Physical Dimensions; Installation Location; Rough-In Wiring - Tekmar 403 Installation & Operation Manual

Tekmarnet 2
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Materials Required ---- ------ ----- ---- -- - -- - -- - - -- - -- ---- --- -- --- ---------------- --- -- ---- --- ---- --- --
----------- --------- -- -- - - - - - - - - - -- -- -- -- --- -- -- -- -- -- --- -- -- -- -- -- --- -- -- -- -- --- --
(2) #10 x 1" Wood Screws
(5) Wire Nuts
18 AWG LVT Solid Wire (Low Voltage Connections)
14 AWG Solid Wire (Line Voltage Connections)
Power Required - --- ------ -- ------ --- -- -- - --- -- - --- --- -- -------------- ----- --- -- ------- -- ---- --- ----- -
---- ------ --------- ------- - - - - - - - -- -- - -- --- -- -- -- -- --- -- -- -- -- -- --- -- -- -- ---- -- -- --- --
115 V (ac), 1-phase, 15 A service from circuit breaker
panel (potentially up to two circuits)

Physical Dimensions

Front View
Made in Canada
tN2 tN2 tN2 tN2 tN2 tN2 tN2 tN2
Zone 1
Zone 2
5–1/2"
(140 mm)
Menu
Item
House Control 403
7/8"
(22 mm)
CL
1–1/8" (30 mm)
(140 mm)

Installation Location

When choosing the location for the control, consider the
following:
Keep dry. Avoid potential leakage onto the control.
RH 90% to 104°F (40°C).
Non-condensing environment.
Do not expose to operating temperatures beyond 32-
104°F (0-40°C)
Provide adequate ventilation.
Keep away from equipment, appliances or other
sources of electrical interference.
Locate the control near pumps and/or zone valves if
possible.

Rough-In Wiring

Line Voltage Wiring-- -- -- ------ ---- --- --- - -- - - -- - -- - --- ---------------- --- -- --- ------------- --- -- --- --
-- -- --------- --------- -- - - - - - - - - - -- -- -- -- --- -- -- -- -- -- --- -- -- -- -- -- --- -- -- -- -- --- --
The control operates a number of pumps through wiring
on the back of the control. The control must be mounted
to a 4" x 4" electrical junction box so that these electrical
connections are safely contained.
For ease of service, the circuit breaker or power disconnect
should be located in reasonably close proximity to the
equipment.
All line voltage wire connections are recommended to
be pulled inside a flexible or solid conduit. Always follow
proper wiring practices, building and electrical codes for
your jurisdiction.
Side View
1/2" Knock-out (x 4)
C
Opn
Cls
Zone 3
Zone 4
Floating Action
Input Power
Use at least 167°F
(75°C) conductors
C
R
2–1/4"
(57 mm)
5–1/2"
tekmar 009K (24 V (ac) transformer with 4" x 4" junction box)
4" x 4" Extension Ring for Electrical Junction Box
Cable or Conduit Connectors
Power disconnect (optional)
Control designed to mount on 4" x 4"
electrical box (not included). For systems
that require 2 power sources of 115 V
(ac), a box extension ring is required to
increase box fill capacity.
1/2" x 5/8"
(12 mm x 16 mm)
4–1/2" (114 mm)
Knock-out (x 4)
Provide easy access for wiring, viewing and adjusting
the control.
Mount approximately 5 ft. (1.5 m) off the finished floor.
Install the electrical junction box to a wall using #10
x 1" wood screws. Wall anchors are recommended
when mounting to sheet rock wallboard or masonry.
Install the extension ring onto the electrical junction
box. Total box volume must be 38 cubic inches (623
3
cm
) or greater to comply with National Electrical Code
(NEC) or Canadian Electrical Code (CEC).
Each cable must be pulled from the equipment to the
electrical junction box. It is recommended to label each
cable for easy identification. All line voltage wires should
be stripped to a length of 1/2" (13 mm).
Pull a three conductor 14 AWG cable for the following
equipment:
Circuit Breaker or Power Disconnect
Mix System Pump
Boiler System Pump
DHW Tank Pump (if applicable)
Variable Speed Injection Pump (if applicable)
Four Zone Pumps
3 of 32
Back View
Ø 1/8"
7/8" x 1/2" (23 mm x 12 mm)
(3 mm)
Knock-out (x 4)
© 2011
D 403 - 07/11

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