How it Works
McQuay
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MWM-LW
Technical Manual
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McQuay MWM-LW, MCM-DW, MCM-EW, MCC-CW, MDB-BW Technical Manual

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TECHNICAL MANUAL
Chilled Water Fan Coil Units
MWM, MCK, MCM, MCC, MDB Series
MWM-LW MCK-EW
MCK-CW
MCC-CW
MCM-DW/EW
V1
Table of Contents
“McQuay” is a registered trademark of McQuay International. All rights reserved.
@ 2013 McQuay International. All rights reserved throughout the world.
Bulletin illustrations cover the general appearance of McQuay International products at the time of publication.
We reserve the right to change design and construction specifi cations at any time without notice.
Table of Contents
Nomenclature......................................................................................................................1
Application Information .....................................................................................................9
Installation Guide .........................................................................................................10
Sound Data ........................................................................................................................15
NC Curve .....................................................................................................................22
Selection Process.............................................................................................................43
Engineering & Physical Data ........................................................................................... 58
Outlines & Dimensions ....................................................................................................69
Wiring Diagrams ............................................................................................................. 101
Service & Maintenance ..................................................................................................116
Troubleshooting .............................................................................................................117
Nomenclature
1
Nomenclature (Wall Mounted Fan Coil Unit)
M WM 10 L W – A C E D A - R
Brand
M : McQuay
Product Type
WM : Wall Mounted
Operating Mode
E : Cooling Only H : Heatpump
Size (Cooling/Heating)
07 : 8,300/11,000 btu/hr 10 : 9,200/12,000 btu/hr 15 : 11,300/15,000 btu/hr
20 : 15,500/20,500 btu/hr
25 : 18,000/25,000 btu/hr
Product Series
L : L series
Product Specification Variation
A : First Issue
Grille
D : Grille D
Electrical Characteristics
A : 50Hz / 1Ph / 220-240V K : 60Hz / 1Ph / 208-230V
Model
W : Chilled Water Fan Coil
Market Region
C : Export with CE Mark
RoHS Compliance
Nomenclature
2
Nomenclature (Cassette Fan Coil Unit C series)
M CK 10 C W – A X AB - R
Brand
M : McQuay
Product Type
CK : Ceiling Cassette
Size (Cooling/Heating)
10 : 8,500/12,000 btu/hr 15 : 14,000/16,000 btu/hr 20 : 15,500/18,000 btu/hr
Product Series
C : C series
Electrical Characteristics
A : 50Hz / 1Ph / 220-240V
Model
W : Chilled Water Fan Coil
Type of ref. connection
X : Not applicable
RoHS Compliance
Product Specification Variation
Nomenclature
3
Nomenclature (Cassette Fan Coil Unit A series)
M CK 25 A W – A X AB - R
Brand
M : McQuay
Product Type
CK : Ceiling Cassette
Size (Cooling/Heating)
20 : 22,500 / 28,500 btu/hr 25 : 25,500 / 32,000 btu/hr 30 : 30,000 / 37,500 btu/hr 40 : 33,500 / 40,500 btu/hr 50 : 36,500 / 44,000 btu/hr
