Panasonic S-80MW1E5 Service manual

ȖȯȠȘȕȥȦȟȝ
ǏǕǕǑǗǓǔǤ
PORTUGU S
NEDERLANDS
ITALIANO DEUTSCH ESPAÑOL FRANÇAIS ENGLISH
Air-to-Water Heatpump
■ R410A Models
Model No.
Indoor Units
Type Indoor Unit Type Rated Capacity
80 125
W1 Air-to-Water
S-80MW1E5 S-125MW1E5
ENGLISH
Read through the Installation Instructions before you proceed with the installation.
In particular, you will need to read under the “IMPORTANT!” section at the top of the page.
FRANÇAIS
Lisez les instructions d’installation avant de commencer l’installation.
En particulier, vous devez lire la section “IMPORTANT!” en haut de la plage.
ESPAÑOL
Lea las Instrucciones de instalación antes de proceder con la instalación del equipo.
En concreto, deberá leer detenidamente la sección “¡IMPORTANTE!” situada al principio de la página.
DEUTSCH
Lesen Sie die Einbauanleitung, bevor Sie mit der Installation beginnen.
Insbesondere die Hinweise im Abschnitt “WICHTIG!” oben auf der Seite müssen unbedingt gelesen werden.
ITALIANO
Leggere le Istruzioni di installazione prima di procedere con l’installazione.
Prestare particolare attenzione alla sezione “IMPORTANTE!” all’inizio della pagina.
NEDERLANDS
Lees de installatie-instructies zorgvuldig door voor u begint met de installatie.
U moet vooral het gedeelte waar “BELANGRIJK!” boven staat heel goed lezen.
PORTUGU S
Leia cuidadosamente as instruções de instalação antes de prosseguir com a instalação.
Em particular, é necessário ler as informações na secção “IMPORTANTE!” na parte superior da página.
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ȖȯȠȘȕȥȦȟȝ
ȤəɗɠɎɛɎɛɎɑɖɚɛəɜɓɟɑɑɛɎɐɉɑɖɚɛɉɔɑəɉɖɎɘəɎɍɑɍɉɘəɗɍɣɔɏɑɛɎɚɑɖɚɛɉɔɑəɉɖɎɛɗƔ
ȗɠɉɚɛɖɗɚɛƑɢɎɛəɨɊɋɉɍɉɘəɗɠɎɛɎɛɎəɉɐɍɎɔɉƤȗȕțȢȣƘơɋɌɗəɖɉɛɉɠɉɚɛɖɉɚɛəɉɖɑɟɉɛɉƔ
for Refrigerant R410A
INSTALLATION INSTRUCTIONS
F616843
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2
IMPORTANT!
Please Read Before Starting
This Air-to-Water must be installed by the sales dealer or
installer.
This information is provided for use only by authorized
persons.
Be sure to read the installation instructions relevant to
the VRF system connected to this Air-to-Water and all
appliances connected to the VRF system.
For safe installation and trouble-free operation, you must:
●Carefully read this instruction booklet before beginning.
●Follow each installation or repair step exactly as shown.
●This Air-to-Water shall be installed in accordance with
National Wiring Regulations.
●For water circuit installation work, follow to relevant
European and national regulations (including EN61770)
and local plumbing and building regulation.
●
The unit is only for use in a closed water system.
Utilization in an open water circuit may lead to excessive
corrosion of water piping and risk of incubating bacteria
colonies, particularly Legionella, in water.
●Pay close attention to all warning and caution notices
given in this manual.
WARNING
This symbol refers to a hazard or unsafe
practice which can result in severe
personal injury or death.
CAUTION
This symbol refers to a hazard or unsafe
practice which can result in personal injury
or product or property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including
failure to follow the instructions in this document.
WARNING
Do not modify the wiring of indoor/outdoor
unit for installation of other components
(i.e. heater, etc). Overloaded wiring or wire
connection points may cause electrical
shock or fire.
CAUTION
Do not apply excessive force to water
pipes that may damage the pipes. If water
leakage occurs, it will cause flooding and
damage to other properties.
Carry out drainage piping as mentioned in installation
instructions. If drainage is not perfect, water may enter the
room and damage the furniture.
