Friedrich MD12Y3JM User manual

Multi Zone Air Conditioner
SVC MANUAL (Exploded View)
CAUTION
Before Servicing the unit, read the safety
precautions in General SVC manual.
Only for authorized service personnel.
MODEL: MD12Y3JM
960-920-06

1. Specification
Indoor unit type
Ceiling Concealed Duct - Low Static
Model
MD12Y3JM
Power Supply
Ø / V / Hz
1/ 208~230/ 60
Capacity(*)
Btu/h class
12,000
Current
Running Current
A
0.25
Fan
Motor Type
BLDC
Fan Type
Sirocco Fan
Motor Output(W) x No. of Unit
5 x 1, 19 x 1
Air Flow Rate
(H / M / L)
CMM
9.5 / 8.5 / 7.5
CFM
335 / 300 / 265
External Static Pressure
mmAq
4
Capacitor
μF / Vac
-
Drive
Direct Drive
Coil
Row x Column x FPI
2R x 12C x 21
Dimensions
(W x H x D)
Body
mm(inch)
820 x 190 x 575(32 9/32x7 1/2x 22 21/32)
Decorative Panel
mm(inch)
-
Net Weight
Body
kg (lbs)
20.5(45.2)
Decorative Panel
kg (lbs)
-
Air Filter
Long life filter
Sound Level (H / M / L)
dB(A)+3
33/ 31/26
Piping
Connections
Liquid
mm (inch)
6.35 (1/4)
Gas
mm (inch)
9.52 (3/8)
Drain(OD/ID)
mm(inch)
32/25(1.26/0.984)
Dehumidification Rate
l/h
1.2
Safety Devices
Fuse, thermal protector for fan motor
Temperature Sensor
Thermistor
Refrigerant
R410A
Refrigerant Control
EEV(in Outdoor unit)
Transmission Interunit Cable
No. x AWG
4 x 18 (Including Earth)
Note:
1. Capacities are based on the following conditions:
Cooling: - Indoor Temperature 26.7˚C(80˚F) DB/19.4˚C(67˚F)
- Outdoor Temperature 35˚C(95˚F) DB/23.9˚C(75˚F)
Heating: - Indoor Temperature 21.1˚C(70˚F) DB/15.6˚C(60˚F) WB
- Outdoor Temperature 8.3˚C(47˚F) DB/6.1˚C(43˚F) WB
Piping Length - Interconnecting Piping Length 7.5m(24.6 ft.)
- Level Difference of Zero
2. Wiring cable size must comply with the applicable local and national code.
3. The specification may be subject to change without prior notice for purpose of improvement.
4. For more Capacity(*),refer to the combination table
Conversion Formula
kW=Btu/hclassX0.0002931
cfm = CMM x 35.3
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2. Function Table
Category
Function
MD12Y3JM
Air flow
Air supply outlet
1
Airflow direction control(left & right)
-
Airflow direction control(up & down)
-
Auto swing(left & right)
-
Auto swing(up & down)
-
Airflow steps(fan / cool / heat)
03.3.3
Chaos swing
-
Chaos wind(auto wind)
X
Jet cool(Power wind)
X
Swirl wind
X
Air purifying
Deodorizing filter
X
Plasma air purifier
X
Prefilter(washable / anti-fungus)
O
Installation
Drain pump
O
E.S.P. control
O
Electric heater(operation)
X
High ceiling operation
-
Reliability
Hot start
O
Self-diagnosis
O
Soft dry operation
O
Convenience
Auto changeover
X
Auto cleaning
X
Auto operation(artificial intelligence)
O
Auto restart operation
O
Child lock
O
Energy-Saving Cooling Mode
X
Forced operation
X
Group control
O
Sleep mode
X
Timer(on/off)
X
Timer(weekly)
X
Two thermistor control
O
Individual
control
Wide wired remote controller
DWC1
Deluxe wired remote controller
-
Simple wired remote controller
O
Simple wired remote controller(for hotel use)
X
Wireless remote controller(simple)
X
Wireless LCD remote control
X
Wireless LCD remote control(Ez)
X
CAC network
function
General central controller (Non LGAP)
X
Dry contact
X
Central control(LGAP)
X
PDI(power distribution indicator)
X
PI 485
X
Special
function kit
CTIE
X
Zone control
X
Others
Thermistor
-
Note :
O : Applied, X : Not applied, - : No relation
* Option : Model name & price are different according to options, and assembled in factory with main unit.
* Accessory : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package.
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3. Piping Diagrams
Heating
H eat Exchanger
Gaspipe connection port
Flare connection
Cooling
M
-- 3
-- 1
Sirocco Fan
-- 2
Liquid pipe connection port
Flare connection
LOC.
Description
PCB Connector
Th1
Thermistor for suction air temperature
CN_ROOM
Th2
Thermistor for evaporator inlet temperature
CN_PIPE
Th3
Thermistor for evaporator outlet temperature
CN_PIPEOUT
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4. Wiring Diagrams
CN_REMO CN_PIPE/IN CN_POWER
CN_PIPE/OUT CN_ROOM
CN_D/PUMP
CN_CC
CN_DISPLAY
CN_OPTION CN_FLOAT CN_MOTOR1
CN_MOTOR2
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5. Exploded View
- 6 -

Model: MD12Y3JM
Loc No. Description
Friedrich
Part #
W4811
Bracket Assembly
67600702
130911
Cabinet Assembly,Indoor
67600808
249951
Case Assembly,Control(Indoor)
67600903
W6640
Connector,Terminal Block
67601407
354210
Evaporator Assembly,First
67602009
359012A
Fan Assembly,Blower
67602103
359012B
Fan Assembly,Blower
67602104
159830
Filter Assembly,Air Cleaner
67602200
W0FZZ
Fuse Assembly
67602302
352150
Hose Assembly,Drain
67602801
336600B
Housing,Wrapper
67602903
336600A
Housing,Wrapper
67602904
346810A
Motor Assembly,DC,Indoor
67603305
346810B
Motor Assembly,DC,Indoor
67603310
346810B
Motor,DC
67603331
346810A
Motor,DC
67603332
330871
Pan Assembly,Drain
67603702
137211
Panel Assembly,Front(Indoor)
67603800
437213
Panel Assembly,Rear(Indoor)
67603815
268711C
PCB Assembly,Main
67603908
268711E
PCB Assembly,Option
67603917
158591
Pump Assembly,Water
67604100
267110
Remote Controller Assembly
67604300
263230C
Thermistor Assembly,NTC
67604822
263230B
Thermistor Assembly,NTC
67604805
263230A
Thermistor Assembly,NTC
67604809
263230A
Thermistor,NTC
67604825
263230B
Thermistor,NTC
67604827
352118B
Tube Assembly,Menifold(Indoor)
67606004
352118A
Tube Assembly,Menifold(Indoor)
67606005
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FriedrichAirConditioningCo. I10001ReunionPlace,Suite500 ISanAntonio,TX78216 I877.599.5665
www.friedrich.com
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