
Terminals description
Switches
Thermostat functions
Technical specication
Protection functions
Control Pattern – Span +/- 0,5°C
LED Indicators
Terminal Type Function
L1 Power 24VAC Live
L2 Power 24VAC Neutral
SL Output 24V Switched Live
NSB Input Night Set Back Input (24V Active)
Output Call LED indication
Idle OFF
Heat demand RED
Cooling demand Blue
Sensor failure Red (Flashing in 1Hz)
Knob Failure Blue (Flashng in 4 HZ)
Connecting to KL08NSB1 Wiring center (purchased separately)
Slide Switch on the side with 3 positions:
UP-Heat Mode
Middle-OFF Mode
Down - Cooling mode
Default position is UP (Heat mode).
Heat Mode
Side switch in the upper position.
Cooling Mode
Side switch in the lower position.
OFF Mode
The thermostat will be turned o when the side switch is in the middle position.
NSB (Nigth Set Back) function
NSB mode depends on the NSB wired connection: 0V = NSB OFF; 24V = NSB ON
When NSB is ON the temperature will be set back to 2°C or 4°C according to the dipswitch
setting located inside the thermostat.
Heat cut o
When the room temperature is over 36°C heating output will be turned o.
Cooling cut o
When the room temperature is under 4°C cooling output will be cut o.
Short cycle protection
When the cooling mode is enabled the minimum interval between On/OFF is 3 minutes.
Heating mode
The thermostat will start heating when the room temperature will get below the setpoint.
The thermostat will stop the Heating function when the room temperature is on set point
or above.
Cooling mode
The thermostat will start cooling when the room temperature gets above the setpoint. The
termostat will stop the Cooling function when the room temperature is on setpoint or below.
The Dip Switch is located inside theThermostat - NSB 4C/2C Night Set Back Default 2C. Model: SQ60524(WB)
Voltage: 24VAC, ± 10%, 50/60 Hz
Temperature setback: 2°C-4°C
Temperature range: 5°C - 35°C
Span ± 1 / 0.5°C
Storage temperature: -20°C - 60°C
Ambient temperature: 0°C - 45°C
Operating humidity
(Non condensed)
5 – 95 % RH
Degree of protection: IP30
Terminal connection: Screwless type for solid-core wire (max wire
gauge 1 mm2)
Weight: 70 g
Valve protection Yes
Heating and cooling Yes. Manual modes changeover.
Dimension: 86 mm x 86 mm x 15,5 mm
1-8 Zones
AC 230V
Power
L1
L1
L1
L1
L2
L2
L2
L2
SL
SL
AC 24V
KL08NSB1
When the cooling mode is enabled thermostat respects minimum time interval of 3
minutes between next stop/start cooling signal.