SPECIAL PRECAUTIONS
WARNING When Wiring
ELECTRICAL SHOCK CAN
CAUSE SEVERE PERSONAL
INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD
ATTEMPT TO WIRE THIS
SYSTEM.
• Do not supply power to the unit until
all wiring and tubing are completed or
reconnected and checked.
• Highly dangerous electrical voltages are
used in this system.
Carefully refer to the wiring diagram and
these instructions when wiring. Improper
connections and inadequate grounding
can cause accidental injury or death.
• Connect all wiring tightly. Loose wiring
may cause overheating at connection
points and a possible fire hazard.
•Provide a power outlet to be used
exclusively for each unit.
•Provide a power outlet exclusively for
each unit, and full disconnection means
having a contact separation in all poles
must be incorporated in the fixed wiring
in accordance with the wiring rules.
•To prevent possible hazards from
insulation failure, the unit must be
grounded.
• This equipment is strongly recommended
to be installed with Earth Leakage
Circuit Breaker (ELCB) or Residual
Current Device (RCD). Otherwise, it may
cause electrical shock and fire in case
of equipment breakdown or insulation
breakdown.
When Transporting
Be careful when picking up and moving
the indoor and outdoor units. Get a partner
to help, and bend your knees when lifting
to reduce strain on your back. Sharp
edges or thin aluminum fins on the air
conditioner or Air-to-Water can cut your
fingers.
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3
ENGLISH
When Installing…
Select an installation location which is
rigid and strong enough to support or
hold the unit, and select a location for
easy maintenance.
…In a Room
Properly insulate any tubing run inside a
room to prevent “sweating” that can cause
dripping and water damage to walls and
floors.
CAUTION Keep the fire alarm and
the air outlet at least
1.5 m away from the unit.
…In Moist or Uneven Locations
Use a raised concrete pad or concrete
blocks to provide a solid, level foundation
for the outdoor unit. This prevents water
damage and abnormal vibration.
…In an Area with High Winds
Securely anchor the outdoor unit down
with bolts and a metal frame. Provide a
suitable air baffle.
…In a Snowy Area (for Heat Pump-
type Systems)
Install the outdoor unit on a raised
platform that is higher than drifting snow.
Provide snow vents.
…In laundry rooms
Do not install in laundry rooms. Indoor
unit is not drip proof.
When Connecting Refrigerant Tubing
Pay particular attention to refrigerant
leakages.
WARNING
WARNING
• When performing piping work, do not
mix air except for specified refrigerant
(R410A) in refrigeration cycle. It
causes capacity down, and risk of
explosion and injury due to high
tension inside the refrigerant cycle.
• If the refrigerant comes in contact
with a flame, it produces a toxic gas.
• Do not add or replace refrigerant
other than specified type. It may
cause product damage, burst and
injury, etc.
• Ventilate the room immediately, in the
event that is refrigerant gas leaks during
the installation. Be careful not to allow
contact of the refrigerant gas with a
flame as this will cause the generation
of toxic gas.
• Keep all tubing runs as short as
possible.
• Apply refrigerant lubricant to the
matching surfaces of the flare and union
tubes before connecting them, then
tighten the nut with a torque wrench for
a leak-free connection.
• Check carefully for leaks before starting
the test run.
• Do not leak refrigerant while piping work
for an installation or re-installation, and
while repairing refrigeration parts.
Handle liquid refrigerant carefully as it
may cause frostbite.
When Servicing
• Turn the power OFF at the main
power box (mains) before opening
the unit to check or repair electrical
parts and wiring.
• Keep your fingers and clothing away
from any moving parts.
• Clean up the site after you finish,
remembering to check that no metal
chips or bits of wiring have been left
inside the unit.
WARNING
WARNING
• This product must not be
modified or disassembled under
any circumstances. Modified or
disassembled unit may cause fire,
electric shock or injury.
• Do not clean inside the indoor and
outdoor units by users. Engage
authorized dealer or specialist for
cleaning.
• In case of malfunction of this
appliance, do not repair by yourself.
Contact the sales dealer or service
dealer for repair.
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4
IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED
This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere.
Refrigerant type: R410A
GWP(1) value: 1975
(1)GWP = global warming potential
Periodical inspections for refrigerant leaks may be required depending on European or local legislation.
Please contact your local dealer for more information.
