Timeguard NTTHDA Installation And Operating Instructions Manual page 5

• Ease the module forward without disconnecting, so you have
access to the wall plate and loosen the screws on the terminal
block for both supply and load cables.
• Fit the wall mounting screws through the wall plate and into
the wall box threaded holes, and tighten until the wall plate is
firmly fastened.
• Re-position the module back into place ensuring the time
indicator is on the bottom right hand side, and the locating
holes on the timer are set correctly on the pegs on the back
plate.
• Re-fit the bezel over the timer module, and secure to the wall
plate with the two fixing screws previously removed.
• Ensuring that the free terminals on the wall plate are at the
4
top, terminate the 230V 50Hz supply and load cables to the
terminal block ensuring correct polarity is observed and that
all bare conductors are sleeved. Please note the connections
are marked on the rear side of the wall plate (see section 5b.
Connection Diagram).
4c. Installation (NTTHDS only)
• Ensure the mains supply is switched off and the circuit supply
fuses are removed or the circuit breaker turned off.
• Remove the terminal cover by undoing the fixing screw on
the bottom of the time switch.
• Mark the position of the top wall mounting screw. Drill out
the top mounting hole taking care to avoid any joists, electrical
cables or water/gas pipes that may be hidden
beneath the surface. Insert the rawl plug into the hole.