Installation Guide

69-2122—05 2
E Zoning Module DIP Switch Settings
NOTE: When wiring zone valves with end switches, note the
transformer's 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 AQ25A
Control Panel. 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 actuators such as
Honeywell MV100 actuators), plus power the
electronics of the AQ25A'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, additional 24 Vac transformer capacity will
need to be wired to the Zoning Module to power the
valves. See the AQ25A Series Programmable Boiler
Control Panels - Product Data document (form 69-
2119) for recommended wiring of additional low
voltage VA capacity to AQ2000 Series Zoning
Modules.
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.
DIP
Number
Description
1 Zone Address
Slide the DIP switch to the right-hand (ON) position to indicate which group
of zones this is:
The correct settings for each zone module are:
• First Zone (1-4) Module: 1 = ON position; 2, 3, and 4 = OFF position
• Second Zone (5-8) Module: 2 = ON position; 1, 3, and 4 = OFF position
• Third Zone (9-12) Module: 3 = ON position; 1, 2, and 4 = OFF position
• Fourth Zone (13-16) Module: 4 = ON position; 1, 2, and 3 = OFF
position
For each zone group, there can be only one DIP switch in the right-hand
(ON) position.
2
3
4
5
• If set to SYNC, zone synchronization is enabled.
• If set to NOT, zone synchronization is disabled.
6
• If zone valves are normally closed (N.C.), set the NC/NO DIP switch to
the OFF position.
• If zone valves are normally open (N.O.), set the NC/NO DIP switch to
the ON position.
7
• If set to Group (ON position), the AUX Pump contacts on the Control
Module are switched when any of the zones on this Zoning Module are
active.
a
• If set to - (OFF position), the AUX Pump contacts are not affected by
activity on these zones.
a
The EQUIPMENT SETUP > AUXILIARY I/O > AUX PUMP menu option on the
AQ25A must be set to “GROUP”
8
• If set to 2-Stg (ON position), then 2-stage operation is activated on
thermostat inputs. The zoning module operates as two 2-stage zones or
3 zones (one 2-stage and two 1-stage).
• If set to 1-Stg (OFF position), then operates as four 1-stage zones.
M23715
Test
Diagnostic
Test
Diagnostic
Factory
Setting
Installer
Setting
Fill in the circle to
indicate position
of DIP switch.
M23720
A
AQ15540B
Test
Diagnostic
Test
M34972
ON
12345678