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INSTALLATION AND OPERATING INSTRUCTIONS
SCX1740 SERIES CENTRIFUGAL PUMP
Model
HP
Number
1/2
SCX1740
3/4
SCX1740
1
SCX1740
1-1/2
SCX1740
2
SCX1740
2-1/2
SCX1740
* 230 Volt only.
©2017
OWNER'S MANUAL
REPAIR PARTS LIST
High Head - Noryl
MODELS
ODP MOTORS
115/230/60/1
208-230/460/60/3
1740-B78635
1740-B78637
1740-B78639
1740-B78641
1740-B78643*
1740-B78645*
1160 Cranston Ave., Cranston, RI 02920
®
Impellers
115/230/60/1
1740-B78636
1740-B78647
1740-B78638
1740-B78649
1740-B78640
1740-B78651
1740-B78642
1740-B78653*
1740-B78644
1740-B78655*
1740-B78646
Taco, Inc.
TEFC MOTORS
208-230/460/60/3
1740-B78648
1740-B78650
1740-B78652
1740-B78654
1740-B78656
1740-B78658
BE495-TACO (Rev. 11/13/15)
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Related Manuals for Taco Comfort Solutions SCX1740 Series
Summary of Contents for Taco Comfort Solutions SCX1740 Series
- Page 1 OWNER’S MANUAL INSTALLATION AND OPERATING INSTRUCTIONS REPAIR PARTS LIST SCX1740 SERIES CENTRIFUGAL PUMP High Head - Noryl ® Impellers MODELS Model ODP MOTORS TEFC MOTORS Number 115/230/60/1 208-230/460/60/3 115/230/60/1 208-230/460/60/3 SCX1740 1740-B78635 1740-B78636 1740-B78647 1740-B78648 SCX1740 1740-B78637 1740-B78638 1740-B78649 1740-B78650...
- Page 2 Recommended pump suction Support discharge pipe as required and discharge connections Gate Valve Priming Plug Union Street Elbow Discharge to service Vent Plug Short length of straight pipe after reducer Important: All connections must be air tight Support suction pipe Eccentric as required Reducer...
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Page 3: Piping - General
PIPING - GENERAL DISCHARGE PIPING Increase pipe size from pump tapping as show in Table I. Figure 1 Support both suction and discharge piping independently at a (Page 2) depicts a recommended run of pipe and fittings for the point near the pump to avoid putting a strain on the pump hous- discharge. - Page 4 ELECTRICAL Connection diagram for dual voltage, single-phase motors. Your Hazardous voltage. Can shock, burn, or dual-voltage motor’s terminal board (under the motor end cover) cause death. Disconnect power to motor before working on pump will match one of the diagrams below. Follow that diagram if nec- or motor.
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Page 5: Pump Service
SERVICE PUMP SERVICE 2. Turn seal plate over so seal cavity is up, clean cavity thoroughly. This centrifugal pump requires little or no service other than rea- 3. Lubricate outside rubber surface of ceramic seat with soapy sonable care and periodic cleaning. Occasionally, however, a water and press firmly into seal cavity with finger pressure. -
Page 6: Repair Parts List
SCX1740 Series 1/2 thru 1-1/2 HP REPAIR PARTS LIST SCX1740 1740-B78635 1740-B78637 1740-B78639 1740-B78641 1740-B78647 1740-B78649 1740-B78651 1740-B78653 1740-B78636 1740-B78638 1740-B78640 1740-B78642 Part 1740-B78648 1740-B78650 1740-B78652 1740-B78654 Description Used 1/2 HP 3/4 HP 1 HP 1-1/2 HP Motor, 115/230V/60 Hz., 1 Phase, ODP... - Page 7 SCX1740 Series 2 and 2-1/2 HP REPAIR PARTS LIST SCX1740 1740-B78643 1740-B78645 1740-B78655 1740-B78646 1740-B78644 Part 1740-B78656 1740-B78658 Description Used 2 HP 2-1/2 HP Motor, 115/230V/60 Hz., 1 Phase, ODP B80444 B80445 Motor, 115/230V/60 Hz., 1 Phase, TEFC B80456 Motor, 208-230/460V/60 Hz., 3 Phase, ODP...
- Page 8 TROUBLE - CAUSES AND REMEDY TROUBLE AND CAUSE REMEDY FAILURE TO PUMP 1. Pump not properly primed. 1. Make sure pump casing and suction line are full of water. See priming instructions. REDUCED CAPACITY AND/OR HEAD 1. Air pockets or leaks in suction line. 1.