Daikin VRV IV-S Series Dimension Guide

EDMT331529A
RXYMQ4-6AVE
RXYMQ8/9AY1
Heat Pump 50 Hz

EDMT331529A
Table of Contents 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Introduction ................................................................................................................. 2
Part 1 General Information ............................................... ................................ 3
Part 2 Indoor Units................................................................................................... 23
Ceiling Mounted Cassette (Round Flow with Sensing) Type... ................25
Ceiling Mounted Cassette (Round Flow) Type ....................... ................43
Ceiling Mounted Cassette (Compact Multi Flow) Type........... ................61
4-Way Flow Ceiling Suspended Type..................................... ................81
Ceiling Mounted Cassette (Double Flow) Type ...................... ................93
Ceiling Mounted Cassette Corner Type.................................. ..............115
Slim Ceiling Mounted Duct Type ............................................ ..............131
Ceiling Mounted Duct Type .................................................... ..............157
Ceiling Mounted Duct Type .................................................... ..............197
Ceiling Suspended Type......................................................... ..............211
Wall Mounted Type................................................................. ..............227
Floor Standing Type / Concealed Floor Standing Type.......... ..............243
Floor Standing Duct Type ....................................................... ..............269
Part 3 Residential Indoor Units with Connection to
BP Units.................................................................. ............................ 299
Part 4 BP Units.................................................................. ............................ 347
Part 5 Outdoor Units Heat Pump 50Hz ............................. .......... 365
Part 6 Installation of Outdoor Units ................................. ............................ 435
Part 7 Option of Control .................................................... ............................ 525
Part 8 Guide Specifications .............................................. ............................ 529
1
FXFQ-S
2
FXFQ-LU
3
FXZQ-M
4
FXUQ-A
5
FXCQ-M
6
FXKQ-MA
7
FXDQ-PB / FXDQ-NB
8
FXMQ-P
9
FXMQ-MA
10
FXHQ-MA
11
FXAQ-P
12
FXLQ-MA / FXNQ-MA
13
FXVQ-N
14
15
16
RXYMQ-AVE / RXYMQ-AY1
17
18
19
20

Introduction EDMT331529A
2Introduction
1. Introduction
1.1 Publication List of Engineering Data for VRV Products
Refrigerant Type Product Series Book No. Type, Hz Model name Area Note Published
in
R410A
Air
cooled
Inverter
T
EDMT341421A H/P 50 Hz
High-COP type
(Energy Saving Type)
RXYQ12-50THY1(E)
Standard type
(Space saving type)
RXYQ6-20TY1(E)
RXYQ22-50TSY1(E)
RXYQ52-60TNY1(E)
Argentina,
Chile,
Uruguay
and other
50 Hz
countries
of Latin
America
- Revision for
EU Biocidal
Product
Regulation
Aug. 2017
EDMT371515 H/R 50 Hz
High-COP type
REYQ16-32THY1(E)
Standard type
REYQ8-60TY1(E)
Argentina,
Chile,
Uruguay
and other
50 Hz
countries
of Latin
America
- Addition of
indoor and BS
units
May 2015
Inverter
A
EDMT331529 H/P 50 Hz RXYMQ4-6AVE
RXYMQ8/9AY1
Argentina,
Chile,
Uruguay
and other
50 Hz
countries
of Latin
America
- New lineup of
outdoor units Sep. 2015
EDMT331529A H/P 50 Hz RXYMQ4-6AVE
RXYMQ8/9AY1
Argentina,
Chile,
Uruguay
and other
50 Hz
countries
of Latin
America
- Revision for
EU Biocidal
Product
Regulation
- Update of
FXVQ-N
Aug. 2017
Inverter
P
ED341014 H/P 50 Hz RQYQ8-48PY1 General - Outdoor unit
only Dec. 2010
ED341207 C/O 50 Hz RQQ8-48PY1 General - Outdoor unit
only Jul. 2012
Water
cooled
Inverter
PED30-942
H/P,H/R 50 Hz
H/P,H/R 60 Hz
RWEYQ8-30PY1
RWEYQ10-30PYL
RWEYQ10-30PTL
General
- New lineup of
Centralized BS
units
Dec. 2009
Option for all type OH14-01 50/60 Hz For indoor and outdoor
units General Option handbook Apr. 2014
Heat Reclaim Ventilator (VAM) GJ
EDMT711618 50/60 Hz VAM150-2000GJVE General Feb. 2017
Heat Reclaim Ventilator (VKM) GA(M) ED71-440B 50 Hz VKM50-100GAMV1
VKM50-100GAV1 General
-WithDXcoil
and humidifier
(VKM-GAM)
-WithDXcoil
(VKM-GA)
Mar. 2012
EDMT331529A as shown by .
H/P: Heat Pump
H/R: Heat Recovery
C/O: Cooling Only

