Vii.8 - Thermodynamic Defrosting; Alarms - Procopi ClimExel HC-HH-62M Installation Instructions And Recommendations For Use And Maintenance

VII.8- Thermodynamic defrosting cycles:
On passing over the evaporator, fine drops of water vapour are deposited from the air onto the evaporator fins
(see paragraph I page 3).
If the ambient air is cool, these droplets can freeze, and will thus not be evacuated towards the bottom of the
machine by gravity.
The frost then accumulates steadily on the fins, and forms a cold insulating layer that prevents the air
from transferring its calories to the heat transfer fluid.
The machine is fitted with a device that detects the excessive accumulation of frost, and automatically
triggers defrosting by cycle inversion (refer to paragraph I for an explanation).
The defrosting cycle lasts, at most, 10 minutes. The machine then reverts to normal operation. If further
defrosting is required, the machine will switch back to defrosting mode after 10 minutes, this defrosting
phase will last at most 10 minutes before the machine switches back to normal operation, and so on until
defrosting is complete.
The heat pump emits a noise at the beginning and at the end of the cycle inversion phase (the sound of the
4-way valve moving).
The fan shuts down during cycle inversion, the corresponding icon goes out.
Nota bene:
o The rate at which frost accumulates will increase with increasing air humidity.
o It is not unusual for traces of frost to persist after a cycle inversion, however these patches
should not get bigger as the cycle inversions are repeated.
o Thermodynamic defrosting is effective down to an ambient temperature of approximately -15°C.
Below this temperature, switch the machine off.
Nevertheless below a temperature of - 5°C, the amount of heat transferred by the machine will
be half of its power at + 15°C
o When the weather is cold and wet, the heat pump could launch successive, regular cycle
inversions. While the heat pump is defrosting itself, it is not heating the pool water, this can
contribute to a decrease in the machine's heating capacity.
o Defrosting speed and efficiency increases with increasing pool water temperature.
VIII. Alarms:
If an alarm is tripped, the machine stops and the alarm code is displayed alternately with the pressure/
temperature on the bottom line of the control panel screen (unless the alarm has a specific icon).
If a remote installed control unit is installed, the unit will emit a continuous beep (press any key on the unit to
shut off the beep).
2009/01 - Indice de révision : C - Code : 0033385
42/48