Aerco AM Series User Manual

TID-0137_0A
TECHNICAL INSTRUCTIONS
Revised: 01/18/2015
AM Series Boiler
Heat Exchanger Maintenance & Replacement
AM Series Heat Exchanger Module
For all models of AM Series
Boilers, Including:
Water Heaters:
• AM 399W
• AM 500W
• AM 750W
• AM 1000W
Boilers:
• AM 399B
• AM 500B
• AM 750B
• AM 1000B
TID-0137_0A AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 1 of 36
Ph.: 800-526-0288 01/18/2015

Aerco AM Series Specifications

General

Fuel Type	Natural Gas or Propane
Heat Exchanger Material	Stainless Steel
Operating Pressure	160 psi
Input Range	2, 000, 000 BTU/h
Temperature Range	200°F
Vent Material	Stainless Steel
Type	Modulating Condensing Boiler
Efficiency	Up to 96% Thermal Efficiency

Summary

Material and Tool Requirements

Preliminary Preparation of the Unit

Initiating the Burners

Steps to start the unit's burners and prepare for maintenance.

Closing Water and Gas Connections

Steps to shut off water and gas supply valves before maintenance.

Draining Water from the Unit

Procedure to drain all water from the unit using compressed air.

Removing the Covers and Initial Disassembly

Instructions for removing the unit's top and front covers.

Disconnecting Cables and Wiring Connections

Steps to safely disconnect all electrical cables and wiring harnesses.

Removing the Heat Exchanger

Installing the Heat Exchanger

Final Reassembly

Connecting Cables and Wiring Connections

Reconnecting the smaller and larger wiring harnesses to unit components.

Installing the Smaller Wiring Harness

Routing and connecting the smaller wiring harness to specific components.

Installing the Larger Wiring Harness

Routing and connecting the larger wiring harness to various components.

Turning on Services and Leak Testing

Restoring gas and water services and performing leak checks.

Turning On Water and Return to Service

Reconnecting water lines and returning the unit to operational status.