Toshiba RAV-SM2804AT7ZG, RAV-SM2804AT8ZG-E, RAV-SM2244AT8ZG-E, RAV-SM2804AT8Z-E Contents

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11. INSTALLATION MANUAL

Please read this Installation Manual carefully before installing the Air Conditioner.

•This Manual describes the installation method of the outdoor unit.

•For installation of the indoor unit, follow the Installation Manual attached to the indoor unit.

ADOPTION OF NEW REFRIGERANT

This Air Conditioner is a new type that has adopted a new refrigerant HFC (R410A) instead of the conven- tional refrigerant R22 in order to prevent destruction of the ozone layer.

This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal to Ssc (∗ 1) at the interface point between the user’s supply and the public system.

It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a short-circuit power Ssc greater than or equal to Ssc (∗ 1).

Ssc (∗ 1)

	Model	Ssc (MVA)
	RAV-SM2244AT8(Z)(ZG)-E	1.41
	RAV-SM2804AT8(Z)(ZG)-E	1.72
Contents
1	ACCESSORY PARTS		2
2	SAFETY PRECAUTIONS		3
3	INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER		................................ 4
4	INSTALLATION CONDITIONS		6
5	REFRIGERANT PIPING		10
6	AIR PURGING		14
7	ELECTRICAL WORK		17
8	EARTHING		19
9	FINISHING		20
10	TEST RUN		20
11	ANNUAL MAINTENANCE		20
12	AIR CONDITIONER OPERATING CONDITIONS		20
13	FUNCTIONS TO BE IMPLEMENTED LOCALLY		21
14	TROUBLESHOOTING		22
15	APPENDIX		24

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1 ACCESSORY PARTS

„ Accessory Parts

Part name	Q’ty	Shape	Usage
Installation manual	1		(Hand this directly to the customer.)
Drain nipple	1
Waterproof rubber cap	1
Protective bush	1		For protecting wires (pipe cover)
Guard material for passage part	1		For protecting passage part (pipe cover)
Clamp filter	1		For conforming to EMC standards
			(Used for power wire)
Ø19.1 mm pipe	1		For the pipe inside the outdoor unit
Joint (Ø19.1 – Ø25.4 mm)	1		For connecting the pipe
Joint (Ø25.4 – Ø28.6 mm)	1		For connecting the pipe
Elbow	1		For connecting the pipe

INFORMATION

•The main pipe on the gas side of this outdoor unit has a diameter of Ø28.6 mm, but a Ø19.1 mm flare connection is used where the valve is connected. Be sure to use the Ø19.1 mm pipe and joint provided as accessories for the pipe connection.

•Before installing the unit, check that the unit has the correct model name to prevent the wrong unit from being installed in the wrong place.

•Before proceeding to weld the refrigerant pipe, be sure to pass nitrogen through the pipe.

•Before installing the indoor units, read the instructions in the installation manual provided with the indoor units.

•Before installing a branch pipe, read the instructions in the installation manual provided with the branch pipe kit.

•In the case of a simultaneous double twin system, use indoor unit with the same capacity for all four indoor units.

	Branch pipe kit	Combination indoor unit
RAV-SM2244	RBC-DTWP101E	SM56 υ 4 units
RAV-SM2804	RBC-DTWP101E	SM80 υ 4 units

•P.C. board settings are required for some of the indoor units if they are to be used in a twin, triple or double twin system. Refer to the instructions in the installation manual of the branch pipe kit, and ensure that the settings are selected correctly.

•Combination with the indoor units

Combination with the indoor units is possible only when units with the same type are combined. Combinations of units with different types cannot be used.

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