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12
|
About the unit and options
12.4 Combining units and options
12.4.1 Possible options for the SV unit
Installer and user reference guide
42
a
b
j
h
d
e
i
a Heat pump outdoor unit
b Safety valve unit (SV)
c VRV direct expansion (DX) indoor unit
d VRV direct expansion (DX) indoor unit (direct connection from outdoor to indoor)
e Remote controller in normal mode
f Remote controller in alarm only mode
g Remote controller in supervisor mode (mandatory in some situations)
h Centralised controller (optional)
i Option PCB (optional)
j Cool/heat changeover remote control switch (optional)
Refrigerant piping
Interconnection and user interface wiring
Direct connection of indoor units to the outdoor unit
INFORMATION
Certain options may NOT be available in your country.
INFORMATION
All possible options are mentioned in the option list below. For more information
about an option, see the installation and operation manual of the option.
Duct connection kit (EKBSDCK)
This kit is required when you install ducting on the air inlet side. See the examples
in
"14.2 Possible
configurations" [
This kit can also be used when measuring the airflow. See
4
the airflow
rate" [
112].
Joint kit (EKBSJK)(only for SV4~8A)
This kit is required when you make a connection with e.g. FXMA200A and
FXMA250A. When using the joint kit, change the DIP switch settings. See
4
set the DIP
switches" [
Drain up kit (K-KDU303KVE)
▪
Only this optional drain up kit can be used on the SV unit. Do NOT use another
drain pump kit.
▪
Do NOT route the interconnection wiring of the SV unit together with the power
supply wire of the drain up kit.
▪
Route the power supply wire and relay harness of the drain up kit inside the SV
unit as shown in the figure below.
▪
Position the ferrite core on the relay harness of the drain up kit inside the switch
box of the SV unit.
c
c
e
e
g
i
4
66] and
"14.5.1 To install the
96].
c
e
f
i
i
ducting" [
"18.3.3 About measuring
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
4
72].
"16.4 To
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Troubleshooting
