Description
Tekmar 423 TEKNET - Universal Reset Module - Four tN4 - Two Boiler - DHW & Setpoint
Features:
- DHW priority (optional), setpoint operation
- Expandable up to 96 zones, two on/off or two modulating boiler control
- DHW post purge, DHW control
- Powered pump outputs, system setback (with optional timer)
- Controls up to 4 water temperatures (with use of up to 3 mix expansion modules), automatic boiler differential
- One touch overrides (with optional User Switch)
- Outdoor temperature reset, indoor temperature feedback
- Exercising, boiler protection
- Warm weather shut down, zone synchronization
Specifications:
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Agency Approvals CSA C US, CSA/UL 61010-1, meets Class B: ICES & FCC Part 15 Ambient Conditions Indoor use only, 32 to 122 degrees F (0 to 50 degrees C), RH 80 percent to 88 degrees F (31 degrees C), down to 50 percent from 104 to 122 degrees F (40 to 50 degrees C), Altitude less than 6560 feet (2000 m), Installation Category II, Pollution Boiler Relay 115 V (ac) 5 A Combined Load 10 A Maximum (for DHW and Primary Pump) Control Type Microprocessor PID control, this is not a safety (limit) control Demand 20-260 V (ac) / 0.1 VA at 24 V DHW - Valve Output 24 V (ac) 8 VA Maximum Dimensions 3-5/8" H x 5-3/8" W x 9/16" D (92 x 137 x 14 mm) Enclosure Material Does Not Apply To Product Enclosure NEMA Rating Does Not Apply To Product Hydronic - HVAC Control Type Universal Reset Module Modulating Output 0-10 V (dc) Minimum 2500 Power Supply Provided by interconnected tekmarNet Zone Manager Pump Relay 115 V (ac) 5 A, 1/6 hp Sensor NTC thermistor, 10 k at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta = 3892
Installation Manual
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