SERVICE MANUAL TANGO KW (short version) ENGLISH
Autori: Serralunga M.
16/07/2020
3
NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
1.
AMOUNT OF REFRIGERANT IN THE EQUIPMENT
The most prominent feature of the TANGO KW versions is that they use a natural gas: propane (R290).
MODEL
AMOUNT OF
PROPANE*
[grams]
TANGO 125 KW
150
TANGO 188 KW
150
TANGO 250 KW
300
(*) The propane refrigerant R290 to be used must be technical-gas rated, with purity grade above 99,5%.
PROPANE IS HEAVIER THAN AIR, WHICH MEANS THAT IT WILL
TEND TO CONCENTRATE NEAR THE FLOOR OF THE ROOM.
The flammability limit percentage (in a volume of air) is between 2,2% and 9,2% (at 25°C and 1bar).
In mass terms:
If the entire amount of refrigerant is released in the chest of a TANGO KW, this would be a flammability
zone event.
39g/m
3
177g/m
3
Striking will not cause
flames
Striking will not cause
flames
0%
Striking will not cause
flames
100%
