EDM SYSHP MINI DCI

12.2 PREHEATING FOR FLOOR
Preheat for floor is
running for 25 minutes.
Water flow temperature is 20°C.
89
7.15.3 PREHEATING FOR FLOOR
MENU > FOR SERVICEMAN > SPECIAL FUNCTION > PREHEATING FOR FLOOR
During inial start-up and when water temperature is low, it is important that the
water is heated gradually. Or it may result in concrete oors cracking due to rapid
temperature change.
T1S sets the heat pump’s leaving water set temperature in preheang for oor mode.
Figure 3-7.48: Preheang for oor menu
dT1SH sets the temperature dierence between the heat pump’s leaving water set temperature (T1S) and the heat pump’s
leaving water temperature (T1) above which the heat pump provides heated water to the oor heang loops. When T1S – T1
≥ dT1SH the heat pump provides heated water to the oor heang loops.
t_fristFH sets the duraon of preheang for oor mode.
The operaon of the unit during preheang for oor mode is illustrated in Figure 3-7.49.
Abreviaons:
t_interval_H: Compressor re-start delay in space heang mode. (Refer to Part 3, 7.6 “HEAT
MODE SETTING Menu”).
Whilst the preheang for oor operaon is running, the number of minutes that it has been running for and the heat pump’s
leaving water temperature are displayed on the user interface. During the preheang for oor operaon all buons except OK
are inacvated. To exit the preheang for oor operaon, press OK and then select YES when prompted. Refer to Figure 3-7.50.
Figure 3-7.49: Preheang for oor
Compressor
Time
Punp
Figure 3-7.50: Preheang for oor screens
Before oor heang, if large a amount of water remains on the oor, the oor may be warped or even rupture during oor
heang operaon, in order to protect the oor, oor drying is necessary, during which the temperature of the oor should be
increased gradually.