Testing Of Drain Piping - Bosch Climate 5000 Series Installation Instructions Manual

Figure 17
1. T-joint converging drain pipes
NOTICE:
 Drain piping connections. Do not connect the drain piping
directly to sewage pipes that smell of ammonia. The
ammonia in the sewage might enter the indoor unit through
the drain pipes and corrode the heat exchanger.
 To ensure no excessive pressure is applied to the included
drain hose. Do not bend or twist when installing (this may
cause leakage).
Bosch Climate 5000 Series Four Way Cassette Ductless Split Air Conditioner / Heat Pump (06.2022)
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6.4 Testing of Drain Piping

After the piping work is fi nished, check if unit drains correctly.
 Put approximately 1/4gal. of water into the drain pan through the fresh
air intake. Make sure not to pour water over the drain pump or any electric
parts including the drain pump. Method of adding water is shown below
in figure 18.
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Approx.
1/4 gal.
of water
Figure 18
1. Plastic water bottle and tubing (tube should be about 10cm/3.9in long)
2. Drain pan
3. Fresh air intake
 When electric wiring work is finished, check drainage flow during COOL
operation, explained in "Test Operation" in Section 13.
Installation Instructions
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