Mitsubishi Electric PUHZ-SW75VAA-SC User manual

SERVICE MANUAL
No. OCH651
REVISED EDITION-A
R410A
August 2017
Revision:
• Added
PUHZ-SW75VAA-SC.UK and
PUHZ-SW75YAA-SC.UK
in REVISED EDITION-A.
• Some descriptions have
been modified.
PARTS CATALOG (OCB651)
[Model Name]
PUHZ-SHW80VAA
PUHZ-SHW112VAA
PUHZ-SHW80YAA
PUHZ-SHW112YAA
PUHZ-SW75VAA
PUHZ-SW100VAA
PUHZ-SW75YAA
PUHZ-SW100YAA
PUHZ-SW75VAA-SC
PUHZ-SW75YAA-SC
Salt proof model
PUHZ-SHW80VAA-BS
PUHZ-SHW112VAA-BS
PUHZ-SHW80YAA-BS
PUHZ-SHW112YAA-BS
PUHZ-SW75VAA-BS
PUHZ-SW100VAA-BS
PUHZ-SW75YAA-BS
PUHZ-SW100YAA-BS
CONTENTS
1. REFERENCE MANUAL································ 2
2. SAFETY PRECAUTION ······························· 3
3. SPECIFICATIONS ········································ 7
4. DATA··························································· 10
5. OUTLINES AND DIMENSIONS·················· 12
6. WIRING DIAGRAM····································· 13
7. WIRING SPECIFICATIONS ························ 17
8. REFRIGERANT SYSTEM DIAGRAM ········ 18
9. TROUBLESHOOTING································ 21
10. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ···· 60
11. DISASSEMBLY PROCEDURE··················· 66
Note:
• This manual describes
service data of the outdoor
units only.
• OCH651 is void.
AIR TO WATER HEAT PUMP UNITS
[Service Ref.]
PUHZ-SHW80VAA.UK
PUHZ-SHW112VAA.UK
PUHZ-SHW80YAA.UK
PUHZ-SHW112YAA.UK
PUHZ-SW75VAA.UK
PUHZ-SW100VAA.UK
PUHZ-SW75YAA.UK
PUHZ-SW100YAA.UK
PUHZ-SW75VAA-SC.UK
PUHZ-SW75YAA-SC.UK
PUHZ-SHW80VAA-BS.UK
PUHZ-SHW112VAA-BS.UK
PUHZ-SHW80YAA-BS.UK
PUHZ-SHW112YAA-BS.UK
PUHZ-SW75VAA-BS.UK
PUHZ-SW100VAA-BS.UK
PUHZ-SW75YAA-BS.UK
PUHZ-SW100YAA-BS.UK

2
OCH651A
INDOOR UNIT SERVICE MANUAL
1-1. FOR AIR TO WATER SYSTEM
Model name Service ref. Service
manual No.
EHST20C-VM6HB
EHST20C-YM9HB
EHST20C-TM9HB
EHST20C-VM2B
EHST20C-VM6B
EHST20C-YM9B
EHST20C-VM6EB
EHST20C-YM9EB
EHST20C-VM6SB
EHST20C-VM6HB.UK
EHST20C-YM9HB.UK
EHST20C-TM9HB.UK
EHST20C-VM2B.UK
EHST20C-VM6B.UK
EHST20C-YM9B.UK
EHST20C-VM6EB.UK
EHST20C-YM9EB.UK
EHST20C-VM6SB.UK
OCH531
OCB531
EHSC-VM2B
EHSC-VM6B
EHSC-YM9B
EHSC-TM9B
EHSC-VM6EB
EHSC-YM9EB
ERSC-VM2B
EHSC-VM2B.UK
EHSC-VM6B.UK
EHSC-YM9B.UK
EHSC-TM9B.UK
EHSC-VM6EB.UK
EHSC-YM9EB.UK
ERSC-VM2B.UK
OCH532
OCB532
EHSC-MEC
EHSC-VM2C
EHSC-VM2EC
EHSC-VM6C
EHSC-VM6EC
EHSC-YM9C
EHSC-YM9EC
EHSC-TM9C
EHSD-MC
EHSD-MEC
EHSD-VM2C
EHSD-YM9C
ERSC-MEC
ERSC-VM2C
ERSD-VM2C
EHSC-MECR2.UK
EHSC-VM2CR2.UK
EHSC-VM2ECR2.UK
EHSC-VM6CR2.UK
EHSC-VM6ECR2.UK
EHSC-YM9CR2.UK
EHSC-YM9ECR2.UK
EHSC-TM9CR2.UK
EHSD-MCR2.UK
EHSD-MECR2.UK
EHSD-VM2CR2.UK
EHSD-YM9CR2.UK
ERSC-MECR2.UK
ERSC-VM2CR2.UK
ERSD-VM2CR2.UK
OCH571
OCB571
EHST20C-VM2C
EHST20C-VM6C
EHST20C-YM9C
EHST20C-TM9C
EHST20C-VM2EC
EHST20C-VM6EC
EHST20C-YM9EC
EHST20C-MHCW
EHST20C-MEC
EHST20D-VM2C
EHST20D-VM2EC
EHST20D-YM9C
EHST20D-MHCW
EHST20D-MEC
EHST20D-MHC
ERST20C-VM2C
ERST20C-MEC
ERST20D-VM2C
