Set Temperature Range; Air To Water (Pwfy) Groups - Mitsubishi Electric AT-50B Instruction Book

Set temperature range

Air conditioning unit group
(* When Fan mode is selected, the temperature setting cannot be made.)
Operation mode
Cool/Dry
Heat
Auto (single set point)
Auto (dual set points)
Fan
*1 The settable temperature ranges vary, depending on the indoor unit model.
*2 The set temperature for Auto mode (either single or dual set point(s)) will appear depending on the indoor unit model.
*3 The same values are used for the set temperature for Cool/Dry mode and the cooling set temperature for Auto mode
(dual set points). Likewise, the same values are used for the set temperature for Heat mode and the heating set
temperature for Auto mode (dual set points).
*4 The cooling and heating set temperatures can be set under the following conditions.
• The cooling set temperature is greater than the heating set temperature.
• The difference between the cooling and heating set temperatures is equal or greater than the minimum temperature
difference that varies with the indoor unit model.

Air To Water (PWFY) groups

* Available set temperature range varies depending on the mode or model.
The temperature can be set within the following range.
** The temperature is controlled automatically in the Heating ECO mode. The user cannot change the temperature
settings.
[Booster unit]
Heating
Heating ECO** : 30°C–45°C/87°F–113°F
Hot Water
Anti-freeze
Cooling
22
19ºC–35ºC/67ºF–95ºF
4.5ºC–28ºC/40ºF–83ºF
19ºC–28ºC/67ºF–83ºF
Cool: Same as the set temperature range for Cool mode
Heat: Same as the set temperature range for Heat mode
Not settable
: 30°C–50°C/87°F–122°F
: 30°C–70°C/87°F–158°F
: 10°C–45°C/50°F–113°F
: Invalid
Set temperature range
*1
*1
*1*2
[Water HEX unit]
Heating
Heating ECO** : 30°C–45°C/87°F–113°F
Hot Water
Anti-freeze
Cooling
*2*3*4
: 30°C–45°C/87°F–113°F
: Invalid
: 10°C–45°C/50°F–113°F
: 10°C–30°C/50°F–87°F