Tuning Menu; Combustion Cal Menu - Watts Aerco BENCHMARK 750 User Manual

Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL

3.7 TUNING MENU

The Tuning menu items in Table 3-5 are Factory set for each individual unit. Do not change
these menu entries unless specifically requested to do so by factory-trained personnel.
Menu Item Display
1 Prop Band
2 Integral Gain
3 Derivative Time
4 Warmup Prop Band
5 Warmup Int Gain
6 Warmup PID timer
7 Reset Defaults?

3.8 COMBUSTION CAL MENU

The Combustion Cal (Calibration) menu is protected by the level 2 password (6817) which must
be entered to view or change the menu items shown in Table 3-6. These menu items are used
to vary the speed of the unit's blower motor based on air temperature and air density at
prescribed Air/Fuel Valve positions (% open). This is accomplished by providing a DC drive
voltage to the motor which then adjusts the rotational speed of the blower to maximize
combustion efficiency and ensure the unit conforms to the Nitrogen Oxide (NOx) and Carbon
Monoxide (CO) emissions specified in Chapter 4. The valve positions where the default drive
voltages are set are listed in Table 3-6.
Menu Item Display
1 CAL Voltage 16%
2 CAL Voltage 30%
3 CAL Voltage 45%
4 CAL Voltage 60%
5 CAL Voltage 80%
6 CAL Voltage 100%
7 SET Valve Position
8 Blower Output
9 Set Stdby Volt
10 Oxygen Level
11 Spark Monitor
12 Min Spark Amps
13 Max Spark Amps
OMM-0119_0A
GF-130-I
CHAPTER 3 – OPERATION
Table 3-5: Tuning Menu
Available Choices or Limits
Minimum
1°F (0.55°C)
0.00
0.0 min
1°F 0.55°C)
0.00
0 sec.
Yes, No, Are You Sure?
Table 3-6: Combustion Cal Menu
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
Maximum
120°F (66°C)
2.00
2.00 min
120°F (66°C)
2.00
240 sec.
Acceptable Range
Minimum Maximum
0.25 10.00
0 100
Displays current value
0 10.0
Displays current value
Enable or Disable
0 2.5
0 2.5
Default
70°F (38.5°C)
1.00
0.0min
95 °F (52°C)
0.50
20 sec.
No
Default
1.00
2.30
2.50
2.90
3.80
7.90
variable
2.00
Disable
0.1
0.4
Page 45 of 170
11/03/2016