ERST20D-MEC
EHST20C-VM2CR2.UK
EHST20C-VM6CR2.UK
EHST20C-YM9CR2.UK
EHST20C-TM9CR2.UK
EHST20C-VM2ECR2.UK
EHST20C-VM6ECR2.UK
EHST20C-YM9ECR2.UK
EHST20C-MHCWR2.UK
EHST20C-MECR2.UK
EHST20D-VM2CR2.UK
EHST20D-VM2ECR2.UK
EHST20D-YM9CR2.UK
EHST20D-MHCWR2.UK
EHST20D-MECR2.UK
EHST20D-MHCR2.UK
ERST20C-VM2CR2.UK
ERST20C-MECR2.UK
ERST20D-VM2CR2.UK
ERST20D-MECR2.UK
OCH570
OCB570
PAC-IF011B-E
PAC-IF032B-E
PAC-IF011B-E
PAC-IF032B-E OCB427
PAC-IF061B-E PAC-IF061B-ER2 OCB572
PAC-SIF051B-E PAC-SIF051B-ER2 OCB536
1REFERENCE MANUAL

3
OCH651A
2SAFETY PRECAUTION
2-2. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing refrigerant R410A
Use new refrigerant pipes.
Make sure that the inside and outside of refrige-
rant piping is clean and it has no contaminants
such as sulfur, oxides, dirt, shaving particles, etc,
which are hazard to refrigerant cycle.
In addition, use pipes with specified thickness.
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
In case of using the existing pipes for R22, be careful with
the following:
· Be sure to perform replacement operation before test run.
· Change flare nut to the one provided with this product.
Use a newly flared pipe.
· Avoid using thin pipes.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition change
may occur in refrigerant and the efficiency will be lowered.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil, etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
Contamination inside refrigerant piping can cause deterio-
ration of refrigerant oil, etc.
If large amount of mineral oil enters, that can cause deterio-
ration of refrigerant oil, etc.
Store the piping indoors, and both ends of the
piping sealed until just before brazing.
(Leave elbow joints, etc. in their packaging.)
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Use the specified refrigerant only.
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the
unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the
spec labels provided with our products.
We will not be held responsible for mechanical failure,
system malfunction, unit breakdown or accidents caused
by failure to follow the instructions.
Do not use refrigerant other than R410A.
If other refrigerant (R22, etc.) is used, chlorine in refrige-
rant can cause deterioration of refrigerant oil, etc.
2-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
Preparation before the repair service.
• Prepare the proper tools.
• Prepare the proper protectors.
• Provide adequate ventilation.
• After stopping the operation of the heat pump units, turn off the power-supply breaker.
• Discharge the condenser before the work involving the electric parts.
Precautions during the repair service.
• Do not perform the work involving the electric parts with wet hands.
• Do not pour water into the electric parts.
• Do not touch the refrigerant.
