Panasonic WH-SDC03E3E5 Series User manual

© Panasonic Appliances Air-Conditioning Malaysia
Sdn. Bhd. 2012. Unauthorized copying and distribution
is a violation of law.
Order No: PAPAMY1209153CE
Indoor Unit Outdoor Unit
WH-SDC03E3E5
WH-SDC05E3E5
WH-UD03EE5
WH-UD05EE5
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the products dealt with in this service information by anyone else could result in serious injury or death.

2
TABLE OF CONTENTS
1. Safety Precautions .............................................3
2. Specifications .....................................................5
2.1 WH-SDC03E3E5 WH-UD03EE5 ..................5
2.2 WH-SDC05E3E5 WH-UD05EE5 ..................8
3. Features.............................................................11
4. Location of Controls and Components..........12
4.1 Indoor Unit ...................................................12
4.2 Outdoor Unit.................................................17
5. Dimensions .......................................................18
5.1 Indoor Unit ...................................................18
5.2 Outdoor Unit.................................................19
6. Refrigeration and Water Cycle Diagram ........20
7. Block Diagram ..................................................22
8. Wiring Connection Diagram ............................23
8.1 Indoor Unit ...................................................23
8.2 Outdoor Unit.................................................24
9. Electronic Circuit Diagram ..............................25
9.1 Indoor Unit ...................................................25
9.2 Outdoor Unit.................................................26
10. Printed Circuit Board .......................................27
10.1 Indoor Unit ...................................................27
10.2 Outdoor Unit.................................................29
11. Installation Instruction.....................................30
11.1 Select the Best Location ..............................30
11.2 Indoor/Outdoor Unit Installation Diagram ....30
11.3 Indoor Unit ...................................................31
11.4 Outdoor Unit.................................................36
12. Operation and Control .....................................39
12.1 Basic Function .............................................39
12.2 Water Pump .................................................52
12.3 Pump Down Operation ................................53
12.4 Flow Switch..................................................53
12.5 Force Heater Mode Operation .....................53
12.6 Indoor Unit Safety ........................................54
12.7 Auto Restart Control ....................................54
12.8 Indication Panel ...........................................54
12.9 Indoor Back-Up Heater Control ...................55
12.10Tank Booster Heater Control .......................55
12.11Base Pan Heater Control (Optional) ............56
12.12Three Way Valve Control.............................56
12.13Sterilization Mode ........................................57
12.14Quiet Operation............................................57
12.15Anti Freeze Control......................................57
12.16Solar Operation (Optional)...........................58
12.17External Room Thermostat Control
(Optional) .....................................................61
12.18Two Ways Valve Control .............................62
13. Protection Control............................................63
13.1 Protection Control for All Operations ...........63
13.2 Protection Control for Heating Operation ....65
13.3 Protection Control for Cooling Operation.....66
14. Servicing Mode ................................................ 67
14.1 How to Take Out Front Plate ...................... 67
14.2 How to Take Out Side Cabinet ................... 67
14.3 Test Run ..................................................... 67
14.4 Proper Pump Down Procedure................... 67
14.5 How to Adjust Water Flow Rate.................. 68
14.6 Expansion Vessel Pre Pressure
Checking ..................................................... 68
15. Maintenance Guide.......................................... 69
16. Troubleshooting Guide................................... 71
16.1 Refrigeration Cycle System ........................ 71
16.2 Relationship between the Condition of the
Air-to-Water Heatpump Indoor and Outdoor
Units and Pressure and Electric Current .... 72
16.3 Breakdown Self Diagnosis Function ........... 73
16.4 Error Codes Table....................................... 74
16.5 Self-diagnosis Method ................................ 76
17. Disassembly and Assembly Instructions ... 109
17.1 To Remove Front Plate............................. 109
17.2 To Remove Cabinet.................................. 109
17.3 To Remove Pressure Gauge .................... 110
17.4 To Remove Control Panel ........................ 110
17.5 To Remove RCCB .................................... 111
17.6 To Remove Transformer and Electronic
Controller Board........................................ 111
17.7 To Remove Pressure Relief Valve,
Flow Switch, Water Pump and Bottle
Complete................................................... 112
18. Technical Data ............................................... 114
18.1 Operation Characteristics ......................... 114
18.2 Heating Capacity Table............................. 122
18.3 Cooling Capacity Table............................. 122
18.4 Hydraulic Pump Performance................... 123
19. Exploded View and Replacement Parts
List .................................................................. 124
19.1 Indoor Unit ................................................ 124
19.2 Outdoor Unit.............................................. 126

