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S7999B SYSTEM DISPLAY
Step
12.k.
Press Open and Close for Fuel and Air and the FGR (if present)
to move the cursor to the Maximum Modulation point for the
burner.
12.l.
Press Max button.
12.m. Press Prev. Point/Next Point until the cursor reaches the next
lower point on the profile. Alternatively the user may add
intermediate points as the effective firing rate is lowered. Jump
back to 12.h. if the temporary intermediate points were deleted in
12.k.
12.n.
Repeat step 12.m. until you have moved along the curve from top
to bottom.
13.a.
If you wish to save the profile you have just created, press Quit
button and then the Save button.
13.b.
When you are through with the profile, press Quit and then the
Finish button.
Initiate Commissioning
Begin commissioning/configuring the ControLinks™ Control
device by clicking on the Commissioning button located on the
Home page. The Warning screen (Fig. 23) will appear.
You can perform the following actions from this screen:
1. Enter your password to access the commissioning
function of the S7999B.
2. Change the password.
3. Monitor.
65-0283—2
Table 4. Commissioning Overview. (Continued)
Action
24
For gas systems of which the gas pressure has not
been adjusted to match the burner-rated BTU
capability, the use should use the maximum
Modulation replacement technique to rough in a curve
until maximal airflow is obtained. The gas flow may
then be adjusted to set the maximum firing rate. The
user may then delete all points and immediately
re-enter another maximum modulation point. This
may save the user some time by not having to
successively delete invalid intermediate points due to
the gas pressure change.
An "M" will be displayed on the profile and a line will
connect it to the previous intermediate points. The
R7999 requires re-verification of any verified curve
segments after setting the maximum modulation
point.
The line segment turns color, red to green, to indicate
the curve has been walked (verified). FGR line
segment turns color from brown to cyan.
NOTE: The S7999B requires you to enter at least
three points (inclusive of the min and max
modulation points) in order to use the "Prev
Point" and "Next Point" buttons.
The profile is now complete and operational. Status
should display "Profile Complete. Ready to Run."
The R7999 requires reverification of any line segment
after the maximum modulation point has been altered.
The user must insure that the purge point is within the
minimum and maximum modulation points before
finishing the profile. The purge point can be moved
while the burner is firing by simply using the Prev
Point, Next Point buttons and pressing the PURGE
button at the desired level or at the purge point
definition period during the next start up sequence.
The Monitor screen appears. You have successfully
commissioned the R7999.
After reading the warning and accepting the responsibility for
configuring a safe and efficient fuel/air profile curve, click on
the Commission button to exit the Warning screen and display
the Commission Password screen.
Commission Warning Screen
The Commission Warning screen is used to:
• Protect the system from unauthorized users.
• Connect the R7999 to the S7999B for commissioning.
Refer to the R7999A,B ControLinks™ controller
specification sheet (Form No. 65-0238).
Notes
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