Belimo CR24 Series, Product Information

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Dimensions, installation, commissioning, service
CR24-..
28 www.belimo.com
Pr
oduct information S4-CR24-.. • en • v2.3 • 08.2022 • Subject t
o changes
Control sequence simulation (CR24-B1, CR24-B2, CR24-B3)
CR24-B1, CR24-B2, CR24-B3
The connected actuators, and thus also the heating and cooling control sequences, can be
simulated independently of the room temperature in simulation mode.
This permits the air volume ( V ‘
min
and V ‘
max
) to be tested in air systems or the maximum heating
and cooling capacity in water systems.
+3
–2
–1
+2
+1
W = X
–3
0
Y [V]
t
S
[°C]
10
2
0
ao1
ao2
ao1
X
pH
X
pC
0 –3 +3
ao2
ao3
Potentiometer (setpoint adjustment)
for simulating the room temperature
Heating Cooling
CR24-B2E
The simulation mode for the CR24-B2E is basically as described above.
Unlike water operated air heaters, electric air heaters are not allowed to be operated without a
flow. Simulations can be carried out on the CR24-.. at any time, even if the ventilation system is
not operating.
The two triac outputs are activated for a maximum of 15 seconds in simulation mode to prevent
overheating due to operation without ventilation. To activate these outputs again, the potentio-
meter must be reset via the “0” position to the heating range.
+3
–2
–1
+2
+1
W = X
–3
0
O
S
10
2
0
X
pH
X
pC
0 –3 +3
out
3
out
1
II III I
max. 15 s
Potentiometer (setpoint adjustment)
for simulating the room temperature
Notes
– The external control signals (di1, di2 and di3)
are suppressed while the simulation is active.
– The potentiometer changes during simulation
mode should be done slowly to avoid over-
shooting of the output values due to the system
depending adjuster damping.
– A-types (controllers without operation panel):
please do reset the potentiometer to the 0-posi -
tion after simulation to avoid setpoint deviations.
– Simulation mode is automatically deactivated 15
minutes after the last user action (auto-reset).