Boiler
Control 261 - Two Stage Boiler & Setpoint
Control Description The Boiler Control 261 is a microprocessor-based two stage boiler control designed to regulate the supply water temperature from a single two stage boiler or two single stage boilers based on either outdoor air temperature or a setpoint demand. The 261 can stage and rotate two single fire boilers or it can stage a single Lo/Hi fire boiler. The 261 also operates the system pump.
Literature |
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Control |
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Microprocessor PID control; This is not a safety (limit) control |
Packaged Weight |
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3.0 lb. (1340 g), Enclosure A, blue PVC plastic |
Dimensions |
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6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm) |
Approvals |
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CSA C US, meets ICES & FCC regulations for EMI/RFI |
Ambient Conditions |
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Indoor use only, 32 to 113°F (0 to 45°C), < 90% RH non-condensing |
Power Supply |
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120 V ±10% 50/60 Hz 1300 VA |
Relays |
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240 V (ac) 10 A 1/3 hp, pilot duty 240 VA |
Demands |
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20 to 260 V (ac) 2 VA |
Sensors Included |
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NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 |
Optional Devices |
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tekmar type #: 031, 032 |
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