Balcar R410A service manual To Personnel Charged in Installation Work and Service

• The room temperature sensors are equipped in the indoor unit and the wireless remote controller. One of two sensors works.

• The room temperature sensor is set to the indoor unit side at the shipment from the factory. To select the sensor in the remote controller, push the SENSOR button (Right figure) inside of the remote controller cover and check “Main sensor” disappears from

LCD.NOTE :

If the room temperature data from the

remote controller is not transmitted to

the unit for 10 minutes or more, the

sensor at indoor unit side is automati-

cally selected even if the sensor at the

remote controller side is selected. Fix the remote controller toward the unit as possible.

How to set the address switch

• When the multiple sensors are installed in the same room, an address can be set to prevent cross communication.

• When replacing the battery and pushing SET button, the address of the remote controller becomes [ALL] and the sensor is enabled to receive signal regardless of setting of address switch of the operation section.

• For selecting of the remote controller address, refer to Owner’s Manual.

• Change the address of the sensor by removing screws of P.C. board cover of the sensor unit. After then, fix the cover with screws using a clamp.

	INSTALLATION MANUAL		To Personnel Charged in Installation Work and Service		Remote Controller Wireless Kit
					MODEL : TCB-AX21U (W)-E
Accessory parts		How to perform cabling of sensor units		How to set the room temperature sensor		Test run

Part Name	Q’ty	Part Name	Q’ty
		Battery	2
Sensor unit	1	Owner’s Manual	1
		Tapping screw

Connection diagram

Indoor unit	Sensor unit P.C. board
Terminal block for	CN001
remote controller
cabling	White

•How to use [TEST]

1.Turn No.1 of DIP switch [S003] on sensor P.C. board from OFF to ON.

2.During the test run, all the indication lamps on LCD flash.

3.During the test run, the temperature cannot be controlled.

		M4 x 16mm	2
Remote controller
	1	Clamper	1
Remote controller	1	Fixing screw	1
holder
		M4 x 12mm

• How to set the fan motor speed refer to the OWNER’S MANUAL

How to install the sensors

*The positions where the sensors can be installed are limited to the corners (A) in Fig. 1. Therefore, for installation of the sensor units, consider the direction when a panel is installed to the indoor unit.

1.Remove the suction grille.

2.Take off the screw fixing the corner cap and remove the corner cap sliding it side-ward. (Fig. 2)

Black

2P White

Connection

•Connect the cables out of the sensor unit to the terminal block for remote controller cabling of the indoor unit. (There is no polarity.)

Requirement

The control by two remote controllers is enabled by installing the wireless remote controller with the wired remote controller for an indoor unit.

(Max. 2 remote controllers of wireless or wired are installable.) “2-remote controllers” controlling means that one or multiple units are operated by the multiple remote controllers.

4.After the test run, be sure to turn DIP switch 1 from ON to OFF and check the indication lamps do not flash.

Use [TEST] function only for a test run, otherwise the unit is overloaded. Fix the cover as original.

S 003

Bit 1 : OFF to ON

ON

4 3 2 1

Sensor

P.C. board

Corner cap

Cover

– 165 –

Fig. 1	Drain pipe side
	of indoor unit
Electric parts box
of indoor unit
Fig. 2	Corner cap
Screw

Refrigerant pipe side of indoor unit

Sensor unit installing position A (Right side of electric parts box)

Ceiling panel

Slid

Corner cap

NOTES :

1.Upon confirmation of the terminal numbers of the indoor unit, connect the remote controller cables without miscabling.

(If applied AC 220/230/240 Volt, damage the unit.)

2.The multiple wireless remote controller kits cannot concurrently be used for an indoor unit.

3.When installing simultaneously the wireless remote controller with the wired remote controller, set one of them as the sub remote controller.

•When setting the wired remote controller as the sub, exchange the address connector at the rear of P.C. board of wired remote controller from master to sub remote controller.

•When setting the wireless remote controller as the sub, turn No.3 of DIP switch [S003] on P.C. board of wireless remote controller sensor unit from OFF to ON.

Display of Address		Address		Address		Address
remote
controller
address
		4–6	1–3	4–6	1–3	4–6	1–3
Address	* Address switch	S001	Address select	S001	Address select	S001	Address select
switch

3.The thermal insulation material is stuffed in the square hole provided to pass through cables of the panel, so take off it once and pass the cable out of the sensor of wireless remote controller through the grille. Using a clamp, fix the cable with screws and then be sure to stuff again the removed thermal insulation material as original. (Fig. 3)

If the thermal insulation material is not stuffed, dewing may happen.

