Lennox MCA Series

15
7.5. Double-Check Pipe Connections
Duringoperation,thepressureoftherefrigerantcircuitwill
increase.Thismayrevealleaksthatwerenotpresentduring
your initial leak check. Take time during the Test Run to
double-checkthatallrefrigerantpipeconnection points do
nothaveleaks.
• Usingremotecontrol,returnunittothenormal
operatingtemperature.
• Usinginsulationtape,wraptheindoorrefrigerantpipe
connectionsthatyouleftuncoveredduringtheindoor
unitinstallationprocess.
7.6. Ambient Temperature is Below 63°F
(17°C)
You can’t use the remote controller to turn on the COOL
function when the ambient temperature is below 17°C. In
thisinstance,youcanusetheMANUALCONTROLbutton
totesttheCOOLfunction.
• Liftthefrontpaneloftheindoorunit,andraiseituntilit
clicksinplace.
• TheMANUALCONTROLbuttonislocatedontheright-
handsideoftheunit.Pressitonetimetoselectthe
COOLfunction.
• PerformTestRunasnormal.
• Pushthebuttononceandunitisinautomode.
Temperatureissetat75°Fwithnochangingofset
temperature..
Manual control
button
Figure 17. Manual Button Location