Installer’s Guide – (Gas Post-Boost) Solar Water Heater
25
H4110 4110 Rev. F
• Close the hot water outlet, then
repeat the above sequence to
confirm the setting.
• Close the hot water outlet.
Setting the High Burner rate
Step 30
Setting the High Burner Rate
• Set the Lower Dip Switch Block
(2) for maximum output setting as
shown right.
• Open a hot water outlet fully in order
to start combustion.
• Slowly rotate the maximum gas
control volume screw (4) clockwise or
anti-clockwise until the correct high
rate test point pressure is achieved.
• Close the hot water outlet, then
repeat the above sequence to
confirm the setting.
• Close the hot water outlet.
• Return the Lower Dip Switch Block
(2) to the OFF position as shown
right.
• Disconnect the manometer from the
test point and replace the blanking
screw.
• Replace the front cover.
Installer’s Guide
Tick
Task
See Step No.
Installer’s Guide read
1
Safety audit conducted
2
Existing tank removed
3
Tank positioned on a level fireproof base in accordance with all
plumbing and building regulations
4
Cold and hot water pipes connected
5 – 6
Collectors aligned and attached to roof
7 – 11
Fittings attached to collectors
12 – 16
4 Way Union Assembly fitted
17
Anti Frost Valve fitted
18
Roof penetration sealed with a flexible waterproof flashing
19
Temperature sensor installed
20 – 21
Heat Trap/Non Return Valve fitted
22
PTR valve fitted
23
Gas connected
24
GPO installed
25
Tempering valve fitted
26
Testing the gas
27
Adjusting Burner Test Point Pressure
28
Setting the Low Burner Rate
29
Setting the High Burner Rate
30
Commissioning Checklist
