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C35-VAV
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C35-VAV
To set a lock password to
limit access to the unit’s
home screen, select the
button on the home screen
to enter the Settings menu.
Select “Advanced” and then
“Security”.
To activate a user password
on the home screen press the
“Lock Home Screen” button
so that its status is “ON”.
Select the “User password”
button from the options
screen and then input a
password using the keypad.
Once a 4 digit password
has been set, press the “OK”
button.
Return to Home screen
:
When this function is
enabled, the device will
return to the home screen
automatically from any menu
screen after 1 minute of
inactivity.
Note
: The default Admin
password (0000) can be
used to bypass the user
password.
12.2. Security
12.3.4. Dehumidification
12.3.5. Occupied Mode
Timer
12.3.2. Cooling / Heating
Coil
12.3.3. Fan Operating Mode
If there are optional heat exchangers or modulating electric heaters, it is necessary to enable
the analog output signal for the valve(s) through the “Cooling / Heating Coil” parameter.
A fan can be placed in series or in parallel with a VAV box. The “Fan operating mode” parameter is
off by default. The parameter can be set to “Series” or “Parallel” depending on the configuration.
Series
: If the fan is configured in series, the VAV damper actuator and fan are controlled
according to temperature or air quality demand. The fan maximum and minimum speed can be
adjusted in Parameters [5 / 5] Fan AQ PID and ECM voltage).
Parallel without heat exchanger
: If the fan is configured in parallel, then the fan is used to
recirculate warmer ceiling air. The parallel fan operates only when Heating is active and according
to the ambient temperature (the lower the ambient temperature, the higher the fan speed).
Parallel with heat exchanger
: VAV damper actuator will be controlled according to air quality
demand. The fan and heat exchange valve will be controlled according to room air temperature.
C35-VAV... can be configured to dehumidify a controlled zone with the dehumidification
parameter. The options are:
Enabled
- The following system configuration is required to enable dehumidification:
•
Control sequence is set to “Cooling” or “Cooling and Heating”.
•
“Cooling / Heating coil” parameter is enabled.
•
The unit or system has a built in relative humidity sensor. (optional)
While operating in cooling mode, the valve of the heat exchanger will control relative humidity
in line with each working modes humidity setpoints. (See page 18, Setpoints).
Disabled
- Dehumidification will be disabled. Select to save your changes.
The default duration for the occupancy timer is 60 minutes. To adjust the occupancy timer
duration, enter screen 01/05 of the parameters menu and increase or decrease the number of
minutes using the +/- buttons. Select to save your changes.
12.3.1. Control Sequence
12.3. Parameters [1 / 5] Main Configuration
12.4. Parameters [2…5 / 5] VAV voltage, VAV PID and ECM parameters
12.4.1. VAV voltage output
To change analog output
(AO1) voltage range from
0-10 V to 2 – 10 V and vice
versa press the VAV voltage
output button. Select to
save your changes.
The control sequence defines whether the controlled system is capable of heating, cooling
or ventilating the zone. Select the desired control sequence by pressing the button next to
“Control sequence“. The options are:
•
Heating only
•
Cooling only
•
Cooling or heating
•
Cooling and heating
•
Ventilation
Summary of Contents for C35-VAV...
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