Tadiran Telecom MINI-VRF - Page 12

4.13 Thennal
insulation
ofpipe
l) Apply
thermal
insulation
to the
pipes
at the
gas
side
and
the liquid side
respectively;
2) Useclosed-cellthermatinsulationmaterials,withtheflameretardant$adeofBlandhightemperatureresistanceofl20C;
3) Outerdjameterof
copperpipe<0
12,7
and
thickness
of thermal
insulationcotton>
l5mm; outerdiameterof
copperpipe>
015.88
and
thi ckness of thennal
insulation
cotton
2
20mm,
4) The nutjoints
ofthe
indoor unit
shall
be
performed
thermal
insulation
The
power
supplies
for
the indoor and
outdoor units
shall be
separately
designed.
The
power
supply
must
be designed
with
a sub-circuit,
and equipped
with a
current
leakage
protector and a manual
switch.
All
indoor units
in the same system
shall
be ananged
on
the same
power
circuit,
and shall
be tumed
on/off
the
power
simultaneously.
It is not
allowed
to equip each
indoor unit
with
a
power
switch.
The connecting
wire system
and
the refrigerant
pipe
system
ofthe
indoor unit shall
be
incorporated
into
the same system.
To
reduce the interference,
the indoor
and outdoor
communication
cables
shall
use two-core
or three-core
shielded
twisted-pair
cables
instead of
ordinary
multi-core
cables.
Conform
to related
national electrical
standards.
Electrical
wiring
shall be done
by a
professionai electricim.
5
Electrical
Wiring
5.1 0utdoor
unit
wiring
Ifneeded,
t11e user
can
purchase
a centralized
controller,
as shown
in the
dashed box.
For
the specific
method ofinstallation,
please
contact
your
local
supplicr
Fig.5-1
Wiring
and Control
Fig. 5-2
Electrical
Wiring of Single-phase
Outdoor
Units
Table 5-1 Outdoor
Unit
Wiring
Signal
Wire oflndoor/Outdoor
Units
(mm) (Signal
Wirc
of
three-core
shielded cable
3x1.0
(two-core
shielded cable
2x1.0)
5/14/16/1
10
Fig. 5-3
Electrical
Wiring
of Three-phase
Outdoor
Units