Owner manual

Page 51
BRUTE ELITE
label and turn on the gas and electrical power to the
appliance.
4. The Brute Elite unit will begin the start sequence.
The blower and pump will energize for the pre-purge
period, then the ignition sequence will start. After
all safety devices have been veried, the gas valve
will open. If ignition doesn’t occur, turn off the Brute
Elite, and check that there is proper gas supply. Wait 5
minutes before restarting.
5. Turn the Brute Elite on.
6. After placing the appliance in operation, the Burner
Safety Shutoff Device must be tested:
• Close the gas shutoff valve with the burner operating.
• The ame will go out and the blower will
continue to run for the post purge cycle. One
or three additional attempts to light will follow.
Each cycle will include pre-purge, ignitor on,
valve/ame on, and post purge. Ignition will not
occur because the gas is off. The ignition control
will lockout.
• Open the gas shutoff valve. Reset the boiler
control by pressing the Reset button on the
control or on the display. Restart the appliance.
The ignition sequence will start again and the
burner will start. The appliance will return to its
previous mode of operation.
DANGER
If you detect any odor of gas, or if the gas burner
does not appear to be functioning in a normal
manner, CLOSE THE MAIN SHUTOFF VALVE.
Do not shut off the switch. Contact your heating
contractor, gas company, or factory representative.
9.3AdjustingCO
2
1. Measure the CO
2
/O
2
in the ue products at high re.
The Brute Elite can be forced to high re to allow for
easier setup. The controller has a feature that makes it
easy to go directly to the high re condition. The unit
will operate at high re for 5 minutes, then modulate
down automatically.
How to get there: From the “Home” screen,
press “I” to go to “Info/ Install.” Choose “Test,” then
go to “Forced Rate.” Select “Set High Fire,” then
select “Start Test.”
The CO
2
readings should be between the values shown
in Table 15 R or Table 15 C. If the CO
2
is not within
the range shown, adjustments may be made. To adjust
the high re CO
2
, locate the high re adjuster screw
according to the appropriate gure. Slowly make
adjustments in 1/16 of a revolution increments until the
CO
2
is within the range identied.
2. Measure the CO
2
/O
2
in the ue products at low re. Brute
Elite can be forced to low re to allow for easier setup.
3. Repeat steps 1 and 2 to conrm that the CO
2
ranges are
within the required ranges. Adjust if necessary.
4. Conrm that the differential pressure is still within the
appropriate range.
5. If any of the measurements cannot be adjusted to the
specied ranges or the CO levels are above 150ppm
when adjusted, please consult the factory for further
information.
WARNING
Improper adjustment may lead to poor combustion
quality, increasing the amount of carbon monoxide
produced. Excessive carbon monoxide levels may
lead to personal injury or death.
Table15C(Commercial,sizes399-850Mbtu)
CO
2
RangeandManifoldPressure
GAS TYPE HIGH FIRE, CO
2
LOW FIRE, CO
2
DIFFRNTL PRESSURE
(incheswc)
Natural 8.8 to 9.8% 0.5% lower than
3.6” to 3.9”
Propane 9.8 to 10.2%
high re setting
Table15R(Residential,sizes80-285Mbtu)
CO
2
RangeandDifferentialPressure
How to get there: From the “Home” screen, press
“I” to go to “Info/ Install.” Choose “Test,” then go
to “Forced Rate.” Select “Set High Fire,” then select
“Start Test.”
The CO
2
readings should be between the values shown
in Tables 15 R or Table 15 C. If the CO
2
is not within
the range shown, adjustments may be made. To adjust
the low re CO
2
, locate the low re adjuster screw
according to the appropriate gure. Slowly make
adjustments in 1/16 of a revolution increments until the
CO
2
is within the range identied.
GAS TYPE HIGH FIRE, CO
2
LOW FIRE, CO
2
MANIFOLD
PRESSURE
Natural 8.8 to 9.0% 0.5% lower than -.005” to
Propane 9.8 to 10.0%
high re setting -.015” wc