Watts Aerco TAG-0072 GF-146-E Operation & Maintenance Manual page 3

AM Series Boiler & Water Heater User Manual
TABLE OF CONTENTS
4.4 FREEZE PROTECTION .............................................................................................................................. 46
4.5 FLOOR RADIANT HEATING SYSTEMS - BOILERS ................................................................................. 46
4.6 PIPING COMPONENTS - BOILERS ........................................................................................................... 46
4.7 PIPING COMPONENTS - WATER HEATERS ........................................................................................... 47
4.8 SAFETY RELIEF VALVE ............................................................................................................................ 48
4.9 LOW WATER CUTOFF (LWCO) ................................................................................................................. 49
4.10 EXPANSION TANK AND MAKEUP WATER ............................................................................................ 50
4.11 CIRCULATOR HEATING PUMP ............................................................................................................... 50
4.12 DOMESTIC HOT WATER SYSTEM PIPING WITH DIRECT WATER HEATER: WATER HEATERS .... 52
4.13 SCALDING - WATER HEATERS ............................................................................................................. 53
4.14 CONDENSATE DISPOSAL ....................................................................................................................... 55
SECTION 5: INSTALLATION - ELECTRICAL ................................................................... 57
5.1 ELECTRICAL CONNECTIONS - BOILERS AND WATER HEATERS ...................................................... 57
5.1.1 Power Supply Cable Connection - Boilers and Water Heaters .............................................................................. 57
5.1.2 Connecting Units in Cascade - Boilers and Water Heaters .................................................................................. 58
5.1.3 0-10 VDC Input Connections - Boilers and Water Heaters .................................................................................... 58
5.1.4 MODBUS Interface Connections - Boilers and Water Heaters ............................................................................. 59
5.2 ELECTRICAL CONNECTIONS - BOILERS ONLY .................................................................................... 60
5.2.1 Enable/Disable - Boilers ......................................................................................................................................... 60
5.2.2 Installing the Outdoor Temperature Sensor - Boilers............................................................................................ 60
5.2.3 Indirect Water Heater Connection - Boilers .......................................................................................................... 61
5.2.4 Indirect Water Heater Priority Selection - Boilers ................................................................................................. 61
5.3 ELECTRICAL CONNECTIONS - WATER HEATERS ONLY ..................................................................... 62
5.3.1 Storage Tank Connection - Water Heaters ............................................................................................................ 62
5.4 AMR RAPID RECOVERY OPTION WIRING .............................................................................................. 62
SECTION 6: INSTALLATION - VENTING AND COMBUSTION AIR PIPING ...................... 65
6.1 COMBUSTION AIR CONTAMINATION PREVENTION ............................................................................. 65
6.2 GENERAL VENTING AND AIR PIPING SYSTEMS ................................................................................... 66
6.3 MIN/MAX ALLOWABLE COMBUSTION AIR AND VENT PIPING LENGTHS ........................................... 68
6.4 GENERAL VENTING AND COMBUSTION AIR PIPING INSTALLATION ................................................. 68
6.5 SPECIFIC VENT INSTALLATIONS ............................................................................................................ 68
6.5.1 Installations Requiring High Temperature Venting ............................................................................................... 69
6.5.2 Sealing of PVC, CPVC or ABS .................................................................................................................................. 70
6.5.3 PVC/CPVC Vent Piping Materials ........................................................................................................................... 70
6.5.4 Air Intake and Vent Starter Pieces ......................................................................................................................... 71
6.5.5 Single Pipe Venting (Room Air Combustion) ......................................................................................................... 72
6.5.6 Determining Vent Termination Location ............................................................................................................... 73
6.5.7 Sidewall Termination - Two pipes ......................................................................................................................... 74
6.5.8 Combustion Air and Ventilation Openings ............................................................................................................ 75
6.5.9 Two Permanent Openings Method ....................................................................................................................... 75
6.5.10 One Permanent Opening Method ....................................................................................................................... 75
6.5.11 Installing Vent and Air Piping into Sidewall ......................................................................................................... 75
6.5.12 Sidewall Termination and Fittings ....................................................................................................................... 76
6.5.13 Multiple Vent and Air Terminations .................................................................................................................... 76
6.5.14 Sidewall Termination - Concentric Vent ............................................................................................................. 77
6.5.15 Sidewall Termination Installation ........................................................................................................................ 78
6.5.16 Multi-venting Sidewall Terminations .................................................................................................................. 79
6.5.17 Determining Location of Vertical Termination .................................................................................................... 80
6.5.18 Vertical Vent and Air Roof Termination Preparation .......................................................................................... 81
6.5.19 Installing Vertical Vent and Air Roof Terminations ............................................................................................. 81
6.5.20 Installing Multiple Vent and Air Vertical Terminations ..................................................................................... 82
6.5.21 Vertical Termination - Concentric Vent .............................................................................................................. 83
6.5.22 Determining Location of Vertical Concentric Vent Termination ......................................................................... 83
OMM-0100_E • GF-146 • 11/15/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 3 of 170