Airwell RCW21 User manual

Installation &
Operation Manual
Central controller
RCW21
20.AW.RCW21.IOM.EN.17.06.01

1 Installation part.......................................................................................1
1.1 Packing list and installation components.....................................2
1.2 Installation instructions..................................................................3
1.3 Installation methods........................................................................3
1.4 Wiring methods................................................................................5
1.5 Safety precautions..........................................................................6
1.6 System wiring instruction...............................................................7
2 Operation part.........................................................................................8
2.1 Function instructions......................................................................9
2.2 Operation conditions.......................................................................9
2.3 Key words.......................................................................................10
2.3.1 Status indication.....................................................................10
2.3.2 Power on or reset...................................................................10
2.3.3 Emergency stop and forced on.............................................10
2.3.4 Various locking.......................................................................11
2.3.5 ON and OFF ............................................................................12
2.4 Operation instructions.......................... .......................................14
2.4.1 Keys instructions...................................................................15
2.4.2 LCD instructions....................................................................19
2.4.3 Other instructions...................................................................22
2.4.4 Error code table......................................................................24
2.5 Technical index and requirements..............................................25
CONTENT

INSTALLATION PART
Installation & Owner‘s Manual
1

1.1 Packing list and installation components
1
6
6
1
4
1
2
3
4
5
GB845/ST3.9*25-C-H(S)
Φ6*30
RVVP-300/300 3×0.75mm2
RVV-300/500 3×1.5mm2
1
2
3
4
5 ————
————
————
————
————
1. Please check the packing list of the centralized controller,whether the components are
complete.
Quantity Remarks
Matching resistance 120 Ω
2. Installation assemblies prepared on the site
Name Remarks
3-core control
shielded cable 2 PCS
1 PCS
1 PCS
2/3 PCS
Several
pieces
3-core cable
Switch box
Wire pipe(jack
casing pipe,
captive nut)
Tighten strip
No.
No. Quantity
(install into
wall)
Selected model
Name
For power supply of the
centralized controller
For binding cables(as the
case maybe)
Centralized controller
Cross-recessed head tapping
screws
Fastening plastic expansion pipe
Installation & Operation Manual
One for communicating with
the air conditioner; the other
for communicating with the
computer.
Installation & Owner‘s Manual
2

1.3 Installation methods
1.2 Installation instructions
1) Connect 220VAC power to the L、N terminals of the centralized controller directly.
2) Do not lay the signal wire and the power wire of the centralized controller in the same power
wire pipe, there should be 300~500mm distance between two pipes.
3) The signal wire of centralized controller should not exceed 1200m.
4) No intermediate joint is allowed for the shielded cable. If joints are inevitable, crimp it with the
terminal block.
5) After the centralized controller is connected, do not use megohmmeter to inspect the insulation
of the signal cable.
6) Wiring mode of the centralized controller and the network interface:
The communication port between the centralized controller and the network interface of the air
conditioner is polarity-sensitive.The X,Y and E at both sides should correspond properly. Dot
not cross-connect the signal wires,the same to the RS485-RS232 of the centralized controller.
Correct connection Incorrect connection Incorrect connection
Incorrect connection
Installation instructions
Fig.1.1 Centralized controller size (unit: mm)
Installation & Owner‘s Manual
3
RCW21

X Y E F1 F2 E FORCED ON EMG.STOP L N
（GB845/ST3.9*25）
~ 0 0 ~ 15
ON
1 2 3
Insert the flathead screwdriver into the
concave on the upper side of the box,
and rotate slightly to open the upper cover(3 places).
Fix the screws of the centralized controller
Base
Front cover
Address dial code
Dial code
Dial code position Address range
Fig. 1.2 Installation diagram
Forced on
switch
Emergency
stop switch
L、N terminals
(198V~242V)/(50/60Hz)
Communication terminal with computer
Communication terminal with air conditioner
Fig.1.3 Terminal instruction of centralized controller
Installation & Owner‘s Manual
4

1.4 System wiring instruction
E F F F F 2 2 1 1
T N F1 F2 E X Y E
POWER
POWER
POWER
Network air conditioner wiring diagram (two types for indoor unit: one is the main control board
with an external network interface module; the other is the network interface module is built in the
main control board).
RS232 pin buckle: insert the COM port of computer
RS485-to-RS232
module
Other centralized
controllers
Matched resistance of
communication
terminal 120 Ω
Matched resistance of
communication
terminal 120 Ω
Matched resistance of
communication
terminal 120 Ω
Matched resistance of
communication
terminal 120 Ω
Matched resistance of
communication
terminal 120 Ω
Matched resistance of
communication
terminal 120
Ω
Centralized
controller
Centralized
controller
Centralized
controller
One computer can connect 16 centralized controllers at most
A centralized controller can connect 64 indoor units at most
A centralized controller can connect 64 indoor units at most
A centralized controller can connect 64 indoor units at most
Reliably ground the shielding terminal
Reliably ground the shielding terminal
Reliably ground the shielding terminal
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Fig.1.4 Wiring diagram
Installation & Owner‘s Manual
5

1.5 Safety precautions
The RS485-to-RS232 module and the wires in the wiring diagram are used when the network
system needs to connect with the computer only. One computer can connect with 16 centralized
controllers at most, Namely the maximum of indoor units is 16X64=1024 ,that a network system
can connect. The centralized controllers can be distinguished by address code,which setting range
is 0 to 15. No duplicate addresses is allowed in a same network.
Note
Note
S afet y p r eca u ti o ns
! Read the safet y precautions carefull y before installing the unit.
! Stated belo w are important safet y issues that must be obe y ed.
! The meanings of all parts are as follo w s:
! Upon completio n of the installati o n, check w heth e r the trial run is n ormal, and deliv er the
u s e r 's m anu al to the us er.
Warning Means improper handling may lead to personal injury or property loss.
Means improper handling may lead to personal death or severe injury.
Note
Do not install th e equipment in a place vulnerable to leakage of flammable gases. Once
flam m able gases are leaked and left a r oun d the centralize d controller,fire may occur.
The w i ring shall adapt to the cur r ent of the centr a lized controller . Otherwise electric leakage or
h e ating m a y occur and result i n fire.
Warning
Please entrust the distributor or professionals to install the equipment. Installation by unauthorized
persons may lead to imperfect installation which may result in electric shock or fire.
Adhere to this installation manual. Improp e r installation m a y lea d to electric shock or fire.
Reinstallation m ust be perfor m e d b y professionals. Improper installation ma y
shock or fire.
lead to electric
Do not uninstall the e q on. Unauthoriz ed uninstalling ma y l ead t o
ating or fire o f th e air conditioner.
uipment w i t hout permiss i abn o rmal
operation, h e
Installation & Owner‘s Manual
6

1.6 System wiring instruction.
(a) (b)
1) Wiring diagram of building net w ork air conditioning s y stem.
(a) The wiring system is good for communication,recommended
(b) The wiring system is bad for communication,not recommended
2) System wiring diagram of centralized controller and indoor unit of air conditioner.
Both of the follo w ing w i ring mo d e s of centralized controller a nd indoor unit are applicable:
(The number of indoor unit s connected w i th each centralized controller is not beyond 64)
Indoor unit
Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit
Centralized controller
Centralized controller
Fig.1.5 Wiring diagram of centralized controller and indoor unit of air conditioner
Installation & Owner‘s Manual
7