Sample label: MF2 type outdoor unit
Please fill in with indelible ink,
■1the factory refrigerant charge of the product
■2the additional refrigerant amount charged in the field and
■1+ 2the total refrigerant charge
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product charging port (e.g. onto the inside of the service cover).
1
4
2
3
5 6
kg
kg
kg
* English text printed on this label is original. Each
language label will be sealed on this original text.
1. Factory refrigerant charge of the product: see unit name plate
2. Additional refrigerant amount charged in the field
3. Total refrigerant charge
4. Contains fluorinated greenhouse gases covered by the Kyoto Protocol
5. Outdoor unit
6. Refrigerant cylinder and manifold for charging
WARNING
CAUTION
• Do not touch the air inlet or the
sharp aluminum fins of the
outdoor unit. You may get injured.
• Ventilate any enclosed areas when
installing or testing the refrigeration
system. Leaked refrigerant gas, on
contact with fire or heat, can produce
dangerous toxic gas.
• Confirm after installation that no
refrigerant gas is leaking. If the gas
comes in contact with a burning
stove, gas water heater, electric room
heater or other heat source, it can
cause the generation of toxic gas.
Others
WARNING
CAUTION
• Do not sit or step on the unit, you
may fall down accidentally.
• Do not touch the air inlet or the
sharp aluminum fins of the
outdoor unit. You may get injured.
• Do not stick any object into the
FAN CASE.
You may be injured and the unit
may be damaged.
NOTICE
The English text is the original instructions. Other
languages are translations of the original instructions.
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5
ENGLISH
CONTENTS
Page
Page
IMPORTANT! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Please Read Before Starting
IMPORTANT INFORMATION REGARDING THE
REFRIGERANT USED . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-1. Main Components
1-2. Tools Required for Installation (not supplied)
1-3. Accessories Supplied with Unit
1-4. Field Supply Accessories
1-5. Type of Copper Tube and Insulation Material
1-6. Additional Materials Required for Installation
2. SELECTING THE INSTALLATION SITE . . . . . . . . . . . 8
2-1. Indoor Unit
3. HOW TO INSTALL THE INDOOR UNIT . . . . . . . . . . . 8
3-1. Select the Best Location
3-2. How to Fix Installation Plate
3-3. To Drill a Hole in the Wall and Install a Piping
Sleeve
3-4. Indoor Unit Installation
3-5. Water Piping Installation
3-6. Indoor Unit Refrigerant Piping Installation
3-7. Drain Hose Installation
3-8. Drain Elbow and Hose Installation
4. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . . 11
4-1. General Precautions on Wiring
4-2. Recommended Wire Length and Wire Diameter
for Power Supply System
4-3. Wiring System Diagram
■ For stranded wiring
■ Examples of shield wires
■ Wiring sample
5. HOW TO PROCESS TUBING . . . . . . . . . . . . . . . . . . 15
5-1. Connecting the Refrigerant Tubing
5-2. Connecting Tubing Between Indoor and Outdoor
Units
5-3. Insulating the Refrigerant Tubing
5-4. Taping the Tubes
5-5. Finishing the Installation
6. HOW TO INSTALL THE HIGH-SPEC WIRED REMOTE
CONTROLLER (OPTIONAL PART) . . . . . . . . . . . . . 17
6-1. Installation Location
6-2. Mounting
6-3. Dimensions
7. TEST RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7-1. How to Remove Front Plate
7-2. How to Remove Side Cabinet
7-3. Initial Setting for Air-to-Water Unit
7-4. Detailed settings for Air-to-Water (extract)
8. OVERLOAD PROTECTOR . . . . . . . . . . . . . . . . . . . . 23
9. CHECK WATER PRESSURE . . . . . . . . . . . . . . . . . . 24
10. CHECK PRESSURE RELIEF VALVE . . . . . . . . . . . . 24
11. CHECK AIR PURGE VALVE . . . . . . . . . . . . . . . . . . . 24
12. CHECK RCCB/ELCB . . . . . . . . . . . . . . . . . . . . . . . . 24
13. APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
■ Troubleshooting
■ Error Code
■ Tips for Energy Saving
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6
1. GENERAL
This booklet briefly outlines where and how to install the Air-to-Water system. Please read over the entire set of instructions for the
indoor units and make sure all accessory parts listed are with the indoor units before beginning.
