)
of the Control Module are wired to the B-B Exp. Bus IN
terminals of the Zoning Module.
Beginning with the top left of Fig. 4 on page 6 and moving
clockwise around the panel, wire components to the AQ250
Control Panel and Expansion Zoning Panels (if installed) in the
following six steps:
• "Step 1 – Transformer Wiring" on page 6
• "Step 2 – Control Panel Wiring" on page 6
• "Step 3 – Thermostats Wiring" on page 8
• "Step 4 – Zoning Equipment Wiring" on page 8
• "Step 5 – Line Voltage System Outputs" on page 10
• "Step 6 – Connection To Line Voltage Power" on page 13
M23733A
68-0306—05