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HONEYWELL AQ2504B2 Aquatrol Boiler Control Panel for 4 Zone Pump
[AQ2504B2]
$224.11


HONEYWELL AQ2504B2 Aquatrol Boiler Control Panel for 4 Zone Pumps or Valves. The AQ2504B family of Aquatrol Boiler Controls provides simplified, energy-efficient control of single-temperature, residential hydronic heating systems. It works with the AQ1000T communicating thermostats to convert a single zone heating system into a room-by-room comfort control system, or upgrades a basic relay-logic zoning system to intelligent "zone of greatest demand" control for increased energy efficiency and reduced boiler cycling.

Features:

Factory configured for control of up to four zones plus domestic hot water.

Expandable up to 16 zones with expansion zoning modules (sold separately).

Single stage boiler control synchronized to zone-of-greatest-demand.

Reduced boiler short-cycling.

Integral Domestic Hot Water control.

Installer selectable DHW Priority.

Installer selectable DHW Priority Override.

Replacement Parts: AQ1554P2 4-zone pump expansion module. AQ10X38 24 Vac 38 VA transformer, AQ12C10 outdoor sensor, AQ12C11 supply/return sensor.

Product Specifications:

Application: Boiler control for hydronic zoning system

Thermostat Compatibility: AQ1000T Series 2-wire Communication Thermostats

User Interface (Setting, Programming): DIP Switches

Number of Communicating Zones Controlled: 4

Boiler Differential: 2F to 41F (1C to 23C), or Auto (minimum 2 minutes on time)

Boiler Heat Post Purge: Off, 10 seconds to 30 minutes (factory default is 30 seconds)

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 (input on Control and Zoning Modules)

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, beta=3892.

Heat Demand (Thermostat R-W) Input: External dry contacts connection only

DHW Demand Input: External dry contacts connection only

Boiler (T-T) Output Rating: 24Vac, 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 (C1-C2) Output Rating: 120 Vac/250 Vac 5A, 1/3HP

DHW Pump/Valve Output Rating: 120 Vac/250 Vac 5A, 1/3HP

Auxiliary 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

Control and Zoning Panel Temperature Rating (F): 32 F to 130 F

Control and Zoning Panel Temperature Rating (C): 0 C to 55 C

Operating Humidity Range (% RH): 5 to 90% RH, non-condensing

Sensor Temperature Rating (F): -58 F to +230 F

Sensor Temperature Rating (C): -50 C to +110 C

Dimensions (in.): 13 in wide x 8 in. high x 3 3/8 in deep

Dimensions (mm): 33 cm wide x 20.3 cm high x 8.5 cm deep

Weight (kg): 2.3 kg

Weight (lb): 4.9 lbs

Tradeline Value: Tradeline

Type of Zoning Devices Controlled: Pump or 2-wire valve (line voltage)

Electrical Connections (Line Voltage): Wire-clamp screw terminals, Maximum 2 x 14 AWG each on line voltage terminals

Outdoor 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, beta=3892.

Replacement Parts: AQ1500B0 boiler control module

Replacement Parts: AQ1554P2 4-zone pump expansion module

Replacement Parts: AQ10X38 24 Vac 38 VA transformer

Replacement Parts: AQ12C10 outdoor sensor

Replacement Parts: AQ12C11 supply/return sensor

Approvals, Canadian Standards Association: Certified

Approvals, Underwriters Laboratories Inc: File No. LR76030

This product was added to our catalog on Wednesday 25 July, 2007.

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