7 Cleaning and servicing the heating system – Procedure
146
HDG M299/300/350/400 - Version 1 - en
©
HDG Bavaria GmbH 07/2008
C
LEANING
THE
CONTROL
UNIT
1.
Clean the control unit with a moist, lint-free cloth.
2.
For stubborn dirt, use a mild detergent.
3.
Wipe the control unit dry with a soft cloth.
✓
The control unit has been cleaned.
C
HECKING
THE
DRIVE
CHAINS
1.
Activate the maintenance function.
✎
See section “Maintenance function” in this chapter.
Figure 7/15 - Control unit for HDG Control
$POmH
.POJUPS
J
Important!
✎
Observe the “Generally applicable safety instructions” in this
section.
Warning!
Risk of injury from automatically driven components
If the heating system is switched on, the gears and drive chains may
start unexpectedly. Body parts could be crushed during cleaning
and servicing work.
Turn off the main switch and secure it against being turned back on
before you check the drive chains.
Summary of Contents for M299
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