CIAT FLOWAY ACCESS User Manual

3.4 - Managing the lters
Pressure switches measure the lter clogging (intake and exhaust), and a fault appears if the lter is clogged (new lter must be
ordered and replacement scheduled) or blocked (machine is shut down).
If a pressure switch is triggered, the "lter dirty" fault is triggered. If this fault is present for more than a week, the "lter blocked" fault
is triggered. If the "lter blocked" fault is cleared and the pressure switch is triggered less than an hour after the machine restart, then
the "lter blocked" fault is triggered again. It is possible to view the pressure switch status of each lter (P338 and P339).
3.5 - Temperature control
The set temperature may be:
- the return air temperature
- the ambient temperature (if the Th-Tune room remote control is present)
- the supply air temperature
This choice is made via parameter P154
The temperature is set via a PID which calculates a heating requirement (P395) or a cooling requirement (P394). There is one
heating setpoint (P180) and one cooling setpoint (P170), with the option to have a deadband between these two di󰀨erent setpoints.
The calculated requirement is then split between the heating and cooling elements.
Heating requirement (%)
P182 Proportional band
Heating
setpoint
Setpoint 1: P180
Setpoint 2: P181
Setpoint 1: P170
Setpoint 2: P171
Room temperature Return
air temperature Supply air
temperature
Cooling
setpoint
Cooling requirement (%)
P172 Proportional band
- The heating and cooling setpoints must not overlap in automatic mode (P155)
- in heating only or cooling only mode, the setpoints may overlap.
154 Target temperature selection
155 Temperature control mode selection
168 Heating or cooling change authorisation time delay
Cooling PID:
170 Temperature setpoint 1 in cooling mode
171 Temperature setpoint 2 in cooling mode
172 Temperature control PID proportional band (P) in cooling mode
173 Temperature control PID integral time (I) in cooling mode
174 Temperature control PID derivative time (D) in cooling mode
Heating PID:
180 Temperature setpoint 1 in heating mode
181 Temperature setpoint 2 in heating mode
182 Temperature control PID proportional band (P) in heating mode
183 Temperature control PID integral time (I) in heating mode
184 Temperature control PID derivative time (D) in heating mode
3 - FEATURES
EN-15 FLOWAY ACCESS

CIAT FLOWAY ACCESS Specifications

General

Brand	CIAT
Model	FLOWAY ACCESS
Category	Air Handlers
Language	English