1-1. Main Components
Indoor unit
1. PCB (Main)
2. PCB (Relay Board)
3. PCB (3WAY)
4. Pressure relief valve
5. Flow switch
6. Pressure gauge
7. Water pump
8. 1 phase RCCB/ELCB
9. Cabinet front plate
10. Cabinet
11. Handle (2 pieces)
12.
Overload protector (3 pieces)
13. Expansion vessel
14. Heater assembly
15. Bushing
16. Air purge valve
17. Expansion valve
Connector name
18. Water outlet
19. Gas refrigerant
20. Liquid refrigerant
21. Water drainage
22. Water inlet
ʸʾ
ʾ
ʽ
ʸʻ
ʸʺ
ʸʽ
ʸʹ
ʼ
ʻ
ʸʷ
ˀ
ʸʸ
ʹʸ
ʸʼ
ʹʷ
ʹʹ
ʸˀ ʸʿ
ʺ
ʹ
ʸ
ʿ
START[ ]
20:30 (THU)
START[ ]
20:30 (THU)
* Only one High-spec Wired Remote Controller (CZ-RTC5) is
necessary for one Air-to-Water.
* Sub-remote controller cannot be connected.
* Group controller function cannot be used for Air-to-Water unit.
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7
ENGLISH
1-2. Tools Required for Installation (not supplied)
1. Flathead screwdriver
2. Phillips head screwdriver
3. Knife or wire stripper
4. Tape measure
5. Carpenter’s level
6. Sabre saw or keyhole saw
7. Hacksaw
8. Core bits
9. Hammer
10. Drill
11. Tube cutter
12. Tube flaring tool
13. Torque wrench
14. Adjustable wrench
15. Reamer (for deburring)
1-3. Accessories Supplied with Unit
No. Accessories Qty. No. Accessories Qty. No. Accessories Qty.
aInstallation
plate 1dPS Foam 2 gDrain elbow 1
bScrew 3eLong Banding
Strap 4
cInstallation
plate 1fPacking 1
1-4. Field Supply Accessories
No. Optional Parts Qty. Model Source Maker
i 2-way Valve Kit 1 Electromotoric Actuator SFA21/18 AC230V Siemens
2-port Valve VVI46/25 -- Siemens
ii Room Thermostat 1 Analog Type RAA20 AC230V Siemens
Programmable Type REV200
1-5. Type of Copper Tube and Insulation Material
If you wish to purchase these materials separately from a local source, you will need:
1. Deoxidized annealed copper tube for refrigerant tubing.
Cut each tube to the appropriate lengths +30 cm to 40 cm to dampen vibration between units.
2. Foamed polyethylene insulation for copper tubes as required to precise length of tubing. Wall thickness of the insulation should be
not less than 8 mm.
3. Use insulated copper wire for field wiring. Wire size varies with the total length of wiring.
Refer to 4. ELECTRICAL WIRING for details.
CAUTION
Check local electrical codes and regulations before obtaining wire. Also, check any specified instructions or limitations.
1-6. Additional Materials Required for Installation
1. Refrigeration (armored) tape
2. Insulated staples or clamps for connecting wire (See your local codes.)
3. Putty
4. Refrigeration tubing lubricant
5. Clamps or saddles to secure refrigerant tubing
6. Scale for weighing
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8
1. The indoor unit must be within a maintenance space.
[ ]
Drain Hose
300 mm
or more
300 mm
or more
300 mm or more
ø9.52 mm
(3/8”) Liquid
Refrigerant
Piping
ø15.88 mm (5/8”) Gas
Refrigerant
Piping
Water Inlet
piping
Water Outlet
piping Check that all the
cables do not touch
the hot piping, etc.
Cable list:
● Power Supply cable
● Inter-unit control wiring
● Remote controller wiring
● MINI Seri-Para I/O wiring
● Other cable
● 2-way Valve cable
● Room Thermostat cable
● External Controller cable
Optional
Type
designation
60245 IEC
57 or heavier
cable
2. SELECTING THE INSTALLATION SITE
2-1. Indoor Unit
AVOID:
●areas where leakage of flammable gas may be expected.
●places where large amounts of oil mist exist.
●direct sunlight.
●locations near heat sources which may affect the
performance of the unit.
●locations where external air may enter the room directly.
