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Lochinvar Armor AWH0650N User Manual

Lochinvar Armor AWH0650N
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Installation & Operation
Manual
Models: 400 - 1000
Series 100 & 101
This manual must only be used by
a qualified heating installer / service
technician. Read all instructions,
including this manual and the
Armor Water Heater Service
Manual, before installing. Perform
steps in the order given. Failure
to comply could result in severe
personal injury, death, or substantial
property damage.
WARNING
Save this manual for future reference.
100331786_2000588637_Rev B
-- This water heater MUST NOT be installed in
any location where gasoline or flammable vapors
are likely to be present.
-- WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electric switch; do not use any
phone in your building.
Immediately call your gas supplier from a near by
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a
qualified installer, service agency, or the gas
supplier.
WARNING: If the information in this
manual is not followed exactly, a fire or
explosion may result causing property damage,
personal injury or loss of life.

Table of Contents

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Lochinvar Armor AWH0650N Specifications

General IconGeneral
ModelAWH0650N
CategoryWater Heater
Fuel TypeNatural Gas
Thermal Efficiency96%
Gas Connection Size1" NPT
Diameter24 inches
Weight150 lbs
Minimum Gas Supply Pressure5" WC
Maximum Gas Supply Pressure10 inches W.C.

Summary

Please Read Before Proceeding

The Armor Water Heater - How it Works

Ratings

Determine Water Heater Location

Provide Clearances

Specifies minimum distances from combustible materials and clearances for service access.

Closet and Alcove Installations

Defines closet/alcove criteria and specifies vent material requirements.

Provide Air Openings to Room

Details air supply requirements for different installation room types.

Prevent Combustion Air Contamination

Warns against contaminants in combustion air and outlines necessary precautions.

Prepare Water Heater

Remove Water Heater from Wood Pallet

Step-by-step guide for safely removing the water heater from its shipping pallet.

Gas Conversions

Instructions for converting the water heater from natural gas to LP gas.

General Venting

Direct Venting Options - Sidewall Vent

Illustrates sidewall termination configurations for direct venting.

Direct Venting Options - Vertical Vent

Illustrates vertical termination configurations for direct venting.

Install Vent and Combustion Air Piping

Guidelines for installing vent and combustion air piping, including material requirements.

Sizing

Details on determining appropriate combustion air intake and vent piping sizes.

Sidewall Direct Venting

Vent/Air Termination – Sidewall

Guidelines for locating and installing sidewall vent and air terminations.

Prepare Wall Penetrations

Instructions for cutting holes and preparing wall penetrations for vent and air piping.

Sidewall Termination – Optional Concentric Vent

Details on installing optional concentric vent termination kits for sidewall venting.

Vertical Direct Venting

Vent/Air Termination – Vertical

Guidelines for locating and installing vertical vent and air terminations on a roof.

Prepare Roof Penetrations

Instructions for cutting roof penetrations for vent and air piping.

Vertical Termination – Optional Concentric Vent

Details on installing optional concentric vent termination kits for vertical venting.

Outdoor Installations

Outdoor Venting

Requirements and considerations for outdoor installation configurations.

Outdoor Vent / Air Inlet Location

Specifies location criteria to prevent obstructions and ensure proper airflow.

System Piping

System Water Piping Methods

Basic steps and considerations for installing system water piping.

Scalding

Warnings and recommendations to prevent scalding from hot water.

Piping Components

Lists and describes essential piping components and their functions.

Gas Connections

Connecting Gas Supply Piping

Step-by-step instructions for connecting the gas supply piping to the water heater.

Natural Gas

Pipe sizing and pressure requirements for natural gas connections.

Propane Gas

Pipe sizing and pressure requirements for propane gas connections.

Field Wiring

Line Voltage Connections

Instructions for making 120 VAC power connections to the unit.

Low Voltage Connections

Instructions for routing and connecting low voltage wiring to the control board.

Wiring of the Cascade

Procedures for wiring multiple water heaters in a cascade configuration.

Condensate Disposal

Condensate Drain

Instructions for connecting and maintaining the condensate drain line.

Start-up

Check/Control Water Chemistry

Procedures for testing and adjusting water chemistry for optimal performance.

Check for Gas Leaks

Safety procedures for checking gas connections for leaks before startup.

Final Checks Before Starting

A checklist of final inspections and tests before initiating appliance startup.

Check Flame and Combustion

Steps to verify burner ignition, flame pattern, and combustion analysis.

Operating Information

Protection Features

Details on built-in safety features like temperature and flue limiting.

Freeze Protection

Information on the appliance's freeze protection mechanism and installation precautions.

Cascade

How multiple water heaters can be wired and controlled in a cascade sequence.

Sequence of Operation

Describes the step-by-step sequence of events during appliance operation.

Maintenance

Service Technician

Tasks and procedures for annual startup and maintenance by a qualified technician.

Owner Maintenance

Routine maintenance tasks recommended for the owner to perform regularly.

Annual Cleaning

Procedures for annual cleaning of the condensate trap and system.

Check All Piping for Leaks

Steps to inspect all water and gas piping for leaks and ensure system integrity.

Diagrams

Ladder Diagram

Electrical schematic illustrating the control logic and connections.

Wiring Diagram

Detailed electrical wiring diagram of the appliance and its components.

Notes

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