Benchmark 750-3000 Boiler Operation & Maintenance Manual
SECTION 2: OPERATION
OMM-0122_D
•
GF-206
•
5/9/2019
Technical Support
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(800) 526-0288
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Mon-Fri, 8 am - 5 pm EST Page 28 of 164
TABLE 2-9: BST Menu
MENU ITEM DISPLAY
AVAILABLE CHOICES OR LIMIT
DEFAULT
Minimum
Maximum
51
BST Deadband Hi
0
25
1
52
BST Deadband Lo
0
25
1
53
Deadband En Time
0
120 Sec
30 Sec
54
BST FR Up Rate
1
120
20
55
BST Bldg Ref Tmp
40°F (4.4°C)
230°F (110°C)
70°F (21.1°C)
56
BST Reset Ratio
0.1
9.9
1.2
57
System Start Tmp
30°F (-1.1°C)
120°F (48.9°C)
60°F (15.6°C)
58
*BST COMM MENU*
Disabled
Enabled
Disabled
59
Comm Address
0
127
0
60
BST Min Addr
1
128
1
61
BST Max Addr
1
128
8
62
SSD Address
0
250
247
63
SSD Poll Control
0
1000
0
64
Err Threshold
1
9
5
65
SSD Temp Format
Degrees
Points
Degrees
66
BST Upld Timer
0
9999 sec
0
* NOTE
:
The
1 BST Units 8
menu item shows the current status for each unit controlled by BST, up to
a maximum of 8 units. The possible characters displayed are:
- = Off Line
* = Not Available (fault, etc.)
0 = Off
1 = On,
A = Lead On
a = Lead Off
B = Lag On
b = Lag Off
S = Setpoint Limit Active
The following example shows the status of 5 units being controlled by BST where:
Unit 1 & 3 are
On
Unit 2 is
Off
Unit 4 is
Not Available
Unit 5 is
Lead On
Unit 6 is
Lag Off
1 BST Units 8
1
0
1
*
A
b