2. Guideline for each installation process
19 _ Heat pump 50Hz/R410A
Part 3 Design and installation
2) Drain pipe insulation
- Drain pipe should be insulated all connected joints and ends.
- Do not use the loose fitting insulation.
3) Drain water leakage test
- Water leakage test should be performed 24 hours later after drain work finishing.
- In the test, only water should be used. Other liquids are unacceptable.
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