Installation
CG-SVX06D-E432
High pressure
The remote condenser must have a
service pressure equal to or higher
than the high service pressure (44.5
bar for CCUN 205-211 and 29.5 bar
for CCUN 212-215.)
Warning! CCUN 205-211 have a
high pressure sensor which is not
adjustable up to 44.5 bar. CCUN
212-215 have a high pressure
sensor which is not adjustable up to
29.5 bar.
Table 16 - Recommended liquid line diameters with pressure relief valve - CCUN
Unit size Unit efficiency model Circuit
Maximum system refrigerant
charge without pressure relief
valve (kg)
Liquid line
diameter
Maximum length
without pressure relief
valve (m)
Liquid line
diameter
Maximum length
without pressure relief
valve (m)
205
Standard 1 & 2 62 1"1/8 76 7/8" 120
High 1 & 2 69 1"1/8 90 7/8" 142
206
Standard 1 & 2 63 1"1/8 71 7/8" 113
High 1 & 2 69 1"1/8 83 7/8" 131
207
Standard 1 & 2 65 1"1/8 69 7/8" 108
High 1 & 2 70 1"1/8 79 7/8" 125
208 Standard 1 & 2 71 1"1/8 73 7/8" 115
209 Standard 1 & 2 74 1"1/8 74 7/8" 116
210 Standard 1 & 2 76 1"3/8 45 1"1/8 70
211 Standard 1 & 2 79 1"3/8 44 1"1/8 69
212
Standard 1 109 1"3/8 76 1" 5/8 54
Standard 2 77 1"3/8 43 1" 5/8 30
213
Standard 1 109 1"3/8 76 1" 5/8 54
Standard 2 109 1"3/8 76 1" 5/8 54
214
Standard 1 103 1"3/8 69 1" 5/8 49
Standard 2 111 1"3/8 74 1" 5/8 53
215
Standard 1 106 1"3/8 67 1" 5/8 48
Standard 2 106 1"3/8 67 1" 5/8 48
Figure 17 - Installing pressure relief valve (205-211)
1 = Connection for pressure relief valve circuit 1
2 = Connection for pressure relief valve circuit 2
Figure 18 - Installing pressure relief valve (212-215)
1 = Connection for pressure relief valve circuit 1
2 = Connection for pressure relief valve circuit 2
Pressure relief valve - CCUN
Above the maximum system
refrigerant charge, it is
recommended to install a pressure
relief valve. See figures below for
installation. Depending upon the
liquid line diameter selected in the
"Recommended liquid line
diameters" table, find the predicted
maximum liquid line length of
installation without pressure relief
valve installed. The recommended
pressure relief valve setting is 29 bar
for CCUN 205-211 and 21 bar for
CCUN 212-215 and shall be installed
on the low pressure side of the
refrigerant circuit.