Mitsumi electronic PKA-A12HA4, PKA-A18HA4 BACK-UPHEATING FUNCTION CN152, Outline of functions

(2) Setting method of each function by wired remote controller

	
	B: Refrigerant address
	C: Data display area
	D: Request code display area

	
	


1.	Stop operation( ).
2.	Press the	TEST		button () for 3 seconds so that [Maintenance mode] appears on the screen ().
	After a while, [00] appears in the refrigerant address number display area.(at  )
3.	Press the	CHECK		button () for 3 seconds to switch to [Maintenance monitor].
	Note) It is not possible to switch to [Maintenance monitor] during data request in maintenance mode
	(i.e., while “----” is blinking) since no buttons are operative.
	[----] appears on the screen () when [Maintenance monitor] is activated.
	(The display () now allows you to set a request code No.)
4.	Press the [TEMP (				and		)] buttons () to select the desired refrigerant address.
	[ScreenB]
								
5.	Press the [CLOCK (				and		)] buttons () to set the desired request code No.(“311~318”, “321~324”)
6.	Press the	FILTER	button () to perform function setting.

If above setting operations are done correctly, "Request code number" will appear in data display area.() [Example: When the "311" of "Request code number" is set, [311] appears on the screen.()]

[Refererence]

You can check current "request code number" setting by setting the "request code number"(“310” or “320”) and pressing the FILTER button.()

[Example: When the current setting is "Setting No.2(Request code 311)", [311] appears on the screen.()]

7. To return to normal mode, press the ON/OFF button ( ).

10-2. BACK-UP HEATING FUNCTION (CN152)

10-2-1. Operation

Outline of functions

The back-up heater signal is sent out according to the tempera- ture difference between indoor room temperature and set tem- perature. This function is available only in heating operation.

10-2-2. How to connect

When connecting to the connector CN152 of the indoor unit, use PAC-SE59RA-E(optional parts).

	Temperature difference			Back-up heater
	(Z=Set temp. - Room temp.)			signal output
1			Z 0˚C(˚F)		OFF
2	0 < Z < 2.5˚C(4.5˚F)			Keeping condition
3		2.5˚C(4.5˚F) Z			ON
						ON
						OFF
Z	0		2.5˚C(4.5˚F)

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