ENG
Code Description
Def Min Max UOM User
User
terminal
St2
Air on probe set point with double thermostat
50
r1
r2
°C/°F
S
NO
rd2
Set point St2 differential with double thermostat
0.0 = function disabled
0
0
20
°C/°F
S
NO
db1
Double thermostat function logic
0/1: AND logic/OR logic
0
0
1
-
M
NO
The control request occurs:
l
when this is active on both probes, as if there were two thermostats in series, when db1 = 0. At night
the intake probe is controlled and the outlet probe always signals the request, in the day the outlet
probe is controlled and the intake probe always signals the request.
l
when one of the probes signals the request, as if there were two thermostats in parallel, when db1 =
1
Fig.5.j
Fig.5.k
Ref.
Description
Sm
outlet probe (air off)
Sr
intake probe (air on)
R
control request
Ref.
Description
rd
differential for St
rd2
differential for St2
Below is an example of the temperature trend on a vertical showcase during the day and at night.
Fig.5.l
56
| 5. Functions
0300086EN rel. 1.0 – 04.09.2018
