Mitsubishi Electronics PCH30GK, PCH24GK, PCH36GK, PCH42GK OC277-38, COOL/DRY operation, Auto return

Page 38

2-5 Auto vane control

 

 

SWING

 

TIMER OFF TIMER

CLOCK AUTO AUTO

FAN

 

CHECK SET TEMP.

START STOP

FILTER

SPEED

 

 

AUTO

CHECK MODE

 

 

RETURN

TEST RUN

1 Horizontal

2 20° downward

3 40° downward

4 60° downward

5 swing

<How to operate>

To change the air flow direction, press AIR DISCHARGE button.

1

2

3

4

5

Horizontal

20°

40°

60°

SWING

Available in COOL operation with fan speed on HIGH or in HEAT operation.

Unavailable in DRY operation.

If fan speed changes from HIGH to LOW during 20° downward airflow in COOL mode, the direction automat- ically changes to horizontal.

Changes by pressing the AIR DISCHARGE button.

(1) COOL/DRY operation

At the start-up of COOL or DRY operation, the airflow direction in automatically set to horizontal. After, it can be changed to another direction with AIR DISCHARGE button on the remote controller.

<Auto return>

When 40° or 60° airflow is set with fan speed in LOW, “AUTO RETURN” appears right side of the air direction. One hour later the direction changes to horizontal degrees, automatically and “AUTO RETURN” disappears.

(2) HEAT operation

At the start-up of HEAT operation, airflow direction depends on the setting of the last operation.

After, it can be changed to another direction with AIR DISCHARGE button. The airflow direction shifts to horizontal regard- less of the remote controller settings under any of the following conditions.

Thermostat OFF

Defrosting

Indoor fan speed EXTRA-LOW in hot adjustment

OC277-38

Image 38
Contents Contents OC277-1Features OC277-2Improving Efficiency of Piping Work Easy Maintenance no Maintenance Necessary for 2500 HoursOC277-3 Part Names and Functions OC277-4Remote controller operation buttons OC277-5Remote controller display OC277-6Models PCH24GK, PCH30GK, PCH36GK, PCH42GK SpecificationsOC277-7 Models PCH24GK, PCH30GK, PCH36GK, PCH42GK Performance Data DataOC277-8 CFM SHC TPCOC277-9 CFMOC277-10 Performance CurveOC277-11 PCH36GK Cooling Capacity PCH36GK Heating CapacityOC277-12 Condensing Pressure and Suction PressureOC277-13 PCH30GKOC277-14 PCH36GKOC277-15 PCH42GKSHF PCH24GK PCH30GK PCH36GK PCH42GK OC277-16Standard Operation Data Outlet AIR Speed and Coverage Range OC277-17Operating Range Additional Refrigerant Charge R22ozPCH30GK OC277-18Noise Criterion Curves PCH24GK PCH36GK PCH42GKIndoor unit PCH24GK Outlines and DimensionsOC277-19 OC277-20 Indoor unit PCH30/36/42GKOC277-21 Refrigerant System DiagramRemote controller PCH30GK PCH36GK PCH42GKOC277-22 Wiring DiagramModel PCH24/30/36/42GK Wiring Diagram Main Operation Operation FLOW-CHARTOC277-23 OC277-24 Cooling OperationDRY OC277-25DRY Operation YESOC277-26 Heating OperationOutline of Microprocessor Control Microprocessor ControlOC277-27 Indoor Unit Control How to operateOC277-28 Compressor controlCoil frost protection OC277-29Start condition Termination conditionsSwing OC277-30Auto vane control Auto ReturnRange a Range B Range C OC277-31Detecting abnormalities in the outdoor unit DRY operation DRY operation time chart How to operateOC277-32 OC277-33 Heat operation Heat operation time chartOC277-34 Display in Heat operationBooster heater control OC277-35Overheat protection Overheat preventionDefrosting operation Indoor coil temperature abnormality detectionOC277-36 Temperature range Initial mode How to operateMode change OC277-37Auto return OC277-38COOL/DRY operation OC277-39 Timer operationTimer function Test run Before test runBefore emergency operation OC277-40Emergency operation OC277-41 Dip switch functionsOn remote controller board On indoor controller boardPCH24GK PCH30GK PCH36GK PCH42GK SW7 OFF Fan motor max. rotational frequency Service RefOC277-42 PCH36, 42GKOC277-43 Trouble ShootingRemote Controller Display Abnormality OC277-44 When malfunction occurs during operationFor group control using one remote controller Example Check Unit code addressOC277-45 Cool Wrong Wiring on SiteOC277-46 HeatOC277-47 Other Troubles and CausesPCH How to check the partsOC277-48 OC277-49 Variety of System Control Functions System ControlOC277-50 PAC-SA89TA-EHow to set unit-address Group Control with a Single Remote ControllerHow to wire OC277-51How to set SW17-7 See Figure Control Using TWO Remote ControllersRemote ON-OFF and Individual Remote Controls Remote controller LCD indicationSwitch function of remote ON-OFF switch Individual Control by Grouping the Remote ControllersBasic wiring OC277-53OC277-54 Multiple Remote Control DisplayTimer Operation or the Operation by AN External Signal Auto Restart FunctionOC277-55 Disassembly ProcedurePCH24GK Operating Procedure Removing the air intake grilleRemoving the sirocco fan OC277-56Removing the fan motor Removing the side panelRemoving the vane motor Operating Procedure PhotosOC277-57 Removing the Indoor coil thermistorRemoving the guide vane OC277-58Removing the drain pan Remove the intake grilleRemoving the heat exchanger OC277-59Removing the support heater Structural Part PCH24GK Parts ListOC277-60 OC277-61 OC277-62 Structural Part PCH30GK PCH36GK PCH42GKOC277-63 OC277-64 FAN and Heater Parts PCH24GKOC277-65 FAN and Heater Parts PCH30GK PCH36GK PCH42GKOC277-66 Electrical Parts PCH24GK10 PCH30GK PCH36GK PCH42GKOC277-67 TimerOptional Parts Names and functions PAC-SC32PTA Weekly Timer Setting DisplayOC277-68 SET Back DisplayOC277-69 Timer AdapterMultiple Remote Controller Adapter Refrigerant PipesSpecifications are subject to change without notice