• Do not touch the hot or cold areas in the refrigerating cycle.
• When the repair or the inspection of the circuit needs to be done without turning off the power,
exercise great caution not to touch the live parts.

4
OCH651A
Electronic weighing scale
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) If moisture or foreign matter might have entered the refrigerant piping during service, ensure to remove them.
[2] Additional refrigerant charge
When charging directly from cylinder
(1) Check that cylinder for R410A on the market is a syphon type.
(2) Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
No. Tool name Specifications
1Gauge manifold
· Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3 MPa·G or over.
2Charge hose · Only for R410A
· Use pressure performance of 5.09 MPa·G or over.
3Electronic weighing scale —
4Gas leak detector · Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check · Attach on vacuum pump.
6Refrigerant charge base —
7Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
8Refrigerant recovery equipment —

5
OCH651A
2-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES
Flowchart
Perform the airtight test, vacuum air purging,
additional refrigerant charging (if necessary),
and gas leak check.
• Refer to the owchart below to determine if the existing pipes can be used and if it is necessary to use a lter dryer.
• If the diameter of the existing pipes is different from the specied diameter, refer to technological data materials to conrm if the pipes can be used.
▼
▼
▼
▼
▼
▼
Measure the existing pipe thickness and
check for damage.
The existing pipe thickness meets specica-
tions and the pipes are not damaged.
Check if the existing outdoor unit can operate.
After operating the cooling system for about 30
minutes, do a pump down work.
Disconnect the existing outdoor unit from the
pipes.
Attach the new outdoor unit
The existing pipes cannot be reused.
Use new pipes.
• If the existing outdoor unit cannot operate, use
a refrigerant recovery device to collect the refrigerant.
Use new pipes for SW75, SW100 and SW120 models.
The existing pipe thickness does not meet
specications or the pipes are damaged.
2-4. PRECAUTIONS FOR SALT PROOF TYPE "-BS" MODEL
Although "-BS" model has been designed to be resistant to salt damage, observe the following precautions to maintain the per-
formance of the unit.
(1) Avoid installing the unit in a location where it will be exposed directly to seawater or sea breeze.
(2) If the cover panel may become covered with salt, be sure to install the unit in a location where the salt will be washed away
by rainwater. (If a sunshade is installed, rainwater may not clean the panel.)
(3) To ensure that water does not collect in the base of the outdoor unit, make sure that the base is level, not at angle. Water
collecting in the base of the outdoor unit could cause rust.
(4) If the unit is installed in a coastal area, clean the unit with water regularly to remove any salt build-up.
(5) If the unit is damaged during installation or maintenance, be sure to repair it.
(6) Be sure to check the condition of the unit regularly.
(7) Be sure to install the unit in a location with good drainage.

6
OCH651A
Cautions for refrigerant piping work
New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same
as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working
pressure of R410A is 1.6 times higher than that of R22, their sizes of flared sections and flare nuts are different.
1 Thickness of pipes
Because the working pressure of R410A is higher compared to R22, be sure to use refrigerant piping with thickness
shown below. (Never use pipes of 0.7 mm or below.)
2 Dimensions of flare cutting and flare nut
The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that,
R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrig-
erants. Therefore, to enhance airtightness and strength, flare cutting dimension of copper pipe for R410A has been
specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R410A
also has partly been changed to increase strength as shown below. Set copper pipe correctly referring to copper pipe
flaring dimensions for R410A below. For 1/2 and 5/8 inch pipes, the dimension B changes.
Use torque wrench corresponding to each dimension.