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CAUTION
WARNING
WARNING
1. Safety Precautions
Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating and main
circuit for the model installed.
The caution items stated here must be followed because these important contents are related to safety. The
meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction
will cause harm or damage, and the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
The items to be followed are classified by the symbols:
Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation,
care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for
future reference.
1. Do not modify the machine, part, material during repairing service.
2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring unit.
3. Do not wrench the fasten terminal. Pull it out or insert it straightly.
4. Engage dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water leakage,
electrical shock or fire.
5. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.
6. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage,
refrigerant leakage, fire or electrical shock.
7. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done,
the set will drop and cause injury.
8. Do not install outdoor unit near handrail of veranda. When installing outdoor unit at veranda of high rise building, child may climb up
to outdoor unit and cross over the handrail and causing accident.
9. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single outlet
must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.
10. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone.
Otherwise, it may cause electric shock in case equipment breakdown or insulation breakdown.
11. Do not use joint cable for indoor/outdoor connection cable. Use specified indoor/outdoor connection cable, refer to Installation Instructions
CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that no external force
will be acted on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.
12. When install or relocate Air to Water Heatpump indoor/outdoor unit, do not let any substance other than the specified refrigerant, eg. air etc.
mix into refrigerant cycle (piping). Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
13. This is a R410A model. When connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause
abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A refrigerant.
Thickness of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm. It is desirable
that the amount of residual oil is less than 40 mg/10 m.
14. During installation, install the refrigerant piping properly before run the compressor. Operation of compressor without fixing refrigeration piping
and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
15. During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping while compressor is
operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion,
injury etc.
16. After completion of the installation servicing confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant
contacts with fire.
17. Ventilate the room if there is refrigerant gas leakage during operation. Extinguish all fire sources if present. It may cause toxic gas when the
refrigerant contacts with fire.
18. Only use the supplied or specified installation parts, else, it may cause unit vibrate loose, water/refrigerant leakage, electrical shock or fire.
This symbol denotes item that is PROHIBITED from doing.

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CAUTION
WARNING
19. The unit is only for use in a closed portable water system. Utilization in an open water circuit or non-portable water circuit, may lead to
excessive corrosion of the water piping and risk of incubating bacteria colonies, particularly Legionella, in water.
20. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
21. Do not dismantle refrigerant piping using pipe wrench. It might deform the piping and cause the unit to malfunction.
22. Select a location where in case of water leakage, the leakage will not cause damage to other properties.
23. Do not locally purchase electrical parts of the product for the purpose of installation, service, maintenance and etc. They might cause
electrical shock or fire.
24. Do not branch the power from terminal block to heater tape. Overloaded terminal block will cause electrical shock or fire.
25. Installation or servicing work. It may need two people to carry out the installation or servicing work.
26. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with other
electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
27. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may
break and cause refrigerant gas leakage.
1. Do not install the air-to-water heatpump indoor unit and outdoor unit at place where leakage of flammable gas may occur. In case
gas leaks and accumulates at surrounding of the unit, it may cause fire.
2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
3. It may need two persons to carry out the installation work. The weight of indoor/outdoor unit might cause injury if carried by one person.
4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.
5. Select an installation location which is easy for maintenance.
6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F - 70°F (30°C - 40°C) higher. Please use a
high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
Pb free solder will tend to splash when heated too high (about 1100°F/600°C).
7. Power supply connection to the indoor unit.
1. Power supply point should be in easily accessible place for power disconnection in case of emergency.
2. Must follow local national wiring standard, regulation and this installation instruction.
3. Strongly recommended to make permanent connection to a circuit breaker. It must be a double pole switch with a minimum 3.0mm gap.
- Use approved 30A circuit breaker for power supply 1
- Use approved 30A circuit breaker for power supply 2
- Use approved 15A/16A circuit breaker for power supply 3
8. Do not release refrigerant during piping work for installation, servicing, re-installation and during repairing a refrigeration parts. Take
care of the liquid refrigerant, it may cause frostbite.
9. Do not install this appliance in a laundry room or other high humidity location. This condition will cause rust and damage to the unit.
10. Make sure the insulation of power supply cord does not contact to hot part (i.e. refrigerant piping, water piping) to prevent from
insulation failure (melt).
11. Do not sit, step or place anything on the unit, you may fall down accidentally.
12. Do not touch the sharp aluminum fins or edges of metal parts.
If you are required to handle sharp parts during installation or servicing, please wear hand glove.
Sharp parts may cause injury.
13. After installation, check the water leakage condition in connection area during test run. If leakage occur, it will cause damage to other
properties.
14. The unit described in this manual is designed for use in a closed water system only. Utilization in an open water circuit may lead to
excessive corrosion of the water piping.

