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Toshiba
–4–
Outdoor Unit
Installation Manual
EN
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
Figure of Single
Refrigerant sizes
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.
Refrigerant charge
* 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.
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.
• System interconnection wire size must be AWG12.
• Breaker must have a capacity specified in the
following table.
• All wiring must comply with local electric codes and
NEC (National Electric Code) or CEC (Canadian
Electric Code).
Allowable
pipe length
(ft (m))
Height difference
(Indoor-outdoor H)
(ft (m))
Number of
bent portions
Total length
L
Indoor unit:
Upper
Outdoor unit:
Lower
10 or less
164’1” (50) 98’5” (30) 98’5” (30)
Liquid side Gas side
Outer
diameter
Thickness
Outer
diameter
Thickness
Ø3/8”
(9.5 mm)
0.03”
(0.8 mm)
Ø5/8”
(15.9 mm)
0.04”
(1.0 mm)
H
L
Indoor Unit
Outdoor Unit
Length of refrigerant
pipe connected to
indoor/outdoor unit
Additional refrigerant
16’5” - 98’5”
(5 - 30 m)
None
*98’5” - 164’1”
(30 - 50 m)
Add 0.43 oz/ft (40 g/m) of
refrigerant for piping that exceeds
98’5” (30 m) up to 164’1” (50 m).
Model RAV- SP240
Power supply 208/230 V, 60 Hz
MCA 24 A
MOCP (MAX Fuse/CB) 40 A
Breaker 25 A
System interconnection wires AWG12
MCA = Minimum Circuit Amps
MOCP =Maximum Over Protection Device Amps.
4-EN
+00EH99865401_00Ta.book Page 4 Wednesday, November 25, 2009 11:19 AM