3 Tools for R410A (The following table shows whether conventional tools can be used or not.)
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
0.8
0.8
0.8
1.0
—
0.8
0.8
0.8
1.0
1.0
Nominal
dimensions(inch)
Diagram below: Piping diameter and thickness
Outside
diameter (mm)
Thickness (mm)
R410A R22
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
9.1
13.2
16.6
19.7
—
9.0
13.0
16.2
19.4
23.3
Nominal
dimensions(in)
Flare cutting dimensions
Outside
diameter (mm)
Dimension A ( )
+0
-0.4
R410A R22
1/4
3/8
1/2
5/8
3/4
6.35
9.52
12.70
15.88
19.05
17.0
22.0
26.0
29.0
-
17.0
22.0
24.0
27.0
36.0
Nominal
dimensions(in)
Flare nut dimensions
Outside
diameter (mm)
Dimension B (mm)
R410A
*
* 36.0mm for
indoor unit
of RP100,
125 and 140
R22
(mm)
Gauge manifold
Charge hose
Gas leak detector
Refrigerant recovery equipment
Refrigerant cylinder
Applied oil
Safety charger
Charge valve
Vacuum pump
Flare tool
Bender
Pipe cutter
Welder and nitrogen gas cylinder
Refrigerant charging scale
Vacuum gauge or thermis-
tor vacuum gauge and
vacuum valve
Charging cylinder
Air purge, refrigerant charge
and operation check
Gas leak check
Refrigerant recovery
Refrigerant charge
Apply to flared section
Prevent compressor malfunction
when charging refrigerant by
spraying liquid refrigerant
Prevent gas from blowing out
when detaching charge hose
Vacuum drying and air
purge
Flaring work of piping
Bend the pipes
Cut the pipes
Weld the pipes
Charge refrigerant
Check the degree of vacuum. (Vacuum
valve prevents back flow of oil and refri-
gerant to thermistor vacuum gauge)
Refrigerant charge
Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Ester oil, ether oil and alky-
lbenzene oil (minimum amount)
Tool exclusive for R410A
Tool exclusive for R410A
Tools for other refrigerants can
be used if equipped with adap-
ter for reverse flow check
Tools for other refrigerants
can be used by adjusting
flaring dimension
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants
can be used
Tool exclusive for R410A
Tools and materials Use R410A tools Can R22 tools be used?
(Usable if equipped
with adapter for rever-
se flow)
(Usable by adjusting
flaring dimension)
Can R407C tools be used?
Ester oil, ether oil:
Alkylbenzene oil: minimum amount
(Usable if equipped
with adapter for rever-
se flow)
(Usable by adjusting
flaring dimension)
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
Dimension A
Dimension B

7
OCH651A
3SPECIFICATIONS
Service Ref. PUHZ-SHW80VAA(-BS).UK PUHZ-SHW80YAA(-BS).UK
OUTDOOR UNIT
Power source (Phase, cycle, voltage) Single 50 Hz, 230 V 3-Phase 50 Hz, 400 V
Max. current A 22.0 13.0
External nish Munsell: N8.75
Munsell N2.75 (FRONT PANEL)
Refrigerant control Linear Expansion Valve
Compressor Hermetic
Model DNK28FBAMT DNK28FBBMT
Motor output kW 2.2
Starter type Inverter
Protection devices HP switch, LP switch Discharge thermo,
Overcurrent detection, Comp. surface thermo
Crankcase heater W —
Heat exchanger Plate n coil
Fan Fan (drive) × No. Propeller fan x 1
Fan motor output kW 0.2
