Operating instructions

9
4 - START-UP INSTRUCTIONS
4.1 - Casing
The label with the unit data, such as order number, position
number etc. is ususally located on the acccess cover or door
of the fan compartment.
4.1.1 - 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 applicable check the sealing joints and repair if
required.
4.1.2 - Doors and access covers
Check the operation of door handles, locks and movement
of the hinges. For outside installation of the AHU check
the storm cord.
4.1.3 - Flexible connections
Check that all flexible connections are attached to the AHU.
If necessary, tighten loose screws.
4.1.4 - Earthing
Ensure that the AHU has been earthed correctly and in
accordance with local regulations. A label on the support
frame indicates where the unit should be earthed.
4.1.5 - AHU installation and connection
The floor in the room where the AHU is installed must be
level and flat to prevent connection problems. Before the
units are placed against or on top of each other, the sealing
tape supplied must be attached between the casing sections.
Place the casing sections as close as possible together before
assembly. Pull the casing sections towards each other by
placing the lifting bars first in one and then in the other
casing section. Then pull both parts towards each other
using pull ropes.
The casing sections are connected with the frames and fixing
elements supplied. If the AHU is installed outside, the roof
connecting plate provided must be installed on the roof and
sealed.
Caution: Doors and access covers must always be closed
before starting the unit.
Sealant