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Fig. 3
3.0 Installation
3.1
Controllers
1. The HR200WK unit can be installed in
conjunction with a number of controllers.
150VA
(563538): The 150VA transformer,
when used with a trickle/boost switch (455213),
allows for a trickle and boost speed to be
selected. Only terminals providing 140V or
higher should be used as the unit will not
operate reliably bellow 140V.
Ecotronic 1.5A controller (W300310):
Provides variable speed control and on off and
auto (sensor) modes.
Normal Boost Purge Switch (5108454):
The single gang switch enables the unit to be
manually switched from permanent trickle
ventilation Normal (Low speed) to either Boost
(Medium speed) or Purge (High speed).
3.2
Initial Preparation
1. Select an approved electrical control
arrangement for the HR200WK unit
(above).
2. After considering the site requirements
(Section 2.0), select a suitable site for the unit
and controllers and work out the cable runs.
WARNING: Before deciding on the final position
for the unit, check there are no buried cables,
pipes or obstructions on the outside wall.
Cable requirements: Suitably (Basec or Har)
approved four core cable of appropriate current
carrying capacity.
3. Install the cable runs and appropriate
controllers in conjunction with a fused connection
unit. Contact gap must not be less than 3mm.
4. Working from the inside, mark out the
position of the mounting hole - 250mm wide x
250mm high.
5. Carefully cut the holes in the inner and outer
brick courses to form a suitable aperture to
receive the unit. Ensure that this is level.
NOTE: Bricks will cut more easily and
accurately if a series of holes are drilled close
together along the marked lines.
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