Viessmann Vitoclima 300-S Service Instructions For Contractors page 8

Commissioning, inspection, maintenance
Further details regarding the individual steps
A Vacuum pump
B Filling hose for connecting the
pressure gauge set and the
vacuum pump
C Pressure gauge set
D Filling hose for service valve (one
hose end with valve)
E External unit
Evacuate the system at the service valves of the external unit.
Evacuate the internal devices
8
F Internal device A
G Internal device B
H Liquid line
K Suction line
L Liquid line
M Suction line
N Service valve with protective cap
O Three-way valve
and in sequence.
(cont.)