ALPHA2 Data Sheet

Applications
UP Series
5
39
MixiMizer™ - mixing reset pump
The Grundfos MixiMizer™ is a fully integrated injection
mixing pump utilizing indoor/outdoor control. Water of
an appropriate temperature will be supplied to your
mixing loop through adjustments in pump speed based
on outdoor temperatures and supply/return piping
sensors.
Equipped with a weather-responsive controller, also
known as an indoor/outdoor controller or reset
controller, the MixiMizer™ automatically calculates
and controls mixed water temperatures according to
outdoor temperatures in primary/secondary piping
systems. The controller also provides pump exercising
for 10 seconds every three days and a 20-second
post-purge when the heat demand ceases.
For maximum design flexibility, the MixiMizer™ can be
integrated into a thermostat or zoning control system
through the user-selectable "external call for heat/
demand input".
A fully serviceable check valve integrated into the
pump housing eliminates ghost flows in primary/
secondary injection systems and zone applications.
LEDs located on the terminal box are designed to
indicate performance and diagnose faults without
tools.
Other standard user-selectable features include boiler
protection, system/slab "overtemperature" control and
a 5 °F (2.78 °C) parallel shift of the heating curve.
Fig. 6 MixiMizer™
MixiMizer™ models include the following features:
• Two water temperature sensors (system supply and
return), prewired, 8 ft (2.4 m) each
• line cord, 6 ft (1.8 m), prewired
• one outdoor air temperature sensor
• two flange gaskets
• optional zone control input
• optional boiler On/Off output.
Standard features
• Variable-speed output modulation
• system supply temperature sensor 140 °F (60 °C)
max.
• boiler return temperature sensor 135 °F (57 °C) min.
• heating curve adjustment by 5 °F (2.78 °C) in
parallel
• pump exercising every three days of no operation.
Fig. 7 Family curves for MixiMizer™
TM04 9735 5110
TM03 8844 0813
Pos. Description
a Min. curve for all models
b Max. UP 15-42 BUC5
c Max. UP 15-42 BUC7
d Max. UP 15-42 FC
0 2 4 6 8 10 12 14 16 18
Q [US GPM]
0
2
4
6
8
10
12
14
16
[ft]
H
0
1
2
3
4
5
[m]
H
0 1 2 3
Q [m³/h]
a
d
c
b