Stuhl SF22 thermostat 24Vac, 4 pipes system/cooling

Description

Stuhl SF22.2T / 2.S4 Thermostat 24Vac 2 x triac. 4 pipe. Heating / cooling / off / automatic via slide switch, energy saving input, max 5 thermomotors per thermostat, for NO and NC thermomotors.

Dead zone (internal) adjustable from 1 to 5K, switching differential fixed +/- 0.2K, dew point sensor FKTP1 connectable (adjustable via jumper) “

Technical data
Type: SF 22
Temperature range: + 5 to + 30 ° C
Hysteresis ± 0.2 K.
Dead zone adjustable between 1.0 to 5.0K
Sensor KTY- semiconductor sensor internal
Temperature setting: rotary knob
Operating voltage: 24Vac (20 … 30V AC)
Energy saving: temperature reduction to 4K (when heating), cooling function is off
Output: Triac output potential utilized
Optical indication: Heating = red LED, cooling = yellow LED
max. permissible switching current: 0.8A, 24Vac (max. 5 thermomotors)
Electrical connection: screw connection
Ambient temperature: 0 to + 40 ° C
Operation: 1.C (no limit)
Measured voltage: 4.0 kV
Degree of pollution 2
Casing Material top part ABS (impact resistant, flame retardant)
bottom PA6 GF30
Size 81 x 81 x 16 (25) mm
Mounting on flush-mounted box
Cable entry via flush-mounted box
Enclosure IP 30
Protected II according to EN 60730
Weight approx. 90 g