19
CG-SVX06F-GB
Installation
High pressure
The remote condenser must have a
service pressure equal to or higher
than the high service pressure.
Note: CCUN is only one component
of a complete installation. It includes
its own high pressure protection set
at 44.5 bar for R410A units.
Table 7 - 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
93
1”3/8
43
1”1/8
66
Standard
2
93
1”3/8
43
1”1/8
66
213
Standard
1
94
1”5/8
28
1”1/8
60
Standard
2
94
1”5/8
28
1”1/8
60
214
Standard
1
95
1”5/8
25
1”1/8
55
Standard
2
95
1”5/8
25
1”1/8
55
215
Standard
1
98
1”5/8
24
1”1/8
52
Standard
2
98
1”5/8
24
1”1/8
52
Figure 5 - Installing pressure relief valve (205-211)
1
2
1 = Connection for pressure relief valve circuit 1
2 = Connection for pressure relief valve circuit 2
Figure 6 - Installing pressure relief valve (212-215)
1
2
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 and shall be
installed on the low pressure side of
the refrigerant circuit.
The party in charge of the supply of
the condenser and of its refrigerant
piping is responsible of implementing
all the required protections to
comply with the PED requirements
for the design pressure of the
condenser installed.
Please refer to the document PROD-
SVX01_-xx delivered with this
chiller to check all the mandatory
conformity requirements of the
Pressure Equipment and Machinery
directives for this installation.
