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Hilo challenges

One of the programs I created modifies the temperature during one phase of a Hilo challenge. How will my program affect my thermostat’s behaviour?

Let’s first recall the three phases of a challenge.

  • Optional preheating phase from 4 a.m. to 6 a.m. for the morning challenge and from 3 p.m. to 5 p.m. for the evening challenge.
  • Reduction phase from 6 a.m. to 10 a.m. for the morning challenge and from 5 p.m. to 9 p.m. for the evening challenge.
  • Recovery phase from 10 a.m. to 11 a.m. for the morning challenge and from 9 p.m. to 10 p.m. for the evening challenge.

Here are the set temperature variations during the three phases:

Tableau 3 phases AN.png

Comments

 

How to determine the set temperature at the end of a challenge:

  • If no program was scheduled, your thermostat's set temperature will be the same as before this challenge.
  • If a temperature change was scheduled at the time of a challenge, at the end of the challenge the set temperature will be that of the last program performed during the challenge.

 

Note: The gradual setpoint variation of each phase is divided into stages. The following examples will help you better understand these stages as well as the impact of your programs on a challenge.

 

Example 1

  • Evening challenge
  • Intrepid without preheating
  • Without programs during the challenge
  • Beginning setpoint at 20°C

Progression of the challenge

This table allows you to see in detail the length of each stage. Note that the temperature varies by 0.5°C at a time during the reduction phase, and by 1°C during the recovery phase.

Tableau exemple 1 AN.png

Example 2:

  • Morning challenge
  • Intrepid with preheating
  • With programs during the challenge
  • Beginning setpoint at 17°C 

Planned programs

  • Setpoint programmed for midnight: 17°C
  • Setpoint programmed for 6:30 a.m.: 20°C
  • Setpoint programmed for 8:15 a.m.: 19°C

Note: When one of your programs starts at the same time as a new stage change during a challenge, the set temperature of your program will happen just before the next stage change. Thus, the set temperature of your program will be adjusted according to the temperature variation planned for the stage in which the program is executed.

Progression of the challenge

This table allows you to see in detail the length of each stage and the temperature variations. Note that starting from the time a program is scheduled to start, the set temperature (which will vary gradually, depending on the phase of the challenge) is the one required by the program.

Tableau exemple 2 AN.png

*Temperature programmed for 6:30 a.m.: 20°C

 The program’s temperature (20°C) is executed just before the end of stage 4. Since the temperature variation at this stage is +1° C, the set temperature will be 21°C (20°C + 1.0°C = 21°C). 

**Temperature programmed for 8:15 a.m.: 19°C

The program’s set temperature (19° C) is executed during stage 8. Since the temperature variation at this stage is -2°C, the set temperature will be 17°C (19°C - 2.0°C = 17°C).

 

Example 3:

  • Morning challenge
  • Moderate without preheating
  • No programs during the challenge
  • Setpoint temperature at the start of the challenge: 22° C

Progression of the challenge

This table allows you to see in detail the length of each stage. Note that the temperature varies by 0.5°C at a time during the reduction phase, and by 1°C during the recovery phase.

Tableau exemple 3 AN.png

Example 4:  

  • Evening challenge
  • Moderate with preheating
  • With programs during the challenge
  • Setpoint temperature at the start of the challenge: 18°C

The programs are planned as follows:

  • Setpoint programmed for 10 a.m.: 18°C
  • Setpoint programmed for 4 p.m.: 21°C
  • Setpoint programmed for 7:30 p.m.: 23°C

Progression of the challenge

This table allows you to see in detail the length of each stage and the variations in temperature. Note that starting from the scheduled time of the start of the program, the set temperature (which will vary gradually, depending on the phase of the challenge) is the one required by the program.

Tableau exemple 4 AN.png

*Temperature programmed for 4 p.m.: 21°C

The set temperature of the program (21°C) executes during phase 3. Since the temperature variation at this stage is +1.5°C, the set temperature will be 22.5°C (21° C + 1.5 °C = 22.5 °C). 

**The temperature programmed for 7:30 p.m.: 23°C

The set temperature of the program (23°C) executes during phase 8. Since the temperature variation at this stage is -1.5°C, the set temperature will be 21.5°C (23° C - 1.5°C = 21.5°C).