Specifications

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
conrm the setting.
• Close the hot water outlet.


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
conrm 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