Saunier Duval SDH 18-025 NW Installationshandbuch Seite 49

1
Fig. 12.7 Protective covers.
Legend
1 Service hole lid
2 Two and three-way valve covers
• Connect the unit and run it for a few moments checking that
it carries out its functions correctly (for more information see
the user manual).
12.4 Troubleshooting
If the event of a gas leak, proceed as follows:
• Recover the remaining refrigerant from the system.
- You will need the correct refrigerant recovery unit and
refrigerant reclaim cylinder to achieve this.
WARNING!
a
Never release refrigerant into the environment!
Refrigerant R410A is a harmful product for the
environment.
• Check the flaring joins.
• Repair the leak, replace indoor and outdoor parts which are
the cause of the leak as necessary.
• Carry out the vacuum (section 12.2).
• Fill the unit with the correct weight of refrigerant using
accurate and calibrated electronic scales.
• Proceed to check for leakage as described above.
SDH18-NW-I_EN - 05/14 - Saunier Duval
2
MAINTENANCE
- 21 -
EN