Glow-worm Ultracom sxi - Manual (Page 57)

57
15 Replacement of Parts
15.20 Low Water Pressure Sensor
For access, refer to section 15.1.
Drain the boiler heating circuit as described in the appropriate
section of 15.1.
Refer to diagram 15.15.
Disconnect the electrical leads.
Remove the retaining clip, remove the low water pressure
sensor.
Fit new ‘O’ ring.
Fit the new low water pressure sensor.
Refill vent and pressurise the boiler.
15.21 Automatic Bypass and Housing
For access, refer to section 15.1.
Drain the boiler heating circuit as described in the appropriate
section of 15.1.
Refer to diagram 15.16.
Remove the retaining clip to remove the automatic bypass.
Remove the retaining clips and three securing screws to
remove the automatic bypass housing. Fit new ‘O’ rings
before replacing the assembly.
Refill, vent and pressurise the boiler.
RETAINING
CLIP
LOW WATER
PRESSURE
SENSOR
ELECTRICAL
LEADS
LH
HYDROBLOCK Diagram 15.15
13532
13854
Diagram 15.16
13526
PUMP
HEAD
CABLE
COVER
AUTOMATIC
AIR VENT
RETAINING
CLIP
MAINTENANCE
COVER
Diagram 15.14
RETAINING
CLIP
SECURING
SCREW (3)
RETAINING
CLIP
AUTOMATIC BYPASS
HOUSING