Tekmar 275 Control – One tN4 – Four Modulating Boiler & Domestic Hot Water / Setpoint

Description

Tekmar 275 Control – One tN4 – Four Modulating Boiler & Domestic Hot Water / Setpoint

Features:

• Outdoor temperature reset, programmable schedules
• Boiler pump(s) operation (optional), test sequence to ensure proper component operation
• Equal run time rotation, exercising
• Powered system pump output, alerts
• Access levels
• tekmarNet^® 4 compatible, condensing and non-condensing boiler groups
• DHW pump operation, DHW priority (optional)
• Control up to 4 modulating or on/off boilers, primary pump sequencing
• warm weather shut down, automatic boiler differential

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
• Modulating Output – 0 – 10 V (dc), Minimum 2500 ohms
• 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