Lochinvar 1.3, 1.5 Combustion Analysis Procedure, Or Obstruction, Gas Supply Pressure

Page 49

3 Troubleshooting (continued)

Combustion Analysis Procedure

1.Turn the main power off to the water heater by placing the “On/Off” switch in the OFF position.

2.Remove the flue temperature sensors from the flue pipe connections. Note: Combustion measurements will be made at this point.

3.Turn the main power on to the water heater by placing the “On/Off” switch in the ON position.

4.Navigate to the Service Mode Screen from the Status Screen by pressing the MAIN button and then the SERVICE MODE button.

5.On the Service Screen place Heat Exchanger 1 into operation by selecting Heat Exchanger 1 with the SELECT button and turning the heat exchanger on by pressing the ON/OFF button (OFF indicates that the heat exchanger is off and ON indicates that the heat exchanger should be firing).

6.Insert the probe from a combustion analyzer into the hole left by the removal of the flue temperature sensor.

Note: Heat Exchanger 1 is the top heat exchanger; please ensure the probe is in the top flue sensor location.

7.Once the heat exchanger has modulated up to full fire measure the combustion. The values should be in the range listed in Table 3H above. CO levels should be less than 200 ppm for a properly installed unit. If the combustion is not within range reference the chart below for possible causes and corrective actions.

Service Manual

Table 3H Flue Products

Natural Gas

Propane

 

 

 

 

CO2

O2

CO2

O2

8.0% - 10%

3.0% - 6.5%

9.0% - 11%

4.1% - 6.9%

 

 

 

 

8.Once the Heat Exchanger 1 analysis is complete, test the safety shutoff device by turning the manual shutoff valve to the OFF position and ensuring that Heat Exchanger 1 shuts down and registers an alarm. Open the manual shutoff valve, reset the control, and return to Service Mode.

9.Repeat the same procedure for Heat Exchanger 2 by selecting Heat Exchanger 2 while on the Service Mode Screen. Be certain to insert the probe from the combustion analyzer into the Heat Exchanger 2 flue temperature sensor location.

10.Turn the main power off to the water heater and replace the flue temperature sensor into the flue pipe connection.

11.Place the water heater back into normal operation.

￿WARNING You must replace the flue gas temperature sensor to prevent flue gas spillage into

the room. Failure to comply could result in severe personal injury, death, or substantial property damage.

Table 3G Troubleshooting Chart - Combustion Levels

POSSIBLE CAUSE

CORRECTIVE ACTION

•Refer to Section 3 - General Venting of the Armor X2 Installation and Operation Manual Vent/Air Intake Length for the proper venting and air intake methods for the Armor X2 water heater.

or Obstruction

•Check for obstructions at the vent/air intake terminals.

Gas Supply Pressure

• Refer to Section 7 - Gas Connections of the Armor X2 Installation and Operation

 

Manual for the proper gas supply for the Armor X2 water heater.

 

 

Dirty/Damaged Burner

• Refer to page 35 of this manual for burner removal and cleaning procedures.

• Replace burner if necessary.

 

 

 

Gas Valve Adjustment

• Refer to page 50 of this manual for the gas valve adjustment procedure.

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Contents Models 1.0, 1.3, Contents Niosh stated First Aid Handling ceramic fiber materialsMaintenance ServiceTroubleshooting Armor X2 display Primary Smart Control Module Control inputsControl outputs Secondary Smart Touch Control Module PrimaryHow the water heater operates General OperationSequence of operation Sequence of operation Sequence of operationParameter table This table lists the parameters and where to access themBMS Status Screen Viewable and changeable control parametersService Details Screen Service Main Screen Setup Screen Service/Setup Parameters Screen Service Set Point Parameters Screen Night Setback Parameters Screen Cascade Operation Cascade Parameters Screen10Vdc Operation 10Vdc BMS Parameters ScreenService Cascade Screen Service Temps Screen Burners Screen Graph Select Screen History Screen Service Mode Screen Maintenance Maintenance and annual startup Clean condensate trap Address reported problemsInspect water heater area Inspect water heater interiorCheck water system Flue vent system and air pipingCheck expansion tank Check water heater relief valve Check all water heater wiring Check ignition ground wiringCheck control settings Check flame signalCheck Delta T Cleaning water heater heat exchangerOiled bearing circulators Alarm Screen TroubleshootingCheck the following Before troubleshootingCheck control module fuses Troubleshooting Temperature Resistance Checking temperature sensorsFault Cause Corrective Action Condensate Flow SwitchDrain Blocked Flame outFlame Lost Light cont’dWhile Running Cont’d Manual ResetHigh Limit High Limit / HEX Automatic ResetTemp SW Blower RPM’sToo High Louver Proving SwitchSensor Open Sensor ShortedAir Flow Too Resets Try LaterLow Flap ValveNo Error Stored Internal FaultWriting to MemosGas Valve Adjustment Combustion Analysis ProcedureOr Obstruction Gas Supply PressureModel Gas valve adjustment procedureModels 1.3
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1.5, 1.3, 1 specifications

Lochinvar 1 is a remarkable achievement in the realm of modern technology and engineering. As a powerful and efficient water heater, it has been designed to cater to a wide range of residential and commercial needs. One of the standout features of Lochinvar 1 is its advanced heating technology, which incorporates a high-efficiency condensing design. This technology allows the unit to achieve impressive energy savings by maximizing heat transfer while minimizing energy consumption.

The Lochinvar 1 utilizes a stainless steel heat exchanger that enhances durability and corrosion resistance. This not only extends the lifespan of the unit but also ensures consistent performance over time. Coupled with a user-friendly control system, users can easily adjust settings and monitor performance, enhancing overall convenience and usability.

Another key characteristic of the Lochinvar 1 is its compact design, making it suitable for a variety of installation environments. Whether in a residential basement or a commercial utility room, the unit’s space-saving configuration allows for efficient use of available area without compromising on capability.

Safety features are integral to the Lochinvar 1, providing peace of mind for users. The unit is equipped with advanced monitoring systems that can detect irregularities and automatically shut down the system if necessary. This not only protects the equipment but also enhances the safety of the environment in which it operates.

In terms of performance, Lochinvar 1 boasts a high recovery rate, ensuring hot water is available on demand. This is particularly beneficial for settings with high water usage, allowing simultaneous operations without lag.

Moreover, the unit supports various venting options, offering flexibility during installation. Whether using traditional vertical venting or innovations like direct venting, Lochinvar 1 accommodates different building designs and local codes, making it highly versatile.

In conclusion, Lochinvar 1 epitomizes the melding of efficiency, reliability, and user-friendly technology. With its high-performance features, robust safety systems, and adaptable installation options, it stands out as a forefront player in the water heating industry, meeting the diverse needs of today's consumers and businesses alike.
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