Grundfos UPS 15-35 User manual

GRUNDFOS INSTRUCTIONS
UP Series circulators®
Installation and operating instructions
UP15 and UP26
Stainless and Bronze

10
English (US)
English (US) Installation and operating instructions
Original installation and operating
instructions
CONTENTS
Page
1. Limited warranty
UPS 15, 26, 43 circulator pumps 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
date of manufacture. 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. GRUNDFOS will not
be liable for any costs of removal, installation,
transportation, or any other charges which may
arise in connection with a warranty claim.
All other UP and UPS small circulators
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 24
months from date of installation, but not more
than 30 months from date of manufacture.
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 which 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 operation
instructions.
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 the GRUNDFOS factory or
authorized service station for instructions.
Any defective product to be returned to the
factory or service station must be sent freight
prepaid; documentation supporting the warranty
claim and/or a Return 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.
1. Limited warranty 1
0
2. Symbols used in this document 1
1
3. Product description 1
1
3.1 Introduction 1
1
3.2 Delivery and handling 1
1
3.3 Pre-installation checklist 1
1
4. Installation 1
3
4.1 Position of the terminal box 1
3
4.2 How to change the terminal box
position 1
3
4.3 Installation requirements 1
3
5. Electrical installation 1
4
5.1 For all 115 V and 230 V models 1
4
6. Startup 1
5
7. Operation 1
5
8. Troubleshooting 1
5
8.1 Failure to operate 1
5
9. Disposal 1
5
WARNING
Prior to installation, read these
installation and operating instructions.
Installation and operation must
comply with local regulations and
accepted codes of good practice.

11
English (US)
2. Symbols used in this document
3. Product description
3.1 Introduction
Grundfos pumps are carefully inspected and
tested before shipment. This pump should
provide long, efficient, trouble-free performance.
To ensure maximum performance and reliability,
please follow the simple instructions in this
manual.
When installing this pump, always follow basic
safety precautions and any federal, state, and
local requirements.
3.2 Delivery and handling
Examine the components carefully to make sure
no damage has occurred to the pump during
shipment. Take care to ensure the pump is NOT
dropped or mishandled; dropping will damage
the pump.
3.3 Pre-installation checklist
Before beginning installation procedures, the
following checks should be made. They are all
important for proper installation of the circulator
pump.
3.3.1 Applications
Model UP(S)15, 26, 43 and 50 series pumps are
generally designed to circulate water from +32
°F to +230 °F (0 °C to +110 °C) up to a
maximum pressure of 150 psi (10 bar). Some
models have temperature limitations which are
shown in Table A below. If required, a 50 % by
volume solution of ethylene or propylene glycol
and water can be used; however, a decrease in
pump performance may result due to an
increase in the viscosity of the solution. Check
with manufacturer for information regarding
suitability of pumping other liquids.
Closed systems
Model UP(S) 15, 26, 43 and 50 series pumps
with cast iron pump housings are designed to
pump water compatible with their cast iron
construction. They are recommended for use in
closed hydronic systems (i.e. airless, non-
potable water).
Open systems
Model UP(S) 15, 26, 43 and 50 series pumps
with stainless steel or bronze pump housings
are designed to pump water compatible with
their construction and can be used in both open
and closed systems.
3.3.2 Maximum water temperature
The maximum allowable water temperature is
determined by the ambient or surrounding air
temperature as shown in Table A.
WARNING
If these safety instructions are not
observed, it may result in personal
injury.
WARNING
If these instructions are not observed,
it may lead to electric shock with
consequent risk of serious personal
injury or death.
Caution
CAUTION
If these safety instructions are not
observed, it may result in malfunction
or damage to the equipment.
Note
Notes or instructions that make the
job easier and ensure safe operation.

