User Guide

66
Service Manual NeoTherm 80 - NeoTherm 285
Using the Original (White) User Interface
ThisinterfacewasusedonallNeoThermmodelsproducedthrough
2012.
Thereareafewfeaturesonthisinterfacethatyoushouldknowabout-
• WhentheNeoThermunitisrstturnedon,theinterfacewillgothrougha
self-testroutinefor90seconds.Duringthistime,noneofthebuttonswill
work.Justwaitfortheself-testtobecompletedbeforeyoutrytousethe
interface.
Figure D2-1 - Typical display on original (white)
user interface
MENUITEM FUNCTION RANGE DEFAULT
Outlet Displaysthecurrentoutlet 55-190°F 120°F
 watertemperatureandallows
 thesetpointtobeadjusted
Inlet Displaysthecurrentinlet — —
water temperature
DeltaT Displaysthecurrent — —
temperature rise across
the heat exchanger
DHWwater DisplaysthecurrentDHW 60-182°F 120°F
temperature temperatureandallowsthe
 setpointtobeadjusted
Stack Displaysthecurrentstack — —
temperature temperature
Outdoor Displaysthecurrentoutdoor — —
temperature air temperature
FiringRate Displaysthecurrentring — —
 ratebasedonfanRPM.
LL Displaysthecurrentsystem 60-190°F 120°F
 temperatureforLead/Lagoperation
 andallowsthesetpointtobeadjusted
Table D2-1 - User Mode Menu Structure
• Theinterfacerecordsthelastlockoutandalert
codes,buttheseareerasediftheinterfaceisreset
orpowertotheNeoThermunitisturnedoff.(Wewill
explainhowtohandlelockoutsonthisinterfacein
SectionD3.)
• Wheneveryouchangeasetpointorvalue,youmust
presstheDonebutton.Ifyoudonotdothis,thein-
terfacewillcontinuetousetheoldsetpointorvalue.
Thedisplaynavigationisdividedintothreeoperating
modes:User,Setup,andDiagnostic.
User Mode
NormallytheunitwilldisplaytheUsermodescreenshown
totheright.NoticetheentryforOutletintheupperleft-hand
corner.Thismeanstheinterfaceisdisplayingthecurrent
outlet temperature.
TocheckthesetpointforCentralHeat,presstheUpbut-
ton.UsetheUporDownbuttonstochangethesetpoint.
Important-YoumustpresstheDonebuttontosavethe
newsetpoint,ortheinterfacewillusetheoldsetpoint.
Togotothenextiteminthismenu,presstheNextbut-
ton.Theinterfacewillshowtheinletwatertemperature.
UsetheNextbuttontostepthroughtheotheritemsin
thismenu.Seethetabletotheright.
IfyouwanttochangetheDHW(domestichotwater)set-
point,usethesameprocedurewehavejustdescribed-
usetheUpandDownbuttonstosetthenewvalue,then
pressDone.
Up
button
Down
button
Resetbutton Donebutton
D2