Product Series
A : A series
Electrical Characteristics
A : 50Hz / 1Ph / 220-240V
Model
W : Chilled Water Fan Coil
Type of ref. connection
X : Not applicable
RoHS Compliance
Product Specification Variation
Piping
H : 4 pipes system
Nomenclature
4
Nomenclature (Ceiling Cassette E series)
M CK 20 E W – A E C A A - R
Brand
M : McQuay
Product Type
CK : Ceiling Cassette
Controller
C : W3 Control Module with DC swing
Size (Cooling/Heating)
20 : 20,000 / 28,000 btu/hr 25 : 25,000 / 33,600 btu/hr 30 : 30,000 / 38,300 btu/hr 40 : 38,000 / 45,500 btu/hr 50 : 43,000 / 52,000 btu/hr
Product Series
E : E series
Product Specification Variation
A : First Issue
Motor
A : AC motor
Electrical Characteristics
A : 50Hz / 1Ph / 220-240V
Model
W : Chilled Water Fan Coil
Market Region
E : Export w/o marking
RoHS Compliance
Nomenclature
5
Nomenclature (Ceiling Mounted D series)
M CM 25 D W – A X AB - R
Brand
M : McQuay
Product Type
CM : Ceiling Mounted
Size (Cooling/Heating)
20 : 17,000 / 22,000 btu/hr 25 : 20,800 / 25,900 btu/hr 30 : 24,600 / 28,000 btu/hr 40 : 31,200 / 42,300 btu/hr 50 : 45,000 / 51,500 btu/hr
Product Series
D : D series
Electrical Characteristics
A : 50Hz / 1Ph / 220-240V
Model
W : Chilled Water Fan Coil
Type of ref. connection
X : Not applicable
RoHS Compliance
Product Specification Variation
Nomenclature
6
Nomenclature (Ceiling Mounted E series)
M CM 15 E W – A X AB - R
Brand
M : McQuay
Product Type
CM : Ceiling Mounted
Size (Cooling/Heating)
10 : 15,500 / 19,500 btu/hr 15 : 20,300 / 25,000 btu/hr 20 : 21,000 / 28,000 btu/hr
Product Series
E : E series
Electrical Characteristics
A : 50Hz / 1Ph / 220-240V
Model
W : Chilled Water Fan Coil
Type of ref. connection
X : Not applicable
RoHS Compliance
Product Specification Variation
Nomenclature
7
Nomenclature (Ceiling Concealed)
CC 010 CM W – A X AC – R
RoHs Compliance
Brand
M : McQuay
Product Type
CC : Ceiling Concealed
Size (Cooling/Heating)
010 : 9,900/11,500 btu/hr 015 : 11,600/15,000 btu/hr 020 : 18,000/23,000 btu/hr 025 : 22,500/29,000 btu/hr 028 : 26,000/33,000 btu/hr 030 : 28,000/36,000 btu/hr 038 : 35,200/43,000 btu/hr 040 : 38,000/46,000 btu/hr 050 : 47,000/57,000 btu/hr 060 : 54,000/67,000 btu/hr
Type of ref. connection
X : Not applicable F : For Flare
Product Series
C : C series
Electrical Characteristics
A : 50Hz / 1Ph / 220-240V
Model
W : Chilled Water Fan Coil
Product Specification Variation
Nomenclature
8
Nomenclature (Ducted Blower B series)
M DB 75 B W – A X AB - R
Size (Cooling/Heating)
75 : 75,600 / 78,000 btu/hr 100 : 95,000 / 97,500 btu/hr 125 : 125,000 / 138,000 btu/hr 150 : 150,000 / 170,000 btu/hr
Brand
M : McQuay
Product Type
DB : Ducted Blower
Product Series
B : B series
Electrical Characteristics
A : 50Hz / 1Ph / 220-240V F : 50Hz / 3Ph / 380-415V
Model
W : Chilled Water Fan Coil
Type of ref. connection
X : Not applicable
RoHS Compliance
Product Specification Variation
9
Application Information
Application Information
Model: MWM Series Operating Limits:
Thermal carrier : Water Water temperature : 4°C ~ 10°C (Cooling), 35°C ~ 50°C (Heating) Maximum water pressure : 16 bar
Air temperature : (as below)
Cooling Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor temperature
19.0 / 66.2 14.0 / 57.2
Maximum indoor temperature
32.0 / 89.6 23.0 / 73.4
Heating Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor temperature
15.0 / 59.0 -
Maximum indoor temperature
27.0 / 80.6 -
Ts: Dry bulb temperature. Th: Wet bulb temperature.
