New Refrigerant R410A Cannot Be Used For Earlier Models - Argo CAFM1V Series Installation Instructions Manual

04-408 InveterW_Techn_a-p50
3-2. Use R410A exclusive cylinder only.
New refrigerant R410A cannot be used
for earlier models.
1. Compressor specifications are different.
If recharging a R22 or R407C compressor with
R410A, durability will significantly decrease since
some of the materials used for compressor parts are
different.
2. Existing tubing cannot be used (especially R22).
Completely cleaning out residual refrigerating
machine oil is impossible, even by flushing.
3. Refrigerating machine oil differs (R22).
Since R22 refrigerating machine oil is mineral oil, it
does not dissolve in R410A. Therefore, refrigerating
machine oil discharged from the compressor can
cause compressor damage.
R22 refrigerating machine oil
R407C refrigerating machine oil
R410A refrigerating machine oil
12/16/04 3:12 PM Page 5
Single-outlet valve
(with siphon tube)
Liquid refrigerant should be recharged
with the cylinder standing on end as
shown.
Mineral oil (Suniso oil)
Synthetic fluid (ether oil)
Synthetic fluid (ether oil)
5
Valve
Liquid
R410A