Xylem NPOPTM NPO Product Training Manual - Manual (Page 22)

PAGE 22
Commercial Water
Goulds Water Technology
1.0 IMPORTANT
1.1 Inspect unit for damage. Report any damage to carrier/dealer immediately.
1.2 Electrical supply must be a separate branch circuit with fuses or circuit breakers, wire sizes, etc., per
National and Local electrical codes. Install an all-leg disconnect switch near pump.
ALWAYS DISCONNECT ELECTRICAL POWER WHEN HANDLING PUMP OR CONTROLS.
1.3 Motors must be wired for proper voltage. Motor wiring diagram is on motor nameplate. Wire size must limit
maximum voltage drop to 10% of nameplate voltage at motor terminals or motor life and pump
performance will be lowered.
1.4 Always use horsepower-rated switches, contactors and starters.
1.5 Motor Protection
1.5.1 Single-Phase: Thermal protection for single-phase units is usually built-in (check motor nameplate).
If no built-in protection is provided, use contractor with a proper overload. Fusing is permissible.
1.5.2 Three-Phase: Provide three-leg protection with properly sized magnetic starter and thermal
overloads.
1.6 Maximum Operating Limits
Liquid Temperature: 212º F (100º C) with standard seal
250º F (120º C) with high temperature seal option
Pressure: 150 PSI
Starts Per Hour: 20
1.7 Regular inspection and maintenance will increase service life. Base schedule on operating time. Refer to
section 8.
2.0 GENERAL
2.1
2.1.1 Locate pump as near liquid source as possible (below level of liquid for automatic operation).
2.1.2 Protect from freezing or flooding.
2.1.3 Allow adequate space for servicing and ventilation.
2.1.4 All piping must be supported independently of the pump and must “line-up” naturally.
NEVER DRAW PIPING INTO PLACE BY FORCING THE PUMP SUCTION AND DISCHARGE
CONNECTIONS.
2.1.5 Avoid unnecessary fittings. Select sizes to keep friction losses to a minimum.
2.1.6 Units may be installed horizontally, inclined or vertically. For vertical installation, the optional seal
vent is recommended to eliminate potential air entrapment during start-up.
DO NOT INSTALL WITH MOTOR BELOW PUMP. ANY LEAKAGE OR CONDENSATION WILL
AFFECT THE MOTOR.
CAUTION
CAUTION
CAUTION
INSTALLATION PROCEDURES