Friedrich MULTI ZONE MR24DY3JMA Product guide

ENGINEERING PRODUCT
DATA BOOK
MULTI ZONE
Wall-mounted
Ceiling cassette
Concealed duct
THE EXPERTS IN ROOM AIR CONDITIONING
960-942-06

MULTI ZONEMULTI ZONE
CONTENTS
Part 1 General information
Part 2 Product data
Part 3 Design and installation
Part 4 Special parts

Part 1 General information
MULTI ZONEMULTI ZONE
Step by step system selection process (reference)
(1) Calculate or obtain the maximum heat load for the area(s) to be air conditioned
(2)
(3)
(4)
(5)
1. Air conditioners should not be installed in areas where corrosive gases, such as acid gas
or alkaline gas, are produced.
2. If the outdoor unit is installed close to the sea shore, direct exposure to the sea breeze
should be avoided and choose an outdoor unit with anti-corrosion treatment.
CAUTION
Selection of BB unit and branch
Selection of the control system
Control wiring method
Description of devices
Electrical wiring
Electrical characteristics
Field wiring
Indoor unit specifications
Outdoor unit specifications
Capacity coefficient factor
Air flow and temperature distributions
MULTI ZONEMULTI ZONE

MULTI ZONEMULTI ZONE
Part 1 General information
1. Model line up
2. Nomenclature
3. Combination
4. Individual Control System

General information _ 1
Part 1 General information
MULTI ZONEMULTI ZONE
1. Model line up
1.1 Indoor units
Category External
Appearance
Model names
Capacity (kBtu/h Class)
9 12 18
Wall mounted
MW09Y3J MW12Y3J
MW18Y3J
Ceiling
cassette 4-way
MC12Y3JM
MC18Y3JM
Ceiling
concealed
duct
Low
static
pressure
MD09Y3JM
MD12Y3JMA MD18Y3JMA

1. Model line up
2_ General information
Part 1 General information
MULTI ZONEMULTI ZONE
Model Name MR48DEY3JM
No. of connectable indoor units
(Min. ~ Max.) 2~8
Total capacity index of connectable
indoor units
65
Power supply 208/230V, 1Ø, 60Hz
External
Appearance
Branch Distribution type
1.2 Outdoor units
Multiple Piping Type
Model Name MR24DY3JMA MR36TQY3JMA
No. of connectable indoor units
(Min. ~ Max.) 2 ~ 3 2 ~ 4
Total capacity index of connectable
indoor units
36 48
Power supply 208/230V, 1Ø, 60Hz
External
Appearance

General information _ 3
1. Model line up
Part 1 General information
MULTI ZONEMULTI ZONE
BB (Branch Box) unit
Branches
1.3 Accessory for Branch Distribution type Outdoor units
Branch
Type
No. of
BB Units
Accessory
Model Name
Specifications
Gas Liquid
External
Appearance
2 DYBK
To BB unit Ø19.05 (3/4)
Ø19.05 (3/4)
To ODU
Ø19.05 (3/4)
To BB unit Ø9.52 (3/8)
Ø9.52 (3/8)
To ODU
Ø9.52 (3/8)
No. of connectable indoor units(Min. ~ Max.) 1 ~ 4
Model name D4PBB
Connectable indoor unit capacity kBtu/h 9 ~ 24
External
Appearance

2. Nomenclature
4_ General information
Part 1 General information
MULTI ZONEMULTI ZONE
M R 24 D Y 3 J MA
Installation Type
M, MA : Multi Zone
Marketing Model
Electrical rating
1 : 115V, 1Ø, 60Hz
3 : 230V, 1Ø, 60Hz
Refrigeration Cycle
C : Cool Only
Y : Heat Pump
Application
Empty : Single
U : Universal
D : Multi Zone (Max. 3 Rooms)
TQ : Multi Zone (Max. 4 Rooms)
DE : Multi Zone (Max. 8 Rooms)
Capacity
9 : 9,000 Btu/h, 12 : 12,000 Btu/h,
18 : 18,000 Btu/h, 24 : 24000 Btu/h,
30 : 30,000 Btu/h, 36 : 36,000 Btu/h,
48 : 48,000 Btu/h
Model Type
W : Wall mounted
C : Cassette
D : Concealed Ducted
R : Outdoor component
WH : Wall mounted High SEER
RH : Outdoor high SEER
Series
Mini- split

