38
Rotation schedule adjustment
Description
Electrical Connection(s)
Programming Instructions
•
Standard rotation schedule is
based on equalizing run time
on a 1-hour schedule
•
To vary the rotation to a fixed
schedule based on (hours,
days)
1)
Press
and
2)
Press
[Lead Lag Master Configuration]
3)
Press
[Advanced Settings >]
4)
Press the to arrive at
Algorithms
5)
Select
Lead selection method: Sequence order
6)
Select
Lag selection method: Sequence order
7)
Select
Lead rotation time: (user defined)
Base load rate adjustment
Description
Electrical Connection(s)
Programming Instructions
•
Upon a call for heat the lead
boiler will fire to the specified
base load rate (80%). If the
temperature is not within
Error threshold (5
o
F) of
setpoint after Interstage
delay (2 minutes) a lag boiler
will be brought online and
will also fire at the base load
rate specified.
•
Modulation of boilers will
only occur after all boilers in
the Lead Lag system are firing
at the specified base load
1)
Press
and
2)
Press
[Lead Lag Master Configuration]
3)
Press
[Advanced Settings >]
4)
Press the to arrive at
Rate Allocation
5)
Select
Base load common: (user defined)
Summary of Contents for DRH300
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Page 38: ...32 13 Place toggle switch setting to REMOTE for remote operation if required...
Page 69: ...63 PART 12 EXPLODED VIEW 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20...
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Page 77: ...71 PART 13 ELECTRICAL DIAGRAMS...
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