Mitsubishi Electric PQFY, PQFY-P140, PQFY-P250 Installation Manual

Water Heating Unit

PQFY

FOR INSTALLERS

INSTALLATION MANUAL

For safe and correct use, please read this installation manual thoroughly before installing the PQFY unit.

2

[Fig. 2.0.1]

C

A

B

D

E

A Thermistor

B Plastic clip

C Nylon clip

D Installation manual

E Insulation

1

6

[Fig. 6.0.1]

A

B

C

D

E

A Water pipe

B Cooling/heating thermistor

C Aluminium tape (field supply)

D Insulation

E Tie band

2

6

6

[Fig. 6.1.1]

A Outdoor unit

B Indoor fan coils

C TH1

D Water pump

E Underfloor piping

F PQFY

G TH1

H Water inlet pipe

F

A

B

H

G

C

D

E

[Fig.6.1.2]

A Outdoor unit

B TH1

C Water Pump

D Water Cylinder

E PQFY

A

D

C

E

B

3

6

[Fig. 6.1.3]

A

B Water pump

C Heat exchanger

D Water pump

E Pool water

F TH1H thermistor

G PQFY

H TH1H thermistor

I Return water pipe

Outdoor unit

H

A

G

B

C

E

D

I

F

4

7

[Fig. 7.0.1]

L

A

A

B Distand signal (ON/OFF)

C Operation Signal

D Error signal

E Relays

F M Net

G TH1H

H

I

J LEV Control

K Power

L Transformer

B

C

Printed circuit board

Liquid line thermistor

(internal)

Gas line thermistor

(internal)

D

E

5

J

F

I K H G