Vaillant auroTHERM VFK 145 H/V Installation Manual page 17

4 Installation
1
a
2
Fig. 4.18 Hydraulic connection
3
Fig. 4.19 Hydraulic connections
Fig. 4.20 Fixing the lower side sections
16
4
1
u
With fields arranged on top of each
other
• Connect the collectors with the O-ring pipe
coupling.
• Fix the connection with the clamps.
Caution!
a
Danger of damage to the collector as
a result of incorrect assembly!
Make sure that the clamps (1) slide
into the slot on the O-Ring pipe cou-
pler (2).
u
With fields arranged on top of each
1
other
• Connect the supply (outlet with opening
for collector sensor) (1) on top.
• Insert the collector sensor into the corre-
sponding opening in the supply.
• Connect the return (inlet) (2) at the bot-
2
tom.
• Mount the plug without valve (3) in the
lower part of both collectors.
• Mount the plug with bleeding valve (4) on
top of both collectors.
• Fix connections and plugs with the clamps.
• Connect the collector supply and return to
the system with the connection pipes.
• If necessary check the connections for
leaks.
u
With fields arranged on top of each
other
• Slide the longer side sections (from exten-
sion kit, Article No. 0020059911) laterally
over the lower collector.
• Make sure that the side section is on the
collector frame and that it is locked.
• Fix the longer side sections to the roof bat-
tens with the supplied brackets (1) and
No. 2 screws using the supplied Torx bit.
Installation manual auroTHERM 0020057148_03