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English (US)

3. Safety warning

3.1 Read this booklet

This booklet is designed to help a certified 
installer to install, begin operation of, and 
troubleshoot the Grundfos Small UP and UPS 
pumps.

Following the instructions will ensure safe, 
trouble-free operation.

This booklet should be left with the owner of the 
pump for future reference and information 
regarding its operation. Should the owner 
experience any problems with the pump, a 
certified professional should be contacted.

3.2 Electrical work

All electrical work should be performed by a 
qualified electrician in accordance with the latest 
edition of the National Electrical Code, local 
codes and regulations.

4. Pre-installation checklist

4.1 Confirm you have the correct pump

Read the pump nameplate to ensure it is the 
one you ordered.

Compare the pump's nameplate data and its 
performance curve (for head, gpm, etc.) with 
the application in which you plan to install it.

Will the pump do what you expect it to do?

4.1.1 Pump to system type recommendations

Open systems (i.e. potable water): Stainless 
steel or bronze volute (pump housing) only.

Closed systems (i.e. airless, non-potable 
water): Cast iron, stainless steel, or bronze 
volute (pump housing).

Other considerations regarding Grundfos small 
UP and UPS pumps:

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 temperatures must be no 
lower than 33 °F (1 °C).

For ambient and fluid temperature see 
sections 

4.4 Pumped liquid requirements

 

and 

9. Additional technical data

.

4.2 Check the condition of the pump

The pump's shipping carton is specially 
designed around the pump during production to 
prevent damage.

As a precaution, it should remain in the carton 
until you are ready to install it. At that point, look 
at the pump and examine it for any damage that 
may have occurred during shipping.

Examine any other parts of the shipment as well 
for any visible damage. Once the pump has 
been removed from the box, care should be 
taken NOT to drop or mishandle the pump.

Box contents:

one pump

two gaskets (flanged units only)

one Installation and Operation Instruction 
(I&O).

Warning

A faulty motor or wiring can cause 
electrical shock that could be fatal, 
whether touched directly or 
conducted through standing water. 
For this reason, proper grounding 
of the pump to the power supply's 
grounding terminal is required for 
safe installation and operation.

In all installations, the 
above-ground metal plumbing 
should be connected to the power 
supply ground as described in the 
National Electrical Code. All wiring 
must comply with the National 
Electrical Code, state, and local 
regulations.

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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