Mitsubishi PUHY-P-YSMF-B Installation Manual
Air-Conditioners
gepr
fte
Sicherheit
OUTDOOR UNIT
PUHY-P-YSMF-B
FOR INSTALLER
FÜR INSTALLATEURE
gepr
üfte
Sicherheit
POUR L’INSTALLATEUR
VOOR DE INSTALLATEUR
PER L’INSTALLATORE
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
∗ Remote controller (PAR-F25MA) is available as an optional remote controller.
INSTALLATIONSHANDBUCH
Zum sicheren und ordnungsgemäßen Gebrauch der Klimageräte das Installationshandbuch gründlich durchlesen.
∗ Fernbedienung (PAR-F25MA) ist als Zubehör wahlweise erhältlich.
ENGLISH
DEUTSCH
FRANÇAIS
MANUEL D’INSTALLATION
Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous assurer d’une utilisation
correcte.
∗ La télécommande (PAR-F25MA) est disponible en option.
INSTALLATIEHANDLEIDING
Voor een veilig en juist gebruik moet u deze installatiehandleiding grondig doorlezen voordat u de airconditioner installeert.
∗ De afstandsbedieningseenheid (PAR-F25MA) is verkrijgbaar als een optioneel toe te voegen afstandsbediening.
MANUALE DI INSTALLAZIONE
Per un uso sicuro e corretto, leggere attentamente questo manuale di installazione prima di installare il condizionatore d’aria.
∗ Il comando a distanza (modello PAR-F25MA) disponibile in opzione.
NEDERLANDS
ITALIANO
Contents
1. Safety precautions ...................................................................... 3
1.1. Before installation and electric work ............................... 3
1.2. Precautions for devices that use R407C refrigerant....... 3
1.3. Before getting installed ................................................... 4
1.4. Before getting installed (moved) - electrical work ........... 4
1.5. Before starting the test run ............................................. 4
2. Combination with indoor units..................................................... 5
3. Confirmation of parts attached ................................................... 5
4. Outdoor unit configuration .......................................................... 6
5. Selection of installation site ........................................................ 6
6. Space required around unit ........................................................ 7
6.1. Individual installation ...................................................... 7
6.2. Collective installation and continuous installation........... 8
7. Lifting method and weight of product.......................................... 8
8. Installation of unit........................................................................ 9
8.1. Location of anchor bolt ................................................... 9
8.2. Installation ...................................................................... 9
8.3. Connecting direction for refrigerant piping.................... 10
ENGLISH
8.4. Noise level .................................................................... 10
9. Caution for snow and seasonal wind ........................................ 11
9.1. Snow and seasonal wind.............................................. 11
9.2. Countermeasure to seasonal wind ............................... 11
10. Refrigerant piping installation.................................................. 12
10.1. Areas of caution .......................................................... 12
10.2. Refrigerant piping system ........................................... 14
10.3. Precautions concerning piping connection
and valve operation..................................................... 16
10.4. Oil balance pipe connection method ........................... 19
10.5. Distributor (gas) connection method ........................... 20
10.6. How to install branch pipe ........................................... 21
10.7. Airtight test and evacuation, refrigerant charging........ 22
10.8. Thermal insulation of refrigerant piping....................... 25
11. Electrical work ......................................................................... 27
11.1. Caution........................................................................ 27
11.2. Control box and connecting position of wiring............. 28
11.3. Wiring transmission cables ......................................... 30
11.4. Wiring of main power supply and
equipment capacity ..................................................... 37
12. Test run .................................................................................... 38
12.1. Checking before getting test run ................................. 38
12.2. Test run method .......................................................... 38
12.3. How to cope with test run abnormality ........................ 39
12.4. Coping with remote controller abnormality.................. 42
12.5. The following phenomena do not represent
abnormality (emergency) ............................................ 43
2
1. Safety precautions
1.1. Before installation and electric work
s Before installing the unit, make sure you read all the
“Safety precautions”.
s The “Safety precautions” pro vide very important points
regarding safety. Make sure you follow them.
s This equipment may not be applicable to EN61000-3-
2: 1995 and EN61000-3-3: 1995.
s This equipment may cause the adverse effect on the
same supply system.
s Please report to or take consent by the supply author-
ity before connection to the system.
Symbols used in the text
Warning:
Describes precautions that should be observed to prevent danger
of injury or death to the user.
Caution:
Describes precautions that should be observed to prevent damage
to the unit.
Symbols used in the illustrations
: Indicates an action that must be avoided.
: Indicates that important instructions must be followed.
: Indicates a part which must be grounded.
: Indicates that caution should be taken with rotating parts. (This
symbol is displayed on the main unit label.) <Color: Yellow>
: Indicates that the main switch must be turned off before servicing.
(This symbol is displayed on the main unit label.) <Color: Blue>
: Beware of electric shock (This symbol is displayed on the main
unit label.) <Color: Yellow>
: Beware of hot surface (This symbol is display ed on the main unit
label.) <Color: Yellow>
: Please pay attention to electric shock fully because this is
ELV
not Safety Extra Low-Voltage (SELV) circuit.
And at servicing, please shut down the power supply for both
of Indoor Unit and Outdoor Unit.
