ALPHA2 Data Sheet

Table Of Contents
Applications
UP Series
5
37
ALPHA2
The Grundfos ALPHA2 is the next generation of
energy-efficient wet-rotor circulator pumps. By
incorporating a permanent magnet motor design,
power consumption is now reduced by a minimum of
50 %.
With the AUTO
ADAPT
feature, ALPHA2 will
automatically analyze the system demands and adjust
head and/or flow rate requirements to meet changing
heating demands.
Fig. 3 ALPHA2
Standard features
Stainless steel or cast iron construction
permanent magnet motor design
easy push-button hydraulic selection
seven hydraulic selection options:
– three fixed speeds
– three constant pressures
– AUTO
ADAPT
easy-to-read LED display
– flow rate indicator (gpm)
– power consumption (watt)
– hydraulic selection
nut capture flange
metallurgical options
– cast iron (F or FR)
– stainless steel (F)
line cord or conduit connection options.
Maximum operating pressures
Maximum operating temperatures
Note: The maximum glycol concentration with clean
water is 0 % glycol @ 36 °F (2 °C). A hydraulic
performance change can be expected.
Fig. 4 Family curves for ALPHA2, all models (ALPHA2 is
a variable-speed pump with AUTO
ADAPT
)
TM06 7558 4016 / TM06 7586 4016
Liquid temperature Min. inlet pressure
167 °F (75 °C) 0.75 psi (0.05 bar)
194 °F (90 °C) 4.06 psi (0.28 bar)
230 °F (110 °C) 15.7 psi (1.08 bar)
Ambient temperature Liquid temperature
[°F (°C)] Min. [°F (°C)] Max. [°F (°C)]
+32 (0) +36 (+2) +230 (+110)
+50 (+10) +50 (+10) +230 (+110)
+68 (+20) +68 (+20) +230 (+110)
+86 (+30) +86 (+30) +230 (+110)
+95 (+35) +95 (+35) +194 (+90)
+104 (+40) +104 (+40) +158 (+70)
TM06 7989 4316