Honeywell AQ25A Series Technical Reference Booklet page 118

AQ252 Universal Injection/Mixing Boiler Reset Control Panels
16 AQ1000 thermostats. If zone valves with high-
amperage draw heat-motor actuators are used (such
as Taco 500 series zone valves), additional 24 Vac
transformer capacity will need to be wired to the
Zoning Module to power the valves. See Fig. 14 on
page 12 for recommended wiring of additional low
voltage VA capacity to AQ2000 Series Zoning
Modules.
115 VAC
1
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
69-1986—02
100 VA
TRANSFORMER
THERMOSTATS
ZONE 1 ZONE 2 ZONE 3 ZONE 4
24 VAC
USING AN AQ15740B
VALVE ZONING MODULE
Zone 1 Zone 2
1
2
3
1
2
3
1
2
3
Fig. 14. Wiring of additional low voltage VA capacity.
CAUTION
Equipment Damage Hazard.
Can damage internal circuitry of Zoning Module.
The ES1 and ES2 terminals of the AQ15740B Zoning
Module are powered terminals and must only be
connected to a set of dry contacts, such as a zone
valve motor's end switch. If power is applied to these
contacts (for example, by running line voltage through
the zone valves' end switches to bring on a circulator
feeding those valves), the internal circuitry of the
Zoning Module will be damaged, in which case the
warranty for this product will be voided.
100 VA
1
TRANSFORMER
115 VAC
Zone 3 Zone 4
24 VAC
1
2
3
12
THERMOSTATS
ZONE 1 ZONE 2 ZONE 3 ZONE 4
USING AN AQ15540B
PUMP ZONING MODULE
Zone 1 Zone 2 Zone 3
1
2
3
1
2
3
1
2
3
1
2
3
M27691A
Zone 4