Warning:
Carefully read the labels affixed to the main unit.
Warning:
• Ask the dealer or an authorized technician to install the air conditioner.
- Improper installation by the user ma y result in water leakage, elec-
tric shock, or fire.
• Install the air unit at a place that can withstand its weight.
- Inadequate strength may cause the unit to fall down, resulting in
injuries.
• Use the specified cables for wiring. Make the connections securely so that the outside force of the cable is not applied to the
terminals.
- Inadequate connection and fastening may gener ate heat and cause
a fire.
• Prepare for typhoons and other strong winds and earthquakes
and install the unit at the specified place.
- Improper installation may cause the unit to topple and result in in-
jury.
• Always use an air cleaner, humidifier, electric heater, and other
accessories specified by Mitsubishi Electric.
- Ask an authorized technician to install the accessories. Improper
installation by the user may result in water leakage, electric shock,
or fire.
• Never repair the unit. If the air conditioner must be repaired,
consult the dealer.
- If the unit is repaired improperly, water leakage, electric shock, or
fire may result.
• Do not touch the heat exchanger fins.
- Improper handling may result in injury.
• If refrigerant gas leaks during installation work, ventilate the
room.
- If the refrigerant gas comes into contact with a flame, poisonous
gases will be released.
• Install the air conditioner according to this Installation Manual.
- If the unit is installed improperly, water leakage, electric shock, or
fire may result.
• Have all electric work done by a licensed electrician according
to “Electric Facility Engineering Standard” and “Interior Wire
Regulations”and the instructions given in this manual and always use a special circuit.
- If the power source capacity is inadequate or electric work is per-
formed improperly, electric shock and fire may result.
• Securely install the outdoor unit terminal cover (panel).
- If the terminal cover (panel) is not installed properly, dust or water
may enter the outdoor unit and fire or electric shock may result.
• When installing and moving the air conditioner to another site,
do not charge the it with a refrigerant different from the refrigerant (R407C) specified on the unit.
- If a different refrigerant or air is mixed with the original refrigerant,
the refrigerant cycle may malfunction and the unit may be damaged.
• If the air conditioner is installed in a small room, measures must
be taken to prevent the refrigerant concentration from exceeding the safety limit even if the refrigerant should leak.
- Consult the dealer regarding the appropriate measures to prevent
the safety limit from being exceeded. Should the refrigerant leak
and cause the safety limit to be exceeded, hazards due to lack of
oxygen in the room could result.
• When moving and reinstalling the air conditioner, consult the
dealer or an authorized technician.
- If the air conditioner is installed improperly, water leakage, electric
shock, or fire may result.
• After completing installation work, make sure that refrigerant
gas is not leaking.
- If the refrigerant gas leaks and is exposed to a fan heater, stove,
oven, or other heat source, it may generate noxious gases.
• Do not reconstruct or change the settings of the protection devices.
- If the pressure switch, thermal switch, or other protection de vice is
shorted and operated forcibly, or parts other than those specified
by Mitsubishi Electric are used, fire or explosion may result.
• To dispose of this product, consult your dealer.
• The installer and system specialist shall secure safety against
leakage according to local regulation or standards.
- Following standards may be applicable if local regulation are not
available.
• Pay a special attention to the place, such as a basement, etc.
where refrigeration gas can stay, since refrigeration is heavier
than the air.
1.2. Precautions for devices that use
R407C refrigerant
Caution:
• Do not use the existing refrigerant piping.
- The old refrigerant and refrigerator oil in the existing piping con-
tains a large amount of chlorine which may cause the refrigerator
oil of the new unit to deteriorate.
• Use refrigerant piping made of C1220 (CU-DHP) phosphorus
deoxidized copper as specified in the JIS H3300 “Copper and
copper alloy seamless pipes and tubes”. In addition, be sure
that the inner and outer surfaces of the pipes are clean and free
ENGLISH
3
of hazardous sulphur, oxides, dust/dirt, shaving particles, oils,
moisture, or any other contaminant.
- Contaminants on the inside of the refrigerant piping may cause the
refrigerant residual oil to deteriorate.
• Store the piping to be used during installation indoors and keep
both ends of the piping sealed until just before brazing. (Store
elbows and other joints in a plastic bag.)
- If dust, dirt, or water enters the refrigerant cycle, deterioration of
the oil and compressor trouble may result.
• Use ester oil, ether oil or alkylbenzene (small amount) as the
refrigerator oil to coat flares and flange connections.
- The refrigerator oil will degrade if it is mixed with a large amount of
mineral oil.
• Use liquid refrigerant to fill the system.
- If gas refrigerant is used to seal the system, the composition of the
refrigerant in the cylinder will change and performance may drop.
• Do not use a refrigerant other than R407C.
- If another refrigerant (R22, etc.) is used, the chlorine in the refriger-
ant may cause the refrigerator oil to deteriorate.
• Use a vacuum pump with a reverse flow check valve.
- The vacuum pump oil may flow back into the refrigerant cycle and
cause the refrigerator oil to deteriorate.
• Do not use the following tools that are used with conventional
refrigerants.
