PEERLESS PUREFIRE PF-850 - Page 56

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Figure 8.53: Mutiple Boiler Wiring – Daisy Chain Configuration

Figure 8.54: Multiple Boiler Wiring – Independent Connection to each Dependent Boiler

BOILER CONTROL: OPERATION

Main Page

Default Chapter2
- Default Chapter2
  - Table of Contents2
- Using this Manual3
  - Installation Sequence3
  - Special Attention Boxes3
1 Preinstallation4
- General4
- Codes & Regulations4
- Accessibility Clearances5
- Combustion & Ventilation Air5
- Planning the Layout8
2 Boiler Set-Up9
- Stacking Multiple Boilers9
3 Venting & Air Inlet Piping10
- Approved Materials10
- Exhaust Vent/Air Intake Pipe Location10
- Exhaust Vent/Air Intake Pipe Sizing14
- Exhaust Vent/Air Intake Pipe14
- Installation14
- Test Port for Exhaust Sampling15
- Common Venting Multiple Boilers15
- Boiler Removal from Common Venting System16
4 Water Piping & Controls17
- Operating Parameters17
- System Components17
- System Piping21
- Freeze Protection21
- Special Applications26
5 Fuel Piping27
- Fuel Line Sizing27
- Gas Supply Piping - Installation27
- Gas Supply Piping - Operation28
- Main Gas Valves - Operation29
6 Condensate Trap & Drain System30
- Condensate System30
- Condensate Drain Piping30
7 Electrical Connections & Internal Wiring32
- General32
- Customer Connections32
- Zone Circulator Wiring33
- Internal Wiring33
8 Boiler Control: Operation36
- Ignition Sequence36
- Status Display38
- User Menu41
- Installer Menu43
- Defaults55
- Multiple Boilers55
9 Start-Up Procedure59
- Check Water Piping59
- Check Electric Power59
- Check Gas Piping59
- Check Operation59
- Combustion Test59
- Test Operating Limit60
- Test High Limit61
- Multiple Boiler Systems61
- Lighting & Operating Instructions62
10 Troubleshooting63
- Errors63
- Blocking Errors63
- Locking Errors63
- Warning Errors63
- Special Ignition/Flame Failure64
- Interlocks Open64
11 Maintenance71
- General (with Boiler in Use)72
- Weekly (with Boiler in Use)72
- Annually (before the Start of Heating Season)72
- Condensate System Cleaning Instructions72
- Combusion Chamber Coil Cleaning Instructions73
12 Boiler Dimensions & Ratings75
13 Repair Parts78
Appendix A. Pixel Display Screen88
- Stand Alone Pixel Display88
- Multiple Boiler (Cascade) Pixel Display88
Appendix B. Burner Lcd Status Screens90
Appendix C. User Menu92
Appendix D. Installer Menu Structure94
Appendix E. Combustion Test Record96
Service Log97

PEERLESS PUREFIRE PF-850 - Page 56

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