tekmar Boiler Control 263

Boiler Control 263

Control Description The tekmar Boiler Control 263 can control the supply water temperature from a single modulating boiler or up to 2 on / off stages based on outdoor temperature, domestic hot water requirements, or setpoint requirements. A large easy to read display provides current system temperatures and operating status. The control has an internal setback timer, which can have 2 events per day on a 24 hour, 5-1-1 day or 7 day schedule.

Literature	—	D 263, A 263, D 001, D 070
Control	—	Microprocessor PID control; This is not a safety (limit) control
Packaged Weight	—	3.3 lb. (1500 g), Enclosure A, blue PVC plastic
Dimensions	—	6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm)
Approvals	—	CSA C US, meets ICES & FCC regulations for EMI/RFI
Ambient Conditions	—	Indoor use only, 32 to 122°F (0 to 50°C), < 90% RH non-condensing
Power Supply	—	115 V (ac) ±10% 50/60 Hz 600 VA
Relay Capacity	—	230 V (ac) 5 A, 1/3 hp, pilot duty 240 VA
Modulation Output	—	0-20 mA / 4-20 mA (up to 1000 Ω load)
Demands	—	20 to 260 V (ac) 2 VA
Sensors Included	—	NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 Outdoor Sensor 070 and Universal Sensor 071, 500 Ω Resistor
Optional Devices	—	tekmar type #: 071, 076, 077, 078

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Literature

Control

Packaged Weight

Dimensions

Approvals

Ambient Conditions

Power Supply

Relay Capacity

Modulation Output

Demands

Sensors Included

Optional Devices