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2. Specifications
2.1 WH-SDC03E3E5 WH-UD03EE5
Item Unit Outdoor Unit
Performance Test Condition EN 14511
Condition
(Ambient/Water) A35W7
kW 3.20
BTU/h 10900
Cooling Capacity
kcal/h 2750
W/W 3.08
Cooling EER
kcal/hW 2.64
Condition
(Ambient/Water) A7W35 A2W35
kW 3.20 3.20
BTU/h 10900 10900
Heating Capacity
kcal/h 2750 2750
W/W 5.00 3.56
Heating COP
kcal/hW 4.30 3.06
Condition
(Ambient/Water) A35W7 A7W35 A2W35
dB (A) Cooling: 47 Heating: 47 —
Noise Level
Power Level dB Cooling: 65 Heating: 65 —
Air Flow m3/min (ft3/min) Cooling: 38.1 (1350)
Heating: 31.9 (1130)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3FV50S (450)
Refrigerant (R410A) kg (oz) 1.20 (42.4)
Height mm (inch) 622 (24-1/2)
Width mm (inch) 824 (32-15/32)
Dimension
Depth mm (inch) 298 (11-24/32)
Net Weight kg (lbs) 39 (86)
Liquid mm (inch) 6.35 (1/4) Pipe Diameter
Gas mm (inch) 12.70 (1/2)
Standard Length m (ft) 7 (23.0)
Pipe Length Range m (ft) 3 (9.8) ~ 15 (49.2)
I/D & O/D Height Difference m (ft) 5 (16.4)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Refrigeration Charge Less m (ft) 10 (32.8)
Type Hermetic Motor
Motor Type Brushless (4-poles)
Compressor
Rated Output kW 0.90
Type Propeller Fan
Material PP
Motor Type DC (8-poles)
Input Power W —
Output Power W 40
Fan
Fan Speed rpm Cooling: 950
Heating: 800
Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row × Stage × FPI 2 × 28 × 17
Heat Exchanger
Size (W × H × L) mm 36.4 × 588 × 827.7 : 856.3

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Item Unit
ø Single
V 230
Power Source (Phase, Voltage, Cycle)
Hz 50
Condition
(Ambient/Water) A35W7 A7W35 A2W35
Input Power
kW Cooling: 1.04 Heating: 0.64 Heating: 0.90
Maximum Input Power For Heatpump System kW 2.35
Power Supply 1 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) 1Ø / 11.0 / 2.35k
Power Supply 2 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) 1Ø / 26.0 / 6.00k
Power Supply 3 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) — / — / —
Starting Current A 3.0
Condition
(Ambient/Water) A35W7 A7W35 A2W35
Running Current
A Cooling: 4.8 Heating: 3.0 Heating: 4.2
Maximum Current For Heatpump System A 11.0
Power Factor
Power factor means total figure of compressor and
outdoor fan motor.
% Cooling: 94
Heating: 93
Number of core -
Power Cord
Length m (ft) -
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Indoor Unit
Performance Test Condition EN 14511
Outdoor Ambient °C Cooling: 16 ~ 43
Heating: -20 ~ 35
Operation Range
Water Outlet °C Cooling: 5 ~ 20
Heating: 25 ~ 55
Internal Pressure Differential kPa Cooling: 7.5
Heating: 7.5
Condition
(Ambient/Water) A35W7 A7W35 A2W35
dB (A) Cooling: 30 Heating: 30 —
Noise Level
Power Level dB Cooling: 43 Heating: 43 —
Height mm (inch) 892 (35-1/8)
Width mm (inch) 502 (19-3/4)
Dimension
Depth mm (inch) 353 (13-29/32)
Net Weight kg (lbs) 44 (97)
Liquid mm (inch) 6.35 (1/4)
Refrigerant Pipe Diameter
Gas mm (inch) 12.70 (1/2)
Inlet mm (inch) 28 (1-3/32)
Water Pipe Diameter
Outlet mm (inch) 28 (1-3/32)
Water Drain Hose Inner Diameter mm (inch) 15 (19/32)
Motor Type Capacitor Run Induction Motor (2.5 μF)
No. of Speed 3
Pump
Input Power W 25
Type Brazed Plate
No. of Plates 48
Size (W x H x L) mm 93 × 82 × 325
Hot Water Coil
Water Flow Rate l/min (m3/h) Cooling: 9.2 (0.6)
Heating: 9.2 (0.6)
Pressure Relief Valve Water Circuit kPa Open: 300, Close: 265 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)

