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1. Safety Instructions
All staff concerned must acquaint themselves with these instruc-
tions before beginning any work on the unit. Any damages to
the unit or parts of it due to improper handling or misuse by the
purchaser or the fitter cannot be considered subject to guarantee
if these instructions have not been followed correctly.
Warning
Only a qualified electrician or service personnel trained
by Swegon shall be permitted to carry out any work on
the electrical system or wire external functions in the air
handling unit.
1.1 Safety Isolating Switch/
Main Switch
On the size 004/005, 007/008, 011/012 and 014/020 units, the
safety isolating switch is externally located on the connection
hood.
On the size 025/030, 035/040, 050/060, 070/080 and 100/120
units, the safety isolating switch is externally located on the
centre section of the unit.
The air handling unit should normally be started and stopped
from the hand-held terminal; not by switching the safety isolat-
ing switch on and off.
Always switch off the safety isolating switch before servicing the
unit if not otherwise specified in the pertinent instructions.
1.2 Risks
Warning
Before carrying out any work, make sure that the power
supply to the air handling unit has been switched off.
Risk areas with moving parts
Typical moving parts are fan impellers and drive pulleys of the
rotary heat exchanger.
The lockable inspection doors serve as protection from contact
with the fans and protection for the heat exchanger. If the ducts
are not firmly connected to the fan outlets, the outlets must be
firmly fitted with a safety guard (wire mesh screen).
Warning
The inspection doors on the filter/fan sections must not
be opened while the unit is operating.
Stop the unit operating normally via the hand-held micro
terminal.
Wait until the fans have stopped before opening the
door.
There is positive pressure inside the fan section which
could cause the door to fly open.
Keep the key at a safe spot separate from the air han-
dling unit.
We reserve the right to alter specifications.
1.3 Safety Guards
The cover of the electrical equipment cubicle and the connection
hood serve as safety guards on the size 004/005 and 008 units.
On the size 012, 014/020, 025/030, 035/040, 050/060, 070/080
and 100/120 units, the lockable door over the electrical equip-
ment cubicle, and if applicable, the connection hood serve as
safety guards.
Only a qualified electrician or trained service technicians shall be
allowed to remove the safety guards.
Warning
The power supply to the unit shall be isolated by switch-
ing off the safety isolating switch before removing the
safety guard.
When the air handling unit is operating, the safety guards
must always be mounted, all inspection doors must be
closed, and the junction hood on the top of the unit must
be mounted.
GB.GOLDSKFRX.240405
www.swegon.com
3
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