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240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial

Ver. 1.00

CONFIDENTIAL

12-12. Easy-Link connections with previous models

The 540 (T-H3) can be connected with the previous models ; 520 (T-H2).

A. DIPswitch setting on the computer board of the 540 (T-H3)

B. Basic diagram of connections between the Easy-Link system units

Example of correct connections

Temperature remote controller :

9008172005 (TM-RE40)

540

(T-H3)

models*

Case 1

Temperature remote controller :

9007603005 (TM-RE30)

models*

540

(T-H3)

models*

Case 2

Temperature remote controller :

9007603005 (TM-RE30)

models*

540

(T-H3)

540

(T-H3)

models*

Case 3

*The previous models indicates a 520 (T-H2).

CAUTION

If a Easy-link system contains a 520 (T-H2), change DIPswitch No.6 on the lower

bank all of the 540 (T-H3) computer board to the “ON” position.

OFF

The dark square is the direction the DIPswitch should be set to.

DIPswitch setting on the 540 (T-H3)

(Lower bank of DIPswitches)

A.O. Smith T-H3-DV Service Manual

Other manuals for A.O. Smith T-H3-DV