Configure The Expansion Zoning Panel(S) Dip Switches - Honeywell AQ25A Series Technical Reference Booklet

AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS
insensitive, so it does not matter which of the BB
"Exp.Bus OUT" terminals is connected to which of the B-
B "Exp.Bus IN" terminals.
4. Wire the zoning equipment to the output terminals
(bottom edge) of the Expansion Zoning Panel – line
voltage circulators or valves for the AQ25542B and
AQ25582B and low voltage zone valves for the
AQ25742B and AQ25744B.
5. Bring power to the Expansion Zoning Panel as follows:
a. AQ25542B: run 14 AWG jumper wires from the N
and L terminals on the bottom of the AQ2000 Series
Control Panel's AQ10X38 transformer to the N and L
terminals on the bottom of the AQ15540B module.
b. AQ25582B: run 14 AWG jumper wires from the N
and L terminals on the bottom of the AQ2000 Series
Control Panel's AQ10X38 transformer to the N and L
terminals on the bottom of EACH AQ15540B Zoning
Module.
c. AQ25742B: run 14 AWG jumper wires from the N
and L terminals on the bottom of the AQ2000 Series
Control Panel's AQ10X38 transformer to the N and L
terminals on the bottom of the AQ25742B's
transformer module (AQ10X38).
d. AQ25744B: run 14 AWG jumper wires from the N
and L terminals on the bottom of the AQ2000 Series
Control Panel's AQ10X38 transformer to the N and L
terminals on the bottom of the AQ25744B's
transformer module (AQ10X38).
The AQ255 / AQ257 Expansion Zoning Panels can control up
to 4 space heating zones (or 8, for the AQ25582B Expansion
Zoning Panel). The heart of each Expansion Zoning Panel is
its Zoning Module. The corresponding Panels and Modules are
shown in Table 1 on page 2.
For the -42B and -82B Panels, line voltage pumps are used for
the zoning equipment so low voltage (24 Vac) power is not
required. That's why there isn't a transformer included with
these Panels. A small amount of low voltage power is required
to power the electronic components inside the Zoning
Modules, and this is supplied by jumper wires connecting the R
and C terminals of the AQ2000 Series Control Panel's
AQ10X38 transformer with the R and C terminals on the
AQ15540B Zoning Module.
For the -42B and -44B Valve Panels, an AQ10X38 transformer
is included to provide sufficient low voltage power to drive the
zone valves.
4 CONFIGURE THE EXPANSION
ZONING PANEL(S) DIP SWITCHES
Setting up the AQ255 / AQ257 Expansion Zoning Panels is
quick, simple and straightforward. All that's needed is to check
and if necessary adjust, the DIP switch settings.
For all Expansion Zoning Panels, DIP switches are located
behind the blank cover in the left most section of the Zoning
Module (beside the section labeled Zone 1). Refer to Fig. 4.
The DIP switches come pre-set from the factory with default
settings that are the most commonly-used by hydronics
contractors across North America. That means that most of the
settings only need to be checked by the installing contractor to
make sure they're suitable for the job, rather than having to
adjust the DIP switch settings from scratch, which is a great
time savings.
69-1981—03
Although for many installations, these factory default DIP
switch settings will be suitable, Honeywell recommends that
they be reviewed and changed, as necessary, to get optimal
performance of the hydronic system controlled by the AQ2000
Series products.
Expansion 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. 4. A chart of the different settings for each DIP
switch is affixed to the inside of the DIP switch covers.
More detailed explanations for these DIP switch settings,
including the pre-set factory defaults for each, are shown in
Table 2 on page 7.
Fig. 4. Location of concealed DIP switches for AQ155 /
AQ157 Expansion Zoning Modules.
Expansion Zoning Module DIP Switch Settings
Refer to Table 2 on page 7 and check all DIP switch settings. If
necessary, change the switch settings to suit the desired
operation of the hydronic installation.
1. DIP switches #1-4 define the identity (or address) of
each zone on the AQ network. This is how the Control
Module knows that, for example, the zone labeled
Zone 1 on the first Zoning Module is different than the
zone labeled Zone 1 on another Zoning Module.
NOTE: If more than one Zoning Module is connected to an
AQ2000 Series Control Panel, DIP switches #1-4
must be set to uniquely identify each Module and its
zones. If any of these four DIP switches is set to the
right hand (ON) position for two or more zoning mod-
ules - for example, if two zoning modules both have
their DIP switch #1 in the ON position - the AQ2000
Series control will operate unpredictably.
a. For the first Zoning Module connected to an AQ2000
Series Control Module (this first Zoning Module is
often included as a component of the main AQ2000
6
M23731