OC277-18, PCH36GK PCH42GK | Mitsubishi Electronics PCH30GK, PCH24GK

8. NOISE CRITERION CURVES
PCH24GK						NOTCH SPL(db)		LINE	PCH30GK						NOTCH SPL(db)		LINE
						Hi	48		PCH36GK						Hi	51
						Lo	42		PCH42GK						Lo	45
BAR	90								BAR	90
BAR									BAR
0.0002MICRO	70								0.0002MICRO	70
	80									80
dB re								NC-70	dB re								NC-70
dB re	60								dB re	60
LEVEL,	60								LEVEL,	60
LEVEL,								NC-60	LEVEL,								NC-60
PRESSURE	50								PRESSURE	50
PRESSURE								NC-50	PRESSURE								NC-50
								NC-50									NC-50
	40									40
SOUND								NC-40	SOUND								NC-40
SOUND	30								SOUND	30
	30									30
BAND								NC-30	BAND								NC-30
BAND	20	APPROXIMATE							BAND	20	APPROXIMATE
OCTAVE	20	THRESHOLD OF							OCTAVE	20	THRESHOLD OF
OCTAVE		HEARING FOR						NC-20	OCTAVE		HEARING FOR						NC-20
		CONTINUOUS						NC-20			CONTINUOUS						NC-20
		CONTINUOUS									CONTINUOUS
	10	NOISE								10	NOISE
	10	63	125	250	500	1000 2000 4000 8000				10	63	125	250	500	1000 2000 4000 8000
		63	125	250	500	1000 2000 4000 8000					63	125	250	500	1000 2000 4000 8000
			BAND CENTER FREQUENCIES, Hz									BAND CENTER FREQUENCIES, Hz

3.3ft	ceiling
3.3ft
3.3ft	unit
about 4.62ft
MICROPHONE
Ambient temperature 80˚F
Test conditions are based on JIS Z8731

OC277-18

Page 18

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Mitsubishi Electronics PCH30GK OC277-18, Noise Criterion Curves PCH24GK, PCH36GK PCH42GK, Band Center FREQUENCIES, Hz

Contents

Contents OC277-1 Features OC277-2 Easy Maintenance no Maintenance Necessary for 2500 Hours OC277-3Improving Efficiency of Piping Work Part Names and Functions OC277-4 Remote controller operation buttons OC277-5 Remote controller display OC277-6 Specifications OC277-7Models PCH24GK, PCH30GK, PCH36GK, PCH42GK Models PCH24GK, PCH30GK, PCH36GK, PCH42GK Performance Data DataOC277-8 CFM SHC TPC OC277-9 CFM OC277-10 Performance Curve OC277-11 PCH36GK Cooling Capacity PCH36GK Heating Capacity OC277-12 Condensing Pressure and Suction Pressure OC277-13 PCH30GK OC277-14 PCH36GK OC277-15 PCH42GK OC277-16 Standard Operation DataSHF PCH24GK PCH30GK PCH36GK PCH42GK Outlet AIR Speed and Coverage Range OC277-17Operating Range Additional Refrigerant Charge R22oz PCH30GK OC277-18Noise Criterion Curves PCH24GK PCH36GK PCH42GK Outlines and Dimensions OC277-19Indoor unit PCH24GK OC277-20 Indoor unit PCH30/36/42GK OC277-21 Refrigerant System DiagramRemote controller PCH30GK PCH36GK PCH42GK Wiring Diagram Model PCH24/30/36/42GK Wiring DiagramOC277-22 Operation FLOW-CHART OC277-23Main Operation OC277-24 Cooling Operation DRY OC277-25DRY Operation YES OC277-26 Heating Operation Microprocessor Control OC277-27Outline of Microprocessor Control Indoor Unit Control How to operateOC277-28 Compressor control Coil frost protection OC277-29Start condition Termination conditions Swing OC277-30Auto vane control Auto Return OC277-31 Detecting abnormalities in the outdoor unitRange a Range B Range C DRY operation time chart How to operate OC277-32DRY operation OC277-33 Heat operation Heat operation time chartOC277-34 Display in Heat operation Booster heater control OC277-35Overheat protection Overheat prevention Indoor coil temperature abnormality detection OC277-36Defrosting operation Temperature range Initial mode How to operateMode change OC277-37 OC277-38 COOL/DRY operationAuto return OC277-39 Timer operationTimer function Test run Before test run OC277-40 Emergency operationBefore emergency operation OC277-41 Dip switch functionsOn remote controller board On indoor controller board PCH24GK PCH30GK PCH36GK PCH42GK SW7 OFF Fan motor max. rotational frequency Service RefOC277-42 PCH36, 42GK Trouble Shooting Remote Controller Display AbnormalityOC277-43 OC277-44 When malfunction occurs during operationFor group control using one remote controller Example Check Unit code address OC277-45 Cool Wrong Wiring on SiteOC277-46 Heat OC277-47 Other Troubles and Causes How to check the parts OC277-48PCH OC277-49 Variety of System Control Functions System ControlOC277-50 PAC-SA89TA-E How to set unit-address Group Control with a Single Remote ControllerHow to wire OC277-51 How to set SW17-7 See Figure Control Using TWO Remote ControllersRemote ON-OFF and Individual Remote Controls Remote controller LCD indication Switch function of remote ON-OFF switch Individual Control by Grouping the Remote ControllersBasic wiring OC277-53 OC277-54 Multiple Remote Control DisplayTimer Operation or the Operation by AN External Signal Auto Restart Function OC277-55 Disassembly ProcedurePCH24GK Operating Procedure Removing the air intake grille Removing the sirocco fan OC277-56Removing the fan motor Removing the side panel Removing the vane motor Operating Procedure PhotosOC277-57 Removing the Indoor coil thermistor Removing the guide vane OC277-58Removing the drain pan Remove the intake grille OC277-59 Removing the support heaterRemoving the heat exchanger Parts List OC277-60Structural Part PCH24GK OC277-61 OC277-62 Structural Part PCH30GK PCH36GK PCH42GK OC277-63 OC277-64 FAN and Heater Parts PCH24GK OC277-65 FAN and Heater Parts PCH30GK PCH36GK PCH42GK OC277-66 Electrical Parts PCH24GK10 PCH30GK PCH36GK PCH42GK Timer Optional PartsOC277-67 Names and functions PAC-SC32PTA Weekly Timer Setting DisplayOC277-68 SET Back Display OC277-69 Timer AdapterMultiple Remote Controller Adapter Refrigerant Pipes Specifications are subject to change without notice

8. NOISE CRITERION CURVES

PCH24GK

PCH30GK

PCH36GK

PCH42GK

BAND CENTER FREQUENCIES, Hz

OC277-18