EDMT331529A
General Information 3
1
Part 1
General Information
1. Model Names of Indoor/Outdoor Units....................................................4
1.1 Indoor Units ..............................................................................................4
1.2 Outdoor Units ...........................................................................................5
1.3 Air Treatment Equipment .........................................................................5
2. External Appearance...............................................................................6
2.1 Indoor Units ..............................................................................................6
2.2 Outdoor Units ...........................................................................................8
2.3 Air Treatment Equipment .........................................................................8
3. Nomenclature..........................................................................................9
4. Capacity Range.....................................................................................12
4.1 Capacity Range for VRV Indoor Units Only ...........................................12
4.2 Capacity Range for Mixed Combination of VRV and
Residential Indoor Units .........................................................................13
5. Selection Procedure..............................................................................14
5.1 Selection Procedure for VRV Indoor Units Only.....................................14
5.2 Selection Procedure for Mixed Selection of VRV and
Residential Indoor Units .........................................................................18

Model Names of Indoor/Outdoor Units EDMT331529A
4General Information
1. Model Names of Indoor/Outdoor Units
1.1 Indoor Units
VRV Indoor Units
Note: FXDQ has following 2 series, as shown below.
FXDQ-PBVET, NBVET: without a Drain Pump
FXDQ-PBVE, NBVE: with a Drain Pump
V1: 1 phase, 220-240V, 50Hz
VE: 1 phase, 220-240/220V, 50/60Hz
VM: 1 phase, 220-240/220-230V, 50/60Hz
Y1: 3 phase, 380-415V, 50Hz
Capacity range
2.2kW 2.8kW 3.6kW 4.5kW 5.6kW 7.1kW 8.0kW 9.0kW 11.2kW 14.0kW 16.0kW 22.4kW 28.0kW
Power
supply,
Standard
0.8HP 1HP 1.25HP 1.6HP 2HP 2.5HP 3HP 3.2HP 4HP 5HP 6HP 8HP 10HP
Capacity index 20 25 31.25 40 50 62.5 71 80 100 125 140 200 250
Ceiling
Mounted
Cassette
(Round Flow
with Sensing)
Type
FXFQ — 25S 32S 40S 50S 63S — 80S 100S 125S — — — VM
Ceiling
Mounted
Cassette
(Round Flow)
Type
FXFQ — 25LU 32LU 40LU 50LU 63LU — 80LU 100LU 125LU ——— V1
Ceiling
Mounted
Cassette
(Compact
Multi Flow)
Type
FXZQ 20M 25M 32M 40M 50M — — — — — — — — VE
4-Way Flow
Ceiling
Suspended
Type
FXUQ — — — — — — 71A — 100A — — — — VEB
Ceiling
Mounted
Cassette
(Double
Flow) Type
FXCQ 20M 25M 32M 40M 50M 63M — 80M — 125M — — —
VE
Ceiling
Mounted
Cassette
Corner Type
FXKQ — 25MA 32MA 40MA — 63MA ———————
Slim Ceiling
Mounted
Duct Type
FXDQ-
PBVE 20PB 25PB 32PB — — — — — — — — — —
FXDQ-
PBVET
20PB 25PB 32PB — — — — — — — — — —
FXDQ-
NBVE — — — 40NB 50NB 63NB — — — — — — —
FXDQ-
NBVET
— — — 40NB 50NB 63NB — — — — — — —
Ceiling
Mounted
Duct Type
FXMQ 20P 25P 32P 40P 50P 63P — 80P 100P 125P 140P — —
FXMQ———————————
200MA 250MA
Ceiling
Suspended
Type FXHQ — —
32MA —— 63MA —— 100MA ————
Wall Mounted
Type FXAQ 20P 25P 32P 40P 50P 63P — — — — — — —
Floor
Standing
Type FXLQ
20MA 25MA 32MA 40MA 50MA 63MA ———————
Concealed
Floor
Standing
Type
FXNQ 20MA 25MA 32MA 40MA 50MA 63MA ———————
Floor
Standing
Duct Type FXVQ — — — — — — — — — 125N — 200N 250N
Y1

