Giersch GG20-LN, Technical Information And Installation Instructions

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7
E
.0
4.
99
•
G
. 0
9.
05
.1
2
12. Connect to power supply
• De-energise the system. Move the master switch into the "OFF" position.
• Check the polarity of all connecting plugs.
• Wire the plug as shown in the terminal diagram. Lay the flexible control line so that the boiler door
remains swivellable.
• Attach cube connector connected to the gas pressure monitor connector A (grey) and to solenoid
valves B1 (black), and secure with screw.
• Connect the 4-pin plug of the power controller (X31) to the black-green socket on the burner (X32).
• If plugs X11 and X31 are wired as shown the terminal diagram, check that the pins are correctly
assigned.
• Connect the 7-pin plug of the boiler controller (X11) to the black-brown socket on the burner (X12).
• The power cord of the 7-pin connecting plug X11 must be fused with a slow-acting fuse rated for min.
6.3 A or a quick-acting fuse rated for max. 10 A.
Connection diagram:
T8
T7
T6
B5
Buchsenteil X32, X12
am Brenner Steckerteil X31,X11
zum Kessel
X31 X32
zu
auf
Anschluss für GG20-M-L-LN
Y9
T8
T7
T6
B5
Buchsenteil X32, X12
am Brenner Steckerteil X31,X11
zum Kessel
X32
N
F22
P12
X31
Anschluss für GG 20-Z-L-LN
H12
B4
S3
T2
T1
N
PE
L1
N
PE
L1
N
N
F1
F3
F21
H11
P11
H13
Q1
X11
X12
Buchsenteil X32,X12
am Brenner
Steckerteil X31,X11
zum Kessel
male adapter X31, X11
to boiler female adapter X32, X12
on burner
male adapter X31, X11
to boiler female adapter X32, X12
on burner
male adapter X31, X11
to boiler female adapter X32, X12
on burner
Connection for GG20-Z-L-LN
Connection for GG20-M-L-LN
Legend:
F1
External fuse
F21, F22 Ext. temp. controller, 1st/2nd stages
F3 Ext. safety thermal cutout
F51 Gas pressure monitor
Q1 Main heating switch
H11, H12 Ext. pilot lamp
H13 Ext. fault signal lamp
L1 Phase
PE Protective earth
P11, P12 Time meter
Y1, Y2 Solenoid valve
Y3 Safety solenoid valve
Y9 Ext. controller
N Neutral conductor
Installation