17
Packaged and Split Rooftop Ventilator
Control Center Components
Main Control Center Components
Image represents a typical installation for MP-1-1 or MPE-2-1. Components and locations will vary on
MPE-4-0, MP and MPF models.
High Voltage Side
1. Power distribution block; high voltage
supply is terminated here
2. Fuse holders
3. Phase monitor
4. VFDs
5. Compressor motor contactors
6. Condensing fan motor contactors
7. Wheel motor contactor
8. Transformer
9. Unit Disconnect
Low Voltage Side
10. Microprocessor controller
11. Monitoring points
12. Low voltage terminal strip
13. Relays
14. Dirty filter switch
15. Wheel pressure switch
16. Outdoor airflow monitor
17. Exhaust airflow monitor
18. Digital scroll controller
Optional Indirect Gas-Fired Furnace
Note: In some models, two furnaces are installed to provide greater output. When two furnaces are installed, they are
in parallel and both will operate at the same time and the same output. Both furnaces will have identical controls.
1. Single-stage valve
2. Modulating valve
3. PCOE expansion board
4. Ignition controller
5. Transformer
6. Combustion blower
7. Burner manifold
8. Collector box
For further information on the optional furnace and its control center, see the Indirect Gas-Fired Heat lOM shipped
with the unit.
HIGH VOLTAGE SIDE
LOW VOLTAGE SIDE
5
1
2
3
6
7
8
2
5 6
2
14
15
16
17
18
13
12
11
10
4
4
4
9
Accessible via control center door
Accessible via compressor door
5
1
2
4
3
6
7
8
5
1
2
4
3
6
7
8
© 2017 Mitsubishi Electric US, Inc.
Premi
Sys
