Mitsubishi Electric PAC-SIF051B-E, Инструкция по установке и эксплуатации

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9.1.1 Requirements
<Outdoor unit>
(a) Up to 6 units can be connected.
(b) All the outdoor units must be of the same model.
(c) The outdoor units must be connected to slave units.
<FTC: Master unit>
Each slave unit is controlled by the master unit.
(a) The outdoor units must NOT be connected to the master unit.
Make sure that the master unit is powered by independent source.
(b) Wire the main remote controller to TBI.2 13-14 on the master unit.
(c) Wire the electric heater to the master unit.
<FTC: Slave unit>
The hydrobox or PAC-SIF051B-E or master unit is used as a slave unit
(a) Connect each outdoor unit to a slave unit.
(b) The main remote controller must NOT be wired to a slave unit.
9.2 Pipe work
Following is the system example of two outdoor units being connected in one system.
IMPORTANT NOTE
Keep the minimum amount of water required in the space heating circuit according to the number of outdoor units.
No. Component
Wiring
Master Slave 1 Slave 2
1 Booster heater (local supply)
2 Circulation pump1 (local supply)
3 Flow switch1 (local supply) *2
4 Flow temp. thermistor (THW1)
5 Return temp. thermistor (THW2)
6 Slave1 circulation pump1 (local supply)
7
Slave1 flow switch (local supply) *2
8 Slave1 flow temp. thermistor (THW1)
9 Slave1 return temp. thermistor (THW2)
10 Slave1 ref. liquid temp. thermistor (TH2)
*1
11 Slave2 circulation pump1 (local supply)
12
Slave2 flow switch (local supply) *2
13 Slave2 flow temp. thermistor (THW1)
14 Slave2 return temp. hermistor (THW2)
15 Slave2 ref. liquid temp. thermistor (TH2) *1
System 1: Heating/Cooling system
• Install a low loss header (local supply).
• Install booster heater toward the local system, relative to the low loss header.
*1 When the outdoor unit is split type, TH2 needs to be installed. <Fig. 9.2.1>
*2 For safety protection, it is recommended to install a flow switch.
4
8
9
5
6
2 1
7
13
15
14
11 12
3
10
9. Multiple outdoor units control
9.1 Wiring for multiple outdoor units control
To establish a larger system, up to 6 outdoor units of the same model can be con-
nected in one system.
Note: PUHZ-FRP outdoor unit is not available for multiple outdoor units control.
Max. 6 units
Outdoor unit Slave
Hydrobox
Hydrobox
FTC
(Master)
Master
Max. 6 units
FTC
(Master)
Master
Main remote
controller
FTC
(Slave)
Slave
FTC
(Slave)
Outdoor unit
Outdoor unit Outdoor unit
Flow temp. thermistor
Return temp. thermistor
Flow temp.
thermistor
Return temp.
thermistor
Outdoor unit (Packaged type)
Outdoor unit (Split type)
<Fig. 9.2.1>
Ref. liquid
temp.
thermistor
(TH2)
*1
*1 Refrigerant-water HEX
*1 Refrigerant-water HEX
*1
Low loss header
(local supply)
Heating/
Cooling
<Fig. 9.2.2>
Main remote
controller