Friedrich SS15N30* ユーザーズマニュアル

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 3.  Install a process tube to sealed system. 

4.  Make necessary repairs to system. 

 

5.  Evacuate system to 200 microns or less.  

 

6.  Weigh in refrigerant with the property quantity of R-410A 

     refrigerant. 

 

7.  Start unit, and verify performance. 

8.  Crimp the process tube and solder the end shut.  

Proper safety procedures must be followed, 

and proper protective clothing must be worn 

when working with a torch.

Failure to follow these procedures could 

result in moderate or serious injury.

Proper safety procedures must be followed, 

and proper protective clothing must be worn 

when working with liquid refrigerant.

Failure to follow these procedures could 

result in minor to moderate injury.

Proper safety procedures must be followed, 

and proper protective clothing must be worn 

when working with a torch.

Failure to follow these procedures could 

result in moderate or serious injury.

The acceptable method for charging the sealed system is the  

Weighed in Charge Method. The weighed in charge method  is 

applicable to all units. It is the preferred method to use, as  it is 

the most accurate. 

The  weighed  in  method  should  always  be  used  whenever  

a  charge  is  removed  from  a  unit  such  as  for  a  leak  repair, 

compressor  replacement,  or  when  there  is  no  refrigerant  

charge left in the unit. To charge by this method, requires the 

following steps:
1. Install a piercing valve to remove refrigerant from the 

sealedsystem. (Piercing valve must be removed from  the 

system before recharging.) 

2.  Recover Refrigerant in accordance with EPA regulations.