HAMWORTHY HEATING LTD
20
PUREWELL
Vari
Heat c
500001169/T
7.5
Refer to
section 8.0 - Controls Operation
, to set the relevant boiler parameters and timings specific to
the installation.
7.6 User’s Instructions
The boiler owner or their representative should be made aware of the lighting and operating instructions.
A practical demonstration should be given describing each functional step. This Installer's Guide and User’s In-
structions should then be handed over & kept in a safe place for easy reference.
Figure 7.4.5 - Burner pressure test point
Burner pressure test point
7.7 Burner Resistance Check
The burner pressure can be measured via a test point located on the gas inlet manifold as shown in figure 7.4.5.
Typical burner pressures measured for a new, clean burner are listed in the table below.
Model
Typical
Burner
Pressure
‐
Clean
burner
Low Gas Pressure
Switch Set Point mbar
low
fi
re
High
Fire
70c
0.34
mbar
1.39
mbar
10.6
95c
0.46
mbar
1.94
mbar
11
110c
0.54
mbar
2.46
mbar
10.2
140c
0.87
mbar
5.73
mbar
9.3
180c
7.5
‐
8.5
mbar
Содержание Purewell VariHeat 110c
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Страница 33: ...HAMWORTHY HEATING LTD 27 PUREWELL VariHeat c 500001169 T Figure 8 2 1 3 Operation and display philosophy...
Страница 43: ...HAMWORTHY HEATING LTD 37 PUREWELL VariHeat c 500001169 T Figure 8 3 11 Operating phases...
Страница 44: ...HAMWORTHY HEATING LTD 38 PUREWELL VariHeat c 500001169 T Figure 9 0 Boiler Wiring Schematic...
Страница 65: ...HAMWORTHY HEATING LTD 59 PUREWELL VariHeat c 500001169 T Figure E1 2 Typical Piping Layouts...
Страница 70: ...HAMWORTHY HEATING LTD 64 PUREWELL VariHeat c 500001169 T NOTES...
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