Model: MCK Series Operating Limits:
Thermal carrier : Water Water temperature : 4°C ~ 10°C (Cooling), 35°C ~ 50°C (2 Pipes), 35°C ~ 70°C (4 Pipes) Maximum water pressure : 16 bar Air temperature : (as below)
Cooling Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor temperature
16.0 / 60.8 11.0 / 51.8
Maximum indoor temperature
32.0 / 89.6 23.0 / 73.4
Heating Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor temperature
16.0 / 60.8 -
Maximum indoor temperature
30.0 / 86.0 -
Ts: Dry bulb temperature. Th: Wet bulb temperature.
Model: MCC Series Operating Limits:
Thermal carrier : Water Water temperature : 5 ~ 50°C Maximum water pressure : 16 bar
Air temperature : (as below)
Cooling Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor temperature
19.0 / 66.2 14.0 / 57.2
Maximum indoor temperature
32.0 / 89.6 23.0 / 73.4
Heating Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor temperature
15.0 / 59.0 -
Maximum indoor temperature
27.0 / 80.6 -
Ts: Dry bulb temperature. Th: Wet bulb temperature.
Model: MDB Series Operating Limits:
Thermal carrier : Water Water temperature : 4°C ~ 10°C (Cooling), 35°C ~ 70°C (Heating) Maximum water pressure : 16 bar
Air temperature : (as below)
Cooling Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor temperature
19.0 / 66.2 14.0 / 57.2
Maximum indoor temperature
32.0 / 89.6 23.0 / 73.4
Heating Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor temperature
15.0 / 59.0 -
Maximum indoor temperature
27.0 / 80.6 -
Ts: Dry bulb temperature. Th: Wet bulb temperature.
10
Application Information
Installation Guide
System Confi guration
The standard controller board (W2/W3) comes with a VALVE jumper and a HEAT jumper. The system can be confi gured as the jumper selection listed below:
HEAT Jumper VALVE Jumper
Heatpump Mode & Valve Application √√ Heatpump Mode & Valveless Application √ X Cooling Mode & Valve Application X √
Cooling Mode & Valveless Application XX
√ Jumper Remained X Jumper Removed
Caution
Disconnect the power supply to the unit before attempting to connect the wiring
Valve, Heat and Fan Priority Setting
Model: MWM-LW Series
HEAT
VALV E
BLACK
N
CN_FAN
CN_PGRM CN_WIR CN_DSP
VALVE HEAT
VALV E
CN_STP
CN_ID COIL
CN_FAN FB
L
BLACK (LIVE)
RED (FAN CAP)
WHITE (NEUTRAL)
Valve Jumper
Heat Jumper
WHITE
BROWN
BLACK
BLUE
BLUE
RED
G/Y
NOTATION
FM : FAN MOTOR
AS : AIR SWING MOTOR TH1 : INDOOR COIL THERMISTOR TH2 : ROOM THERMISTOR
-WITH JUMPER FOR HEAT PUMP
-WITHOUT JUMPER FOR COOLING ONLY
-WITH JUMPER FOR VALVE APPLICATION
FIELD WIRING
-WITHOUT JUMPER FOR VALVELESS APPLICATION
2/3 WAY VALVE
L
POWER SUPPLY
TH2
TH1
DISPLAY BOARD
WIRED
CONTROLLER
(OPTIONAL)
N E
VALV E
N1 N L
AS
FM
11
Application Information
Model: MCK/MCC Series
HTR
L
Heat Jumper Fan Priority Jumper
N2
LIVE
N1
HI
MED
LOW
CN_TW
CN_PGRM
CN_WIR
ROOM
CN_STP
C_SENH_SEN
HEAT
VA LV E
CN_DSP
SHED
M4
M3
M2
M1
TFULL A_FRZ W_OPEN UNOCP
SLIENT
CVLV
HVLV
WTP
AS
CN_DRY
Valve Jumper
CO_DRAFT
Jumper With Jumper (Default) Without Jumper
Fan Priority Jumper
User set speed or lower fan if auto mode is selected
Fan Stop when thermostat cat off
Heat Jumper For Heat pump For Cooling only
Valve Jumper For valve control For valveless control
MCK-AW/EW 4 pipes system controller board setting
A) Model selection
Model 1
Model 2
Model 3
Model 4
HTR
L
N2
LIVE
N1
HI
MED
LOW
CN_TW
CN_PGRM
CN_WIR
ROOM
CN_STP
C_SENH_SEN
HEAT
VA LV E
CN_DSP
SHED
M4
M3
M2
M1
TFULL A_FRZ W_OPEN UNOCP
SLIENT
CVLV
HVLV
WTP
AS
CN_DRY
CO_DRAFT
The standard controller board (W2.0/W3.0) comes with a default setting for model selec­tion. Please select the model accordingly by using jumper.
