English (US)
2
English (US)
Installation and operating instructions
chapter discard.fm Page 2 Tuesday, June 7, 2011 9:29 PM
CONTENTS
1. Shipping inspection
2
2. Applications and operating ranges
2
3. Installation
2
4. Startup
5
5. Operation and Maintenance
6
6. Parts lists and Diagrams
8
7. Troubleshooting
10
SAFETY WARNING
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.
Shock Hazard
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 Article 250-80 of the National Electrical Code.
PLEASE KEEP THESE INSTRUCTIONS WITH THE PUMP FOR
FUTURE REFERENCE.
Preinstallation checklist
Your Grundfos HS End Suction pump is of the utmost
quality. Combined with proper installation, your Grundfos
pump will give you many years of reliable service.
To ensure the proper installation of the pump, carefully
read the complete manual before attempting to install the
pump.
Check the condition of the pump
Examine your pump carefully to make sure that no damage
has occurred during shipment.
Your Grundfos HS pump should remain in its shipping
carton until it is ready to be installed. This carton has been
specially designed to protect the pump from damage.
During unpacking and prior to installation, care should be
taken to ensure the pump is not dropped or mishandled.
Immediately report any damage in writing to the trans-
portation company and ask to have it inspected. Do not
destroy packing materials until the shipment is inspected
and the claim is settled.
The position of the coupling (that connects the pump
shaft to the motor shaft) is set at factory specifications.
No adjustment is necessary or advised. Refer to “Motor
Replacement” on page 6 for proper coupling positioning
procedures.
Applications and operating ranges
Before installing the pump, the following checks should be
made to ensure that the proper operating conditions for the
pump are present.
Applications
The HS end suction pump is a general service pump
designed to pump fluids in a wide range of applications.
Acceptable fluids include:
• Hot and cold water
• Clean, thin, non-aggressive and non-explosive fluids
• Consult manufacturer for fluids containing chlorine or
hydrocarbons
Operating Ranges
• Maximum fluid temperature:
180°F continuous
211°F intermittent
• Maximum working pressure:
125 PSIG
• Maximum ambient temperature: 104°F (40°C)
Consult manufacturer for higher ambient temperature
conditions.
Installation
Pump location
The pump should be located in a dry, well-ventilated area
which is not subject to freezing or extreme variations in
temperature. Care must be taken to ensure that the pump
is mounted at least 6 inches from any obstruction or hot
surfaces. The motor requires an adequate air supply to
prevent overheating and adequate space to remove the
motor for repair.
For open systems requiring suction lift, the pump should be
located as close to the water source as possible to reduce
piping losses.
Foundation
Concrete or similar foundation material should be used
to provide a secure, stable mounting base for the pump
in order to minimize noise and vibration in the system. It
is not recommended to hang the pump unit in the system
piping without added support. Bolt hole center line dimen-
sions for the various pump types are given in Figure 1 on
page 3. Secure the pump to the foundation using all four
bolt holes. Uneven surfaces can result in pump base break-
age when the mounting bolts are tightened.
