ESIE15-08B | Part 3. Repair 2. Unit specific repair procedures Monobloc CA19/07/16 Page 119Daikin Altherma Monobloc CAInstallation1. Proceed in reverse order.2.2.4. Replacing the PCB1 main2.2.4.1 Preliminary actions1. Switch off the Daikin Altherma Monobloc CA via the user interface.2. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker.3. Remove the switch box, refer to "Replacing the switch box" on page 117.2.2.4.2 ProcedureRemoval1. Unlock the 4 latches (1) and remove the electrical component box cover (2) from the electrical component box (3).2. Loosen and remove the 2 screws (4) that fix the PCB assembly main (5).3. Loosen and remove the screw (6) that fixes ground wires E1, E2 (7).INFORMATIONReplace all tie wraps that were cut during removal.WARNING : R ISK OF FIRE• When reconnecting a connector to the PCB, do not apply force or damage the connector or the connector pins onthe PCB.
