Hitachi RWM-(H)FSN3E, Руководство по обслуживанию

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7 Optional functions
SMGB0070 rev. 1 - 08/2011
202
7.1 Indoor unit
Yutaki S unit has different optional functions designed to give the user better control over the facilities that the user can
apply.
7.1.1 Floor screed drying function (circuits 1 & 2)
New air to water heat pump has a new special optional function used exclusively for the process of drying of newly applied
screed on floor heating system. This process is based on EN1264 part 4.
When the user activates the floor screed drying function, the water set point follows a predetermined schedule:
0 1 2 3 4 5 6 7 8 9 10
25
30
35
40
11
Water outlet
temperature
(ºC)
Days
1 Water set-point is kept constant at 25ºC (*) for
3 days.
2 Water set-point is set to the Heating maxi-
mum supply temperature (but always limited
to ≤ 55ºC) for 4 days.
3 After 7 days started the floor screed drying,
the water outlet temperature will return at the
assigned water temperature setting, depen-
ding on the water rule selected.
Upon completion of the above sequence, the controller returns to normal operation.
All the other heating modes are overdriven except hot sanitary water. The room thermostat is disabled during this function.
CODE
Description Default Value
8-000 Screed drying function c1 (OFF, ON) OFF
8-100 Screed drying function c2 (OFF; ON) OFF
N O T E
• Tariff input has no effect
• Screed drying function process is showed in LCD
• (*) Unit heating working range has priority instead of 25ºC