Sample Installation - Mitsubishi Electric e Series Service Handbook

[ II Restrictions ]

[4] Sample Installation

The system must be configured only by personnel certified by Mitsubishi Electric.
[1] Schematic Diagrams of Individual and Multiple Module Connection Systems
(1) Individual system
Refer to the sections "Switch Types and the Factory Settings" (page19) and
"System configuration procedures: Individual system" (page 22) for further details.
(2) Multiple module connection system (2-6 modules)
* A group of module that consists of one main module and up to 5 sub modules is operated collectively by connecting an external water temperature sensor
and a dry contact switch/relay to the main module.
SUB
PCB
MAIN module
Set point controlled with either:
•PAR-W21MAA or PAR-W31MAA
•Analog Input
•IT terminal
Refer to the sections "Switch Types and the Factory Settings" (page19)
and "System configuration procedures: Multiple module connection system" (page 23) for
further details.
*1 When connecting a pump to a module, be sure to also connect a flow switch and a pump interlock.
HWE1417B
SUB
PCB
1 2
MAIN SUB
PCB PCB
SUB module
External temperature
sensor (option)
Flow switch *1
Pump interlock *1
External
temperature
sensor (option)
MAIN
Flow switch
PCB
Pump interlock
Set point controlled with either:
•PAR-W21MAA or PAR-W31MAA
•Analog Input
•IT terminal
MAIN SUB
PCB PCB
SUB module
M-NET line
- 18 -
6
MAIN
PCB
GB