AQ25042B/U

Specifications

Application

Boiler control for zoned hydronic systems

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 (lb)

4.9 lbs

Weight (kg)

2.3 kg

Approvals, Canadian Standards Association

CSA C/US Certified to CSA and UL Standards, File No. LR76030

Tradeline Value

Tradeline

Thermostat Compatibility

AQ1000 Series 2-wire communicating thermostats and most digital thermostats

User Interface

DIP Switches

Number of Zones

4

Zoning Devices Controlled

Zone pumps or 2-wire valves (line voltage)

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

R-C Output (on transformer)

38 VA, 24 Vac Class II

R-C Input (on Control and Zoning Modules)

24 Vac Class II

Demand Input

Heat Demand (Thermostat R-W) 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.

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

Output Ratings

Boiler (T-T)-- 24 Vac, 0.5A, 12VA; Boiler Pump-- 120 Vac/250 Vac 5A, 1/3HP; DHW Pump/Valve-- 120 Vac/250 Vac 5A, 1/3HP; Auxiliary Pump-- Dry contact output, 120 Vac/250 Vac 5A, 1/3 HP

Zone Output Contact Rating

Pumps: 120 Vac/250 Vac, 5A, 1/3 HP,Valves: 24 Vac, 0.5 A, 12 VA

Electrical Connections

Wire-clamp screw terminals, Maximum 2 x 14 AWG each on line voltage terminals

Operating Humidity Range (% RH)

5 to 90% RH, non-condensing

Sensor

Supply/Return Sensor--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, Lead Length: 10 ft. (3050 mm); Outdoor Sensor--10 kilohm NTC thermistor at 25 C (77 F) ± 0.5F (±0.3C) up to 500 ft (150 M) using

Replacement Parts

AQ10X38 24 Vac 38 VA transformer,AQ15540B 4-zone pump expansion module,AQ12C11 supply/return/mixed loop sensor,AQ15000B boiler control module

Temperature Ratings (C)

Panel--0 C to 55 C; Sensor-- -50 C to +110 C

Temperature Ratings (F)

Panel--32 F to 130 F; Sensor-- -58 F to +230 F

Supply Voltage

120V 60 Hz

Documents