Ferroli SYS 10-23, Инструкция по установке, обслуживанию и эксплуатации

Страница: 27 / 36

27
SYS 10-23
Spark
A
Flame detect
Spark or flame detect electrode (fig. 24)
• Isolate gas and electricity supply
• Remove outer case (two screws bottom rear corners)
• Open room sealed compartment and combustion chamber
• Identify electrode from fig. 24
• Unplug electrical connection "A" from sensing electrode
• Remove fixing screw and remove flame detect electrode
• Remove the two fixing screw from spark electrode plate and remove it.
Fig. 24
Pump
Replacement of pump head
• Isolate electricity and flow and return pipes
• Remove casing (two screws bottom rear corners).
• Remove the two securing screws and lower control panel
• Release pressure from boiler via pressure relief valve
• Unplug the pump lead from the pump head
• Place a piece of cloth or other absorbent material over the rear of the control panel to catch any
drops of water that may fall when the pump head is removed.
• Using a 4mm allen wrench undo the four allen screws in the pump head, lift away pump head
from the pump body
• fit new head into pump body and secure with the allen screws tightening evenly.
• Replace electrical connection.
Removal of heat exchanger
• Isolate gas, water and electricity supplies
• Remove casing (2 screws bottom corners)
• Remove the two securing screws and lower control panel
• Drain heat exchanger for both CH + DHW
• Remove sealed compartment front panel
• Disconnect the overheat thermostat and central heating limit thermostat
• Remove the main burner, fan, flue hood and flow meter as described previously
• Remove the pump to heat exchanger flow connection and locknut
• Undo the domestic water outlet connection and locknut
• Lift out heat exchanger
• Re-assemble in reverse order