Xylem A-C Fire Pump – Vertical Turbine Fire Pump AC8499 - Manual (Page 11)

11
SITE WITH STRUCTURAL STEEL FOUNDATION
1. When the pump is mounted directly on a structural steel
frame, pumps shall be located directly over, or as near as
possible to the main building members, beams, or walls.
be bolted to the support to avoid distortion, prevent vibra-
tion, and retain proper alignment.
2. If a Sub Base is being bolted to a structural steel founda-
tion, or the Sub Base is not grouted to the concrete foun-
dation, use shims for leveling the plate.
PIPING
Guidelines for piping are given in the "Hydraulic Institute
Standards", available from: Hydraulic Institute, 9 Sylvan Way,
Parisppany, NJ 07054-3802 and must be reviewed prior to
pump installation.
1. All piping must be supported independently of, and line up
naturally with, the pump flange.
2. DO NOT connect piping to pump until grout has hardened
and pump hold down bolts have been tightened.
3. It is suggested that expansion loops or joints, if used, be
properly installed in discharge line when handling liquids at
elevated temperatures, so linear expansion of piping will
not draw pump out of alignment.
4. Carefully clean all pipe parts, valves and fittings, and pump
branches prior to assembly.
5. Isolation and check valves should be installed in discharge
line. Locate the check valve between isolation valve and
pump, this will permit inspection of the check valve. The
isolation valve is required for regulation of flow, and for
inspection and maintenance of pump. The check valve
prevents pump or seal damage due to reverse flow through
the pump when the driver is turned off.
6. Increasers, if used, should be placed between pump and
check valves.
7. Cushioning devices should be used to protect the pump
from surges and water hammer if quick-closing valves are
installed in the system.
FINAL PUMP CHECK
1. Rotate shaft several times by hand to be sure that there is
no binding and all parts are free.
2. Check alignment, per the alignment procedure outlined on
page 16, to determine absence of pipe strain. If pipe strain
exists, correct piping.
Pump Installation
Pumps 20 feet (6m) or less in length are usually shipped
assembled, with the exception of the driver and packing.
When provided, refer to the Certified Pump Outline for the
applicable base plate plan for location of anchor bolt holes.
INSTALLING A PARTIALLY ASSEMBLED PUMP
1. If a baseplate was supplied, install as described in
Foundation/Piping Section page 10.
2. Clean the plate mounting flange and clean bottom surface
of discharge head mounting flange.
3. Sling through discharge hand holes or thread two eyebolts
through bolt holes in mounting flange and hoist unit into
position over foundation.
NOTE: Eyebolts or sling should be rated to handle in excess
of the pump weight (see Order Outline Drawing, if provided).
4. Lower the unit and carefully guide it so that unit does not
strike the sides of the base plate. Continue to lower unit
until the discharge head base flange engages and rests
firmly on the plate, then secure with capscrews provided.
5. When a lineshaft is shipped separately check shaft for
straightness; average total runout should not exceed
0.005" T.I.R. (0.127mm) for every 10 feet (3m). Shaft
straightness must be within tolerance prior to installation.
6. Remove stuffing box (if installed), and carefully slide shaft
through top column bearing retainer and thread into cou-
pling after replacing stuffing box or seal housing.
Useextreme care not to damage bearing retainer.
7. Refer to the remainder of this manual for complete assem-
bly, startup, maintenance, disassembly, and recommended
lubricants for the pump.
Installing Bowl Assembly
The following bowl installation instructions apply to pumps
shipped disassembled.
1. Prior to installing the bowl assembly, check that all cap-
screws are tight and any integral piping is installed.
Remove all accumulated dust, oil, or other foreign material
from the external surfaces.
WARNING : Never draw piping into place by forcing at
the flange connections of the pump. Pipe strain will
adversely effect the operation of the pump resulting in phys-
ical injury and damage to the equipment.
WARNING
: Do not work under a heavy suspended
object unless there is positive support and safe guards
which will protect personnel should a hoist or sling fail.
CAUTION
: Do not attempt to lift bowl assembly by
the pump shaft. This can result in damaging the pump
shaft.