Tekmar tN2 house control 400 Installation And Operation Manual

tekmarNet ® 2 House Control 400
Introduction
The tN2 House Control 400 is designed to operate all
of the mechanical equipment in a residential hydronic
heating system, coordinating their operation with network
communication. It can be used in applications ranging
from a single zone of baseboard with an on/off boiler, to
multiple radiant floor zones with a modulating/condensing
boiler. This control regulates one space heating water
temperature through Outdoor Temperature Reset and
Indoor Temperature Feedback. It is capable of controlling
a single on/off, two stage, or modulating boiler, Domestic
Hot Water, setpoint loads, 4 on-board zone valves, and
can expand up to 24 zones in total.
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Calls
Boil Exp Boil System
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Installation & Operation Manual
Pumps
Zones
1 2 3 4
Item
House Control 400
Features
• Automatic Boiler Differential
• Boiler Protection
• DHW Post Purge
• DHW Priority (optional)
• DHW control
• Exercising
• For use with tekmarNet®2 thermostats ONLY
• Four 24 V (ac) powered zone outputs
• Indoor Temperature Feedback
• One touch overrides (with optional User Switch)
• Only requires 2 Wires Per Zone
• Outdoor Temperature Reset
• Powered pump outputs
• Setpoint operation
• Single on/off, two stage, or modulating boiler
control
• System Setback (with optional Timer)
• Warm Weather Shut Down
• Zone Synchronization
• tN4 expansion terminals
Benefi ts
• Energy efficiency through Outdoor Temperature
Reset with Indoor Feedback
• Indoor Feedback minimizes the water temperature
(increasing energy savings), and the efficiency of
your mechanical equipment through integrated
tekmarNet ® Thermostats
• Zone Synchronization reduces equipment cycling
• Auto Differential - Reduces boiler cycling
• Compact enclosure for flexible installation
• Simple zone expansion using Wiring Centers
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D 400
09/13
HVAC Systems Replaces: 09/10
© 2013 400_D - 09/13