EDMT331529A Model Names of Indoor/Outdoor Units
General Information 5
1
Residential Indoor Units with Connection to BP Units
Heat Pump
Note: BP Units are necessary for residential indoor units.
Residential Indoor Units can be connected with only Single Outdoor Units.
VM: 1 phase, 220-240/220-230V, 50/60Hz
BP Units
1.2 Outdoor Units
VE: 1 phase, 220-230/220V, 50/60Hz
Y1: 3 phase, 380-415V, 50Hz
1.3 Air Treatment Equipment
Heat Reclaim Ventilator (VAM series)
Note: For details, refer to Engineering Data ED71-613.
VE: 1 phase, 220-240/220V, 50/60Hz
Capacity range 2.0kW 2.5kW 3.5kW 5.0kW 6.0kW 7.1kW Power
supply,
Standard
Capacity index 20 25 35 50 60 71
Slim Ceiling
Mounted Duct Type
CDXS — 25EA 35EA — — —
VMA
FDXS — 25C 35C 50C 60C —
Wall Mounted Type
FTXJ — 25N 35N 50N — — VMVW
— 25N 35N 50N — — VMVS
FTXS
20D—————
VMA— 25E 35E — — —
— — — 50F 60F 71F
Type Model name
BP Units 3 Ports BPMKS967A3
2 Ports BPMKS967A2
Series Model name
Power supplyCapacity range 4 HP 5 HP 6 HP 8 HP 9 HP
11.2 kW 14.0 kW 16.0 kW 22.4 kW 24.0 kW
Capacity index 100 125 150 200 215
Heat pump RXYMQ 4A 5A 6A — — VE
———8A9A Y1
Series Model name Power supply
Heat Reclaim
Ventilator VAM 150GJ 250GJ 350GJ 500GJ 650GJ 800GJ
1000GJ 1500GJ 2000GJ VE

External Appearance EDMT331529A
6General Information
2. External Appearance
2.1 Indoor Units
VRV Indoor Units
Ceiling mounted cassette (Round flow with sensing) type
FXFQ-S
Ceiling mounted duct type
FXMQ-P
Ceiling mounted cassette (Round flow) type
FXFQ-LU
Ceiling mounted duct type
FXMQ-MA
Ceiling mounted cassette (Compact multi flow) type
FXZQ-M
Ceiling suspended type
FXHQ-MA
4-way flow ceiling suspended type
FXUQ-A
Wall mounted type
FXAQ-P
Ceiling mounted cassette (Double flow) type
FXCQ-M
Floor standing type
FXLQ-MA
Ceiling mounted cassette corner type
FXKQ-MA
Concealed floor standing type
FXNQ-MA
Slim ceiling mounted duct type
FXDQ-PB
FXDQ-NB
Floor standing duct type
FXVQ-N

