thermokon JOY SR 5DO Electronic Fancoil Thermostat User Guide
Issue date: 01.05.2023
Page 5 / 11
»FUNCTION DESCRIPTION – CONTROLLER/FAN STAGES
JOY Fancoil 5DO (85..260 V ~)
JOY Fancoil EC AO2DO (85..260 V ~)
JOY Fancoil EC 3AO (24 V ~/=)
PI controller (PWM) &
2-point/3-point controller
(configurable)
PI controller (PWM) &
2-point/3-point controller
(configurable)
PI controller (0..10 V)
Fan stages (all types)
In automatic mode the fan speed is linked to the controller. The assignment of the fan stage to the control (heating / cooling, only heating, only
cooling) is freely selectable. To ensure that the fan motor starts reliably, a period of time can be configured in which the fan starts with maximal
value. Using one or more time channels, the fan control have to be set per timechannel and per period. Via the touch surface the user has the
option to override the settings of the device every time. When the next time channel starts, the fan speed is set to the configured value. The fan is
set to automatic mode when the user changes the occupancy state (occupied↔unoccupied).
Heating/ cooling with PI-controller (PWM) (only 5DO and EC AO2DO)
The time response of the PI control loop depends on the control parameters xp for the proportional area and tn for the reset time of the integral
range. In case of an error, the P portion immediately changes the position value proportionally to the error variable, while the integral portion
takes effect after a certain time.
The resulting actuating variable is output as a pulse-width-modulated signal directly to the outputs.
Heating/ cooling with 2-point-/ 3-point-controller (only 5DO and EC AO2DO)
In the case of temperature control, the 2-point controller only knows the switching states heating ON and heating OFF. The 3-point controller also
knows the switching state of cooling. Two - and three-point controller work with a hysteresis.
Heating/ cooling with PI-controller (0..10 V) (only EC 3AO)
The time response of the PI control loop depends on the control parameters xp for the proportional area and tn for the reset time of the integral
range. In case of an error variable, the P portion immediately changes the position value proportionally to the error variable, while the integral
portion takes effect after a certain time.
The resulting manipulated variable is output as an analogue 0..10 V signal directly to the outputs.
EC Fan automatic mode with PI-controller (only EC 3AO and EC AO2DO)
(for EC AO2DO with two-point/three-point controller, the temperature range for controlling the 0..10 V EC fan is parameterised separately)
The 0..10 V (0..100%) control of the fan is proportional to the calculated manipulated variable of the PI controller.
i.E.: Calculated actuating variable 65% → Fan control with 6,5 V
Calculated actuating variable 22% → Fan control with 2,2 V
EC Fan manual with PI-controller (only EC 3AO and EC AO2DO)
Up to 5 steps (steps) can be set using the configuration software. The set number of steps is divided linearly to the manipulated variable of 0..100%.
i.E.: Max. steps (stages) = 5 Max. steps (stages) = 3
Stage 1 = 20% | Stage 2 = 40% | Stage 3 = 60% | Stage 4 = 80% | Stage 5 = 100% Stage 1 = 33% | Stage 2 = 66% | Stage 3 = 100%
»DISPLAY
Value Screen
internal sensor values
external sensor values
(configurable)
(additional humidity value optionally configurable)
Header (value/ symbdisplay)
Time, weekday, date, ECO symbol (mode dependent)
Alarm symbol (higher priority than ECO-Symbol)
Footer (symbol display)
Occu-
pancy
Window contact/
dew point
Symbols for heating/cooling
mode, occupancy, window
contact, etc.
Heating/
Cooling
Fan stage
The symbol „Timechannel active“
is only shown when a time
channel is active.
Time-
channel
active
JOY_SR Fancoil_Modbus_Datasheet_en © 2023
| General | Details |
|---|---|
| Name | thermokon JOY SR 5DO Electronic Fancoil Thermostat User Guide |
| Make | thermokon |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.59 MB |
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