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tN2 House Control 406 - Heat Pump & Backup, Four Zone Valves
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The tekmarNet^®2 House Control 406 is designed to operate the equipment in a 2-pipe, single tank, hydronic heating and cooling system. It operates two heat pump stages (water-to-water or air-to-water) with a backup heat source (boiler or electric resistance). The heat pump provides either hot or chilled water to a storage tank loop and optional mixed temperature loop. For radiant heating, the water temperature is calculated using Outdoor Temperature Reset. For radiant cooling, the chilled water temperature is maintained at an adjustable setpoint, or is adjusted using dew-point reset with a humidity sensor. A backup boiler can provide an Outdoor Temperature Reset water temperature as well as domestic hot water and setpoint water temperatures. The 406 operates 4 on-board heating and cooling zones and is expandable up to 52 zones on the boiler, tank, and mix water temperatures.

How do I purchase this product?

Contact your Local Representative for details.

Features & Specs

Features (definitions)

Automatic differential for heat pump and boiler
Controls 2-stage heat pump
Controls on/off or modulating boiler
DHW Post Purge
DHW control with priority
Electric resistance backup (optional)
Exercising
Expandable up to 52 zones
Floor cooling capable
Four 24 V (ac) powered zone valve outputs
Indoor Temperature Feedback
Intelligent heat/cool switchover
One touch overrides (with optional User Switch)
Outdoor Temperature Reset
Setpoint operation
System setback (with optional timer)
Variable speed mixing control
Warm Weather Shut Down
Zone Synchronization

Specifications

Control	Microprocessor control. This is not a safety (limit) control
Packaged weight	1.4 lb. (640 g)
Dimensions	5.5" H x 5.5" W x 2.25" D (140 x 140 x 57 mm)
Enclosure	NEMA 1 rated, blue PC+ABS plastic
Approvals	CSA C US, meets class B: ICES & FCC Part 15
Ambient conditions	Indoor use only, 32 to 104°F (0 to 40°C), RH 90% Noncondensing
Power supply	24 V (ac) ±10% 60 Hz, 100 VA max, Class 2
Control Load	2 VA
Zone, Y1 and O/B Relays	24 V (ac) 3.7 A combined
Y2, Backup Relays	24 V (ac) 5 A
Pump Power	115 V (ac) 12 A
Pump Relays	115 V (ac) 5 A 1/6 hp
Variable Power	115 V (ac) 2.4 A
Sensors	NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
-Included	Outdoor Sensor 070 and 4 of Universal Sensors 082
-Optional	tekmar type#: 033, 479
Warranty	Limited 3 Year Warranty

Technical

In most cases the current version of literature will work, otherwise use the piece of literature most closely matching the date code of your product.

Current Literature

Product Submittal	Nov 2011 - Present	406_C
Installation & Operation Manual	Nov 2012 - Present (Dec. 2012 and newer models)	406_D
Quick Setup Guide	Dec 2011 - Present	406_Q
User Manual	Dec 2011 - Present	406_U