Tekmar 274 Control - One tN4 - Four Stage Boiler & Domestic Hot Water / Setpoint


Price:
Sale price$969.99

Description

Tekmar 274 Control - One tN4 - Four Stage Boiler & Domestic Hot Water / Setpoint

Tekmar 274 Control - One tN4 - Four Stage Boiler & Domestic Hot Water / Setpoint

    Features:

    • Equal run time rotation, automatic boiler differential
    • DHW pump operation, DHW priority (optional)
    • Test sequence to ensure proper component operation
    • Exercising, powered system pump output
    • Optional boiler pump(s) operation, quick setup for easy installation and programming of control
    • Outdoor temperature reset, warm weather shut down
    • Advanced settings to fine-tune building requirements
    • Control up to 4 on-off boilers, primary pump sequencing (optional)
    • User comfort adjustment to increase or decrease building space temperature

    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
    • 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 - 115 V (ac) plus / minus 10 percent, 60 Hz, 7 VA, 1150 VA max
    • Relay - 230 V (ac) 5 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

    Installation Manual


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