(Gauge manifold, charge hose, gas leak detector, reverse flow
check valve, refrigerant charge base, vacuum gauge, refrigerant recovery equipment)
- If the conventional refrigerant and refrigerator oil are mixed in the
ENGLISH
R407C, the refrigerant may deteriorated.
- If water is mixed in the R407C, the refrigerator oil may deteriorate.
- Since R407C does not contain any chlorine, gas leak detectors for
conventional refrigerants will not react to it.
• Do not use a charging cylinder.
- Using a charging cylinder may cause the refrigerant to deteriorate.
• Be especially careful when managing the tools.
- If dust, dirt, or water gets in the refrigerant cycle, the refrigerant
may deteriorate.
1.3. Before getting installed
• Install the power cable so that tension is not applied to the cable.
- Tension may cause the cable to break and generate heat and cause
a fire.
• Install an leak circuit breaker, as required.
- If an leak circuit breaker is not installed, electric shock may result.
• Use power line cables of sufficient current carrying capacity
and rating.
- Cables that are too small may leak, generate heat, and cause a
fire.
• Use only a circuit breaker and fuse of the specified capacity.
- A fuse or circuit breaker of a larger capacity or a steel or copper
wire may result in a general unit failure or fire.
• Do not wash the air conditioner units.
- Washing them may cause an electric shock.
• Be careful that the installation base is not damaged by long use.
- If the damage is left uncorrected, the unit may fall and cause per-
sonal injury or property damage.
• Install the drain piping according to this Installation Manual to
ensure proper drainage. Wrap thermal insulation around the
pipes to prevent condensation.
- Improper drain piping may cause water leakage and damage to
furniture and other possessions.
• Be very careful about product transportation.
- Only one person should not carry the product if it weighs more than
20 kg.
- Some products use PP bands for packaging. Do not use any PP
bands for a means of transportation. It is dangerous.
- Do not touch the heat exchanger fins. Doing so may cut your fin-
gers.
- When transporting the outdoor unit, suspend it at the specified po-
sitions on the unit base. Also support the outdoor unit at four points
so that it cannot slip sideways.
• Safely dispose of the packing materials.
- Packing materials, such as nails and other metal or wooden parts,
may cause stabs or other injuries.
- Tear apart and throw away plastic pac kaging bags so that children
will not play with them. If children pla y with a plastic bag which was
not torn apart, they face the risk of suffocation.
Caution:
• Do not install the unit where combustible gas may leak.
- If the gas leaks and accumulates around the unit, an explosion
may result.
• Do not use the air conditioner where food, pets, plants, precision instruments, or artwork are kept.
- The quality of the food, etc. may deteriorate.
• Do not use the air conditioner in special environments.
- Oil, steam, sulfuric smoke, etc. can significantly reduce the per-
formance of the air conditioner or damage its parts.
• When installing the unit in a hospital, communication station,
or similar place, provide sufficient protection against noise.
- The inverter equipment, private power generator, high-frequency
medical equipment, or radio communication equipment may cause
the air conditioner to operate erroneously , or f ail to operate. On the
other hand, the air conditioner may affect such equipment by creating noise that disturbs medical treatment or image broadcasting.
• Do not install the unit on a structure that may cause leakage.
- When the room humidity exceeds 80% or when the drain pipe is
clogged, condensation may drip from the indoor unit. Perform collective drainage work together with the outdoor unit, as required.
1.4. Before getting installed (moved) -
electrical work
Caution:
• Ground the unit.
- Do not connect the ground wire to gas or water pipes, lightning
rods, or telephone ground lines. Improper grounding may result in
electric shock.
• The reverse phase of L lines (L1, L2, L3) can be detected (Error
cord : 4103), but the reverse phase of L lines and N line can be
not be detected.
- The some electric parts should be damaged when power is sup-
plied under the miss wiring.
1.5. Before starting the test run
Caution:
• Turn on the power at least 12 hours before starting operation.
- Starting operation immediately after turning on the main power
switch can result in severe damage to internal parts. Keep the pow er
switch turned on during the operational season.
• Do not touch the switches with wet fingers.
- Touching a switch with wet fingers can cause electric shock.
• Do not touch the refrigerant pipes during and immediately after
operation.
- During and immediately after operation, the refrigerant pipes are
may be hot and may be cold, depending on the condition of the
refrigerant flowing through the refrigerant piping, compressor, and
other refrigerant cycle parts. Your hands may suffer burns or frostbite if you touch the refrigerant pipes.
• Do not operate the air conditioner with the panels and guards
removed.
- Rotating, hot, or high-voltage parts can cause injuries.
• Do not turn off the power immediately after stopping operation.
- Alwa ys wait at least five minutes before turning off the power. Oth-
erwise, water leakage and trouble may occur.
4
2. Combination with indoor units
The indoor units connectable to this unit are shown below.
Outdoor unit model
name
Note:
1. The total capacity of connected indoor unit models represents the total sum of the figures expressed in the indoor model name.
2. Combinations in which the total capacity of the connected indoor units exceeds the capacity of the outdoor unit will reduce the capacity
of each indoor unit below the rated capacity during simultaneous operation. Therefore, if circumstances allows, combine indoor units
within the capacity of the outdoor unit.
3. A transmission booster (RP) is required when the number of connected indoor unit models in a cooling system exceeds the number of
models specified in the chart below.
