Honeywell AQ25144B/U 1107530

Honeywell Aquatrol Boiler Reset Control, 120 VAC at 60 Hz Power Supply, NTC Thermistor Sensor, User Interface: LCD Display and 7 Button Key Pad, 4 -Zone, 120 - 225 deg F Maximum, 59 - 180 deg F Minimum Supply and 2 - 41 deg F Differential (Boiler) and -60 to 32 deg F (Outdoor Low Design) Control, 24 VAC, 0.5 A, 12 V-A Boiler Output, 120 - 250 VAC, 5 A, 1/3 hp Pump, 24 VAC, 0.5 A, 12 V-A Valves Contact, 10 ft L Lead, 2 x 14 AWG Wire, Wire Clamp Screw Terminal Connection, 5 - 90% RH Non-Condensing Humidity, 7 days, Up to 2 Setback Periods/day Program Programmability, 32 - 130 deg F Panel, -58 to 230 deg F Sensor, 16-1/2 in W x 8 in H x 3-3/8 in D

• For hydronic zoning system and (4) zones of 4-wire valves
• 0 - 10 VDC modulating output for driving a modulating/condensing boiler
• Customizable control settings allow for greater control and comfort
• Intuitive and accessible programming interface and central program of zone set points and setback
• Domestic hot water priority and priority override protection, as well as an automated test and purge feature
• Test and purge feature for quick start-up and simplified troubleshooting
• Boiler short cycling protection, boiler post purge and boiler shock prevent from cold water returning to boiler
• 10 sec to 30 min off boiler heat post-purge
• 30 sec per 2 weeks of space heating inactivity pump/valve exercise
• Heat demand (thermostat R-W), auxiliary demand and DHW demand, external dry contacts connection only
• Low voltage, Class II, two-wire polarity-insensitive, digital communicating link to other control or zoning modules
• Auxiliary low voltage - 24 VAC, 0.5 A, 12 V-A, boiler pump - 120/250 VAC, 5 A, 1/3 hp, DHW pump/valve - 120 VAC, 5 A, 1/3 hp, auxiliary pump - dry contact output, 120/250 VAC, 5 A, 1/3 hp
• Warm weather shut down temperature - 35 - 100 deg F