①熱交換器凍結について、4ブロックの内2ブロックだけ凍結したのは何故か

①熱交換器凍結について、4ブロックの内2ブロックだけ凍結したのは何故か（室外機4台運転中）
何故全面でないのか

②空調機設計上の膨張弁の設定はどうなっているか。圧力・流量など（ＲＤ３５０、ＲＤ４００）

③コンプレッサー4台に対し、室内機吸込み部のサーモは1つであるが、運転設定はどうなっているか

④凍結状況としては、膨張弁2次側分配管・熱交換器・熱交換器後のサクション管までが凍結、霜付き
になっています。考えられる原因全てを列記してからの消し込み（現状熱交換器汚れとしか回答がない）

⑤熱交換器凍結、過冷却によりガス圧が下がり最終的に低圧カットのシステムになっていますが、凍結した
場合に漏水するのであれば、凍結する前に停止する保護が必要です。方策はありませんか。

結果 (英語) 1:

(1) for Frost froze just 2 block 4 block why or (outdoor unit 4 while driving) Why not all?(2) air cleaner design on expansion valve setting?. Pressure, flow, etc. (RD350, RD400)(3) for compressor 4 Thermo-Interior cleaner suction is one that is driving?(4) swell as the freezing conditions valve secondary side distribution duct and until the suction tube for heat exchanger and heat exchange equipment after freezing, Frost Has become. To list all possible causes from the eraser included (only current heat exchange with dirt and no answers)(5) gas pressure is falling into the final system of low pressure cut by heat exchange with freezing and supercooling, freeze Before freezing if leaking when in the stop protection is required. There is no strategy?

結果 (英語) 2:

About ① heat exchanger freezing, 4 for some reason (in outdoor unit four operation) was frozen only two blocks of the block
Why do not the whole area if they happened to the setting of the expansion valve on the ② air conditioner design. Pressure and flow rate, etc. (RD350, RD400) for ③ compressor four, but the thermo of the indoor unit suction unit is one, or is happening driver settings as ④ frozen situation, primary distribution pipe and expansion valve 2 until the suction pipe after the heat exchanger and heat exchanger is frozen, with frost and has become. Possible causes included poppy from listed all (there is no answer only the status quo heat exchanger dirt) ⑤ heat exchanger freeze, but has become final of low pressure cut system lowers the gas pressure due to excessive cooling, and frozen If you want to water leakage in the case, it is necessary protection to stop before freezing. Do not have a strategy.

結果 (英語) 3:

On the
① heat exchanger freezing, frozen block 4 only 2 blocks not including the reason why the whole table during the operation of the outdoor machine of the air conditioner of the expansion valve set on

② design? The pressure and flow rate (RD 350, 400, RD ）

③ compressor operation table 4 in the setting of indoor machine inlet thermometer is one of the

④ freezing conditions and what became of the suction pipe to the secondary side of the expansion valve and the distributing pipe heat exchanger and heat exchanger with frost, freezing atIn. All causes are considered to be erased from the heat exchanger for (and not only answer ）

⑤ freezing and supercooling heat exchanger by the gas pressure in the final cut down to low pressure system, which is frozen at the case of leakage, if freeze protection before stopping. Do you have a strategy. At