FUNCTIONS
The Sauna controller with evaporator block allows you to control and monitor your sauna. All conventional heaters are compatible (switched heaters and heaters that accept a 0-10V control signal). The evaporator can be switched on and off but can also be controlled with an analogue 0-10V signal.
The function block has a timer function, fan and drying control, as well as a safety shut down in case you forget to switch off the heater. You can also use door contacts with the sauna to alert you if the door has been left open and is wasting heat and energy!
You can choose between different operating modes such as steam sauna, Finnish sauna, herbal sauna etc.
The function block can also be used in the user interface, for control whilst on the move! It is important that when using this block that you observe the safety regulations of your country.
Make sure to select appropriate sensors for the heat in the sauna!
See here our sauna temperature sensor in the webshop.
An over temperature manual cutoff thermostat must also be installed!
BASIC SETUP
Connect the temperature sensor for the sauna to the input AI, and then connect the humidity sensor to AIh.
The outputs are for the various types of heaters, AQ for 0-10V analogue, Q1, Q2 and Q3 for stage L1, L2 and L3 heaters. If the heater is a single phase using Q1 we need to set the parameter M to 1.
Where you connect the evaporator to depends on the control type. If it is 0-10V analogue then connect to AQv, if it is digital on/off then connect to Qv.
Finally connect the fan to the output Qf.
You can now control the block in the user interface. The sauna on/off function (Tr input) can also be done through a switch on the wall, for example outside the sauna itself.
When the block is in a manual mode the target values for temperature (input T) and humidity (input H) are used.
If the evaporator has a water shortage sensor this can be connected to the input LW so an alert can be triggered. Also if the input LW is triggered and has a value of 1 (digital input) the evaporator will no longer turn on.
OVERVIEW
INPUTS
| AIm | Analogue input for mode | 0 = Off 1 = Manual Finnish sauna 2 = Manual humidity sauna 3 = Automatic Finnish sauna 4 = Automatic herbal sauna 5 = Automatic hot bath sauna 6 = Automatic steam sauna |
| IFm | Digital input | Manual Finnish sauna |
| IHm | Digital input | Manual humidity sauna |
| IF | Digital input | Automatic Finnish sauna |
| IH1 | Digital input | Automatic herbal sauna |
| IH2 | Digital input | Automatic hot bath sauna |
| IH3 | Digital input | Automatic steam sauna |
| Tr | Trigger digital input | Turns the sauna on or off |
| T | Analogue input for desired target temperature in manual mode | Set either with a virtual input connector or a timer switch |
| AI | Analogue input | For actual temperature, connect the sauna sensor to this |
| H | Analogue input for desired target humidity in manual mode | Set either with a virtual input connector or a timer switch |
| AIh | Analogue input | For actual humidity, connect the sauna humidity sensor to this |
| Tf | Trigger digital input for the fan | Turns the fan on and off, output Qf |
| Tc | Starts the hourglass timer | The output AQt shows the time counting down and Qta gives the timer’s status, can set the time with parameter T, Qte pulses when the timer is finished |
| D | Digital input | Connect the door position sensor to this (only shows the door state in the visualisation) |
| Ab | Analogue input | For the bench temperature sensor |
| P | Digital input | Used for presence detector |
| LW | Digital input | Gives the status of water shortage |
| R | Reset | Sets all the outputs to off |
| Dis | Disable | Disables all the inputs and is useful for childlock function |
OUTPUTS
| AQ | Analogue output | 0-10V control |
| Q1 | Digital output | For turning Phase 1 (L1) on/off |
| Q2 | Digital output | For turning Phase 2 (L2) on/off |
| Q3 | Digital output | For turning Phase 3 (L3) on/off |
| AQv | Analogue output | For controlling the evaporator with 0-10V |
| Qv | Digital output | For controlling the evaporator digitally |
| Qa | Status output for whether the sauna is active or not | On when the sauna is active |
| Qf | Digital output for fan control | Switched on by input Tf |
| AQt | Remaining time for hourglass timer | Time is in seconds [s] |
| Qd | Digital output status for airing phase | On when the airing phase is active |
| AQm | Current operating mode | 0 = Off 1 = Manual Finnish sauna 2 = Manual humidity sauna 3 = Automatic Finnish sauna 4 = Automatic herbal sauna 5 = Automatic hot bath sauna 6 = Automatic steam sauna |
| Qe | Error status | Pulses when actual temperature is higher than desired temperature, see parameter Ts |
| AQs | Status output for target temperature | Displays the current target temperature |
| AQh | Status output for target humidity | Displays the current target humidity |
| Qte | Status output for end of timer | Pulse when timer countdown finishes |
| Qta | Digital output | Gives the timer’s status (on/off) |
PARAMETERS
| Tc | Temperature correction | Adjustment for the actual temperature in the seating position (use if no bench sensor present) |
| Td | Airing temperature | Temperature required for the airing period |
| Tn | Fan duration after airing time finished | Running time of the fan required to achieve Td |
| Tt | Duration of hourglass timer | This begins with each new pulse on input Tc. The remaining time is displayed on AQt output |
| To | Maximum allowed temperature before a safety shutdown | If temperature exceeds this then the error is displayed on output Qe |
| Ts | Time before a safety shutdown occurs | After this time the sauna is turned off automatically |
| P | PWM period | Pulse width modulation period in seconds [s] |
| V | Gain | Gain in case of deviation |
| M | Type of AC input used | 0 = Three-phase 1 = Single-phase 2 = 2 phase during condensation, 3 when used without condensor |
