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Wiring
Before connecting or disconnecting any wires, ensure that all power
supplies have been switched off and all wires are potential-free to prevent
equipment damage and avoid electrical shock.
Terminations are made on the terminal blocks, at the top and bottom of
the controller, which accept up to 1.5mm
diagrams shown in figures 14 to 20.
When the TC-9102 model with separable terminal blocks is being wired,
it is recommended that the removable parts of the blocks be unplugged
before terminating the wires, and that they are not plugged in again until
the wiring has been fully checked.
Separate extra low voltage (safe) wiring from power line voltage wiring.
A distinctive colour such as white or pink is recommended for low
voltage wiring. Keep all cables as short as possible and tie in position. Do
not run cables close to transformers or high frequency generating
equipment.
The 24 V supply must be stable and not shared with other switched
inductive loads. When multiple loads are connected to one transformer,
wire each load from the transformer separately so that any possible
disturbances from one load will have minimal effect on other loads.
Complete and verify all wiring connections before continuing with the
installation procedure.
!
CAUTION: Connections to the on/off or 3-speed fan control
terminals may carry up to 250 VAC. Isolate live and
neutral supply lines (double-pole switch) before
servicing.
2
wires. Follow the wiring
Technical Bulletin—TC-9102
17
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