To operate an indoor unit by 2 remote controllers

*The indoor unit is operated if either wireless or wired remote controller is set as master or sub remote controller.

(Total cable length: Within 400m)

Wireless	Wired
remote controller kit	remote controller
(Master)	(Sub)

position of	of sensor unit		3	2	1			3	2	1		3	2	1
	can be set any
sensor			6	5	4	Address		6	5	4	Address	6	5	4	Address
	position.	S002					S002					S002

Slide switch

• Check the slide switch in the battery box of the remote controller is

set to [S] / [A] at shipment from the factory.

Fig. 3

Sensor unit

CN1 (Sold separately) 1 2

1 2

(Sold separately)

Do not change the setting.

Remove the thermal insulation material, fix the cable with screws using a clamp, and put in the thermal insulation material again.

Terminal block for remote controller cable

Earth

Remote controller cable (Procured locally)

(0.5 to 2mm²)

Indoor unit

		Select of operation mode	A	H	C
S K N	A H C
		Set to A.
		Select of flap indication	S	K	N
		Set to S.

Self-diagnosis table and measures

How to handle the remote contr oller

•In case using remote controller mounting to the wall, etc.

Check a signal is received correctly by pushing button at the position to be fixed.

Put on.

Mounting screw	1
Truss tapping
4 x 16	Push.

2

• To take off remote controller, pull it toward you.

•Replacement of battery

1.Holding the both ends of the cover and remove it by sliding downward.

2.Correctly insert 2 AAA alkali batteries matching + and - polarities with indications.

3.Push SET button with something tipped and attach the cover.

Cover RESET button

4.After cabling according to “How to perform cabling of sensor units”, remain the cable length enough to remove the sensor unit and fix it with screws using a clamp. (Fig. 3)

5.Install the sensor units to the panel. In this time, slide the panel so that the hooks are fit in completely at 3 positions.

And also be careful not to pinch the cable. (Fig. 4)

Fig. 4

NOTES :

1.Avoid to twist the cables of the operation section with cables of the power supply, etc. It causes a malfunction.

2.When noise is contained to the power supply of the indoor unit, counter measures such as mounting the noise filter is necessary.

To operate a group control of multiple indoor units by 2 remote controllers

*Master and Sub remote controllers are operable even if they are installed to any indoor unit.

(Total cable length: Within 200m)

	Wireless				Wired
remote controller kit					remote controller
(Sold	(Master)				(Sub)
separately)		CN1	Remote controller inter-unit			(Sold
Sensor		1 2	cable for group control		1 2	separately)
			(Procured locally)
unit
			(0.5 to 2mm²)
Terminal block
for remote
controller	Indoor unit		Indoor unit Indoor unit Indoor unit
cable		No.1	No.2	No.3	No.N
Earth		Earth		Earth	Earth

Lamp indication	Cause	Measures
	Power supply is not	Check cable
	turned on.	connection
No indication even if	Miscabling between	and correct it.
	sensor unit and indoor
the remote controller
is operated.	unit
	Defective connection
	between sensor unit
	and indoor unit
	Miscabling or defective
	connection between
	indoor and outdoor
	units
	Protective device of	Check
Flashes alternatively	outdoor unit works.	outdoor unit.
	Protective device of	Check
Flashes alternatively	indoor unit works.	indoor unit.

Lamp indication of sensor

: Goes off

: Flash (0.5-sec. interval)

Cautions for installation of the remote controller

•To operate the remote controller by fixing it to the wall, etc. with a remote controller holder, turn on the fluorescent lamp, operate the remote controller at the position to be fixed, check the air condi- tioner normally operates, and then mount it.

•When the room temperature is sensed by the remote controller, mount the remote controller paying attention to the following items.

•Place not exposed directly to cold or hot wind.

•Place not exposed directly to the sunlight.

•Other places where the remote controller is not influenced.

Explanation to customers

•Hand over the “Owner’s Manual” and “Installation Manuals” to the customer after installation works.

•Explain usage and maintenance of the remote controller according to “Owner’s Manual”.

TCB-AX21U (W)-E

85464359426000 (EN)