Carel k.Air, User Manual, Page: 41 / 192

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Menu description k.air +030220981 rel. 1.2 - 01.12.2020
User parameters
User parameters (A, W, X, Z) are accessible without a password (=0000) and include the following categories:
• A. Unit: Set point (read only), Scheduler, Confi guration, Manual mode;
• W. Inputs/outputs: terminal and corresponding value measured. The type of probes and actuators and their position on the
terminal block depend on the software loaded on the controller;
• X. Settings: Date/time, Language, Unit of measure, User password change;
• Z: Logout: exit programming menu (and login again with other password).
In quick access menu Qc, users can directly set:
• The temperature set point based on the control probe (supply, room) and static pressure/air fl ow/air quality;
• Heating/cooling operating mode.
7.2 S ervice parameters
In addition to the user parameters, the installer (password 1234) can modify the following categories of parameters:
A
a. Temperature set point, pressure/air fl ow, ppm (air quality), humidity, in the diff erent operating modes: economy, comfort;
b. Daily time bands, closing periods, holidays
– select the control probe: supply or room;
– enable and confi gure dehumidifi cation control;
– operating mode changeover thresholds based on the outside temperature;
– freecooling/freeheating settings;
– enable auxiliary control, enable/disable from BMS;
– export/import confi guration
c. Manual mode:
– possibility to activate each device at a certain percentage during normal operation
B
a. Type of fl ow switch, post- ventilation, enable night- time ventilation functions (PID parameters), freecooling/freeheating, air
quality control, temperature control (with fans);
b. Supply fan. Request in the event of air pressure/quality probe error, request in the event of frost protection, minimum and
maximum output limits, operating hours before maintenance alarm.
Note:
parameters Bb07 to Bb22 refer to the ebm-papst EC fan (fan type = Modbus).
c. Return fan. See Bb.
Note:
parameters Bc07 to Bc22 refer to the ebm-papst EC fan (fan type = Modbus).
C
a. Damper parameters: (the outside air and mixing damper are ON/OFF or modulating, the exhaust damper is only On/Off ),
opening time, enable air quality control. For modulating dampers, select the type 0-10 V, for the On/Off damper select the
activation logic (see Commissioning);
D
a. PID parameters for pre-heating, main and reheating coils
b. Pump group confi guration
c. Heating/cooling mode for the main coil
E
• Heat recovery unit: PID parameters, activation thresholds, defrost parameters;
• Modulating bypass damper: minimum and maximum limits, operating hours;
F
• Humidifi er: type (modulating or CAREL humiSonic controlled via serial), set operating hours before alarm;
• Enable humidifi cation control, PID parameters;
• Humidifi er operating times: time between washing cycles, read variables;
• FW version, humidifi er operating hours and alarm code.
G : Filters:
operating hours and hours remaining until maintenance.