This may cause “condensation” on the air discharge ports,
causing them to spray or drip water.
●locations where the remote controller will be splashed with
water or affected by dampness or humidity.
●installing the remote controller behind curtains or furniture.
●locations where high-frequency emissions are generated.
DO:
●select an appropriate position from which every corner of the
room can be uniformly cooled.
●select a location where the ceiling is strong enough to
support the weight of the unit.
WARNING
●select a location which can support a load that is four times
the indoor unit weight.
●select a location where tubing and drain pipe have the
shortest run to the outdoor unit.
●allow room for operation and maintenance as well as
unrestricted air flow around the unit.
●install the unit within the maximum elevation difference
above or below the outdoor unit and within a total tubing
length (L) from the outdoor unit as detailed in the installation
instructions packed with the outdoor unit.
●allow room for mounting the remote controller about 1 m off
the floor, in an area that is not in direct sunlight nor in the
flow of cool air from the indoor unit.
N OT E
Air delivery will be degraded if the distance from the floor to the
ceiling is greater than 3 m.
3. HOW TO INSTALL THE INDOOR UNIT
3-1. Select the Best Location
●There should not be any heat source or steam near the unit.
●A place where air circulation in the room is good.
●A place where drainage can be easily done.
●A place where noise prevention is taken into consideration.
●Do not install the unit near the door way.
●Ensure the spaces indicated by arrows from the wall, ceiling,
fence or other obstacles.
●Recommended installation height for indoor unit shall be at
least 800 mm.
●Must install on a vertical wall.
●When install electrical equipment at wooden building
of metal lath or wire lath, according to electrical facility
technical standard, no electrical contact between equipment
and building is allowed. Insulator must be installed in
between.
●Do not install the indoor unit at outside a building. This is
designed for indoor installation only.
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9
ENGLISH
3-2. How to Fix Installation Plate
The mounting wall is strong and solid enough to prevent it from
vibration.
Washer
Wall
Wall
Installation
plate a
Installation
plate c
Indoor
unit
body
Wall
745
71 160 200
6
6
1550 from
ground
More than 551 More than 551
(Unit: mm)
Bolt-size M8
Bolt-
size
M8
Appropriate
Plugs (M8)
The centre of installation plate should be at more than 551 mm
at right and left of the wall.
The distance from installation plate edge to ground should more
than 1550 mm.
●
Always mount the installation plate horizontally by aligning
the marking thread and using a level gauge.
●
Mount the installation plate on the wall with 6 sets of plug,
bolt and washer (all non-supply) with size M8.
CAUTION
Also avoid areas where electrical wiring or conduits are
located.
The above precautions are also applicable if tubing goes
through the wall in any other location.
(1) Using a sabre saw, keyhole saw or hole-cutting drill
attachment, cut a hole in the wall.
N OT E
Hole should be made at a slight downward slant to the outdoor
side.
Hole Dia. (mm)
70
3-3. To Drill a Hole in the Wall and Install a Piping
Sleeve
(1) Insert the piping sleeve to the hole.
(2) Fix the bushing to the sleeve.
(3) Cut the sleeve until it extrudes about 15 mm from the wall.
CAUTION
When the wall is hollow, please be sure to use the Piping
sleeve assembly to prevent dangers caused by mice biting the
connection cable.
(4) Finish by sealing the sleeve with putty or caulking
compound at the final stage.
15 mm
Wall
Indoor Outdoor
Approx. 5 ~ 7 mm
Bushing for tube
Assembly
Putty or caulking compound
Sleeve for tube
assembly
ø70 mm
through hole
3-4. Indoor Unit Installation Installation
plate a
Slots
Hooks
Wall
Indoor unit (back)
Installation
plate c
Screws b
1. Engage the slots on the
indoor unit to the hooks of
installation plate a. Ensure
the hooks are properly
seated on the installation
plate by moving it left and
right.
2. Fix the screws bto the
holes on the hooks of
installation plate c, as
illustrated at right.
3-5. Water Piping Installation
●
The minimum requirement of water in the system is 50 litres.
If this value could not be achieved, please install additional
buffer tank (field supply).
●
Water inlet and water outlet in indoor unit are used for
connection to water circuit.
Please request a licensed technician to install this water
circuit.
●
This water circuit must comply with all relevant European and
national regulations, i.e. IEC/EN 61770.
