Toshiba MCY-MHP0404HT-E Product guide

Engineering
Data Book
E14-361
Notice: Toshiba is committed to continuously improving its products to ensure the highest
quality and reliability standards, and to meet local regulations and market requirements. All
features and specifications are subject to change without prior notice.
Model name:
MCY-MHP0404HT-E
MCY-MHP0504HT-E
MCY-MHP0604HT-E
Outdoor units
Side blow VRF

1
Side blow VRF Data book
Safety caution............................................................................................................2
1 System overview........................................................................................................5
1-1. Allocation standard of model name..................................................................5
1-2. Summary of system equipments......................................................................5
2 Equipment selection procedure ...............................................................................10
2-1. Selection flow chart ........................................................................................10
2-2. Combination conditions for indoor unit and outdoor unit................................11
2-3. Cooling / heating capacity characteristics ......................................................12
2-4. Operational temperature range ......................................................................15
3 Refrigerant piping design.........................................................................................16
3-1. Free branching system...................................................................................16
3-2. Allowable length / height difference of refrigerant piping................................17
3-3. Selection of refrigerant piping.........................................................................18
3-4. Allowable length / height difference of refrigerant piping with PMV Kit ..........19
3-5. Selection of refrigerant piping with PMV Kit ...................................................20
3-6. Charging requirement with additional refrigerant ...........................................21
4 Wiring design...........................................................................................................22
4-1. General...........................................................................................................22
4-2. Electrical wiring design...................................................................................22
4-3. Outdoor unit power supply..............................................................................22
4-4. Indoor unit power supply ................................................................................23
4-5. Design of control wiring..................................................................................26
5 Outdoor unit.............................................................................................................28
5-1. Specifications .................................................................................................28
5-2. Dimensional drawing......................................................................................29
5-3. Branch header / branch joint ..........................................................................30
5-4. Refrigerant cycle diagram ..............................................................................31
5-5. Wiring diagram ...............................................................................................32
5-6. Connecting diagram .......................................................................................33
5-7. Optional printed circuit board (PCB) of outdoor unit.......................................34
5-8. Part load performance....................................................................................39
5-9. Sound pressure level data..............................................................................42
5-10. PMV Kit ..........................................................................................................44
Contents

2
Side blow VRF Data book
Safety caution
• Before use, read carefully through the “Safety caution” section to ensure correct operation.
• The important contents concerned to the safety are described in the “Safety cautions”.
Be sure to keep them. For Indications and their meanings, see the following description.
Warning Indications on the Air Conditioner Unit
Warning indication Description
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric power supplies before servicing.
WARNING
Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.
CAUTION
High temperature parts.
You might get burned when removing this panel.
CAUTION
Do not touch the aluminium fins of the unit.
Doing so may result in injury.
CAUTION
BURST HAZARD
Opentheservicevalves before the operation, otherwise there might be the
burst.
CAUTION
Do not climb onto the fan guard.
Doing so may result in injury.
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote
electric power supplies
WARNING
Moving parts.
Do not operate unit with
grille removed.
CAUTION
High temperature parts.
You might get burned when
removing this panel.
CAUTION
Do not touch the aluminum
fins of the unit.
Doing so may result in injury.
CAUTION
BURST HAZARD
Open the service valves
before the operation,
CAUTION
Do not climb onto the fan
guard.
Doing so may result in

