Toshiba RAV-SP180AT2-UL installation manual System Requirements, „ Piping Field supplied

Outdoor Unit Installation Manual

3 SYSTEM REQUIREMENTS

„Piping (Field supplied)

•Minimum refrigerant line length between the outdoor unit and indoor unit is 16.5” (5 m)

•Maximum pipe lengths

Allowable	Height difference		Number of
pipe length	(Indoor-outdoor H)
			bent portions
(ft (m))	(ft (m))
Total length	Indoor unit:	Outdoor unit:
L	Upper	Lower	10 or less
164’1” (50)	98’5” (30)	98’5” (30)

Figure of Single

Indoor Unit

Refrigerant charge

Length of refrigerant	Additional refrigerant
pipe connected to
indoor/outdoor unit
16’5” - 65’7”	None
(5 - 20 m)
*65’7” - 164’1”	Add 0.22 oz/ft (20 g/m) of
	refrigerant for piping that exceeds
(20 - 50 m)
	65’7” (20 m) up to 164’1” (50 m).

*Caution during addition of refrigerant

Max. amount of additional refrigerant is 1.8 lbs (800 g).

Charge the refrigerant accurately. Overcharging may cause serious trouble with the compressor.

*Minimum refrigerant pipe is 16’5”(5 m).

This may cause a malfunction of the compressor or other devices.

Outdoor Unit

H

L

Refrigerant sizes

Liquid side		Gas side
Outer	Thickness	Outer	Thickness
diameter		diameter
Ø1/4”	0.03”	Ø1/2”	0.03”
(6.4 mm)	(0.8 mm)	(12.7 mm)	(0.8 mm)

Flare nuts and flaring

•The flare nuts and flaring are different from those for the conventional refrigerant.

Use the flare nuts supplied with the air conditioner or those for R410A.

•Before performing flaring, carefully read

“REFRIGERANT PIPING”

Insulation

Both lines need to be insulated. Use a minimum 0.4” (10 mm) wall thickness.

Metering Device is an electronic EXV (PMV) in outdoor unit.

„Connecting power and control cables (Field supplied)

•The main power is supplied to the outdoor unit. The field supplied connecting cables from the outdoor unit to the indoor unit consist for 4 wires and provides the power for the indoor unit as well as the communication signal between the outdoor and indoor unit.

•Consult local building codes, NEC (National Electrical Code) or CEC (Canadian Electrical Code) for special requirements.

•The following are the electrical requirements.

Model RAV-	SP180
Power supply	208/230 V~, 60 Hz
MCA	17 A
MOCP (MAX Fuse/CB)	30 A
Breaker	20 A
	Maximum 65’7” (20 m)
Power wire	2 x AWG12
	Ground : AWG14
System	4 x AWG12
interconnection wires
MCA = Minimum Circuit Amps
MOCP =Maximum Over Protection Device Amps.		EN

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