SPEEDKEY SK-AC2000 User manual

·Please be careful to read the manual before using the product.
·Please preserve properly for future reference.
PRODUCT
2 0 0 8
SK-AC2000
USER MANUAL
Electric Room
Thermostat
www.speed-key.com
SPEEDKEY TECHNOLOGY CO.,LTD.
SPEEDKEY TECHNOLOGY CO.,LTD
ON/OFF SPEED

CONTENT
01
02 / 03
04
05 / 09
10/ 15
01 SPEEDKEY
IMPORTANT NOTES
SK-AC2000
Dear User:
Welcome to join the user group of SPEEDKEY!
We sincerely hope that this new model can bring you joyful experiences.
IMPORTANT NOTES
PACKAGE COMPONENTS
Electric Room Thermostat (detachable) SK-AC2000SYS
Electric Room Thermostat (integral) SK-AC2000I
INTRODUCTION
PRODUCT WIRING
·
·
·Electric Room Thermostat
Electric Room Thermostat
·
·
·
·
·
This manual must be read before installation
Please read carefully this manual before installation; fully understand the principle and function of
this product.
PRODUCT SAFETY
All SPEEDKEY products have been designed and produced in accordance with CE and RoHS
requirement, with various performance indexes complying with BS4662 requirements. Incorrect
wiring may cause burning-out or malfunctions. Please refer to the wiring diagram for specific
details. Please check whether the wiring diagrams contravene local access wiring rules.
(integral)
Touch Panel can be installed in BS4662 switch box. It is recommended
that its internal installation dimension of base box is 65mm*65mm*50mm.Its external dimensions
of the producuct is 86 mm*86mm*46mm.The wiring terminal can be either screw type or non-screw
type. The switch can be used safely only when connected to live line, neutral line and earthing
line.
Room Temperature Controller (detachable)
Touch Panel can be installed in BS4662 switch box. It is recommended that its internal installation
dimension of base box is 65mm*65mm*50mm.Its external dimensions of the touch panel is 86
mm*86mm*18mm, which shall be connected to the host with 6-core cables.
SK-AirC-Remote Infrared remote controller
With infrared transmitter in this remote controller，its operating range is more than 15m in free space,
its remote control angle is less than or equal to 90 degrees, and the infrared ray can be reflected indoors.
PROPER POSITIONS FOR INSTALLATION
1、
The positions shall be convenient for easy installation and operation.
2、
The positions shall be away from water, moisture, direct sunlight and dust.
TROUBLE SHOOTING GUIDE
If the product can not work properly after the installation, please refer to TROUBLE SHOOTING GUIDE in
this manual.
Please use dry, soft cloth material for cleaning. Do not clean the switch with anti-solvents such as
alcohol, acetone and ether etc.
WARRANTY
SPEEDKEY products come with two years, equipment-only warranty.
PRODUCT INSTALLATION
PRODUCT FUNCTION OPERATION
Electric Room Thermostat (integral SK-AC2000I) NSR-Single valve circuit diagram
Electric Room Thermostat (detachable SK-AC2000SYS) SR-Single valve circuit diagram
Electric Room Thermostat (detachable SK-AC2000SYS) NSR-Single valve circuit diagram
Electric Room Thermostat (detachable SK-AC2000SYS) SR-Double valve circuit diagram
Electric Room Thermostat (integral SK-AC2000I) SR-Single valve circuit diagram
Electric Room Thermostat (detachable SK-AC2000SYS) NSR-Double valve circuit diagram
Illustration of SK-AC2000 Series
Introduction of SK-AC2000 Screen
Description of SK-AC2000 Remote Control
PARAMETER SETTING
PRODUCT SPECIFICATIONS
TROUBLE SHOOTING GUIDE
16 / 18
22
23
Electric Room Thermostat
19 /20
PROGAMMING SETTING 21