EDMT331529A External Appearance
General Information 7
1
Residential Indoor Units with Connection to BP Units
BP Units
Slim ceiling mounted duct type
(700 mm width type)
CDXS-EA
Wall mounted type
FTXS-D
FTXS-E
Slim ceiling mounted duct type
(900/1,100 mm width type)
FDXS-C
Wall mounted type
FTXS-F
Wall mounted type
FTXJ-N
BPMKS967A3 (3 ports)
BPMKS967A2 (2 ports)

External Appearance EDMT331529A
8General Information
2.2 Outdoor Units
2.3 Air Treatment Equipment
RXYMQ4/5AVE RXYMQ6AVE
RXYMQ8/9AY1
Heat reclaim ventilator (VAM series)
VAM-GJ

EDMT331529A Nomenclature
General Information 9
1
3. Nomenclature
VRV Indoor Unit
Power supply symbol
VE: 1 phase, 220-240/220V, 50/60Hz
V1: 1 phase, 220-240V, 50Hz
VM: 1 phase, 220-240/220-230V, 50/60Hz
Y1: 3 phase, 380-415V, 50Hz
Indicates major design category
Capacity indication
Conversion to kW (Horsepower)
25: 2.8 kW (1 HP)
125: 14.0 kW (5 HP)
250: 28.0 kW (10 HP)
Refrigerant
Q: R410A
Shape
F: Ceiling Mounted Cassette (Round Flow with Sensing / Round Flow)
Z: Ceiling Mounted Cassette (Compact Multi Flow)
U: 4-Way Flow Ceiling Suspended
C: Ceiling Mounted Cassette (Double Flow)
K: Ceiling Mounted Cassette Corner
D: Slim Ceiling Mounted Duct
M: Ceiling Mounted Duct
H: Ceiling Suspended
A: Wall Mounted
L: Floor Standing
N: Concealed Floor Standing
V: Floor Standing Duct
Series category
X: Inverter
Unit category
F: Indoor unit for air cooled type
F 25 VMSQ
XF

Nomenclature EDMT331529A
10 General Information
Residential Indoor Unit (SPLIT)
Power supply symbol
VM: 1 phase, 220-240/220-230V, 50/60 Hz
V1: 1 phase, 220-240V, 50 Hz
Model change symbol
Progress with each design change
Capacity indication
Rated cooling capacity (kW at 50 Hz) × 10
Grade and refrigerant symbol
S: Inverter (High grade model), R410A
G: Inverter (Extra high grade model), R410A
Type
K: Inverter cooling only
X: Inverter heat pump
Shape
T: Wall mounted
D: Duct connected
Unit category
F: Indoor unit for pair or pair/multi use
C: Indoor unit for multi use
X 35 VMC AS
DF
Standard symbol
A: Australia
Front panel colour symbol
Suffixed when the model has colour variations
W: White
S: Silver

EDMT331529A Nomenclature
General Information 11
1
Outdoor Unit
Air Treatment Equipment
Heat Reclaim Ventilator (VAM series)
Power supply symbol
VE: 1 phase, 220-230/220V, 50/60Hz
Y1: 3 phase, 380-415V, 50Hz
Indicates major design category
Capacity indication
Conversion to kW (Horsepower)
4: 11.2 kW (4 HP)
6: 16.0 kW (6 HP)
9: 24.0 kW (9 HP)
Refrigerant
Q: R410A
Shape
M: Single outdoor unit
Type
Y: Heat Pump
Series category
X: Inverter
Unit category
R: Outdoor unit for air cooled type
M 4 VEAYR X Q
VE500 GJMAV
Power supply symbol
VE: 1 phase, 220-240/220V, 50/60Hz
Indicates major design category
Airflow rate (H) (m3/h)
Mounted type
Air
Ventilation