Air ow
K/min (CFM)
50 (1,760)
Defrost method Reverse cycle
Sound power level Heating dB 59 59
Dimensions W mm (inch) 1020 (40-3/16)
D mm (inch) 480 (18-7/8)
H mm (inch) 1050 (41-5/16)
Weight kg (lb) 116 (256) 128 (282)
Refrigerant R410A
Charge kg (lb) 4.6 (10.1)
Oil (Model) L 1.00 (FVC68D)
Refrigerant piping
Pipe size OD Liquid mm (inch) 9.52 (3/8)
Gas mm (inch) 15.88 (5/8)
Connection
method
Indoor side Flared
Outdoor side Flared
Between the
indoor & outdoor
Height difference Maximum 30 m
Piping length 2 to 75 m
Service Ref. PUHZ-SHW112VAA(-BS).UK PUHZ-SHW112YAA(-BS).UK
OUTDOOR UNIT
Power source (Phase, cycle, voltage) Single 50 Hz, 230 V 3-Phase 50 Hz, 400 V
Max. current A 28.0 13.0
External nish Munsell: N8.75
Munsell N2.75 (FRONT PANEL)
Refrigerant control Linear Expansion Valve
Compressor Hermetic
Model DNK28FBAMT DNK28FBBMT
Motor output kW 2.2
Starter type Inverter
Protection devices HP switch, LP switch Discharge thermo,
Overcurrent detection, Comp. surface thermo
Crankcase heater W —
Heat exchanger Plate n coil
Fan Fan (drive) × No. Propeller fan x 1
Fan motor output kW 0.2
Air ow
K/min (CFM)
50 (1,760)
Defrost method Reverse cycle
Sound power level Heating dB 60 60
Dimensions W mm (inch) 1020 (40-3/16)
D mm (inch) 480 (18-7/8)
H mm (inch) 1050 (41-5/16)
Weight kg (lb) 116 (256) 128 (282)
Refrigerant R410A
Charge kg (lb) 4.6 (10.1)
Oil (Model) L 1.00 (FVC68D)
Refrigerant piping
Pipe size OD Liquid mm (inch) 9.52 (3/8)
Gas mm (inch) 15.88 (5/8)
Connection
method
Indoor side Flared
Outdoor side Flared
Between the
indoor & outdoor
Height difference Maximum 30 m
Piping length 2 to 75 m

8
OCH651A
Service Ref. PUHZ-SW75VAA(-BS).UK PUHZ-SW75YAA(-BS).UK
OUTDOOR UNIT
Power source (Phase, cycle, voltage) Single, 50Hz, 230V 3-Phase 50 Hz, 400 V
Max. current A 22.0 11.5
External nish Munsell: N8.75
Munsell N2.75 (FRONT PANEL)
Refrigerant control Linear Expansion Valve
Compressor Hermetic
Model SNB220FEGMC-L1 SNB220FEAMC-L1
Motor output kW 1.5
Starter type Inverter
Protection devices HP switch, Comp. surface thermo
Discharge thermo, Over current detection
Crankcase heater W —
Heat exchanger Plate n coil
Fan Fan (drive) × No. Propeller fan x 1
Fan motor output kW 0.074
Air ow
K/min (CFM)
44(1,550)
Defrost method Reverse cycle
Sound power level Heating dB 58 58
Dimensions W mm (inch) 1020 (40-3/16)
D mm (inch) 480 (18-7/8)
H mm (inch) 1050 (41-5/16)
Weight kg (lb) 92 (203) 104 (229)
Refrigerant R410A
Charge kg (lb) 3.0 (6.6)
Oil (Model) L 0.60(FV50S)
Refrigerant piping
Pipe size OD Liquid mm (inch) 9.52(3/8)
Gas mm (inch) 15.88(5/8)
Connection
method
Indoor side Flared
Outdoor side Flared
Between the
indoor & outdoor
Height difference Maximum 30 m
Piping length 2 to 40 m
Service Ref. PUHZ-SW100VAA(-BS).UK PUHZ-SW100YAA(-BS).UK
OUTDOOR UNIT
Power source (Phase, cycle, voltage) Single, 50Hz, 230V 3-Phase 50 Hz, 400 V
Max. current A 28.0 13.0
External nish Munsell: N8.75
Munsell N2.75 (FRONT PANEL)
Refrigerant control Linear Expansion Valve
Compressor Hermetic
