User Guide

Service Manual NeoTherm 80 - NeoTherm 285

Using the Original (White) User Interface - continued

Normallyyouwillwanttodothe“highre”setuprst.PressNextagainuntil

yousee“Max,”thenpressNextonemoretime.Thedisplaywillstepbetween

anumber(again,thecurrentoutlettemperature)and“100%”(theringratefor

highre.AdjustthegasvalvetogetthecorrectCO

value.

Todothe“lowre”setting,youdonothavetopressNextagain.Instead,use

theDownarrowtoreducetheringrateto10%.

Important-Whenyouhavenishedthecombustiontestingandgasvalvead-

justment,presstheDonebuttontoreturntonormaloperations.Whenyouare

nishedchangingvaluesintheUserorSetupmode,youmustpresstheDone

buttontosavethenewvalues,ortheinterfacewillusetheoldvalues.

Reacting to Lockouts

on the Original (White) User Interface

Thesystemrespondstothreekindsoftroubleindications:

• A”lockout”iscausedbyaseriousproblemthatmightinvolveasafetyissue.

Oncethecontrollerentersalockout,theburnerwillshutdown,andwillnot

beallowedtorunagainuntilthecauseoftheproblemiscorrected,andyou

reset the control system.

• Thesystemmayentera“hold”foraperiodoftimebeforelockingout.This

allowsthecontrollertoseeiftheerroriscorrectedbeforeitgoestoahard

lockout.

• An“alert”indicatesthatsomefeatureofthecontrolsystem’soperationwas

notcorrect,delayed,orwaitingforaresponse.Thisdoesnotnecessarily

indicateaproblem.

HereistheprocedureusedtorecoverfromaLockout.

• The“Lockout”indicationwillappearinthelowerleft-handcornerofthedis-

play,andthelockoutcodewillashinthecenter.

• Writedownthelockoutcode,andlookitupintheAppendixattheendof

this manual.

• PresstheResetbuttonnearthelowerleft-handcornerofthedisplay.This

willresetthelockout,andthelockoutcodewilldisappear.(Thisiswhywe

toldyoutowriteitdown.)

Iftheproblemconditionisstillpresent,theunitwilllockoutagain.SeeSectionA

fortroubleshootinginstructions.

YoucanalsocheckthelastlockoutoralertcodeusingtheDiagnosticmodeof

thedisplay:

PressandholdtheNextbuttonuntilthedisplayshowstheamesignalfollowed

by“µA.”ThistellsyouthedisplayisintheDiagnosticmode.

PressNextagaintoseethelastalert.PressNextonemoretimetoseethelast

lockout.

cont.