Capacity Range EDMT331529A
12 General Information
4. Capacity Range
4.1 Capacity Range for VRV Indoor Units Only
4.1.1 Combination Ratio
Note: If the operational capacity of indoor units is more than 130%, low airflow operation is enforced in all the indoor
units.
4.1.2 Outdoor Unit Combinations
Note: When selecting FXVQ with the Outdoor-air processing mode, use as a Pair system.
Combination with other indoor units is not permitted.
Combination ratio = Total capacity index of the indoor units
Capacity index of the outdoor units
Type Min. combination ratio
Max. combination ratio
Types of connected indoor units
VRV indoor units
Single outdoor units 50% 130%
Model RXYMQ4AVE RXYMQ5AVE RXYMQ6AVE RXYMQ8AY1 RXYMQ9AY1
kW 11.2 14.0 16.0 22.4 24.0
HP 45689
Capacity index 100 125 150 200 215
Total capacity
index of
connectable
indoor units
Combination
(%)
50% 50 62.5 75 100 107.5
100% 100 125 150 200 215
130% 130 162.5 195 260 280
Maximum number of connectable
indoor units 6 8 9 13 14

EDMT331529A Capacity Range
General Information 13
1
4.2 Capacity Range for Mixed Combination of VRV and Residential Indoor Units
4.2.1 Combination Ratio
Notes: *1 Involve the case of Residential indoor units only.
4.2.2 Outdoor Unit Combinations
Note: When selecting FXVQ with the Outdoor-air processing mode, use as a Pair system.
Combination with other indoor units is not permitted.
Combination ratio = Total capacity index of the indoor units
Capacity index of the outdoor units
Type Min. combination ratio
Max. combination ratio
Type of connected indoor units
VRV and Residential indoor units *1
Single outdoor units 80% 130%
Model RXYMQ4AVE RXYMQ5AVE RXYMQ6AVE RXYMQ8AY1 RXYMQ9AY1
kW 11.2 14.0 16.0 22.4 24.0
HP 45689
Capacity index 100 125 150 200 215
Total capacity
index of
connectable
indoor units
Combination
(%)
80% 80 100 120 160 172
100% 100 125 150 200 215
130% 130 162.5 195 260 280
Maximum number of connectable
indoor units 6 8 9 13 14

Selection Procedure EDMT331529A
14 General Information
5. Selection Procedure
5.1 Selection Procedure for VRV Indoor Units Only
5.1.1 Flowchart
5.1.2 Selection Example
The following is a selection example based on total heat load for cooling.
[1] Given conditions
-Design conditions
Indoor air temperature: 18°CWB / 25°CDB, Outdoor air temperature: 33°CDB
-Determine peak load of each room (and system peak load if necessary)
-Required heat load of each room
From the above heat load calculation, the maximum heat load for the system (system peak load) is 15.2 kW.
Room A Room H Room G Room F
Room B Room E
Room C Room D
Floor plan
Time Room A Room B Room C Room D Room E Room F Room G Room H Total
9:00 1.4 1.4 0.9 0.9 2.7 2.7 0.9 0.9 11.9
12:00 2.0 2.1 1.5 1.5 2.2 2.0 1.2 1.2 13.8
14:00 2.7 2.8 1.5 1.5 2.2 2.0 1.3 1.3 15.2
16:00 3.2 3.2 1.2 1.2 1.9 1.9 1.1 1.1 14.8
Total heat load (kW)
Provisionally select outdoor unit type and size based on limitation of combination ratio
Correct for cooling & heating capacity of the outdoor unit by the following items
VRV system selection is complete.
Confirm that the number of indoor units connected to the outdoor unit is within limitation.
Corrected capacity of the outdoor unit ≥Required total heat load to the outdoor unit
2) Use the system peak load1) Use the sum of the peak load of each room
Define required total heat load to outdoor unit
Indoor unit capacity corrected for indoor air temperature (WB) ≥ Required heat load × Safety factor for the indoor units
Yes
No
-Piping length, level difference
-Piping heat loss
-Safety factor for the outdoor unit
-Defrost (only for heating capacity)
-Outdoor air temperature
-Indoor air temperature
-Combination ratio
Given Conditions:
· Design temperature and humidity (indoor & outdoor)
· Required heat load of each room
· System peak load (if necessary)
· Piping length, level difference
· Specifications of indoor units (type and number)
Define safety factor for the indoor units and outdoor unit
[1]]Given conditions
[2]]Selection of indoor units
[3]]Selection of outdoor unit

