Installation
SiE33-003
34
General Information
3.2.7
Additional Charge of Refrigerant
Operational steps
Important points
1. The results of all calculations must be recorded. (Make a list.)
2. The refrigerant will need to be additionally charged whenever the distance between the outdoor unit
and the most distant indoor unit is more than 10m.
3. The additional charging operation should be carried out by input of liquid into the liquid pipes from a
charging cylinder following completion of the vacuum drying operation.
4. When the additional charging operation cannot be satisfactorily completed use the action of the
compressor to complete the additional charging during the test run.
Refrigerant
Charging
Instructions
HFC407C are non-azeotropic* refrigerants. Therefore, these refrigerants must be charged in the liquid
state. When charging the refrigerant into equipment from the cylinder, turn the refrigerant cylinder upside
down.
Important: Make sure that the refrigerant (liquid) is taken out from the bottom part of the cooling cylinder.
Do not take out the refrigerant (gas) at the upper part of the cooling cylinder for charging.
Caution
Since some cooling cylinders differ in the internal mehanism, it is necessary to examine the cylinder
carefully. (Some cylinders have a siphon tube to eliminate the need for turning it upside down.)
Siphon tube
Use the length of the piping to
calculate the amount of
refrigerant required
Additional charge of
refrigerant
(V0995)
Si33-003.book Page 34 Monday, June 25, 2001 9:06 AM
Все каталоги и инструкции здесь:
http
:
//splitoff.ru/tehn-doc.html