6
Initial commissioning
6.1 Safety notes regarding initial com-
missioning
Incorrect initial commissioning
WARNING!
Risk to life from incorrect initial commissioning!
Incorrect initial commissioning can lead to potentially
fatal situations and cause considerable damage to
property.
–
Only skilled qualified electricians must work on
the electrical system and on motors.
–
All other initial commissioning steps must be car-
ried out by an HVAC technician.
Inspection access doors on the discharge side
CAUTION!
Risk of injury from a strong airflow on the dis-
charge side of fans!
When you open an inspection access door on the
discharge side of the fan, the velocity and pressure
of the airflow may cause the door to suddenly swing
open until it is caught by the safety catch. You could
be injured.
–
Be careful when you open inspection access
doors on the discharge side.
Sharp edges, sharp corners and thin sheet metal
parts
CAUTION!
Danger of injury from sharp edges, sharp cor-
ners and thin sheet metal parts!
Sharp edges, sharp corners and thin sheet metal
parts of the heat exchanger or of the cooling or
heating coil may cause cuts or grazes.
–
Be careful when working on these components.
–
Wear protective gloves, safety shoes and a hard
hat.
6.2 Before initial commissioning
The air handling unit has been erected, assembled, and
installed according to this manual.
Before initial commissioning, check the casing and the
following parts for damage and correct position:
Inspection access doors and openings
Seals
Handles and levers
Connections
Inspection window
Panels
Before initial commissioning:
Remove protective film, if any
Check the unit for leakages
Check inspection access doors and openings for
function and tolerance
Adjust inspection access doors,
Set up the centrifugal fan,
Insert the filters,
‘Filters, inserting’ on page 58
Set up the heating coil/cooling coil,
sioning the heating coil/cooling coil’ on page 59
Set up the multileaf dampers,
Set up the sound attenuator,
Set up the rotary heat exchanger,
rotary heat exchanger’ on page 62
Set up the run around coil system,
sioning the run around coil system’ on page 61
Set up the plate heat exchanger,
plate heat exchanger’ on page 63
Remove the protective caps from the condensate
drains and connect the drain trap,
5.3 ‘Sizing and connecting the condensate drain’
Clean the air handling unit,
Ä
Operating manual,
Maintenance.
6.3 Setting up and adjusting AHU
casing units
6.3.1 Inspection access doors
The door leaf can be adjusted vertically with the slotted
holes in the hinge block, and horizontally with the
slotted holes in the hinge bracket.
The two-part hinge bracket simplifies mounting and
removing inspection access doors. To remove an
inspection access door, remove the hinge bracket
screws.
Initial commissioning
Setting up and adjusting AHU casing units > Inspection access doors
Air handling unit X-CUBE
55
