Watts Aerco Benchmark 750 Boilers Manuals

Manuals and User Guides for Watts Aerco Benchmark 750 Boilers. We have 3 Watts Aerco Benchmark 750 Boilers manuals available for free PDF download: User Manual, Reference Manual

Watts Aerco Benchmark 750 User Manual (170 pages)

Gas-Fired Boilers

Brand: Watts | Category: Boiler | Size: 6 MB

Table of Contents
3
Foreword
7
Chapter 1. Safety Precautions

11
- Warnings & Cautions
  11
- Emergency Shutdown
  12
- Prolonged Shutdown
  12
Chapter 2. Installation

13
- Introduction
  13
- Receiving the Unit
  13
- Unpacking
  13
- Site Preparation
  14
- Installation Clearances
  14
- Setting the Unit
  15
- Supply and Return Piping
  16
- Pressure Relief Valve Installation
  18
- Condensate Drain & Piping
  19
- Gas Supply Piping
  21
- Gas Supply Specifications
  21
- Manual Gas Shutoff Valve
  21
- External Gas Supply Regulator
  22
- Ac Electrical Power Wiring
  22
- Electrical Power Requirements
  24
- Field Control Wiring
  25
- Outdoor Air in (OUT) & Air Sensor Common (COM)
  26
- AIR TEMP SENSOR Terminals
  27
- O 2 SENSOR Terminals (O2+ & O2-)
  27
- SPARK SIGNAL Terminals
  27
- ANALOG in Terminals
  27
- VALVE FEEDBACK Terminals
  27
- SHIELD Terminals (SHLD & SHLD)
  28
- ANALOG out Terminals
  28
- RS485 Comm (+, GND, & -)
  28
- RS232 Comm (Txd & Rxd)
  28
- Vfd/Blower (0-10 & AGND)
  28
- Interlocks
  28
- Fault Relay (NC, COM, & NO)
  29
- Auxiliary Relay Contacts (NC, COM, & NO)
  29
- Flue Gas Vent Installation
  29
- Combustion Air
  30
- Ducted Combustion Air
  30
- Sequencing Isolation Valve Installation
  31
- Benchmark Pump Relay
  32
Chapter 3. Operation

35
- Introduction
  35
- Control Panel Description
  35
- Control Panel Menus
  39
- Menu Processing Procedure
  39
- Operating Menu
  41
- Setup Menu
  42
- Configuration Menu
  42
- Tuning Menu
  45
- Combustion Cal Menu
  45
- Bst (Boiler Sequencing Technology) Menu
  46
- Start Sequence
  49
- Start/Stop Levels
  53
Chapter 4. Initial Start-Up

55
Chapter 5. Mode of Operation

65
- Introduction
  65
- Indoor/Outdoor Reset Mode
  65
- Reset Ratio
  65
- Building Reference Temperature
  65
- Outdoor Air Temperature Sensor Installation
  65
- Indoor/Outdoor Startup
  66
- Constant Setpoint Mode
  66
- Setting the Setpoint
  67
- Remote Setpoint Modes
  67
- Remote Setpoint Field Wiring
  68
- Remote Setpoint Startup
  68
- Direct Drive Modes
  68
- Direct Drive Field Wiring
  69
- Direct Drive Startup
  69
Chapter 6. Safety Device Testing

71
- Testing of Safety Devices
  71
- Low Gas Pressure Test
  72
- High Gas Pressure Test
  73
- Low Water Level Fault Test
  74
- Water Temperature Fault Test
  74
- Interlock Tests
  76
- Remote Interlock Test
  76
- Delayed Interlock Test
  76
- Flame Fault Tests
  77
- Air Flow Fault Tests
  79
- Blower Proof Switch Test
  79
- Blocked Inlet Switch Test
  79
- Ssov Proof of Closure Switch
  81
- Purge Switch Open During Purge
  82
- Ignition Switch Open During Ignition
  82
- Safety Pressure Relief Valve Test
  84
Chapter 7. Maintenance

85
Chapter 8. Troubleshooting Guide

99
- Introduction
  99
- Additional Faults Without Specific Fault Messages
  111
Chapter 9. Boiler Sequencing Technology

113
Appendix A: Heating Boiler Menu Item Descriptions

129
Appendix B: Startup, Status & Display Messages

137
Appendix C: Sensor Resistance/Voltage Chart

141
Appendix D: Recommended Periodic Testing

143
Appendix E: Indoor/Outdoor Reset Ratio Charts

145
Appendix F: Dimensional and Clearance Drawings

149
Appendix G: Part List Drawings

151
Appendix H: Wiring Diagrams

159
Appendix I: Piping Drawings

163
Appendix J: C-More Control Panel Views

165
Appendix K: Recommended Spares

167
Appendix L: 220V to 110V Transformer

169
- OMM-0119_0A AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
  170

Watts Aerco Benchmark 750 Reference Manual (79 pages)

Boilers With Edge Controller

Brand: Watts | Category: Boiler | Size: 12 MB

Watts Aerco Benchmark 750 Reference Manual (76 pages)

with Edge i Controller

Brand: Watts | Category: Boiler | Size: 3 MB

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Watts Aerco Benchmark 750 Boilers Manuals

Watts Aerco Benchmark 750 User Manual (170 pages)

Table of Contents

Chapter 1. Safety Precautions

Chapter 2. Installation

Chapter 3. Operation

Chapter 4. Initial Start-Up

Chapter 5. Mode of Operation

Chapter 6. Safety Device Testing

Chapter 7. Maintenance

Chapter 8. Troubleshooting Guide

Chapter 9. Boiler Sequencing Technology

Appendix A: Heating Boiler Menu Item Descriptions

Appendix B: Startup, Status & Display Messages

Appendix C: Sensor Resistance/Voltage Chart

Appendix D: Recommended Periodic Testing

Appendix E: Indoor/Outdoor Reset Ratio Charts

Appendix F: Dimensional and Clearance Drawings

Appendix G: Part List Drawings

Appendix H: Wiring Diagrams

Appendix I: Piping Drawings

Appendix J: C-More Control Panel Views

Appendix K: Recommended Spares

Appendix L: 220V to 110V Transformer

Watts Aerco Benchmark 750 Reference Manual (79 pages)

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Watts Aerco Benchmark 750 Reference Manual (76 pages)

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