Tekmar 279 Control – Steam – One Stage

Description

Tekmar 279 Control – Steam – One Stage

Features:

• Large LCD display
• 24 hour, 5-1-1, 7 day schedule
• Indoor temperature feedback (with optional indoor sensor), manual override
• CSA approved for use in USA and Canada
• Two alert level relays
• Outdoor temperature reset, warm weather shut down
• Two or four schedule events per day
• Built-in programmable timer
• DHW tankless coil operation

Specifications:

• Agency Approvals – CSA C US, meets class B: ICES & FCC Part 15
• Ambient Conditions – Indoor use only, 32 to 122 degrees F (0 to 50 degrees C), RH less than or equal to 90 percent Non-condensing, Altitude less than 6560 ft. (2000 m), Installation Category II, Pollution Degree 2
• Control Type – Microprocessor control, this is not a safety (limit) control
• 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 – Steam Control
• Power Supply – 115 V (ac) plus / minus 10 percent, 50/60 Hz, 3.5 VA
• Relay – 230 V (ac) 5 A, 1/3 hp, pilot duty 240 VA
• Sensor – NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892

Installation Manual