Watts AERCO Benchmark BMK4000, Installation And Start-Up Manual

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Benchmark Platinum-Edge [ii]: Installation Manual
CONTENTS
OMM-
136_G • GF-210 • 8/20/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
2 of 62
Table of Contents
FOREWORD ...................................................................................................... 5
SECTION 1: SAFETY PRECAUTIONS ................................................................... 9
1.1 WARNINGS & CAUTIONS ................................................................................................... 9
1.2 EMERGENCY SHUTDOWN ...............................................................................................10
1.3 PROLONGED SHUTDOWN ...............................................................................................10
1.4 IMPORTANT
– FOR MASSACHUSETTS INSTALLATIONS ...............................................11
SECTION 2: INSTALLATION ............................................................................. 13
2.1 INTRODUCTION.................................................................................................................13
2.2 RECEIVING THE UNIT .......................................................................................................13
2.3 UNPACKING .......................................................................................................................13
2.4 SITE PREPARATION .........................................................................................................14
2.4.1 Installation Clearances ................................................................................................................... 14
2.4.2 Setting the Unit .............................................................................................................................. 17
2.4.3 Housekeeping Pad Requirements ................................................................................................. 20
2.5 LIFTING PROVISIONS .......................................................................................................21
2.5.1 BMK750 – 1000 Lifting Provisions .................................................................................................. 21
2.5.2 BMK1500 – 5000N Lifting Provisions ............................................................................................. 22
2.5.3 BMK5000 & 6000 Lifting Provisions ............................................................................................... 22
2.6 SUPPLY AND RETURN PIPING .........................................................................................23
2.6.1 BMK750 – 1000 Supply and Return Piping ..................................................................................... 23
2.6.2 BMK1500 – 5000N Supply and Return Piping ................................................................................ 23
2.6.3 BMK5000 – 6000 Supply and Return Piping ................................................................................... 25
2.6.4 Dual Inlet Return Piping ................................................................................................................. 25
2.7 PRESSURE RELIEF VALVE INSTALLATION ....................................................................26
2.8 CONDENSATE DRAIN AND PIPING ..................................................................................27
2.9 GAS SUPPLY PIPING ........................................................................................................29
2.9.1 Gas Supply Specifications ............................................................................................................... 29
2.9.2 External Gas Supply Regulator ....................................................................................................... 29
2.9.3 Manual Gas Shutoff Valve .............................................................................................................. 32
2.10 AC ELECTRICAL POWER WIRING ..................................................................................33
2.10.1 Electrical Power Requirements .................................................................................................... 33
2.10.2 Power Panel Locations ................................................................................................................. 33
2.10.3 Electrical Power Panel Internal Components ............................................................................... 34
2.11 FIELD CONTROL WIRING
– I/O BOARD .........................................................................35
2.11.1 I/O Board Connections ................................................................................................................. 36
2.12 FLUE GAS VENT INSTALLATION ....................................................................................40
2.12.1 MASSACHUSETTS INSTALLATIONS ............................................................................................... 40
2.13 COMBUSTION AIR ...........................................................................................................41
2.13.1 DUCTED COMBUSTION AIR .......................................................................................................... 41
2.14 BST SEQUENCING ISOLATION VALVE INSTALLATION ................................................41
2.15 BOILER PUMP RELAY .....................................................................................................44
2.16 NEXT STEPS ....................................................................................................................45
SECTION 3: ONAER SETUP .............................................................................. 47