Carrier AiroVision 39 HQ, Assembly/Installation, Commissioning, Maintenance Manual

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10. START-UP INSTRUCTIONS
10.1. Casing
The label indicating unit data, such as order number,
unit type etc. is usually located on the access cover
or door of the fan compartment.
10.2. Casing panels
Check the AHU panels for any damage. Any dirt or
stains must be removed from the surface to prevent
possible long-term damage. Building debris left on
the roof must be removed. Dirt can be removed with
water and a mild house-hold soap solution. Damage
can be repaired by thoroughly cleaning the affected
surface, then treat and paint as necessary. If appli-
cable check the sealing joints and repair if required.
10.3. Doors and Access / Guard Covers
Check the operation of door handles, locks and
movement of the hinges.
10.4. Flexible Connections
Check that all flexible connections are attached to the
AHU and if necessary, tighten loose screws.
10.5. Earthing
Ensure that the AHU has been earthed correctly
and in accordance with local regulations. A label on
the base frame indicates where the unit should be
earthed.
10.6. Air Handling Unit Installation and
Connections
The floor in the room where the AHU is installed must
be water-tight and water-drainable to prevent connec-
tion problems. Before the units are placed against or
on top of each other, the sealing tape supplied must
be attached between the casing sections.
Caution: Before assembling the sections side-by-
side or stacked, insulation band supplied should
be applied over section connection areas.
Place the section as close as possible together be-
fore assembly.
Assembly the sections towards each other by the aid
of lifting bars and pulling ropes.
The sections are connected to each other with sec-
tion connection strips and aluminium metal sheets
supplied.
Sections pulled together are connected with stud
bolts over cell connection strips located opposing to
each other.
Than, remove section connection strips one by one
and screw aluminium bars instead. (Warning: Never
leave cell connection strips on the unit.)
If the AHU is installed outdoors, the roof connecting
plate provided must be installed on the roof and when
required properly sealed.
10.7 Siphon
It is advised to use siphon to have a constant
water drain at all the outlets of the cooling coil,
humidifier and other wet areas of the Air Han-
dling Units.
Siphon application is very important not to have
air suction or leakage from these outlets and
also draining the water without overflow which
may move inside the unit.
For the sizing of the siphon (internal height of the
siphon), static pressure of the location must be
considered.
For the positive and negative pressures it is
mandatory to use different siphons (See Fig. 49
Fig. 48. Roof installation, method 2