Mitsubishi Electronics PCFY-P24NKMU-E, PCFY-P15NKMU-E, PCFY-P30NKMU-E From the preceding

Page 18

From the preceding page

Control modes

 

Control details

Remarks

 

 

 

 

 

 

2. Fan

2-3. Thermo OFF mode

 

 

When the thermoregulating function changes to OFF, the indoor fan operates in

 

 

[Extra low].

 

 

 

 

 

 

 

 

2-4. Heat defrosting mode

 

 

The indoor fan stops.

 

 

 

 

 

 

 

3. Drain pump

3-1. Drain pump control

 

The drain pump turns ON for the specified amount of time when any of the following

 

 

 

 

conditions is met:

 

 

ON for 3 minutes after the operation mode is switched from COOL or DRY to

 

 

another operation mode (FAN).

 

 

ON for 6 minutes after the float switch is submerged in the water when the

 

 

float swich control judges the sensor is in the water.

 

 

 

 

 

 

 

 

3-2. Float switch control

· Same control as

 

• Float switch control judges whether the sensor is in the air or in the water by

COOL operation

 

turning the float switch ON/OFF.

 

 

In the water: Detected that the float switch is ON for 15 seconds.

 

 

In the air : Detected that the float switch is OFF for 15 seconds.

 

 

 

 

4. Vane control

(1) Initial setting: OFF → HEAT···[last setting]

 

(Up/down vane

When the last setting is [Swing] ··· [Downward D]

 

change)

When changing the mode from exception of HEAT to HEAT operation

 

 

···[Downward D]

 

 

(2) Vane position:

 

 

Horizontal →Downward A →Downward B →Downward C→Downward D→Swing→Auto

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(3) Restriction of vane position

 

 

The vane is horizontally fixed for the following modes.

 

 

(The control by the remote controller is temporally invalidated and control by

 

 

the unit.)

 

 

•Thermo OFF

 

 

•Hot adjust [Extra low] mode

 

 

•Heat defrost mode

 

 

 

 

 

 

 

18

Image 18
Contents Contents Parts Catalog OCB450Part Names and Functions Wired remote controller Specification SpecificationsElectrical Parts Specifications Sound LevelNC Curves PCFY-P15NKMU-E PCFY-P24NKMU-EHow to read curves CmmcfmFront View Pcfy Gas pipe side/flared connection Wiring Diagram PCFY-P15, 24, 30, 36NKMU-EPCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E Refrigerant System DiagramUnit mm inch Service Ref Ø12.7 1/2 Ø15.88 5/8Microprocessor Control How to operateRoom temperature Desired temperature Indoor Unit Control 6-1. Cool OperationFloat switch control Control modes Control details Remarks Thermo regulating DRY OperationPressed one time. Dry 67 to 87F Drain pump Same control as Cool operation VaneFAN Operation Display in Heat operation Defrost Heat OperationPressed one time. Heating 63 to 83F Fan Control detailsControl modes Control details Remarks Fan Thermo OFF mode From the precedingWhen Unit is Stopped Auto Operation Automatic COOL/HEAT Change Over OperationTroubleshooting DownLinear expansion valve Become OFF Trouble shootingClosing a valve 1 → 2 → 3 → 4 → ValveSensor signal check Function of DIP Switch Switch Match the indoor unit’s refrigerant pipe with the BC High ceiling On SWA settingHow to set address How to set branch number SW14 Series R2 onlyJumper Switch PoleOperation by switch Effective Pattern aTest Point Diagram PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-ESW1 PCFY-P15NKMU-E PCFY-P24NKUM-E Disassembly ProcedureOperating Procedure Photos & Illustrations PCFY-P30NKMU-E PCFY-P36NKMU-ERemoving the room temperature thermistor TH21 Removing the fan motor and right side fanRemove the screw from the side panel, and remove Removing the fan 3 connectionRemoving the side panel Side panel by sliding the panel to the frontRemoving the vane motor Removing the under panelRemoving the drain pan Removing the guide vane Removing the pipe thermistors/Liquid TH22 and GasTH23 Removing the Auto vaneRemoving the heat exchanger and LEV Remove 2 screws from the heat exchangerRemove the heat exchanger with LEV Page New publication, effective Feb

PCFY-P30NKMU-E, PCFY-P36NKMU-E, PCFY-P24NKMU-E, PCFY-P15NKMU-E specifications

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