---
title: PRG (heating program)
description: "![](https://faqdoc.info/wp-content/uploads/2026/01/Matrix_55__icon_Elektro-Wasser.png) The pre-configured heating program can be changed individually in the PRG menu. Possible parameters: **WEE** the entire week **WDA** weekdays **WEN** the weekend days **DAY** each day separately There are 6 switching points available per day. **NOTE** If the…"
url: "https://faqdoc.info/en/systemauswahl/alpha-direct-en/alpha-direct-thermostat-55-matrix/prg/"
updated: "2026-09-30"
category: Alpha direct thermostat 55 Matrix
---

# PRG (heating program)

![](https://faqdoc.info/wp-content/uploads/2026/01/Matrix_55__icon_Elektro-Wasser.png)

The pre-configured heating program can be changed individually in the PRG menu.

Possible parameters:

**WEE**
the entire week

**WDA**
weekdays

**WEN**
the weekend days

**DAY**
each day separately

There are 6 switching points available per day.

**NOTE**
If the thermostat is in cooling mode (due to an automatic CO signal or a manual switchover in the **WMO**), menu item), the **PRG** menu item is not shown on the display and is not available for parameterization.