PRODUCT
2 0 0 8
SK-AC2000
ON/OFF SPEED
03 SPEEDKEY 02
SPEEDKEY
PACKAGE COMPONENTS
SK-AC2000
PACKAGE COMPONENTS
Electric Room Thermostat(integral)SK-AC2000I
HOUR MIN
SET
DOWN DE FAUL T UP
YEAR MONTH DAY
Remote for staff only
ON/OFF
HIGH T
LOW MI D
MODE
HEAT COOL
Manual
Controller driving box
L1L1C L2L3L4
L3L4
Controller panel
SK-AC2000I Thickening bracket
速 度
开/关
ON/OFF SPEED
CR2025button cell
SK-AirC-Remote
Controller of 2 fixing screws
速 度
开/关
ON/OFF SPEED
HOUR MIN
SET
DOWN DE FAUL T UP
YEAR MONTH DAY
Remote for staff only
ON/OFF
HIGH T
LOW MI D
MODE
HEAT COOL
Electric Room Thermostat(detachable)SK-AC2000SYS
Controller panel Host of the controller Fixed bracket
Manual SK-AirC-Remote
Controller of CR2025 button cell 2 fixing screws
PRODUCT
2 0 0 8
SK-AC2000
ON/OFF SPEED
SK-AC2000 Electric Room ThermostatElectric Room Thermostat
SK-AC2000T SK-AC2000M
Electric Room
Thermostat
USER MANUAL
Electric Room
Thermostat
USER MANUAL

04
SPEEDKEY
INTRODUCTION
05 SPEEDKEY
PRODUCT WIRING
SK-AC2000 SK-AC2000
With SK-AC2000 , fan speed of central air conditioning fan coil
and electric cool-hot valve switch can be adjusted to keep the room at a setting
temperature.
Electric Room Thermostat
SK-AC2000 intelligent is featured with unique design and easy operation.Electric Room Thermostat
SK-AC2000 is super-luxuriously designed,and made of
ABS fire resistant, insulating and precious metal materials with a plurality of optional
colors which meet the design requirement of decorating the house, office building
and high class hotels.
There is backlight touch panel buttons.Its luminescent LCD screen can indicate indoor
temperature,the digits stand for room temperature and user's setting temperature, setting
temperature, wind speed and time.With multi-language indication and luminescent LCD
screen, it is convenient to operate clearly in any environment,even it is dark.
Its intelligent circuit control has 3 steps of wind speed control, there are 3 optional modes
which is cooling mode,heating mode and automatic mode can be set by infrared
remote.SK-AC2000 can replace traditional mechanical air
conditioning temperature controller and it can effectively save more than 30% energy.
Electric Room Thermostat
Electric Room Thermostat
1.
2.
3.
COM L
1C L2L3
L1L4
NN
L NL
①②③
22 0 V AC
COM L
1C L2L3
L1L4
NN
L NL
①②③
22 0 V AC
Electric Room Thermostat
(see figure）
(integral SK-AC2000I) SR-Single valve circuit diagram
SR Self-spring valve
opening valve
closing
valve
opening valve fan coil
Remark: SR's self-elastic spring valve can close automatically when the power is off.
L-live line N-neutral line -earthing line
Electric Room Thermostat
(see figure)
(Integral SK-AC2000I) NSR-Single valve circuit diagram
Self-spring
valve of NSR
Remark: NSR has no self-elastic spring valve; the valve has to be closed with electrical
control.
L-live line N-neutral line -earthing line
Electric Room ThermostatElectric Room Thermostat
fan coil

07 SPEEDKEY
PRODUCT WIRING
06
SPEEDKEY
PRODUCT WIRING
SR
5
4
3
2
1
54321
6
6
E
N
L
3
2
1
E
H
N
C
Cc
N
(Cc)
(H)
(3)
(2)
(1)
(C)
(N)
(E)
(E)
(N)
(L)
5
4
3
2
16
NSR
N
QC
PASS
54321
6
E
N
L
3
2
1
E
H
N
C
Cc
(Cc)
(H)
(3)
(2)
(1)
(C)
(N)
(E)
(E)
(N)
(L)
QC
PASS
(detachable SK-AC2000SYS)SR-Single valve circuit diagram
(see figure）
Electric Room Thermostat
Air conditioning
touch control panel
Host for air conditioner controller
weak current control connection wire
6-bit control terminals wiring terminal
6-bit control terminals
-closing
valve control
-heating
valve control
-fan 3rd level
-fan 2nd level
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
-fan 1st level
-valve control
-neutral line (output)
-earthing line (output)
-earthing line input
-Neutral line (input)(100-200V AC)
-live line(input)
Air conditioning
touch control panel
6-bit control terminals
Fan coil
Cooling and
heating
water valve
Electric Room Thermostat
(see figure）
(detachable SK-AC2000SYS) NSR-Single valve circuit diagram
6-bit control terminals
weak current control connection wire
Host for air conditioner controller
-closing
valve control
-heating
valve control
-fan 3rd level
-fan 2nd level
-fan 1st level
-valve control
-neutral line (output)
-earthing line (output)
-earthing line input
-Neutral line (input)(100-200V AC)
-live line(input)
Fan coil
Cooling and
heating
water valve
Remark: NSR has no self-elastic spring valve; the valve
has to beclosed with electrical control.
Remark: SR's self-elastic spring valve can close
automatically when the power is off.

