LP-293 Rev. 9.24.15
53
C. Boiler Test Mode
This function is intended to simplify gas adjustment. The
following tables include recommended combustion settings
by fuel type and boiler fan speeds. Automatic modulation does
not take place while the controller is in Test Mode. However,
the boilers will modulate down if the program set point is
reached while running in Test Mode. It is recommended to
enter Test Mode with the largest load possible to create such
a heat demand that Test Mode will not be interrupted. To
enter Test Mode press ^ and ENTER simultaneously.
NOTE: The boiler will automatically exit Test Mode after 20
minutes of operation.
To leave Test Mode press ^ and v simultaneously.
SERVICE RUN 3400 RPM
PUMP ON 4:49P
Combustion Settings on All Models
Fan Speed
Natural Gas (NG) Propane (LP)
Low Ignition High Low Ignition High
Carbon
Monoxide
(CO) PPM
5-50 60-100
<150 5-50 60-100 <150
Carbon
Dioxide
(CO
2
) %
8-10 8 1/2-10 1/2 9-10 1/2 9 1/2-11
Table 25 - Combustion Settings - All Models
Fan Speeds
BTU Ignition Min Max
80,000 3000
1700
4600
110,000
3800
4950
150,000 5200
220,000
3000
1450
4900
299,000
301,000
5000
399,000 1600 6650
Table 26 - Fan Speeds
Part 11 - Troubleshooting
A. Boiler Error and Fault Codes
If any of the sensors detect an abnormal condition, or an
internal component fails during the operation of the boiler,
the display may show an error message and error code. This
message and code may be the result of a temporary condition,
in which case the display will revert to its normal readout
when the condition is corrected, or it may be a condition that
the controller has evaluated as not safe to restart the boiler.
In this case, the boiler control will be locked out, the red
FAULT light will be lit, and the message “LOCKOUT” will be
displayed on the readout in the lower line.
The boiler will not start until a qualied technician has
repaired the boiler and pressed the RESET button for more
than 1 second. If there is an error message displayed on the
readout, and the message “LOCKOUT” is not displayed and
the FAULT light is not lit, then the message is the result of
a temporary condition and will disappear when the problem
corrects itself.
IMPORTANT NOTE: If you see error messages on your display
B. Boiler Error
The controller will display an error code and message when
an error condition occurs. These error codes, descriptions, and
recommended corrective actions are described in Section D.
C. Boiler Fault
1. The controller will illuminate the red “FAULT” indication light
and display a fault code and message when a fault condition
occurs. The alarm output will also activate. Most fault conditions
cause the CH pump to run in an attempt to cool the boiler.
2. Note the displayed fault code and refer to Section D for an
explanation of the message along with several suggestions for
corrective actions.
3. Press RESET to clear the fault and resume operation. Be sure
to observe the operation of the unit for a period of time to assure
correct operation and no reoccurrence of fault message.
DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN
SUBMERGED IN WATER. Immediately call a qualied service
technician. The appliance MUST BE replaced if it has been
submerged. Attempting to operate an appliance that has been
submerged could create numerous harmful conditions, such as
a potential gas leakage causing a re and/or explosion, or the
release of mold, bacteria, or other harmful particulates into the
air. Operating a previously submerged appliance could result in
property damage, severe personal injury, or death.
NOTE: Appliance damage due to ood or submersion is
considered an Act of God, and IS NOT covered under product
warranty.
When servicing or replacing components that are in direct
contact with boiler water, be certain that:
• There is no pressure in the boiler. (Pull the release on the
relief valve. Do not depend on the pressure gauge reading.
• The boiler water is not hot.
• The electrical power is disconnected.
• The gas is shut o.
Failure to make these checks could result in substantial property
damage, serious personal injury, or death.
Label all wires prior to disconnecting them when servicing
the boiler. Wiring errors can cause improper and dangerous
operation. Failure to follow these instructions may result in
property damage or personal injury.
If overheating occurs or the gas supply fails to shut o, do not
turn o electrical power to the circulating pump. This may
aggravate the problem and increase the likelihood of boiler
damage. Instead, shut o the gas supply to the boiler at the gas
service valve. Failure to do so may result in property damage,
personal injury, or death.
readout, call a technician immediately, since the message may
indicate a more serious problem will occur soon.
NOTE: If system return temperatures are maintained below the
dew point, condensation will form on the inside of the boiler
cabinet and cause some internal sheet metal components to
rust.
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