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Logamax plus GB142-24
Servicing instructions
Table Of Contents - Buderus Logamax plus GB142-24 Servicing Instructions
Condensing gas boiler
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Also See for Logamax plus GB142-24
:
Installation and servicing instructions
(100 pages)
,
Installation manual
(68 pages)
,
Installation instructions manual
(64 pages)
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Contents
Table of Contents
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Table of Contents
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1
Safety and general instructions
1.1
Designated use
1.2
Hazard definitions
1.3
The following instructions must be observed
1.4
Observe these instructions for heating
system water
1.5
Tools, materials and additional equipment
1.6
Inspection
1.7
Disposal
1.8
Abbreviations
2
Regulations and guidelines
3
Product description
4
Operation
4.1
Operating the BC10 basic controller
4.1.1
General
4.2
Menu structure of the BC10 basic controller
4.2.1
"Flue gas test" menu
4.2.2
"Service Mode" menu
4.2.3
"Manual Operation" menu
4.2.4
"Adjustments" menu
5
Function
5.1
General
5.2
Structure diagram "Function"
6
Symptoms
6.1.1
General
6.1.3
Display codes on the display of the BC10
basic controller
6.2
LED on the UBA 3
7
Diagnosis
7.1
Faults without a fault code
7.2
Faults with a fault code
8
Actions
8.1
Testing, measuring, adjusting and replacing
various components
8.1.1
Checking the UBA 3 fuse; replace if necessary
8.1.2
External connection board fuse
8.1.3
Checking the fan unit; 120 VAC control
8.1.4
Checking the fan unit; supply cord (120V AC)
8.1.5
Checking the fan unit; tacho cable
8.1.6
Replacing the fan unit
Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
8.1.7
Checking the supply/return/safety/hot-water
temperature sensors
4
8.1.9
Checking the hot-water temperature sensor
4
8.1.10 Checking the supply/return/safety sensors cable
4
8.1.11 Checking the hot surface ignitor; control
4
8.1.12 Checking the hot surface ignitor; resistance
8.1.13 Checking the hot surface ignitor; supply cord
5
8.1.15 Testing the ionization current
5
8.1.16 Checking the ionization electrode; cable
5
8.1.17 Checking the ionization electrode;
5
replace if necessary
6
8.1.18 Checking the gas control valve;
cable connections
8.1.20 Checking the gas control valve;
7
cable connection between gas control valve
and UBA 3 installation base
8.1.21 Ohming out the gas control valve
8
8.1.22 Replacing the gas control valve
8.1.23 Checking the control unit; connections
to the boiler
8.1.24 Bleed the gas supply pipe
9
8.1.25 Measuring the inlet gas pressure
9
(flow pressure)
9
8.1.26 Measure and adjust the gas/air ratio
9
8.1.27 Measuring the carbon monoxide content (CO)
10
8.1.28 Transformer; replacing
11
8.1.29 Automatic air purging system; replacing
12
8.1.30 Burner; replacing
12
8.1.31 Sight glass; replacing
8.1.32 Condensate trap; replacing
8.1.33 Pressure sensor; replacing
14
8.1.34 Heat exchanger; replacing
14
8.1.35 UBA 3; replacing
15
9
Appendix
20
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Spare parts
20
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