Grundfos UP Series User Manual

4. Electrical installation
WARNING
Electric shock
Death or serious personal injury
‐ Switch off the power supply before
you start any work on the product.
Make sure that the power supply
cannot be switched on accidentally.
WARNING
Electric shock
Death or serious personal injury
‐ 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
Electric shock
Death or serious personal injury
‐ The safe operation of this pump
requires that it be grounded in
accordance with the National
Electrical Code and local codes or
regulations.
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.
Do not ground to a gas supply line.
For wiring of all 115 and 230 V single-
speed pumps, 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).
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 must 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).
The terminal box of the pump is intended for
connection to flexible conduit only, and not for
rigid conduit.
4.1 For all 115 V and 230 V models
4.1.1 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.
1
2
3
4
Wiring diagram for all 115 V and 230 V single-
speed pumps
Pos. Description
1 Green grounding screws
2 White line leads
3 Ground
4 Capacitor
9
English (US)

Grundfos UP Series Specifications

General

Maximum Operating Pressure	10 bar
Motor Type	Permanent magnet motor
Power Supply	Single-phase
Connection Type	Threaded
Voltage	230V
Frequency	50/60 Hz
Max Ambient Temperature	+40°C
Motor Protection	Thermal protection