Mitsubishi Electric PAC-IF013B-E Manuel D'installation page 6

3. System
3.2. System configuration
(Intelligent multiple outdoor unit control
(2-1) Manual step mode (example)
15
Exhaust Air
(E.A.)
Outdoor Air
(O.A.)
3(Ref. address: 0)
3(Ref. address: 1)
3.3. Indoor operation range
Mode Number of outdoor unit
Cooling 1 or more
1
Heating
2 or more
6
)
*1
13
14
12
8
7
1(Main)
1(Sub)
2
<Fig. 3.2.1>
HEX inlet air temp. operation range
15 - 32 °C
0 - 28 °C
5 - 28 °C
*1. Interface system receives step request signal corre-
Note
• This intelligent multiple outdoor unit control function is
available only when Manual step mode is selected.
• Up to 6 outdoor units can be connected.
Return Air
• 2 different type of outdoor units (capacity and/or series) can
(R.A.)
be mixed,but connecting the same capacity outdoor units is
highly recommended.
• Ref. address setting on each outdoor unit is needed.
10
• Interface unit which connects to the Ref. address 0 outdoor
unit, becomes main interface unit.
6
11
• Connect AHU local controller (Part No. 9) to the main inter-
face unit.
• Connect ONE remote controller (Part No. 2) to the interface
Supply Air
unit.
(S.A.)
• Connect between the interface units with a remote control-
ler (daisy chain). MAX : 500m
• When using this function, set the DIP SW 1-8 of all inter-
face unit to ON.
5
• Do NOT select STEP 0 for 3 minutes after compressor is
ON. (Keep compressor ON for 3 minutes at least.)
• When changing STEP, make it less than 5 steps in a single
operation, and keep at least 5 minutes interval between the
changes.
• Keep operation range shown at the following section 3.3.
9 • Do NOT send STEP 0 during defrost operation.
• Do NOT change operation mode frequently.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
*2. Set the DIP SW 2-8 to ON.
*3. If outdoor unit is SHW series, It's not needed to install
spond to total capacity of outdoor units, and calculates
necessary capacity for each outdoor unit automatically.
Part name
Interface unit
Remote controller
Outdoor unit
Target air temp. thermistor (TH1)
Ref. liquid temp. thermistor (TH2)
2-Phase temp. thermistor (TH5)
HEX inlet (Coil on) temp. thermistor (TH11)
Air-Handling Unit (AHU) (Local supply)
AHU local controller (Local supply)
Heat exchanger of AHU (Local supply)
Target air temp. thermistor (Local supply)
Louver (Local supply)
Air filter (Local supply)
Heat recovery (Local supply)
Fan (Local supply)
this thermistor, and set the DIP SW 1-5 to ON.
System (2-1)
─ *2
*3