3
Safety caution
Explanation of indications
WARNING
Indicates possibilities that a death or serious injury of personnel is caused by an incorrect handling.
CAUTION
Indicates contents that an injury (*1) or property damage (*2) only may be caused when an incorrect work has been executed.
*1: “Injury” means a hurt, a burn, or an electric shock which does not require hospitalization or a long-term going to the hospital.
*2: “Property damage means an enlarged damage concerned to property, or breakage of materials.
• After installation work has finished, check there is no trouble by a test operation, and explain using method and
maintenance method to the customers based on the Owner’s Manual.
Please ask the customers to keep this Installation Manual together with the Owner’s Manual.
WARNING
Ask a shop or a professional dealer to install the air conditioner.
If you will install by yourself, a fire, an electric shock, or water leak is caused.
Take measures so that the refrigerant does not exceed the limit concentration even if it leaks when installing the air conditioner
in a small room.
For the measures not to exceed the limit of concentration, contact the dealer. If the refrigerant leaks and it exceeds the limit of
concentration, an accident of oxygen shortage is caused.
Install the air conditioner at a place which is satisfactorily bearable to weight.
If strength is insufficient, the unit may fall down resulting in human injury.
Perform a specified installation work against a strong wind such as typhoon or earthquake.
If the air conditioner is imperfectly installed, an accident by falling or dropping may be caused.
If refrigerant gas leaks during installation work, ventilate the room.
If the leaked refrigerant gas approaches to fire, noxious gas may generate.
After installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks in the room, and approaches to fire such as fan heater, stove or kitchen range, generation of noxious gas may be
caused.
Never recover refrigerant in the outdoor unit.
Be sure to use a refrigerant recovery device to recover refrigerant in reinstallation or repair work.
Recovery of refrigerant in the outdoor unit is unavailable; otherwise a serious accident such as crack or human injury is caused.
A person qualified for the electric work should deal with the electric construction conforming to the regulations of the local
electric company and the Installation Manual. Be sure to use the exclusive circuit.
If there is capacity shortage of the power supply circuit or incomplete installation, a fire or an electric shock is caused.
For cabling, use the specified cables and connect them securely so that external force of cable does not transmit to the
terminal connecting section.
If connection or fixing is incomplete, a fire, etc. may be caused.
Be sure to connect earth wire.
Do not connect earth wire to gas pipe, water pipe, lightning rod, nor earth wire of telephone.
If grounding is incomplete, an electric shock is caused.
CAUTION
Do not install the air conditioner at a place where combustible gas may leak.
If gas leaks and is collected at surrounding the unit, the production of fire may be caused.
Be sure to attach an earth leakage breaker; otherwise an electric shock may be caused.
Using a torque wrench, tighten the flare nut in the specified method.
If the flare nut is exceedingly tightened, the flare nut is broken and a refrigerant leakage may be caused after a long time has passed.

4
Safety caution
WARNINGS ON REFRIGERANT LEAKAGE
Check of Concentration Limit
The room in which the air conditioner is to be
installed requires a design that in the event of
refrigerant gas leaking out, its concentration will not
exceed a set limit.
The refrigerant R410A which is used in the air
conditioner is safe, without the toxicity or combustibility
of ammonia, and is not restricted by laws to be imposed
which protect the ozone layer. However, since it
contains more than air, it poses the risk of suffocation if
its concentration should rise excessively.
Suffocation from leakage of R410A is almost
nonexistent. With the recent increase in the number of
high concentration buildings, however, the installation of
multi air conditioner systems is on theincrease because
of the need for effective use of floor space, individual
control, energy conservation by curtailing heat and
carrying power etc.
Most importantly, the multi air conditionersystem is able
to replenish a large amount of refrigerant compared
with conventional individual air conditioners. If a single
unit of the multi conditioner system is to be
installed in a small room, select a suitable model and
installation procedure so that if the refrigerant
accidentally leaks out, its concentration does not reach
the limit (and in the event of an emergency, measures
can be made before injury can occur).
In a room where the concentration may exceed the limit,
create an opening with adjacent rooms, or install
mechanical ventilation combined with a gas leak
detection device.
The concentration is as given below.
≤ Concentration limit (kg/m3)
The concentration limit of R410A which is used in multi
air conditioners is 0.3 kg/m3.
NOTE 1:
If there are 2 or more refrigerating systems in a single
refrigerating device, the amounts of refrigerant should
be as charged in each independent device.
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in
rooms A, B and C is 10 kg.
The possible amount of leaked refrigerant gas in
rooms D, E and F is 15 kg.
NOTE 2:
The standards for minimum room volume are as follows.
(1) No partition (shaded portion)
(2) When there is an effective opening with the adjacent
room for ventilation of leaking refrigerant gas
(opening without a door, or an opening 0.15 % or
larger than the respective floor spaces at the top or
bottom of the door).
(3) If an indoor unit is installed in each partitioned room
and the refrigerant tubing is interconnected, the
smallest room of course becomes the object. But
when a mechanical ventilation is installed
interlocked with a gas leakage detector in the
smallest room where the density limit is exceeded,
the volume of the next smallest room becomes the
object.
NOTE 3:
The minimum indoor floor area compared with the
amount of refrigerant is roughly as follows: (When the
ceiling is 2.7 m high)
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m3)
Outdoor unit
e.g.,
charged amount (15 kg)
e.g., charged
amount (10 kg)
Indoor unit
Room A Room B Room C Room D Room E Room F
Important
Outdoor unit
Refrigerant piping
Indoor unit
Refrigerant piping
Outdoor unit
Indoor unit
Mechanical ventilation device - Gas leak detector
Very
small
room
Small
room Medium room Large room
0
5
10
10 20 30
15
20
25
30
35
40
kg
m²
Min. indoor floor area
Range below the
density limit of 0.3
kg/m3
(countermeasures
not needed)
Range above the
density limit of 0.3
kg/m3
(countermeasures
needed)
Total amount of refrigerant

