Mitsubishi Electronics MUZ-GB50VA service manual Refrigerant System Diagram, Unitmm

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REFRIGERANT SYSTEM DIAGRAM

MUZ-GB50VA

OUTDOOR UNIT

Unit:mm

Muffler 4-way valve #100

Refrigerant pipe [12.7
(with heat insulator)
Stop valve
(with service port)				Outdoor
Flared connection	Discharge
				heat		Ambient
	temperature		Defrost	exchanger		temperature
	thermistor					thermistor
	RT62		thermistor			RT65
			RT61
	Compressor
				Outdoor heat
				exchanger
				temperature
				thermistor
Flared connection				RT68
	Strainer	LEV		R.V. coil
			Strainer		Refrigerant flow in cooling
Receiver #100			#100	OFF
				ON	Refrigerant flow in heating
Stop valve	Capillary tube
Refrigerant pipe [6.35	[3.6✕[2.4✕50
(with heat insulator)

MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE

		Refrigerant piping : m		Piping size O.D : mm
Model
	Max. length		Max. Height difference
	A		B	Gas	Liquid
MUZ-GB50VA	30		15	12.7	6.35

Indoor unit

Max. Height

difference

B

Max. length

A

Outdoor unit

ADDITIONAL REFRIGERANT CHARGE (R410A:g)

Model	Outdoor unit			Refrigerant piping length (one way)
	precharged	7m	10m		15m	20m	25m	30m
MUZ-GB50VA	1,500	0	60		160	260	360	460

Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)

NOTE : Refrigerant piping exceeding 7m requires additional refrigerant charge according to the calculation.

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