Electronic Control "QRCE" User Manual
firmware 0.27
Rev.09
EN 17/ 23
ENG
6
Regulation logic
6.1.
Temperature Control probe
The control is based on the supply air temperature sensor, using the parameter it is possible to switch the control on
the return air sensor or on the sensor placed on the terminal unit.
The following three cases are then possible:
1) Control on the supply probe BTM
(password) 1
= 0 (
Supply temperature probe)
Attention
With a control on the supply, please make sure that the supply probe is placed downstream all the additional
devices such as water heat exchangers and electric batteries.
2) control on the probe inside the terminal
(password) 1
= 1 (
Terminal control probe)
SONDA ANTIGELO
BTA
CO2
Sonda interna al dispaly
Internal probe to dispaly
Sonda interna para exhibición
Interne Sonde Dispaly
SONDA ANTIGELO
BTA
CO2
NTC 10k - 25°C
°C
Sonde interne pour afficher
3) control on the return air probe BTR
(password) 1
= 2 (
Return air temperature probe)
6.2.
On-Off management
The unit can be turned On-Off in the following way:
•
Off by digital input, main priority
•
Off by BMS via MODBUS
•
Off by Remote keyboard:
1) While weekly program is not active, the unit is definitively On/Off
2) While weekly program is active, the unit can be temporarily turned On/Off till next event (in case of this
the active profile led blinks)
The set point is the same of the last time range
In case of blackout the unit restarts with the time range status
•
Off by weekly program
