10
4.11 GENERAL SAFETY
9
Water temperatures over 125°F (52°C) can cause instant
severe burns or death from scalds.
When supplying general purpose hot water, the recommended
initial setting for the temperature control is 120°F (49°C).
Safety and energy conservation are factors to be considered
when setting the water temperature on the thermostat. The most
energy-efficient operation will result when the temperature
setting is the lowest that satisfies the needs of the application.
Children, disabled and elderly are at highest risk of being
scalded.
− Feel water before bathing or showering.
− Temperature limiting valves are available.
Maximum water temperatures occur just after the boiler’s
burner has shut off. To determine the water temperature being
delivered, turn on a hot water faucet and place a thermometer
in the hot water stream and read the thermometer.
4.12 SCALDING TIME/TEMPERATURE RELATIONSHIPS
The following chart details the relationship of water temperature
and time with regard to scald injury and may be used as a
guide in determining the safest water temperature for your
applications.
Water Temperature
Time to Produce Serious Burn
120°F (49°C)
More than 5 minutes
125°F (52°C)
1-1/2 to 2 minutes
130°F (54°C)
About 30 seconds
135°F (57°C)
About 10 seconds
140°F (60°C)
Less than 5 seconds
145°F (63°C)
Less than 3 seconds
150°F (66°C)
About 1-1/2 seconds
155°F (68°C)
About 1 second
Table courtesy of The Shriners Burn Institute.
The temperature of the water in the boiler can be regulated
by using the
R
boiler front control. To comply with safety
regulations, the control is set to a lower temperature when
shipped from the factory.
CAUTION:
Hotter water increases the risk of scalding! There is a
hot water scald potential if the thermostat is set too high.
4.13 ACCESS TO THE INFO MENU
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NOTICE: Make sure you are in the “Operation mode”,
backlight ON (see section 10.6).
Using the boiler control panel it is possible to access the INFO
menu by pressing the “MENU/RESET” button for less than 5
seconds. The INFO menu allows the user to view some of the
boilers sensor readings and can be very helpful when diagnosing
issues with the unit. (see INFO list in the next column; indexed
by a lowercase alphabetical letter.).
Note:
Pressing the “MENU/RESET” button for more than 5 seconds
will access the Parameter menu.
RESET
MENU
136°F
OK
MODE
Once the button is pressed, the first value of the INFO menu
appears: e. g. “a130.6°F”.
It scrolls from right to left because of the length of the string (up
to 5 characters) in the following sequence: value + unit
of measure.
RESET
MENU
a130.
OK
MODE
To move from one letter to another press the “MODE/OK” button.
The next value will appear: e. g. “b135.1°F” (sliding from right to
left).
RESET
MENU
b135.
OK
MODE
INFO list
INFORMATION
STRING
CH sensor
“a” + “value (e.g. xx.x)” + “°F”
Return sensor
“b” + “value (e.g. xx.x)” + “°F”
DHW sensor
“c” + “value (e.g. xx.x)” + “°F”
Flue sensor
“d” + “value (e.g. xx.x)” + “°F”
Outdoor temperature
sensor
“e” + “value (e.g. xx.x)” + “°F”
Fan speed
“f” + “value (e.g. xxxx)” + “rpm”
Flue hour counter
“g” + “value” + “h”
CH Water Pressure
“h” + “value” + “psi”
Domestic Flow Rate
“i” + “value” + “GPM”
Boiler firmware version
"j" + “version”
4.14 LIGHTS AND FAULTS / RESET PROCEDURE
If any faults should occur a brief alphanumeric description of
the fault will appear on the display
See “Boiler fault list” below for a description of the errors.
Pressing the “MENU/RESET” button two times: the first time to
request a reset procedure, the second to confirm it.
If the boiler cannot be restored to it’s normal operation contact
a qualified service agency.
WARNING:
Repeatedly resetting an error code without contacting
a qualified service technician to resolve the problem may result
in substantial property damage, severe personal injury or death.
