Aerco AM 750B User Manual

AM Series Boilers and Water Heaters
OMM-0100_0D AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 3 of 154
GF-146 Ph.: 800-526-0288 03/28/16
4.9 LOW WATER CUTOFF (LWCO) ................................................................................................................. 39
4.10 EXPANSION TANK AND MAKEUP WATER ............................................................................................ 40
4.11 CIRCULATOR HEATING PUMP ............................................................................................................... 40
4.12 DOMESTIC HOT WATER SYSTEM PIPING WITH DIRECT WATER HEATER – WATER HEATERS .. 42
4.13 SCALDING – WATER HEATERS ............................................................................................................. 43
4.14 CONDENSATE DISPOSAL ....................................................................................................................... 45
CHAPTER 5: INSTALLATION - ELECTRICAL .................................................................... 47
5.1 ELECTRICAL CONNECTIONS – BOILERS AND WATER HEATERS ...................................................... 47
5.1.1 Power Supply Cable Connection - Boilers and Water Heaters .............................................................................. 47
5.1.2 Connecting Units in Cascade - Boilers and Water Heaters .................................................................................. 48
5.1.3 0-10 VDC Input Connections - Boilers and Water Heaters .................................................................................... 48
5.1.4 MODBUS Interface Connections – Boilers and Water Heaters ............................................................................. 49
5.2 ELECTRICAL CONNECTIONS – BOILERS ONLY .................................................................................... 50
5.2.1 Enable/Disable - Boilers ......................................................................................................................................... 50
5.2.2 Installing the Outdoor Temperature Sensor - Boilers............................................................................................ 50
5.2.3 Indirect Water Heater Connection - Boilers .......................................................................................................... 51
5.2.4 Indirect Water Heater Priority Selection - Boilers ................................................................................................. 52
5.3 ELECTRICAL CONNECTIONS – WATER HEATERS ONLY ..................................................................... 52
5.3.1 Storage Tank Connection - Water Heaters ............................................................................................................ 52
5.4 AMR RAPID RECOVERY OPTION WIRING .............................................................................................. 52
CHAPTER 6: INSTALLATION – VENTING AND COMBUSTION AIR PIPING ...................... 55
6.1 COMBUSTION AIR CONTAMINATION PREVENTION ............................................................................. 55
6.2 GENERAL VENTING AND AIR PIPING SYSTEMS ................................................................................... 56
6.3 MIN/MAX ALLOWABLE COMBUSTION AIR AND VENT PIPING LENGTHS ........................................... 58
6.4 GENERAL VENTING AND COMBUSTION AIR PIPING INSTALLATION ................................................. 58
6.5 SPECIFIC VENT INSTALLATIONS ............................................................................................................ 58
6.5.1 Installations Requiring High Temperature Venting ............................................................................................... 59
6.5.2 Sealing of PVC, CPVC or ABS .................................................................................................................................. 60
6.5.3 PVC/CPVC Vent Piping Materials ........................................................................................................................... 60
6.5.4 Air Intake and Vent Starter Pieces ......................................................................................................................... 61
6.5.5 Single Pipe Venting (Room Air Combustion) ......................................................................................................... 62
6.5.6 Determining Vent Termination Location ............................................................................................................... 63
6.5.7 Sidewall Termination - Two pipes ......................................................................................................................... 64
6.5.8 Combustion Air and Ventilation Openings ............................................................................................................ 65
6.5.9 Two Permanent Openings Method ....................................................................................................................... 65
6.5.10 One Permanent Opening Method ....................................................................................................................... 65
6.5.11 Installing Vent and Air Piping into Sidewall ......................................................................................................... 65
6.5.12 Sidewall Termination and Fittings ....................................................................................................................... 66
6.5.13 Multiple Vent and Air Terminations .................................................................................................................... 66
6.5.14 Sidewall Termination – Concentric Vent ............................................................................................................. 67
6.5.15 Sidewall Termination Installation ........................................................................................................................ 68
6.5.16 Multi-venting Sidewall Terminations .................................................................................................................. 69
6.5.17 Determining Location of Vertical Termination .................................................................................................... 70
6.5.18 Vertical Vent and Air Roof Termination Preparation .......................................................................................... 71
6.5.19 Installing Vertical Vent and Air Roof Terminations ............................................................................................. 71
6.5.20 Installing Multiple Vent and Air Vertical Terminations ..................................................................................... 72
6.5.21 Vertical Termination – Concentric Vent .............................................................................................................. 73
6.5.22 Determining Location of Vertical Concentric Vent Termination ......................................................................... 73
6.5.23 Multi-Venting Vertical Terminations .................................................................................................................. 73
CHAPTER 7: INSTALLATION – NATURAL GAS ................................................................ 75
7.1 GAS SUPPLY PIPING ................................................................................................................................. 75

Aerco AM 750B Specifications

General

Brand	Aerco
Model	AM 750B
Category	Boiler
Language	English