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General| Category | Water Heater |
|---|---|
| Brand | Lochinvar |
| Model | Armor AWH0400N |
| Fuel Type | Natural Gas |
| Input BTU/hr | 400, 000 |
| Thermal Efficiency | 95% |
| Water Connection | 3/4" NPT |
| Gas Connection | 3/4" NPT |
| Storage Capacity (Gallons) | 40 |
| Minimum Water Supply Pressure (psi) | 20 |
| Maximum Water Supply Pressure (psi) | 150 |
| Vent Connection | 4" |
| Vent Diameter (inches) | 4 |
Safety precautions for maintenance, including electrical disconnect and cooling.
Guidelines for safe operation, avoiding air blockage and dealing with flooding.
Defines closet/alcove and provides clearance requirements for them.
Specifies clearances, air openings, and preventing combustion air contamination.
Precautions for garages and procedures for using existing vent systems.
Instructions for pallet removal and converting the unit for LP gas.
Illustrates sidewall and vertical termination options and installation procedures.
Covers materials (PVC, Polypropylene, Stainless Steel), sizing, and Canadian requirements.
Criteria for common venting and preventing air contamination.
Guidelines for sidewall terminations and required clearance distances.
Instructions for preparing wall penetrations and terminating multiple vents.
Guidelines for vertical terminations and required clearance distances on a roof.
Using existing vent systems for alternate vertical concentric venting.
Guidance on selecting suitable locations and placing the unit outdoors.
Discusses piping methods, components, scalding hazards, and water chemistry.
Details on valves, expansion tanks, and pressure drop considerations.
Instructions for connecting gas supply and checking inlet pressure.
Requirements for natural/propane gas, sizing, pressure, and valve replacement.
Lists compliance codes and instructions for line and low voltage connections.
Details control wiring, sensors, switches, and cascade wiring.
Instructions for connecting, maintaining, and troubleshooting the condensate drain line and trap.
Procedures for water chemistry, gas leak checks, and pre-startup checks.
Checking flame, combustion, adjusting set points, and setting the clock.
Steps to configure multiple units for cascade operation.
Overview of operation, inputs/outputs, temperature control, and protection features.
How temperature is regulated, high limits, freeze protection, and cascade operation.
Overview of maintenance schedules and general checks.
Checking piping, water system, relief valve, and electrodes.
Detailed cleaning of heat exchanger and checks for flue/air systems.
Electrical ladder diagram illustrating system controls and wiring.
Detailed wiring diagram for the appliance and its components.
