6 720 809 134 (2013/09)
Compress 3000 DW FII
Service | 27
Fig. 45
Safety valve
[1] Safety valve
[2] Sequence
10.6 Refrigerant circuit
10.7 High limit safety cut-out
The appliance is equipped with an automatic safety facility.
This safety facility switches off the DHW cylinder in order to
prevent the risk of injury if the DHW cylinder water temperature
rises above a certain limit.
Resetting the high limit safety cut-out
▶ Remove the front protective covering (
Fig. 3, [24]).
▶ Remove the protective cap from the resistor.
▶ Push the reset button until it stops (
Fig. 46, [1]).
Fig. 46
Temperature control unit
[1] Reset button
[2] Temperature setting of the high limit safety cut-out.
10.8 Draining the cylinder
▶ Isolate the appliance from the power supply.
▶ Close the water shut-off valve at the cold water inlet and
open one DHW tap.
▶ Open the drain tap.
-or-
▶ Open safety valve.
▶ Wait until the water stops flowing out of the safety valve
drain tap and the appliance has been completely drained.
10.9 "Service" menu
CAUTION:
Risk of scalding!
▶ Ensure that draining water from the
safety valve presents no risk to people or
property.
NOTICE:
Refrigerant leak!
▶ Maintenance work may only be carried
out on the refrigerant circuit (e.g. on the
compressor, condenser, evaporator,
expansion vessel, etc.) by a certified
contractor.
NOTICE:
The high limit safety cut-out may
only be reset by a qualified contractor!
The high limit safety cut-out must be reset
manually, but only once the cause of the fault
has been eliminated.
1
6720608467-18.2AL
2
After resetting, ensure that the temperature
controller is in the position shown in Fig. 46.
Do not damage the sealing.
CAUTION:
Risk of scalding!
Check the appliance's DHW temperature
before opening the safety valve.
▶ Wait until the water temperature has
dropped enough to prevent scalding and
other damage.
This menu is meant to assist the contractor
and may be used by the contractor only.
6720646160-27.1V
2
1
Summary of Contents for Compress 3000 DW FI Series
Page 29: ...6 720 809 134 2013 09 Compress 3000 DW FII 29 Notes ...
Page 30: ...6 720 809 134 2013 09 Compress 3000 DW FII 30 Notes ...
Page 31: ...6 720 809 134 2013 09 Compress 3000 DW FII 31 Notes ...
Page 32: ...Bosch Thermotechnik GmbH Junkersstrasse 20 24 D 73249 Wernau www bosch thermotechnology com ...
