CM-XBOX-INLINE
Cooling Module for Use with MVHR Units
nuaire.co.uk
029 2085 8200
2.0 INSTALLATION
2.1 General 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.
Please note clear working space is required around the installed unit to
provide sufficient access for maintenance (Figure 1). Please ensure duct
runs do not obstruct maintenance access points.
The unit must be installed indoors, and away from direct sources
of frost, heat and water spray or moisture generation. Ambient
temperature range -5 to 40 °C.
This unit must be earthed.
When installing the unit, take care not to damage electrical or other
hidden components –
do not drill the unit casing
.
The cooling unit is an electro-mechanical device that contains and uses
R407C refrigerant. The unit provides cooling in the range of 0.4 to 1.4
kW.
This unit contains live electrical components, moving parts and
refrigerant under pressure. Always site out of reach of children and
protect from vandalism and accidental damage.
Keep the unit horizontal during installation and level the unit in its final
position. Once in final position, leave unit for a minimum of 4 hours
before activation.
Ensure that the airflow through the unit does not fall below 100m3/h
(28 l/s) during operation.
For a vibration-free result the unit must be mounted to a solid surface
in the void. The unit is designed for ceiling mounting only (horizontal
surface).
Position & secure the unit to the ceiling using appropriate fixings
(supplied by others), ensuring that the four outer fixing holes on the
unit are accessible.
Note: The unit must be installed in an upright position as shown for
the condensate drain and for compliance with safety regulations
relating to IP protection for water drip ingress.
2.2 Condensate Drain Installation
Unit comes complete with external condensate drain pipe of 15 mm
diameter positioned 20 mm up from the base and 80mm back from the
supply/exhaust connection face.
Use conventional plumbing connections to link up with U-trap. 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.
For domestic waste pipes, the typical 1:40 (around 1.5 degrees) is
recommended. If using a dry trap various suppliers quote a minimum of
10 degrees for a pipe run in line with the unit. Ensure the cooler has its
own trap separate to the MVHR.
•
Keep the unit horizontal during installation and level the unit in its final position.
Once in final position, leave unit for a minimum of 4 hours before activation.
•
Ensure that the airflow through the unit does not fall below 100m3/h (28 l/s) during
operation.
20
80
SUPPLY
FROM MVHR
COOL AIR TO
INDOOR SPACE
EXHAUST
FROM MVHR
EXHAUST AIR
TO OUTDOORS
ACCESS ZONE
920 x 300 mm MINIMUM
ACCESS TO ELECTRICS
ACCESS FOR VISUAL
INSPECTION OF CONDENSER
ACCESS FOR
VISUAL INSPECTION
OF EVAPORATOR
COOL AIR TO
INDOOR SPACE
EXHAUST
FROM MVHR
SUPPLY
FROM MVHR
EXHAUST AIR
TO OUTDOORS
EVAPORATOR
TOP VIEW (LID REMOVED)
CONDENSOR
COMPRESSOR
CONDENSATE
DRAIN
CONDENSATE
TRAY
HIGH PRESSURE
SERVICE POINT
(COVER REMOVED)
LOW PRESSURE
SERVICE POINT
MAINS POWER
SUPPLY
SWITCH
ACCESS AT REAR
TO ELECTRICS
ACCESS PANEL TO VIEW
EVAPORATOR COIL
ACCESS PANEL TO VIEW
CONDENSER COIL
IMPORTANT
Isolate before commencing work, make sure that the unit,
switched live and Nuaire control are electrically isolated from the
mains supply and switched live supply.
1
2
Unit Overview
Unit Layout
