BLUEHELIX TECH RRT 24 C
7
EN
cod. 3541P250 - Rev. 01 - 07/2018
DHW temperature adjustment
Use the DHW buttons (detail 1 and 2 - fig. 1) to adjust
the temperature from a min. of 40°C to a max. of 55°C.
B
If a small amount of water is drawn and/or
with an increased cold water inlet temper-
ature, then the DHW outlet temperature
may vary from the actual set-point tem-
perature.
fig. 13
Room temperature adjustment (with optional room thermostat)
Using a room thermostat, or programmable room thermostat set the temperature required in the rooms. ( The
use of a room thermostat / programmable thermostat is mandatory as per the Building regulations part L).
Room temperature & time adjustment (with optional room thermostat)
Using the remote timer control, set the required temperature in the rooms. The boiler will adjust the system water according
to the required room temperature. For operation with remote timer control, please refer to the relevant instruction manual.
ECO/COMFORT selection
The unit has a function that ensures a quick domestic hot water delivery rate to ensure maximum comfort for the user.
When the device is activated (
COMFORT
mode), the water contained within the boiler is kept warm, therefore ensuring
a faster response for hot water upon opening a domestic hot tap or shower.
The device can be deactivated by the user (
ECO
mode) by pressing the
winter/summer/off
button (detail 7 - fig. 1) for
5 seconds. In
ECO
mode the display activates the
ECO
symbol (detail 12 - fig. 1). To activate the
COMFORT
mode,
press the
winter/summer/off
button again (detail 7 - fig. 1) for 5 seconds.
Outside Temperature Compensation (OTC)
When the optional external sensor is installed the boiler adjustment system works with "OTC". In this mode, the heating
system temperature is regulated according to weather conditions, to ensure a high comfort and energy efficiency
throughout the year. In particular, as the outside temperature increases the system flow temperature decreases accord-
ing to a specific "compensation curve".
With the “OTC“ adjustment, the temperature set with the heating buttons (detail 3 - fig. 1) becomes the maximum system
flow temperature. It is advisable to set a maximum value to allow system adjustment throughout its useful operating range.
The boiler must be adjusted at the time of installation by fully trained personnel. However, the user can make any further
adjustments necessary to optimise comfort levels.
Compensation curve and curve offset
Press the reset
button
(detail 6 - fig. 1) for 5 seconds to access the “OTC” menu; the display shows “CU” flashing.
Use the DHW buttons (detail 1 - fig. 1) to adjust the desired curve from 1 to 10 according to the characteristic (fig. 14).
By setting the curve to 0, the “OTC” adjustment is disabled.
Press the heating buttons (detail 3 - fig. 1) to access parallel curve offset; the display shows “OF” flashing. Use the DHW
buttons (detail 1 - fig. 1) to adjust parallel curve offset according to the characteristic (fig. 15).
Press the heating buttons (detail 3 - fig. 1) to access the menu “shutdown for external temperature”; the display shows
"SH"
flashing. Use the DHW buttons (detail 1 - fig. 1) to adjust the shutdown external temperature. If set to 0 the function
is disabled; the range varies from 1 to 40°C. The boiler will ignite when the external probe temperature is 2°C lower than
the set temperature.
