ALPHA 15-55 HWR-D
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
ALPHA 15-55 HWR-D
English (US)
Installation and operating instructions ..............................4
3
Table of contents
English (US) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. Limited warranty............... 4
2. General information ............. 4
2.1 Hazard statements .............. 4
2.2 Notes ..................... 5
3. Receiving the product............ 5
3.1 Inspecting the product ............ 5
3.2 Scope of delivery ............... 5
4. Installing the product ............ 6
4.1 Location .................... 6
4.2 Tools...................... 6
4.3 Insulating the pump housing ......... 6
4.4 Mechanical installation ............ 6
4.5 Electrical connection ............. 9
5. Starting up the product ...........10
5.1 Venting the system ..............10
5.2 Starting the pump ...............11
6. Product introduction ............11
6.1 Product description ..............11
6.2 Accessories ..................11
6.3 Intended use .................12
6.4 Pumped liquids/media ............12
6.5 Identification..................12
6.6 Approvals for ALPHA 15-55 HWR-D .....13
7. Control functions ..............14
7.1 Pump display .................14
7.2 Temperature sensor LED ...........14
7.3 Push-button LED ...............15
7.4 Repeater LED .................15
7.5 Pump curve ..................16
8. Servicing the product ............17
8.1 Maintaining the product............17
9. Fault finding the product ..........18
9.1 Fault finding table ...............18
10. Technical data ................20
10.1 Operating conditions .............20
11. Disposing of the product ..........20
1. Limited warranty
Products manufactured by Grundfos Pumps
Corporation (Grundfos) are warranted to the
original user only to be free of defects in material
and workmanship for a period of 36 months from
the date code listed on the nameplate of the
pump. Grundfos' liability under this warranty shall
be limited to repairing or replacing at Grundfos'
option, without charge, F.O.B. Grundfos' factory or
authorized service station, any product of
Grundfos manufacture. Grundfos will not be liable
for any costs of removal, installation,
transportation, or any other charges that may
arise in connection with a warranty
claim. Products which are sold, but not
manufactured by Grundfos, are subject to the
warranty provided by the manufacturer of said
products and not by Grundfos' warranty. Grundfos
will not be liable for damage or wear to products
caused by abnormal operating conditions,
accident, abuse, misuse, unauthorized alteration
or repair, or if the product was not installed in
accordance with Grundfos' printed installation and
operating instructions and accepted codes of
good practice. The warranty does not cover
normal wear and tear. To obtain service under this
warranty, 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
supporting installation data. Unless otherwise
provided, the distributor or dealer will contact
Grundfos or an authorized service station for
instructions. Any defective product to be returned
to Grundfos or a service station must be sent
freight prepaid; documentation supporting the
warranty claim and/or a Return Material
Authorization must be included if so
instructed. Grundfos will not be liable for any
incidental or consequential damages, losses, or
expenses arising from installation, use, or any
other causes. There are no express or implied
warranties, including merchantability or fitness for
a particular purpose, which extend beyond those
warranties described or referred to above. Some
jurisdictions do not allow the exclusion or
limitation of incidental or consequential damages
and some jurisdictions do not allow limitations on
how long implied warranties may last.
Therefore,the above limitations or exclusions may
not apply to you. This warranty gives you specific
legal rights and you may also have other rights
which vary from jurisdiction to
jurisdiction. Products which are repaired or
replaced by Grundfos or authorized service center
under the provisions of these limited warranty
terms will continue to be covered by Grundfos
warranty only through the remainder of the
original warranty period set forth by the original
purchase date.
2. General information
2.1 Hazard statements
The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
4
English (US)
DANGER
Indicates a hazardous situation which,
if not avoided, will result in death or
serious personal injury.
WARNING
Indicates a hazardous situation which,
if not avoided, could result in death or
serious personal injury.
CAUTION
Indicates a hazardous situation which,
if not avoided, could result in minor or
moderate personal injury.
The hazard statements are structured in the
following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
2.2 Notes
The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
FM
Observe these instructions for
explosion-proof products.
A blue or gray circle with a white
graphical symbol indicates that an
action must be taken.
A red or gray circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be
taken or must be stopped.
If these instructions are not observed,
it may result in malfunction or damage
to the equipment.
Tips and advice that make the work
easier.
3. Receiving the product
3.1 Inspecting the product
• Check that the product received is in
accordance with the order.
• Check that the voltage and frequency stated
on the product nameplate match the voltage
and frequency of the installation site.
Take care when handling the
product. Do not drop the product.
3.2 Scope of delivery
The box contains the following items:
Quantity Description
1 ALPHA HWR-D pump
1 Line cord
2 Gaskets
1 Push-button HWR-D
1 Temperature sensor HWR-D*
1 Check valve
1 "Check valve installed" sticker
1
Installation and operating
instructions
* If included in this system.
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English (US)
4. Installing the product
4.1 Location
TM073961
Fig. Location of the pump and accessories
The system is intended for indoor use only in
areas protected from droplets and splashes.
Maximum ambient temperature is 104 °F (40 °C).
Push-button HWR-D
Do not install the push-button HWR-D in a shower
or under the tap/faucet where it could be exposed
to water. Mount it at a suitable height out of reach
of small children and pets.
Repeater
This repeater is only for use with the ALPHA
15-55 HWR-D system and is intended for indoor
installation only in areas safe from droplets and
splashes.
For optimum use, place the repeater between the
ALPHA 15-55 HWR-D pump and the push-button
located furthest away from the pump.
4.2 Tools
You will need the following tools to install the
system:
• Hexagon key 4 mm
• Pipe wrench
• Phillips PH1 screwdriver (for temperature
sensor screws).
4.3 Insulating the pump housing
Do not insulate the control box. Do not
cover the control panel.
TM071424
Fig. Insulating the pump housing
4.4 Mechanical installation
4.4.1 Installing the pump
When making pipe connections, follow the piping
manufacturer's recommendations and all code
requirements for the piping material.
WARNING
Pressurized system
Death or serious personal injury
‐ Do not hold the pump in place with
tools while tightening the nuts on
the pump housing.
1. Flush the system of debris before installation.
2. Insert the check valve if required.
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English (US)
3. Refer to the arrows on the pump housing
indicating the direction of the liquid flow
through the pump.
4. Install the pump with horizontal motor shaft.
5. Fit the two gaskets supplied to the pump
ends.
Remember to use the two gaskets
included with the pump.
TM072178
Fig. Check valve installation
TM072176
Fig. Installation positions
4.4.2 Changing the power head position
CAUTION
Hot surface
Minor or moderate personal injury
‐ Position the pump so that persons
cannot accidentally come into
contact with hot surfaces.
WARNING
Electric shock
Death or serious personal injury
‐ Switch off the power supply before
starting any work on the product.
Make sure that the power supply
cannot be accidentally switched on.
WARNING
Pressurized system
Death or serious personal injury
‐ Before dismantling the pump, drain
the system or close the isolating
valve on either side of the pump
before you remove the screws. The
pumped liquid may be scalding hot
and under high pressure.
If you change the position of the power
head, fill the system with the liquid to
be pumped or open the isolating
valves.
• Make any change to the power
head orientation before filling the system with
liquid.
• You can turn the power head in steps of
90°. See figure for permissible positions.
• Only use orientations C and D for CSA,
enclosure type 2.
Proceed as follows:
1. If liquid is present, drain the liquid from the
pump or isolate the liquid from the pump.
2. Remove the four socket head cap screws.
3. Turn the pump head to the desired position.
4. Cross-tighten the screws to: 7 ft-lbs torque.
TM072173
Fig.
Removing the four socket head cap
screws on the power head
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English (US)
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