Domus HRX-aQ AQH200-B Handleiding voor installatie-instructies - Pagina 4
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Pagina afdrukken2.2 Physical Specification
2.
Unit Dimensions
net weight 7.9kg
Rating: 230V 50Hz 59W (0.54A)
2.3 Main Features
2.3.1 Thermal Bypass
The HRX-aQ is fitted with a fully automatic 100% heat exchanger
bypass mechanism. Time clock control and manual override are also
available.
In automatic mode, the bypass will open when the indoor target
temperature reaches a pre-set value. Using the interface, the trigger
temperature can be set between +15°C and 25°C.
The interface contains an optional frost protection system. During
periods of very cold weather, the fresh air supply fan will automatically
reduce in speed to approximately 20% of its commissioned setting to
reduce the load on your heating system and avoid possible freezing of
the heat exchanger. During these periods, the extract fan will increase in
speed to its commissioned boost speed to maintain an even air pressure.
Using the interface, the trigger temperature can be set between -15°C
and +5°C.
3.0 INSTALLATION
The following instructions are intended to help prevent hazards.
Installation should only be carried out by a qualified electrician and
competent persons in clean, dry conditions where dust and humidity are
at minimum levels.
We advise installers to fix all mains, switch and sensor wiring
(in accordance with the latest edition of the Wiring Regulations)
prior to fixing the HRX-aQ unit in position.
3.1 Preparation
When accepting delivery of the appliance, inspect for transit damage. If
in doubt, call our Customer Services team on 03443 715523.
The HRX-aQ appliance can be fitted directly to a concrete ceiling or
suitable horizontal timber support.
Appropriate screw fixings to suit the support medium will need to be
supplied by the installer. The built-in mounts suit 4 x 4mm (No.8) pan
head screws.
Ensure that there is sufficient space for access to the wiring
centre (cover removal), the condensation fittings and ductwork
Ensure that there is sufficient space below the appliance to access the
filters and for carrying out any future maintenance on the appliance.
LAB1199R | OCTOBER 2023
The HRX ceiling appliance must be connected to the duct work as
shown below; duct connections can not be substituted.
When viewed from below, the filter access and duct configuration is as
shown on the diagram below:
3.
Duct Configurations
3.2 Fitting 297 Condensate Drain Kit
Using a small amount of solvent weld suitable for ABS pipe fittings (not
supplied), attach the threaded socket to the selected condensate outlet
spigot (Figure 4). Important: follow the health and safety and user
instructions supplied with the solvent weld. This is particularly important
when working in confined spaces.
When the threaded socket is secure, fit and hand-tighten the threaded
elbow or alternatively the threaded straight adapter, making sure that
the rubber seal washer is seated correctly. Gently push the waterless
trap onto the elbow stem. Important: check that the arrows printed
on the trap point away from the HRX-aQ appliance (in the direction
of flow) and prior to fitting, ensure that the waterless trap operates
correctly by running a trickle of water from a tap through the trap in the
direction of the arrows.
Using the remainder of the kit items, complete the condensate
drain-system to suit the dwelling layout. Important: the drain must
incorporate a continuous fall to the nearest waste water network.
The condensate drain system should be adequately supported and
suitably insulated if it passes through unheatedspaces and voids (e.g.
loft spaces) to prevent freezing.
4.
Condensate Drain Connection
Filter access
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