Domus Ventilation HRXE Installation Instructions Manual

HRXE
(Standard Unit)
HRXE-OP
HRXE-H
HRXE-OPH
Mechanical Ventilation Units With Heat Recovery
Installation Instructions

1.0 INTRODUCTION

The HRXE range of units are designed to provide mechanical supply and
extract ventilation with heat recovery.
The unit is fitted with two independent fans. Each fan has full speed
control for background and boost ventilation rates. The heat exchanger
can recover up to 90% of the normally wasted heat.
1
Exhaust air
Exhaust air
from house
from house
to outside
to outside
Airflow through unit (Standard Configuration)
2
Supply air
Supply air
to house
to house
Airflow through OP unit (Opposite Hand Configuration)
The unit must remain switched on at all times to maintain
ventilation within the dwelling. Turning the unit off will cause
long term damage to the unit and building fabric.
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given
supervision or instruction concerning the use of the appliance by
a person for their safety. Children should be supervised so that
they do not play with the appliance.
LAB1355R | SEPTEMBER 2018
(Opposite Hand Unit)
(Standard Unit With Integral Humidistat)
(Opposite Hand Unit With Integral Humidistat)

2.0 INSTALLATION

Installation must be carried out by competent personnel in accordance
with the appropriate authority and conforming to all statutory
governing regulations. All mains wiring must be in accordance with the
current I.E.E. Regulations, or the appropriate standards. Ensure that the
mains supply (Voltage, Frequency and Phase) complies with the rating
label.
Intake air
Please note a clear working space is required around the installed unit
Intake air
from outside
from outside
to allow the cover to be removed and provide sufficient access for
Maintenance such as filter change. Please allow a minimum of 350mm
Supply air
in front of the unit.
Supply air
to house
to house
The fan must be installed indoors, on a suitable wall away from direct
Extract air
Extract air sources of frost, heat and water spray or moisture generation. For a
from house
from house
vibration-free result the unit must be mounted to a solid wall.

2.1 Wall Mounting the MVHR Unit

Ideally the unit will be wall mounted on a solid wall.
One part of the mounting bracket (supplied) should be offered up
to the wall, ensuring it's located horizontally. Mark the fixing points
through the pre drilled holes in the bracket and install with screws (by
others), whilst ensuring the interlock side is at the top (see figure 3).
Extract air
Extract air
from house
• Install the unit on the wall by ensuring the bracket fixed to the rear of
from house
the unit interlocks over the wall mounted bracket (see figure 4).
Exhaust air
Exhaust air
from house
from house
to outside
to outside
Intake air
3
Intake air
from outside
from outside
Note: Care must be taken to ensure the unit is installed true in
all 3 dimensions. Failure to do so may result in overflow from the
internal condensation drip tray.
See overleaf for mounting option details, on walls or in the loft
space.
Fixing Mounting Bracket to Wall
PAGE 1