23
www.juwent.com.pl
Measuring range
-5...+15
O
C
1-2 Alarm freezing
1-4 Normal operation mode
Factory set-point
5
O
C
Contact type
switching
Capillary length
3 or 6m
Protection level
IP54
DIFFERENTIAL PRESSURE SWITCHES
The pressure switch is a component designed for indicating of air filter contamination.
Measuring range
20...1000Pa
3-1 Closed contact at
pressure drop
3-2 Closed contact at
pressure
Filter monitoring
Contact type
switching
Protection level
IP54
AIR DAMPER ACTUATORS
To control air dampers actuators are used, and they are intended to set an air damper in a desired
position. Depending on control method for dampers within the units, actuators of the following
types are used:
•open/close (on/off) with return spring.
•open/close (on/off) without return spring.
Actuator type
on/off
On/off with the spring
1 - Potential
2 - Ground
On/off without the spring
6 - Control signal open
7 - Control signal close
Supply voltage
24V AC
Close / open time
150 sec.
Protection level
IP54
VALVES
Three-way valves applied within the system are intended to mix, and therefore should be installed
on the return due to lower temperatures of return ducts within the heating system.
Symbol
DN k
VS
, m
3
/h
t[
O
C]
PN
V20-110
20
4
1...110
16
V25-110
25
6,3
1...110
16
V32-110
32
16
1...110
16
V40-110
40
25
1...110
16
V50-110
50
31
1...110
16
S: Supply
R: Return
H: Heat exchanger
Z: cut-off valve manually operated
P: circulation pump
MV: 3-way control valve operated
by valve actuator