12
Application Information
System Model Function
2 Pipe System
4 Pipe System
M1 ­Model 1
M2 ­Model 2
M3 ­Model 3
M4 ­Model 4
Cooling or Heating
Cooling or Heating with Auxiliary Heater
Cooling Only with Boiler
Cooling or Heating with Boiler
FCU
FCU
FCU
FCU
FCU
FCU
FCU
FCU
Mini Chiller (Cooling Only)
Mini Chiller (Cooling Only)
Boiler
Boiler
Mini Chiller (Cooling / Heating)
Mini Chiller (Cooling / Heating)
C) Others
The controller board comes with other option.
L
COMP
TRANSFORMER
UNOCP A_FRZ W_OPEN TFULL SHED
Unoccupied Mode
Anti Freeze Mode
Window Open Mode
Connect to Level Switch
Load Shedding Mode
i) Unoccupied Mode If the dry contact is closed, the Unoccupied mode is activated and vice versa. When Timer On is active, system goes back to Occupied mode. The dry contact connection points can be connected parallel with other fan coil unit (FCU) boards. If the dry contact is closed, Unoccupied mode will be activated on all fan coil units that are connected parallel as shown in fi gure below.
13
Application Information
ii) Anti Freeze Mode Anti Freeze operation has the highest priority among all unit operation. Anti Freeze operation will be activated only if dry contact is closed and vice versa. iii) Window Open Mode The dry contact connection points can be connected in parallel with other fan coil unit (FCU) boards. If the dry contact is closed, Window open mode will be activated on all the fan coil units which are connected in parallel as shown in fi gure below. iv) Load Shedding The dry contact connection points can be connected in parallel with other fan coil unit (FCU) boards. If the dry contact is closed, Load shedding mode will be activated on all the fan coil units which are connected in parallel as shown in fi gure below.
Global Unoccupied, Global Window Open and Global Load Shedding operation could also be activated via the network communication bus line by master controller with or without the above connection.
NOTE : i) Auto Fan Mode is only applicable in Model 3 only. (Cooling only with Boiler) ii) Fan mode is not available in valveless control. iii) Wired handset has an indoor room sensor. Avoid locating the wired handset at isolated places where room temperature reading will be inaccurate.
14
Application Information
Cable Size
Model Unit MWM07/10/15/20/25LW MWM301W
MCK020/025/030/
040/050AW
Power supply cable size* mm² 1.5 2.5 1.5
Number of wire 3 3 3
Recommended fuse* A 2 20 2
Model Unit
MCK020/025/030/
040/050AWH
MCM020/025/
030/040/050DW
MCM015/020EW
Power supply cable size* mm² 1.5 1.5 2.5
Number of wire 3 3 3
Recommended fuse* A 2 2 2
Model Unit MCM025EW MCK10/15/20CW MCK20/25/30/40/50EW
Power supply cable size* mm² 4.0 1.5 1.5
Number of wire 3 3 3
Recommended fuse* A 2 2 2
Model Unit MCC10/15/20/25/28CW MCC30/38/40CW MCC50/60CW
Power supply cable size* mm² 1.5 1.5 1.5
Number of wire 3 3 3
Recommended fuse* A 5 10 16
Model Unit MDB75/100BW MDB125/150BW
Power supply cable size* mm² 1.5 1.5
Number of wire 3 4
Recommended fuse* A 5 5
Important: * These values are for information only. They should be checked and selected to comply local or national codes and regulations. They are also subjected to the type of installation and size of conductors.
