18
Fig. 18. Honeywell ‘S’ Plan.
NOTE: When using a WHS programmer set the switch on the rear of the programmer to ‘P’.
Remove link 1 to 3 and link 2 to 4 and make link 3 to 4
Room thermostat Heating Valve. Honeywell V4043H
Burner Socket
Optional
Worcester
Programmer
Hot Water Valve
Honeywell V4043H
L
N
E
Pump
N
EN
L
Fig. 19. Honeywell ‘Y’ Plan.
NOTE: When using a WHS programmer remove the orange wire from terminal 9 and connect to terminal 6. Set the switch on the
rear of the programmer to ‘P’. Remove link 1 to 3 and link 2 to 4 and make link 3 to 5.
Room thermostat
Pump
N
EN
L