5
Side blow VRF Data book
1System overview
1-1. Allocation standard of model name
1-2. Summary of system equipments
1-2-1. Outdoor units
*1 Rated conditions
Cooling : Indoor air temperature 27 °C DB / 19 °C WB. Outdoor air temperature 35 °C DB.
Heating : Indoor air temperature 20 °C DB. Outdoor air temperature 7 °C DB / 6 °C WB.
Corresponding HP Inverter unit
4HP 5HP 6HP
Model name MCY-MHP0404HT-E MCY-MHP0504HT-E MCY-MHP0604HT-E
Cooling capacity (kW)*1 12.1 14.0 15.5
Heating capacity (kW)*1 12.5 16.0 18.0
No. of connectable indoor units 6 6 6
MCY
_MH T J
HP _E
E : Europe, corresponding to European standard model
J : Anti-corrosion heavy protection
T : Capacity variable unit
H : Heat pump
Development series number
Capacity
Hangzhi products R410A
M : Single module unit
Multi Compact Type

6
1System overview
1-2-2. Indoor units
Type Appearance Model name Capacity rank Capacity code Cooling
capacity (kW) Heating capacity (kW) PMV Kit
4-way Air Discharge
Cassette Type
MMU-AP0092H 009 type 1.00 2.8 3.2 -
MMU-AP0122H 012 type 1.25 3.6 4.0 -
MMU-AP0152H 015 type 1.70 4.5 5.0 -
MMU-AP0182H 018 type 2.00 5.6 6.3 -
MMU-AP0242H 024 type 2.50 7.1 8.0 -
MMU-AP0272H 027 type 3.00 8.0 9.0 -
MMU-AP0302H 030 type 3.20 9.0 10.0 -
MMU-AP0362H 036 type 4.00 11.2 12.5 -
MMU-AP0482H 048 type 5.00 14.0 16.0 -
MMU-AP0562H 056 type 6.00 16.0 18.0 -
MMU-AP0094HP-E 009 type 1.00 2.8 3.2 -
MMU-AP0124HP-E 012 type 1.25 3.6 4.0 -
MMU-AP0154HP-E 015 type 1.70 4.5 5.0 -
MMU-AP0184HP-E 018 type 2.00 5.6 6.3 -
MMU-AP0244HP-E 024 type 2.50 7.1 8.0 -
MMU-AP0274HP-E 027 type 3.00 8.0 9.0 -
MMU-AP0304HP-E 030 type 3.20 9.0 10.0 -
MMU-AP0364HP-E 036 type 4.00 11.2 12.5 -
MMU-AP0484HP-E 048 type 5.00 14.0 16.0 -
MMU-AP0564HP-E 056 type 6.00 16.0 18.0 -
Compact 4-way
Cassette (600 ×600)
Type
MMU-AP0054MH-E 005 type 0.60 1.7 1.9 Available
MMU-AP0074MH-E 007 type 0.80 2.2 2.5 Available
MMU-AP0094MH-E 009 type 1.00 2.8 3.2 Available
MMU-AP0124MH-E 012 type 1.25 3.6 4.0 Available
MMU-AP0154MH-E 015 type 1.70 4.5 5.0 Available
MMU-AP0184MH-E 018 type 2.00 5.6 6.3 Available
2-way Air Discharge
Cassette Type
MMU-AP0072WH 007 type 0.80 2.2 2.5 -
MMU-AP0092WH 009 type 1.00 2.8 3.2 -
MMU-AP0122WH 012 type 1.25 3.6 4.0 -
MMU-AP0152WH 015 type 1.70 4.5 5.0 -
MMU-AP0182WH 018 type 2.00 5.6 6.3 -
MMU-AP0242WH 024 type 2.50 7.1 8.0 -
MMU-AP0272WH 027 type 3.00 8.0 9.0 -
MMU-AP0302WH 030 type 3.20 9.0 10.0 -
MMU-AP0362WH 036 type 4.00 11.2 12.5 -
MMU-AP0482WH 048 type 5.00 14.0 16.0 -
MMU-AP0562WH 056 type 6.00 16.0 18.0 -
1-way Air Discharge
Cassette Type
MMU-AP0074YH-E 007 type 0.80 2.2 2.5 Available
MMU-AP0094YH-E 009 type 1.00 2.8 3.2 Available
MMU-AP0124YH-E 012 type 1.25 3.6 4.0 Available
MMU-AP0154SH-E 015 type 1.70 4.5 5.0 Available
MMU-AP0184SH-E 018 type 2.00 5.6 6.3 Available
MMU-AP0244SH-E 024 type 2.50 7.1 8.0 Available
Concealed Duct
Type
MMD-AP0076BHP-E 007 type 0.80 2.2 2.5 Available
MMD-AP0096BHP-E 009 type 1.00 2.8 3.2 Available
MMD-AP0126BHP-E 012 type 1.25 3.6 4.0 Available
MMD-AP0156BHP-E 015 type 1.70 4.5 5.0 Available
MMD-AP0186BHP-E 018 type 2.00 5.6 6.3 Available
MMD-AP0246BHP-E 024 type 2.50 7.1 8.0 Available
MMD-AP0276BHP-E 027 type 3.00 8.0 9.0 Available
MMD-AP0306BHP-E 030 type 3.20 9.0 10.0 Available
MMD-AP0366BHP-E 036 type 4.00 11.2 12.5 Available
MMD-AP0486BHP-E 048 type 5.00 14.0 16.0 Available
MMD-AP0566BHP-E 056 type 6.00 16.0 18.0 Available
Concealed Duct
High Static
Pressure Type
MMD-AP0184H-E 018 type 2.00 5.6 6.3 -
MMD-AP0244H-E 024 type 2.50 7.1 8.0 -
MMD-AP0274H-E 027 type 3.00 8.0 9.0 -
MMD-AP0364H-E 036 type 4.00 11.2 10.0 -
MMD-AP0484H-E 048 type 5.00 14.0 16.0 -

