Operating instructions

After 45 seconds the second stage solenoid 12b fig. 7 opens to
allow the full gas rate.
If a flame is not detected, after 8 seconds, the security solenoid
closes and shuts off the gas.
The red lockout indicator bulb 9 24 fig. 6 will light.
The central heating flow temperature is controlled by the central
heating control thermistor 16 fig. 7.
The boiler has been designed to minimise cycling and will not
attempt to relight for at least 3 minutes after the boiler
thermostat has been satisfied (this <tTAC delay,, can be set to
30 seconds if required. See Maintenance and Service Guide).
When the room thermostat is satisfied the burner will switch off
and the pump will remain running for a further 3 minutes.
NB
It is possible to override the TAC delay by pressing the RESET
button (25 fig. 6).