klima SF300 Digital thermostat
Read this manual carefully and keep it with other warranty documents. The connection must be carried out by a qualified installer in accordance with local regulations. Before installing or disassembling the thermostat, always switch off the electricity in the meter cupboard. This thermostat can be installed in a single flush-mounting box 50 mm deep, according to standard DIN formats.
Technical details
- Power: 90-230Vac 50/60Hz
- Display accuracy: 0.5°C
- Probe sensor: NTC(10k)1%
- Contact capacity: 16A
- Limit temp. range: 1~70°C
- Range of temp. adjustment: 5~35°C
- Range of temp. display: 1~70°C
- Insulating condition: Normal environment
- Running program: Set per 1 week as a cycle
- Output: Switch relay
- Installation: recessed (in the wall)
- Size: 86x86x27mm
Wiring diagrams
- 1 Power supply (Line)
- 2 Power supply (Neutral)
- 3 Heating cable wire 1*
- 4 Heating cable wire 2*
- 5 N/A
- 6-7 Floor sensor connection
Order Heating wire 1 and 2 does not apply.
EARTH: Connect the earth of the heating cable and the earth of the power supply outside the thermostat.
Installation
Display icon explanation
Time setting
- (Thermostat on) Long press o to enter options
- Press▲, choose 01 and press to enter
- Press▼or▲to set minutes
- Press to confirm and enter hour setting
- Press▼or▲to set hours
- Press to confirm
- Press▼or▲to set weekday (Monday = 1, Sunday = 7)
- Press to confirm
Programming Modes
Choose mode
- Press to switch between Auto Mode or Manual mode.
ATTENTION
- Change Sensor first!
- Go to point 10b (Advanced settings B) and change sensor input to N2 before programming.
Programming (Auto Mode)
(Thermostat on) Long press o to enter options
- press▲, choose 02 and then to enter programming
- Press to choose hours, min. and temp. (with▼or▲and )
There are 3 periods (6 setpoints) per day. See the standard scedule for reference:
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
||||||
Wake up (On) | Away (Off) | Home (On) | Away (Off) | Home (On) | Sleep (Off) | ||||||
Setpoint 1 | Setpoint 2 | Setpoint 3 | Setpoint 4 | Setpoint 5 | Setpoint 6 | ||||||
06:00 | 20oC | 08:00 | 15oC | 11:30 | 20oC | 13:30 | 15oC | 17:00 | 20oC | 22:00 | 15oC |
Holiday Mode
- (Thermostat on) Long press o to enter options
- Press▲, choose 03 and press o to enter
- Press▼or▲to set days
- Press to confirm and enter temperature setting
- Press▼or▲to set temperature
- Press to confirm
Sensor error
- When an “E1” or “E2” code is shown the sensor is wrongly connected or broken. The thermostat will stop heating until the sensor is connected correctly or replaced.
Advanced settings
Advanced settings A
WARNING: Changing advanced settings may cause undesired results. Please consult your installer before entering this menu!
- Press the on/off button once, long press to enter Advanced settings menu A. Press to choose between A1 to AE. Press▼or▲to adjust.
No. | Item | Parameters | Default |
A1 | Measured temp. calibration | -9oC to +9oC | -1 oC |
A2 | Differential | 0.5oC to 2.5oC | 1oC |
A3 | Key lock | 0: Half lock
1: Full lock |
0 |
A4 | Power with memory function | 0: Power with memory function
1: Shutdown power after power off 2: Shutdown power after power on |
0 |
A5 | Backlight time | 5 to 30 seconds | 10 sec |
A6 | Programmable | 0: 5+2 (Week 1-5 and weekend 6-7)
1: 6+1 (Week 1-6 and sunday 7) 2: 7 (Week 1-7) |
0 |
A7 | Lowest temp. setting | 1 – 10oC | 5oC |
A8 | Highest temp.setting | 20-70oC | 35oC |
A9 | Low temp.protection | 1: 1oC – 10oC
Function off: > 10oC Display (—– ) |
5oC |
AA | High temp.protection | 1: 35oC-70oC
2: Function off: < 35oC Display (—- ) |
45oC |
AB | High temp. protection differential | 1-9 | 2 |
AC | Running temp. of open window function | 1: 10 – 20oC,
2: Function off: < 10oC Display (—- ) |
1 |
AD | Running time of open window function | 10 – 20 min | 10 |
AE | Reset to factory settings | Long press o until display goes blank | – |
Advanced settings B
- Press the on/off button once, long press ▲ to enter Advanced settings menu B. Press o to choose between BN to BO. Press▼or▲to adjust.
No. | Item | Parameters | Default |
BN | Options of sensor | N1 : Built-In Room sensor N2: Floor sensor
N3: Built-In Room sensor with floor sensor as limiter |
N1
(Change to N2 when using floor sensor with underfloor heating.) |
BC | Descaling | 0: Disable descaling function 1: Enable descaling function | 0 |
Bo | Product information | Can’t be changed | – |
Return difference
The room sensor has a max temperature of 45 degrees as a factory default. When the max temperature for the room sensor reaches 45 degrees and goes above this temperature, then the underfloor heating will switch off and an audible alarm will sound, the alarm will not turn off until the room sensor goes below 43 degrees.
Sensor Error Codes
When the error code “E1” shows up on the controller it indicates a room sensor failure or if the “E2” error code shows up on the controller it indicates a floor sensor failure. The thermostat will not heat until the error code is fixed.
Warranty
- We offer a 2-year warranty from the date of purchase of the thermostat.
Reference
Download Manual:
klima SF300 Digital Thermostat Operating Instructions
Leave a Reply