EDMT331529A Selection Procedure
General Information 15
1
-Safety factor
In this example, safety factor is not used. (i. e., safety factor = 1.0)
[2] Selection of indoor units
Calculate total heat capacity of indoor units corrected for indoor air temperature.
In case design temperature of the indoor air falls between temperatures listed in the table, calculate the capacity by
interpolation.
The corrected total heat capacity of indoor units shall satisfy the maximum heat load of each room.
Capacity table of indoor unit
Cooling Capacity
TC: Total capacity: kW
SHC: Sensible heat capacity: kW
Selection results of indoor units
[3] Selection of outdoor unit
[3] –1 Define the required total heat load from the indoor units to the outdoor unit
Define the required total heat load (A) based on (1) the sum of the peak load of each room or (2) the system peak
load.
In this example, select an outdoor unit by (2).
Therefore, (A) = 15.2 kW
Room A Room B Room C Room D Room E Room F Room G Room H
Max. heat load
(kW) 3.2 3.2 1.5 1.5 2.7 2.7 1.3 1.3
Selected IDU FXMQ32PVE FXMQ32PVE FXMQ20PVE FXMQ20PVE FXMQ32PVE FXMQ32PVE FXMQ20PVE FXMQ20PVE
Corrected TC
(kW) 3.4 3.4 2.1 2.1 3.4 3.4 2.1 2.1
Level difference
10m
Select VRV indoor units FXMQ-P series for each room.
Equivalent pipe length 30m
Model Capacity
indication
Indoor air temp.
14.0˚CWB 16.0˚CWB 18.0˚CWB 19.0˚CWB 20.0˚CWB 22.0˚CWB 24.0˚CWB
20˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 30˚CDB 32˚CDB
TCSHCTCSHCTCSHCTCSHCTCSHCTCSHCTCSHC
FXMQ20PVE 20 1.5 1.5 1.8 1.8 2.1 1.9 2.2 1.9 2.2 1.9 2.3 1.8 2.3 1.8
FXMQ25PVE 25 1.9 1.8 2.3 2.0 2.6 2.3 2.8 2.3 2.8 2.2 2.9 2.1 3.0 2.2
FXMQ32PVE 32 2.4 2.1 2.9 2.4 3.4 2.7 3.6 2.8 3.6 2.7 3.7 2.7 3.8 2.6
FXMQ40PVE 40 3.0 2.9 3.6 3.4 4.2 3.8 4.5 3.8 4.6 3.7 4.7 3.5 4.8 3.6
FXMQ50PVE 50 3.8 3.6 4.5 4.1 5.2 4.5 5.6 4.6 5.7 4.5 5.8 4.3 5.9 3.6
FXMQ63PVE 63 4.8 4.2 5.7 4.9 6.6 5.4 7.1 5.5 7.2 5.4 7.4 5.3 7.5 5.2
FXMQ80PVE 80 6.1 5.3 7.2 6.1 8.4 6.9 9.0 7.0 9.1 6.9 9.3 6.6 9.5 6.6
FXMQ100PVE 100 7.6 6.4 9.0 7.3 10.5 8.3 11.2 8.5 11.3 8.4 11.6 8.1 11.9 7.8
FXMQ125PVE 125 9.4 8.0 11.3 9.2 13.1 10.3 14.0 10.5 14.2 10.4 14.5 10.1 14.9 9.7
FXMQ140PVE 140 10.8 9.0 12.9 10.4 15.0 11.7 16.0 12.0 16.2 11.9 16.6 11.5 17.0 11.3
∗In case of selection based on Total Heat Load and Sensible Heat Load, select indoor units which satisfy not
only the Total Heat Load but also the Sensible Heat Load of each room. The sensible heat capacity of
indoor units is to be corrected for indoor air temperature. If the design temperature of indoor air falls
between temperatures listed in table, calculate sensible heat capacity by using the bypass factor calculated
by interpolation for each indoor air temperature.

