Ariston Combi A 24 MFFi - Page 20

Ariston Combi A 24 MFFi

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Supplied By www.heating spares.co Tel. 0161 620 6677

20

Fig. 20

Fig. 21

Fig. 22

162

Table of Contents

Default Chapter1
- Installation and Servicing1
Customer Care2
- Guarantee2
- Statutory Requirements2
- Table of Contents3
- Contents3
- Introduction4
User Instructions5
- 1 Control Panel5
- 2 How to Use6
- 3 Maintenance7
- 4 Guarantee7
- 5 Practical Information7
  - Setting the Mechanical Clock8
- 6 Setting the Time Clock8
  - Setting the Digital Clock9
Installers' Instructions11
- 7 Description11
- 8 Dimensions12
- 9 Hydraulic Data12
10 Installation Requirements13
11 Installing the Boiler16
12 Connecting the Flue18
- Fitting the 5" Flue (Ø 80 / 125 Horizontal/Vertical)19
- Fitting the Coaxial Flue (Ø 60/100 Horizontal)19
- FITTING VERTICAL FLUE (Ø 60 / 100)21
- FITTING the TWIN FLUE (Ø 80 / 80)22
13 Electrical Connections25
- Fitting Digital Time Clock27
14 Commissioning and Testing28
- Initial Preparation28
- Initial Start-Up28
- Adjusting the Co229
- Adjusting the Maximum Heating Power29
- Fitting the External Sensor29
- Gas Conversion29
- Completion30
- External Sensor Set-Up30
- Operational Checks30
- Instructing the End User31
15 Fitting the Casing32
- Central Heating Mode33
16 Sequence of Operation33
- Domestic Hot Water Mode34
17 Adjustments and Settings35
- Lowering the Control Panel42
- Removing the Front Panel42
Servicing Instructions42
- To Gain General Access42
- Access to the Combustion Chamber43
- Removing the Combustion Chamber Front Panel43
- Removing the Burner44
- Removing the Detection Electrode44
- Removing the Ignition Electrode44
- Removing the Fan45
- Removing the Gas Valve45
- Removing the Heat Exchanger46
- Removing the Spark Generator46
- Access to the Water Circuit47
- Drain down47
- Removing the 3 Way Valve47
- Removing the Float of the Flow Switch47
- Removing the Pump48
- Removing the Secondary Heat Exchanger48
- Removing the Domestic Expansion Vessel49
- Removing the Overheat Thermostat49
- Removing the Pressure Relief Valve49
- Removing the Temperature Sensors (Ntc's)49
- Access to the Control System50
- Removing & Cleaning the Condensate Trap50
- Removing the DHW Flow Switch50
- Removing the Pcb's50
- Removing the Pressure Gauge50
- Connecting the External Sensor51
- Removing the Fuses51
18 Replacement of Parts42
19 Incorrect Function52
- Cleaning the Primary Exchanger53
- General Remarks53
20 Maintenance Instructions53
- Operational Test53
21 Short Spares List54
22 Technical Data55
23 Benchmark Commissioning Checklist57
24 Service Interval Record58
25 Notes59

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