The Boiler Control 261 is designed to stage two on/off boilers using Outdoor Temperature Reset. It can be used in applications ranging from a single zone of baseboard, multiple baseboard and fan coil zones, to dedicated setpoint heating in commercial buildings. This control regulates a single heating water temperature through Outdoor Temperature Reset and/or setpoint target control. It is capable of controlling (stage and rotate) up to 2 on/off boilers, or a single 2 stage boiler, as well as the system pump.
Features
- Exercising
- Test sequence to ensure proper component operation
- warm weather shut down, automatic boiler differential
- Outdoor temperature reset, setback input for energy savings
- 2 Stage boiler control
- Quick setup for easy installation and programming of control
- User comfort adjustment to increase or decrease building space temperature
- Advanced settings to fine-tune building requirements
- Powered boiler pump output
Technical
Tekmar 261 Applications Brochure
Tekmar 261 IOM
Tekmar 261 Submittal
Specifications
Control |
Microprocessor control. This is not a safety (limit) control |
Packaged weight |
3.5 lb. (1600 g) |
Dimensions |
6-5/8″ H x 7-9/16″ W x 2-13/16″ D (170 x 193 x 72 mm) |
Enclosure |
Blue PVC plastic, NEMA type 1 |
Approvals |
CSA C US, meets Class B: ICES & FCC Part 15 |
Ambient conditions |
Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% Non-condensing, Altitude <6560 ft. (2000 m), Installation Category II, Pollution Degree 2 |
Power supply |
115 V (ac) ±10%, 50/60 Hz, 1750 VA |
Relay |
240 V (ac) 10 A, 1/3 hp |
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Sensors |
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 |
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Warranty |
Limited 3 Year Warranty |
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