Air Volume Control By Contact Input - Mitsubishi Electric Mr. SLIM PEAD-RP60JA Technical Manual

■ Example of system flow
The following explains the system flow for duct damper open/close pattern
Condition:
Voltage decrease from 10.0V to 3.7V when duct damper changes from full-open to R1,R3 close.
Damper System Remote Controller
R1,R2,R3,R4 full-open operation
Damper System Remote Controller R1,R3
On site
Operation signal ON→OFF
Damper System Controller
Analog output 10.0V→3.7V
CN21 0-10V Analog input
Air volume
34m /min→22m /min
3 3

2. Air volume control by contact input

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).
Function change from Damper
No.
system controller
ON / OFF
1
2
Cooling/ Heating/ Fan
Air volume rate change
3
(Hi-Mid-Lo)
NOTE*1 In order to change functions
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,
*3 Combination of function
close
............<Section1-3>
10.0V→3.7V
Air volume step
.............<Section1-3>
V10→V4
Outdoor unit capacity rate
........<Section1,3>
100%→65%
MAC-397IF-E use
1 ~ 3 from MAC-397IF-E, contact input from damper system controller is required. Only one of the functions
1 ~ 3 functions only available from MA remote controller.
3 and analog input is not available.
~ shown in [Fig.1-4-3].
1 6
Indoor unit control board
switch setting
PEAD
SW1-1
Ο
OFF
Ο
OFF
Ο
OFF
5
PEFY
SW3-6
1 ~ 3 is