* The maximum number of units that can be controlled is determined by the indoor unit model, the type of remote controller and their
capabilities.
(*1)
Capability of the
connected indoor units
*1 If even one unit that is higher than 200 exists in the cooling system, the maximum capacity will be “200 or higher”.
Total capacity of
connected indoor unit
models
300 to 780PUHY-P600
325 to 845PUHY-P650
350 to 910PUHY-P700
375 to 975PUHY-P750
Number of connected indoor units that can be
connected without a RP.
200 or lower
200 or higher
Quantity of connectable
indoor unit
PMFY-P25 · 32 · 40 · 63 VBM
PLFY- P32 · 40 · 50 · 63 · 80 · 100 · 125 VKM
PLFY- P20 · 25 · 32 · 40 · 50 · 63 · 80 · 100 · 125 VLMD
PEFY-P20· 25 · 32 VML
PEFY-P40· 50 · 63 · 71 · 80 · 100 · 125 · 140 · 200 · 250 VMH
3 to 32
Remote controller type
The number of indoor units and the total number of remote controllers is displayed within the parenthesis ( ).
PCFY-P40 · 63 · 100 · 125 VGM
PKFY-P20 · 25 VAM
PKFY-P32· 40 · 50 VGM
PFFY- P20 · 25 · 32 · 40 · 50 · 63 VLEM
PFFY- P20 · 25 · 32 · 40 · 50 · 63 VLRM
PDFY-P20 · 25 · 32 · 40 · 50 · 63 · 71 · 80 · 100 · 125 VM
Model name of connectable indoor unit
Remote controller PAR-F 25MA
Prior to Ver. E After Ver. F
16 (32) 20 (40)
16 (32) 16 (32)
ENGLISH
3. Confirmation of parts attached
This outdoor unit is attached with the parts below. Please check the quantity for each item.
Name 1 Conduit mounting plate 2 Conduit mounting plate 3 Conduit mounting plate 4 Tapping screw M4 × 12
Shape
PUHN-P200YMF-B
PUHN-P250YMF-B
Model name
Name 5 Oil balance pipe 6 Connecting pipe 7 Packing 8 Seal
Shape
PUHN-P200YMF-B
PUHN-P250YMF-B
Model name
ø40
1114
1112
ø33
ø27
insideø23 outsideø35
insideø23 outsideø35
*6 Connecting pipe is fixed with the unit.
5
4. Outdoor unit configuration
The unit (PUHY-P600/650/700/750YSMF-B) consists of a combination of variable capacity units (PUHY-P400/500YMF-B) and constant capacity units
(PUHN-P200/250YMF-B). A CMC-30A (optional) is required when using a combination of these units.
Super Y Variable capacity unit Constant capacity unit
PUHY-P600YSMF-B
PUHY-P650YSMF-B
PUHY-P700YSMF-B
PUHY-P750YSMF-B
CMC-30A (optional)
Name 1 Distributer (gas) 2 Oil balance pipe 2 3 Distributer (liquid) 4 Connecting pipe
Shape
CMC-30A 1 1 1 1
Model name
Name 5 Connecting pipe 6 Connecting pipe 7 Connecting pipe 8 Elbow
PUHY-P400YMF-B
PUHY-P500YMF-B
PUHN-P200YMF-B
PUHN-P250YMF-B
PUHN-P200YMF-B
PUHN-P250YMF-B
ENGLISH
Model name
Shape
CMC-30A 1 1 1 2
5. Selection of installation site
Select space for installing outdoor unit, which will meet the following
conditions:
• no direct thermal radiation from other heat sources
• no possibility of annoying neighbors by noise from unit
• no exposition to strong wind
• with strength which bears weight of unit
• note that drain flows out of unit when heating
• with space for air passage and service work shown below
Because of the possibility of fire, do not install unit to the space where
generation, inflow, stagnation, and leak of combustible gas is expected.
• Avoid unit installation in a place where acidic solution and spra y (sulfur)
are often used.
• When having cooling operation at an outside air temperature of below 10°C, in order to obtain steady operation of unit, select an installation site not exposed directly to rain and snow, or install air outlet
and inlet ducts. (Refer to Page 11.) Install the outdoor unit at the
same position on the same floor, or above, the indoor unit. (See the
figure at the right.)
• Do not use unit in any special environment where oil, steam and
sulfuric gas exist.
Installation restriction on outdoor unit when cooling operation is performed
when the outdoor air temperature is 10°C or lower.
A
(Same floor as indoor unit, or floor above)
A 4 m or less
6
6. Space required around unit
C
B
A
B
650
325
A
C
H
h
Hh
E
D
6.1. Individual installation
Basic space required
A space of at least 250 mm is necessary at the back for inlet air. Taking
servicing, etc. from the rear into account, a space of about 450 mm
should be provided, the same as at the front.
D
A
B
C
<Top view> <Side view>
A 250 mm or more
B 450 mm or more
C Front (outside of machine room)
D Top discharge (open in principle)
E Front inlet (open in principle)
F Rear inlet (open in principle)
When inlet air enters from right and left sides of unit
When unit is surrounded by walls
<Side view>
A L
1 or more
B L
FE
2 or more
C Front
D Front panel
E Rear panel
Note:
• Wall heights (H) of the front and the back sides shall be within
height of front panel and rear panel.
