Model 9060Z Manual
4.3 INSTALLING THE AUXILIARY THERMOCOUPLE
Weld a 1/2 inch BSP mounting socket to the flue within about 300 mm (12”), and upstream of the oxygen probe. The thermocouple should be of similar length to the oxygen probe to prevent flue temperature distribution errors.
The thermocouple should be connected to terminals 7 & 8. These terminals will not be available for an auxiliary thermocouple if a second probe has been installed.
4.4A SHIELD CONNECTIONS
All external wiring to the 9060Z transmitter should be shielded. Do not connect shields at the field end. Simply clip off and insulate. There are two M4 earth screw terminals available in the 9060Z transmitter. An extra terminal strip may be required to connect all shields together. This should be supplied by the installer.
4.4B EARTH CONNECTION (PE)
The PE (protective earth) input connection must be made to the earth stud on the right hand side of cabinet. The PE input connection must be the first connection onto the earth stud and it must be secured by a separate nut and spring washer. All other earth connections (bonding connections) can be made on either of the two earth studs in the base of the cabinet.
The transmitter MUST be securely earthed.
Assembly of the PE and bonding connections on the earth stud
4.5 ELECTRICAL CONNECTIONS
All wiring should comply with local electrical codes. The printed circuit boards are fully floating above earth. The incoming safety earth (PE) must be connected to the primary earth stud in the right hand side of thebase cabinet.
The local fuse for the mains power supply, the isolation switch and the supply wiring must all comply with the electrical safety codes and must only be installed by qualified technicians. All earth and shield connections should be connected to the earth screws inside the case.
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