12
English (US)
3.3.3 Inlet pressure requirements
The pressure required at the inlet of the pump is
a function of the temperature of the water as
shown in Table B.
In a pressurized system, the required inlet
pressure is the minimum allowable system
pressure.
In a system open to the atmosphere, the
required inlet pressure is the minimum distance
the pump must be located below the lowest
possible water level of the water source (tank,
pool, etc.).
Table A: Maximum water temperature
Ambient temperature +104 °F
(+40 °C)
+120 °F
(+48 °C)
+140 °F
(+60 °C)
+160 °F
(+71 °C)
+175 °F
(+79 °C)
Water temperature
All UP*
+230 °F
(+110 °C)
+220 °F
(+104 °C)
+210 °F
(+98 °C)
+190 °F
(+87 °C)
+175 °F
(+79 °C)
* Exceptions below:
UPS 15-35 +165 °F
(+73 °C)
+140 °F
(+60 °C) ---
UP 15-100F +205 °F
(+96 °C)
+195 °F
(90 °C)
+185 °F
(+85 °C)
+175 °F
(+79 °C) -
UP 26-120U +205 °F
(+96 °C)
+195 °F
(90 °C)
+185 °F
(+85 °C)
+175 °F
(+79 °C) -
UP 26-116 +150 °F
(+65 °C)
+140 °F
(+60 °C) ---
Table B: Minimum required inlet pressure
Water temperature 230 °F
(110 °C)
190 °F
(88 °C)
140 °F
(60 °C)
Inlet pressure in feet (m) 36 ft
(1.10 m)
9 ft
(2.8 m)
3 ft
(0.9 m)
Inlet pressure in psi (bar) 15.6 psi
(1.07 bar)
4.0 psi
(0.27 bar)
1.3 psi
(0.08 bar)

13
English (US)
4. Installation
4.1 Position of the terminal box
Proper installation of the pump will have the
terminal box located to one side of the pump or
the other, with the conduit entry down. See fig. 1.
Fig. 1 Recommended terminal box
orientation
4.2 How to change the terminal box
position
How to change terminal box position:
1. Remove the four (4) hex socket head screws
(4 or 5 mm wrench) while supporting the
stator (motor).
2. Carefully separate the stator from the pump
housing and rotate it to the correct terminal
box orientation.
3. Replace the hex socket head screws and
tighten diagonally and evenly (7 ft.-
lb.torque).
4. Check that the impeller turns freely. If the
impeller does not turn easily, repeat the
disassembly/reassembly process.
4.2.1 Pump mounting: for indoor use
When making pipe connections, be sure to
follow the pipe manufacturer's recommendations
and all code requirements for piping material.
Arrows on the side or bottom of the pump
housing indicate direction of flow through the
pump. Grundfos circulator pumps can be
installed in both vertical and horizontal lines.
The pump must be installed with the motor shaft
positioned horizontally.
Under no circumstances should the pump be
installed with the shaft vertical or where the
shaft falls below the horizontal plane.
See fig. 2.
Fig. 2 Acceptable pump mounting
positions
We recommend that isolating valves be installed
on each side of the pump. If possible, do not
install elbows, branch tees, and similar fittings
just before or after the pump. Provide support to
the pump or adjacent plumbing to reduce
thermal and mechanical stress on the pump.
4.3 Installation requirements
1. Thoroughly clean and flush the system prior
to pump installation.
2. Do not install the pump at the lowest point of
the system where dirt and sediment naturally
collect.
3. Install an air vent at the high point(s) of the
system to remove accumulated air.
4. Ensure that water does not enter the
terminal box during the installation process.
5. Open system: Install the pump in the supply
line; the suction side of the pump should be
flooded with water. Ensure that the static
head requirement from Table B is achieved.
6. Closed system: Install a safety relief valve to
protect against temperature and pressure
build-up.
7. If the water contains suspended particles, we
recommend that a strainer and/or filter be
installed and cleaned regularly.
4.3.1 Check valve removal
1. Use needle-nose pliers to remove check
valve from pump housing.
2. Check to make sure no part of the valve
remains in the pump housing.
3. Apply the enclosed round "Check Valve
Removed" label over the check mark symbol
located on the nameplate of the pump.
TM05 5563 3812
WARNING
If the terminal box position needs to
be changed, ensure that the power
supply is turned off and close the
isolating valves before removing the
hex socket head screws.
TM05 5564 3812
Do not start the pump until the system
has been filled.
Acceptable Not acceptable

