Panasonic R410A Specifications 1-9Increasing the Fan Speed, Indoor Fan Performance, Type

1. Specifications

1-9 Increasing the Fan Speed

Electrical component box

If external static pressure is too great (due to long extension of ducts, for example), the air flow volume may drop too low at each air outlet. This problem may be solved by increasing the fan speed using the following procedure:

(1)Remove 4 screws on the electrical component box and remove the cover plate.

(2)Disconnect the fan motor sockets in the box.

(3)Take out the jumper cable (sockets at both ends) clamped in the box.

(4)Securely connect the jumper cable sockets

between the disconnected fan motor sockets in step 2.

(5)Place the cable neatly in the box and reinstall the cover plate.

1	Indoor Fan Performance
	26 Type	36 Type

Fan motor

Jumper cable

Fan motor socket

(At shipment)

Jumper cable

(Jumper cable installed)

2159_M_I

											200								0.8
											(Pa)								(inAq)
									(inAq)			line
	150	line									150	Limit							0.6
PressureStaticExternal	(Pa)	Limit							0.5	PressureStaticExternal									0.5
	100								0.4		100		line						0.4
			line
		Limit										Limit							0.3
									0.3
								HT
	50								0.2		50							HT	0.2
							HH									H	H
					H				0.1						H				0.1
				L										L
	0								0		0								0
	300		500			700		900			500		1000
			Air Flow (CFM)										Air Flow (CFM)
									1982_U_I									1983_U_I
	NOTE			HT		: Using the booster cable

H : At shipment

How to read the diagram

The vertical axis is the external static pressure (Pa) while the horizontal axis represents the AIR FLOW (CFM). The characteristic curves for “HT”, “H”, “M” and “L” fan speed control are shown.

The nameplate values are shown based on the “H” air flow. For the 26 type, the air flow is 636 CFM, while the external static pressure is 49 Pa at “H” position. If external static pressure is too great (due to long extension of duct, for example), the air flow volume may drop too low at each air outlet.

This problem may be solved by increasing the fan speed as explained above.

1-56