Honeywell AQ250 Series Quick Installation Manual page 7

NOTE: Wiring Zone Valves With End Switches -
Transformers VA.
If low voltage zone valves with end switches are
used for zone control, make sure the selected zone
valves do not draw more power ("VA") than the 38 VA
capacity of the AQ10X38 transformer supplied with
the AQ250 Control Panels. This integral transformer
has enough power to operate 4 motorized zone
valves (such as Honeywell V8043E valves or 4
valves using low-amperage draw "heat motor" actua-
100 VA
TRANSFORMER
115 VAC
1
1
2
3
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
Step 5 Line Voltage System Outputs (Boiler Pump, DHW
Device, Aux Output)
See Figures 12a and 12b for wiring diagrams for the line
voltage outputs. Follow general instructions below for
wiring of these pumps to the AQ250 Control Module.
115 VAC
AQ1000
THERMOSTATS
ZONE 1 ZONE 2 ZONE 3 ZONE 4
24 VAC
USING AN AQ1574V4
VALVE ZONING MODULE
Zone 1 Zone 2 Zone 3
1
2
3
1
2
3
1
2
3
Fig. 11 Wiring of additional low voltage VA capacity
AQ250 SERIES HYDRONIC CONTROL PANELS
tors such as Honeywell MV100 actuators), plus
power the electronics of the AQ250's Control Module
and up to 16, AQ1000 thermostats. If zone valves
with high-amperage draw "heat motor" actuators are
used, such as Taco 500 series zone valves, an addi-
tional 24 Vac transformer of sufficient VA capacity will
need to be wired to the Zoning Module to power the
valves. See Figure 11 for recommended wiring of
additional low voltage VA capacity to AQ2000 Series
Zoning Modules.
100 VA
1
TRANSFORMER
Zone 4
24 VAC
1
2
3
NOTE: It is not necessary to connect the boiler equipment's
"T-T" terminals to the low voltage BOILER dry con-
tacts (Terminals 11-12) of the AQ250 when using a
Triple Aquastat on the boiler.
7
AQ1000
THERMOSTATS
ZONE 1 ZONE 2 ZONE 3 ZONE 4
USING AN AQ1554P2
PUMP ZONING MODULE
Zone 1
Zone 2 Zone 3 Zone 4
1
2
3
1
2
3
1
2
3
M13866A
69-1982