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Summary of Contents for Grundfos ALPHA 26-99
- Page 1 GRUNDFOS INSTRUCTIONS ALPHA 26-99 Installation and operating instructions...
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Page 2: Table Of Contents
5.6 Performance curves and not by Grundfos' warranty. Control functions Grundfos will not be liable for damage or wear to 6.1 Internal control principles products caused by abnormal operating 6.2 External control principles conditions, accident, abuse, misuse, 6.3 User interface (AUTO version) -
Page 3: General Information
A blue or grey circle with a white Products which are repaired or replaced by graphical symbol indicates that an Grundfos or authorized service center under the action must be taken. provisions of these limited warranty terms will continue to be covered by Grundfos warranty... -
Page 4: Changing The Pump Head Position
3.1 Changing the pump head position CAUTION DANGER Hot surface Minor or moderate personal injury Electric shock - Position the pump so that persons Death or serious personal injury cannot accidentally come into - Switch off the power supply before contact with hot surfaces. -
Page 5: Insulating The Pump Housing
If you expect constant ambient air for easy installation of the power cable. temperatures higher than 130 °F (54 °C), please contact Grundfos. Inrush current The inrush current is the charge current to the 3.3 Electrical installation electrolytic capacitor in the power supply to the electronics. - Page 6 Ground fault circuit interrupter (GFCI) WARNING WARNING Electric shock Death or serious personal injury Electric shock - The connection to the fixed wiring Death or serious personal injury systems must be made using a - Use a suitable type of GFCI flexible conduit system only.
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Page 7: Starting Up The Product
4. Starting up the product 3.3.2 Signal-cable connection WARNING CAUTION Electric shock Hot liquid Death or serious personal injury Minor or moderate personal injury - The pump must be connected to an - When loosening the inspection external main switch with a screw, be aware of hot, spraying minimum contact gap of 0.12 water. -
Page 8: Product Introduction
5. Product introduction 5.3 Pumped liquids For more technical data, see section 5.1 Product description 8. Technical data. ALPHA1 26-99/ALPHA2 26-99 circulator pumps DANGER are of the canned-rotor type. Pump and motor form an integral unit without shaft seal, with only Flammable material one gasket for sealing and four screws for Death or serious personal injury... -
Page 9: Identification
5.4 Identification 5.5 Approvals 5.4.1 Nameplate 5.5.1 cULus approval ALPHA1 26-99/ALPHA2 26-99 pumps for the North American market are UL approved (E96215 vol. 1 and MH26400). To identify which models are approved, find a list with the codes in section 8.1 Approval codes. -
Page 10: Performance Curves
5.6 Performance curves [ft] Proportional pressure 3 Proportional pressure 2 Proportional pressure 1 Q [US GPM] Q [m³/h] Proportional pressure AUTOAdapt [ft] Constant pressure 3 Constant pressure 2 Constant pressure 1 Q [US GPM] Q [m³/h] Constant pressure AUTOAdapt Fig. 5 Performance curves, ALPHA2 26-99 circulators* * ALPHA1 26-99 circulators are externally speed-controlled by an analog 0-10 V DC signal. -
Page 11: Control Functions
Constant Pressure 36 V Signal ref. The differential pressure is constant. Profile R 6.1.1 GRUNDFOS AUTOADAPT The Grundfos AUTOADAPT function enables Max. the circulator to control the pump performance automatically within a defined performance range. • Adjusting the pump performance to the size of the system. - Page 12 Alarm output signal An alarm output signal is available. Output transistor status indicates pump operation. Output signal is activated if: • Stop (input signal 0.5 V - 2 V) • Stop (because of an alarm) (input signal 2 V - 10 V) Output signal is not activated if: •...
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Page 13: User Interface (Auto Version)
6.3 User interface (AUTO version) Eight settings are easily available by pushing • Press the button for two seconds. the button. Three LEDs show the chosen – The pump enters setting mode, and the setting. LED starts flashing. The user interface allows selection between •... -
Page 14: Fault Finding The Product
7. Fault finding the product DANGER CAUTION Electric shock Hot liquid Death or serious personal injury Minor or moderate personal injury - Switch off the power supply before - The pumped liquid may be scalding starting any work on the product. hot. -
Page 15: Technical Data
1. Use the public or private waste collection Control service. Code Voltage Power mode 2. If this is not possible, contact the nearest Grundfos company or service workshop. GFJNH 115 V 120 W GFJOF 115 V 120 W AUTO 8.2 Operating conditions Supply voltage •... - Page 17 GRUNDFOS Canada GRUNDFOS México GRUNDFOS Kansas City 2941 Brighton Road Boulevard TLC No. 15 9300 Loiret Blvd. Oakville, Ontario L6H 6C9 Canada Parque Industrial Stiva Aeropuerto Lenexa, Kansas 66219 Phone: +1-905 829 9533 C.P. 66600 Apodaca, N.L. México Phone: (913) 227-3400...
- Page 18 99475108 1220 ECM: 1302942 www.grundfos.com...
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