1-12-1-1-1
1
PRECAUTION FOR USING R32 REFRIGERANT
• The basic installation work procedures are the same as conventional refrigerant (R410A, R22)
models.
However, pay careful attention to the following points:
WARNING
Since the working pressure is higher than that of refrigerant R22 models, some of the piping and
installation and service tools are special.
Models that use refrigerant R32 and R410A have a different charging port thread diameter to prevent
erroneous charging with refrigerant R22 and for safety.
Therefore, check beforehand.
Be more careful than R22 so that foreign matter (oil, water, etc.) does not enter the piping.
Also, when storing the piping, securely seal the opening by pinching, taping, etc. (Handling of R32 is
similar to R410A.)
CAUTION
1. Installation (Space)
• That the installation of pipe-work shall be kept to a minimum.
• Must ensure that pipe-work shall be protected from physical damage.
• That compliance with national gas regulations shall be observed.
• Must ensure mechanical connections be accessible for maintenance purposes.
• In cases that require mechanical ventilation, ventilation openings shall be kept clear of obstruction.
• When disposal of the product, do follow to the precautions in “12. Recovery” on page 1-12-1-1-6 and
comply with national regulations.Always contact to local municipal offices for proper handling.
2. Servicing
2-1. Service personnel
• Any qualifi ed person who is involved with working on or breaking into a refrigerant circuit should hold
a current valid certifi cate from an industry-accredited assessment authority, which authorizes their
competence to handle refrigerants safely in accordance with an industry recognised assessment
specifi cation.
1. U-200PZH2E8, U-250PZH2E8
1-12. Installation Instructions
■ Outdoor Unit
SM830276-00_欧州向け R32シングル TD＆SM.indb 1 2019/02/27 11:54:24
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