System - Mitsubishi Electric PAC-IF013B-E Para El Instalador

3. System

Step mode (Input) Target temperature
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
4
Number of outdoor unit
─
*1
13
14
12
8
7
2 1
<Fig. 3.1.1>
Intelligent multiple outdoor unit control
1 Not available
2-6
1-5 Not available
1-5 Not available
Return Air
(R.A.)
10 11
6
Supply Air
(S.A.)
5
9
See (1-1) below.
Apply See (2-1) below.
Not apply See (1-1) below.
See (1-2) below.
See (1-3) below.
*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-
voltage contact signals or analog signals to the interface
unit.
• Operation mode can be set by remote controller, external
input or DIP switch.
Note
• 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
request, and keep at least 5 minutes interval between the
changes.
• Keep operation range shown at the following section 3.3.
• Do NOT send STEP 0 during defrost operation.
• Do NOT change operation mode frequently.
No. Part name
1 Interface unit
2 Remote controller
3 Outdoor unit
4 Target air temp. thermistor (TH1)
5 Ref. liquid temp. thermistor (TH2)
6 2-Phase temp. thermistor (TH5)
7 HEX inlet (Coil on) temp. thermistor (TH11)
8 Air-Handling Unit (AHU) (Local supply)
9 AHU local controller (Local supply)
10 Heat exchanger of AHU (Local supply)
11 Target air temp. thermistor (Local supply)
12 Louver (Local supply)
13 Air filter (Local supply)
14 Heat recovery (Local supply)
15 Fan (Local supply)
*2. Set the DIP SW 2-8 to ON.
*3. If outdoor unit is SHW series, It's not needed to install
this thermistor, and set the DIP SW 1-5 to ON.
System
*1
System (1-1)
─ *2
*3