New PCH series models have 1 air outlet (auto vane switching of horizontal air flow / down flow by switched by auto vane)
instead of 2 (horizontal,and down flows).
2. EASY TO CLEAN ; FLOCKLESS VANE
With our original air current control mechanism, a flockless vane is
newly adapted.
The flockless vane prevents the condensation on the vane.
By changing the vane to the flockless type, the unit can be cleaned
much easier with mild household detergent.
3. NEW MATERIALS FOR BETTER OIL RESISTANCE
We have changed the materials of grill, filer, fan and fan casing from ABS to P.P. (polypropylene) for better oil
resistance. As a result, oil crazing is cut in half.
4. SIMPLIFIED INSTALLATION WORK (DIRECT SUSPENDING METHOD)
Simplified the installation work by changing the suspending method to the direct suspending method (suspending
the unit directly from the suspension fixture).
In this way, the unit can be attached to the suspension fixture without removing the installation parts off (Only the
side cover is removed). This method is much simpler than the “One-time installation method”.
OC277-2
5. IMPROVING EFFICIENCY OF PIPING WORK
Back panel
U-cut
Side panel
L : Liquid pipe
G : Gas pipe
D : Drain pipe
L
L
G
D
D
G
open
open
11
Removed the knockout work by separating the piping
space from the air outlet for efficiency of the piping work.
22
Improved the flexibility by making it possible for
drainage pipe to exit not only from the right side
back but also from the left side back.
Rubber plug
Insulation cover
(attached)
Drain pipe
(purchased locally)
w Knockout work is needed for the top part. When option-
al drain-up machine is installed, the refrigerant pipe
Drain pan
Joint coupliy
(attached)
Insulation
cover
Band
(attached)
w Please move the rubber plug for the unit to the right joint
when drainage pipe exits from the left side.
exits out from the top.
6. EASY MAINTENANCE ; NO MAINTENANCE NECESSARY FOR 2500 HOURS
The new long-life air filter can be used continuously 2500 hours without maintenance (at general office situation).
7. STABLE COOLING EVEN AT OUTDOOR TEMPERATURES AS LOW AS 23˚F MAKES
YEAR-ROUND AIR-CONDITIONING POSSIBLE
The microprocessor automatically adjusts fan speed in accordance with outdoor temperature to maintain the coolant at an
even condensing temperature. The result is smooth, efficient cooling even when temperatures outdoors drop as low as 23˚F.
This makes the unit ideal for a wide range of specialised cooling needs, such as rooms with many office machines or computers and areas subject to strong sunlight.
OC277-3
2
Air outlet
Intake grille
Air intake
Left/right guide vanes
Change the direction of airflow
from the horizontal blower.
Long-life fillter
Removes dust and foreigh matter from air coming in
through the grille (Recommended cleaning interval :
Approx, every 2,500 operating hours)
Up/down guide vanes
Change the direction of airflow from the
vartical blower.
PART NAMES AND FUNCTIONS
● Indoor (Main) Unit
OC277-4
TIMER OFF TIMER
CHECK SET TEMP.
DRY COOL
AUTO
HEAT
CLOCK AUTO AUTO
START STOP
MODE TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER
CHECK
TEST RUN
AIR SWEEP
SET TEMP. TIMER SET
F
FAN
SPEED
AUTO
RETURN
REMOTE CONTROLLER
Remote controller
Once the controls are set, the same operation mode can be repeated by simply pressing the
ON / OFF button.
Remote controller operation buttons
TIMER ON/OFF button
This switches between continuous
operation and the timer operation.
OPERATION MODE
button
Press this button to switch the cooling, electronic dry (Dehumidify),
automatic and heating modes.
SET TEMPERATURE
button
This sets the room temperature.
The temperature setting can be performed in 2˚F units.
Setting range :
Cooling 65˚F to 87˚F
Heating 61˚F to 83˚F
CLOCK/TIMER button
This sets or switches the current
time,start time and stop time.
FAN SPEED button
This sets the ventilation fan speed.
ON/OFF button
This switches between the operation and stop modes each time it is
press. The lamp on this button
lights during operation.
AIR DISCHARGE
button
This adjusts the vertical angle of the
ventilation.
FILTER button
This resets the filter service indication display.
