Sinclair SDV6 User And Installation Manual page 46

6. Confirm again that the power phase sequence is
correct and properly restore the protecting cover of
the power cable.
Plastic board open
Plastic board close
7. After the communication line and power cable are
connected, cover the sheet metal of the electric
control box cover, and tie the wiring across the ring
tightly with a tightening tape.
WARNING
Select a proper torque according to the screw
size.
Torque which is too small may cause poor
contact, resulting in heating of the terminals
and fire. Torque that is too large may damage
the screws and power supply terminals.
The size of the screws and recommended torque are as
follows:
Table 5.7
Screw specification Standard value (kgf.cm)/(Nm)
M4
M8
Figure 5.39
Figure 5.40
Figure 5.41
12.2/1.2
61.2/6.0
41
CAUTION
During installation, the earth line shall be
longer than the current carrying conductor to
ensure that when the fixing device is loose,
the earth line is still not stressed and can be
reliably grounded.
After installation, close the cover of the
electric control box, tighten the screws and
seal the wiring hole with a tightening tape.
Otherwise, the heat dissipation of the electric
control box may be affected, which could
shorten the service life of the unit.
When inserting the strong-current cables and
communication lines into the wiring holes,
they must be equipped with wiring across
rings. Otherwise, they may become worn out
by the sheet mental and cause electric
leakage or short circuiting.
The electric control box is fully enclosed.
After installation, close the cover of the
electric control box, tighten the screws and
seal the wiring hole with a tightening tape.
Otherwise, the heat dissipation of the electric
control box may be affected, which could
shorten the service life of the unit.
Outdoor unit wiring diagram
Circuit Circuit
breaker1 breaker2
Outdoor unit1 Outdoor unit2
WARNING
Do not connect the earth line of the lightning
rod to the unit shell. The earth lines of the
lightning rod and the power cable must be
configured separately.
Each unit shall be equipped with a circuit
breaker for protection against short circuiting
and abnormal overload. In addition, the
indoor and ODUs shall be equipped with
individual main circuit breakers to connect or
disconnect the main power supply of the
indoor and ODUs.
Circuit
breaker0
Circuit
breaker3
Outdoor unit3
Figure 5.42