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Item Unit Indoor Unit
Volume I 10
Expansion Vessel
MWP bar 3
Capacity of Integrated Electric Heater kW 3.00
Note:
Cooling capacities are based on outdoor air temperature of 35°C Dry Bulb with controlled indoor water inlet
temperature of 12°C and water outlet temperature of 7°C.
Heating capacities are based on outdoor air temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb
(42.8°F Wet Bulb) with controlled indoor water inlet temperature of 30°C and water outlet temperature of 35°C.
Specification are subjected to change without prior notice for further improvement.

8
2.2 WH-SDC05E3E5 WH-UD05EE5
Item Unit Outdoor Unit
Performance Test Condition EN 14511
Condition
(Ambient/Water) A35W7
kW 4.50
BTU/h 15300
Cooling Capacity
kcal/h 3870
W/W 2.69
Cooling EER
kcal/hW 2.32
Condition
(Ambient/Water) A7W35 A2W35
kW 5.00 4.20
BTU/h 17100 14300
Heating Capacity
kcal/h 4300 3610
W/W 4.63 3.11
Heating COP
kcal/hW 3.98 2.67
Condition
(Ambient/Water) A35W7 A7W35 A2W35
dB (A) Cooling: 48 Heating: 48 —
Noise Level
Power Level dB Cooling: 66 Heating: 66 —
Air Flow m3/min (ft3/min) Cooling: 39.3 (1390)
Heating: 34.4 (1310)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3FV50S (450)
Refrigerant (R410A) kg (oz) 1.20 (42.4)
Height mm (inch) 622 (24-1/2)
Width mm (inch) 824 (32-15/32)
Dimension
Depth mm (inch) 298 (11-24/32)
Net Weight kg (lbs) 39 (86)
Liquid mm (inch) 6.35 (1/4) Pipe Diameter
Gas mm (inch) 12.70 (1/2)
Standard Length m (ft) 7 (23.0)
Pipe Length Range m (ft) 3 (9.8) ~ 15 (49.2)
I/D & O/D Height Difference m (ft) 5 (16.4)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Refrigeration Charge Less m (ft) 10 (32.8)
Type Hermetic Motor
Motor Type Brushless (4-poles)
Compressor
Rated Output kW 0.90
Type Propeller Fan
Material PP
Motor Type DC (8-poles)
Input Power W —
Output Power W 40
Fan
Fan Speed rpm Cooling: 980
Heating: 860
Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row × Stage × FPI 2 × 28 × 17
Heat Exchanger
Size (W × H × L) mm 36.4 × 588 × 827.7 : 856.3