7
1System overview
Slim Duct Type
MMD-AP0054SPH-E 005 type 0.60 1.7 1.9 Available
MMD-AP0074SPH-E 007 type 0.80 2.2 2.5 Available
MMD-AP0094SPH-E 009 type 1.00 2.8 3.2 Available
MMD-AP0124SPH-E 012 type 1.25 3.6 4.0 Available
MMD-AP0154SPH-E 015 type 1.70 4.5 5.0 Available
MMD-AP0184SPH-E 018 type 2.00 5.6 6.3 Available
MMD-AP0244SPH-E 024 type 2.50 7.1 8.0 Available
MMD-AP0274SPH-E 027 type 3.00 8.0 9.0 Available
Ceiling Type
MMC-AP0154H-E 015 type 1.70 4.5 5.0 -
MMC-AP0184H-E 018 type 2.00 5.6 6.3 -
MMC-AP0244H-E 024 type 2.50 7.1 8.0 -
MMC-AP0274H-E 027 type 3.00 8.0 9.0 -
MMC-AP0364H-E 036 type 4.00 11.2 12.5 -
MMC-AP0484H-E 048 type 5.00 14.0 16.0 -
MMC-AP0157HP-E 015 type 1.70 4.5 5.0 -
MMC-AP0187HP-E 018 type 2.00 5.6 6.3 -
MMC-AP0247HP-E 024 type 2.50 7.1 8.0 -
MMC-AP0277HP-E 027 type 3.00 8.0 9.0 -
MMC-AP0367HP-E 036 type 4.00 11.2 12.5 -
MMC-AP0487HP-E 048 type 5.00 14.0 16.0 -
MMC-AP0567HP-E 056 type 6.00 16.0 18.0 -
High-wall Type
3 series
MMK-AP0073H 007 type 0.80 2.2 2.5 Available
MMK-AP0093H 009 type 1.00 2.8 3.2 Available
MMK-AP0123H 012 type 1.25 3.6 4.0 Available
MMK-AP0153H 015 type 1.70 4.5 5.0 Available
MMK-AP0183H 018 type 2.00 5.6 6.3 Available
MMK-AP0243H 024 type 2.50 7.1 8.0 Available
High-wall Type
4 series
MMK-AP0074MH-E 007 type 0.80 2.2 2.5 Available
MMK-AP0094MH-E 009 type 1.00 2.8 3.2 Available
MMK-AP0124MH-E 012 type 1.25 3.6 4.0 Available
Floor Standing
Concealed Type
MML-AP0074BH-E 007 type 0.80 2.2 2.5 -
MML-AP0094BH-E 009 type 1.00 2.8 3.2 -
MML-AP0124BH-E 012 type 1.25 3.6 4.0 -
MML-AP0154BH-E 015 type 1.70 4.5 5.0 -
MML-AP0184BH-E 018 type 2.00 5.6 6.3 -
MML-AP0244BH-E 024 type 2.50 7.1 8.0 -
Floor Standing
Cabinet Type
MML-AP0074H-E 007 type 0.80 2.2 2.5 Available
MML-AP0094H-E 009 type 1.00 2.8 3.2 Available
MML-AP0124H-E 012 type 1.25 3.6 4.0 Available
MML-AP0154H-E 015 type 1.70 4.5 5.0 Available
MML-AP0184H-E 018 type 2.00 5.6 6.3 Available
MML-AP0244H-E 024 type 2.50 7.1 8.0 Available
Floor Standing Type
MMF-AP0154H-E 015 type 1.70 4.5 5.0 -
MMF-AP0184H-E 018 type 2.00 5.6 6.3 -
MMF-AP0244H-E 024 type 2.50 7.1 8.0 -
MMF-AP0274H-E 027 type 3.00 8.0 9.0 -
MMF-AP0364H-E 036 type 4.00 11.2 10.0 -
MMF-AP0484H-E 048 type 5.00 14.0 16.0 -
MMF-AP0564H-E 056 type 6.00 16.0 18.0 -
Console Type
MML-AP0074NH-E 007 type 0.80 2.2 2.5 Available
MML-AP0094NH-E 009 type 1.00 2.8 3.2 Available
MML-AP0124NH-E 012 type 1.25 3.6 4.0 Available
MML-AP0154NH-E 015 type 1.70 4.5 5.0 Available
MML-AP0184NH-E 018 type 2.00 5.6 6.3 Available
Type Appearance Model name Capacity rank Capacity code Cooling
capacity (kW) Heating capacity (kW) PMV Kit