AIR SWEEP button
This switches the horizontal fan
motion (Swing louver) ON and OFF.
OC277-5
CHECK-TEST RUN button
Only press this button to perform an
inspection check or test operation.
Do not use it for normal operation.
F
F
Remote controller display
CENTRALLY
CONTROLLED display
This indicates when the unit is con-
trolled by optional features such as
central control type remote controller.
TIMER display
This indicates when the continuous
operation and time operation modes
are set.
It also display the time for the timer
operation at the same time as when
it is set.
OPERATION MODE display
This indicates the operation mode.
STANDBY display
This indicates when the standby
mode is set from the time the heat
operation starts until the heating air
is discharged.
CLOCK display
The current time , start time and stop
time can be displayed in ten second
intervals by pressing the time switch
button. The start time or stop time is
always displayed during the timer
operation.
TIMER OFF TIMER
DRY COOL
AUTO
HEAT
MODE TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER
REMOTE CONTROLLER
CLOCK AUTO AUTO
CHECK SET TEMP.
START STOP
SET TEMP. TIMER SET
FAN
SPEED
RETURN
In this display example on the bottom left, a condition where all display lamps light is shown for
explanation purposes although this differs from
actual operation.
AIR DISCHARGE display
This displays the air direction.
FAN SPEED display
The selected fan speed is displayed.
display
AUTO
F
AIR SWEEP
CHECK
TEST RUN
The temperature of the return air is
displayed during operation. The display range is 47°F to 97°F. The display flashes 47°F when the actual
temperature is less than 47°F and
flashes 97°F when the actual temperature is greater than 97°F.
Operation lamp
This lamp lights during operation,
goes off when the unit stops and
flashes when a malfunction occurs.
DEFROST display
This indicates when the defrost oper-
ation is performed.
CHECK display
This indicates when a malfunction
has occurred in the unit which should
be checked.
display
This displays the selected setting
temperature.
display
This lamp lights when electricity is
supplied to the unit.
CHECK MODE
TEST RUN
This display lights in the check mode
or when a test operation is performed.
FILTER
This lamp lights when the filter needs
to be cleaned.
display
display
Caution
● Only the display lights when the unit is stopped and power supplied to the unit.
● When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a malfunction.
●When the central control remote control unit, which is sold separately, is used the ON-OFF button,OPERA TION MODE button and SET
TEMP. button do not operate.
OC277-6
SPECIFICATIONS3
Capacity
Moisture removal
Power
Consumption
EER
SEER
HSPF
COP
INDOOR UNIT MODELS
External finish
Power supply
Max.fuse size (time delay)
Min.ampacity
Fan motor
Booster heater
Airflow Hi-Lo
Sound level Hi-Lo
Unit drain pipe O.D. (On a local side)
Dimensions
Weight
OUTDOOR UNIT MODELS
External finish
Power supply
Max.fuse size (time delay)
Min.ampacity
Fan motor
Compressor
Crankcase heater
Refrigerant control
Defrost method
Sound level
Dimensions
Weight
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection
method
Between the indoor
& outdoor units
Cooling *1
Heating *1
Heating *2
Cooling *1
Heating *1
Heating *2
*1
*1
*2
Dry
Wet
W
D
H
Model (type)
W
D
H
Liquid
Gas
Indoors
Outdoors
Height difference
Piping length
Air flow should be set at HI.
A point on the curve shows the reference point.
< Cooling mode>
PCH42GK
PCH42GK
Data is based on the condition under outdoor humidity 75%.
A point on the curve shows the reference point.
< Heating mode>
PCH42GK
OC277-15
PCH42GK
4. STANDARD OPERATION DATA
Models
Item
Electrical circuitRefrigerant circuitIndoor sideOutdoor side
Voltage
Frequency
Total input
Indoor fan current
Booster heater current
Outdoor fan current
Comp. current
Condensing pressure
Suction pressure
Discharge temperature
Condensing temperature
Suction temperature
Comp.shell bottom temperature
Ref. pipe length
Refrigerant charge
Fan speed
Airflow (High)
Fan speed upper/lower
Airflow
Unit
V
Hz
kW
A
A
A
A
psi.G
psi.G
˚F
˚F
˚F
˚F
ft
˚F
˚F
˚F
˚F
r.p.m.
CFM
˚F
˚F
r.p.m.
