INSTRUCTIONS FOR:-
3kW PIR CONTROLLER
WH-402
Thank you for purchasing a BN Thermic product. Manufactured to a high standard, this product will, if used according
to these instructions and properly maintained, give you years of trouble free performance.
1. INTRODUCTION
The WH-402 utilises passive infrared technology to detect heat radiation of moving human bodies. Upon detection,
the attached heating load will activate for a user-determined time period. An integral daylight sensor can ensure night time
only operation.
This product is suitable for wall or ceiling mount. Heating loads connected must not exceed maximum 3000W or 600W if
used for fluorescent/low energy lighting. Do not attempt to install during wet weather. If in any doubt, consult a qualified
electrician. Not suitable for use with discharge lighting.
Parts included
PIR Sensor unit.
Restrict RHS detection Restrict LHS detection
Instruction manual. Please keep safe for future reference.
Accessory Pack.
Tools and parts needed
3 Core flexible cable.
Electric/hand-held drill & bits.
Terminal or Electricians screwdriver.
Large slotted / Philips screwdriver.
Wire cutters.
2. IMPORTANT INFORMATION:- LIGHT POLLUTION AND CONSIDERATE LIGHTING
Please be aware of the annoyance over-lighting an area can cause to your immediate neighbours. Light pollution caused
by incorrectly installing a unit or over-lighting an area can be limited by carefully considering the location and position of your
unit before installation. The light spread on all halogen floodlights can be reduced by angling the floodlight downwards on
the mounting bracket. This will also concentrate the light on your property and limit the potential inconvenience of the light
shining into your
neighbour’s windows etc.
3. SELECTING A LOCATION
The motion detector has a number of
detection zones, at various vertical and
horizontal angles as shown (see diagram A).
A moving human body needs to cross/enter
one of these zones to activate the sensor.
The best all-round coverage is achieved
with the unit mounted at an optimum height
of 2.5m. Careful positioning of the sensor
will be required to ensure optimum
performance. See diagram A detailing
detection range and direction. The unit will
not detect through glass (e.g. in a glazed
porch). The detector is more sensitive to
movement ACROSS its field of vision than to
movement directly TOWARDS (see diagram
B). Therefore position the unit so that the
sensor looks ACROSS the likely
approach path. Avoid positioning the
detector where there are any sources of
heat in the detection area (extractor fans,
tumble dryer exhausts etc.) including
opposite any other light sources such as other security lights. Reflective surfaces (i.e. pools of water or white-painted
walls) and overhanging branches may cause false activation under extreme conditions.
During extreme weather conditions the motion sensor may exhibit unusual behaviour. This does not indicate a fault with
the sensor. Once normal weather conditions return, the sensor will resume normal operation.
IMPORTANT:
PLEASE READ THESE INSTRUCTIONS, NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS, AND
CAUTIONS. USE THIS PRODUCT CORRECTLY, AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE
TO DO SO MAY CAUSE DAMAGE AND / OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY.
