Periodic Check Of The Non-Condensable Gas Purge Valve; Combo Filter; Replacement Of Combo Filter - Bosch ACS 810 Repair Instructions

en | 28 | ACS 810 | Component test and maintenance
12.5 Periodic check of the non-condensable
gas purge valve
CAUTION: Only qualified technicians who
are authorized to use refrigerants may
carry out this procedure.
¶
Wear personal protective equipment
(glasses and gloves).
¶
Do not go in front of the discharge flow.
¶
The valve does not require adjustment or
lubrication. Do not tamper with it in any
way.
Fig. 4:

Periodic check of the non-condensable gas purge valve

1 Non-condensable gas purge valve
i
To ensure that the valve remains in good working
condition, periodically make it trip by pulling the
metal ring at the top.
i
While doing this, make sure that the pressure in the
cylinder is at least 8–10 bar.
i
The valve should open sharply and then close
firmly as soon as the metal ring is released.
!
This action must be quick, and do not repeat it
until only non-condensable gas is purged, with no
refrigerant.
i
The frequency depends on the valve condition,
and specifically on its cleanliness, which normally
depends on whether there are residues in the
cylinder or not.
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12.6

Combo filter

12.6.1

Replacement of combo filter

DANGER – Risk of electric shock from
dangerous voltage!
Electric shocks resulting from contact
with live parts (e.g. master switch, printed
circuit boards) can cause injury, heart
failure and death.
¶
Disconnect the mains plug before
opening the ACS 810.
WARNING – Risk of frostbite from
escaping refrigerant
Refrigerant causes severe frostbite on the
skin.
¶
Check the service hoses for damage.
¶
Firmly connect the service quick-release
couplings to the service hoses.
¶
Wear safety goggles.
¶
Wear protective gloves.
i
After 150 kg of refrigerant have been
processed through the filter, the message
"REPLACE FILTER"
appears on the display. When
this message appears, contact customer service to
order a new filter.
i
It is advisable to have the combo filter changed by
customer service.
!
Make sure the old sealing rings are removed before
securing the new filter.
!
Pay attention to correct positioning of the sealing
rings when fitting a new filter.
!
Take care not to damage any hoses or electrical
connections when changing the filter.
!
Never re-use an old filter.
!
Observe the ACS 810 menu prompting.
1. Call up start screen.
2. Open the HP and LP valves on the display and
control panel.
3. Press <Recovery>.
 ACS 810 performs a self-cleaning process, then
the recovery phase.
i
Pressure gauge must reach 0 bar.
Robert Bosch GmbH