Watts Aerco Benchmark OMM-0116 Installation And Start-Up Manual page 4

Benchmark 750-3000 Installation & Startup Manual
CONTENTS
5.6.2 Delayed Interlock Test .................................................................................................................... 89
5.7 FLAME FAULT TEST ........................................................................................................... 90
5.8 AIR FLOW FAULT TESTS - BLOWER PROOF & BLOCKED INLET SWITCHES .............. 91
5.8.1 Blower Proof Switch Test ............................................................................................................... 91
5.8.2 Blocked Inlet Switch Test ............................................................................................................... 93
5.9 SSOV PROOF OF CLOSURE SWITCH CHECK ................................................................. 94
5.10 PURGE SWITCH OPEN DURING PURGE ........................................................................ 94
5.11 IGNITION SWITCH OPEN DURING IGNITION ................................................................. 97
5.12 SAFETY PRESSURE RELIEF VALVE TEST ..................................................................... 97
SECTION 6: BOILER SEQUENCING TECHNOLOGY ............................................ 99
6.1 INTRODUCTION .................................................................................................................. 99
6.1.1 INSTALLATION NOTES ................................................................................................................... 100
6.2 AERCO BST QUICK START CHART ................................................................................. 100
6.3 BST IMPLEMENTATION INSTRUCTION .......................................................................... 101
6.3.1 OPTION 1 - CONSTANT SETPOINT WITH DIRECT WIRED HEADER SENSOR .................................. 101
6.3.2 OPTION 2 - CONSTANT SETPOINT WITH MODBUS WIRED HEADER SENSOR .............................. 102
6.3.3 OPTION 3 - OUTDOOR RESET WITH DIRECT WIRED HEADER SENSOR AND DIRECT WIRED
OUTDOOR SENSOR ................................................................................................................................ 103
6.3.4 OPTION 4 - OUTDOOR RESET WITH MODBUS HEADER SENSOR AND MODBUS OUTDOOR SENSOR
............................................................................................................................................................... 105
6.3.5 OPTION 5 - REMOTE SETPOINT WITH DIRECT WIRED HEADER SENSOR AND 4-20MA SETPOINT
DRIVE ..................................................................................................................................................... 107
6.3.6 OPTION 6 - REMOTE SETPOINT WITH DIRECT WIRED HEADER SENSOR AND MODBUS SETPOINT
DRIVE ..................................................................................................................................................... 109
6.3.7 OPTION 7 - REMOTE SETPOINT WITH MODBUS HEADER SENSOR AND 4-20MA SETPOINT DRIVE
............................................................................................................................................................... 111
6.3.8 Option 8 - Remote Setpoint with MODBUS Header Sensor AND MODBUS Setpoint Drive......... 113
SECTION 7: ONAER SETUP ............................................................................ 115
7.1 INTRODUCTION ................................................................................................................ 115
7.1.1 Connecting the Ethernet Cable .................................................................................................... 115
7.1.2 Confirming the Ethernet Connection ........................................................................................... 117
7.1.3 Confirm Ethernet DHCP Configuration ......................................................................................... 117
APPENDIX A: DIMENSIONAL AND CLEARANCE DRAWINGS ............................. 119
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OMM-115_D GF-200 5/9/2019
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