09 SPEEDKEY
PRODUCT WIRING
08
SPEEDKEY
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
PRODUCT WIRING
5
4
3
2
16
QC
PASS
SR
SR
N
N
N
(Cc)
(H)
(3)
(2)
(1)
(C)
(N)
(E)
(E)
(N)
(L)
54321
3
2
1
E
E
H
N
N
C
L
6
Cc
5
4
3
2
1
SR
6
SR
N
N
QC
PASS
54321
3
2
1
E
E
H
N
N
C
L
6
Cc
(H)
(3)
(2)
(1)
(C)
(N)
(E)
(E)
(N)
(L)
N
①②③
Air conditioning
touch control panel
Host for air conditioner controller
weak current control connection wire
6-bit control terminals wiring terminal
6-bit control terminals
-closing
valve control
-heating
valve control
-fan 3rd level
-fan 2nd level
-fan 1st level
-valve control
-neutral line (output)
-earthing line (output)
-earthing line input
-Neutral line (input)(100-200V AC)
-live line(input)
Fan coil
Cooling
water valve
heating
water valve
(detachable SK-AC2000SYS) SR-Double valve circuit diagram
(see figure)
Electric Room Thermostat
Remark: SR's self-elastic spring valve can close
automatically when the power is off.
Air conditioning
touch control panel
6-bit control terminals
6-bit control terminals
weak current control connection wire
Host for air conditioner controller
-heating
valve control
-fan 3rd level
-fan 2nd level
-fan 1st level
-valve control
-neutral line (output)
-earthing line (output)
-earthing line input
-Neutral line (input)(100-200V AC)
-live line(input)
Fan coil
wiring terminal heating
water valve
-closing
valve control
Electric Room Thermostat
(see figure）
(detachable SK-AC2000SYS) NSR-double valve circuit diagram
Remark: NSR has no self-elastic spring valve; the valve
has to be closed with electrical control.
Cooling
water valve

11 SPEEDKEY 10
SPEEDKEY
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
PRODUCT INSTALLATION(SK-AC2000I)PRODUCT INSTALLATION(SK-AC2000I)
NO NO NO NO NO NO NO
OFF OFF OFF OFF OFF OFF OFF
2
1
LN
L3 L2 L
1C
L1L4
1 Turn off main power supply of the circuit
2 Open the switch base box of touch screen panel with the screwdriver
Dismounting hole
3 Check Bs4662 switch base box whether there is enough space (50mm)to install touch
screen switch .If the space is not enough, the thickening bracket shall be used.
4 Draw out strong electric cable and network cable from Bs4662 switch base box and trim up,
press tightly on terminal block as illustration.
Wiring terminal
Note: Connect light control wires to L1,L2,L3L4 terminals.

13 SPEEDKEY 12
SPEEDKEY
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
PRODUCT INSTALLATION(SK-AC2000I)PRODUCT INSTALLATION(SK-AC2000I)
1
2
1
2
2
1
1
1
Connecting method of non-screw terminal
Connecting method of screw terminall
Please use single wire of diameter
of 1.6 or 2.0 to comply with non-screw
terminals suitable cable.
Please use single or multi copper wire of
diameter less than 4mm²to comply with
screw terminals suitable cable.
5 Mount the switch driving section into base box,and fix with 2 screws
6 Insert the wiring terminal of switch driving section into the touch screen panel

15 SPEEDKEY 14
SPEEDKEY
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
PRODUCT INSTALLATION(SK-AC2000SYS)PRODUCT INSTALLATION(SK-AC2000I)
速 度
开/关
ON/OFFSPEED
速 度
开/关
ON/OFFSPEED
速 度
开/关
ON/OFFSPEED
7 Cover the touch screen panel
8 Set program setting as you like
Illustration for installation of (detachable) SK-AC2000SYS Electric Room Thermostat
SK-AC2000T
air conditioning
control panel
bracket
wall
BS4662 switch
base box
6-cored cable
SK-AC2000M
air conditioning
controller
strong current cable
fan coil
* Fix the host beside the fan coil.controller