• If the panel height is exceeded, add the “h” dimension of the
figure above to L
L
1 L2
1 and L2 in the table above.
ENGLISH
450 250
Example: When h is 100
The L1 dimension becomes 450+100 = 550 mm.
A
B
B
C
C
A
D
<Side view>
A L1 or more
B L
2 or more
C Front
D No restrictions on wall height (left and right)
Note:
• Wall heights (H) of the front and the back sides shall be within
overall height of unit.
• When the total height is exceeded, add the “h” dimension of the
figure above to L1 and L2 in the table above.
L1 L2
450 250
When there is an obstruction above the unit
Hh
A
E
D
B
CF
When there is little space
up to an obstruction
A 45° or more
B 300 mm or more
C Front
D 1000 mm or more
E Air outlet guide (procured at the site)
F Rear
7
6.2. Collective installation and continu-
D D
B
B
B
A
A
A
CCCC
FEFFF
G
C
C
E
ous installation
Space required for collective installation and continuous installation:
When installing several units, leave the space between each block as
shown below considering passage for air and people.
B
A
A
ENGLISH
D
B
D
A
CC
B
FE
EE
CC
B
G
A
A (Must be open)
B Wall height (H)
C Front
D 1000 mm or more
E 250 mm or more
F 450 mm or more
G 900 mm or more
Note:
• Open in the two directions
• In case wall height (H) exceeds overall height of unit, add “h”
dimension (h=wall height <H> – overall height of unit) to
marked dimension.
• If there is a wall at both the front and the rear of the unit, install
up to three units consecutively in the side direction and provide
a space of 1000 mm or more as inlet space/passage space for
each three units.
7. Lifting method and weight of product
• When carrying the unit suspended, pass the ropes under the unit
and use the two suspension points each at the front and rear.
• Always lift the unit with ropes attached at four points so that impact is
not applied to the unit.
• Attach the ropes to the unit at an angle of 40° or less.
• Use two ropes at least A m long.
B
A 40° or less
B Rope suspension part
A
7 ··· PUHN-P200/250YMF-B
A =
8 ··· PUHY-P400/500YMF-B
Dangerous!
Weight of product:
PUHY-P400 PUHY-P500 PUHN-P200 PUHN-P250
455 kg 475 kg 240 kg 255 kg
Caution:
Be very careful to carry product.
- Do not have only one person to carry product if it is more than 20 kg.
- PP bands are used to pack some products. Do not use them as a
mean for transportation because they are dangerous.
- Do not touch heat exchanger fins with y our bare hands. Otherwise you
may get a cut in your hands.
- Tear plastic packaging bag and scrap it so that children cannot play
with it. Otherwise plastic pac kaging bag may suffocate children to death.
- When carrying in outdoor unit, be sure to support it at four points. Carrying in and lifting with 3-point support may make outdoor unit unstable, resulting in a fall of it.
8
8. Installation of unit
8.1. Location of anchor bolt
Mount the constant capacity unit on the left and variable capacity unit on the right of the same frame (as seen from the front of the unit). Allow
10 mm of clearance between the units.
• Individual installation (Unit: mm)
Constant capacity unit
Constant capacity unit Variable capacity unit
880±5
10
Service side
Service side
• Example of collective installation
Constant capacity unit
Constant capacity unit Variable capacity unit
880±5
10
Variable capacity unit
780±2780±2440560±2
Variable capacity unit
780±2780±2440560±2
8.2. Installation
• Fix unit tightly with bolts as shown below so that unit will not fall down
due to earthquake or gust.
• Use concrete or angle for foundation of unit.
• Vibration may be transmitted to the installation section and noise
and vibration may be generated from the floor and walls, depending
on the installation conditions. Therefore, provide ample
vibrationproofing (cushion pads, cushion frame, etc.).
Constant capacity unit
Constant capacity unit Variable capacity unit
440 780±2780±2440560±2
Service side
Service side
For collective installation, provide a 10 mm gap between units.
1010
Variable capacity unit
D
ENGLISH
880±5
C
A
B
E
A Be sure that the cor ners are firmly seated. If the corners are not firmly
seated, the installation feet may be bent.
B M10 anchor bolt procured at the site.
C Corner is not seated.
D Unit
(Provide ample vibrationproofing between the unit and the foundation by
using cushion pads, cushion frame, etc.)
E Piping and wiring space (bottom piping, bottom wiring)
F Concrete foundation
F
Warning:
• Be sure to install unit in a place strong enough to withstand its
weight.
Any lack of strength may cause unit to fall down, resulting in a
personal injury.
• Have installation work in order to protect against a str ong wind
and earthquake.
Any installation deficiency may cause unit to fall down, resulting in a personal injury.
When building the foundation, give full attention to the floor strength,
drain water disposal <during operation, drain water flows out of the unit>,
and piping and wiring routes.
9
Down piping and down wiring precautions
When down piping and down wiring are performed, be sure that foundation and base work does not block the base through holes. When down
piping is performed, make the foundation at least 150 mm high so that
the piping can pass under the bottom of the unit.
