Bell & Gossett 6 71 075 114A Series e3 SC Solar Circulators - Manual (Page 5)

Available Pump HousingsÉ
Power Source RequirementsÉ
In order to ensure full service life of the D Series pump, it is important to provide a stable and non-degrading power
source at the required voltage. Operating the pump out of the specified voltage range may reduce the life of the motor
and will void the warranty.
Electrical ConnectionÉ
• The pump is provided with 6” pigtails for field hard wiring. The red lead is positive.
• Be certain that correct polarity is observed.É
• Ensure that the electrical supply is correct and that the supply cable is suitable for the rated load indicated on the
pump label.É
•ÉWire the pump in accordance with your system application.É
• A quick function test without liquid is acceptable at this time. However, if the system is not filled with liquid, reduce
the time of this function test to an absolute minimum. The pump is liquid cooled and will build heat rapidly. Excessive
heat generated by dry run operation for extended periods will damage the pump.É
• After ensuring that the unit is functioning properly, fill the system and purge any air that may be trapped in the
system loop.É
System PreparationÉ
Prior to pump start-up, closed heating and cooling systems should be cleaned, drained, and refilled with clean water.
The system fluid pH must be maintained between 7 and 9.É
Start-UpÉ
Do not start pump until the system has been filled and vented. Air should be vented from the system by means of an air
vent located at a high point in the system. The system must be completely vented prior to pump operation. Do not run
ecocirc circulators dry. Pump operation without water circulation could result in pump and motor damage.É
• Open the isolation valves and any other valves that may have been closed during the pump installation.É
• Switch the pump on.É
• If you hear noise initially, this should abate after a short while as air is purged from around the impeller.É
• Power cycling the pump several times accelerates the air removal.É
• If the noise does not disappear or decrease substantially, purge the system once again.É
*Solar: It is recommended that the pump be left in the auto position for best results.É
Periodic InspectionÉ
Bell & Gossett ecocirc solar circulators are designed to provide years of trouble free service. It is recommended that
periodic inspections be made to check for potential problems with the pump. If any leakage or evidence of leakage is
present, repair or replace the unit.É
Brass 1/2” Female
Thread/SweatÉ
Brass Union
CoupledÉ
WARNING: - HOT WATER LEAKAGE HAZARD - Pressurize the body slowly while checking for leaks at all joints
with gaskets or solder connections. Failure to follow these instructions could result in serious personal injury
and/or property damage.
U.L. Caution
This pump has been tested using water only.
Its suitability for use with liquids other than water is the end user’s responsibility.
Australia
This pump must be installed in accordance with AS3500