Normal Operation - Ideal Heating i305 Installation & Servicing

DISPLAY FUNCTIONS - CONT'D

2.12.2 NORMAL OPERATION

In normal operation with DHW and CH enabled and Preheat disabled the display will show:
With a DHW demand the display will show the tap symbol and the DHW delivery temperature:
With a CH demand the display will show the radiator symbol and the CH delivery temperature:
If Preheat is enabled the HIU will open the DHW valve
to Preheat the DHW plate. While the valve is open the
display will show the tap symbol and alternate between
showing the plate temperature and the letters 'PH'.
If the HIU received a frost protection demand the display
will alternate between the CH temperature and the letters
'FP'.
24
SECTION 2 - INSTALLATION
HOT WATER
PREHEAT
ON
HOT WATER
PREHEAT
OFF
43
ºC
Alternates
10
ºC
Alternates
00
HOT WATER
PREHEAT
OFF
43
ºC
HOT WATER
PREHEAT
OFF
43
ºC
HOT WATER
PREHEAT
OFF
ph
ºC
HOT WATER
PREHEAT
ON
fp
ºC
HOT WATER
PREHEAT
OFF
Installation and Servicing