STEP1(R410A)のSF2が0.6Lを使えてるのに、STEP2(

STEP1(R410A)のSF2が0.6Lを使えてるのに、STEP2(R32)で１L強必要になる理由は以下です。

①密度差の影響（若干）

②室内機のラインアップが増えた影響（若干）

③R32の特性による影響（大部分）

･･･従来、初期充填冷媒量は標準配管長7.5mでの性能確保で決定していると思いますが、

R32は冷媒特性上、吐出管温度が上がりやすいため、

現地配管長7.5ｍを超えたときにアキュームが空になると、

すぐに吐出管垂下が働き、極端に能力が落ちる恐れがあります。

長配管で吐出管温度垂下によって、どの程度能力が落ちるか見極めたうえで、

初期冷媒量を7.5mでの決定量＋α[kg]とする必要があると考えていますが、

α[kg]は最大で7.5m～30mの差分が必要で0.5kg程度になります。

ผลลัพธ์ (อังกฤษ) 1:

I used 0.6 L (R410A) STEP1 SF2, in step 2 (R32) 1 L strong the reason is as follows.(1) influence of density difference (slightly)(2) indoor unit line-up increased effect (slightly)(3) the effect of characteristics of R32 (majority)And the initial filling of refrigerant vapor is standard length but that are determined by the stable at 7.5 mR32 refrigerant on the outlet for easy to raise the manifold temperatureThe accumulation becomes empty exceeds the local pipe length: 7.5 mImmediately discharge may fall to extreme capacity working tube pendent.Long piping discharge tube temperature droop depending how qualified, or capable of falling in theWe need the initial amount of refrigerant to the decision amount + α in 7.5 m [kg]Α [kg] is up 7.5 m-30 m differential is necessary, will be about 0.5 kg.

ผลลัพธ์ (อังกฤษ) 2:

STEP1 to SF2 of the (R410A) is use the 0.6L, reason to be 1L strong need in the STEP2 (R32) is the following. ① the influence of the density difference (slightly) ② impact line-up has increased of the indoor unit (slightly) impact due to the characteristics of ③R32 (majority) ... conventional, initial filling amount of refrigerant in the performance securing a standard pipe length 7.5m but I think that it is determined, R32 on the refrigerant properties, in order to discharge pipe temperature is likely to rise, and the accumulator is empty when you have exceeded the local piping length 7.5m, work is immediately discharge pipe droop, extremely ability There is a possibility that the fall. By the discharge pipe temperature droop in the long piping, after assessing how much capacity is fall, determined amount of 7.5m the initial refrigerant amount + α but we believe it is necessary to make the [Kg], alpha [Kg] is you will need about 0.5kg is a difference of 7.5m ~ 30m at the maximum.

ผลลัพธ์ (อังกฤษ) 3:

STEP R 410 A 1 of 2 SF L use 0.6, STEP 2 (32) is less than 1 R L reason must be strong.
The influence of the density difference (some)
Effect of growing lineup of the indoor unit (some)
Effect on the properties of R 32 (mostly)
Striking the initial filling amount of the refrigerant is ensured in the performance of the standard 7.5 pipe length, and M
The refrigerant R characteristics, in order to raise the temperature of the discharge tube
When the pipe length at the local 7.5 m becomes empty, and
Function extending downward from the discharge pipe, there is a danger of falling in the extreme.
Long pipe discharge pipe by the temperature dropped, fall down, how ability
But there is a need of the initial amount of refrigerant amount determination and 7.5 m +. Alpha., kg
The. Alpha kg difference to 30 m in need of 7.5 maximum 0.5 kg.