8
1System overview
1-2-3. Branching joints and headers
1-2-4. PMV Kits
Name Model name Appearance Remarks
Y-shapebranching
joint RBM-BY55E
4-branching
header RBM-HY1043E
8-branching
header RBM-HY1083E
Name Model name Appearance Remarks
PMV Kits
RBM-PMV0362E
RBM-PMV0902E

9
1System overview
1-2-5. Remote controllers
1-2-6. Optional PCB of outdoor unit
1-2-7. Controls
Name Model Name Remarks
Wired remote controller RBC-AMT32E
Simple wired remote controller RBC-AS41E2
Wireless remote controller kit
RBC-AX32U(W)-E
RBC-AX32U(WS)-E For 4-way Air Discharge Cassette
RBC-AX32CE2 For Under Ceiling 4series, 1-way Air Discharge
Cassette SH
TCB-AX33CE For Under Ceiling 7series, Under Ceiling and 1-way Air
Discharge Cassette SH 4series
TCB-AX32E2 For Compact 4-way Cassette, 1-way Air Discharge Cassette YH, Concealed Duct Standard, Slim Duct,
Floor Standing Cabinet, Floor Standing
RBC-AX23UW(W)-E For 2-way Air Discharge Casette
ON-OFF controller TCB-CC163TLE2
Central remote controller TCB-SC642TLE2
BMS-CM1280TLE
Schedule timer TCB-EXS21TLE
Remote controller with schedule timer
(7-day timer function) RBC-AMS41E
Lite-Vision plus Remote Controller RBC-AMS51E-EN/ES -EN : English, Italian, Polish, Greece, Russian, Turkish -ES : English, Spanish, Portuguese, French, Dutch,
German
Name Model Name Remarks
Power peak-cut control board TCB-PCDM4E
External master ON/OFF control board TCB-PCMO4E
Output control board TCB-PCIN4E
Name Model Name Remarks
Touch Screen Controller
BMS-TP0641ACE
BMS-TP5121ACE
BMS-TP0641PWE
BMS-TP5121PWE
ACE:Without energy monitoring function
PWE:With energy monitoring function
0641:Maxmimum 64 indoor units connectable
5121:Maximum 512 indoor units connectable
Smart BMS manager BMS-SM1280HTLE
Smart BMS manager with data
analyzer BMS-SM1280ETLE
WEB Based Controller BMS-WB2561PWE
BMS-WB01GTE
TCS-NET Relay Interface BMS-IFLSV4E
Energy Monitoring Relay Interface BMS-IFWH5E
Digital I/O Relay Interface BMS-IFDD03E
LonWorks LN Interface TCB-IFLN642TLE
BACnet Server BMS-LSV9E
BMS-STBN10E
Modbus Interface TCB-IFMB641TLE
Analog Interface TCB-IFCB640TLE