Model DNB28FBAMT DNB28FBBMT
Motor output kW 2.2
Starter type Inverter
Protection devices HP switch, LP switch, Comp. surface thermo
Discharge thermo, Over current detection
Crankcase heater W —
Heat exchanger Plate n coil
Fan Fan (drive) × No. Propeller fan x 1
Fan motor output kW 0.2
Air ow
K/min (CFM)
50 (1,760)
Defrost method Reverse cycle
Sound power level Heating dB 60 60
Dimensions W mm (inch) 1020 (40-3/16)
D mm (inch) 480 (18-7/8)
H mm (inch) 1050 (41-5/16)
Weight kg (lb) 114 (251) 126 (278)
Refrigerant R410A
Charge kg (lb) 4.2 (9.2)
Oil (Model) L 1.0 (FVC68D)
Refrigerant piping
Pipe size OD Liquid mm (inch) 9.52(3/8)
Gas mm (inch) 15.88(5/8)
Connection
method
Indoor side Flared
Outdoor side Flared
Between the
indoor & outdoor
Height difference Maximum 30 m
Piping length 2 to 75 m

9
OCH651A
Service Ref. PUHZ-SW75VAA-SC.UK PUHZ-SW75YAA-SC.UK
OUTDOOR UNIT
Power source (Phase, cycle, voltage) Single, 50Hz, 230V 3-Phase 50 Hz, 400 V
Max. current A 22.0 11.5
External nish Munsell: N8.75
Munsell N2.75 (FRONT PANEL)
Refrigerant control Linear Expansion Valve
Compressor Hermetic
Model SNB220FEGMC-L1 SNB220FEAMC-L1
Motor output kW 1.5
Starter type Inverter
Protection devices HP switch, Comp. surface thermo
Discharge thermo, Over current detection
Crankcase heater W —
Heat exchanger Plate n coil
Fan Fan (drive) × No. Propeller fan x 1
Fan motor output kW 0.074
Air ow
K/min (CFM)
44(1,550)
Defrost method Reverse cycle
Sound power level Heating dB 58 58
Dimensions W mm (inch) 1020 (40-3/16)
D mm (inch) 480 (18-7/8)
H mm (inch) 1050 (41-5/16)
Weight kg (lb) 92 (203) 104 (229)
Refrigerant R410A
Charge kg (lb) 2.9(6.29)
Oil (Model) L 0.60(FV50S)
Refrigerant piping
Pipe size OD Liquid mm (inch) 9.52(3/8)
Gas mm (inch) 15.88(5/8)
Connection
method
Indoor side Flared
Outdoor side Flared
Between the
indoor & outdoor
Height difference Maximum 30 m
Piping length 2 to 40 m

10
OCH651A
4DATA
4-1. REFILLING REFRIGERANT CHARGE (R410A: kg)
4-2. COMPRESSOR TECHNICAL DATA
Additional charge is required for pipes longer than
30 m (SHW80/SHW112) and 10 m (SW75/SW100).
Service Ref. Piping length (one way) Initial
charged
10 m 20 m 30 m 40 m 50 m 60 m 75 m
PUHZ-SHW80VAA(-BS).UK
PUHZ-SHW112VAA(-BS).UK
PUHZ-SHW80YAA(-BS).UK
PUHZ-SHW112YAA(-BS).UK
4.6 4.6 4.6 5.2 5.6 5.8 6.0 4.6
PUHZ-SW75VAA(-BS).UK
PUHZ-SW75YAA(-BS).UK 3.0 3.6 4.2 4.8 ———3.0
PUHZ-SW75VAA-SC.UK
PUHZ-SW75YAA-SC.UK 2.9 3.5 4.1 4.7 ———2.9
PUHZ-SW100VAA(-BS).UK
PUHZ-SW100YAA(-BS).UK 4.2 4.4 4.6 5.2 5.6 5.8 6.0 4.2
Service Ref.
PUHZ-SHW80VAA(-BS).UK
PUHZ-SHW112VAA(-BS).UK
PUHZ-SHW80YAA(-BS).UK
PUHZ-SHW112YAA(-BS).UK
PUHZ-SW75VAA(-BS).UK
PUHZ-SW75VAA-SC.UK
PUHZ-SW75YAA(-BS).UK
PUHZ-SW75YAA-SC.UK
Compressor model DNK28FBAMT DNK28FBBMT SNB220FEGMC-L1 SNB220FEAMC-L1
Winding
Resistance (Ω)
U-V 0.74 0.94 0.95 1.65
U-W 0.74 0.94 0.95 1.65
W-V 0.74 0.94 0.95 1.65
(at 20:)
Service Ref. PUHZ-SW100VAA(-BS).UK PUHZ-SW100YAA(-BS).UK
Compressor model DNB28FBAMT DNB28FBBMT
Winding
Resistance (Ω)
U-V 0.74 0.94
U-W 0.74 0.94
W-V 0.74 0.94