A) Pump Control On/Off Conditions (Only For Single And Easy-Link System) - A.O. Smith 510 Outdoor Service Manual

CONFIDENTIAL
510 Indoor / 510 Outdoor Service Manual
Ver. 1.00

12-8. (A) Pump control ON/OFF Conditions (Only for single and Easy-link system)

To run circulation pumps efficiently and effectively, the 510 Indoor / 510 Outdoor offers mode of pump
control. The following table shows the pump control ON/OFF conditions.
"Re-circulation mode"
These functions enable the re-circulation pump to be controlled by the following conditions.
Re-circulation mode
ON/OFF Conditions
The BTU requirement is more than 18,600 BTU/h*
Conditions that activate
OR
the pump
30 minutes have elapsed after previous operation
4 minutes after activation, if the computer detects a
Conditions that
BTU requirement of less than 14,800 BTU/h, the
deactivate the pump
computer will stop the pump in 90 seconds.
*The computer records the inlet temperature and the flow rate of the pump during the final minute of
its previous operation when calculating the BTU requirement.
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