15
Sound Data
Sound Data
Sound Pressure Level
Model Speed
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20μPa
Overall
(dBA)
Noise
Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MWM07LW
High 31 32 33 28 26 14 6 34 28
Med
25 29 28 24 19 9 5 29 22
Low 20 26 24 20 11 8 6 25 18
MWM10LW
High 30 33 33 32 28 17 8 35 31
Med
26 29 30 27 21 11 7 30 25
Low 19 25 25 21 14 6 6 25 19
MWM15LW
High 41 39 39 38 36 26 14 42 38
Med
38 36 37 34 32 22 10 39 33
Low 30 30 31 28 23 12 7 32 26
MWM20LW
High 37 38 38 39 33 22 11 42 38
Med
33 35 35 35 29 17 8 38 34
Low 29 33 32 31 23 12 7 34 30
MWM25LW
High 42 42 42 42 40 31 21 46 42
Med
37 38 39 38 34 24 13 42 37
Low 34 35 36 35 30 20 9 39 34
*MWM301W
High 42 46 45 44 41 35 28 49 43
Med
40 45 44 43 38 33 27 47 42
Low 37 43 43 40 35 30 26 45 39
Microphone position: 1m in front and 0.8m/*1m below the vertical centre line of the unit.
Model Speed
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20μPa
Overall
(dBA)
Noise
Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCK020AW/
AWH
High 46 45 40 38 32 21 14 42 37
Med
44 43 37 33 28 18 12 39 32
Low 43 42 35 31 26 17 11 37 31
MCK025AW/
AWH
High 48 46 43 39 33 27 19 45 38
Med
45 43 40 35 29 21 15 42 35
Low 43 42 38 32 27 19 14 40 33
*MCK030AW/
AWH
High 50 48 47 43 37 35 28 49 42
Med
48 45 43 38 32 31 27 45 38
Low 46 43 41 35 30 30 26 43 36
*MCK040AW/
AWH
High 50 49 49 46 39 38 31 51 45
Med
48 47 47 43 36 34 25 48 42
Low 46 45 46 41 34 30 23 46 41
*MCK050AW/
AWH
High 54 52 51 48 43 42 34 53 47
Med
52 50 50 46 41 40 32 52 46
Low 51 49 49 45 39 39 31 50 45
Microphone position: 1.4m/*1.5m below the face center of the air return of the unit.
16
Sound Data
Model Speed
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20μPa
Overall
(dBA)
Noise
Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCK010CW
High
44 45 40 36 26 19 10 42 35
Med
40 38 34 28 19 9 7 35 29
Low
37 32 27 20 14 7 7 29 21
MCK015CW
High
48 48 44 39 31 27 15 45 39
Med
42 42 36 30 22 13 7 38 31
Low
39 36 28 20 15 6 6 30 23
MCK020CW
High
52 51 46 41 34 31 19 48 41
Med
44 43 39 33 26 18 8 40 33
Low
41 39 35 28 22 11 7 36 30
Microphone position: 1.4m below the face center of the air return of the unit.
Model Speed
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20μPa
Overall
(dBA)
Noise
Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCK020EW
High
44 43 42 35 29 23 15 42 37
Med
40 40 38 30 23 16 14 38 33
Low
35 34 32 23 15 10 14 32 26
MCK025EW
High
48 47 45 39 34 28 17 46 40
Med
44 42 42 34 28 21 10 42 37
Low
39 37 36 26 19 10 6 35 31
*MCK030EW
High
49 48 46 42 37 35 22 48 41
Med
44 44 42 36 32 27 14 43 37
Low
41 39 37 31 26 17 8 38 32
*MCK040EW
High
51 49 49 45 37 36 24 50 45
Med
48 46 47 40 33 31 18 47 43
Low
44 42 43 35 28 23 10 43 38
*MCK050EW
High
53 54 50 47 39 38 28 52 46
Med
49 48 47 43 36 35 25 49 43
Low
46 45 44 39 32 30 22 45 39
Microphone position: 1.4m/*1.5m below the face center of the air return of the unit.
