Mitsubishi Electronics MXZ-24UV User Manual download pdf (Page 20)

(1) LEV opening correction by suction super heat (COOL, DRY)

(Suction super heat) = (Minimum gas pipe temperature) - (Evaporation temperature)

When COOL and DRY , correct the LEV openings corrected from the table below

(2) Separate correction (COOL,DRY)

(When number of operation unit is 2 units or more)

(a) Correction by the separate super heat

Correct the LEV separately by temperature difference between each gas pipe temperature thermistor and evaporator

temperature thermistor.

1 Calculate each super heat of the unit from the expression below;

(Super heat) = (Gas pipe temperature thermistor) - (Evaporation temperature thermistor)

2 Select a minimum super heat from among them.

3 Correct an each LEV is corrected opening is corrected by difference between each super heat and minimum super

heat.

Suction superheat (S.H.)

LEV opening

correction (pulse)

more than 12

10 to12

8 to 10

6 to 8

6 or less

1 Suction super heat

(MIN gas pipe temperature thermistor - Evaporation temperature thermistor)

2 Each correction w 1

• (Each gas pipe temperature thermistor - Evaporation temperature thermistor)

• (Main pipe temperature thermistor - sub pipe temperature thermistor)

w 1 Perform this, when number of operation units is 2units or more

w 2 When the correction opening of suction super heat is 0, correct the LEV opening by dischaege temperature.

3 Discharge temperature

COOL DRY HEAT

••

•

w 2

•

w 2

•

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Mitsubishi Electronics MXZ-24UV User Manual Page 20