Grundfos CRN-H MAGdrive, Installation And Operating Instructions Manual

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7
English (US)
Mounting on a Grundfos base plate
Check that the Grundfos base plate will fit to your pump model.
The base plate is made with adjustable motor mount sliders to
accommodate a range of Grundfos CRN-H pumps. See fig.
4 .
The sliders make it possible to separate the motor from the pump
end if service is required. To mount the pump to the base plate,
proceed as follows:
1. Install the base plate (1) on the foundation in accordance with
the instructions above.
2. If the base plate is grouted, allow grouting sufficient time to
dry.
3. Set the motor mount sliders (3) in position on the base plate
rails (2).
4. With a hoist, lower the pump until it is almost on the sliders.
Make all necessary adjustments to line up all bolts and bolt
holes and hand-tighten all bolts.
5. Lower the pump completely onto the base plate, and tighten
all bolts to the proper torque (see bolt table).
Fig. 4
Grundfos base plate
5.3 Bolt torques
Outdoor installation
When installed outdoors, we recommend that you provide the
motor with a rain cover or other shelter.
Tightening torques
The table below shows the recommended tightening torques for
bolts in flanges.
TM
0
4
4
123
1
2
11
Pos. Description
1 Base plate
2 Base plate rail
3 Motor mount slider
4 Motor mounting bolt
5 1/4" bolt
6 Grouting hole
7 5/8" bolt
8 Volute mounting pad
9 Hole for lifting hook
10 ANSI mounting hole
Bolt torque
Motor frame Bolt size [ft-lbs] [Nm]
N/A 1/4" - 20 UNC 7 9.5
56C 5/16" - 18 UNC 14 19
182/184TC 3/8" - 16 UNC 25 34
213/215TC 3/8" - 16 UNC 25 34
254/256TC 1/2" - 13 UNC 62 84
284/286TSC 1/2" - 13 UNC 62 84
324/326TSC 5/8" - 11 UNC 109 148
364/365TSC 5/8" - 11 UNC 109 148
Torque
CR, CRN-H [ft-lbs] [Nm]
1s to 5 37-45 50-60
10 to 20 45-52 60-70
32 to 90 52-59 70-80