Quick Setup Guide

Q402
06/09
House Control 402
1 of 4 © 2009 Q 402 - 06/09
- Quick Setup Guide
Control Location
The House Control 402 must be mounted to a 4” x 4”
electrical box.
Pump wires will be connected inside the electrical box.
All tN2 Thermostat and other low-voltage wiring will
enter through the knockout panels on the back of the
House Control.
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Basic Installation
This Quick Setup Guide contains the basic information required to get your new tekmarNet
®
House Control 402 installed
and operational. An Installation and Operation Manual D402 containing all available features and operational details is
included with this control or can be found at www.tekmarcontrols.com/literature.html
The House Control 402 operates a complete hydronic heating system using outdoor reset with indoor feedback. Central
control for two system pumps, indirect DHW tank, setpoint and a mixed water temperature supplying four on-board zone
valve outputs are included.
Wiring
All pumps must be wired through the back of the control
prior to mounting the enclosure. Use the push-in connectors
provided.
Bring all pump wires into the electrical box and fasten with
appropriate wire clamps. Ensure each pump is grounded
with the power source ground in the electrical box, as
shown in Figure 1.
1.
Mount the Control
Mount the House Control onto the electrical box, ensuring
all pump wiring is neatly tucked inside the box. See Figure
5 on the next page.
Secure the House Control to the electrical box with
screws through the provided holes in the back of the
enclosure.
1.
2.
Connect the Neutral (N) wires from each pump and wire
to the 115 V (ac) Neutral (N) wire. If the transformer has
been mounted to this electrical box, connect its neutral
wire with this group. This is shown in Figure 2.
Connect the 115 V (ac) Line Voltage (L) wire to the red
Pump Power (L) wire on the House Control. This is shown
in Figure 3.
Wire the remaining pump wires from each pair into the
push-in wire connectors attached to the pump leads on the
back of the House Control. This is shown in Figure 4.
2.
3.
4.
DHW Pump
Mix System
Pump
Power
Source
(L,N)
V. S. Pump
Boil Sys Pump
Boil System Pump
Mix System Pump
DHW Pump
Var iabl e
Speed Pump
Pump Power L
402
Strip wires
1/2 inch (13 mm).
Installed wires are
not removable.
12-18 AWG
Pump
Leads
Variable Speed Pump
DHW Pump
Boil System Pump
Mix System
Pump
Power Source
(L,N)
Pump
Pump
Pump
Pump
Variable Speed Pump
DHW Pump
Boil System Pump
Mix System
Pump
Power Source
(L,N)
Pump
Pump
Pump
Pump
Figure 1 - Connect
Ground Wires
Boil System Pump
Mix System Pump
DHW Pump
Var iabl e
Speed Pump
Pump Power L
402
Strip wires
1/2 inch (13 mm).
Installed wires are
not remov
able.
12-
18
AWG
V. S. Pump
DHW Pump
Boil Sys Pump
Mix System
Pump
Power
Source
(L,N)
Figure 2 - Connect
Neutral Wires
Figure 3 - Connect Line Voltage (Hot)
Figure 4 - Connect Pump Line (Hot)