Steam Control 279

Control Description The tekmar Steam Control 279 can operate a single on-off steam boiler or an on-off steam valve using outdoor reset. The control determines the on time of the boiler or valve based on the measured outdoor temperature and settings entered by the installer. A large LCD displays the current status and operating temperatures.

Literature	—	D 279, A 279, D 001, D 070
Control	—	Microprocessor PID control; This is not a safety (limit) control
Packaged Weight	—	3.3 lb. (1500 g)
Enclosure	—	Enclosure A, blue modified 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 3.5 VA
Relays	—	230 V (ac) 5 A 1/3 hp, pilot duty 240 VA
Sensors Included	—	NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 Outdoor Sensor 070 and Universal Sensor 071
Optional Devices	—	tekmar type #: 071, 076, 077, 078, 082, 084

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Literature

Control

Packaged Weight

Enclosure

Dimensions

Approvals

Ambient Conditions

Power Supply

Relays

Sensors Included

Optional Devices