MYERS WHR5H, WHR10H, WHR15H, WHR20H Installation And Service Manual
INSTALLATION AND SERVICE MANUAL
WHR5H, 10H, 15H, 20H Series
Submersible Sewage Pumps
293 WRIGHT STREET, DELAVAN, WI 53115 WWW.fEmyERS.COm
PH: 888-987-8677
© 2013 Pentair All Rights Reserved. 23833A551 (09/23/13)
SAFETY WARNINGS
Before Installation: This manual contains important
information for the safe use of this product. Read this
manual completely and follow the instructions carefully.
Reasonable care and safe methods relating to the
installation and operation of this product should be practiced.
Check local codes and requirements before installation.
DO NOT THROW AWAY OR LOSE THIS MANUAL. Keep
it in a safe place so that you may refer to it often for the
continued safe operation of the product.
Single phase pumps with automatic heat
sensor reset will restart without warning as the motor
cools. Therefore, never do service work on the pump
unless power supply is disconnected.
Risk of electrical shock and re. May
result in serious injury, death or re hazard. Disconnect all
electrical sources prior to installation, handling or servicing.
Only qualied personnel may install this system. NFPA
70/National Electric Code (NEC) or local codes must be
followed. System must be properly grounded according to
NEC. Do not lift pump by power cord.
Biohazard Risk. Once wastewater source
has been connected to system, Biohazard Risk exists.
Installer(s) and/or service personnel must use proper
Personal Protective Equipment and follow handling
procedures per OSHA 29 CFR 1910.1030 when handling
equipment after wastewater source has been connected
to system.
Risk of Asphyxiation. Installer(s) and/or
service personnel must use proper Personal Protective
Equipment and follow OSHA 29 CFR 1910.146 or OSHA
29 CFR 1926. Pump may be installed in a location
classied by OSHA as a conned space.
Risk of Fire or Explosion. Do not smoke or
use open ames in or around this system. This system is
not intended for use in hazardous locations per NFPA 70
National Electric Code. Do not pump ammable liquids.
Cutting Risk. Risk of serious cutting or
amputation exists. Disconnect all power sources prior to
servicing pump. Pump may start without warning.
DO NOT modify the cord and plug. When using the
cord and plug, plug into a grounded outlet only. When
wiring to a system control, connect the pump ground lead
to the system ground.
DO NOT run the pump dry. Dry running can
overheat the pump (causing burns to anyone handling it)
and will void the warranty.
The pump normally runs hot. To avoid burns, allow it
to cool for 30 minutes after shutdown before handling it.
Submersible sewage pumps are not approved for
use in swimming pools, recreational water installations,
decorative fountains or any installation where human
contact with the pumped uid is common. Pump is
designed to be installed in a sump or wet location where
drainage collects.
Risk of electric shock. Pumps without seal
leak detectors are supplied with a grounding connector
and grounding-type attachment plug on the power cord.
To reduce the risk of electric shock, be certain that it is
connected only to a properly grounded, grounding-type
receptacle. DO NOT cut off ground pin or use an adapter
tting. DO NOT use an extension cord with this pump.
Entire plug may be cut off if a control panel is used.
When wiring this pump follow all local electrical and
safety codes and ordinances as well as the most recent
National Electric Code (NEC-ANSI/NFPA 70).
All pumps have a GROUND WIRE that is connected to a
screw in the metal motor housing. This wire goes to the
receptacle or control box which must be connected to an
NEC approved ground.
California Proposition 65 Warning
This product and related accessories contain
chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
GENERAL DESCRIPTION AND USES
The WHR Series are solids handling pumps that can be
used to pump RAW SEWAGE for COMMERCIAL and
DOMESTIC use, but are not intended to handle large
rags, mop heads or strings. All pumps can be used for
normal sewage duty where extra capacity is required.
RECESSED IMPELLERS
All of the pumps are of the recessed impeller type that
provides a clear volute passage for solids as no solids
pass through the impeller.
All of the pumps listed can be used to pump septic tank
EFFLUENT or GROUND sewage as used in some
pressure sewer systems.
THESE PUMPS ARE NOT APPROVED
FOR, AND SHOULD NOT BE USED IN SWIMMING
POOLS OR FOUNTAINS.
