Ultra Boiler Manual

Part number 550-100-440/0122
105
  
ADVANCED INSTALLATION
 (continued)
Menu/Item Units Low
Value
High
Value
Default Comment
Max On Time
minutes o 240 30 Longest time boiler will satisfy this system before switching to an active lower priority
Min On Time
minutes o 240 15 Time boiler will satisfy this system before switching to the next active priority
Boost Interval
minutes o 240 o When operating on ODR increase target 10F when this time expires until reaching MAX
Prepump Time: ### SEC
seconds 0 240 20 Additional time to run circulators longer than standard 10 second time
Postpump Time: ### SEC
seconds o 240 30 Circulator run time aer call for heat ends
Circulator 1
on-o o on o Circulator activates on this call for heat if on
Circulator 2
on-o o on on Circulator activates on this call for heat if on
Circulator 3
on-o o on on Circulator activates on this call for heat if on
Maximum Rate
%Rate 21% 100% 96% Boiler Model and altitude specic (derated to 96% from factory)
NOTE: Adjusting boiler ring rate will aect AFUE rating.
Minimum Rate %Rate 20% 99% 33% (80-299)
20% (399)
Boiler Model and altitude specic
Boiler Priority 3
System Type
Types Custom
Max Supply
°F 60 190 190 Highest target the control will calculate based on outdoor temperature
Target temperature if outdoor sensor is not detected
(manual reset lockout at 200°F)
Min Supply
°F 60 190 70 Lowest target the control will calculate based on outdoor air temperature
Max OD Reset
°F 50 100 70 Outdoor air temperature that forces the minimum supply water to be target
temperature
Min OD Reset
°F –20 50 0 Outdoor air temperature that forces the maximum supply water to be target
temperature
Modulate On Diff
°F 2 10 5 Boiler turns on if temperature drops below target minus dierential on
Modulate Off Diff
°F 2 10 5 Boiler shuts down if modulates past target plus dierential o
Max On Time
— — — — Priority 3 does not have this setting
Min On Time
minutes o 240 15 Time boiler will satisfy this system before switching to the next active priority
Boost Interval
minutes o 240 o When operating on ODR increase target 10F when this time expires until reaching MAX
Prepump Time: ### SEC
seconds 0 240 20 Additional time to run circulators longer than standard 10 second time
Postpump Time: ### SEC
seconds o 240 30 Circulator run time aer call for heat ends
Circulator 1
on-o o on on Circulator activates on this call for heat if on
Circulator 2
on-o o on on Circulator activates on this call for heat if on
Circulator 3
on-o o on on Circulator activates on this call for heat if on
Maximum Rate
%Rate
21% 100%
96% Boiler Model and altitude specic (derated to 96% from factory)
NOTE: Adjusting boiler ring rate will aect AFUE rating.
Minimum Rate
%Rate
20% 99% 33% (80-299)
20% (399)
Boiler Model and altitude specic
Circulator Exercising
Circulator 1
on-o o on on Circulators exercise 10 seconds every 72 hours of inactivity if on
Circulator 2
on-o o on on Circulators exercise 10 seconds every 72 hours of inactivity if on
Circulator 3
on-o o on on Circulators exercise 10 seconds every 72 hours of inactivity if on
Freeze Protect Circs
Circulator 1
on-o o on o If HxOut sensor out falls below 40F boiler res low and turns on this circ until 45F
Circulator 2
on-o o on on If HxOut sensor out falls below 40F boiler res low and turns on this circ until 45F
Circulator 3
on-o o on o If HxOut sensor out falls below 40F boiler res low and turns on this circ until 45F
Figure 116  (see Figure 115, page 102 for location in menu sequence), continued