Program And Configure The Control Panel - Honeywell AQ25A Series Technical Reference Booklet

Fig. 19. Alternate Connections for multiple Zoning Panels - daisy chain wiring.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment circuitry.
When line voltage is applied to the AQ252 Control
Panel and the front cover of the Panel is removed,
there is a risk of electrocution. Be careful to avoid
contact with the line voltage (N and L) terminals, either
with your fingers or with metal tools (such as a
screwdriver) when power is applied to the Control
Panel.
4 PROGRAM AND CONFIGURE THE
CONTROL PANEL
Only two steps are required to set up the AQ252 Series Control
Panel:
1. Check the program settings for the Control Module:
Operation of the AQ252's Control Module is set by the
menu selections accessible through the Control
Module's LCD screen. See "AQ252 – System
Programming" on page 17 for instructions.
2. Check the DIP switch settings for each Zoning Module.
Control Panel Defaults
Operation of the AQ252 Control Module is set by the menu
selections accessible through the Control Module's LCD
screen. See "AQ252 – System Programming" on page 17 for
instructions.
The AQ252 Control Panels are shipped from the factory with
pre-defined values for all program settings. These factory
default settings are commonly used by hydronics contractors
across North America. Usually, most of the settings only need
to be checked by the installing contractor to make sure they
are suitable for the job, rather than having to input all the
settings from scratch.
Although these factory default values for the Control Module
and each Zoning Module are suitable for many installations,
Honeywell recommends that they be reviewed, and changed
as necessary, to get optimal performance of the hydronic
system controlled by the AQ2000 Series products.
AQ252 Universal Injection/Mixing Boiler Reset Control Panels
Zone 1 Zone 2 Zone 3
Zone 4
Zoning Module DIP Switch Location
The AQ15540B (pump Zoning Module) and AQ15740B (valves
with end switches Zoning Module) both have DIP switches in
8-switch banks and are concealed behind snap-on covers, as
shown in Fig. 20.
AQ15540B
Fig. 20. Location of Zoning Modules DIP switches.
Zoning Module DIP Switch Settings
A chart of the different settings for each DIP switch is attached
to the inside of each DIP switch cover.
Refer to Table 2 on page 16, and check all DIP switch settings.
If necessary, change the switch settings to suit the desired
operation of the hydronic installation.
NOTES:
1. To set DIP switches 1 through 4, which identify the
unique address of each zone on the AQUATROL
network:
• Refer to the descriptions in Table 2 for the correct
DIP switch settings for the Zoning Module.
Unpredictable zone behavior may occur if more than
one Zoning Module has DIP switches (1-4) set to
the same address.
2. DIP Switch 5 enables or disables Zone
Synchronization:
• The factory setting enables Zone Synchronization,
which is an energy saving feature of the AQ2000
panels. Zone Synchronization coordinates zone
demands to start at the same time when the boiler
cycle begins. The AQ2000 functions as activating
15
Zone 1 Zone 2 Zone 3 Zone 1 Zone 2
Zone 4
M23731A
Zone 3 Zone 4
M27695A
69-1986—02