Toshiba MMU-AP0151MH Procedure 3 Writing-in of setup contents to Eeprom, Eeprom layout

Procedure 3 : Writing-in of setup contents to EEPROM

(The EEPROM contents which are installed on the service P.C. board have been set up at shipment from the factory.)

1. Push SET + CL + TEST buttons simultaneously for 4 seconds or more. 1

In this time, ￿￿ is displayed in the item code (DN). The fan of the indoor unit operates, and also starts swinging in a model with flap.

2.Using temperature setup / buttons, the item code (DN) can be moved one step up 1 or down one by one. 3

3.First set up the type and capacity code of the indoor unit.

(The data at shipment from the factory is written in EEPROM by changing the type and capacity code.)

1)Set ￿￿ to the item code (DN). (As before)

2)Using the timer time / buttons, set up the type. 4

(For example, 0001 indicates 4-way Air Discharge Cassette type.): Refer to the attached table.

3)Push SET button. (OK if display goes on.) 5

4)Using temperature setup / buttons, set ￿￿ to the item code (DN).

5)Using the timer time / buttons, set up the capacity code.

(For example, 0012 indicates 027 type.): Refer to the attached table.

4.In the next, the contents such as address setup, which were set up at the local site after installation are written in EEPROM. Execute again the operation in the above item 1.).

5.Using temperature setup / buttons, set ￿￿ to the item code (DN). (Lighting time setup for filter sign)

6.Compare the contents of the setup data which is displayed in this time with contents noted in a memo in Procedure 1 and customer’s information.

1)If data is incorrect, change it using the timer time / buttons so that it matches with contents noted in a memo, and then push SET button. (OK if display goes on.)

2)Do nothing if data is same as those in the memo.

7.Using temperature setup / buttons, change the item code (DN).

Check also the contents of the setup data and then change them it to those in the memo.

8.Then repeat operations in items 6. and 7.

9.After setup operation, push TEST button to return to the normal stop status. 6

In a group operation, turn off the power supply once, return the group wires between indoor units and CN41 connectors as before, and then turn on power of all the indoor units.

(It requires approx. 1 minute to operate the remote controller.)

∗The item code (DN) is consisted with ￿￿ to .. . DN No. may jump on the way.

Even if pushing SET button after changing the data incorrectly, the data can be returned to one before change by pushing CL button before changing the item code (DN).

<EEPROM layout>

EEPROM (IC10) is attached to IC socket. To remove it, use a pair of tweezers, etc.

To attach EEPROM, arrange the direction as shown in the following figures.

∗In exchanging time, pay attention not to bend the lead wire of IC.

Align notch directions of IC socket and EEPROM for installation.

Notch

EPROM (IC10)

111