Balcar R410A service manual 160, RBC-EXW21E

INSTALLATION MANUAL To Personnel Charged in Installation (Electric) Work and Service	Program Weekly Timer
	MODEL : RBC-EXW21E

Accessory parts

Part Name	Q’ty
Program weekly timer	1
Connecting cable	1
(Length: 1.2m)

How to install the program weekly timer

NOTE 1 :

Avoid to twist the program weekly timer cable with the power supply cable, etc. or to store them in the same metal pipe, otherwise it causes a malfunction.

NOTE 2 :

Cabling

•Connection diagram

(Be sure to use the attached connecting cable.)

Timer terminal Timer terminal

1 1 1 1

• System diagram

DC12V

Program		Remote
weekly		controller
timer	4
	wires
	: Terminal block

Indoor unit

: Connector

Outdoor unit

– 160 –

Screws	2
M4 x 25
Wood screws	2
Spacer	2
Owner’s Manual	1
Installation Manual	1

Requirement to install

the program weekly timer

Installing dimension for serial installation

When installing the program weekly timer (remote controller/system controller, etc.) to the wall surface, follow the installation procedure in (Fig. 1) and (Fig. 2).

	92.5mm or more	125mm or more
	from the wall
	Spacer
Wall	90mm or more	125mm or more
	from the wall

2.5mm (Gap size)

Pull-out port of lead wire

Fig. 1

*When installing the remote controller and the program weekly timer which are set in parallel at upper side and lower side, in consideration of maintenance, keep a clearance with 25mm or more.

Install the program weekly timer apart from the generation source of noise.

NOTE 3 :

When noise is induced to the power source of the indoor unit, measures such as mounting the noise filter is necessary.

•Install the program weekly timer to the box (Procured locally) which has previously inserted in the wall.

Small screws	Spacer
M4 x 25 (2 pcs.)
or wood screws

Rear case

Program weekly

timer body

Cover

Fig. 2

1.Inserting a minus screwdriver, etc. into the groove at the lower side of the program weekly timer, which appears when opening lid of the program weekly timer body, force open the rear case to remove it.

2.Using the attached M4 screws or wood screws (2 pcs.), fix the rear case of the program weekly timer. Before installation, press to open the screw hole with a screwdriver, etc.

Fix it with the spacer, but not so strongly. If the program weekly timer does not fit closely to the wall, adjust it by cutting off the spacer.

3.Connect the attached connecting cable

(4 cores) to the program weekly timer body.

4.Install the program weekly timer body by matching to hooks on the rear case and putting into the hooks.

Program	2	2		2		2	Remote
weekly	3	3			3	3	controller
timer
	4	4	4			4

Connecting cable (Accessory)

•Arrangement

The program weekly timer and the remote controller can be arranged to either right or left side.

•Cabling procedure

Perform cabling in the following procedure.

1.Connect the attached connecting cable to the timer terminal (4P connector) of the program weekly timer. (Fig. 3)

<Remote controller> <Program weekly timer>

To terminal block	To program	To remote controller
for indoor unit		Attached	Connector
remote controller	weekly timer
		connecting cable	section
cabling

Fig. 3

2.Pull the attached cable out of lead wire pull- out port on the rear case of the program weekly timer and connect the cable to the timer terminal (4P connector) of the remote controller via inside of the wall. (Fig. 4)

Attached connecting cable

<Program weekly timer> <Remote controller>

Lead wire pull-out port

Fig. 4

Program weekly timer test run setup

•After installation, check (OFF to ON) output status using the forced ON switch on the rear side of the program weekly timer P.C. board. Then check the normal operation and certainly turn OFF the forced ON switch.

ON OFF ON OFF

Forced ON switch

Memory backup function for power failure compensation

•This program weekly timer stores in memory the contents set by the operation button during a power failure. Pushing PROGRAM button resumes the operation with the contents before the power failure when the power failure has been reset.

•How to use [BACKUP]

After the installation work, check [BACKUP] switch on the rear side of the program weekly timer P.C. board is turned to ON side.

ON OFF ON OFF

BACKUP switch

Explanation to customers

•After the installation work, hand “Owner’s Manual” and “Installation Manual” to the customers.

•Explain use and maintenance methods to the customers according to “Owner’s Manual”.

RBC-EXW21E

85464359429000 (EN)