3
16. 03. 21. Document Number 671863
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
MRXBOXAB-ECO4-AE(SC/SW)
Installation Manual
3.4 Condensate Drain
An additional straight multi-fit connector is included with the ancillary
items supplied to extend the condensate drain connection of the MVHR
unit outside the enclosure. The threaded connector should be coupled
to the corresponding connection of the MVHR unit through the square
cut out in the base panel of the enclosure. Care should be taken to not
over tighten this joint as this may result in the inner drain connection
coming loose making removal difficult if required in the future.
The threaded nut can then be removed from the multi-fit connector
and the adhesive backed cover plate passed over the multi-fit
connector and affixed to the enclosure base panel (Figure 6).
•
The condensate must be discharged under a water level in a U-trap
drainpipe or an alternative drain method which acts as an airlock.
•
The condensate discharge drain is a 32mm male threaded
connection.
•
If using a U-trap, please ensure the U-trap has been filled to a
suitable level of water to avoid any air locks.
•
If the condensation pipe is fitted in an unheated space the pipe
should be in insulated to prevent freezing.
Nuaire recommend MVHR-DRAIN be used as the primary
condensate take-off (Figures 8 and 9).
3.5 Extract / Input Areas
The unit is designed to extract air from all wet rooms e.g. bathroom,
kitchen, en-suite, utility room (with sink). WC’s do not need to be
ventilated if openable windows are fitted.
Supply air should be to all habitable rooms e.g. bedrooms and lounge.
Extract / input grilles should be adjustable valve types (not supplied).
External grilles are to have a minimum free area of 12,250 mm
2
.
=
=
=
726
=
41
0
10
0
143
48
48
38
70
60
Summer / Winter Cable entry point.
Mains Cable Connection
Note:
Any Items being accomodated in structure design should
include sufficient clearance to allow for assembly tolerances
and for ease of installation when positioning on site.
43
43
21
Condensate drain connection
(standard hand configuration).
For opposite hand configuration position
will be mirrored to the other side.
4x M10 Flanged head bolts
protruding from base to be
accomodated in structure design.
2x Rivet Heads
4x M8 Mounting Points
2x Hatched regions details
compulsory support areas,
further support may be required
depending on structure design
(supplied by others).
5
Mounting Points
B
B
Multi-fit
Connector
Cover Plate
Enclosure
Base Panel
6
Condensate Connection
Min 5
o
Drop
7
Condensate Trap Installation
Condensate pipe connection to
unit and a typical example of a
“U” trap drainpipe
(Standard
configuration only).
