Quick Setup Guide

Product design, software and literature are Copyright © 2009 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
4 of 4
All specifications are subject to change without notice.
Printed in Canada. Q 402 - 06/09.
tekmar Control Systems Ltd., Canada, tekmar Control Systems, Inc., U.S.A.
Head Offi ce: 5100 Silver Star Road, Vernon, B.C. Canada V1B 3K4, 250-545-7749, Fax. [phone] Web Site: www.tekmarcontrols.com
Basic Settings
The House Control 402 is pre-programmed with default settings that will accommodate the majority of hydronic applications.
The following three basic settings are the most commonly adjusted, and should be checked to ensure they match what is
required for the specific building and mechanical setup. See the Installation and Operation Manual D402 for all settings.
Item Field Range Description
ADJUST
-60 to 45°F
(-51.0 to 7.0°C)
Default = 10°F
(-12.0°C)
OUTDOOR DESIGN
Typically set to the temperature of the coldest day of the year. The
design outdoor air temperature used in the heat loss calculations
for the heating system.
ADJUST
70 to 180°F
(21.0 to 82°C)
Default = 120°F
(49.0°C)
MIX DESIGN
The supply water temperature required for the Mix 1 zones on
the typical coldest day of the year.
ADJUST
VAR, FLOT, 0-10
Default = VAR
MIX TYPE
Select the type of mixing device. Can be variable speed injection
pump (VAR), floating action (FLOT) or 0-10 Vdc actuator.
Note: 0-10 is only available when Boiler Type = OnOf
To Adjust Settings
Press the Menu button to access the Adjust Menu
The first Item will be Outdoor Design. Use the Up and Down
buttons to set the appropriate value.
Press the Item button to advance to the next Item. This will
be Mix Design.
1.
2.
3.
ADJUST MENU
Mechanical Layout
This mechanical application drawing shows the basic components
of a simple hydronic application that is well suited to the House
Control 402.
Setting Notes: If your application is identical to the one pictured
below (using slab radiant heat), it is recommended to change
only the Outdoor Design (Coldest day of the year) which comes
default at 10°F (-12°C).
S1 Boiler Sensor
S2 Mix Sensor
S3 Outdoor Sensor
P1 Boil System Pump
P2 DHW Pump
P3 Injection Pump
P4 Mix System Pump
402
S1
S2
P1
P2
P3
P4
S3
After the last item, the control returns to the first item in the menu.