Taco PC700-2 Boiler Reset Control
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Taco Boiler Reset Control model PC700-2 is designed to improve performance in your hot water heating systems by regulating the supply water temperature of a single boiler based on the outdoor temperature. The control utilizes a heating curve to set the relationship between outdoor temperature and supply water temperature to provide optimum control and comfort.
Thanks to its integral microprocessor, the Taco PC700-2 is able to continuously adjust the boiler differential to avoid boiler short-cycling and large temperature swings, Standard functions include warm weather shut down, minimum boiler supply temperature setting, and a starting water temperature setting. A liquid crystal display clearly shows the boiler supply temperature and other monitored temperatures and settings for simple and effective control.
Also included in the package: Input (Boiler) Sensor and Output (Outdoor) Sensor.
Control: Microprocessor PI Control. This is not a safety ( limit ) control.
Dimensions: 4 3/4” H x 2 7/8” W x 7/8” D
Approvals: CSA NRTL/C; Meets ICES & FCC regulations for EMI/RFI
Ambient Cond.: Indoor use only
Power Supply: 24 VAC 3VA (Powered by -EXP Control)
Relays: 24 V (ac) 5 A, pilot duty 240 VA
Sensors: 1 Outdoor Air and 1 Supply Water
Boiler Start: 35 to 150°F ( 2 to 66°C )
Outdoor Start: 35 to 85°F ( 2 to 29°C )
Boiler Design: 70 to 220°F ( 21 to 104°C )
Outdoor Design: -60 to 32°F ( -51 to 0°C )
Boiler Minimum: Off, 80 to 180°F ( 27 to 82°C )
Differential: Auto, 2 to 42°F ( 1 to 24°C )
WWSD: Off, 35 to 100°F ( 2 to 38°C )
Units: °F, °C