Chappee NXR3 Installation And Maintenance Manual page 19

5. W
iring diagrams
5 . 1 "STANDARD" block wiring diagrams
Fig. 23
Black wire : L phase
Blue wire : Neutral N
Green/yellow wire : Earth
Wire shown as dotted line to be wired by
installer
pink
blue
Fig. 24
Burner
brown
Boiler
terminal
yellow
F1 6.3 AT control fuse
TR1 1 output Control Thermostat
st
TR2 2 output Control Thermostat
nd
TS Safety Thermostat
VMT On indicator
VSC Boiler Safety indicator
ZB Burner Switch
ZT Safety Test Button
RAG Inverter relay for RAG2 output burner (option)
CRT Time delay relay card for recycling pump
(option)
Terminal studs
230V 50 Hz
supply
1st output
Wires to be
taken back if
RAG relay
19
Burner cables
Wires to be taken back if
RAG relay
2nd output
Jacket
Panel
Swivel
face
Réf. : CI - 405 - A