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Thank you @Aaron for you answer,

I used the example you mentioned above and adapted it to my problem, I also set the temperature difference between cutoff and setpoint to 4C as you said, but unfortunately this does not work and gives the following error.

* Severe * DualSetPointWithDeadBand: When Temperature Difference Between Cutout And Setpoint is applied, the heating setpoint is greater than the cooling setpoint.

* ~~~ * occurs in Zone=WALK-IN ZONE During Warmup, Environment=RUN PERIOD, at Simulation time=08/10 00:00 - 00:03

* ~~~ * Zone Heating ThermostatSetPoint=-22.00

* ~~~ * Zone Cooling ThermostatSetPoint=-22.00

* Fatal * Program terminates due to above conditions.

I then changed the value of the temperature difference between cutoff and setpoint to 3C and the result was not what I expected (figure below), as you can see, the temperature fluctuations are not steady and the temperature does not reach the two defined values -18°C and -22°C.

Thank you @Aaron for you answer,

I used the example you mentioned above and adapted it to my problem, I also set the temperature difference between cutoff and setpoint to 4C as you said, but unfortunately this does not work and gives the following error.

* Severe * DualSetPointWithDeadBand: When Temperature Difference Between Cutout And Setpoint is applied, the heating setpoint is greater than the cooling setpoint.

* ~~~ * occurs in Zone=WALK-IN ZONE During Warmup, Environment=RUN PERIOD, at Simulation time=08/10 00:00 - 00:03

* ~~~ * Zone Heating ThermostatSetPoint=-22.00

* ~~~ * Zone Cooling ThermostatSetPoint=-22.00

* Fatal * Program terminates due to above conditions.

I then changed the value of the temperature difference between cutoff and setpoint to 3C and the result was not what I expected (figure below), as you can see, the temperature fluctuations are not steady and the temperature does not reach the two defined values -18°C and -22°C.

Thank you @Aaron @Boranian for you answer,

I used the example you mentioned above and adapted it to my problem, I also set the temperature difference between cutoff and setpoint to 4C as you said, but unfortunately this does not work and gives the following error.

* Severe * DualSetPointWithDeadBand: When Temperature Difference Between Cutout And Setpoint is applied, the heating setpoint is greater than the cooling setpoint.

* ~~~ * occurs in Zone=WALK-IN ZONE During Warmup, Environment=RUN PERIOD, at Simulation time=08/10 00:00 - 00:03

* ~~~ * Zone Heating ThermostatSetPoint=-22.00

* ~~~ * Zone Cooling ThermostatSetPoint=-22.00

* Fatal * Program terminates due to above conditions.

I then changed the value of the temperature difference between cutoff and setpoint to 3C and the result was not what I expected (figure below), as you can see, the temperature fluctuations are not steady and the temperature does not reach the two defined values -18°C and -22°C.

Thank you @Boranian for you answer,

I used the example you mentioned above and adapted it to my problem, I also set the temperature difference between cutoff and setpoint to 4C as you said, but unfortunately this does not work and gives the following error.

* Severe * DualSetPointWithDeadBand: When Temperature Difference Between Cutout And Setpoint is applied, the heating setpoint is greater than the cooling setpoint.

* ~~~ * occurs in Zone=WALK-IN ZONE During Warmup, Environment=RUN PERIOD, at Simulation time=08/10 00:00 - 00:03

* ~~~ * Zone Heating ThermostatSetPoint=-22.00

* ~~~ * Zone Cooling ThermostatSetPoint=-22.00

* Fatal * Program terminates due to above conditions.

I then changed the value of the temperature difference between cutoff and setpoint to 3C and the result was not what I expected (figure below), as you can see, the temperature fluctuations are not steady and the temperature does not reach the two defined values -18°C and -22°C.

Thank you @Boranian for you answer,

I used the example you mentioned above and adapted it to my problem, I also set the temperature difference between cutoff and setpoint to 4C as you said, but unfortunately this does not work and gives the following error.

* Severe * DualSetPointWithDeadBand: When Temperature Difference Between Cutout And Setpoint is applied, the heating setpoint is greater than the cooling setpoint.

* ~~~ * occurs in Zone=WALK-IN ZONE During Warmup, Environment=RUN PERIOD, at Simulation time=08/10 00:00 - 00:03

* ~~~ * Zone Heating ThermostatSetPoint=-22.00

* ~~~ * Zone Cooling ThermostatSetPoint=-22.00

* Fatal * Program terminates due to above conditions.

I then changed the value of the temperature difference between cutoff and setpoint to 3C and the result was not what I expected (figure below), as you can see, the temperature fluctuations are not steady and the temperature does not reach the two defined values -18°C and -22°C.

UPDATES

This is the result after I changed the outputs frequency from Timestep to DetailedDetailed. The cutoff is set to 3C

Thank you @Boranian for you answer,

I used the example you mentioned above and adapted it to my problem, I also set the temperature difference between cutoff and setpoint to 4C as you said, but unfortunately this does not work and gives the following error.

* Severe * DualSetPointWithDeadBand: When Temperature Difference Between Cutout And Setpoint is applied, the heating setpoint is greater than the cooling setpoint.

* ~~~ * occurs in Zone=WALK-IN ZONE During Warmup, Environment=RUN PERIOD, at Simulation time=08/10 00:00 - 00:03

* ~~~ * Zone Heating ThermostatSetPoint=-22.00

* ~~~ * Zone Cooling ThermostatSetPoint=-22.00

* Fatal * Program terminates due to above conditions.

I then changed the value of the temperature difference between cutoff and setpoint to 3C and the result was not what I expected (figure below), as you can see, the temperature fluctuations are not steady and the temperature does not reach the two defined values -18°C and -22°C.

UPDATES

This is the result after I changed the outputs frequency from Timestep to Detailed. The cutoff is set to 3C