12 Glossary
Installer reference guide
21
FTXTA30A2V1BW
Split system air conditioner
4P518023-6E – 2019.04
Symbol
Meaning
PM*
Power module
PS
Switching power supply
PTC*
PTC thermistor
Q*
Insulated gate bipolar transistor
(IGBT)
Q*DI
Earth leak circuit breaker
Q*L
Overload protector
Q*M
Thermo switch
R*
Resistor
R*T
Thermistor
RC
Receiver
S*C
Limit switch
S*L
Float switch
S*NPH
Pressure sensor (high)
S*NPL
Pressure sensor (low)
S*PH, HPS*
Pressure switch (high)
S*PL
Pressure switch (low)
S*T
Thermostat
S*RH
Humidity sensor
S*W, SW*
Operation switch
SA*, F1S
Surge arrester
SR*, WLU
Signal receiver
SS*
Selector switch
SHEET METAL
Terminal strip fixed plate
T*R
Transformer
TC, TRC
Transmitter
V*, R*V
Varistor
V*R
Diode bridge
WRC
Wireless remote controller
X*
Terminal
X*M
Terminal strip (block)
Y*E
Electronic expansion valve coil
Y*R, Y*S
Reversing solenoid valve coil
Z*C
Ferrite core
ZF, Z*F
Noise filter
A*P
Printed circuit board
BS*
Pushbutton ON/OFF, operation
switch
BZ, H*C
Buzzer
C*
Capacitor
AC*, CN*, E*, HA*, HE*, HL*,
HN*, HR*, MR*_A, MR*_B, S*, U,
V, W, X*A, K*R_*
Connection, connector
12
Glossary
Dealer
Sales distributor for the product.
Authorized installer
Technical skilled person who is qualified to install the
product.
User
Person who is owner of the product and/or operates the
product.
Applicable legislation
All international, European, national and local directives,
laws, regulations and/or codes that are relevant and
applicable for a certain product or domain.
Service company
Qualified company which can perform or coordinate the
required service to the product.
Installation manual
Instruction manual specified for a certain product or
application, explaining how to install, configure and maintain
it.
Operation manual
Instruction manual specified for a certain product or
application, explaining how to operate it.
Maintenance instructions
Instruction manual specified for a certain product or
application, which explains (if relevant) how to install,
configure, operate and/or maintain the product or
application.
Accessories
Labels, manuals, information sheets and equipment that are
delivered with the product and that need to be installed
according to the instructions in the accompanying
documentation.
Optional equipment
Equipment made or approved by Daikin that can be
combined with the product according to the instructions in
the accompanying documentation.
Field supply
Equipment NOT made by Daikin that can be combined with
the product according to the instructions in the
accompanying documentation.
