Mitsubishi PEFY-P71VMA-E, PEFY-P63VMA-E, PEFY-P80VMA-E, PEAD-RP71JA, PEFY-P100VMA-E Technical Manual

AIR CONDITIONERS

AIR VOLUME CONTROL TECHNICAL MANUAL

2009

Models

PEAD-RP60JA(L)
PEAD-RP71JA(L)
PEAD-RP100JA(L)
PEAD-RP125JA(L)
PEAD-RP140JA(L)

PEFY-P63VMA(L)-E
PEFY-P71VMA(L)-E
PEFY-P80VMA(L)-E
PEFY-P100VMA(L)-E
PEFY-P125VMA(L)-E
PEFY-P140VMA(L)-E

CONTENTS

1. Air volume control by analog input ......................2

2. Air volume control by contact input .....................5

3. Fan characteristic curves ....................................7

4. Restrictions .......................................................17

5. Wiring ...............................................................18

6. Function settings ...............................................20

1

2

Air volume control technical manual

Indoor unit air volume can be controlled with a opening-closing of a damper by either an analog input (CN2A) or a
contact input (CN105) to the air conditioning unit.
With the PEAD series, it is possible to cut energy consumption by controlling not only the air volume but also the
compressor capacity.

■

Corresponding model

Air volume can be controlled with the following models.
(

1) PEAD-RP60,71,100,125,140JA(L)

(2) PEFY-P63,71,80,100,125,140VMA(L)-E

NOTE:

Air volume control with analog input 0-10V is not available with the following models.
(

a) PEAD-RP35,50JA(L)

(b) PEFY-P20,25,32,40,50VMA(L)-E

■

System conguration

PEAD

Damper System Remote controller

Damper System
Controller

Indoor unit

Air inlet

Bypass damper

Damper

Outdoor unit

Field supply

MA Remote
controller

MAC-397IF-E *

Analog input
Contact input

CN2A

CN105

Supply connectors to CN2A and CN105 on site. (Refer to 5)
* MAC-397IF-E:MA & Contact terminal interface (optional)

PEFY

Damper System Remote controller

Damper System
Controller

Indoor unit

Air inlet

Bypass damper

Damper

Outdoor unit

Field supply

MA Remote
controller

MAC-397IF-E *

Analog input
Contact input

M-NET

CN2A

M-NET

CN105

Damper System Remote controller

Damper System
Controller

Indoor unit

Air inlet

Bypass damper

Damper

Field supply

MA Remote
controller

MAC-397IF-E *

Analog input
Contact input

CN2A

CN105

Centralized controller
(AG-150A)(optional)

Supply connectors to CN2A and CN105 on site.
* MAC-397IF-E:MA & Contact terminal interface (optional)

2

1-1. Air volume control

Indoor air volume can be controlled in 10 different stages from V1 to V10 with analog input 0-10V from
the damper system controller supplied on site.

0

10

20

30

40

50

60

70

80

90

100

V1 V2 V3 V4 V5 V6 V7 V8 V9 V10

Air volume stage (0-10V analog input)

Air volume rate (%)

PEAD-RP60,71JA(L)
PEFY-P63,71,80VMA(L)-E

PEAD-RP100,125,140JA(L)
PEFY-P100,125,140VMA(L)-E

*Air volume rate shows the value without change in
the external static pressure. For values in different
external static pressure, refer to 3. Fan characteristic
curves for details.

1-2. Outdoor unit capacity control

With the PEAD series, compressor capacity is controlled in accordance with air volume level in 10
stages from V1 to V10.
With the PEFY series, compressor capacity will not be controlled because numbers of indoor units are
connected. However, it is possible to reduce energy consumption with a change in the air volume
leading to compressor capacity control due to a change in condensing temperature.

0

10

20

30

40

50

60

70

80

90

100

V1 V2 V3 V4 V5 V6 V7 V8 V9 V10

Air volume stage (0-10V analog input)

Outdoor unit capacity rate (%)

* Outdoor unit capacity rate may change depending
on the outdoor temperature.

PEAD-RP60,71,100,125,140JA(L)

1. Air volume control by analog input

3

4

1-3. Analog input of voltage

With analog input of voltage, fan rotation and air volume in 10 stages from V1 to V10 can be controlled.

