Leak And Pressure Testing - Wolf BWL-1S-05 Installation And Operating Instructions Manual

15.4 Leak and pressure testing
Carry out the leak and pressure test using dry nitrogen.
Note: Certificate of competence
The handling of refrigerant and work on the refrigerant circuit must be carried out by a refrigeration
engineer or other suitably qualified person, such as a heating system installer with a certificate
of competence (to para 5, section 3 of the ChemKlimaschutzV [or local regulations] in conjunction
with (EC) Regulation No. 303/2008 Category I). Applicable standards and regulations and
recognised engineering standards must be observed.
Suitable personal protective equipment must be used when handling refrigerant.
Refrigerant R410A used in WOLF split heat pumps is an air-displacing, non-toxic gas.
Uncontrolled release of refrigerant may result in breathing difficulties and asphyxiation.
Observe the corresponding regulations and guidelinesfor handling this refrigerant.
Ensure adequate ventilation in enclosed spaces.
Observe the regulations and guidelines for handling R410A.
Direct contact with refrigerant can be harmful to skin.
Wear protective goggles and gloves.
When filling the refrigerant lines, adding refrigerant or drawing it off from the system, the water
Please
carrying side of the plate heat exchanger in the indoor unit must have water flowing through it
note
or be drained completely. Otherwise, the plate heat exchanger may be damaged by freezing water.
The installed refrigerant lines and all necessary connectors must have suitable thermal insulation.
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Connecting the refrigerant lines
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