14
English (US)
5. Electrical installation
The proper operating voltage and other
electrical information can be found on the
nameplate attached to the top of the motor.
Depending on pump model, the motor has either
built-in, automatic, resetting of thermal
protection or is impedance protected and in
either case does not require additional external
protection. The temperature of the windings will
never exceed allowable limits, even if the rotor is
locked.
Wire sizes should be based on the ampacity
(current-carrying properties of a conductor) as
required by the latest edition of the National
Electrical Code or local regulations.
Both the power and grounding wires must be
suitable for at least 194 °F (90 °C).
If rigid conduit is to be used, the hub must be
connected to the conduit system before it is
connected to the terminal box of the pump.
5.1 For all 115 V and 230 V models
5.1.1 Single-speed pump wiring
1. Connect the white/white electrical leads from
the circulator pump to the incoming power
leads with wire nuts or other approved
connectors.
2. Attach incoming grounding wire to either of
the green grounding screws.
Fig. 3 Wiring diagram for all 115 V and
230 V single-speed pumps.
5.1.2 Multi-speed pump wiring
1. Insert black conductor into terminal "L"
position.
2. Insert white conductor into terminal "N"
position.
3. Insert grounding conductor into terminal
" " position.
Fig. 4 Wiring diagram for 115 V and 230 V
multi-speed pumps*
* UP(S) 15 capacitor wire position 4 & 8;
UP(S) 26/43/50 capacitor wire position 2 & 4.
WARNING
All electrical work should be
performed by a qualified electrician in
accordance with the latest edition of
the National Electrical Code and local
codes or regulations.
WARNING
The safe operation of this pump
requires that it be grounded in
accordance with the National
Electrical Code and local codes or
regulations.
WARNING
The ground conductor should be a
copper conductor of at least the size
of the circuit conductor supplying
power to the pump. Minimum ground
conductor size is 14 AWG. Connect
the ground conductor to the
grounding point in the terminal box
and then to an acceptable ground.
WARNING
Do not ground to a gas supply line.
WARNING
For fig. 3, some pump models may
come with two access wiring ports
(cable entries) to the terminal box. To
ensure safe operation of your
installation, the enclosed terminal box
cap (blanking) plug MUST be inserted
into the unused wiring access port
(cable entry).
TM05 5565 3812TM05 5566 3812
Capacitor
Green
grounding
screws Ground
White
line
leads
12345678
Capacitor
Green
ground
Neutral
Line

15
English (US)
6. Startup
7. Operation
Grundfos domestic circulator pumps, installed
properly and sized for correct performance, will
operate quietly and efficiently and provide years
of service.
UPS model pumps are multispeed, and the
speed can be changed via a speed selector
switch located on the front of the terminal box.
UP models are single-speed.
8. Troubleshooting
8.1 Failure to operate
When UP and UPS 15, 26, 43, and 50 pumps
are first started, the shaft may rotate slowly until
water has fully penetrated the bearings.
If the pump does not run, the shaft can be
rotated manually. To accomplish this, switch off
the power supply, and close the isolation valves
on each side of the pump. Remove the indicator
plug in the middle of the nameplate. Insert a
small flat-blade screwdriver into the end of the
shaft, and gently turn until the shaft moves
freely. Replace and tighten the plug. Open the
isolating valves and wait 2 to 3 minutes for the
system pressure to equalize before starting the
pump.
9. Disposal
This product or parts of it must be disposed of in
an environmentally sound way:
1. Use the public or private waste collection
service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
Subject to alterations.
Caution
Do not use the pump to vent the
system.
Caution
Do not start the pump before filling
the system.
Caution
Never let the pump run dry.
Caution
Under no circumstances should the
pump be operated without water
circulation or without the minimum
required inlet pressure for prolonged
periods of time.
This could result in motor and pump
damage.
Note
After a long shutdown period, multi-
speed pumps should be started on
speed 3 and then adjusted to the
regular setting.
The UPS 15-42 has an automatic
function to assist in restarting.

Grundfos companies
GRUNDFOS Kansas City
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: [phone]
Fax: [phone]
www.grundfos.us
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GRUNDFOS Gulf Distribution
P.O.Box 16768
Jebel Ali Free Zone
Dubai
Phone: [phone]
Fax: [phone]
www.grundfos.uae
GRUNDFOS Canada
2941 Brighton Road
Oakville, Ontario L6H 6C9 Canada
Phone: [phone]
Telefax: [phone]
www.grundfos.ca
GRUNDFOS México
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
C.P. 66600 Apodaca, N.L. México
Phone: [phone]
Fax: [phone]
www.grundfos.mx

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