General information _ 5
Part 1 General information
3. Combination
MULTI ZONEMULTI ZONE
3.1 Selection procedure
Outdoor units selection
In general, an outdoor unit may be selected as follows, though the location of the unit, and usage of the room, etc. should
be considered. The combination of indoor and outdoor units should be determined so that the sum of indoor unit capacity
index is smaller than the max. combination capacity of the outdoor unit. Up to max.8 indoor units can be connected to one
outdoor unit. It is recommended to choose a large capacity outdoor unit if the installation space is large enough.
Indoor units selection
Look up the table on combination of indoor and outdoor units, and determine the appropriate indoor unit capacity which sat-
isfies the given thermal load.
For proper system operation, refer to the following:
1) At least 2 indoor units should be connected to outdoor unit.
2) Total capacity of indoor units connected should be minimum 40% of outdoor unit above mentioned capacity.
3) Calculation method for total capacity index = sum up the capacity index of connected indoor units.
Model name
Heat pump
20,000 32,000 48,000
24,000 36,000 54,000
3 4 8
36 48 65
MR24DY3JMA MR36TQY3JMA MR48DEY3JM
Capacity
(Btu/h)
Connectable
indoor units
Maximum No. of
connectable indoor units
Cooling
Heating
Max. capacity index of
connectable indoor units
Unit Capacity(kBtu/h Class) 9 12 18
Capacity Index 9 12 18

6_ General information
Part 1 General information
MULTI ZONEMULTI ZONE
3. Combination
3.2 Combination of indoor and outdoor unit
The total capacity index of indoor units is the sum of capacity index of each unit and should be within the capacity index of
the outdoor unit.
Note:
1. * For more capacity information, refer to the combination tables.
2. The combination of indoor and outdoor units should be determined so that the sum of indoor unit capacity index is smaller
than the max. combination capacity of the outdoor unit. Refer to the combination table.
3. At least two indoor units should be connected.
9 9,000 O O O
12 12,000 O O O
18 18,000 O O O
12 12,000 O O O
18 18,000 O O O
9 9,000 O O O
12 12,000 O O O
18 18,000 O O O
Indoor units
Capacity*
Model type
Wall mounted
Ceiling cassette
4-way
Ceiling Concealed
Duct-Low static
Index Btu/h Class
Outdoor units
MR24DY3JMA MR36TQY3JMA MR48DEY3JM
348
Maximum No. of connectable indoor units

General information _ 7
Part 1 General information
MULTI ZONEMULTI ZONEMULTI ZONEMULTI ZONE
4. Individual Control System
4.1 Control system(standard)
These controllers will be provided with the respective indoor units.
Type
Simple
Wired remote
controller
Wireless remote
controller
Individual controller Applicable model
Ceiling Concealed Duct
(Low Static)
Wall mounted
Ceiling Cassette
TEMP
FAN
SPEED
OPER
MODE

MULTI ZONEMULTI ZONE
Part 2 Product data
n Indoor units
n Outdoor units

MULTI ZONEMULTI ZONE
n Indoor units
1. Wall Mounted
2. Ceiling cassette 4-way
3. Ceiling concealed duct - Low static pressure

MULTI ZONEMULTI ZONE
Wall Mounted
1. List of functions
2. Specifications
3. Dimensions
4. Piping diagrams
5. Wiring Diagrams
6. Capacity Tables
7.
Air flow and temperature distributions (reference data)
8. Sound levels
9. Controller
10. Installation

1. List of functions
Wall mounted _ 1
Part 2 Product data_Indoor units
MULTI ZONEMULTI ZONE
Note :
1. * : These functions need to connect the wired remote controller.
O : Applied, X : Not applied
Accessory model name : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate
package.
Category Functions
MW09Y3J
MW12Y3J
MW18Y3J
Air flow
Air supply outlet 1
Airflow direction control (left & right) Auto
Airflow direction control (up & down) Auto
Auto swing (left & right) O
Auto swing (up & down) O
Airflow steps (fan/cool/heat) 6 / 6 / 6
Chaos wind(auto wind) O
Surge (cool/heat) O / O
Swirl wind X
Air purifying
Triple filter (Deodorizing) X
Plasma air purifier X
Allergy Safe filter X
Long-life prefilter (washable / anti-fungus) O
Installation
Drain pump X
E.S.P. control X
Electric heater X
High ceiling operation X
Auto Elevation Grille X
Reliability
Hot start O
Self diagnosis O
Soft dry operation O
Convenience
Auto changeover X
Auto cleaning O
Auto operation(artificial intelligence) O
Auto Restart O
Child lock* O
Forced operation O
Group control* O
Sleep mode O
Timer(on/off) O
Timer(weekly)* O
Two thermistor control* O
Individual
controller
Wired remote controller DWC1
Deluxe wired remote controller X
Simple wired remote controller X
Simple Wired remote controller(for hotel use) X
Wireless remote controller O
Network
Solution
Dry contact X
PI 485(for Indoor Unit) X
Special
function kit
Zone controller X
CTI(Communication transfer interface) X
Electronic thermostat X
Others
Remote temperature sensor X
Group control wire X
Telecom shelter controller X
Connector for water level sensor O

