3.7.7
Filling The System
The system should be filled using a G24 approved filling loop. The system
pressure should be set to between 1.0 and 2.0 bar. To display the system water
pressure press the “Installer” button, on the boiler fascia, repeatedly until the
number 5 appears on the display. After a few seconds the display will change to
show the water pressure, in bars. Using the filling loop set the pressure to 1.0 to
2.0 bar,
WD500
Chapter 3 - Boiler Location
The Keston Q37 & Q37P Boilers
Installation & Servicing Instructions
Page : 17
Diagram 3.7.6 Available Pump Head Graph
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
50.00
lit/min
m
H
2
O
By-pass
Open 28mm
Permanently
FLOW
RETURN
Cock
Drain
Vessel
Expansion
KESTON
HEATING CIRCUIT
Q37
(if required)
Pump
Additional System
Valve
Safety
Figure 3.7.6 Additional System Pump
