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8. To avoid the risk of fire, do not use the product in the presence of inflammable substances or vapours such
as alcohol, insecticides, gasoline, etc.
9. The air or fumes being extracted must be clean and free from greasy particles, soot, chemicals and
corrosive agents, inflammable or explosive mixes.
10. The device must be installed by professionally qualified personnel.
11. The product must be connected to the electricity supply by means of a triple-pole switch with a minimum
contact opening distance greater than 3 mm.
12. To ensure optimum operation, do not block the air intake and exit vents.
13. If the room being ventilated contains a fuel burning appliance, the installer must ensure that air replacement
is adequate both for the fan and the fuel burning appliance.
14. The unit should not be used as an activator for water heaters, stoves, etc.
15. Any ducting used must be free from blockages
16
.
Where ducting is installed in an unheated space, all of the ducts should be insulated.
17. Your fan must not be exhausted into a duct which is already used for any other purpose (see Approved
Document F1 2006 for guidance)
OPERATION
1. Purge Box units are suitable for ceiling or wall installation as stand alone units or in conjunction with a Vectaire
MVHR system.
In order to comply with Construction (Design & Man agement) Regulations, sufficient access
for safe maintenance (recommended on an annual basis), or removal following installation, MUST be provided
for this product. See dimension.
2. If one of the spigots is not connected to ducting, a safety grille
MUST
be fitted to that spigot, so that it is
impossible for any moving part to be touched.
3. Purge Box units have three, integrated, fully adjustable speeds
4. An overrun timer is fitted to this product. When the boost is switched off, the fan will continue to run at boost
speed for up to 30 minutes. The length of the overrun period can be adjusted using the TIMER adjustment on
the control board (see page 6).
5. See Page 6 for setting purge speeds.
ELECTRICAL CONNECTION
WARNING: these appliances must be earthed and all wiring must conform to current IEE Regulations and all
applicable standards and Building Regulations.
• The unit is suitable for 230V, 50Hz Single phase supply fused.
• The unit is supplied with a mains rated 4 core flexible cord (black, brown, grey and green/yellow)
• A triple pole switch having a minimum contact separation of 3mm must be used for isolation and located close
to the product.
• Boost controls must not be located within 1 metre of a cooker or where they may be affected by excessive heat
or moisture
• Boost controls should be clearly identified and conveniently located.
• The boost speed can be triggered by a switched live connection from a variety of external devices including:
- A light switch (if more than one light switch is used, each one must be a double pole switch)
- Remote humidistat (230V - DRH240)
- Passive infra red (230V - PIRFF)
- Thermostat (230V - THM)
- Remote switch/pull cord - 230V
(
*
PIRFF, DRH240 and THM may have integral over-run timer which controls the length of time that the fan will
continue to operate at its boost speed after the boost has been switched off)