Model Speed
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20μPa
Overall
(dBA)
Noise
Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCM020DW
High
45 46 47 46 41 38 29 50 45
Med
42 43 45 42 38 34 24 47 41
Low
36 37 39 35 31 24 15 40 34
MCM025DW
High
48 51 51 50 45 41 33 54 49
Med
47 50 50 49 44 40 32 53 48
Low
45 47 48 47 41 36 27 50 46
*MCM030DW
High
45 48 48 47 43 33 24 51 46
Med
44 47 47 46 42 32 23 50 45
Low
43 45 45 44 39 29 20 48 43
*MCM040DW
High
51 53 51 50 47 37 30 54 49
Med
48 51 50 49 46 36 28 53 48
Low
46 50 49 48 44 35 27 52 47
*MCM050DW
High
51 53 51 50 47 37 30 54 49
Med
48 51 50 49 46 36 28 53 48
Low
46 50 49 48 44 35 27 52 47
Microphone position: 1m in front of the unit and 0.8m/*1m below the air discharge opening.
17
Sound Data
Model Speed
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20μPa
Overall
(dBA)
Noise
Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCM15EW
High 42 46 49 44 43 36 31 50 45
Med
36 40 43 37 36 27 20 43 38
Low 34 38 41 34 33 23 15 41 36
MCM20EW
High 45 47 51 48 47 40 34 53 48
Med
43 46 49 46 44 37 31 51 45
Low 42 46 47 44 42 35 27 49 43
MCM25EW
High 47 50 53 50 50 43 39 56 51
Med
44 46 49 46 45 38 33 51 46
Low 38 40 43 38 37 28 22 44 38
Microphone position: 1m in front of the unit and 1m below the air discharge opening.
Model Speed
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20μPa
Overall
(dBA)
Noise
Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCC010CW
High 43 35 35 30 26 18 13 36 30
Med
43 34 34 28 25 17 12 35 29
Low 42 31 31 27 22 14 9 33 25
MCC015CW
High 46 40 40 33 29 21 17 40 35
Med
45 38 38 31 27 18 14 38 33
Low 40 33 33 26 21 11 9 33 28
MCC020CW
High 47 41 43 35 31 24 19 42 38
Med
47 41 41 34 31 23 18 41 36
Low 47 39 39 33 29 21 16 40 34
MCC025CW
High 48 41 40 35 31 24 19 41 35
Med
47 39 39 34 29 22 17 40 34
Low 44 35 35 30 25 17 12 36 30
MCC028CW
High 45 42 39 35 31 26 22 41 34
Med
42 38 37 32 28 22 17 38 32
Low 36 33 33 27 23 16 11 34 27
MCC030CW
High 50 45 43 42 37 31 26 46 41
Med
45 40 40 38 32 26 20 42 37
Low 42 36 37 33 28 22 15 38 32
MCC038CW
High 54 51 48 46 41 36 31 51 45
Med
51 48 46 45 37 32 26 48 44
Low 47 45 44 41 34 28 22 45 40
MCC040CW
High 54 47 47 45 39 35 29 49 44
Med
49 42 43 41 35 31 24 45 40
Low 45 39 41 37 30 26 18 41 36
MCC050CW
High 54 49 49 48 43 37 32 52 47
Med
53 47 46 47 40 35 29 50 46
Low 51 45 44 44 36 32 26 47 43
MCC060CW
High 55 49 49 50 44 37 33 53 49
Med
53 46 47 47 39 34 28 50 46
Low 51 43 44 43 35 30 24 47 42
Microphone position: 1.5m below the centre of the unit. (Tested with 2m length duct at the air discharge outlet and air return inlet)
18
Sound Data
Model Speed
1/1 Octave A-Weighted Sound Pressure (dBA), ref 20μPa
Overall
(dBA)
Noise
Criteria
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MDB075BW
High 57 50 47 44 40 35 24 50 43
Med
57 46 44 40 35 30 17 46 41
Low 48 42 41 35 30 24 6 42 36
MDB100BW
High 57 53 50 50 44 40 31 54 49
Med
55 51 49 48 42 38 28 52 47
Low 54 50 48 46 40 35 25 50 45
MBD125BW High 57 55 56 53 51 46 38 58 53 MDB150BW High 57 55 56 53 51 46 38 58 53
Microphone position: 1m in front of the unit and center of the unit. 1m away from every side of the unit and 1m above fl oor level.