AIR LOCKING
A sewage pump is air locked if water traps air in the
pump and it cannot get out, thus preventing the pump
from operating.
In installations of this type a 1/8" hole should be drilled
in the discharge pipe below the check valve. The check
valve should be 12 to 18 inches above pump discharge.
Do not put check valve directly into pump discharge
opening.
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LEVEL CONTROLS
All pumps must use certied level control switches for
automatic operation. Level control rating must be at least
equal to the horsepower rating of the pump.
Plug-in cords can be used on all the single phase pumps
without seal leak detector. This cord has a GROUND
pin that plugs into a grounded receptacle. The grounded
receptacle cannot be used in the wet sump or basin due
to DANGER of current leakage.
Sealed junction boxes must be used in wet sumps or
basins to make connections to motor cord.
MOTOR TYPES
All single phase pump motors have internal capacitors.
Automatic reset overload switches are attached directly
to the motor windings on single phase pumps.
Three phase pump motors are squirrel cage induction
type.
INSTALLATION
Pumps can be installed inside sealed basins with proper
venting for either simplex or duplex systems. Simplex or
duplex basin systems are available.
Basins are not intended for use with home septic
systems. They are for use in ofce buildings and small
industrial buildings and factories.
If raw sewage must be pumped from the home's sewage
system, use outside basins that connect with pressure
sewer mains or gravity sewers, or run to septic tanks.
Basins can be used inside the home where extra capacity
sump pumps are required for water softeners and wash
water.
If an inside basin is used, it is usually installed at the time
of pouring the concrete basement oor.
Pumps can be installed in a compartment of septic tanks
for pumping to pressure sewer mains, gravity sewers,
leach elds, or evaporation mounds.
PROPER VENTING FOR BASINS INSTALLED
INSIDE
All inside sealed basins must have a 2" or 3" vent pipe
installed in accordance with local codes. Basins for
handling softener water, wash or drainage water do not
have to be sealed or vented.
Outside basins are usually of berglass and from 4 to
8 feet deep and have a sealed cover. Pump is usually
installed with a lift-out rail system so that pump can be
removed without disturbing the discharge piping. The
check valve comes out with pump for servicing. Complete
lift-out systems mounted in berglass basins are
available to meet customer specications.
Basin must be vented in accordance with
local plumbing codes. These pumps are not designed
for and CANNOT be installed in locations classied
as hazardous in accordance with the National
Electric Code.
PIPING
Pumps are tted with 2" or 3" female threaded pipe
ange. Galvanized or PVC plastic pipe can be used.
Plastic pipe is preferred for raw sewage or septic tank
efuent.
CHECK VALVES AND SHUT-OFF VALVES
All pumps must have check valves and shut-off valves
in the discharge line. Check valves must be apper type
with outside spring or ball type. Shut-off valves can be
ball or gate type. Plastic construction for both check and
shut-off valves is preferred.
HOW TO SET CONTROLS FOR SIMPLEX
SYSTEMS
1. Automatic systems — These systems have the
oat switches mounted on the pump, so pump is
installed in the basin and motor cord is plugged into
GROUNDED receptacle. For sealed basin cover,
power cord is brought through a split rubber plug in
the basin cover.
2.
Where 2 oat controls are used, the turn-on control
is set 3" to 6" above top of motor, and the turn-off
control is set about 6" to 8" above bottom of basin.
If a high level alarm control is used, it is set about 6"
above upper control. If basin depth will not allow these
settings, closer spacing can be used.
HOW TO START SIMPLEX SYSTEMS
1. For single-phase pumps with plug cords piggyback
into receptacle and run water into basin until pump
starts. Allow pump to make several on/off cycles.
Leave power cord plugged in.
If pump runs but does not pump it may be air locked.
Unplug cord and crack union in the discharge line,
then restart pump. This should vent off any trapped
air. Retighten union.
2. With 2 oat controls turn on power at the control box
and run water into basin. When level gets above top
control, pump should start and continue to pump
until level drops to lower control, stopping pump. Run
pump through several cycles. If pump runs but does
not pump, turn off power and check for an air lock.
Leave power on for automatic operation.
For all cases if motor does not start when water level is
up, check for proper plug-in or that start switch is on, or if
fuse is blown.
ALWAYS HAVE ELECTRICIAN MAKE ELECTRICAL
CHECKS.
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