Service and Parts Manual (2019, 2020, 2021, 2022)
79 PB
INSTALLATION
Field Settings (Function Settings)
Instructions for the function setting of acces s control, fire protection , ON/OFF
1. Factory  setting
ON/OFF  function  is disabled  as factory  default while both the access  control and  fire protectio n 
functions  are enabled. 
To  use  or cancel the  ac cess  control / fire protection  / (ON/O FF ) function , use the wired
controller to 
modify the parameter s of  indoo r unit. 
Note : 
Pleas e  refer to “Indoo r unit paramete r revise” sectio n in TC  Manua l for how to use  the  wired
controller 
to modify the parameter s of  indoo r unit
. 
2. Functio n introduction
3. Function  setting
(1) Hardware  connection
Figure 1  electrical wiring diagram  Figure 2  short wiring
(1) Acces s control:
C ontrol mode to  control the machin e startup & shutdow n base d on  the  ON  and  OFF   state of  the
access  control port.
(2) Fire  protection :
C ontrol mode to  control the machine  startup & shutdow n base d on  the ON  and  OFF  state of  the fire
protection port.
(3) ON/OFF :
Specia l control mode to  achie ve the control of indoo r unit startup & shutdown  based  on the input
state of  the fire protection por
t of the indoo r unit (no othe r way can  control startup & shutdown)  and
output the fault status of  indoo r unit through OU T INPU T port.
Figure 3  main control board 
3  pins of  the  OU T  INPU T  X2  socke t show n in  the  electrica l wiring  diagra m of  Figure 1  will be in short
circuited state by def ault factory setting (an externa l short circuit plug show n in Figure 2, and the OU T 
INPUT
X2  socke t of main control boar d as  show n in Figure 3 ). 
(Note:  the socket number in circuit is subjec t to th
e actua l serial number  of  PC B.) 