17 SPEEDKEY 16
SPEEDKEY
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
PRODUCT DESCRIPTION
ON/OFF SPEED
PRODUCT DESCRIPTION
Illustration of SK-AC2000 series
Liquid crystal
display screen
Air conditioning
on-off control
Decreasing
temperature control
Wind speed control
Increasing
temperature control
*The design of blue luminescence touch screen is very modern and it is also convenient
to be identified at night
*With the design of touch button backlight indication, it is easy to find its switch control,wind
speed setting, and temperature regulation function button.
*With the design of 24h clock and time control,it can achieve the function of timing and advanced
time setting.
*EEPROM can permanently keep parameters set by the user during power cut.
*Various valves (SR&NSR) can be controlled.
*It can save effectively more than 30% energy
*SK-AC2000 intelligent is suitable for installation in standard Bs4662
switch base box.
Electric Room Thermostat
Introduction of SK-AC2000 display screen
Heating mode
Cooling mode
Operating status of indoor
fan can be indicated:
3 levels as low, medium, high level
Indoor temperature 24h time display
Setting time within 24 hours
(this function can be customized)
Minimal stop time of relay (15s-15min)
Setting temperature display
Brightness of both indicators means auto-mode
Flash of illustration indicator means its operation status
Remark: SK-AC2000I (integral)has no auto mode;
it can be only controlled with one single valve.
Electric Room Thermostat

19 SPEEDKEY 18
SPEEDKEY
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
PRODUCT DESCRIPTION
HOU R MIN
SET
DOWN DEFAULT UP
YEAR MONTH DAY
TIMEDATE
Remote for staff only
ON/OFF
TEMP
HIG H
LOW MID
SPEED
MODE
HEAT COOL
mode button
PARAMETER SETTING
SK-AC2000 Remote explanation
SET button
On/Of button
Minute setting
Hour setting
date setting
heating button
Default button
DOWN button
Signal transmitting terminal
Touch screen unlock key
Touch screen lock key
Cooling button
low,medium, high
speed setting button
up button
When the touch screen is pressed, the corresponding indicator will be lighted.
The touch screen and LCD screen will automatically enter dim backlight mode if
no operation in 15 seconds. The system control and setting can be achieved
completely via the remote controller. Some special functions have to be achieved
only by the remote control.
Note:
Time setting: the system must be set up with remote controller. Press SET button on the remote at first, a nd
then press HOUR button and set up the hour,and then press MIN button and set up minute.
Date setting: the date setting must be set up with remote controller. Press SET button on the remote at first,
and then press YEAR button and set up the year;then press MONTH button and set up the
month. Press the DAY button and set up the day (customize) .
Heating mode: the system must be set up heating setting with the remote controller. Press MODE
button, and press button and set winter heating mode. The default temperature
is 2 0ºC when this system restarts. The system will automatically affirm the setting in
LCD screen and display the corresponding static icon.
Cooling mode:
the system cooling setting must be set up with the remote controller. Press MODE button, and
press button and set summer cooling mode. Its default temperature is 2 6ºC when this
system restarts. The system will automatically affirm the setting of LCD screen and display
the corresponding static icon.
Auto mode:
Press MODE button twice, the system shall enter into the auto mode, and LCD screen will
display icons. When the setting temperature is higher than room temperature, its mode
is heating mode; when the setting temperature is lower than room temperature, its
mode is cooling mode, and thus it can achieve auto constant temperature (Two valves
must be installed for auto mode, namely, cooling valve and heating valve).
Note: if the icon flashes during system operation, it means the valves are open, flash
means heating, and flash means cooling.
Note: Some advanced system can be set up the year, month and day setting with
remote controller.
This feature can prevent the relay to start in the setting time, the default settings is
zero (the relay only changes as the temperature changes).Adjust minimum relay
closing time with remote controller, press SET button twice, and use the & button
on the panel to set the m inimum relay closing time from 0-15 minutes when t he Minute
indicator flashes on touch screen.
When the room temperature drifts, correct the deviation of ± 2 º C with the remote
controller, press the SET button three times , use the & button and correct the
deviation(increase 2 or decrease 2 ) when the temperature display flashes on
touch panel
Minimum relay
closing time setting:
Room temperature
drift correction :

