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Lennox MCA Series Service Manual

Lennox MCA Series
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hours,thentheincrementbecomesonehour.
6.5.7. Timer OFF Operation
1. Pressthe Timer OFF button. The TimerOFF icon, the
lastauto-offtime,and“h”willdisplay.
2. PresstheTimer OFFbuttonagaintosettheamountof
timebeforetheindoorunitstopsoperation.Eachpress
will increase the time in half hour increments until 10
hours,thentheincrementbecomes1hour.
6.5.8. Modify Timer ON/OFF settings
1. Press either the Timer ON button or the Timer OFF
buttontomodifythatsetting.
2. Usetheuparrowanddownarrowbuttonstochangethe
timedoperationintervals.
3. Setthetimerto0.0toturnofftimedoperation.
7. Connection to Centralized Controller
7.1. Set Indoor Unit Address for Centralized
Control (Used with VRF Only)
All indoor units connected to a centralized controller must
haveauniqueaddress.UsetheS1dipswitchandtheS2
dialswitchtosettheaddressforeachindoorunit.Thetable
belowshowshowtosettheuniqueaddresses.
Allindoorunitsarefactorysetto“0”.Tochangetheaddress
to“1”,movethedialswitchtothe1position,donotadjust
thedipswitches.Tochangetheaddressto“35”,movedip
switch1totheUPpositionandmovethedialswitchtothe
3 position.
0
8
4
1
2
3
5
6
7
C
9
A
B
D
E
F
1
2
ON
0
8
4
1
2
3
5
6
7
C
9
A
B
D
E
F
1
2
ON
0
8
4
1
2
3
5
6
7
C
9
A
B
D
E
F
1
2
ON
0
8
4
1
2
3
5
6
7
C
9
A
B
D
E
F
1
2
ON
S1+S2
FOR SETTING ADDRESS
RANGE
ADDRESS
FACTORY SETTING
0 ~ F 0 ~ F 0 ~ F 0 ~ F
0 ~ 15 16 ~ 31 32 ~ 47 48 ~ 63
DIP SWITCH
HANDLES
LEFT - DOWN
RIGHT - DOWN
LEFT - DOWN
RIGHT - UP
LEFT - UP
RIGHT - DOWN
LEFT - UP
RIGHT - UP
Figure 13. Dip Switches
Indoor Unit Address is 0
BothdipswitchhandlesareDOWN,dialpointsto0.
Indoor Unit Address is 32
Dipswitch1isUPanddipswitch2isDOWN,dialpointsto0.
Switchlocationandcolorvariesforeachindoorunit.Twoexamplesareshownabove.
Figure 14. Dip Switch Settings

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Lennox MCA Series Specifications

General IconGeneral
BrandLennox
ModelMCA Series
CategoryAir Conditioner
LanguageEnglish

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