UP/UPS Pumps Product Guide

Applications
UP Series
5
42
Installation
The pump must always be installed with the motor
shaft in horizontal position. See fig. 3.
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.
UP(S) pumps can be installed in both vertical and
horizontal lines.
UP(S) pumps are intended for indoor use only.
Fig. 3 Acceptable pump positions
Motor
The motor is a 2-pole, asynchronous, squirrel-cage
PSC (permanent split capacitor) motor with UL, CUL,
ETL and CSA approvals.
UP(S) pumps are available in single-phase 115 V and
230 V versions with one or three speeds.
The terminal box is easily accessible and has
functional cables connecting conductors or terminals.
Insulation class(es): F, H.
The motor incorporates thermal overload or
impedance protection. Therefore, no external motor
protection is required.
UP models are single-speed pumps.
UPS model pumps are multi-speed pumps, and the
speed can be changed by means of a speed selector
switch located on the front of the terminal box.
To access the speed selector switch for UPS 15-35
and 15-55 TLC models, first remove the timer box lid.
UP models with VS or MR suffixes are variable-speed
pumps with integrated control.
Depending on the pump model, motor horsepowers
range from 1/25 to 1/6 and power consumption from 5
to 385 W.
Pumped liquids
Depending on the type, Grundfos circulator pumps are
designed for the following liquids:
• Potable water
• non-potable water
• water-glycol mixtures
• chilled water
• domestic hot water
• softened water.
If the circulator pump is used for a glycol mixture with a
higher viscosity than that of water, the hydraulic
performance of the pump will be reduced.
Example: 50 % glycol at 68 °F (20 °C) means a
viscosity of approx. 10 cSt and a reduction of pump
performance by approx. 15 %.
When selecting a pump, the viscosity of the pumped
liquid must be taken into consideration.
TM04 5058 2509