Merloni Elettrodomestici
Instruction Manual Language Edition Page
Side-By-Side Refrigerator – Ariston MSZ 70 NF EN 2004.11.11 19 - 88
2. Load control
1) Aim: Immediate restoral of set freezer/fridge temperature due to temperature rise caused by load
(excessive food quantity) and frequent door opening
2) Start conditions
Fridge/freezer door opening time is more than 30 seconds each time.
The fridge or freezer load control starts (depending on the case in question).
Higher than [Fridge probe ON point +5°C --> Fridge load control
Higher than [Freezer probe ON point +5°C --> Freezer load control
3) Conditions to avoid load control
Initial starting (at power-up)
- Initial starting (at power-up)
Immediately after the pre-cooling, evaporator defrost, defrost pause cycles.
After door opening load control starts checking for required conditions.
4) Control method
4-1) On the basis of the fridge / freezer door opening time (more than 30 seconds) the fridge /
freezer fan operates at 14 V
4-2) Freezer probe ON point + 5°C: freezer fan operates at 14 V
4-3) Control on basis of fridge probe ON point + 5°C. Fridge fan operates at 14V.
4-4) Condenser fan normally operates at 10V.
5) Stop conditions
- The mode proceeds for 20 min. If, at the end of the mode, another condition that requires it
should occur, the mode will restart automatically.
- When the position is reached (Freezer probe OFF point), freezer fan load control mode is
suspended.
- When the position is reached (Fridge probe OFF point), fridge fan load control mode is
suspended.
3. Mode control times diagram
1) Load control mode Start & Stop (Normal control)
Key:
Door
F/S
F Fan
R / S
R Fan
Door Open
30 sec. after Open
Load Mode Start
Ref Load Stop
Frz. Load Stop
Frz Overload Input
Frz. Start Condition
Frz. Stop: after 20m
Door
Freezer sensor
Freezer fan
Fridge sensor
Fridge fan
Doors open
30’’ after door open
Start fans 14V supply
Stop fridge fan
Stop Freezer fan
Start 5°C + ON freezer
Start FZ fan 14V
End 14V and start 12V
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