Installing The Waste Drain - Hussmann austral DD DELI-1 Series Installation Manual

PRODUCT INSTALLATION MANUAL
4. Insulate all external pipe work to Standard practice and Customer specifications.
5. Seal off all external access holes with polyurethane foam and then bituminous paint to prevent leakage and
condensation.
6. Connect to condensing unit or compressor.
7. Pressure test all welded and fastened connections to ensure they are free of leaks.
8. Dehydrate the refrigeration system using the triple evacuation method. Use a vacuum pump to 1000 microns for
the first two evacuations and 500 microns on the third, or to the customer's specific requirements. Break
evacuations 1 and 2 with dry nitrogen, allowing the pressure to rise above atmospheric pressure each time.
9. Charge with refrigerant after final (3
Installing a Waste Drain
Each case must be connected to its own waste drain See Figure 1: service layout for of the drain up-stand. It is
recommended that 40mm DWV (PVC) piping be used.
To install a waste drain:
1. Fit an elbow and pipe to the existing pipe work.
2. Check that the drain is as per Fig (16a).
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CAUTION
Relocate or protect the expansion (TX) valve feeler
bulbs (or power lead if electronic valve) from heat.
Ensure the power lead is clear of heat and flame.
rd
) evacuation.
NOTES
Drains must be connected as per
stipulated local council requirements.
All joins must be solvent welded.
Fig (16a) Drain trap orientation
DD13 2T SERVICE DELI
Hussmann