Sound Power Level
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MWM07LW
High 40 43 44 41 36 23 19 45
Med
39 40 40 37 29 20 28 41
Low 38 37 35 32 21 16 23 36
MWM10LW
High 48 45 46 44 38 28 20 48
Med
48 41 42 40 32 18 19 44
Low 45 37 38 35 24 14 18 39
MWM15LW
High 48 50 52 51 46 38 26 55
Med
45 47 49 47 41 32 22 50
Low 43 42 44 41 34 22 18 45
MWM20LW
High 50 51 53 51 42 33 20 55
Med
47 49 50 48 38 27 17 51
Low 45 46 47 44 33 22 17 47
MWM25LW
High 53 55 55 55 50 40 26 59
Med
48 51 52 50 42 33 21 54
Low 45 48 50 47 38 29 18 51
MWM301W
High 50 55 62 59 54 43 32 64
Med
50 53 61 57 51 41 30 61
Low 48 51 58 54 48 37 24 58
Measured In Reverberation Chamber
19
Sound Data
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCK020AW/
AWH
High 59 57 50 46 42 32 28 52
Med
58 56 47 43 38 31 27 50
Low 57 55 46 42 36 30 26 49
MCK025AW/
AWH
High 60 58 52 49 43 37 31 55
Med
57 55 49 45 39 33 28 52
Low 55 53 47 42 37 32 27 50
MCK030AW/
AWH
High 64 62 57 54 47 35 40 60
Med
60 58 54 49 42 41 39 56
Low 59 57 52 47 40 39 37 54
MCK040AW/
AWH
High 64 62 60 56 49 46 37 61
Med
62 60 58 53 46 42 34 59
Low 61 59 57 51 44 38 33 57
MCK050AW/
AWH
High 67 65 63 59 53 52 44 64
Med
66 64 61 57 51 51 42 63
Low 65 63 60 56 49 49 41 61
Measured In Reverberation Chamber
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCK010CW
High 53 56 49 43 35 28 21 52
Med
47 49 42 35 26 20 19 45
Low 43 44 36 27 19 14 19 39
MCK015CW
High 56 58 55 50 42 38 29 56
Med
50 51 48 41 32 26 20 49
Low 47 49 45 37 27 20 19 45
MCK020CW
High 56 58 55 50 42 38 29 56
Med
50 51 48 41 32 26 20 49
Low 47 49 45 37 27 20 19 45
Measured In Reverberation Chamber
20
Sound Data
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCK020EW
High 53 54 52 45 35 31 19 52
Med
50 51 48 39 29 23 17 47
Low 46 45 42 32 22 14 17 41
MCK025EW
High 58 58 55 48 39 37 25 55
Med
53 53 51 43 33 29 18 51
Low 49 48 45 36 28 21 17 45
*MCK030EW
High 59 61 56 51 43 44 31 58
Med
54 55 52 46 38 36 23 53
Low 50 50 47 40 32 26 17 47
*MCK040EW
High 60 60 58 54 45 45 33 59
Med
57 57 56 50 41 40 26 56
Low 53 53 51 44 35 32 19 51
*MCK050EW
High 64 66 61 55 48 48 37 62
Med
59 60 57 52 44 44 32 58
Low 56 56 54 48 40 38 25 55
Measured In Reverberation Chamber
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCM020DW
High 58 62 58 56 52 47 39 61
Med
56 60 57 54 50 44 35 59
Low 52 55 51 48 43 34 28 53
MCM025DW
High 64 68 64 63 57 54 47 67
Med
63 67 63 62 56 53 46 66
Low 61 64 61 60 53 49 41 63
MCM030DW
High 62 65 62 60 54 46 38 64
Med
61 64 61 59 53 456 37 63
Low 58 62 59 57 51 42 34 61
MCM040DW
High 67 70 64 63 59 50 44 67
Med
64 68 63 62 58 49 42 66
Low 62 67 62 61 56 48 41 65
MCM050DW
High 67 70 64 63 59 50 44 67
Med
64 68 63 62 58 49 42 66
Low 62 67 62 61 56 48 41 65
Measured In Reverberation Chamber
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCM15EW
High 26 37 45 44 44 37 30 50
Med
20 31 40 37 37 28 19 43
Low 18 29 37 34 34 24 14 41
MCM20EW
