Honeywell AQ25A Series Technical Reference Booklet page 296

AQ2000 Series - hydronic Controls Product Selector
When using AQ2000 controls, selecting components could not be easier. All it takes are four easy steps.
1.
Boiler Supply Water Temperature – will the AQ2000 control panel provide boiler reset control?
2.
Zoning equipment – pumps, valves, 2-wire or 4-wire/end switch
3.
Number of space heating zones – do not include DHW in total number of zones
4.
For Systems With More Than 2 Controlled Water Temperatures – each additional mixed temperature
will require an AQ2541E0 expansion control panel plus sufficient zoning modules to manage the zones
associated with the additional water temperature
1 Zone
2 – 4 Zones
AQ2504B2 + AQ2554P2X
AQ25A4B2 + AQ2554P2X
5 – 8 Zones
AQ2504B2 + AQ2558P2X
AQ25A4B2 + AQ2558P2X
9 – 12 Zones
AQ2504B2 + AQ2558P2X
AQ25A4B2 + AQ2558P2X
13 – 16 Zones
* Panels come with 4 zones pre-wired from factory.
12
No Reset
Zone Zone Valves Without
Pumps End Switches
AQ2504B2
AQ2504B2
or
AQ2504B2 + AQ2554P2X
or
AQ25A4B2 + AQ2554P2X
or
AQ2504B2 + AQ2554V2 (2)
or
AQ25A4B2 + AQ2554V2 (2)
+ AQ2554P2X
or
+ AQ2554P2X
AQ2504B2 + AQ2554V2 (3)
or
AQ25A4B2 + AQ2554V2 (3)
Zone Valves With
End Switches
AQ2511B0
AQ2514B2
AQ2504B4
AQ2514B2
+ AQ2554P2X
AQ2504B4 + AQ2554P2X
or
AQ25A4B4 + AQ2554P2X
AQ2514B2
+ AQ2558P2X
AQ2504B4 + AQ2554V4 (2)
or
AQ25A4B4 + AQ2554V4 (2)
AQ2514B2
+ AQ2558P2X
+AQ2554P2X
AQ2504B4 + AQ2554V4 (3)
or
AQ25A4B4 + AQ2554V4 (3)
Reset
One System Temperature
Zone Zone Valves Without
Pumps End Switches
AQ2514B2
AQ2514B2
+ AQ2554V2
AQ2514B2
+ AQ2554V2 (2)
AQ2514B2
+ AQ2554V2 (3)
Re
Zone Valves With
End Switches
AQ2514B4
AQ2514B4
+ AQ2574V4
AQ2514B4
+ AQ2574V4 (2)
AQ2514B4
+ AQ2574V4 (3)