10
Side blow VRF Data book
2 Equipment selection procedure
2-1. Selection flow chart
end
YES
NO
YES
NO
' Increase of indoor unit
capacity at object room against
air-conditioning load
Preliminary selection of indoor units in the standard capacity no less than
air-conditioning load at each room.
Calculate corrected capacity A of each indoor unit by correcting of indoor
temperature for the standard capacity of each indoor unit.(Refer to Chart [1])
Preliminary selection of outdoor unit in the standard capacity no less than
total values of corrected capacity A in indoor units. And check both connect-
able indoor units number and the outdoor unit diversity(Connected ratio of
indoor units to outdoor units) for the specifications.
Calculate corrected capacity B of each indoor unit by following 2 steps.
Step1:Find the correction value of "Connecting pipe length and lift -" by both
the longest length and the largest height. (Refer to Chart [3])
Step2:Calculate by multiplying the value of step1 by corrected capacity A.
Calculate corrected capacity C of each indoor unit by multiplying the total
corrected capacity of outdoor unit at by proportional division of each indoor
unit standard capacity for total standard capacity of all indoor units.
Find correction values of below items for the standard capacity of outdoor
unit selected at or '.
Then determination of total corrected capacity of the selected outdoor unit by
all multiplying.
-Correction of indoor temperature condition(Refer to Chart [1])
-Correction of outdoor temperature condition(Refer to Chart [2])
-Correction of connecting pipe length and lift between indoor and outdoor
units by both the longest length and the largest height (Refer to Chart [3])
-Correction of outdoor unit diversity (Refer to Chart [4])
-Correction of frost condition on outdoor heat exchanger when in heating
(Refer to Chart [5])
Determination of indoor air-conditioning load at each room.
Corrected capacity C of indoor
unit >= air-conditioning load (for All
rooms)
Corrected capacity B of indoor
unit >= air-conditioning load (for All
rooms)
' Increase of outdoor unit
capacity. And check the outdoor
unit diversity

11
2 Equipment selection procedure
2-2. Combination conditions for indoor unit and outdoor unit
Indoor unit can connect 80 % to 130 % of Outdoor unit capacity.
2-2-1. For indoor unit, the capacity code is decided for each capacity rank.
NOTE:
Capacity rank : Correspondence to Btu/h. Capacity code : Correspondence to Horsepower.
*1 : Capacity code of 005 type is the same as 007 type.
2-2-2. For outdoor unit, maximum No. of connectable indoor units and total
capacity code of indoor units are decided.
Capacity rank type 005(*1) 007 008 009 010 012 014 015 017 018 020 024 027 030 036 048 056
Capacity
code Equivalent to HP 0.8 0.8 0.9 1.0 1.1 1.25 1.5 1.7 1.85 2.0 2.25 2.5 3.0 3.2 4.0 5.0 6.0
Outdoor unit Capacity code of outdoor unit No. of connectable indoor units Total capacity code of indoor units
MCY-MHP0404HT* 4 2 to 6 3.2 to 5.2
MCY-MHP0504HT* 5 2 to 6 4.0 to 6.5
MCY-MHP0604HT* 6 2 to 6 4.8 to 7.8

