Rational COMBIMASTER Operating Instructions

- 33 -
Servicing - Steam generator descaling
Your appliance is equipped with the patented
automatic Self Clean system. Automatic Self Clean
significantly extends the period between descaling
intervals. The steam generator in your appliance
still needs regular descaling, depending on water
hardness and use.
We recommend the following descaling intervals,
based on 8 hours’ steaming per day:
up to 18 °dH (to 3.2 mmol/litres) at least 1x
annually
up to 24 °dH (to 4.3 mmol/litres) at least 2x
annually
over 24 °dH (to 4.3 mmol/litres) at least 3x
annually
These recommended descaling intervals may
vary from the approximate values given above,
depending on the composition of the water
(e.g. minerals).
Steam generator descaling
Close cabinet doors.
Press core temperature button down for 10
seconds until the cabinet temperature display
shows „CLEn“.
Rotate cabinet temperature knob to the right
until „CALC“ appears on the display.
The descaling process is started.
If the cabinet temperature is over 40 °C
when descaling commences, „Cool Down“ starts
automatically – see „Cool Down“ display
Steam generator is drained
When pumping out has finished the display shows:
You will be asked to top up with descaling fluid.
Open cabinet doors.
CLEn
CALC
1
3
2
4
5
6
----
CALC
FILL

Rational COMBIMASTER Specifications

General

Manufacturer	Rational
Category	Oven
Type	Combi Oven
Cleaning	Automatic cleaning system
Power Consumption	Varies by model
Steam Injection	Yes
Dimensions	Varies by model
Weight	Varies by model
Temperature Range	30-300°C
Cooking Modes	Convection, steam, combination
Capacity	10-20 gastronorm containers