<PUHN-P200/250YMF-B>
55
A
25
8073
ENGLISH
584
160
A Bottom piping through hole
B (bolt hole)
C (bolt hole for old models)
D (unit width)
E (unit depth)
F Bottom wiring through hole
G (bolt hole for packing)
560
760
990
130
B
G
D
194
121
B
75
840E880
F
910
55
15
8.3. Connecting direction for refrigerant
piping
Two connecting directions are available f or refriger ant piping of the outdoor unit, bottom piping and front piping, as shown below:
<PUHY-P400/500YMF-B>
694
150230
F
111
8.4. Noise level
56
788280
B
840E880
910
A
73 90 80
780
B
1760
1990
G
D
780
B
PUHY-P400 PUHY-P500 PUHN-P200 PUHN-P250
60/61 dB (A-weighted)
56 dB (A-weighted) 57 dB (A-weighted)
56
15
(50/60Hz)
A
A
B
A Knock-out hole
B Bottom piping
C Front piping
D Connect piping (to constant capacity unit)
B
D
C
Note:
In the case of bottom piping, build a 100 mm or higher foundation
so that piping will go through the bottom of the unit.
1m
A
1m
B
A Front
B Measuring point
Measuring location: a room free from echoes and reverberations
10
9. Caution for snow and seasonal wind
In cold and/or snowy areas, sufficient countermeasures to wind and snow
damages should be taken for operating unit in normal and good condition in winter time. Ev en in the other areas, full consider ation is required
for installation of unit in order to prevent abnormal operations caused by
seasonal wind or snow. When rain and snow directly fall on unit in
the case of air-conditioning operations in 10 or less degrees centigrade outdoor air, mount inlet and outlet ducts on unit for assuring
stable operations.
9.1. Snow and seasonal wind
■ Prevention of wind and snow damages in cold or snowy areas:
Refer to the figure of snow hood shown below:
• Snow hood
<PUHY-P400/500YMF-B>
1093
A
1888
Note:
1. Height of frame base for snow damage prevention (H) shall be
twice as high as expected snowfall. Width of frame base shall
not exceed that of the unit. The frame base shall be made of
angle steel, etc., and designed so that sno w and wind slip through
the structure. (If frame base is too wide, snow will be accumulated on it.)
2. Install unit so that seasonal wind will not directly lash against
openings of inlet and outlet ducts.
3. Build frame base at customer referring to this figure.
Material : Galvanized steel plate 1.2T
Painting : Overall painting with polyester powder
Color : Munsell 5Y8/1 (same as that of unit)
4. When the unit is used in a cold region and the heating operation
is continuously performed for a long time when the outside air
temperature is below freezing, install a heater to the unit base
or take other appropriate measures to prevent water from freezing on the base.
<PUHN-P200/250YMF-B>
1093
888
A
ENGLISH
1145
B
A Outlet
B Inlet
B
500(840)500
(670) 821 903
H
(1990)
1145
B
B
500(840)500
(670) 821 903
H
9.2. Countermeasure to seasonal wind
Referring to the figure shown below, take appropriate measures which
will suit the actual situation of the place for installation.
AA
(990)
A Seasonal wind
11
10. Refrigerant piping installation
Connecting the piping is a terminal-branch type in which refrigerant piping from the outdoor unit is branched at the terminal and connected to each of
the indoor units.
The method of connection consists of flare connections at the indoor units, flange connections for the piping of the outdoor unit and flare connections
for the liquid, oil balance piping. Note that the branched sections are brazed.
Warning:
Always use extreme care to prevent the refrigerant gas (R407C) from leaking while using fire or flame. If the refrigerant gas comes in contact
with the flame from any source, such as a gas sto ve, it breaks do wn and generates a poisonous gas which can cause gas poisoning. Ne ver
weld in an unventilated room. Al wa ys conduct an inspection f or gas leakage after installation of the refrigerant piping has been completed.
10.1. Areas of caution
1 Use the following materials for refrigeration piping.
• Material: Seamless phosphorous deoxidized copper pipe, C1220T-OL or C1220T-O (Note: C1220T-OL is preferred).
• Size: Refer to pages 14 to 15.
2 Commercially available piping often contains dust and other materials. Always blow it clean with a dry inert gas.
3 Use care to prevent dust, water or other contaminants from entering the piping during installation.
4 Reduce the number of bending portions as much as possible, and make bending radius as big as possible.
5 Always use the branch piping set shown below , which are sold separ ately. This unit requires a CMC-30A (optional).
Branch pipe set name
Line branching Header branching
Total of units down-
ENGLISH
stream less than 160
CMY-Y102S-F CMY-Y102L-F CMY-Y202-F CMY-Y302-F CMY-Y104-E CMY-Y107-E CMY-Y1010-E
Total of units down-
stream 161 to 330
Total of units downstream
more than 331 to 630
Total of units down-
stream more than 631
4 branching 7 branching 10 branching
6 If the diameters of the branch piping of the designated refrigerant piping differs, use a pipe cutter to cut the connecting section and then use an
adapter for connecting different diameters to connect the piping.
7 Always observe the restrictions on the refrigerant piping (such as rated length, the difference between high/low pressures, and piping diameter).
Failure to do so can result in equipment failure or a decline in heating/cooling performance.
