The Grundfos ALPHA2 26-99 F 99490916 Cast Iron Circulator Pump with Line Cord circulates water or heat-transfer fluid in HVAC systems and hydronic heating loops. It has a single-phase 115 V power requirement and is made of cast iron to provide heavy fluid handling and heat transfer. It is applied in boilers, radiant heating circuits, and chilled water systems in which fluid circulation is required to be controlled to apportion heat or cooling into the building. It is a hydronic component, which circulates fluid in piping and coils to maintain a stable temperature and constant operating conditions.
Manufacturer Name:Grundfos Product Number: ALPHA2 OEM Part Number: ALPHA2 Product Description: 26-99 F 99490916 115V Single Phase Cast Iron Circulator Pump W/ Built In Isolati Weight:15lbs/6803.88g
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What maintenance is required for the Grundfos ALPHA2 Circulator Pump?
Regularly inspect the pump for leaks, corrosion, and unusual vibrations. Clean the pump housing and check electrical connections. Verify flow and temperature settings to ensure efficient operation. Always disconnect power and relieve system pressure before maintenance.
What are common issues with the Grundfos ALPHA2 Circulator Pump?
Failure to start or operate at full flow.
Excessive noise or vibration during operation.
Leakage at seals or connections.
Electrical faults in the motor.
Installation Steps
Step1: Turn off power and shut off system isolation valves before starting.
Step2: Drain the system and remove the existing circulator pump carefully.
Step3: Install the new pump with correct flow direction and gasket alignment.
Step4: Tighten fittings and reconnect electrical wiring per labeling.
Step5: Open valves, refill and bleed the system, then restore power and test operation.
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