4
30. 07. 20. Document Number 671760
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
BPS V-CO
Installation Manual
3.3 Unit Packaging
Unless otherwise specified, unit sections will be delivered to site
covered in “shrink wrap” polythene, which should provide a more than
adequate level of protection against inclement weather.
Should alternative methods of unit protection be required (i.e. timber,
Corex, or flame retardant materials), Nuaire Limited should be notified
of the specific requirements at the pre- contract stage. Waste must
be disposed of by a registered waste carrier in accordance to national
regulations.
3.4 Unit Storage
The equipment must be stored in a dry, internal location. Ductwork
connection apertures should be sealed against the ingress of dust,
water and vermin. Note that units that are intended for external
locations are generally not fully weatherproofed until their installation,
including ductwork connections, is complete.
If the storage period is to exceed two months, contact Nuaire for
guidance on the appropriate ‘mothballing’ procedures. Do not stack
units, modules or components.
4.0 MECHANICAL INSTALLATION
Installation must be completed by competent persons, in accordance
with good industry practice and should conform to all governing and
statutory bodies i.e. IEE, CIBSE, etc.
The unit should stand upright and level on the floor, foundation
or supporting steelwork which should be rigid, flat and level and
should be capable of supporting the weight of the unit including
water or refrigerant in the coils. Nuaire takes no responsibility for the
coordination of support.
4.1 Unit Location
To prevent possible reintroduction of contaminated air through the
outside air intake, the unit should be located away from building flue
stacks or exhaust ventilators.
Once assembled and in position, sufficient free space must be available
adjacent to the unit for future inspection, maintenance, component
service, repair and replacement and connection of services. It is
recommended that at least the unit width (vertically arranged units)
+ 100mm be allowed. A minimum of 600mm is required for regular
maintenance.
IMPORTANT
Sufficient clearance for U-traps on condensate drain and overflow
connections should also be considered by the purchaser.
4.2 Air Leakage
Loading, transportation, off loading and site positioning can cause
the air handling unit structures to move, therefore panel seals will not
always remain fully intact.
It is inevitable that in such cases, re-sealing of the units panels and
joints may have to be carried out on site for the air-handling units to
achieve the required leakage classification. Door locking mechanisms
may also have to be adjusted.
Nuaire cannot be held responsible for the units failing a site leakage
test if the above have not been carried out correctly.
4.3 Module Joints
After unwrapping, temporarily remove the rubber weatherproof cover
strip and M10 base frame bolts from any modules and store in a safe
location for later use.
Apply the sealing gasket as necessary to the mating faces of the
unit frames. Typically the sealing gaskets are pre-fitted to the heat
exchanger module; ancillary modules will be provided with a roll of
sealing gasket for on-site fitting.
Make the unit joints in the following order:
•
Left and right hand side M10 bolts between the modules’ base
frames (Figure 3).
•
Left and right hand side M6 Lower 3 axis alignment clamps (Figure
4).
•
Left and right hand side M6 Middle 3 axis alignment clamps.
•
Left and right hand side M6 Upper 3 axis alignment clamps.
Air leakage, air blow marks to the unit casings and unacceptable
noise levels could result if the correct installation procedures are not
employed.
3
4
M10 Modular Base Frame Connection Bolt
3-Axis Clamp