CFM
Btu/h
208/230
2.51
1.1
0.65+0.65
11.3/10.4
242
82
161
115
48
144
80
67
59
58
1,100
810
95
24,000
0.79
60
Cooling
208/230
2.46
1.1
9.8/10.8
0.65+0.65
10.9/10.2
227
62
155
111
35
132
70
60
100
1,070
880
47
43
27,000
Heating
PCH24GK
208/230
3.23
1.3
0.75+0.75
14.5/13.3
250
85
164
115
53
156
80
67
60
59
1,190
1,130
95
30,000
0.84
60
Cooling
208/230
3.00
1.3
10.8/12.0
0.75+0.75
13.4/12.5
221
59
155
108
34
145
70
60
96
1,150
1,240
47
43
33,000
Heating
PCH30GK
208/230
3.60
1.3
0.75+0.75
16.51/15.1
253
82
164
117
50
153
80
67
57
56
1,220
1,130
95
35,400
0.80
60
Cooling
208/230
3.32
1.3
10.8/12.0
0.75+0.75
15.0/14.0
225
62
155
109
35
138
70
60
101
1,200
1,240
47
43
38,000
Heating
PCH36GK
208/230
4.10
1.3
0.8+0.8
18.8/17.3
272
76
173
122
46
119
80
67
56
55
1,220
1,130
95
42,000
0.73
60
25
9 lbs 15 oz
750/750
3,170
760/760
3,350
760/760
3,350
840/840
3,530
25
10 lbs 2 oz
25
10 lbs 9 oz
25
11 lbs 0 oz
Cooling
208/230
3.76
1.3
10.8/12.0
0.8+0.8
17.2/16.0
246
59
153
115
33
87
70
60
105
1,200
1,240
47
43
45,000
Heating
PCH42GK
Intake
air temperature
Discharge
air temperature
Intake
air temperature
Capacity
SHF
D.B.
W.B.
D.B.
W.B.
D.B.
W.B.
OC277-16
5. OPERATING RANGE
1) POWER SUPPLY
1 Phase 60Hz 208/230V
Guaranteed voltage range
2) OPERATION
Min.Max.
198V208V230V253V
Function
Cooling
Heating
Air intake temperature
Condition
Standard temperature
Maximum temperature
Minimum temperature
Maximum humidity
Standard temperature
Maximum temperature
Minimum temperature
D.B.(˚F
80
95
67
80
70
80
70
Indoor
)
W.B.(˚F
6. OUTLET AIR SPEED AND COVERAGE RANGE
Model
PCH24GK
PCH30GK
PCH36GK
Airflow
(
CFM
880
1,240
1,240
)
Air speed
(
)
ft/sec
13.5
14.8
14.8
Coverage
range(ft
40
50
50
)
Outdoor
D.B.(˚F
95
115
23
80
47
75
17
)
W.B.(˚F
)
67
71
57
75
60
67
60
The air coverage range is the value up to the position
where the air speed is 0.8ft/sec. when air is blown out
horizontally from the unit at the High notch position.
The coverage range should be used only as a general
guideline since it varies according to the size of the
room and furniture installed inside the room.
)
75
—
—
75
43
65
15
PCH42GK
1,240
14.8
50
7. ADDITIONAL REFRIGERANT CHARGE (R22(oz))
Refrigerant piping length (one way)
100ft
85ft
70ft
55ft
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Model
PCH24GK
PCH30GK
PCH36GK
PCH42GK
Outdoor unit
precharged
(
up to 100ft
9 lbs 15 oz
10 lbs 2 oz
10 lbs 9 oz
11 lbs 0 oz
)
25ft
0
0
0
0
40ft
0
0
0
0
OC277-17
115ft
2
5
5
5
130ft
4
10
10
10
150ft
7
16
16
16
164ft
9
20
20
20
8. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10
63125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
PCH24GK
Hi
Lo
NOTCH
48
42
SPL(db)
LINE
90
80
70
60
50
40
30
20
10
63125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
PCH30GK
PCH36GK
PCH42GK
Hi
Lo
NOTCH
51
45
SPL(db)
LINE
3.3ft
3.3ft
unit
about 4.62ft
MICROPHONE
ceiling
Ambient temperature 80˚F
Test conditions are based on JIS Z8731