On-Roof Mounting; Collector Position And Field Arrangement - Vaillant auroTHERM VFK 125 Installation Manual

5 Flat roof installation

6 On-roof mounting

4
3
Fig. 5.15 Mounting the hydraulic connections (6 or more collectors)
6 On-roof mounting
With on-roof mounting, flat collectors are fastened to
horizontal mounting rails quickly and reliably with at-
tachment clips. To ensure a good adaptation to the dif-
ferent roofings, three different roof anchors are availa-
ble:
— Type P for standard tiles and bricks (e.g. pantile),
— Type S for flat shingles and tiles (e.g. beaver tail,
slate) and extremely high protruding tiles (e.g. Medi-
terranean clay tiles)
— Stair bolt mounting kit for universal fixing (e.g. corru-
gated slabs, sheet with trapezoidal corrugations, shin-
gles).
6.1

Collector position and field arrangement

Vaillant flat collectors are available in different versions:
one for horizontal position, one for vertical position.
Besides, they can be arranged in the collector field side
by side and on top of each other.
Generally, the installation steps and the instructions
described in this manual are valid for both collector
positions and field arrangements.
Any different installation steps are clearly pointed out:
w
With horizontal collector position
s
With vertical collector position
n
With fields arranged side by side
u
With fields arranged on top of each other
16
1
2
Note
h
If you connect 6 or more collectors
one after another, the hydraulic con-
nections must be arranged diagonal-
ly, to force a complete flow.
• Insert the return (inlet) (2) into the lower
side opening on one side and, diagonally
across it, the supply (outlet with opening
for collector sensor) (4) into the upper side
opening.
• Remove the red plug and plug the collector
sensor into the opening.
• Use a cable tie to prevent the collector
sensor from slipping out.
• Mount the plug without vent (3) in the
lower part of the collector.
• Mount the plug with vent (1) in the highest
position.
• 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.
Installation manual auroTHERM 0020057143_04