User Manual
23
Installing the ½” copper to and from the collector using
the compression fittings.
1. Push the union nut and
the cutting ring onto the
copper pipe . The pipe
must protrude at least 3/8”
(3 mm) from the cutting ring
in order to ensure the force
transmission and the sealing.
2. Insert the support sleeve into
the copper pipe.
3. Insert the copper pipe with the
plugged-on individual parts (,
and ) all the way into the
housing of the compression
fitting .
4. First screw the union nut
manually.
5. Tighten the union nut by
rotating one full turn. Hold the
housing of the compression
fitting to avoid rotation in order
to avoid damaging the sealing
ring.
Figure 24.
PLUMBING CONFIGURATION
1 2
3 4
1. ½” copper tube - from
the collector outlet
(top) to the collector
return compression
fitting.
2. ½” copper tube –
from the collector
inlet (bottom) to
the collector supply
compression fitting.
3. ¾” copper tube –
from the upper tank
inlet marked “from
collector” to the tank
supply threaded fitting.
4. ¾” copper tube – from
the lower tank outlet
marked “to pump”
to the tank return
threaded fitting.
Figure 25.
FUNCTION
Check valves
The solar station is equipped with check valves in the supply
and the return ball valve (J, Q).
For filling, venting and flushing of the installation the check
valves must be turned to the correct position. To set the
proper position for the check valves take off the temperature
gauges (C, E), remove the top cover (D) and turn the ball
valves into the proper position using a wrench. See Figure
26. In the 45° position the balls in the ball valves push the
check valves open.
During operation the ball valves must be in 0° position.
0° 45° 90°
Check valve is
operating, flow
only in flow
direction
Check valve is not
operating, flow in
both directions.
Ball valve
closed,
no flow.
Figure 26.
FLOWMETER
The flowmeter serves to measure and display flow volume
of the system in a range of 0.5-5.0 US gpm.
In order to guarantee the flawless function of the measuring
device the installation must be flushed and free from foreign
substances.
The flowmeter must be mounted vertically.
LEFT SCALE:
0.5 - 3.5 GAL/MIN
READING EDGE =
TOP EDGE OF THE
TURBINE
EXAMPLE:
ABOUT 2 GAL/MIN
RIGHT SCALE:
4 - 5 GAL/MIN
READING EDGE =
BOTTOM EDGE OF
THE TURBINE
Figure 27.