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C35-VAV
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C35-VAV
The AI1 analog input
parameter allows the
following sensors to be
connected and enabled
in In/Out menu:
•
VAV actuator position
signal
•
Remote CO
2
sensor
•
Disabled (default)
Select to save your
changes.
13. Input/Output Menu
13.1. Analog input (AI1)
The remote sensor can be activated by selecting “Remote sensor” from the available ‘Sensor
function’ parameter options. Once selected, the Remote sensor parameter will appear. Select
to save your changes.
The Floor heating sensor function requires floor temperature sensor to be connected and
enabled in settings. Enable floor sensor by selecting Floor sensor from the available “Sensor
function” parameter options. Select to save your changes.
Max Floor Temperature: If the floor sensor parameter is enabled, a “Max floor temperature”
parameter will appear at the bottom of In/Out screen 1/2. Adjust maximum floor temperature
by using the +/- buttons. Select to save your changes.
13.4. Temperature sensor
Users can define how temperature readings will be displayed by pressing the button next to
“Temperature Sensor“. The options are:
•
Internal
: The temperature as measured by the device’s inbuilt sensor.
•
Remote
: If a remote sensor is connected, the temperature as measured by the remote
sensor.
•
Min, Max, Average
: If a remote sensor is connected, the measured temperature can be a
calculated using minimum, maximum or average reading of the two sensors.
Select to save your changes.
13.3.3. Floor sensor
13.2. Binary input (BIN1)
If a window contact swich or presence sensor is connected to binary input (BIN1) change Binary
input parameter from “Disabled” to “Window contact” or “Presence sensor”.
If the “Window contact” parameter is selected and window’s contact switch is triggered by an
open window, then the system will go into standby mode to save energy. The operating status
on the home screen will state “Standby - Window is Open” to notify users. Once the window
has been closed, the system will resume normal operation.
If the “Presence sensor” parameter is selected and presence sensor is not detecting any
presence the system will go from “Comfortable mode” to “Economy mode”. The operating status
on home screen will state “Economy mode – No presence detected”. Once the presence is
detected the system will resume to “Comfortable mode”.
The contact polarity can be reversed by selecting the Binary input polarity “Normally open” or
“Normally closed”.
Select to save your changes.
13.3. Sensor Function
The analog RTD sensor (PT1000) parameter has the following available options if the sensor is
connected to the device’s RTD input:
•
Disabled (Default value, an external sensor is connected but has not been enabled)
•
Changeover sensor
•
Remote sensor (Temperature only)
•
Floor sensor
If a sensor is not connected or a sensor with different resistance to that of a PT1000 is
connected, a message “Not connected” will be shown instead.
A changeover sensor allows the system to automatically switch between heating and cooling
mode (or vice versa) using the “Sensor function” parameter on Screen 1/2 of the Input / Output
menu. If the sensor function parameter is set to “Changeover”, the device will automatically
change from heating or cooling as required. Changeover will be determined by the temperature
in the duct or pipe. If the temperature in the duct or pipe is above 28°C the control mode will
change to heating or if the temperature is below 18°C the control mode will be changed to
cooling. Select to save your changes.
13.3.1. Change Over
13.3.2. Remote sensor
13.5. Values
Screen [2 / 2] of the
In/Out menu summarizes
all of the values and states
of the device’s inputs and
outputs. These values are
refreshed every second.
14.1. VAV systems without ECM fan
14. Variable Air Volume applications using C35-VAV
D
- Damper actuator 0 - 10 V
T1
- Remote temperature sensor Pt1000
Q1
- Remote air quality sensor 0 – 10 V
Main configuration
Control sequence:
Heating only
Cooling only
Cooling or heating
Ventilation
Cooling/heating coil:
Disabled
Fan operating mode:
Off
Dehumidification:
Disabled
14.1.1. Single duct
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