Installing The New Con Assembly - SMA Sunny Mini Central 9000TL Instrucciones Para La Sustitución

SMA Solar Technology AG
4. Disassemble the fan (B). To do so, press the locking tabs at the top left and right of the retainer
outward and move the fan upward out of the retainer.
5. Remove all string fuses (I).
6. Unscrew the 12 screws of the CON assembly with a Torx screwdriver (TX 20).
7. Tilt the CON assembly slightly forward at the top and remove it through the front.
8. Remove the RCMU (K) from the CON assembly:
• Remove the residual-current monitoring unit's cables (G) from the screw terminals.
• Lead the cables through the residual-current monitoring unit back to their origin.
• Press the 2 locking tabs on the rear side of the CON assembly together and remove the
residual-current monitoring unit from the CON assembly.
7

Installing the new CON assembly

Damage to the inverter due to excessive torques during screw tightening
Screw contact areas may be ruptured due to excessive torques.
• Use only the new screws included in delivery to install the new assembly.
• Tighten all screws with a Torx screwdriver. On no account exceed the specified torques.
Procedure:
1. Disconnect the inverter from all voltage sources (see Section 5, page 12).
2. Install the RCMU on the new CON assembly:
• Lead the residual-current monitoring unit's locking tabs through the openings in the CON
assembly until they snap into place.
• Lead the 2 connection cables through the residual-current monitoring unit to the screw
terminals in parallel form.
3. Break the top-left edge of the new CON assembly out at the predetermined breaking point.
4. Insert the new CON assembly into the inverter's enclosure. When doing so, ensure that there
are no cables below the CON assembly and no cables get stuck there, and that the screw
holes in the CON assembly are located directly above the screw holes in the inverter's
enclosure.
5. Secure the CON assembly in place. To do so, insert 2 new screws with a microencapsulated
pre-coating into the screw holes at the top left and right and tighten them slightly.
6. Insert the remaining 8 new screws with a microencapsulated pre-coating into the screw holes
and tighten all 10 screws (TX 20, torque: 3 Nm).
7. Connect the new ribbon cable from the delivery scope to the OCS assembly, the power
assembly (AST) and the CON assembly.
8. Connect all cables to the CON assembly:
• Connect the DC link connection (H) to the screw terminals or spring clamp terminals
(torque for connection to screw terminals: 1.5 Nm). Ensure the color assignment is correct
(BK = black, RD = red).
Replacement Manual
7 Installing the new CON assembly
NOTICE
CON-SMC9-11-RM-xx-10 15