Xylem G&L A-C 9100 Series, Instruction Manual

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4.1.2 Typical installation
4
5
6
7
8
9
1
2
3
1. Compression tank (locate the compression tank on the suction side of the pump)
2. Air separator
3. Supply to system
4. Circuit setter
5. Triple duty valve
6. Isolation valve
7. From boiler chiller or converter
8. Cold water supply
9. Reducing valve
4.1.3 Foundation requirements
Requirements
• A substantial foundation and footing should be built to suit local conditions and form a
rigid support to maintain alignment.
• The foundation must be able to absorb any type of vibration and form a permanent,
rigid support for the unit.
• The foundation must weigh at least five times the weight of the pump unit.
• Pour the foundation without interruption to within 1/2 to 1–1/2 inches of the finished
height.
• The top surface of the foundation should be scored and grooved before the concrete
sets. This provides a bonding surface for the grout.
• Provide a flat, substantial concrete foundation in order to prevent strain and distortion
when you tighten the foundation bolts.
• Sleeve-type and J-type foundation bolts are most commonly used. Both designs allow
movement for the final bolt adjustment.
• Allow the foundation to cure for several days before you proceed with the pump
installation.
Diagram
• Allow enough bolt length for grout, shims, lower baseplate flange, nuts, and washers.
4 Installation
14 G&L Pumps Series A-C 9100 Base Mounted Centrifugal Pumps INSTRUCTION MANUAL