M-thermal technical manual – part 3
we provided for 2 columns to register the date and value of altered field settings at variance with
the default value.
3.1 Setting Procedure
1 Press the button to enter FIELD SET MODE .
The SETTING icon will be displayed. The current selected field setting code is indicated “8-8-88”,
with the set value displayed as the last 2-digit number.
2 Press the button to select the appropriate field setting first code.
3 Press the button to select the appropriate field setting second code.
4 Press the and button to change the set value of the select field setting.
5 Save the new value by pressing the button.
6 Repeat step 2 through 4 to change other field settings as required.
7 When finished, press the button for the second time to exit.
Note: Please read the manual carefully to understand how to operate wire controller
3.2 Detailed description
a) Basic option
This part of field setting determines the basic option of the heat pump system, so that the control system can
select the appropriate control mode.
“0-0” Under floor heating terminal: defines whether the system installations with under floor
heating “1” or not “0”.
“0-1” Fan coil: defines whether the system installations with fan coil “1” or not “0”.
“0-2” Sanitary hot water tank: Defines whether the system installations with sanitary hot water
tank “1” or not “0”.
“0-3” Electric heater for sanitary hot water tank: Defines whether an electric heater was
assembled in the sanitary hot water tank “1” or not “0”.
“0-4” Auxiliary heating source: Defines whether there is a boiler as an auxiliary heating source
for the system “1” or not “0”.
“0-5” Solar kit: Defines whether there is a solar kit to heating the sanitary hot water tank “1” or
not “0”.
“0-6” auxiliary heater: Defines whether there are electric heaters assembled in the indoor unit
“1” or not “0”.
“0-7” Room thermostat: Defines whether there is a room thermostat connected with the indoor
unit “1” or not “0”.
“0-8” Fan coil function: Function of the fan coil,"0"for cooling only,"1" for heating and cooling.
b) Priority
This part defines the priority of space heating, space cooling and sanitary hot water tank heating.
“1-0” Space heating and sanitary heating priority: Defines the priority of space heating and
sanitary heating, “0” for sanitary heating priority, “1” for space heating priority, and “2” means
space heating and sanitary heating have the same priority.
“1-1” Space cooling and sanitary heating priority: defines the priority of space cooling and sanitary
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