tekmar 400 House Control Installation - Manual

tekmarNet ® 2 House Control 400
D 400
09/13
HVAC Systems Replaces: 09/10
Installation & Operation Manual
© 2013 400_D - 09/13 1 of 32
Menu
House Control 400
Item
VIEW
Boil Exp Boil System
Zones
1 2 3 4
Calls Pumps
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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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.
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 •
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Introduction