Lochinvar 150 - 800 service manual Circulation pumps, Service Notification

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1Service (continued)

I: Circulation pumps

DHW pump delay

The DHW pump delay parameter sets the length of time the DHW (WHR) pump will run after a heater demand has been satisfied. Setting the delay time to 0 will disable the pump. This parameter is adjustable by the installer by accessing parameter I3. The time range for this parameter is 0 minutes to 40 minutes. The default time is 30 seconds.

J: Service Notification

Service notification in months

When the water heater control determines that a scheduled service is due based on days of installation, the water heater display will alternate the standard water heater display text with the message SERVICE DUE every 5 seconds. This parameter is adjustable by the installer by accessing parameter J1. The time range for this parameter is 0 months to 36 months. The default time is 12 months.

Service notification running hours

When the water heater control determines that a scheduled service is due based on the hours of actual operation, the water heater display will alternate the standard water heater display text with the message SERVICE DUE every 5 seconds. This parameter is adjustable by the installer by accessing parameter J2. The time range for this parameter is 0 hours to 100,000 hours. The default time is 10,000 hours.

Service notification cycles

When the water heater control determines that a scheduled service is due based on the number of water heater cycles, the water heater display will alternate the standard water heater display text with the message SERVICE DUE every 5 seconds. This parameter is adjustable by the installer by accessing parameter J3. The range for this parameter is 0 cycles to 100,000 cycles. The default is 10,000 cycles.

Reset service notification counter

Once servicing has been completed, the service notification counter should be reset. This parameter can be reset by the installer by accessing parameter J4. Once accessed, press the RESET key to reset the service notification counter.

Service Manual

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Contents Models 150 Contents Please read before proceeding Handling ceramic fiber materialsNiosh stated First Aid Troubleshooting What is in this manual?Service MaintenanceArmor water heater display ServiceControl inputs Control outputs Saving parameters General OperationHow the water heater operates Sequence of operationSequence of operation Use this procedure to access menus from the display panel Display panel menu accessButton Operation Display Comments Display panel parameter accessWHR Parameter tableNot used Data logging Viewable and changeable control parametersWHR settings FunctionsNot used Control modes Circulation pumps Service NotificationMaintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check water heater relief valve Flue vent system and air pipingCheck water system Check expansion tankPerform start-up and checks Check ignition ground wiringCheck all water heater wiring Check control settingsOiled bearing circulators Check flame signalCleaning heat exchanger Review with ownerCheck the following TroubleshootingBefore troubleshooting Check control module fusesUnit Does Not No DisplayNo Burner OperationTemperature F Resistance Ω Checking temperature sensorsOpening NoisyNo Pump Relief ValveGV/Relay Flow SwitchFlame SequenceNo Flame Ign Running No FlameFan Speed Low Manual ResetHigh Limit Fan LowSensor Shorted Fan HighFan Speed High Sensor OpenRem Ctrl Flt ParametersProgr Low 24 VAC Service BlkWatch Dog Error No Error StoredGas Supply Pressure Combustion Analysis ProcedureGas Valve Adjustment Or ObstructionGas valve adjustment procedure Models 150Model Models 600 4Gas Valve Adjustment Model