Test Descrip
�
on
Test Method
Pump Blockage Check
1- For a standard pump, open the plug indicated by "A" and check for movement in the
interior. If there is no movement, you can try to unblock it by turning counterclockwise.
2- Energy efficient pumps have auto- blockage function. When the pump is blocked, it
automatically tries to work at maximum torque every 1.5 seconds and resolve the blockage
issue.
To manually support the blocking operation, press the point indicated by "B" with a No:2
screwdriver and turn it co unterclockwise.
Standard Pump
Energy E
ffi
cient Pump
Subject
Descrip
�
on
Part’s Function
The component where the gas from the gas valve and the air from the silencer are mixed.
1- Combustion emission values deteriorate.
2- The device load may be higher or lower.
3- The device may prod uce noise (whistle) when operating.
Impact in Case of
Malfunction
Main Associated Error Codes
E01, E82
Error Diagnostics-Test Method
and Maintenance
1. Visual Inspection: Check for burrs, filth, etc. at and in the inlet and outlet of the venturi
.
2. Check the connection of the venturi with the gas pipe, fan and silencer.
3. Check the combustion emission values using a gas analyzer.
• Venturi
Table 14
Table 1
7
68
Summary of Contents for CONFEO PREMIX P 14 HM
Page 1: ...SERVICE MANUAL CONFEO PREMIX CONDENSING BOILER CONFEO PREMIX P 14 20 24 28 30 35 HM HCH HST...
Page 24: ...12 ELECTRICAL DIAGRAM Figure 15 24...
Page 34: ...Low Voltage Removing installing the pump cable FAN PWM CABLE Figure 39 Figure 40 34...
Page 52: ...Figure 76 Figure 77 52...
Page 83: ......