Note :
1. Wiring cable size must comply with the applicable local and national code.
2. Due to our policy of innovation some specifications may be changed without notification.
3. Sound Level Values are measured at Anechoic chamber.
Therefore, these values can be increased owing to ambient conditions during opration.
4. Acceptable operating voltage: 187V-253V
Model Name MW09Y3J MW12Y3J MW18Y3J
Power Supply V, Ø, Hz 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60
Capacity Cooling Nominal Btu/h 9,000 12,000 18,000
Heating Nominal Btu/h 10,400 13,800 20,800
Casing Color - White White White
Dimensions Body W x H x D mm 895 × 289 × 210 895 × 289 × 210 1,030 × 325 × 250
W x H x D inch
35-1/4 x 11-3/8 x 8-9/32 35-1/4 x 11-3/8 x 8-9/32 40-9/16 x 12-25/32 x 9-27/32
Net Weight Body kg (lbs) 10.0 (22.1) 10.0 (22.1) 14.5 (32.0)
Heat Exchanger
(Row x Column x Fins per inch) x No. - (2 x 16 x 23) x 1 (2 x 16 x 23) x 1 (3 x 18 x 22) x 1
Face Area m2(ft2) 0.22 (2.37) 0.22 (2.37) 0.29 (3.07)
Fan
Type - Cross Flow Fan Cross Flow Fan Cross Flow Fan
Air Flow Rate H / M / L CMM 7.0 / 6.5 / 6.0 9.5 / 9.0 / 8.5 16.2 / 14.2 / 12.3
H / M / L CFM 247 / 230 / 212 335 / 318 / 300 572 / 501 / 434
Fan Motor
Type - BLDC BLDC BLDC
Output W x No. 14.4 x 1 14.4 x 1 76.0 x 1
Running Current A 0.20 0.20 0.30
Sound Pressure Level H / M / L dB(A) 33 / 30 / 27 39 / 36 / 31 37 / 33 / 28
Piping
Connections
Liquid mm(inch) 6.35 (1/4) 6.35 (1/4) 6.35 (1/4)
Gas mm(inch) 9.52 (3/8) 9.52 (3/8) 12.7 (1/2)
Drain (O.D. / I.D.) mm(inch) 21.5(27/32) / 16.0(5/8) 21.5(27/32) / 16.0(5/8) 21.5(27/32) / 16.0(5/8)
Safety Devices
- Fuse Fuse Fuse
-Thermal Protector for
Fan Motor
Thermal Protector for
Fan Motor
Thermal Protector for
Fan Motor
Power and Communication Cable (included Earth) No. x AWG 4C x 14 / 18 4C x 14 / 18 4C x 14 / 18
2. Specifications
2_ Wall mounted
Part 2 Product data_Indoor units
MULTI ZONEMULTI ZONE

Wall mounted _ 3
3. Dimensions
Part 2 Product data_Indoor units
MULTI ZONEMULTI ZONE
MW09Y3J MW12Y3J

3. Dimensions
4_ Wall mounted
Part 2 Product data_Indoor units
MULTI ZONEMULTI ZONE
MW18Y3J

Wall mounted _ 5
4. Piping diagrams
Part 2 Product data_Indoor units
MULTI ZONEMULTI ZONE
Gas pipe connection port
(flare connection)
Liquid pipe connection port
(flare connection)
Cooling
Heating
Thermistor for
Evaporator Inlet Temperature
Thermistor for
Indoor Air Temperature
Thermistor for Evaporator
Outlet Temperature
Heat Exchanger
Cross Flow Fan
M
n
Refrigerant pipe connection port diameters
Unit : mm(inch)
Notes : Description is expressed based on Cooling mode.
Model Gas Liquid
MW09Y3J
MW12Y3J Ø9.52(3/8) Ø6.35(1/4)
MW18Y3J Ø12.7(1/2) Ø6.35(1/4)
Description PCB Connector
Thermistor for Indoor Air Temperature CN_TH1
Thermistor for Evaporator Inlet Temperature
Thermistor for Evaporator Outlet Temperature CN_TH2
Water level sensor(Optional) CN_TH3
Models : MW09Y3J/ MW12Y3J/ MW18Y3J

5. Wiring diagrams
Models : MW09Y3J / MW12Y3J
Models : MW18Y3J
6_ Wall mounted
Part 2 Product data_Indoor units
MULTI ZONEMULTI ZONE