Lennox MPB036S4M Service Manual

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Table 3. Status Indicators
Display Remark
8 Indoor unit A capacity demand code
Normcode*HP
(9K:1HP,12K:1.2HP,18K:1.5HP)
9 IndoorunitBcapacitydemandcode
10 Indoor unit C capacity demand code
11 IndoorunitDcapacitydemandcode
12 Indoor unit E capacity demand code
13 Outdoorunitamendatorycapacitydemandcode Forcedcooling:7
14
Thefrequencycorrespondingtothetotalindoor
units amendatory capacity demand
15 Thefrequencyafterthefrequencylimit
16 Thefrequencysendingtocompressorcontrolchip
17 IndoorunitAevaporatoroutlettemp.(T2BA)
Ifthetemp.islowerthan-9degree,thedigitaldisplaytubewillshow“-9”.Ifthetemp.
ishigherthan70degree,thedigitaldisplaytubewillshow“70”.Iftheindoorunitisnot
connected,thedigitaldisplaytubewillshow:“――”
18 IndoorunitBevaporatoroutlettemp.(T2BB)
19 IndoorunitCevaporatoroutlettemp.(T2BC)
20 IndoorunitDevaporatoroutlettemp.(T2BD)
21 IndoorunitEevaporatoroutlettemp.(T2BE)
22 IndoorunitAroomtemp.(T1A)
Ifthetemp.islowerthan0degree,thedigitaldisplaytubewillshow“0”.Ifthetemp.is
higherthan50degree,thedigitaldisplaytubewillshow“50”.Iftheindoorunitisnot
connected,thedigitaldisplaytubewillshow:“――”
23 IndoorunitBroomtemp.(T1B)
24 IndoorunitCroomtemp.(T1C)
25 IndoorunitDroomtemp.(T1D)
26 IndoorunitEroomtemp.(T1E)
27 IndoorunitAevaporatortemp.(T2A)
Ifthetemp.islowerthan-9degree,thedigitaldisplaytubewillshow“-9”.Ifthetemp.
ishigherthan70degree,thedigitaldisplaytubewillshow“70”.Iftheindoorunitisnot
connected,thedigitaldisplaytubewillshow:“――”
28 IndoorunitBevaporatortemp.(T2B)
29 IndoorunitCevaporatortemp.(T2C)
30 IndoorunitDevaporatortemp.(T2D)
31 IndoorunitEevaporatortemp.(T2E)
32 Condenserpipetemp.(T3)
33 Outdoorambienttemp.(T4)
34 Compressordischargetemp.(TP)
Thedisplayvalueisbetween30~129degree.Ifthetemp.islowerthan30degree,the
digitaldisplaytubewillshow“30”.Ifthetemp.ishigherthan99degree,thedigitaldisplay
tubewillshowsingledigitandtensdigit.Forexample,thedigitaldisplaytubeshow“0.5”,it
meansthecompressordischargetemp.is105degree.)
35 ADvalueofcurrent
Thedisplayvalueishexnumber.
Forexample,thedigitaldisplaytubeshow“Cd”,itmeansADvalueis205.
36 ADvalueofvoltage
37 EXV open angle for indoor unit A
Actualdata/4.
Ifthevalueishigherthan99,thedigitaldisplaytubewillshowsingledigitandtensdigit.
Forexample,thedigitaldisplaytubeshow“2.0”,itmeanstheEXVopenangleis
120×4=480p.)
38 EXVopenangleforindoorunitB
39 EXV open angle for indoor unit C
40 EXVopenangleforindoorunitD
41 EXV open angle for indoor unit E
42 Frequencylimitsymbol
Bit7 FrequencylimitcausedbyIGBTradiator
Thedisplayvalueishexnumber.
Forexample,thedigitaldisplay
tubeshows2A,thenBit5=1,
Bit3=1,Bit1=1.
It means frequency limit caused
byT4,T3andcurrent.
Bit6 FrequencylimitcausedbyPFC
Bit5 FrequencylimitcausedbyT4.
Bit4 FrequencylimitcausedbyT2.
Bit3 FrequencylimitcausedbyT3.
Bit2 FrequencylimitcausedbyT5.
Bit1 Frequencylimitcausedbycurrent
Bit0 Frequencylimitcausedbyvoltage
43 AveragevalueofT2 (SumT2valueofallindoorunits)/(numberofindoorunitsingoodconnection)
44 Outdoorunitfanmotorstate Off:0,Highspeed:1,Medspeed:2,Lowspeed:3Breeze:4,Superbreeze:5
45 Thelasterrororprotectioncode 00 means no malfunction and protection
46 IndoorunitFcapacity Not used

Lennox MPB036S4M Specifications

General

Brand	Lennox
Model	MPB036S4M
Category	Air Conditioner
Language	English