| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | |
| | | 9 Fault Finding | | |
| | | |
| | | CM | | |
| | | | | | | | | | | | | | key | | | | bk | BLACK | | or | ORANGE | | | | | br | BROWN | | w | WHITE | | | | | bl | BLUE | | r | RED | | | | | P | PURPLE | | y | YELLOW | | | | | | | | | | | | | | |
| | | |
| | | key | | |
| | | |
| | | | | | | | | | | | bk | BLACK | or | ORANGE | | | | br | BROWN | w | WHITE | | | | b | BLUE | r | RED | | | | P | PURLPLE | y | YELLOW | | | | | | | | | | | |
| | | |
| | | |
| | | br | | br | | |
| | | Red Link must be fitted between SL and 9. | | |
| | | L | | |
| | | |
| | | |
| | | |
| | | or | | |
| | | RED LINK | | |
| | | 9 | | |
| | | |
| | | L | | |
| | | |
| | | |
| | | |
| | | RED
| | |
| | | SU—- | | |
| | | |
| | | L | | INK | | |
| | | |
| | | SL | | |
| | | |
| | | |
| | | 0 P | | |
| | | or | | |
| | | |
| | | or | | |
| | | SPARK ELECTRODE | | |
| | | |
| | | or | | |
| | | |
| | | br p FH pump I | | b | | |
| | | |
| | | |
| | | |
| | | |
| | | SPARK ELECTRODE | | |
| | | br | | |
| | | br | | |
| | | |
| | | |
| | | b | | |
| | | |
| | | |
| | | or | | |
| | | IS | | |
| | | |
| | | FIT | | |
| | | N | | |
| | | |
| | | |
| | | w | | |
| | | F1 | | |
| | | |
| | | |
| | | ■YELLOW LINK bl | | |
| | | O/H CUTOFF | | |
| | | FUSE TYPE F1 &F2| (F1A) | | |
| | | |
| | | |
| | | O/H CUTOFF | | |
| | | FUSE TYPE F1 & F2 (F1A) | | |
| | | b | | |
| | | |
| | | y | | |
| | | |
| | | |
| | | |
| | | y | | |
| | | |
| | | y | | |
| | | 000- | | |
| | | |
| | | |
| | | |
| | | 0 00- | | |
| | | CONTROL STAT bl | | |
| | | | | | |
| | | CONTROL STAT | | |
| | | |
| | | N | | |
| | -_i_0—b—[n}*. | |
| | | |
| | | |
| | | r | | |
| | | |
| | | r | | |
| | | |
| | | |
| | | |
| | | bk | | |
| | | 0- o | | |
| | | |
| | | bk | | |
| | | 0 0- | | |
| | | AIR PRESSURE SWITCH | | |
| | | b | | |
| | | |
| | | |
| | | AIR PRESSURE SWITCH | | |
| | | |
| | | y | | |
| | | |
| | | |
| | | y | | |
| | | |
| | | br | | |
| | | N | | |
| | | |
| | | br | | |
| | | |
| | | PILOT SOLENOID bk | | |
| | | |
| | | N | | |
| | | |
| | | |
| | | PILOT SOLENOID bk | | |
| | | N | | |
| | | |
| | | |
| | | N | | |
| | | MAIN SOLENOID | | | |
| | | |
| | | |
| | | MAIN SOLENOID | | |
| | | |
| | | N | | |
| | | |
| | | N | | |
| | | |
| | | |
| | | ic Yellow Link fitted to bridge out the overheat cutoff | | |
| | | it Remove red link between 9 and SL when fitting a time control etc (if no switch is fitted, link will make the circulation pump run constantly) | | |
| | | |
| | | PUMP WIRED INTO CENTRAL HEATING SYSTEM REMOTE CONTROLS | | |
| | | |
| | | |
| | | A AIR PRESSURE SWITCH CONNECTIONS
| | |
| | | A AIR PRESSURE SWITCH CONNECTIONS I I MAIN TERMINAL STRIP CONNECTIONS O CONTROL THERMOSTAT CONNECTIONS () PRINTED CIRCUIT BOARD CONNECTIONS gravity domestic hot water and | | |
| | | |
| | | i—I | | MAIN TERMINAL STRIP CONNECTIONS | | |
| | | |
| | | i_I | | |
| | | |
| | | |
| | | O CONTROL THERMOSTAT CONNECTIONS () PRINTED CIRCUIT BOARD CONNECTIONS | | |
| | | |
| | | fully pumped open vented or sealed water system | | |
| | | |
| | | fully pumped central heating | | |
| | | |
| | | Diagram 9.4 | | | Diagram 9.5 | | |
| | | |
| | | |
| | | 30 | | |
| | | 221656D | | |
| | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |