Taco I075C3R-1 Outdoor Reset I-Series Mixing Valve w/ Sensor, 3/4" Sweat, 3 Way

Taco iSeries mixing valves can be used instead of a conventional injection system. An integrated outdoor reset control built into the Taco i075C3R mixing valve eliminates the need for purchase and installation of a separate reset control and control valve.

The Taco iSeries mixing valves can also be set to perform a zone-by-zone outdoor reset, thus providing optimal control and comfort for every zone.

The direct drive actuator modulates the valve which injects different rates of hot water, supplying virtually any desired water temperature to the heating system. The maximum and minimum system supply temperatures can be adjusted for any job types, including staple-up radiant heated floors that require a higher starting temperature.

The Taco i075C3R valve includes an adjustable boiler protection function, which prevents low water temperatures from returning to the boiler, and thus protecting it. A multi-status LED indicator, plug-in wiring connections and a removable actuator, the installation is fast and easy.

Features:

2-way Injection, 3-way or 4-way Mixing;

Operates Off Constant Power or Relay End Switch;

Ball Valve Design, High Cv;

Manual Operation Button;

Solid State Microprocessor Design;

Compact Design;

Easy, One-handed Actuator Removal;

125 PSI Shutoff Pressure;

Plug-in Low Voltage Connections;

Multi-Status LED Indicator Light;

Fail Safe Mode;

Sensors Included;

Outdoor Reset Features:

Selectable Maximum Supply Temperature (110°F, 130°F, 150°F, or Off);
Selectable Minimum Supply Temperature ( 85°F, when max. supply temp. is set to 150°F or Off);
Adjustable Minimum Boiler Return Temperature (120°F, 135°F, or Off);
Warm Weather Shutdown (70°F or Off);
Adjustable Heating Curve (0.2-2.2 Reset Ratio);

Technical Specifications:

Maximum Operating Pressure: 300 psi;
Fluid Temperature Range: 20°F to 240°F @ 135°F ambient;
Ambient Conditions: Indoor Use Only, -22°F to 185°F, < 90% Non-Condensing;
Service: Closed Systems, Hot and Chilled Water, up to 50% Glycol;
Seat Leakage: Drop-Tight Close Off;
Power Supply: 24 VAC ±10% 50/60 HZ;
Electrical Rating: 24 VAC, 60 HZ, 0.4 Amps;
Do not exceed number of valves per transformer rating (Ex.: Do not use more than 4 valves per 40VA transformer);
Sensors: NTC Thermistor, 10 k Ω @ 77°F β=3892;

Cv: 4.5;

Weight: 1.32 lbs;

Connections: 3/4" sweat;