If you hold for 5 seconds, the room unit will go into manual mode. In this mode there is only one temperature. Press either or to see this temperature change. fileslib. In heating mode a low limit thermostat prevents the fan from operating if the heating system water temperature is below. 110°F. • WHISPA III® recessed wall Manual for Myson MPRT Thermostat. View and download the pdf, find answers to frequently asked questions and read feedback from users.
In heating mode a low limit thermostat prevents the fan from operating if the heating system water temperature is below. 110°F. • In summer mode the fan can be
These features are explained further on pages 20 and 21 of this manual. Programmable room thermostats need a free flow of air to sense the temperature,.