Setpoint
spring
range
("W.C)
Color
Nominal width Rp/DN
Rp 1 1/2,
DN40
Rp 2, DN
50
Rp 2 1/2,
DN65, 80
DN 100
DN 125
DN 150
Spring 1
1.0–3.6
brown
229 851 229 874 229 883 229 892 229 901 229 909
Spring 2
2.0–5.2
white
229 852 229 875 229 884 229 893 229 902 229 910
Spring 3
2.0–8.0
orange
229 853 229 876 229 885 229 894 229 903 229 911
Spring 4
4.0–12.1
blue
229 854 229 877 229 886 229 895 229 904 229 912
Spring 5
10.0–22.1
red
229 869 229 878 229 887 229 896 229 905 229 913
Spring 6
12.1–28.1
yellow
229 870 229 879 229 888 229 897 229 906 229 914
Spring 7
24.1–44.2
black
229 871 229 880 229 889 229 898 229 907 229 915
Spring 8
40.2–60.3
pink
229 872 229 881 229 890 229 899 229 908 229 916
Spring 9
56.3–80.4
grey
229 873 229 882 229 891 229 900 243 416 243 417
4.8 Measuring gas pressure
General rules for gas pressure measurement
1. Shut off the burner.
2. Loosen the test point screw.
3. Attach a silicone hose to the test point connection. Attach a gauge to the other end
of the hose.
4. Start the burner.
5. While the burner is running record gas pressure readings using the instructions
below.
6. Perform adjustments if needed.
7. Shut off the burner.
8. Finally close all the test point connections and remove measurement equipment.
Make all adjustments when the burner is running!
All stated pressure values are only for reference. The actual values may
vary depending on operating conditions.
44 (114)
M4248 2316EN