21 SPEEDKEY 20
SPEEDKEY
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
PROGAMMING SETTINGPARAMETER SETTING
速 度
Speed
ON/OFF
开/关 速 度
Speed
ON/OFF
开/关
速 度
Speed
ON/OFF
开/关 速 度
Speed
ON/OFF
开/关
HO UR MI N
SE T
DOWN DEFAULT UP
YE AR MONTH DAY
TI MEDA TE
Remote for staff only
ON/OFF
TEMP
HIGH
LOW MID
SPEED
MODE
HEAT COOL
HO UR MI N
SE T
DOWN DEFAULT UP
YE AR MONTH DAY
TI MEDA TE
Remote for staff only
ON/OFF
TEMP
HIGH
LOW MID
SPEED
MODE
HEAT COOL
Parameter setting
Hotel power-up scene function:
when the guest enters room and inserts the card for
power, the air conditioning system will automatically
enters into its status.
1 Set up temperature and wind
speed for the room. 2 Press the SET button on the remote,
then the touch screen will flash.
3 Press the ON/OFF button
on touch screen
4 Finally, press SET button to finish the
power-up scene.
Lock setting
This system has special lock function to facilitate its management. It will lock the
system if necessary.
Lock: The lock function can be achieved only with the remote controller. Press the SET
button once at first, then press the button to lock the system.
Unlock: the unlock function can also be achieved only with the remote controller. Press
on the remote controller and unlock the system.
Note: if the power is off, this setting will be canceled.
Timing Setting
This function can be achieved air conditioning timing switch. Press SET button twice, the
minute digits flash; then press the HOUR button, the hour digits will display 88: flash;
set up the time with & button. If the device is shut down within 15 second afer
setting it will restart on the setting time. If the device continues the operation after
setting time, it will shut down on the end of setting time ( customized.)
Close-fitting service
Professional user can edit timing setting, and then the air conditioning system will run in
accordance with the temperature setting and time setting, this shall save time and energy,
but this is paid service. Please contact local agent or our company for detail.

23 SPEEDKEY 22
SPEEDKEY
SK-AC2000 SK-AC2000 Electric Room ThermostatElectric Room Thermostat
TROUBLE SHOOTING GUIDEPRODUCT SPECIFICATIONS
5(3)A AC60/50HZ、110/240V、±10％
SK-AC2000I
100~240V AC
LM 75
±1℃
<1.2W
W86mm×H86mm×D46mm
SK-AC2000sys
Parameter
Usage range
Temperature Control range
Input power (DC)
Display Method
Temperature sensor
Button
Temperature control precision
Dissipation power
Current Loading
Service life
Installation
Dimension
Environment
Control
Operate Mode
Galvanothermy control
Single 3 level wind speed fan coil, dynamoelectric water valve,heating control
Liquid Crystal Display
Multi-language touch panel button
Touch Panel button 1 million times, touch point 100 thousand times
Install in the standard Bs4662 base box with screw and bracket
Operate temperature range: 0 —50℃.
Transport and store temperature range: -10℃ to 60℃
℃
Single valves Single valves, double valves
Heating Cooling Heating Cooling Auto mode
NO Can be up to 10A
Regulation from 16℃ to 32℃ , auto default temperature,summer 26℃ ,winter 20℃
Symptom
No backlight
of touch screen
Auto-shut of
the controlled
equipments
No shut-off of
air conditioner
Ceaseless
Flash fo
r touch screen
Possible cause Solutions
1Incorrect wiring or poor contact.
2 Main switch or creepage
protection switch is off.
3 No neutral line connected of the
system
4 Burnt fuse
5 Auto protection of the system
1 Unstable Voltage, too much
interference
2 Incorrect wiring
3 Shut by remote controller
1 Overload current
1 Broken or invalid for touch screen
2 Entering setting mode of touch screen
3 Automatic protection status of touch
screen
Make sure that input and output line
is tightly connected on the terminal
with correct connection.
Turn on the main switch or creepage
protection switch，please check the
equipment if the trip still occurs and
ensure that there is no creepage.
Connect neutral line to the terminals
correctly.
Replace the fuse with the same
parameter.
Turn off the power and restart
Stop using heavy interfering
equipment, and ask local technician
for check.
Fasten the wire, and ensure the
correct connection.
Set the control setting of remote
controller; and ensure light control
method.(Remote setting)
Reduce the load and turn on power
again. If it doesn't work, please
change the driving part.
Replace the touch screen.
Exit the setting mode by remote
controller.
Turn off the power.

SPEEDKEY TECHNOLOGY CO.,LTD.
Specifications subject to change without notice.2008 All rights reserved www.speed-key.com