8 A second branch cannot be made after a header branch. (These are shown by ×.)
A
A
B
A To outdoor unit
B Capped piping
9 Always use good-quality materials for brazing.
0 The City Multi Series Super Y will stop due an abnormality due to excessive or insufficient coolant. At such a time, alw a ys properly charge the unit.
When servicing, always check the notes concerning pipe length and amount of additional refrigerant at both locations, the refrigerant volume
calculation table on the back of the service panel and the additional refrigerant section on the labels for the combined number of indoor units (Refer
to pages 14 to 15).
A Use liquid refrigerant to fill the system.
B Never use refrigerant to perform an air purge. Always evacuate using a vacuum pump.
C Always insulate the piping properly. Insufficient insulation will result in a decline in heating/cooling perf ormance, water drops from condensation and
other such problems (Refer to pages 25 to
D When connecting the refrigerant piping, make sure the ball valve of the outdoor unit is completely closed (the factory setting) and do not operate it
until the refrigerant piping for the outdoor and indoor units has been connected, a refrigerant leakage test has been performed and the evacuation
process has been completed.
E Always use a non-oxidizing brazing material for brazing the parts. If a non-oxidizing br azing material is not used, it could cause clogging or damage
to the compressor unit. (Details of the piping connections and valve operation can be found on pages 16 to 20.)
F Never perform outdoor unit piping connection work when it is raining.
26
).
12
Warning:
When installing and moving the air conditioner to another site, do not charge the it with a refrigerant different from the refrigerant (R407C)
specified on the unit.
- If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged.
Caution:
• Use refrigerant piping made of C1220T-OL phosphorus deoxidized copper. In addition, be sure that the inner and outer surfaces of the
pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminant.
- Contaminants on the inside of the refrigerant piping may cause the refrigerant residual oil to deteriorate.
• Use liquid refrigerant for sealing.
- Sealing with gas refrigerant will change the composition of the refrigerant in the cylinder and reduce the unit’s performance.
• Never use existing refrigerant piping.
- The large amount of chlorine in conventional refrigerant and refrigerator oil in the existing piping will cause the new refrigerant to deteriorate.
• Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing.
- If dust, dirt, or water gets into the refrigerant cycle, the oil will deteriorate and the compressor may fail.
• Do not use a charging cylinder.
- Using a charging cylinder may cause the refrigerant to deteriorate.
ENGLISH
13
10.2. Refrigerant piping system
A
To down stream units
Liquid line (main) CGas line (main) C
Liquid line B
Gas line B
Gas line A
Distributer (gas) (optional)
Distributer (liguid) (optional)
Liquid line A
Oil balance pipe (optional) I
(for distribution within the unit)
Constant
capacity unit
Variable
capacity unit
:indicates piping connection points
Line-branch method
Connection examples
(connecting to six indoor units)
Indoor
side
Outdoor
side
Permissible length
ENGLISH
Permissible high/
Low difference
■ Selecting the refrigerant branch kit
Use the table to the right to make the selection based
on the model total of indoor units downstream from the
branch section.
■ Select each section of refrigerant piping
(1) Section from outdoor unit to first
branch (C)
(2) Sections from branch to indoor
unit (a, b, c, d, e, f)
(3) Section from branch to branch
(D, E, F, G)
Select the size from the table to the right.
Variable capacity unit Constant capacity unit
■
Additional refrigerant charge
The outdoor unit is charged with refrigerant at the time of shipping according to the chart above. As this charge does not
include the amount needed for extended piping, additional charging for each refrigerant line will be required on site. In order that
future servicing may be properly provided, always keep a record
of the size and length of each refrigerant line and the amount of
additional charge by writing it in the space provided on the outdoor unit.
■
Calculation of additional refrigerant charge
•
Calculate the amount of additional charge based on the length
of the piping extension and the size of the refrigerant line.
•
Use the table to the right as guide to calculating the amount
of additional charging and charge the system according.
•
If the calculation results in a fraction of less than 0.1 kg, round
up to the next 0.1 kg. For example, if the result of the calculation was 23.28 kg, round the result up to 23.3 kg.
•
If the total amount of refrigerant including the amount of refrigerant sealed in the outdoor unit when shipped from the
factor plus additional refrigerant for extension piping e xceeds
73 kg, use 73 kg as the total amount of refrigerant.
Amount of refrigerant when shipped from factory + added
refrigerant
14
Total piping length
Item
Farthest piping length (L)
Farthest piping length after first branch (r)
Oil balance pipe
Distributer (liquid)/Variable capacity unit, Constant capacity unit
Distributer (gas)/Constant capacity unit
Indoor/Outdoor
Outdoor upper
Outdoor lower
Indoor/Indoor
Variable capacity unit/Constant capacity unit
Each section
of piping
(kg)
400 500 200 250
16 22 6.5 8.5
73 kg.
=
Constant
Constant
Constant
capacity unit
capacity unit
H
Note 1: Because it is built into the variable capacity unit, B is used to carry liquid only. Set the constant capacity unit and
Variable
Variable
capacity unit
capacity unit
A B
G
Note 1
Note 1
Distributer
Distributer
(liquid)
(liquid)
Distributer
Distributer
(gas)
(gas)
CG
First branch
First branch
h
acde
oor
Ind
Indoor
unit
unit
1
variable capacity unit in accordance with the G dimension given in the figure above (G = 0.01 m).
