M thermal Mono 
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Part 3 - Installation and Field Settings 
 
T1SetC1 sets the temperature 1 of automatic setting curve for cooling mode. 
 
T1SetC2 sets the temperature 2 of automatic setting curve for cooling mode. 
 
T4C1 sets the ambient temperature 1 of automatic setting curve for cooling mode. 
 
T4C2 sets the ambient temperature 2 of automatic setting curve for cooling mode. 
 
ZONE1 C-EMISSION sets the emission type of zone1 for cooling mode. 
 
ZONE2 C-EMISSION sets the emission type of zone2 for cooling mode. 
 
7.6  HEAT MODE SETTING Menu 
MENU > FOR SERVICEMAN > HEAT MODE SETTING 
 
Figure 3-7.14: HEAT MODE SETTING menu 
 
In HEAT MODE SETTING the following parameters should be set. 
 
HEAT MODE enables or disables heating mode.   
 
t_T4_FRESH_H sets the refresh time of heating model climate temperature curve. 
 
T4HMAX sets the ambient temperature above which the heat pump will not 
operate  in  heating mode. The highest value that  T4HMAX can take is 35°C, 
which is the heating mode upper ambient temperature operating limit of the 
heat pump. Refer to Figure 3-7.15. 
 
T4HMIN sets the ambient temperature below which the heat pump will not operate in heating mode. The lowest value 
that T4CMIN can take is -25°C, which is the heating mode lower ambient temperature operating limit of the heat pump. 
Refer to Figure 3-7.15. 
 
dT1SH sets the temperature difference between the heat pump leaving water 
temperature  (T1)  and  the  heat  pump  leaving  water  set  temperature  (T1S) 
above  which  the  heat  pump  provides  heated  water  to  the  space  heating 
terminals.   
 
 
dTSH sets the temperature difference between the actual room temperature (Ta) and set room temperature (TS)  above 
16°C
-15°C
5°C
2.0HRS
YES
3 HEAT MODE SETTING
3.1 HEAT MODE
3.2 t_T4_FRESH_H
3.3 T4HMAX
3.4 T4HMIN
3.5 dT1SH
ADJUST
1/3
35°C
28°C
-5°C
5MIN
2°C
3 HEAT MODE SETTING
3.6 dTSH
3.7 t_INTERVAL_H
3.8 T1SetH1
3.9 T1SetH2
3.10 T4H1
ADJUST
2/3
FLH
2MIN
RAD.
7°C
3 HEAT MODE SETTING
3.11 T4H2
3.12 ZONE1 H-EMISSION
3.13 ZONE2 H-EMISSION
3.14 t_DELAY_PUMP
ADJUST
3/3
Figure 3-7.15: T4HMAX, T4HMIN 
Abreviations: 
T4: Outdoor ambient temperature 
Note: 
Only when ROOM TEMP is enabled will this function 
be available