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
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