9
Item Unit
ø Single
V 230
Power Source (Phase, Voltage, Cycle)
Hz 50
Condition
(Ambient/Water) A35W7 A7W35 A2W35
Input Power
kW Cooling: 1.67 Heating: 1.08 Heating: 1.35
Maximum Input Power For Heatpump System kW 2.59
Power Supply 1 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) 1Ø / 12.0 / 2.59k
Power Supply 2 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) 1Ø / 26.0 / 6.00k
Power Supply 3 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) — / — / —
Starting Current A 5.0
Condition
(Ambient/Water) A35W7 A7W35 A2W35
Running Current
A Cooling: 7.6 Heating: 5.0 Heating: 6.2
Maximum Current For Heatpump System A 12.0
Power Factor
Power factor means total figure of compressor and
outdoor fan motor.
% A35W7
Cooling: 96
A7W35
Heating: 94
A2W35
Heating: 95
Number of core -
Power Cord
Length m (ft) -
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Indoor Unit
Performance Test Condition EN 14511
Outdoor Ambient °C Cooling: 16 ~ 43
Heating: -20 ~ 35
Operation Range
Water Outlet °C Cooling: 5 ~ 20
Heating: 25 ~ 55
Internal Pressure Differential kPa Cooling: 13.2
Heating: 15.8
Condition
(Ambient/Water) A35W7 A7W35 A2W35
dB (A) Cooling: 30 Heating: 30 —
Noise Level
Power Level dB Cooling: 43 Heating: 43 —
Height mm (inch) 892 (35-1/8)
Width mm (inch) 502 (19-3/4)
Dimension
Depth mm (inch) 353 (13-29/32)
Net Weight kg (lbs) 44 (97)
Liquid mm (inch) 6.35 (1/4)
Refrigerant Pipe Diameter
Gas mm (inch) 12.70 (1/2)
Inlet mm (inch) 28 (1-3/32)
Water Pipe Diameter
Outlet mm (inch) 28 (1-3/32)
Water Drain Hose Inner Diameter mm (inch) 15 (19/32)
Motor Type Capacitor Run Induction Motor (2.5 μF)
No. of Speed 3
Pump
Input Power W 29
Type Brazed Plate
No. of Plates 48
Size (W x H x L) mm 93 × 82 × 325
Hot Water Coil
Water Flow Rate l/min (m3/h) Cooling: 12.9 (0.8)
Heating: 14.3 (0.9)
Pressure Relief Valve Water Circuit kPa Open: 300, Close: 265 and below
Flow Switch Magnetic Lead Switch

10
Item Unit Indoor Unit
Protection Device A Residual Current Circuit Breaker (40)
Volume I 10
Expansion Vessel
MWP bar 3
Capacity of Integrated Electric Heater kW 3.00
Note:
Cooling capacities are based on outdoor air temperature of 35°C Dry Bulb with controlled indoor water inlet
temperature of 12°C and water outlet temperature of 7°C.
Heating capacities are based on outdoor air temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb
(42.8°F Wet Bulb) with controlled indoor water inlet temperature of 30°C and water outlet temperature of 35°C.
Specification are subjected to change without prior notice for further improvement.

11
3. Features
Inverter Technology
- Energy saving
High Efficiency
Compact Design
Environment Protection
- Non-ozone depletion substances refrigerant (R410A)
Long Installation Piping
- Long piping up to 15 meter with height difference 5 meter
- Flexible 4-way piping for outdoor unit
Easy to use control panel
Weekly Timer setting
Quality Improvement
- Random auto restart after power failure for safety restart operation
- Gas leakage protection
- Prevent compressor reverse cycle
- Inner protector to protect compressor
Serviceability Improvement
- Breakdown Self Diagnosis function
- System Status Check Buttons for servicing purpose
- System Pumpdown Button for servicing purpose
- Front maintenance design for outdoor unit
Operation Condition
Indoor Outdoor
Water outlet temperature (°C) Ambient temperature (°C)
Maximum 20 43
COOLING Minimum 5 16
Maximum 55 35
HEATING Minimum 25 -20
NOTICE : When the outdoor temperature is out of the above temperature range, the heating capacity will drop significantly
and outdoor unit might stop for protection control.

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4. Location of Controls and Components
4.1 Indoor Unit
4.1.1 Location of Control

13

14

15
4.1.2 Weekly Timer Setting

16
4.1.3 Setting Up the Special Functions

17
4.1.4 Main Components
4.2 Outdoor Unit

18
5. Dimensions
5.1 Indoor Unit

19
5.2 Outdoor Unit

20
6. Refrigeration and Water Cycle Diagram
Piping size
Model Gas Liquid
Rated
Length
(m)
Max
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Additional
Refrigerant
(g/m)
WH-S*03*
WH-U*03*
ø12.7mm
(1/2")
ø6.35mm
(1/4") 7 5 3 15 20
WH-S*05*
WH-U*05*
ø12.7mm
(1/2")
ø6.35mm
(1/4") 7 5 3 15 20
* If piping length is over common length, additional refrigerant should be added as shown in the table.