12
2 Equipment selection procedure
2-3. Cooling / heating capacity characteristics
2-3-1. Correction charts for cooling capacity calculation
[1] Capacity correction value vs. indoor air wet bulb temperature
[2] Capacity correction value vs. outdoor air dry bulb temperature
[3] Capacity correction value vs. connecting pipe length and lift difference between indoor and
outdoor units
[4]* Correction of outdoor unit diversity
* : Coefficient to use for correction of outdoor unit capacity when total capacity of the indoor units are not equal to the outdoor unit
capacity.
㪇㪅㪏㩷
㪇㪅㪐㩷
㪈㪅㪇㩷
㪈㪅㪈㩷
㪈㪅㪉㩷
㪈㪌 㪉㪇
Capacity correction value
Indoor air wet bulb temp. (°C)
0.8
0.9
1.0
1.1
1.2
-5 0 5 10 15 20 25 30 35 40
Capacity correction value
Outdoor air dry bulb temp. (°C)
Height of outdoor unit H [m]
Pipe length (Equivalent length) L [m]
Capacity correction value
Indoor units total capacity ratio (%)
Standard capacity ratio

13
2 Equipment selection procedure
2-3-2. Correction charts for heating capacity calculation
[1] Capacity correction value vs. indoor air dry bulb temperature
[2] Capacity correction value vs. outdoor air wet bulb temperature
[3] Capacity correction value vs. connecting pipe length and lift difference between indoor and
outdoor units
[4]* Correction of outdoor unit diversity
* : Coefficient to use for correction of outdoor unit capacity when total capacity of the indoor units are not equal to the outdoor unit
capacity.
0.8
0.9
1.0
1.1
1.2
15 20
Capacity correction value
Indoor air dry bulb temp. (°C)
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
-20 -15 -10 -5 0 5 10 15
Capacity correction value
Outdoor air wet bulb temp. (°C)
Height of outdoor unit H [m]
Pipe length (Equivalent length) L [m]
Capacity correction value
Indoor units total capacity ratio (%)
Standard capacity ratio

14
2 Equipment selection procedure
2-3-3. Capacity correction in case of frost on the outdoor heat exchanger in heating
Correct the heating capacity when frost was found on the outdoor heat exchanger.
Heating capacity = Capacity after correction of outdoor unit x Correction value of capacity resulted from frost
(Capacity after correction of outdoor unit: Heating capacity calculated in the above item 2.)
[5] capacity correction in case of frost on the outdoor heat exchanger
Capacity correction value
Outdoor air wet bulb temp. (°C)

15
2 Equipment selection procedure
2-4. Operational temperature range
The unit will operate down to an outdoor temperature of -20 °C, however considerable performance decrease will be expected below -15 °C.
Therefore please consider installation location/surroundings and system design when expected to operate between -15 °C and -20 °C.
Outdoor air dry bulb temp. (°C)
Indoor air wet bulb temp. (°C)
Cooling
Indoor air dry bulb temp. (°C)
Outdoor air wet bulb temp. (°C)
Heating

16
Side blow VRF Data book
3 Refrigerant piping design
3-1. Free branching system
[1] Line branching system
[2] Header branching system
[3] Header branching system after line branching
[4] Line branching system after header branching
[5] Header branching system after header branching
The above five branching systems enable to dramatically increase the flexibility of refrigerant piping design.
Line branching
system
Header
branching
system
Header
branching
system
Line branching
system after
header
branching
Header
branching
system after
header
branching
Branching joint
Indoor unit
Remote
controller
Outdoor
Branching header
Remote
controller
Outdoor
* In case of "PMV Kit"
Branching header
Branching joint
Remote
controller
PMV Kit
*
Indoor unit
Outdoor
* In case of "PMV Kit"
Branching header
Branching joint
Remote
controller
PMV Kit
*
Indoor unit
Branching header
Outdoor

17
3Refrigerant piping design
3-2. Allowable length / height difference of refrigerant piping
*1 Furthest indoor unit from 1st branch to be named "A"
Allowable value Piping section
Pipe Length
Total extension of pipe (Liquid pipe, real length) 90 m L1 + L2 + L3 + a + b + c + d + e + f
Furthest piping length L(*1) Real length 50 m L1 + L3 + f
Equivalent length 60 m
Max. real length of main pipe 30 m L1
Max. real length of furthest piping from 1st branching Li (*1) 20 m L3 + f
Max. real length of indoor unit connecting pipe 10 m a, b, c, d, e, f
Height
Difference Height between indoor and outdoor units H1 Upper outdoor unit 15 m ―
Lower outdoor unit 15 m ―
Height between indoor units H2 10 m ―
f
abcd
A
*1
L3
L1
L2
e
Outdoor unit
Height difference
between indoorand
outdoor units H1
Main
pipe
1st branching
section
Branching pipe Branching
header
Indoor unit
Y-shaped
branching joint
Branching pipe
Equivalent length corresponded to farthest piping L
Equivalent length corresponded to farthest piping after 1st branching Li
Height
difference
between indoor
units H2

