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9. System control
Set the refrigerant address using the DIP switch of the outdoor unit.
SW1 Function Setting
Refrigerant
SW1 Setting
address
ON
00
OFF
3 4 5 6 7
ON
01
OFF
en
3 4 5 6 7
ON
02
OFF
3 4 5 6 7
10. Handing over to the user
• Explain the following items to the end user.
- How the unit operates.
- The particular risks, the protective zone and rules of conduct that are associated with R290 refrigerant.
- How the unit is avoided from frozen damage when stopping the unit.
- Ask a dealer or an authorized technician to carry out work on the unit.
- Keep the Installation Manual and Operation Manual so that don't lose them.
- Recommend that regular maintenance be performed.
Ask a dealer to perform it.
11. Inspection and maintenance
• Refer to the Service Manual for maintenance.
12. Repair and service
Repairs must be carried out in accordance with the Service Manual.
12.1. Preparing repair and service work on the refrigerant circuit
• Work on the refrigerant circuit with flammable refrigerant in safety group A3 may only be carried out by authorised heating contractors. These heating contractors must
be trained in accordance with EN 378 Part 4 or IEC 60335-2-40 Annex HH.
• Work on electrical equipment may only be carried out by a qualified electrician.
• Use only spare parts authorized by the manufacturer.
WARNING:
• Do not fill the unit with more refrigerant than the specified amount.
Failure to follow this instruction may result in unit failure or fire hazard.
13. Decommissioning
13.1. Temporarily decommissioning the unit
1. Switch off all of the isolators to which the unit is connected in the building.
2. Disconnect the unit from the power supply.
3. If there is a risk of frost damage, drain the heating water from the unit.
13.2. Permanently decommissioning the unit
Have a authorised heating contractor permanently decommission the unit.
24
Refrigerant
SW1 Setting
address
ON
03
OFF
3 4 5 6 7
ON
04
OFF
3 4 5 6 7
ON
05
OFF
3 4 5 6 7
Note:
a) Up to 6 units can be connected.
b) Select one single model for all units.
c) For Dip switch setting for indoor unit, refer to the indoor unit's Installation
Manual.
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