78
Checking the expansion vessel and heating circuit pressure
Observe engineering informa-
tion.
Vitocal technical guide
Checking the free running of the fan in the external unit
Danger
Starting the fan with the external
unit open can lead to severe inju-
ries.
Isolate the external unit from the
power supply and safeguard
against reconnection.
Be aware there may be a fan run-
ning downstream.
1.
■
Type AWB/AWB-AC 201.B04:
First remove the top cover, then the
front panel.
■
Type AWB/AWB-AC 201.B07,
201.B10, 201.B13:
Remove the air discharge grille
from the external unit.
2.
Turn the fan by hand.
Cleaning the external unit heat exchanger (evaporator)
Danger
Touching 'live' components and
their contact with water can result
in severe injury due to electric
shock.
Isolate the external unit from the
power supply and safeguard
against reconnection.
Be aware that the fan may run
on.
Cleaning with compressed air
1.
Open the casing of the external unit.
!
Please note
The sharp edges of the heat
exchanger can cause inju-
ries.
Avoid contact with the heat
exchanger.
2.
!
Please note
Excessive air pressure from
the front and sides can result
in the deformation of the alu-
minium fins of the heat
exchanger.
Only point the compressed air
gun at the heat exchanger
from the front and at an ade-
quate distance.
Blow out the heat exchanger
from
the inside out
with compressed air.
3.
Check the aluminium fins of the heat
exchanger for deformation and
scratches; if necessary, repair with a
suitable tool (e.g. fin comb).
4.
Close the casing of the external unit.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5604 692 GB
Содержание AWB 201.B04
Страница 88: ...88 Opening the programming unit 1 3 2 2x Troubleshooting Repairs 5604 692 GB...
Страница 89: ...89 Removing cover from programming unit if necessary 5 4 4x Troubleshooting Repairs cont 5604 692 GB Service...
Страница 90: ...90 Placing the control panel in its service position 4x 1 3 2 Troubleshooting Repairs cont 5604 692 GB...
Страница 100: ...100 C B D A Parts lists internal unit Overview of assemblies internal unit 5604 692 GB...
Страница 102: ...102 0001 0005 0006 0004 0002 0008 0003 0007 0008 Parts lists internal unit Casing internal unit cont 5604 692 GB...
Страница 139: ...139 5604 692 GB...