Friedrich 2010 HAZARDGARD SH15M30A, Руководство по обслуживанию

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• R-410A pressure is approximately 60% higher than R-22 pressure.
• R-410A cylinders must not be allowed to exceed 125 F, they may leak or rupture.
• R-410A must never be pressurized with a mixture of air, it may become
flammable.
• Servicing equipment and components must be specifically designed for use with R-410A and
dedicated to prevent contamination.
• Manifold sets must be equipped with gauges capable of reading 750 psig (high side) and 200
psig (low side), with a 500-psig low-side retard.
• Gauge hoses must have a minimum 750-psig service pressure rating
• Recovery cylinders must have a minimum service pressure rating of 400 psig, (DOT 4BA400
and DOT BW400 approved cylinders).
• POE (Polyol-Ester) lubricants must be used with R-410A equipment.
• To prevent moisture absorption and lubricant contamination, do not leave the refrigeration
system open to the atmosphere longer than 1 hour.
• Weigh-in the refrigerant charge into the high side of the system.
• Introduce liquid refrigerant charge into the high side of the system.
• For low side pressure charging of R-410A, use a charging adaptor.
• Use Friedrich approved R-410A filter dryers only.
The following is a list of important considerations when working with R-410A equipment
R-410A SeALeD SYSTeM RePAIR CONSIDeRATIONS
Do not puncture, heat, expose to flame or incinerate.
O nly certified refrigeration technicians should
service this equipment.
R410A systems operate at higher pressures than
R22 equipment. Appropriate safe service and
handling practicces must be used.
O
nly use gauge sets designed for use with R410A.
Do not use standard R22 gauge sets.
WARNING
Refrigeration system under high pressure
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