Selection Procedure EDMT331529A
16 General Information
[3] –2 Provisionally select outdoor unit
(1) Calculate CI (Capacity Index) of the selected indoor units.
CI of VRV indoor units
CI of FXMQ20PVE = 20
CI of FXMQ32PVE = 31.25
Calculate the total CI of the indoor units.
Total CI = 20 × 4 + 31.25 × 4 = 205
The combination ratio of RXYMQ-A shall be between 50% and 130%.
As the total CI of the indoor units is 205, outdoor units from 8 HP to 9 HP are connectable. Start from 8 HP which
is the smallest outdoor unit.
(3) Confirm that the number of the connected indoor units is within the limitation.
The number of the connected indoor units = 8
The Max. number of connectable indoor units of 8 HP outdoor unit = 13
[3] –3 Calculate the corrected capacity of the outdoor unit.
-Calculate the combination ratio of the system.
Total CI = 205, CI of RXYMQ8AY1 = 200
Combination ratio = 205 / 200 = 102.5%
(2) Provisionally select an outdoor unit based on the total CI of the indoor units
VRV Indoor Units
Capacity range
2.2kW 2.8kW 3.6kW 4.5kW 5.6kW 7.1kW 8.0kW 9.0kW 11.2kW 14.0kW 16.0kW 22.4kW 28.0kW
Power
supply,
Standard
0.8HP 1HP 1.25HP 1.6HP 2HP 2.5HP 3HP 3.2HP 4HP 5HP 6HP 8HP 10HP
Capacity index 20 25 31.25 40 50 62.5 71 80 100 125 140 200 250
Ceiling
Mounted
Duct Type FXMQ 20P 25P 32P 40P 50P 63P — 80P
100P 125P 140P —— VE
Model RXYMQ4AVE RXYMQ5AVE RXYMQ6AVE RXYMQ8AY1 RXYMQ9AY1
kW 11.2 14.0 16.0 22.4 24.0
HP 4568
Capacity index 100 125 150 200 215
Total capacity
index of
connectable
indoor units
Combination
(%)
50% 50 62.5 75 100 107.5
100% 100 125 150 200 215
130% 130 162.5 195 260 280
Maximum number of connectable
indoor units 6891314
9
100% 102.5% 110%
20.9 (B ) 23.0
∗ In case the outdoor air temperature, the indoor
air temperature, or the combination ratio falls
between temperatures listed in the table,
calculate the capacity by interpolation.
Connection ratio
Cooling capacity
(B) = 20.9 + (23.0 – 20.9) × (102.5 – 100) / (110 – 100)
= 21.43
RXYMQ8AY1 Cooling capacity (Te: 6˚C)
- Using the capacity table of the outdoor unit,
calculate the capacity (B) corrected for outdoor
air temperature, indoor air temperature, and
combination ratio.

EDMT331529A Selection Procedure
General Information 17
1
-Confirm capacity correction factor by piping length and level difference (K1)
-Calculate capacity correction factor by piping heat loss (K2)
(K2) = 1 + (heat loss factor per meter of piping × (equivalent piping length – 7.5m)) / 100
In cooling mode, heat loss factor per meter at 33°C is calculated as below.
Heat loss factor per meter = 0.022 + (0.030 – 0.022) × (33 – 30) / (35 – 30) = 0.0268
Using “Equivalent piping length = 30m” and “Heat loss factor per meter = 0.0268”,
(K2) = 1 + (0.0268 × (30 – 7.5)) / 100 = 1.006
-Calculate the corrected capacity of RXYMQ8AY1 (C) by using (K1) and (K2).
Corrected capacity of RXYMQ8AY1 (C) = (B) × (K1) / (K2) (add defrost correction factor for heating capacity)
21.43 × 0.95 / 1.006 = 20.24 (kW)
If the corrected capacity (C) is the same or greater than the required total heat load (A), selection is complete.
If (C) < (A), return to Procedure [3]–2 and provisionally select a larger outdoor unit.
In this example, 20.24 kW (C) ≥15.2 kW (A), so selection is complete.
Cooling Ambient temperature
Heat loss factor per
meter of piping (%)
5°C 10°C15°C20°C25°C30°C35°C40°C
0.000 0.000 0.004 0.009 0.014 0.022 0.030 0.038
Heating Ambient temperature
Heat loss factor per
meter of piping (%)
-15°C -10°C -5°C 0°C 5°C 10°C 15°C 20°C
0.100 0.093 0.086 0.078 0.071 0.064 0.057 0.049
(K1) = 0.95
0.95

