Specifications

CNTR-78
CONTROLLER (Feb. 2009)
CONTROLLER
DATA U4
4. SYSTEM COMPONENT
OK
NO
1)SW4-4:OFF(CompressorON/OFF,Lowsoundmode)
2)WhenSW4-4ononeoutdoorunitinonerefrigerantcircuitsystemissettoON(4levelsofon-DEMAND)(*3)
3)WhenSW4-4onthetwooutdoorunitsinonerefrigerantcircuitsystemissettoON(8levelsofon-DEMAND)(*3,*4)
CN3D1-3P
Open
Short-circuit
*1WhenSW4-4ontheoutdoorunitinonerefrigerantcircuitsystemissettoON(4levelsor8levelsor12levelsofon-DEMAND),thisfunctioncannotbeused.
*2 Thisfunctionandthe4levelsor8levelson-DEMANDfunctioncanbeusedtogether.InputtheordertoCN3D1-2P on the outdoorunitwhoseSW4-4issettoOFF.
*3InputtheordertoCN3DontheoutdoorunitwhoseSW4-4issettoON.
*4
CN3DofNo.1,2,3canbeselectedarbitrarywiththeoutdoorunitwhoseSW4-4issettoON.
2-levelofon-Demand*1
100%(NoDemand)
0%
Lowsoundmode*2
OFF
ON
CN3D1-2P
Open
Short-circuit
CN3D1-3P
Open
Short-circuit
Open
100%(NoDEMAND)
0%
1-2P
Open
Short-circuit
1-2P
1-3P
Open
Short-circuit
Open
Short-circuit
100%
(NoDEMAND)
50%
88%
75%
50%
0%
38%
25%
88%
38%
75%
63%
75%
25%
63%
50%
Short-circuit
75%
50%
CN3D1-2P
8levelsofon-DEMAND
No.1CN3D
NotethefollowingstepstobetakenwhenusingSTEPDEMAND.
Example:Whenswitchingfrom100%to50%
StepsinDEMAND
levelsetting
Ifthedemandsettingsareswitchedinthewrongorderlistedasthewrong
exampleabove,theunitmaygointothermoOFFmode.
ThepercentageoftheDEMANDlistedinthetableaboveisan
approximatevaluebasedonthecompressorvolumeanddoesnot
necessarilycorrespondwiththecapacity.
ThisfunctionandtheLowsoundmodefunctioncannotbeusedtogether.
<WRONG>
<CORRECT>
100%
100%
0%
75%
50%
50%
No.2CN3D
Open Short-circuit
Open Short-circuit Open Short-circuit
4)WhenSW4-4onthealloutdoorunitsinonerefrigerantcircuitsystemissettoON(12levelsofon-DEMAND)(*4)
1-2P
Open
Short-circuit
1-2P
1-3P
1-2P
1-3P
Open
Short-circuit
Open
Short-circuit
100%
67%
92%
84%
67%
34%
59%
50%
92%
59%
84%
75%
84%
50%
75%
67%
67%
34%
59%
50%
34%
0%
25%
17%
59%
25%
50%
42%
50%
17%
42%
34%
12levelsof
on-DEMAND
No.1 CN3D
No.2 CN3D
No.3 CN3D
Short-circuitOpen
Open
Open OpenShort-circuitShort-circuit
OpenShort-circuit Open Short-circuit Open Short-circuit Open Short-circuit
1-2P
Open
Short-circuit
1-2P
1-3P
1-2P
1-3P
Open
Short-circuit
Open
Short-circuit
92%
59%
84%
75%
59%
25%
50%
42%
84%
50%
75%
67%
75%
42%
67%
59%
84%
50%
75%
67%
50%
17%
42%
34%
75%
42%
67%
59%
67%
34%
59%
50%
12levelsof
on-DEMAND
No.1CN3D
No.2CN3D
No.3CN3D
Short-circuitOpen
Short-circuit
Open Open Short-circuitShort-circuit
Open Short-circuit Open Short-circuit Open Short-circuit Open Short-circuit
4-1. Y-, R2-, S-Series