Honeywell Aq25042b Aquatrol Boiler Control Panel With Dhw Priority For 4 Zones

Introducing Honeywell Aq25042b Aquatrol Boiler Control Panel With Dhw Precedence For 4 Zones

Lowest Price : $198.80
Amount Saved : $-198.8

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Honeywell Aq25042b Aquatrol Boiler Control Panel With Dhw Precedence For 4 Zones Deals



Zone synchronization through Zone or Greatest Demand control.
? Domestic hot water precedence and precedence override protection.
? Boiler small cycling protection.
? Boiler post purge.
? Freeze protection.
? Pump/valve exercise.
? Boiler shock prevention from cold water returning to boiler.
? Automated test feature for quick start-up and simplified troubleshooting.
? Integral 38 VA transformer with self-resetting electronic fuse.

Honeywell AQ 250 42B 4 Zone Relays Residential Boiler Control AQ 25042B.

Application Boiler control for zoned hydronic systems.
Thermostat Compatibility AQ1000 Series 2-wire communicating thermostats and most digital thermostats.
User Interface (Setting, Programming) DIP Switches.
Number of Zones Controlled 4.
Boiler Heat Post Purge 30 seconds (sent to DHW tank or Zone of Greatest Demand - selectable).
Pump/Valve exercise 30 seconds per 2 weeks of space heating inactivity.
Power Supply 120V/60Hz.
R-C Output (on transformer) 38 VA, 24 Vac Class II.
R-C Input (on Control and Zoning Modules) 24 Vac Class II.
Supply/Return Sensor Lead Length: 10 ft. (3050 mm). 10 kilohm NTC thermistor at 25 C (77 F) ±0.5F (±0.3C) up to 500 ft (150 M) using 18 AWG or larger wire
Heat Demand (Thermostat R-W) Input External dry contacts connection only
DHW Demand Input External dry contacts connection only
Boiler (T-T) Output Rating 24 Vac, 0.5A, 12VA
B-B Communication Bus Terminals Low voltage, Class II, 2-wire polarity-insensitive, digital communicating link to other Control or Zoning modules.
Zone Module Thermostat input Low voltage, Class II, 2-wire polarity-insensitive, digital communicating with power link to AQ1000 series thermostat.
ZR-ZC Contact Rating 120 to 240 Vac, 1/3 HP
Boiler Pump Output Rating 120 Vac/250 Vac 5A, 1/3HP
DHW Pump/Valve Output Rating 120 Vac/250 Vac 5A, 1/3HP
Aux Pump Output Rating Dry contact output, 120 Vac/250 Vac 5A, 1/3 HP
Zone Output Contact Rating: 120 Vac/250 Vac, 5A, 1/3 HP

Buy Honeywell Aq25042b Aquatrol Boiler Control Panel With Dhw Precedence For 4 Zones

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Features

1. Zoning Control for up to 4 zones as shipped. can be expanded to a total of 16 zones
2. Employ with AQ1000 2-wire communicating thermostats, or most dry contact digital thermostats.
3. Controls up to 2 stages of heat from a single thermostat.

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