BMK 750-3k Platinum Boiler OPERATION, SERVICE, and MAINTENANCE GUIDE
SECTION 2: OPERATION
OMM-0116_0A
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
23
of
178
GF-201
Ph.: 800-526-0288
03/15/2017
2.7 TUNING Menu
The
Tuning
menu items are Factory set for each individual unit. Do not change these menu
entries unless specifically requested to do so by factory-trained personnel.
A full description of each item appears in Appendix A-4.
Table 2-5: TUNING Menu
MENU ITEM DISPLAY
AVAILABLE CHOICES OR LIMITS
DEFAULT
Minimum
Maximum
1
Prop Band
1°F (0.55
°
C)
120°F (66
°
C)
70°F (38.5
°
C)
2
Integral Gain
0.00
2.00
1.00
3
Derivative Time
0.0 min
2.00 min
0.0min
4
Warmup Prop Band
1°F (0.55
°
C)
120°F (66
°
C)
95 °F (52
°
C)
5
Warmup Int Gain
0.00
2.00
0.50
6
Warmup PID timer
0 sec.
240 sec.
20 sec.
7
Reset Defaults?
Yes, No, Are You Sure?
No
2.8 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 2-6, 2-7 and 2-8. 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 (NO
x
) and Carbon
Monoxide (CO) emissions specified in the combustion calibration instructions in Section 4.4 of
the
Benchmark 750 – 3000 Installation and Startup Guide
, OMM-0115 (GF-200).
CAL Voltage values are factory adjusted for each unit prior to shipping, and so may differ from
the defaults shown in the tables below. A full description of each item appears in Appendix A-5.
2.8.1 BMK 750/1000 COMBUSTION CAL Menu
Table 2-6: COMBUSTION CAL Menu: BMK 750/1000
Menu Item Display
Acceptable Range
Default
Minimum
Maximum
Natural gas
Propane
1
CAL Voltage 18%
0.25
10.00
2.10
2.10
2
CAL Voltage 30%
0.25
10.00
2.55
2.55
3
CAL Voltage 45%
0.25
10.00
3.10
3.10
4
CAL Voltage 60%
0.25
10.00
3.50
3.50
5
CAL Voltage 80%
0.25
10.00
4.60
4.60
6
CAL Voltage 100%
0.25
10.00
5.60
5.60
7
SET Valve Position
0%
100%
0%
0%
8
Blower Output
Monitor Blower Output Voltage
0.00
0.00
9
Set Stdby Volt
0 V
10.0 V
2.00
2.00
10
Oxygen Level
0%
25%
0.0
0.0