●
Be careful not to deform the piping with excessive force when
doing piping connection job.
●
Use Rp 1-1/4” nut for both water inlet and outlet connection
and clean all pipings with tap water before connecting to the
indoor unit.
●
Cover the piping end to prevent dirt and dust when inserting it
through a wall.
●
Choose proper sealer which can withstand the pressures and
temperatures of the system.
●
If an existing tank is to be connected to this indoor/outdoor
unit, ensure the pipings are clean before water piping
installation is carried out.
●
An external filter (30 mesh or more, field supplied) must
be installed before the water inlet of the indoor unit (with
“WATER IN” indication).
●Water operating temperatures (Minimum ~ Maximum) : 5 °C
~ 65 °C
●Water operating pressures (Minimum ~ Maximum) : 0.05 MPa
~ 0.3 MPa
Indoor side Outdoor side
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10
Water Piping Installation of Air-Conditioning mode
Water Piping Installation of TANK mode
Water Inlet
Tank Unit
Panasonic
Air-to-Water
Heatpump
Indoor Unit
External Filter
(Field Supply)
Water
Outlet
High-Spec Wired Remote
Controller (CZ-RTC5)
●
Be sure to use two spanners to tighten the connection.
Tighten the nuts with torque wrench: 117.6 N•m {1176 kgf•cm}.
●
If non-brass metallic piping is used for installation, make sure
to insulate the pipings to prevent galvanic corrosion.
●
Make sure to insulate the water circuit pipings to prevent
reduction of heating capacity.
●
After installation, check the water leakage condition in
connection area during test run.
Water Inlet
Water Outlet
CAUTION
Do not overtighten,
overtightening may cause
water leakage.
Insulation
●
Mount the PS foam dand long banding strap eto water
inlet and outlet connectors, as shown in below illustration.
PS Foam d
PS Foam d
Water Connector
Water Connector
Long Banding Strap e
Panasonic Air-to-Water
Heatpump Indoor Unit
Fan Coil Unit
Radiator/Floor
Heater
High-spec Wired
Remote Controller
(CZ-RTC5)
Room Thermostat
(Field Supply)
Space cooling can be achieved
through the fan coil unit ONLY.
Make sure to install
the 2-way Valve in
case that radiator/
floor heater is
installed in the
cooling circuit.
External
Filter (Field Supply)
Water
Outlet
Water
Inlet
2-way
Valve
Expansion Vessel
●
Expansion Vessel with 10 L air capacity and initial pressure of
1 bar is installed in this indoor unit.
●
Total amount of water in system should be below 200 L.
(Note: This amount of water does not include the tank unit
volume)
●
If total amount of water is over 200 L, please add expansion
vessel. (field supply)
●
Please keep the installation height difference of system water
circuit within 10 m.
(Inner volume of same indoor unit is about 5 L)
3-6. Indoor Unit Refrigerant Piping Installation
1. Please make flare after inserting flare nut (located at joint
portion of tube assembly) onto the copper pipe. (In case of
using long piping)
2. Do not use pipe wrench to open refrigerant piping. Flare nut
may be broken and cause leakage. Use proper spanner or
ring wrench.
3. Connect the piping:
●
Align the centre of piping and sufficiently tighten the flare
nut with fingers.
●
Further tighten the flare nut with torque wrench in
specified torque as stated in the table.
Model Piping size (Torque)
Gas Liquid
S-80MW1E5
S-125MW1E5
ø15.88 mm (5/8”)
65 N•m
{650 kgf•cm}
ø9.52 mm (3/8”)
42 N•m
{420 kgf•cm}
CAUTION
Do not overtighten, overtightening may cause gas leakage.
Liquid Refrigerant Piping
Gas Refrigerant Piping
3-7. Drain Hose Installation
●
Use inner diameter 15 mm drain hose in the market.
●
This hose must be installed in a continuously downward
direction and in a frost-free environment.
●
Do not insert this hose into sewage or drain hose that may
generate ammonia gas, sulfuric gas, etc.
●
If necessary, use hose clamp to further tighten the hose at
drain hose connector to prevent leakage.
●
Water will drip from this hose, therefore the outlet of this hose
must be installed in an area where the outlet cannot become
blocked.
Drain hose
Drain water outlet
Drain hose
connector
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