Mitsubishi Electronics PURY-P400, P500YMF-C specifications TH3, TH4, TH5, TH6, TH7, TH9, SV1

Outdoor unit

Name

Code

Product code

Application

Specification

Inspection method

(Function)

Thermistor

TH3

Detects liquid level of refrigerant inside

R0 = 15 kΩ

Resistance check

TH4

accumulator using the differences

B1/80 = 3460

(Liquid level

among TH2, TH3, TH4.

Rt =

1

1

detection)

15exp{3460(

-

)}

273

273+t

TH5

1 Frequency control.

0° C: 15 kΩ

(Pipe

2 Controls defrosting during heating.

10° C: 9.7 kΩ

temperature)

20° C: 6.4 kΩ

25° C: 5.3 kΩ

30° C: 4.3 kΩ

40° C: 3.1 kΩ

TH6

1 Detects the outdoor air temperature.

R0 = 15 kΩ

Resistance check

(Outdoor

2 Performs fan control, liquid level

B1/80 = 3460

temperature)

heater control, opening settings of

Rt =

1

1

LEV for oil return and other functions.

15exp{3460(

-

)}

273+t

273

TH7

Controls defrosfing during heating

°

Ω

(Pipe inlet

0 C: 15 k

10° C: 9.7 kΩ

heat ex-

20° C: 6.4 kΩ

changer

°

Ω

temperature)

25 C: 5.3 k

30° C: 4.3 kΩ

40° C: 3.1 kΩ

TH9

1) Detects the CS circuit fluid tempera-

ture.

2) Calculates the refrigerant circulation

configuration.

TH10

1) Detects the compressor shell

R120 = 7.465 kΩ

temperature.

B25/120 = 4057

2) Provides compressor shell over-

Rt =

heating protection.

7.465exp1

1

{4057(

-

)}

273+t

273+120

20° C: 250 kΩ

70° C:

34 kΩ

30° C: 160 kΩ

80° C:

24 kΩ

40° C: 104 kΩ

90° C: 17.5 kΩ

50° C:

70 kΩ

100° C: 13.0 kΩ

60° C:

48 kΩ

110° C:

9.8 kΩ

THHS inverter

Inverter cooling fan control using THHS

R50 = 17 kΩ

Resistance check

temperature.

B25/120 = 4170

heat sink tem-

Rt =

perature

1

1

17exp {4170 (

-

)}

273+t

323

0° C: 181 kΩ

10° C: 105 kΩ

20° C:

64 kΩ

25° C:

50 kΩ

30° C:

40 kΩ

40° C:

26 kΩ

Solenoid

SV1

1 Capacity control of high/low

AC 220 to 240 V

Conductivity test

pressure bypass when starting and

Open : conducting

using tester

valve

discharge-

stopping.

Close: not conducting

suction

2 Discharge pressure rise suppression.

bypass

SV22

Switching of capacity control valve inside

AC 220 to 240 V

No. 2 compressor (Switching between

Close: conducting

capacity

full load operation and unload operation)

Open : not conducting

control (full

(only P500 YMF-C).

load)

SV32

AC 220 to 240 V

Open : conducting

capacity

Close: not conducting

control

(unload)

SV4a

Capacity control and controlling the rise

discharge-

of high-pressure (Back-up of frequency

suction

control).

bypass

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