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17

English (US)

9. Additional technical data

10. Disposal

This product or parts of it must be disposed of in 
an environmentally sound way:

1. Use the public or private waste collection 

service.

2. If this is not possible, contact the nearest 

Grundfos company or service workshop.

Subject to alterations.

Supply voltage:

1 x 115 V ± 10 %, 60 Hz

1 x 208-230 V ± 10 %, 60 Hz

Motor protection: Thermally protected

Enclosure class: CSA Type 2

Insulation class:

H

Max. discharge 
pressure:

145 psi (10 bar)

Max. sound 
pressure level:

30 dB(A)

Water hardness: 14 dH

Open systems

(domestic, potable hot water)

 

Fluid

Ambient

Min.

36 °F (2 °C)

33 °F (1 °C)

Max.

< 149 °F (65 °C)

100 °F (38 °C)

Caution

In domestic hot-water systems, it is 
recommended to keep the liquid 
temperature below 149 °F (65 °C) to 
eliminate the risk of lime 
precipitation.

Closed systems

(non-potable heating or cooling airless 

fluid)

Pump 

models

Fluid

Ambient

Min. All

36 °F 

(2 °C)

33 °F 

(1 °C)

Max.

UPS 26-150 

230 °F 

(110 °C)

100 °F

(38 °C)

UPS 43-100 

230 °F 

(110 °C)

100 °F

(38 °C)

UPS 50-60 

212 °F 

(100 °C)

100 °F

(38 °C)

Water and glycol mix

Max.

 50 % glycol at 15 °F (-9.5 °C) liquid

(Hydraulic performance change can be 
expected.)

Summary of Contents for UPS 26-150

Page 1: ...NDFOS INSTRUCTIONS Grundfos UP XL Maintenance free circulators with insulating shell if equipped Installation and operating instructions 3191277 Conforms to UL STD 514C Certified to CSA STD C22 2 No 1...

Page 2: ...easurement 12 7 4 Insulation resistance lead to ground 13 7 5 Winding resistance line to line 13 7 6 Resistance tables 13 8 Replacing components 14 8 1 Removing the pump head 14 8 2 Fitting the pump h...

Page 3: ...ty the defective product must be returned to the distributor or dealer of Grundfos products from which it was purchased together with proof of purchase and installation date failure date and supportin...

Page 4: ...These pumps are intended for indoor use only If installed outdoors the pump must be protected by an appropriate well ventilated water tight enclosure to keep out moisture and dirt Minimum ambient tem...

Page 5: ...in solid particles fibers or mineral oils The pump is lubricated and cooled by the liquid being pumped Therefore the pumped liquid must always be allowed to circulate through the pump Extended periods...

Page 6: ...the pump housing indicate the direction of water flow The pump may be installed in vertical or horizontal piping but the motor shaft must always remain horizontal as shown in fig 1 Fig 1 Installation...

Page 7: ...the shaft Gently turn the shaft If it does not turn easily repeat steps 1 through 5 above If the rotor spins freely proceed to step 7 Do not put the vent plug back into the pump until the end of step...

Page 8: ...wer supply connections 115 V and 108 230 V with internal drip loop Warning Risk of electrical shock The electrical connection and protection should be carried out in accordance with the latest edition...

Page 9: ...n shells over the pump volute as illustrated in fig 6 If the shells do not mate flange bolts are installed in the wrong direction review step one and or switch mating shell location 4 Proper amount of...

Page 10: ...st be turned off before changing speeds The speed in the three positions appears in the following table also see fig 10 UP models Speed is fixed on Speed 3 High and cover does not have a switch cover...

Page 11: ...eaker and change speed switch into position c The pump has been cut out by the thermal overload switch due to high liquid temperature Check that the liquid temperature falls within the specified range...

Page 12: ...mp is operating 2 Set the ammeter to the proper scale 3 Place the tongs of the ammeter around the leg to be measured 4 Compare the results with the amp draw information on the motor nameplate 5 Repeat...

Page 13: ...eference touch the leads of the megohmmeter to the appropriate pair of connectors Check all pairs that are present and write down and label RA1 RS1 RS2 all readings In T box at L N UP will Speed 3 Hig...

Page 14: ...leads from the terminal box 5 Disconnect and remove the conduit from the terminal box 6 Loosen and remove the four 5 mm allen head screws which connect the pump head housing to the pump housing 7 Remo...

Page 15: ...o 7 ft lb 9 5 Nm 7 Check to make sure the rotor turns freely Do this by removing the vent plug in the middle of the pump nameplate Insert a medium size flat blade screwdriver into the slot at the expo...

Page 16: ...it from the stator pump head Installation 1 Carefully press the terminal box into the stator socket 2 Replace the two T15 Torx head screws and torque to 1 5 ft lbs 2 Nm 3 Replace the wiring refer to...

Page 17: ...pressure 145 psi 10 bar Max sound pressure level 30 dB A Water hardness 14 dH Open systems domestic potable hot water Fluid Ambient Min 36 F 2 C 33 F 1 C Max 149 F 65 C 100 F 38 C Caution In domestic...

Page 18: ...18...

Page 19: ...3500 www grundfos us GRUNDFOS Canada 2941 Brighton Road Oakville Ontario L6H 6C9 Canada Phone 1 905 829 9533 Telefax 1 905 829 9512 www grundfos ca GRUNDFOS M xico Boulevard TLC No 15 Parque Industri...

Page 20: ...CM 1161312 www grundfos com The name Grundfos the Grundfos logo and be think innovate are registered trademarks owned by Grundfos Holding A S or Grundfos A S Denmark All rights reserved worldwide Copy...

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