Operating Instructions_VF335_en.pdf - 第317页
8|Service and maintenance ð There must be no cracks or chaps visible in the glass plate. d) Damaged glass plates must always be immediately replaced by qualified tech- nicians! e) Clean the glass plate (3) with a lint-…
8|Service and maintenance
8.5.3 Dynamic IR emitters with glass plate: Visual inspection and cleaning
DANGER
Risk of burns from hot surfaces!
a) Allow the heater to cool to room temperature before carrying out service and
cleaning work!
DANGER
Risk of personal and material damage due to flammable atmosphere!
a) Do not use flammable cleaning agents!
ð These can penetrate into the interior of the heater and ignite when switching
on again!
b) Immediately report any cracks or fissures in the glass plates!
c) Damaged glass plates must always be immediately replaced by qualified techni-
cians!
13 2 2
Fig.95: Dynamic IR emitters with glass plate
ü Visual inspection of the heat cartridge:
a) The thermocouple (1) must be in the correct position.
b) Have damaged thermocouples replaced by qualified electricians.
c) Clean the glass plate (3).
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 316/695
8|Service and maintenance
ð There must be no cracks or chaps visible in the glass plate.
d) Damaged glass plates must always be immediately replaced by qualified tech-
nicians!
e) Clean the glass plate (3) with a lint-free cloth and a commercial glass cleaner.
ð If heavily soiled with flux:
f) Use a cleaning agent recommended by the flux manufacturer. Never work with
hard or sharp objects!
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 317/695
8|Service and maintenance
8.5.4 Compressed air heating: Visual inspection
DANGER
Risk of burns from hot surfaces!
a) Allow the heater to cool to room temperature before carrying out service and
cleaning work!
1
2 2
Fig.96: Compressed air heating
Standby air flow
ü To check the standby air flow:
a) In the [Preheating] input dialog, in the [Convection]frame, click on the
but-
ton.
ð The button is displayed in yellow.
b) Hold your hand under blow pipe (1).
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 318/695