System - Mitsubishi Electric PAC-IF013B-E Installation Manual

3

System

Step mode (Input)
Manual
Auto
Supply air temp. control
Return air temp. control
*1. It is recommended to select Intelligent multiple outdoor unit control.
Design local AHU controller to make sure the following points.
• Minimum capacity request should be 20% or more of total capacity.
• Operate all outdoor units when outdoor temperature is below -15 °C.
3.1 System configuration (Single outdoor unit)
(1-1) Manual step mode
15
Exhaust Air
(E.A.)
Outdoor Air
(O.A.)
3
Target temperature Number of outdoor unit
─
*1
13
14
12
8
Return Air
7
2 1
<Fig. 3.1.1>
Intelligent multiple outdoor unit control
1
2-6
1-5
1-5
*1. Manual step mode:
• Variable capacity request signals for heat pump need to be
calculated by AHU local controller.
• AHU local controller can send "Capacity steps" by non-volt-
age contact signals, analog signals, or Modbus signal to the
interface unit.
(R.A.)
• Operation mode can be set by remote controller, external in-
put, DIP switch, or Modbus signal.
10
11
6
No.
1
Supply Air
2
(S.A.)
3
4
5
5
6
7
8
9
9
10
11
12
13
14
15
*2. If outdoor unit is PUHZ-SHW model, it's not needed to install
this thermistor.
Not available
Use
Not use
Not available
Not available
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)
Direct expansion (DX) coil (Local supply)
Target air temp. thermistor (Local supply)
Louver (Local supply)
Air filter (Local supply)
Heat recovery (Local supply)
Fan (Local supply)
System
See (1-1) below.
See (2-1) below.
See (1-1) below.
*1
See (1-2) below.
See (1-3) below.
System (1-1)
─
*2
3