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5. Technical Data
Room Temperature Controller
Type
RTL-TH DIGITAL (type 527 8134)
Supply voltage
230 V AC 50 HZ (195…253 V)
Room temperature setting range
5 °C ... 30 °C; in 0.5 °C steps
Return temperature setting range
10 °C ... 50 °C; in 0.5 °C steps
Temperature resolution
0.1 °C steps
Output Relay
NO contact
Switching current
10 mA ... 10(4) A, 230 V~
Output signal
Pulse width modulation (PWM)
Minimum programmable time
10 min.
Power consumption
~ 1.2 W
Accuracy of clock
< 4 min. / year
Power reserve
~ 10 years
Ambient temperature
operating 0 °C up to 40 °C (without condensation)
Storage
-20 °C up to 70 °C (without condensation)
Voltage and current for the purposes of
interference measurements
230 V, 0.1 A
Degree of protection
IP 30
Protection class of housing
II (see installation room temperature controller)
Cable length return temperature sensor
4 - 50 m
Regulation Box
Angle compensation box
6°
Angle compensation cover
6°
Depth compensation
23 mm
Axial distance valve
50 mm
Connecting dimensions for
the pipeline
3/4“ male thread,
Euro taper DIN EN
16313
Electrical connection
2-lead; 0.5 mm²
Cable layout
0.5 mm²; 2-lead
Actuator
Connection thread
M 30 x 1.5
Rated voltage
230 V ~
Maximum switch-on
0.5 A
Continuous output
2.5 - 3 W
Design
normally closed
Degree of protection /
Protection class
IP42 / II
Overtension protection /
Position indication
present
6. Ventilation
The system can be ventilated as necessary using the
ventilation valve installed.
7. Flowmeter
Flowmeter regulating valve for the regulating the vo-
lume flow. The upper part of the valve consists of a
valve cone with a rising spindle and a handwheel for
adjustment. The sight glass is installed in the hand
wheel where the flow can be read directly in L/min
on the printed scale depending upon the position of
indicator unit. The adjustment on the flowmeter can
be blocked by the delivered stop cap and sealed if
desired.
Volume Flow Regulation
Remove the lock cap. The control is performed by
turning the black handwheel whereby the valve
cone will be turned down when turning to the right.
The volume flow will decrease until reaching the
complete blocking. The opening of the valve is per-
formed by turning it in the opposite direction.
Cleaning Flowmeter
The sight glass and measuring spring can be re-
moved for maintenance and cleaned, even at full
system pressure. In order to do so, hold the black
