Linked Operation With Peripheral Air Conditioners Equipment; Basic Pattern For Timer Control; Lossnay Operation; Obtaining Humidifier Signal - Mitsubishi Electric Mr.SLIM PE-3EAK Technical & Service Manual

(2) Basic pattern for timer control

Use a no-voltage contact point output timer (one that has separate circuits for the load side and timer power supply).
a) Timer-independent control
As selected by remote controller operation switch.
Orange
From indoor unit
Red
Brown
(3) Basic system
Refer to 9-7. COMBINED REMOTE/LOCAL CONTROL.

9-10. LINKED OPERATION WITH PERIPHERAL AIR CONDITIONERS EQUIPMENT

Lossnay operation

Linked operation with a Lossnay unit can be obtained by connecting Lossnay linkage cable (Model PAC-SB81VS - sold
separately) to the CN2L (Remote kit) on the circuit board of the indoor unit. This function must be selected from the
remote controller.
1 Summary of wiring
Connect the Lossnay linkage cable (Model PAC-
SB81VS) connector to CN2L on the indoor unit on the
circuit board of the indoor unit.
Connect the lead wire of the Lossnay linkage cable to
the Lossnay external control input terminal blocks (1)
and (2).
(At this time, the input terminal blocks (1) and (2)
have no polarity.)
2 Precautions when wiring
The Lossnay linkage cable can be extended up to a maximum of 500 meters.
When extending the Lossnay linkage cable, be sure to connect securely and take proper steps to ensure insulation.
(Extension cable specifications: Sheathed vinyl cord or cable 0.5 to 0.75mm
Lossnay linked cable
Arrange wiring so that there can be no contact between the Lossnay linkage cable and the power supply cord. Contact
may cause malfunctioning. (Separate by 5cm or more.)

9-11. OBTAINING HUMIDIFIER SIGNAL

The humidifier signal that is linked to the AC heating operation (indoor unit ventilator) can be obtained by connecting the
adapter for the humidifier signal to connector CN25 on the printed circuit for the indoor unit and wiring it to the humidifier
unit via the on-site relay box. There is no output when the thermostat is off, during heating preparation and during
defrosting.
Basic wiring
X: Relay
(DC12V) CN25 (Indoor unit circuit board)
W Please consult your nearest Mitsubishi Electric
representative for information about obtaining the
adapter for humidifier signal.
9-12. EXTERNAL MOUNTING OF TEMPERATURE SENSOR
Temperature control from an alternative external location can be performed by connecting the temperature sensor (Model
PAC-SE41TS-E - sold separately) to the CN20 connector on the circuit board for the indoor unit.
The wired remote controller also has an internal temperature sensor. Function selection from the remote controller is
required.
Refer to "FUNCTION SETTING" for information of installation manual about selecting functions with the remote controller.
T
b) Combined control by timer and remote controller
SW ON Timer control
SW OFF Remote controller control
From indoor unit
Wiring diagram
Control circuit board
Connector
(CN2L)
Lossnay linkage
Slim indoor unit
2 )
System example
Humidifier
unit
54
Orange
T
Red
Brown
SW
1
2
3
(PAC-SB81VS)
Relay box
(On-site tinstallation)
Relay box
(On-site tinstallation)
Indoor unit
Remote controller Remote controller
Lossnay
External control
input terminal
block