Honeywell Aquatrol® AQ25A44B/U Programmable Relay Boiler Control Panel, Supply/Return Sensor, DIP Switch User Interface, 4 Zones, 24 VAC 0.5 A 12 VA Boiler Output, Import

AQ25A44B MFG #: AQ25A44B/U
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Honeywell Aquatrol® AQ25A44B/U Programmable Relay Boiler Control Panel, Supply/Return Sensor, DIP Switch User Interface, 4 Zones, 24 VAC 0.5 A 12 VA Boiler Output, Import
Honeywell Aquatrol® Programmable Relay Boiler Control Panel, Supply/Return Sensor, User Interface: DIP Switch, 4 Zones, Boiler Output: 24 VAC 0.5 A 12 VA, 38 VA, 10 ft Lead Length, 2 x 14 AWG Wire, Wire-Clamp Screw Terminal, 8 in H x 16-1/2 in W x 3-3/8 in D, Import
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  • 5 to 90% RH non-condensing operating humidity
  • 24 VAC class II (input on control and zoning modules) R-C input
  • Intuitive and accessible programming interface and central program of zone set points and setback pr
  • Displays outdoor temperature on all AQ1000 series thermostats when used with an AQ12C10 outdoor sens
  • Customizable control settings and schedules provide greater control and comfort and control up to tw
  • Zoning control for up to four zones and can be up to 64 zones using expansion panels
  • Domestic hot water priority and priority override protection
  • Boiler short cycling protection
  • Boiler post purge and boiler shock prevention from cold water returning to boiler
  • Non-volatile EPROM memory retains program settings during power outage
  • AQ1000 series 2-wire communicating thermostats and most digital thermostats thermostat compatibility
  • 7 day, up to 2 setback periods/day setback program
  • Zone valves with end switches zoning devices controlled
  • 2 to 41 deg F differential boiler control temperature or auto (minimum 2 min on time)
  • OFF, 10 sec to 30 min (factory default is 30 sec) boiler heat post purge
  • Demand input: Heat demand (thermostat R-W) auxiliary demand and DHW demand external dry contacts con
  • B-B communication bus terminals: low voltage, Class II, 2-wire polarity-insensitive, digital communi
  • 120/250 VAC, 5 A, 1/3 hp pump zone output contact rating
  • 24 VAC, 0.5 A, 12 VA valve zone output contact rating
  • Supply/return sensor 10K NTC thermistor at 25 deg C +/- 0.5 deg F up to 500 ft (150 M), outdoor sens
5 to 90% RH non-condensing operating humidity
24 VAC class II (input on control and zoning modules) R-C input
Intuitive and accessible programming interface and central program of zone set points and setback programming
Displays outdoor temperature on all AQ1000 series thermostats when used with an AQ12C10 outdoor sensor
Customizable control settings and schedules provide greater control and comfort and control up to two stages of heat from a single thermostat
Zoning control for up to four zones and can be up to 64 zones using expansion panels
Domestic hot water priority and priority override protection
Boiler short cycling protection
Boiler post purge and boiler shock prevention from cold water returning to boiler
Non-volatile EPROM memory retains program settings during power outage
AQ1000 series 2-wire communicating thermostats and most digital thermostats thermostat compatibility
7 day, up to 2 setback periods/day setback program
Zone valves with end switches zoning devices controlled
2 to 41 deg F differential boiler control temperature or auto (minimum 2 min on time)
OFF, 10 sec to 30 min (factory default is 30 sec) boiler heat post purge
Demand input: Heat demand (thermostat R-W) auxiliary demand and DHW demand external dry contacts connection only
B-B communication bus terminals: low voltage, Class II, 2-wire polarity-insensitive, digital communicating link to other control or zoning modules
120/250 VAC, 5 A, 1/3 hp pump zone output contact rating
24 VAC, 0.5 A, 12 VA valve zone output contact rating
Supply/return sensor 10K NTC thermistor at 25 deg C +/- 0.5 deg F up to 500 ft (150 M), outdoor sensor 10K NTC thermistor at 25 deg +/- 0.5 deg F up to 500 ft (150 M)