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DIP Switch
1
DHW Device: Pump or Valve
2
DHW Priority: Off or Priority
DHW
DHW Priority Override: Off or O/Ride (override)
3
BOILER POST PURGE LOCATION: OFF = ZONES ONLY; PURGE = DHW
4
TANK FIRST, THEN ZONES
5
Aux output: Main = default; Group = group pump
Aux.
6
Aux output: Main = default; Bypass = boiler bypass pump
Load Mass: Lo = Low mass (baseboard); Hi = High mass (radiant slab)
7
Mass
Not used at this time
8
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 3 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 3 for the
correct DIP switch settings for the Pump or
Valve 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 disables 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
valves. The valve logic induces a delay before
activating the boiler pump even when zone
pumps are used. When Zone Synchronization is
not selected, the zone demands are served
whenever they call for heat.
• The Zone Synchronization feature replaces the
pump/valve selection of previous AQ2000
versions.
Table 2. AQ15000B Control Module DIP switch arrangement
Switch Description
AQ250 SERIES HYDRONIC CONTROL PANELS
3.
4. DIP Switch 8 functionality:
• The factory setting enables 1-stage per zone
thermostat. The zoning module operates as four
1-stage zones.
• When using a 2-stage thermostat, set DIP
switch 8 to 2-Stg. The 2-stage selection uses
TH1 and TH2 inputs for 2-stage thermostat
control. For the selected zone, TH1 is the first
stage input from the thermostat and TH2 is the
second stage input. Inputs TH3 and TH4
operate in same manner. The 2-stage selection
reduces the zoning module to a 2 zone module
from a 4 zone module.
• When using digital 2-stage thermostats (non
AQ1000 thermostats), the system set-up
process changes slightly. During system set-up,
create an artificial demand on the zoning
module by increasing the set point on the
thermostat. The artificial demand is required
during the PRI/SEC setup menu to select the
primary and secondary loop for each zone and
stage.
Review the settings of all DIP switches for each Zoning
Module connected to an AQ15000B, to ensure they are
correct before system start-up.
When you finish setting the DIP switches for all the Zoning
Modules, replace the cover of each Expansion Zoning
Panel.
NOTE: The snap-on DIP switch covers are designed so
they cannot be removed (exposing the DIP
switches) when the front cover of the AQ250 Con-
trol Panel is in place.
15
Label and Factory Settings
AQ15000B
Diagnostic
Diagnostic
Test
Test
M23719A
68-0306—07
M29043
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