Watts Aerco Benchmark GF-208 Manuals

Manuals and User Guides for Watts Aerco Benchmark GF-208. We have 1 Watts Aerco Benchmark GF-208 manual available for free PDF download: Installation And Start-Up Manual

Watts Aerco Benchmark GF-208 Installation And Start-Up Manual

Watts Aerco Benchmark GF-208 Installation And Start-Up Manual (95 pages)

Natural Gas, Propane Gas and Dual Fuel Fired Modulating & Condensing Boilers

Brand: Watts | Category: Boiler | Size: 4.45 MB

Table of Contents

Table of Contents
2
Foreword

5
Safety Precautions

9
Installation

13
- Introduction
  13
- Receiving the Unit
  13
- Unpacking
  13
- Site Preparation
  14
  - Installation Clearances
    14
  - Setting the Unit
    16
  - Lifting Provisions
    17
  - Multiple Unit Installations
    17
- Supply and Return Piping
  17
- Pressure Relief Valve Installation
  19
- Pressure/Temperature Gauge Installation
  19
- Condensate Drain and Piping
  20
- Gas Supply Piping
  22
- Ac Electrical Power Wiring
  24
  - Electrical Power Requirements
    24
  - Power Box Location
    24
- Field Control Wiring
  26
  - Outdoor Air & Air Sensor Common
    27
  - Air Temp Sensor
    28
  - O 2 Sensor (+ & -)
    28
  - Spark Signal (+ & -)
    28
  - Analog in
    28
  - Valve Feedback
    28
  - Shield (Shld & Shld)
    29
  - Analog out
    29
  - RS485 Comm (+, GND, & -)
    29
  - RS232 Comm (Txd & Rxd)
    29
  - Vfd/Blower (0-10 & AGND)
    29
  - Interlocks
    29
  - Fault Relay (NC, COM, & NO)
    30
  - Auxiliary Relay Contacts (NC, COM, & NO)
    30
- Flue Gas Vent Installation
  31
  - Massachusetts Installations
    31
- Combustion Air
  32
  - Ducted Combustion Air
    32
- Benchmark Pump Relay
  32
- Sequencing Isolation Valve Installation
  34
Benchmark 5000-6000 Boiler Installation & Startup Manual

37
Start Sequence

37
Initial Start-Up

47
Safety Device Testing

63
- Testing of Safety Devices
  63
- Low Gas Pressure Test
  63
- High Gas Pressure Test
  65
- Low Water Level Fault Test
  67
- Water Temperature Fault Test
  68
- Interlock Tests
  69
  - Remote Interlock Test
    69
  - Delayed Interlock Test
    69
- Flame Fault Test
  70
- Air Flow Fault Tests
  70
  - Blower Proof Switch Test
    71
  - Blocked Inlet Switch Test
    72
- Ssov Proof of Closure Switch Check
  73
- Purge Switch Open During Purge
  74
- Ignition Switch Open During Ignition
  75
- Safety Pressure Relief Valve Test
  76
Boiler Sequencing Technology

77
Benchmark 5000-6000 Boiler Installation & Startup Manual

81
Appendix A: Dimensional and Clearance Drawings

93

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