Taco Boiler Reset Control 2-Stage Zoom

Taco Boiler Reset Control 2-Stage


Brand: Taco

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Application: Boiler Reset
Power Supply: 24 VAC 3VA (Powered by EXP Control)
Sensor Type: 1 Outdoor Air and 1 Supply Water
Boiler Start: 35 to 150°F
Outdoor Start: 35 to 85°F
Boiler Design Temp: 70 to 220°F
Outdoor Design Temp: -60 to 32°F
Boiler Min. Control Temp: Off
80 to 180°F
2° to 42°F
Warm Weather Shutoff Temp: Off
35 F to 100 F
DHW Demand Input: 20 to 260 V (ac) 2 VA
Interstage Delay: 0:30 to 4:00 minutes
Application: Boiler Reset
Width: 2-7/8"
Height: 4-3/4"
Power Method: 24V
Depth (Inches): 7/8"
Ambient Conditions: Indoor use Only: 32°-105°F < 90% RH non-condensing
Relays: 120 V (ac) 5 A 1/6 hp pilot duty 240 VA

Description for Taco PC702-1

Taco's PC702 Two-Stage Reset Control is a microprocessor-based control designed to regulate the supply water temperature from a two-stage boiler system based on the outdoor temperature or domestic hot water requirements.
The PC702 offers all the feature of the PC700 and in addition includes an adjustable interstage relay setting, boiler staging using proportional, integral and derivative (PID) logic, optional boiler rotation and a domestic hot water demand output.

Taco Boiler Reset Control 2-Stage

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  • Taco Boiler Reset Control 2-Stage


    I have two-Five ton Geothermal Heat pumps piped in parallel via a common manifold, heating Radiant floors. Do you think the PC702 2-Stage Boiler Reset Control Connected to EXP Switching Relay could help regulate water temperatures from 2 GEO systems? Max water temp is around 125F. I only need to run both units about 10% of the time.
    Asked on 2/5/2011 by Ted from Bedford, PA

    1 answer



      We don't see why not. You can program it to stage the boilers to fire as you want them to.

      Answered on 2/15/2011 by PexSupply Staff from NY
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