Oil balance pipe (optional) I
(for distribution within the unit)
Gas line A
Liquid line A
L
R
D
EF
b
Indoor
Indoor
unit
unit
3
Indoor
Indoor
unit
unit
Indoor
Indoor
unit
unit
245
capacity unit
Gas line (main) C
Indoor
Indoor
unit
unit
Indoor
Indoor
unit
unit
f
6
Variable
capacity unit
Distributer (gas) (optional)
Gas line B
Liquid line B
Distributer (liguid) (optional)
Liquid line (main) C
:indicates piping connection points
To down stream units
Note:
• The model total for downstream units shown
in the table below is the model total when
viewed from Point A in the drawing abo ve.
• With the exception of PUHY -P600YSMF-B,
the first branch is always CMY-Y302-F.
Piping components Tolerance
A+B+C+D+E+F+G+a+b+c+d+e+f 220 m or less
A (B)+C+D+E+F+G+f 100 m or less (Max. equivalent length 125 m)
D+E+F+G+f 40 m or less
The included oil balance pipe must be used. If any other piping is used, the length
I
of the oil balance pipe must be no more than 3 m (max. equivalent length 4 m),
and height from the bottom of the unit must be no more than 0.1 m.
A, B (Liquid line) 4 m or less (Max. equivalent length 5 m)
A (Gas line) 4 m or less (Max. equivalent length 5 m)
H 50 m or less
H 40 m or less
h 15 m or less
–
Must be installed on same frame, and there must be no high/low difference.
Select the branch kit, sold separately , from the tab le below . (Each kit contains a refrigerant and gas piping set.)
Downstream unit model total Branch kit model
160 or less CMY-Y102S-F
161 to 330 CMY-Y102L-F
331 to 630 CMY-Y202-F
631 or more CMY-Y302-F
(1) Refrigerant piping diameter in section from outdoor
unit to first branch (outdoor unit piping diameter)
Model
PUHY-P600YSMF-B
PUHY-P650YSMF-B
PUHY-P700YSMF-B
PUHY-P750YSMF-B
Piping diameter (mm)
Liquid line Gas line
ø19.05 ø38.1
ø19.05 ø44.45
ø19.05 ø44.45
ø19.05 ø44.45
(3) Refrigerant piping diameter in section from
branch to branch
Downstream unit
model total
80 or less
81 to 160
161 to 330
331 to 480
481 to 630
631 or more
Liquid line
(mm)
ø9.52
ø12.7
ø12.7
ø15.88
ø15.88
ø19.05
Gas line
(mm)
ø15.88
ø19.05
ø25.4
ø31.75
ø38.1
ø44.45
(2) Refrigerant piping diameter in section from branch
to indoor unit (indoor unit piping diameter)
Model number Piping diameter (mm)
20 · 25 · 32 · 40
50 · 63 · 71 · 80
100 · 125 · 140
200
250
Liquid line ø6.35
Gas line ø12.7
Liquid line ø9.52
Gas line ø15.88
Liquid line ø9.52
Gas line ø19.05
Liquid line ø12.7
Gas line ø25.4
Liquid line ø12.7
Gas line ø28.58
<Additional charge>
Liquid pipe size
total length of
ø19.05 × 0.29
(m) × 0.29 (kg/m)
<Example> Indoor 1 : 125 A : ø12.7 3 m a :ø9.52 15 m
Liquid pipe size
total length of
ø15.88 × 0.25
+++++ α
(m) × 0.25 (kg/m)
2 : 125 B : ø15.88 1 m b :ø9.52 15 m
Liquid pipe size
total length of
ø12.7 × 0.12
(m) × 0.12 (kg/m)
3 : 125 C : ø19.05 40 m c :ø9.52 10 m
4 : 125 D : ø15.88 10 m d :ø9.52 5 m
5 : 100 E : ø15.88 5 m e :ø9.52 5 m
Liquid pipe size
total length of
ø9.52 × 0.06
(m) × 0.06 (kg/m)
Liquid pipe size
total length of
ø6.35 × 0.024
(m) × 0.024 (kg/m)
At the conditions
below:
6:40 F:ø12.7 5 m f : ø6.35 5 m
The total length of each liquid line is as follows
ø19.05 : C = 40 m
ø15.88 : B + D + E = 1 + 10 + 5 = 16 m
ø12.7 : A + F + G = 3 + 5 + 5 = 13 m
ø9.52 : a + b + c + d + e = 50 m
ø6.35 : f = 5 m
Therefore,
<Calculation example>
Additional
refrigerant charge = 40 × 0.29 +16 × 0.25 + 13 × 0.12 +
50 × 0.06 + 5 × 0.024 + 3.0 = 23.3 kg
G:ø12.7 5 m
Value of α
Total capacity of
connecting indoor units
to Model 80 1.0 kg
Models 81 to 160 1.5 kg
Models 161 to 330 2.0 kg
Models 331 to 480 2.5 kg
Models 481 to 630 3.0 kg
Models 631 or more 4.0 kg
α
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