Tekmar 284 Control – Four tN4 – BAS – Four Stage Boiler & Domestic Hot Water / Setpoint

Description

Tekmar 284 Control – Four tN4 – BAS – Four Stage Boiler & Domestic Hot Water / Setpoint

Features:

• Outdoor temperature reset, programmable schedules
• Boiler Isolation Valves
• Setpoint operation
• Energy, flow and pressure monitoring
• tekmarNet^® 4 compatible, control up to four boilers
• BACnet^® or Modbus ^® communication, primary pump sequencing
• Combustion air damper control
• Condensing and non-condensing boiler groups, modulating, single stage or two stage
• DHW priority

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), less than 90 percent RH Non-condensing
• Control Type – Microprocessor control, this is not a safety (limit) control
• Dimensions – 8-1/16″ H x 11-1/8″ W x 2-15/16″ D (204 x 282 x 74 mm)
• Enclosure Material – Blue PC+ABS plastic with metal top & bottom conduit connection walls
• Enclosure NEMA Rating – NEMA 1
• Hydronic – HVAC Control Type – Boiler Control
• Modulating Output – 4 x 0-10 V (dc) 500 ohms minimum load impedance / 4-20 mA 1 k ohms max load impedance
• Power Supply – 115 V (ac) plus / minus 10 percent, 60 Hz, 18 VA
• Pump Relay – 230 V (ac) 5 A, 1/3 hp
• Relay – Boiler pump,Valve, IDHW pump 230 V (ac) 5 A, 1/3 hp, primary pump 230 V (ac) 10 A, 1/2 hp, Alert relay 230 V (ac) 5 A, 1/6 hp
• Sensor – NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892

Installation Manual