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mrcool.com | Page 14
• Precautions should be taken to prevent heat damage to service valve by wrapping a wet rag
around it, as shown in the image below. Also, protect all painted surfaces and insulation during
brazing. After brazing, cool joint with a wet rag.
•Valve can be opened by removing the plunger cap, and then fully insert a hex wrench into the stem
turning counter-clockwise until the valve stem just touches the chamfered retaining wall.
Fig. 10-2