Haier HSU09VHG-W Installation Manual

Also see for HSU09VDB-G: Operation manual

Contents

INSTALLATIONPAGE 6ENGLISHHazard of Explosion! Never use an open flame to detect gasleaks. Explosive conditions may occur. Use a leak test solutionor other approved methods for leak testing. Failure to followrecommended safe leak test procedures could result In deathor serious injury or equipment or property damage.Use only dry nitrogen with a pressure regulator forpressurizing unit. Do not use acetylene, oxygen orcompressed air or mixtures containing them for pressuretesting. Do not use mixtures of a hydrogen containingrefrigerant and air above atmospheric pressure for pressuretesting as they may become flammable and could result inan explosion. Refrigerant, when used as a trace gas shouldonly be mixed with dry nitrogen for pressurizing units. Failureto follow these recommendations could result in death orserious injury or equipment or property damage.5.1 Step - 5.1Using a tank of nitrogen with attached regulator, charge thesystem with 500 PSIG of dry nitrogen. Use adapter AD-87(field supplied) to connect to the valve. Check for leaks at theflare fittings using soap bubbles or other detection methods.If a leak is detected, repair and recheck. If no leaks aredetected, proceed to evacuate the system.Step 5.1Step 5.3Step 5.2Step 5.4AStep 5.5AStep 5.6Step 5.4BStep 5.5BIllustration 5Leak TestSystem EvacuationStep 5 - Leak Test and Evacuation5.2 Step - 5.2Attach a manifold gauge, micron gauge, and vacuum pumpto the suction line port using adapter AD-87 (field supplied).(Illustration 5)Evacuate the system to 350 microns.Close the vacuum pump valve and check the microngauge. If the gauge rises above 500 microns in 60 seconds,evacuation is incomplete or there is a leak in the system. Ifthe gauge does not rise above 500 microns in 60 seconds,evacuation is complete.5.3 Step - 5.3Remove the adapter and hose connection from the suctionline port, and replace the cap.5.4 Step - 5.4A & 5.4BRemove the cap from the liquid line valve. Using the hexwrench, open the valve, then replace and tighten the cap.5.5 Step - 5.5A & 5.5BRemove the cap from the suction line valve. Using the hexwrench, open the valve, then replace and tighten the cap.5.6 Step - 5.6Wrap the lineset, drain line, and wiring starting at the bottomof the bundle with an overlap type wrap, concluding at the