tekmar 400 House Control Installation - Manual (Page 11)

© 2013 400_D - 09/13 11 of 32
Applications
115 V (ac)
L N G
Boil Sys
DHW
(P1)
(P2)
to pump grounds
N L
Boil System Pump
DHW Pump
Pump Power L
Strip wires
1/2 inch (13 mm).
Installed wires are
not removable.
12-18 AWG
Expansion
tN4 Boil
C
tN4
1
R
C L
N
(red)
(black)
(black)
Menu
House Control 400
Item
+
Com
Boil
Out
DHW
Vlv C Vlv C Vlv C
Zone 3 Zone 1 Zone 2 Zone 4
Vlv C
Com
Zone 1 Zone 2 Zone 3 Zone 4
tN2 tN2 tN2 tN2 tN2 tN2 tN2 tN2
Sensors - No P
ow
er
Call
Call
tN4
C
Mod dc/mA
Boil Exp.
Se
tpoint
DHW
R C
Input Power
H8005B
Made in Canada
Use at least 167°F
(75°C) conductors
Stage 2
Stage 1
Description: The House Control 400 operates an On/Off boiler with indirect Domestic Hot Water. The boiler is operated
using Outdoor Reset with Indoor Feedback, which supplies the lowest comfortable water temperature to four onboard
hydronic zones. Additional boiler temperature zones can be added using the tN4 Expansion terminals.
Single Boiler, DHW Tank, 4 Boiler Zones A400-1
400
070
S2
S1
Outdoor
Sensor
(S2)
tekmarNet ® 2 Thermostats
Boiler T-T
24 V (ac)
Transformer 009
Boiler Sensor (S1)
DHW Call
Zone Valves (Z1 to Z4)
tekmarNet ® 4
Expansion to
Wiring Centers,
Timers, or
User Switch
tekmarNet ® 2 Thermostats
P1
P2
Z1 Z2 Z3 Z4