Dimensions and pipe
connections
19
28
43
1788
691
725
791
900
734
756
66
85
382
760
296
154
73
61
57
660
381
290
648
25-50
19
28
43
1788
691
725
791
900
734
756
66
85
382
760
296
154
73
61
57
660
381
290
648
25-50
Pipe connections
G25 intXL1 Connection, heating medium supply line
G25 intXL2 Connection, heating medium return line
G25 intXL3 Connection, cold water
G25 ext.XL4 Connection, hot water
G25 intXL8 Connection, docking from heat pump
G25 intXL9 Connection, docking to heat pump
G25 intXL30 Connection, expansion vessel
17Chapter 4 | Pipe connectionsNIBE VVM 500