WRF04 x BUS

A surface-mounted room operating unit with integrated temperature sensor and optionally with display showing the actual value. The device can be mounted directly on the wall, on a flush-mounted box or in conjunction with a surface-mounted frame available as an accessory. Predetermined breaking points for surface-mounted installations are integrated. Possible operating elements are potentiometers, LEDs, buttons and rotary switches for setpoint shifting, fan level adjustment, presence detection, control of other devices and visual feedback. The connection terminal in the lower enclosure part allows pre-wiring.

Measuring values	temperature
Network technology	BACnet MS/TP, LON FT (free topology)
Power supply	15..24 V = (±10%) or 24 V ~ (±10%) SELV
Power consumption	BACnet: typ. 0,4 W (24 V =) \| 0,6 VA (24 V ~), LON: typ. 0,6 W (24 V =) \| 1,7 VA (24 V ~)
Measuring range temp.	0..+50 °C
Accuracy temperature	±0,5 K (typ. at 21 °C)
Inputs	2x entry for floating contacts
Set point (P)	potentiometer
Rotary switch (S)	for fan stage adjustment (max. 5 stages), 5-stages (auto,0,I,II,III), 2-stages (0,I), 3-stages (0,I,II), 4-stages (0,I,II,III), switching capacity max. 5 W
Button (T)	for presence detection, switching capacity max. 600 mW
LED (D)	for status feedback, green (standard), several LEDs possible (e.g. green, yellow, red)
Display	LCD 29x12 mm, monochrome, optional, for LON FT
Enclosure	PC, pure white
Protection	IP30 according to EN 60529
Cable entry	breaking points top/bottom, rear entry
Connection electrical	terminal block, max. 1,5 mm²
Ambient condition	-35..+70 °C, max. 85% rH non-condensing
Mounting	surface mounted on flush-mounting box (Ø=60 mm), or to be mounted flat onto the surface using screws, with frame for surface mounting (accessory) or directly on the wall, base part can be mounted and wired separately
Notes	for further variants see chapter room controller, special labelling available on request, special painting available on request, for other operating elements please request