Air volume stages Analog input voltage(V)

Air volume

standard setting

(Damper System OFF) *1

V1 0.0~1.5

-

V2 1.0~2.5
V3 2.0~3.5
V4 3.0~4.5
V5 4.0~5.5
V6 5.0~6.5
V7 6.0~7.5 Low
V8 7.0~8.5

Middle

V9 8.0~9.5

V10 9.0~10.0 High

NOTE:
*1 In case of PEAD-RP JA(L) Dip SW 1-1 OFF, PEFY-P VMA(L)-E Dip SW 3-6 OFF, refer to 6-1.

■

Differentials of air volume stages V1 to V10

V2
V1

0

V6
V5
V4
V3

V10

V9
V8
V7

9.0 10.07.0 8.03.0 4.0 5.0 6.01.0 2.0

1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5

Air

Volume

stage

Input Voltage [V]

■

Example of analog input of voltage

When analog input changes

1

7.2V→27.5V→37.2V→47.0V→56.3V→66.0V→76.3V→

8

6.5V,

air volume stages are decided as

1

V7→2V8→3V8→4V7→5V7→6V6→7V6→

8

V7.

See drawing below for details.

V6

V8

V7

7.06.0

6.5 7.5

14

8

5

76

3 2

Air

Volume

stage

Input Voltage [V]

4

1-4. Example of air volume control 1

Air volume can be selected in the following order.

■

Condition:

1. R1- R4 indicates the air outlet of each indoor unit.

2. R4 fully open at all times.

3. Air volume designed as R1: 5m

3

/min, R2: 5m3/min, R3: 7m3/min, R4:17m3/min.

4. Rated air volume measured when R1 - R3 is fully open. (External static pressure set as 100Pa)

[Fig.1-4-1] Example of duct system

Damper System Remote controller

Damper System
Controller

Indoor unit

Air inlet

Bypass damper

Damper

Air outlet

R4

17m3/min 7m3/min 5m3/min 5m3/min

R3 R2 R1

Field supply

MAC-397IF-E *

Analog input
Contact input

CN105

CN2A

■

Selecting air volume stage V1~V10

Depending on the damper opening pattern R1-R3, patterns

1~8

as in the below chart is available. The air volume
stage is selected from the fan characteristic curve. (Refer to [Fig. 1-4-3])
Choose the pattern closest to the required air volume and which the diagram exceeds.
Duct pressure drop depends on the site conditions. Shown here are temporarily numbers in case of external static
pressure 100Pa.

Air Outlet R1 R2 R3 R4

Total Air volume

[m3/min]

Selected

Stage

Air Volume

[m3/min] 5 5 7 17 34 -

Air volume pattern

1

Open Open Open Open 34 V10

2

Close Open Open Open 29 V9

3

Open Close Open Open 29 V9

4

Close Close Open Open 24 V7

5

Open Open Close Open 27 V8

6

Close Open Close Open 22 V7

7

Open Close Close Open 22 V7

8

Close Close Close Open 17 V5

[Fig.1-4-2] Air volume pattern

*1~8in the below diagram [Fig.1-4-3] indicates the air volume pattern1~8shown in this chart [Fig. 1-4-2]

10 15 20 25 30 35 40 45

Airflow rate(m3/min)

External static pressure (Pa)

[Fig.1-4-3] Duct damper open/close

PEAD-RP100JA(L)

(External static pressure 100Pa) 220-240V 50/60Hz

0

20

40

60

80

100

120

140

160

V1

V4

V5

V6

V7

V8

V9

V10

V3
V2

8 6 7 2 3 14 5

Limit

Limit

5

6

■

Example of system ow

The following explains the system ow for duct damper open/close pattern

1~6

shown in [Fig.1-4-3].

Condition:
Voltage decrease from 10.0V to 3.7V when duct damper changes from full-open to R1,R3 close.

ޓ

On site

............<Section1-3>

.............<Section1-3>

........<Section1,3>

CN21 0-10V Analog input

10.0V→3.7V

Damper System Remote Controller R1,R3

close

Operation signal ON→OFF

Damper System Remote Controller

R1,R2,R3,R4 full-open operation

Air volume step

V10→V4

Damper System Controller
Analog output 10.0V→3.7V

Air volume

34m3/min→22m3/min

Outdoor unit capacity rate

100%→65%

2-1. Function control by MAC-397IF-E (CN105)

Following functions can be controlled from damper system controller by using MAC-397IF-E.

1. ON/OFF

2. Cooling/ Heating/ Fan mode

3. Air volume rate change (Hi-Mid-Lo)

PRECAUTION:

Multistage air volume control is not available via MAC-397IF-E.
In order to control multistage air volume and compressor capacity (PEAD series), use 0-10V analog input (CN2A).

