Glow-worm Clearly Hybrid - Back-up Module System - Manual (Page 29)

0020096317_01 - 08/10 - Glow-worm
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INSTALLATION
12.8.3 Heating circuit adjustment
2
3
1
4
Key
1 Speed control
2 Speed II (factory setting)
3 Speed I
4 by-pass screw
• Turn the control (1) to select pump speed I or I, in
accordance with the flow / pressure curve below.
• Depending on the design of the system the by-pass may
need further adjustment. It is adjusted clockwise to close and
anti-clockwise to open. This should be balanced to ensure
that it operates if the pump output is adjusted.
Hydraulic module pump flow / pressure curve
60
50
40
30
20
10
0 200 400 1000 800 600 1200 1400
B
2 1 4 3
Key
1 Speed 2, bypass closed
2 Speed 2, bypass opened
3 Speed 1, bypass closed
4 Speed 1, bypass opened
A Available pressure (kPa)
b flow within the circuit (l/h)
12.8.4 Venting the HP circuit
The venting of the HP circuit allows you to purge any air in the
HP circuit.
Ø14
A
B
1
3
4
1
2
Key
1 Air trap
2 Ø 14 mm flat wrench (*)
3 Hose
4 Container (*)
(*) Not included
• Connect one end of the hose (3) to the trap (1).
• Insert the other end of the hose (3) into the container (4) in
order to recover any residual glycol during the venting of the
circuit.
• Using the buttons ,
select Vent HP circuit on the screen.
• Press the button to confirm.
• Confirm with the button in
order to begin the venting process.
You can start the heating circuit bleed at
the same time.