Grundfos Variable Speed
Circulator Pump
Pumps Incorporating the
VS, Variable Speed Control
Shipment
Inspection
1
.
Page 2
General
Page 2
2
.
Operational
Limits
3
.
Page 3
Pump
Installation
4
.
Page 4
Installation
Requirements
5
.
Page 5
Electrical
Page 5
6
.
Settings
Page 7
7
.
Quick
Reference
8
.
Page 9
CONGRATULATIONS!
You are now the fortunate owner of a Grundfos
Variable Speed PUMP. It has been carefully
inspected and tested before shipment. It should
give you long, efficient, trouble-free service. For
maximum performance and reliability, please
follow the simple instructions in this manual.
When installing and using this electrical equipment,
basic safety precautions should always be followed,
including the following:
The installer must ensure that this control and its
wiring are isolated and/or shielded from strong
sources of electromagnetic noise. Conversely, this
Class B digital apparatus complies with Part 15 of
the FCC Rules and meets all requirements of the
Canadian Interference-Causing Equipment
Regulations. However, if this control does cause
harmful interference to radio or television
reception, which can be determined by turning
the control off and on, the user is encouraged to
try to correct the interference by reorienting or
relocating the receiving antenna, relocating the
receiver with respect to this control, and/or
connecting the control to a different circuit from
that to which the receiver is connected.
CAUTION: The non-metallic enclosure does not
provide grounding between conduit connections.
Use grounding type bushings and jumper wires.
CAUTION: Improper installation and operation of
this control could result in damage to the equipment and possibly even personal injury. It is your
responsibility to ensure that this control is safely
installed according to all applicable codes and
standards. This electronic control is not intended
for use as a primary limit control. Other controls
that are intended and certified as safety limits
must be placed into the control circuit.
Page 1
1. Shipment Inspection
Check the contents of this package. Care should be
taken to ensure the pump is NOT dropped or
mishandled; dropping will damage the pump.
Grundfos Variable Speed Pump Package Includes:
• One Grundfos UP15-42 Variable Speed pump
with integral control or one Grundfos UP26
Variable Speed pump with integral control.
• One 6’ line cord with 115 V plug, pre-wired into
control unit.
• Two flange gaskets
• Installation and Operating Instructions.
2. General
• All minimum and maximum settings are
operating, not safety limits. Necessary auxiliary
equipment and safety devices must be added.
• Offset dial provides fine tuning for input signal.
• Manual % dial provides manual speed control.
• Range of signal is selected through dip switch
A.
• Type of signal used is selected through dip
switch B.
• Minimum speed at 0 or 15% is selected
through dip switch C.
• Speed control from external signal or manual
% dial is selected through dip switch D.
• Pump Exercising: After every three days of no
operation, the control will exercise the pump
for 10 seconds. The % Out LED will be on
during exercising.
• As variable speed output modulates, the
control flashes the % out LED on for ¼ second
and off for ¼ to 2 1/2 seconds.
• The % output is run at 100% for 3 seconds after
power up reset for all modes of operation.
Page 2
3. Operational Limits
Control Signal Input Range
Voltage signal range: 0-10V(DC) or 2-10V(DC)
Current signal range: 0-20mA or 4-20mA
Grundfos Variable Speed pumps are designed to pump
liquids compatible with their cast iron pump housing
construction. They are recommended for use in closed
hydronic systems. Grunfos Variable Speed pumps are
for Indoor Use Only.
Grundfos Variable Speed Pumps are intended for use
with water, or a 50/50 mixture by weight of propylene
glycol.
UP15-42F/VS 115V 60 Hz Variable Speed Pump
Maximum fluid temperature: 205°F (96°C)
Maximum ambient:
Maximum Working Pressure: 145 PSI
Minimum Inlet Pressure: 5 PSI
UP26-96F/VS 115V 60HZ Variable Speed Pump
UP26-64F/VS 115V 60HZ Variable Speed Pump
Maximum fluid temperature: 195°F (90°C)
Maximum ambient:
Maximum Working Pressure: 145 PSI
Minimum Inlet Pressure: 5 PSI
Page 3
• 115°F (46°C) with control module vertical
(Fig. 4a).
• 115°F (46°C) with control module under
pump and horizontal (Fig. 4B).
• 105°F (40°C) with control module on top of
pump and horizontal (Fig 4B).
• 105°F (40°C) with control module vertical
(Fig. 4A).
• 105°F (40°C) with control module under
pump and horizontal (Fig. 4B).
• 92°F (33°C) with control module on top of
pump and horizontal (Fig. 4B).
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