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12
MaiNTENaNCE
The checks and inspections listed must be implemented regularly,
so that the unit can operate as intended at the production site.
Always turn off the unit and unplug it from the power supply
source before carrying out any repairs or maintenance.
The operations mentioned must be carried out by qualified
personnel at least once a year.
Glycol
- Record and check the concentration of glycol and the pH value
in the system at least once a year.
- A lower pH value than 8.0 indicates that the inhibitor is running
out and must be topped up.
- When the pH value is lower than 7.0 then glycol oxidation has
occurred. The system must be drained and washed thoroughly
to prevent severe damage.
- Make sure that glycol solution is disposed of in accordance
with relevant local and national regulations.
Aggiunta di refrigerante in condizioni di ra reddamento
pressure
Lato bassa
pressione
Bilancia
Scale
Aggiunta di refrigerante in condizioni di riscaldamento
Lato bassa
pressione
adding refrigerant in cooling conditions
Manifold pressure gauge
Manometro del collettore
Low
High
Lato alta
pressure
pressione
side
side
Lato gas
Gas side
Manometro del collettore
Lato alta
pressione
Lato gas
12.1 addiNG rEfriGEraNT
The heat pump is supplied to users with a basic amount of
refrigerants, as per initial setting values. While using the unit
or doing work on the refrigerant pipes, refrigerant may leak,
thus reducing the initial amount. To properly operate the units,
keep the amount of refrigerant recommended by Immergas
unchanged.
Refer to the following procedures to add the refrigerant amount.
aTTENTiON:
- r-32 is added as a liquid phase.
- use the Charging ports for additions
and charging
Carica di aspirazione
Intake charge
Outdoor
Unità
unit
esterna
Lato liquido
Liquid side
Valvola di servizio
Service valve
Carica di aspirazione
Unità
esterna
Lato liquido
Alpha Hydro Heat Pump
41
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