High N/A N/A N/A N/A N/A N/A N/A 53
Med
N/A N/A N/A N/A N/A N/A N/A 51
Low N/A N/A N/A N/A N/A N/A N/A 49
MCM25EW
High 31 42 50 50 51 44 38 56
Med
28 37 46 46 46 39 32 51
Low 22 32 40 38 38 29 20 44
Measured In Reverberation Chamber
21
Sound Data
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCC010CW
High 57 54 52 52 51 46 44 57
Med
54 51 50 49 48 43 39 54
Low 51 48 47 46 44 39 35 51
MCC015CW
High 60 58 57 56 54 48 44 61
Med
56 55 54 53 50 44 40 58
Low 51 50 49 48 44 37 34 52
MCC020CW
High 63 62 61 61 59 55 51 65
Med
61 61 59 60 58 53 49 64
Low 57 56 56 56 53 48 44 60
MCC025CW
High 63 62 61 62 59 56 53 66
Med
61 60 59 60 57 53 50 64
Low 58 57 56 57 54 49 47 61
MCC028CW
High 59 61 58 61 57 54 52 64
Med
56 57 55 57 54 50 48 61
Low 52 53 51 53 50 45 41 57
MCC030CW
High 65 66 68 69 65 63 60 73
Med
61 62 64 65 61 58 55 69
Low 56 58 60 61 57 53 49 64
MCC038CW
High 70 70 71 72 68 66 64 76
Med
67 67 68 70 65 62 60 73
Low 65 64 65 66 61 58 56 70
MCC040CW
High 65 68 70 72 68 66 64 76
Med
65 65 67 68 64 62 59 72
Low 59 61 63 64 60 59 54 68
MCC050CW
High 67 69 71 72 69 66 64 76
Med
66 66 69 69 66 63 61 73
Low 63 64 66 67 62 60 57 70
MCC060CW
High 69 70 72 74 71 69 68 78
Med
69 68 70 71 67 65 63 75
Low 64 65 67 67 63 61 59 71
Measured In Reverberation Chamber
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MDB075BW
High 68 67 72 70 65 65 57 74
Med
64 64 68 65 61 59 51 69
Low 61 60 63 60 56 53 43 65
MDB100BW
High
71 71 74 74 70 70 63 78
Med
70 69 73 72 68 68 60 76
Low 67 67 71 69 65 64 56 73
MDB125BW High 75 76 75 72 69 65 60 77 MDB150BW High 75 76 75 72 69 65 60 77
Measured In Reverberation Chamber
22
Sound Data
NC Curve
MWM07LW
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M
L
MWM010LW
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20PPa)
NC-20
NC-30 NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M L
23
Sound Data
MWM15LW
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20PPa)
NC-20
NC-30 NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M
L
MWM20LW
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M
L
24
Sound Data
MWM25LW
0
10
20
30
40
50
60
70
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20PPa)
NC-20
NC-30 NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H
M
L
125 250 500 1000 2000 4000 8000
MWM301W
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M L
25
Sound Data
MCK020AW/AWH
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M
L
MCK025AW/AWH
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M
L
26
Sound Data
MCK030AW/AWH
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M
L
MCK040AW/AWH
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H
M
L
27
Sound Data
MCK050AW/AWH
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H M L
MCK10CW
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20μPa)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
NC-55
H
M
L
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