Watts AERCO Benchmark OMM-0121 Operation And Maintenance Manual page 28

Benchmark 750-3000 Boiler Operation & Maintenance Manual
SECTION 2: OPERATION
TABLE 2-9: BST Menu
MENU ITEM DISPLAY
51 BST Deadband Hi
52 BST Deadband Lo
53
Deadband En Time
54 BST FR Up Rate
55 BST Bldg Ref Tmp
56 BST Reset Ratio
57
System Start Tmp
58
*BST COMM MENU*
59 Comm Address
60 BST Min Addr
61
BST Max Addr
62 SSD Address
63 SSD Poll Control
64 Err Threshold
65 SSD Temp Format
66 BST Upld Timer
* 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
OMM-0122_D • GF-206 • 5/9/2019
AVAILABLE CHOICES OR LIMIT
Minimum
0
0
0
1
40°F (4.4°C)
0.1
30°F (-1.1°C)
Disabled
0
1
1
0
0
1
Degrees
0
1 *
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
Maximum
25
25
120 Sec
120
230°F (110°C)
9.9
120°F (48.9°C)
Enabled
127
128
128
250
1000
9
Points
9999 sec
A b
DEFAULT
1
1
30 Sec
20
70°F (21.1°C)
1.2
60°F (15.6°C)
Disabled
0
1
8
247
0
5
Degrees
0
Page 28 of 164