57
Part 1 - General Safety Information
Part 9 - Controls
Hotter water increases the risk of
scald injury. Scalding may occur
within five (5) seconds at a setting
of 140°F. Water temperature over
125°F can instantly cause severe
burns or death from scalds. Children,
disabled, and elderly persons are at
the highest risk of being scalded.
See instruction manual before setting temperature at
the appliance. Feel water before bathing or showering.
B. Ignition Procedure
Figure 58 - Powering On the Boiler
Press the ON/OFF button
on the control panel to power on the
boiler.
The display shows the current operating mode.
Operating Mode
Description
Display
Stand-by
CH request
supply temperature displayed
DHW request
DHW setpoint displayed
Purging Cycle
Central Heating Post Circulation
DHW Circuit Post Circulation
C. Central Heating (CH) Temperature Adjustment
It is possible to adjust the central heating (CH) temperature setpoint
from the home screen by pressing the CH +/- buttons. See Figure 59. The
allowable operating range is limited by the Max and Min Temperature
Settings (e.g., Parameters 4.2.5 and 4.2.6) which are adjustable via the
Technical Menu. See P. Technical Menu - Access and Navigation.
NOTE:
When set to AUTO - Automatic Temperature Control (e.g.,
Outdoor Reset), the CH Temperature Setpoint is calculated in
accordance with the type of automatic temperature control selected.
The resulting setpoint can be offset/shifted up or down by pressing
the CH
+/-
buttons from the home screen. See K. Parallel Shift of Reset
Curve.
D. Domestic Hot Water (DHW) Temperature Adjustment
Not Applicable to Non-Combi Models using an Aquastat
It is possible to adjust the domestic hot water (DHW) temperature
setpoint from the home screen by pressing the DHW +/- buttons. See
Figure 60.
The DHW temperature range is 97 - 140
o
F. The previously set value will
flash on the display.
Figure 59 - Central Heating (CH) Temperature Adjustment
Figure 60 - Domestic Hot Water (DHW) Temperature Adjustment
DANGER
Содержание TRX150
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