Selection Procedure EDMT331529A
18 General Information
5.2 Selection Procedure for Mixed Selection of VRV and Residential Indoor Units
5.2.1 Flowchart
For the selection of residential indoor units, the following procedures shall be added to the standard selection of VRV
indoor units.
-Correct the capacity of VRV indoor units for “Evaporating temperature (Te: 9ºC)”. (only for cooling capacity)
-Correct the capacity of Residential indoor units for “Indoor air temperature”.
-Use Correction factor to calculate the capacity of outdoor units. (only for cooling capacity)
5.2.2 Selection Example
The following is a selection example based on total heat load for cooling.
[1] Given conditions
-Design conditions
Indoor air temperature: 18°CWB / 25°CDB, Outdoor air temperature: 33°CDB
-Determine the peak load of each room (and the system peak load if necessary)
Table of the required heat load of each room
Total heat load (kW)
-Safety factor
In this example, safety factor is not used. (i. e., safety factor = 1.0)
[2] Selection of indoor units
For VRV indoor unit selection (Room A, B, C)
In case of mixed selection of VRV indoor units and Residential indoor units,
correct the capacity of VRV indoor units for “Indoor air temperature” and “Evaporating temperature (Te: 9ºC)”.
In case design temperature of the indoor air falls between temperatures listed in the table, calculate the capacity by
interpolation.
-Capacity table of VRV indoor units
Cooling Capacity
TC: Total capacity
SHC: Sensible heat capacity: kW
Room A Room B Room C Room D Room E Room F Total
2.4 2.4 1.5 3.6 3.6 1.5 15.0
Level difference
10m
Equivalent pipe length 30m
Room A Room B Room C Room D Room E Room F
VRV indoor units (ducted) for Room A, B, C, and Residential indoor units (ducted) for Room D, E, F.
Model Capacity
indication
Indoor air temp.
14.0˚CWB 16.0˚CWB 18.0˚CWB 19.0˚CWB 20.0˚CWB 22.0˚CWB 24.0˚CWB
20˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 30˚CDB 32˚CDB
TCSHCTCSHCTCSHCTCSHCTCSHCTCSHCTCSHC
FXDQ20PBVE
FXDQ20PBVET 20 1.5 1.4 1.8 1.6 2.1 1.8 2.2 1.9 2.2 1.8 2.3 1.6 2.3
FXDQ25PBVE
FXDQ25PBVET 25 1.9 1.6 2.3 1.9 2.6 2.1 2.8 2.1 2.8 2.1 2.9 2.0 3.0
FXDQ32PBVE
FXDQ32PBVET 32 2.4 1.9 2.9 2.2 3.4 2.4 3.6 2.6 3.6 2.4 3.7 2.4 3.8
FXDQ40NBVE
FXDQ40NBVET 40 3.0 2.5 3.6 2.8 4.2 3.2 4.5 3.3 4.6 3.1 4.7 3.0 4.8
FXDQ50NBVE
FXDQ50NBVET 50 3.8 3.1 4.5 3.5 5.2 3.9 5.6 4.0 5.7 3.9 5.8 3.8 5.9
FXDQ63NBVE
FXDQ63NBVET 63 4.8 3.8 5.7 4.3 6.6 4.8 7.1 4.9 7.2 4.6 7.4 4.6 7.5
1.7
1.9
2.4
3.1
3.5
4.6