18
3Refrigerant piping design
3-3. Selection of refrigerant piping
No. Piping parts Name Selection of pipe size Remarks
(1)
Outdoor unit
1st branching
section
Main pipe
Size of main pipe
Same as connecting pipe
size of the outdoor unit.
(2) Branching section
Branching section Branching pipe
Pipe size between branching sections Pipesizediffersbasedonthe
total capacity code value of
indoor units at the
downstream side. If the total
value exceeds the capacity
code of the outdoor unit,
applythecapacitycodeof the
outdoor unit.
(3) Branching section
Indoor unit
Indoor unit
connecting pipe
Connecting pipe size of indoor unit
(4) Branching section Y-shaped
branching joint
Selection of branching section (Y-shaped branching joint)
(5) Branching section Branching
header
Selection of branching section (Branching header)
(5)
(2)
(4)
(1)
(3) (3) (3) (3)
(2) (4)
(3)
(3)
Outdoor unit
Liquid pipe
Gas pipe
Main pipe 1st branching
section Branching pipe Branching header
Indoor
unit
Indoor
unit
Branching
pipe
Y-shaped
branching joint
→
Outdoor unit capacity type Gas pipe Liquid pipe
0404 type 15.88 9.52
0504 type 15.88 9.52
0604 type 19.05 9.52
→
Total capacity codes of indoor units at down
stream side Gas pipe Liquid pipe
Equivalent to HP Equivalent to capacity
Below 2.4 Below 6.6 12.70 9.52
2.4 to below 6.4 6.6 to below 18.0 15.88 9.52
6.4 or more 18.0 or more 19.05 9.52
→
Capacity rank Gas pipe Liquid pipe
005 to 012 type 9.52 6.35
014 to 018 type 12.70 6.35
020 to 056 type 15.88 9.52
Model name
Y-shape branch joint RBM-BY55E
Model name
Branching header For 4 branches RBM-HY1043E
For 8 branches RBM-HY1083E

19
3Refrigerant piping design
3-4. Allowable length / height difference of refrigerant piping with PMV
Kit
*1 Furthest indoor unit from 1st branch to be named "A"
Allowable value Piping section
Pipe Length
Total extension of pipe (Liquid pipe, real length) 75 m L1 + L2 + L3 + a + b + c + d + e + f + g + h + i
+ j + k + l
Furthest piping length L(*1) Real length 40 m L1 + L3 + f + l
Equivalent length 50 m
Max. real length of main pipe 25 m L1
Max. real length of furthest piping from 1st branching Li (*1) 15 m L3 + f + l
Max. real length of indoor unit connecting pipe 10 m a + g, b + h, c + i, d + j, e + k, f + l
Real length between PMV Kit and indoor unit 2 m or more
Below 10 m g, h, i, j, k, l
Height
Difference Height between indoor and outdoor units H1 Upper outdoor unit 15 m ―
Lower outdoor unit 15 m ―
Height between indoor unit and PMV Kit H2 10 m ―
NOTE
Do not connect two or more indoor units to one PMV Kit.
Arrange one indoor unit and one PMV Kit set to 1 by 1.
KODOOGON
PMV Kit PMV Kit
tinuroodnItinuroodnI
e
l
f
ab
ghi j
cd
H2
H2
H2
A
*1
L3
L1 L2
k
Outdoor unit
Height
difference
between
indoor and
outdoor
units H1
Main
pipe
1st branching
section
Branching pipe Branching
header
Indoor unit
Y-shaped
branching joint
Branching pipe
Equivalent length corresponded to farthest piping L
Equivalent length corresponded to farthest piping after 1st branching Li
Height difference
betweenindoorunit
and PMV Kit H2 *
* Betweenhighest
unit and lower
units.
PMV Kit
Example)