Lennox MPB012S4S Service Manual

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19.3. Outdoor Unit Spot Check Function
ThereisacheckswitchinoutdoorPCB.PushtheswitchSW1tocheckthestatesofunitwhentheunitisrunning.Thedigital
displaytubewilldisplaythefollowprocedurewhenpushSW1eachtime.
SW1
Figure 63. SW1 Location
Table 3. Status Indicators
Display Remark
0 NormalDisplay Displayrunningfrequency,runningstateormalfunctioncode
1 Quantityofindoorunitsingoodconnection
Actual data
Display Number of indoor units
1 one
2 two
3 three
4 four
5 ve
2 Outdoorunitrunningmode Off:0,Fanonly:1,Cooling:2,Heating:3,Forcedcooling:4
3 Indoor unit A capacity
Thecapacityunitishorsepower.Iftheindoorunitisnotconnected,thedigitaldisplay
tubewillshow:“――”
(9K:1HP,12K:1.2HP,18K:1.5HP)
4 IndoorunitBcapacity
5 Indoor unit C capacity
6 IndoorunitDcapacity
7 Indoor unit E capacity

Lennox MPB012S4S Specifications

General

Brand	Lennox
Model	MPB012S4S
Category	Air Conditioner
Language	English