Product Description; Fitting Instructions - BPC Vent-Axia Integra Installation And Wiring Instructions

PRODUCT DESCRIPTION

The Integra is a void/ loft mounted heat recovery ventilation unit for domestic and commercial applications. It is designed for connection to
100mm-diameter insulated flexible ducting on to rigid ventilation ducting.
The unit's two fans and heat exchanger arrangement simultaneously supply and extract air while transferring heat from the stale exhaust airflow
to the fresh intake airflow. This provides up to 70% heat recovery from the stale extracted air.
Separation of the exhaust airflow and intake airflow is maintained throughout the unit.
The fan motors have maintenance free self-lubricating long life bearings and are fitted with thermal overload protection, which in the event of a
fault causing a motor to overheat will cut off the electrical supply to that motor.
The electrical power consumption of the unit is 170 watts when running at full speed.
The unit can be controlled by a trickle/ boost switch (455213) (See Fig.2a) or with an ambient response humidity sensor (563550) for humidity
control (See Fig. 2b). For maximum controllability we recommend that the 150VA transformer (563538A) is used which enables the selection of
trickle settings to match a dwellings volume.(See Fig.2c & Fig.2d) These are available from your local Vent-Axia stockist.
To achieve the stated Energy Efficiency rating the unit should be connected so that it is controlled via two sensors/switches and has 3 running
speeds, Fig.2d shows an example of this.
A summer bypass switch (409999) is available (See Fig.3).

FITTING INSTRUCTIONS

1. Remove the ventilation unit, together with the ceiling hanger kit from the packaging.
2. After noting the positions of the duct spigots, cable and drainage connection on the ventilation unit (see Fig. 1). Select a suitable
installation site and type. Note that the unit must be mounted with the drainage at the bottom (2-degree tilt towards the drain). The site
selected must allow sufficient space around the unit for the removal of the ducts, cover and heat exchanger for maintenance and servicing
purposes.
3. If appropriate, provide mains electrical supply and drainage system in the vicinity of the installation site.
4. Typically there are three forms of installation for the Integra.
To mount the unit on joists: Place the unit across two beams and attach the appropriate cabling, drainage and ductwork to the unit, with the
Vent-Axia logo facing up. For optimum performance, ensure the ductwork does not turn 90deg directly off the spigots. The unit should, for
optimum drainage, be tilted by 2 degrees towards the drain side. See Fig. 1a.
To suspend the unit from rafters: Use the kit 456428 four strap-hangers and mounting channels. Attach four hooks to the joists then attach
the mounting channels to the base of the unit with the 4 screws & washers provided then attach the strap-hangers onto the channel fixing holes.
With the Vent-Axia logo facing down, lift by the strap-hangers and hang on the hooks on the joists in a horizontal position. The unit should, for
optimum drainage, be tilted by 2 degrees towards the drain side. See Fig. 1b.
To suspend the unit in a ceiling void: Use the kit 456428 four strap-hangers and mounting channels. Attach four hooks to ceiling structure
then attach the mounting channels to the base of the unit with the 4 screws & washers provided then attach the strap-hangers onto the channel
fixing holes. With the Vent-Axia logo facing down, lift by the strap-hangers and hang onto the hooks on the ceiling structure in a horizontal
position. The unit should, for optimum drainage, be tilted by 2 degrees towards the drain side. See Fig. 1c.
Please note - the situation and type of installation for the unit must be decided and assembled before any drainage knockouts are
removed, as they cannot be refitted.
5. Having decided upon a location and position remove the knock out for the condensate drain, this must be at the lowest point. Connect the
drain of the ventilation unit to the drainage system.
6. Install suitable internal and external grilles/ terminals and connect them to the ventilation unit using suitable 100mm ducting. If flexible
ducting is used, it should be stretched in order to obtain the best performance.
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