No.

Function change from Damper

system controller

MAC-397IF-E use

Indoor unit control board

switch setting

PEAD PEFY
SW1-1 SW3-6

1

ON / OFF

Ο

OFF

2

Cooling/ Heating/ Fan

Ο

OFF

3

Air volume rate change

(Hi-Mid-Lo)

Ο

OFF

NOTE*1 In order to change functions1~3from MAC-397IF-E, contact input from damper system controller is required. Only one of the functions1~3is

available one at a time because setting is made by switching DIP-SW of MAC-397IF-E. Refer to the MAC-397IF-E manual for DIP-SW setting and
wiring.

*2 When not using MAC-397IF-E,

1~3

functions only available from MA remote controller.

*3 Combination of function

3

and analog input is not available.

2. Air volume control by contact input

6

2-2. Example of air volume control by contact input and analog input

Supply connecters to CN2A and CN105 on site. (Refer to 5).
* MAC-397IF-E:MA & Contact terminal interface (optional)

Refer to the MAC-397IF-E manual for DIP-SW setting and wiring.

MAC-397IF-E input

Damper System Remote controller

Damper System
Controller

Indoor unit

Bypass damper

Damper

Outdoor unit

Field supply

MA Remote
controller

CN2A

MAC-397IF-E *

CN105

CN105 CN560

Indoor unit MAC-397IF-E

Lead wires

Contact point a
(about 10mA)

Damper System Controller

1. Contact input
When either of the damper open/close with damper system controller,
ON/OFF signal via MAC-397IF-E.

2. Analog input
Air volume controllable with analog input to CN2A, controlling open/close
of duct damper.

* It is possible to directly command CN105 without MAC-397IF-E with
serial communication. For further details, contact your nearest distributor.

1 2 3 5 64

■Dip switch (SW500) setting

(1) Contact input

ON

2 43 5 6 7 81

Air inlet

←(2) Analog input

CN591

2-3. Example of air volume control with xed static pressure

This example shows how to keep duct static pressure at a constant level with analog input.

Damper System Remote controller

Damper System
Controller

Indoor unit

Air inlet

Bypass damper

Damper

air outlet

R4

17m3/min 7m3/min 5m3/min 5m3/min

R3 R2 R1

Field supply

MAC-397IF-E *

Analog input

Contact input

CN105

CN2A

Check air volume at each air outlet when R1-R4 is full open and set static pressure as target value. Then, analog
input to keep the static pressure at this target value even when either of the damper closes.
With MAC-397IF-E as in section 2-2, it is also possible to stop the indoor unit when all duct damper closes.

*Refer to the 1-3 for air volume differentials to prevent hunting.

7

8

With an analog input of 0-10V, indoor air volume can be controlled in 10 steps from V1 to V10.

Rated point

V1~4

V5

V6

V7

V8

V9

V10

Limit

Airflow rate(m3/min)

External static pressure (Pa)

10 15 20 25 30

0

20

40

60

PEAD-RP60JA(L)

(External static pressure 35Pa) 220-240V 50/60Hz

V1,2

V3

V4

V5

V6

V7

V8

V9

V10

Limit

Limit

Rated point

Airflow rate(m3/min)

External static pressure (Pa)

10 15 20 25 30

20

40

60

120

100

80

PEAD-RP60JA(L)

(External static pressure 100Pa) 220-240V 50/60Hz

Airflow rate(m3/min)

External static pressure (Pa)

10 15 20 25 30

0

40

20

60

80

PEAD-RP60JA(L)

(External static pressure 50Pa) 220-240V 50/60Hz

Rated point

V1,2

V3

V4

V5

V6

V7

V8

V9

V10

Limit

Airflow rate(m3/min)

External static pressure (Pa)

10 15 20 25 30

50

150

100

PEAD-RP60JA(L)

(External static pressure 150Pa) 220-240V 50/60Hz

Rated point

V1,2

V3

V4

V5

V6

V7

V8

V9

V10

Limit

Limit

Airflow rate(m3/min)

External static pressure (Pa)

10 15 20 25 30

0

100

20

40

60

80

PEAD-RP60JA(L)

(External static pressure 70Pa) 220-240V 50/60Hz

Rated point

V1,2

V3

V4

V5

V6

V7

V8

V9

V10

Limit

Limit

3. Fan characteristic curves