AQ25A SERIES PROGRAMMABLE BOILER CONTROL PANELS
13 69-2119—02
3. Line Voltage Rated Aux Output (Aux. Pump)
To connect a line voltage auxiliary device to these contacts,
such as a group pump or a boiler bypass pump, power the
pump from the N and L terminals on the bottom of the AQ15A
Control Module, running the L (hot) lead through the
AUX.Pump contacts. See Fig. 16 for details.
The Aux Pump is a line voltage rated dry contact that is
controlled by the selection in the EQUIPMENT SETUP >
AUXILIARY I/O sub-menu (see Fig. 25 on page 38).
NOTE: Use of this output is optional. The Aux. pump dry
contacts are line voltage-rated but unpowered. A low
voltage device can be connected to these
programmable contacts, but the wire's insulation must
meet applicable codes for use in line voltage
enclosures.
See page 30 for programming options for the Aux.
Pump dry contacts.
Wire the Installer-defined AUXiliary output to the line voltage
AUX terminals, as shown in Fig. 17. The exact wiring
schematic will depend on what is connected to these dry
contacts.
Fig. 16. Wiring of the Aux. pump line voltage rated dry contacts [example shown is for a by-pass pump].
Fig. 17. Wiring for Boiler Pump, DHW Device, and Aux Output.
Step 6 – Connection to Line Voltage Power
Connect the N and L line voltage inputs of the primary on the
AQ25A transformer to the electrical distribution panel and
power up the Control. A service switch should be installed on
the hot (L) lead to the distribution panel.
If multiple Zoning Modules are connected to the AQ25A
Control Panel, the line voltage wiring can either be run directly
from the N and L terminals on the transformer to each Zoning
Module (Fig. 18) or run in a daisy chain fashion from the N and
L terminals of one AQ2000 component to the N and L
terminals of the next AQ2000 (see Fig. 19 on page 14).
Fig. 18. Connections for multiple Zoning Panels - parallel wiring.
BY-PASS PUMP
M27764A
TO AUXILIARY DEVICE
(INSTALLER-DEFINED)
FROM LINE VOLTAGE
120V TERMINALS
(N AND L) ON BOTTOM
OF TRANSFORMER
M27765A
AQ25A
Zone 1
Zone 2
Zone 3
Zone 4
Zone 1
Zone 2 Zone 3
Zone 4
Zone 1
Zone 2 Zone 3
Zone 4
M27766A
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