Mitsubishi Electric CITY MULTI PEFY-P22VMS-E-S Data Book page 276

4. System component
S series
(1) Step demand and Low noise mode (CN3D)
Relay circuit
Adapter *2
1
X
2
Y
3
Preparations
in the field
Maximum cable
length is 10m
X,Y : Relay Contact rating voltage >= 15VDC
Contact rating current >= 0.1A
Minimum appicable load =< 1mA at DC
*2. Optional part : PAC-SC36NA-E or field supply.
DipSW8-1 (P100-140) or SW2-6 (P200-250) ON (Step demand only)
OFF
OFF 100%
Y
ON 0%
*They are rough values.
DipSW8-1 (P100-140) or SW2-6 (P200-250) OFF
(Compressor ON/OFF and Low noise mode)
Compressor
Y
ON/OFF
OPEN ON
SHORT OFF
(3) Autochangeover (CN3N)
Relay circuit Adapter *2
X
Y
Preparations
Maximum cable
in the field
length is 10m
SW1 : Cooling / Heating
SW2 : Validity / Invalidity of X
X, Y : Relay
Contact rating voltage >= 15VDC
Contact rating current >= 0.1A
Minimum applicable load =< 1mA at DC
*2. Optional part : PAC-SC36NA-E or field supply.
OFF
OFF
Y
ON Cooling
Outdoor unit
control board
CN3D
X
ON
75%
50%
X
Low noise mode
OPEN OFF
SHORT ON
Outdoor unit
control board
CN3N
1
2
3
X
ON
Normal
Heating
CONTROLLER
(2) Low noise mode
(CN3D + DipSW8-1 (P100-140) or SW2-6 (P200-250) OFF)
Relay circuit
Adapter *2
1
X
2
3
Preparations
in the field
Maximum cable
length is 10m
X : Relay Contact rating voltage >= 15VDC
Contact rating current >= 0.1A
Minimum applicable load =< 1mA at DC
*2. Optional part : PAC-SC36NA-E or field supply.
Low noise mode
: The sound pressure level is reduced by controlling
the maximum fan frequency and compressor frequency.
-Note-
The sound pressure level can not be reduced, when neither the
fan frequency nor the compressor frequency are maximum.
C7-R Rev.
Outdoor unit
control board
CN3D
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