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261 | Boiler Control - Two Stage Boiler & Setpoint | Tekmar

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Overview

Details for 261

Boiler Control - Two Stage Boiler & Setpoint

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

Specifications

Item Number	261
Brand	Tekmar
Category	Boiler / DHW Controls
Agency Approvals	CSA C US, meets class B: ICES & FCC Part 15
Ambient Conditions	Indoor use only, 32 to 113 degrees F (0 to 45 degrees C), RH less than or equal to 90 percent Non-condensing
Control Type	Microprocessor control, this is not a safety (limit) control
Demand	20 to 260 V (ac) 2 VA
Dimensions	6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm)
Enclosure Material	Blue PVC plastic
Enclosure NEMA Rating	NEMA 1
Hydronic - HVAC Control Type	Boiler Control
Power Supply	120 V (ac) plus / minus 10 percent, 50/60 Hz, 1300 VA
Relay	240 V (ac) 10 A, 1/3 hp
Sensor	NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892