Maintenance - Samsung AE050RXYDEG Installation Manual

Maintenance

Listed checks and inspections shall be implemented regularly so that the unit can operate as design intention in production
site .
Always switch off the unit and remove power cable from the electric source before carrying out any maintenance or repair
works .
Mentioned actions shall be carried out at least once a year by qualified personnel .
1 . Water pressure
- Check if the water pressure is above 0 . 3 bar . If necessary, fill a supplement water .
2 . Water filter
- Use water filter which is available for cleaning and clean it regularly .
3 . Water pressure relief valve
- Check for correct operation of the pressure relief valve .
- The valve will work over the designated pressure .
- If there is leakage of water or water splashed in normal condition, please contact your local installer .
4 . Glycol
- Record and check the glycol concentration and the pH-value in the system at least once a year .
- A Ph-valve below 8 . 0 indicates that a significant portion of the inhibitor has been depleted and that more inhibitor
needs to be added .
- When the Ph-value is below 7 . 0 then oxidation of the glycol occurred, the system should be drained and flushed
thoroughly before severe damage occurs .
- Make sure that the disposal of the glycol solution is done in accordance with relevant local and national regulation .
Adding refrigerant
The Heat Pump unit is provided to users with basic amounts of refrigerants as initial setting values . While using the unit or
doing refrigerant piping works, there can be some loss of refrigerants compared to initial amounts . To run the units properly,
keep the amount of refrigerant which SAMSUNG designated .
Procedures as below is describing how to adding the amount of refrigerant .
• R-32 Shall be added as liquid phase .
• Adding and recharging works shall be by Charging Ports .
WARNING
1 . Connect the manifold gauge and purge the manifold gauge .
2 . Open the manifold gauge valve of the liquid side Charging Ports and add the liquid refrigerant .
3 . If you cannot fully recharge the additional refrigerant while the outdoor unit is stopped, use the key on PCB in the Heat
Pump to run for recharging the remaining refrigerant .
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