System Requirements; Piping (Field Supplied); Power Supply Connection And Connecting Cable - Toshiba Carrier RAS-09 Installation Manual

Piping (Field supplied)

• Minimum refrigerant line length between the outdoor unit and indoor unit is
6.6ft. (2m).
• Maximum pipe lengths
Allowable
Pipe length T
(ft (m))
66 (20)
Refrigerant pipe sizes
Liquid side
Outer Diameter Thickness
In. (mm) In. (mm)
Ø1/4 (6.35) 0.03 (0.8)
Insulation
Both lines need to be insulated. Use a minimum 5/16 in (8mm) wall
thickness.
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SYSTEM REQUIREMENTS

SYSTEM REQUIREMENTS
Height difference
(Indoor – Outdoor H)
(ft (m))
33 (10)
T H
Gas side
Outer diameter Thickness
In. (mm) In. (mm)
Ø3/8 (9.52) 0.03 (0.8)
3
Refrigerant charge
Refrigerant charge
Length of refrigerant Pipe
connected to Indoor/
outdoor unit
6.6-50
(2-15m)
50-66
Refrigerant for piping that exceeds
(15-20m)
* Caution during addition of refrigerant
Max. amount of additional refrigerant is 0.22 lbs (100g).
Charge the system accurately. Overcharging may cause serious trouble
to the compressor.
* Minimum refrigerant pipe is 6.6ft (2m).
Using pipe shorter than that may cause a malfunction of the compressor
or other components.
Power supply Connection and
Connecting Cable
• The power supply shall be connected to the outdoor unit by 3 wires.
• The connecting cable between the indoor unit and outdoor unit needs to
have 4 wires. This cable provides the power for the indoor unit and the
communication signal between the outdoor unit 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.
Product
FCU RAS-09EK Series RAS-12EK Series
Model
CDU RAS-09EA Series RAS-12EA Series
Item
MCA
MOCP (MAX Fuse/CB)
Breaker
Connect to
FCU/CDU
Power supply cord
No. of Core
(Not provide)
Size
No. of Core
Interconnecting
cable between FCU
& CDU (Not provide)
Size
MCA = Minimum Circuit Amps
MOCP = Maximum Over Protection Device Amps.
Unit : ft (m)
Additional refrigerant
None
Add 0.22oz/ft (20g/m) of
50ft (15m) up to 66ft (20m)
10 13
15 20
15A
CDU
3 (L1, L2, i)
AWG14
4 (L1, L2, S, i)
AWG14
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EN
SI