Heatmiser PRT-E1, User Manual

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22 21 Slimline
Series Model
: PRT-E
Adjusting the Optional Settings
To adjust the optional settings, follow these steps.
• Press and hold the Power button to turn the thermostat OFF ..............................
• Press and hold the Clock key until the display appears as shown below ..........
• Use the Clock key to cycle through the features ........................................................
• Use the Up/Down keys to change the setting ....................................................
• Press A to confirm settings .................................................................................................
• Press the Power button once again to turn the thermostat back ON .................
Setting Value
Feature Number
Feature 08 – Sensor Selection: On this thermostat, you can select which sensor
should be used. You can select between air temperature only, floor temperature,
or both. When you enable both sensors, the floor sensor is used as a floor limiting
sensor and is designed to prevent the floor from overheating.
Note: Built in air sensor only MUST NOT be used to control electric underfloor heating.
Floor sensor only or built in air & floor sensor together must be used.
Feature 09 – Floor Temp Limit:
This function is available when feature 08 is set to
03 or 04. You can set a floor limiting temperature between 20-45°C
(28°C is the default).
Feature 10 – Optimum Start: Optimum start will delay the start up of the heating
system to the latest possible moment to avoid unnecessary heating and ensure
the building is warm at the programmed time. The thermostat uses the rate of
change information to calculate how long the heating needs to raise the building
temperature 1°C (with a rate of change of 20, the thermostat has calculated the
heating needs 20 minutes to raise the building temperature 1°C) and starts the
heating accordingly.
On this thermostat, optimum start works on the Wake and Return comfort levels.
Feature 11 - Rate of Change: Number of minutes to raise the temperature by 1°C .
Feature 12 - Weekday/Weekend or 7 Day Programming: The thermostat offers
two programming methods. Weekday/ Weekend allows you to program 4
comfort levels for the weekday and 4 different comfort levels for the weekend.
In 7 Day program mode, each day has 4 comfort levels that can be programmed
independently.