Sanyo 85464359981002 unit is installed 1-10.Check of Limit Density, Pay special attention to any

Always check the gas density WARNING limit for the room in which the

unit is installed.

1-10. Check of Limit Density

When installing an air conditioner in a room, it is neces- sary to ensure that even if the refrigerant gas accidentally leaks out, its density does not exceed the limit level for that room.

If the density could exceed the limit level, it is necessary to provide an opening between the unit and the adjacent room, or to install mechanical ventilation which is inter- locked with the leak detector.

(Total refrigerant charged amount: oz)

(Min. indoor volume where the indoor unit is installed: ft.3)

<Limit density 0.3 (oz/ft.3)

The limit density of refrigerant which is used in this unit is 0.3 oz/ft.3 (ISO 5149).

The shipped outdoor unit comes charged with the amount of refrigerant fixed for each type, so add it to the amount that is charged in the field. (For the refrigerant charge amount at shipment, refer to the unit’s nameplate.)

CAUTION	Pay special attention to any
	location, such as a basement,
	etc., where leaking refrigerant
	can accumulate, since refrig-
	erant gas is heavier than air.

1-11. Installing Distribution Joint

(1)Refer to “HOW TO ATTACH DISTRIBUTION JOINT” enclosed with the optional distribution joint kit (APR-P160BA).

(2)In order to prevent accumulation of refrigerant oil in stopped units, if the main tubing is horizontal then each branch tubing length should be at an angle that is greater than horizontal. If the main tubing is vertical, provide a raised starting portion for each branch.

(3)If there are height differences between indoor units or if branch tubing that follows a distribution joint is connect- ed to only 1 unit, a trap or ball valve must be added to that distribution joint. (When adding the ball valve, locate it within 1.3 ft. of the distribution joint.)

(Consult with SANYO separately concerning the ball valve.)

If a trap or ball valve is not added, do not operate the system before repairs to a malfunctioning unit are completed. (The refrigerant oil sent through the tubing to the malfunctioning unit will accumulate and may damage the compressor.)

Minimum indoor volume & floor area as against the amount of refrigerant is roughly as given in the following table.

	ft.3								ft.2
	10000								1136
	9500								1079
	9000	Range below							1022		h)
	8500	the density limit of							966		g
										areafloordoorni.nMi	ft.8.8singceilithenhi
meuvoldoorni.nMi	3500								398
	8000	0.3 oz/ft.3							909
	7500								852
	7000	(countermeasures							795
	6500	not needed)							738
	6000								682
	5500								625
	5000								568
	4500								511
	4000								454		(whe
	2500								284
	3000				Range above				341
	2000				the density limit of				227
					0.3 oz/ft.3
	1500								170
	1000				(countermeasures				114
	500				needed)				57
	0								0
	0	500	1000	1500		2000	2500	3000
									oz

Total amount of refrigerant

Tube branching methods (horizontal use)

		°
	to	30
15

	B
B A	Horizontal A
	line View as seen

from arrow

Arrow view

Types of vertical trap specifications

(When using ball valve)

Main tubing

Ball valve	Indoor unit (more than 2 units)
	(If only 1 unit is connected,
(BV: purchased
	a ball valve is also needed on this side.)
separately)
Indoor unit (1)
(When not using ball valve)
Main tubing	Horizontal
		(Each unit is connected to
	Indoor unit
		tubing that is either level
	Branch tubing is	or is directed downward.)
	directed upward.

More than

8in.

Indoor unit is directed downward

13