Lochinvar 150 - 800 Display panel parameter access, Button Operation Display Comments

Page 11

Service Manual

1Service (continued)

Display panel parameter access

Table 1C This is a typical example of accessing a parameter, shown for parameter H3, cascade address

BUTTON

OPERATION

DISPLAY

COMMENTS

This example shows how to access parameter H3, cascade address. The first display shown is at the beginning of the menu listings, after entering the installer access code.

 

-

Beginning of menu listings.

 

>A General

 

 

B N/A

 

 

 

 

 

DOWN

Press 1 time to toggle menu listing

 

>C

Data Log

 

 

D

Functions

 

 

 

 

 

 

 

 

>E

WHR Settings

 

DOWN

Press 2 times to toggle menu listing

 

 

 

F

N/A

 

 

 

 

 

 

 

 

>G

N/A

 

DOWN

Press 1 time to toggle menu listing

 

 

 

H

Control Modes

 

 

 

 

 

 

 

 

G

Anti-Cycling

 

DOWN

Press 1 time to select second listing

 

 

 

>H

Control Modes

 

 

 

 

 

 

 

 

 

 

ENTER/RES

Press 1 time to list parameters

 

H2 Contrl Source

 

 

 

 

 

 

 

 

 

 

UP

Press 1 time to select next parameter

H3 Cascade Addr

 

 

Press 1 time to show parameter value

H3 Cascade Addr

ENTER/RES

Member 0001

 

 

UP

Press 1 time to change value

H3 Cascade Addr

(or DOWN)

Member 0002

ENTER/RES Press 1 time to save new value

H3 Cascade Addr

 

ENTER/RES

Press 1 time to return to main menu

>A General

B N/A

 

 

ENTER/RES

Press 1 time to return to normal

WHR:Pre-Purge

operation

OUT:123.7˚F

The caret symbol, ">" highlights the selectable line

The menu toggles to the next two menu options

The menu toggles to the next two menu options

The menu toggles to the next two menu options

The menu toggles to the next two menu options

H2 will flash

H3 will flash

H2 will stop flashing; parameter value will appear

Parameter will increase or decrease, depending on button pressed

H3 will flash

This display example assumes a call for water heating is present

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Contents Models 150 Contents Niosh stated First Aid Please read before proceedingHandling ceramic fiber materials 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 parametersNot used Control modes WHR settingsFunctions Circulation pumps Service NotificationOwner maintenance Maintenance Maintenance and annual startupService technician 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 OpenProgr Rem Ctrl FltParameters Low 24 VAC Service BlkWatch Dog Error No Error StoredGas Supply Pressure Combustion Analysis ProcedureGas Valve Adjustment Or ObstructionModel Gas valve adjustment procedureModels 150 Models 600 4Gas Valve Adjustment Model