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A magnetite-resistant design, robust ceramic shaft, and
stainless-steel bearing plate ensure that the ALPHA2 26-99
reliably delivers the optimal system performance throughout
the years at the lowest possible energy consumption.
ALPHA1 26-99
ALPHA1 26-99 circulator pumps are remote-controlled via a
low-voltage 0-10 VDC signal by a system controller
integrated into a boiler or a building management
system. The pump requires a 0-10 V signal on the signal
port to control the speed of the pump. The pump will run at
its minimum speed if no signal is present or the signal fails.
A magnetite-resistant design, robust ceramic shaft, and
stainless-steel bearing plate ensure that the ALPHA1 26-99
reliably delivers the optimal system performance at the
lowest possible energy consumption throughout the years.
TM074717
ALPHA 15-55 HWR-D
ALPHA 15-55 HWR-D
The ALPHA HWR-D system is an on-command hot water
recirculation system for use in domestic hot water
applications. The system includes two push-buttons and
a temperature sensor (sensor is only included in the variant
for California, HWR-D CA).
A repeater that can extend the range of wireless control for
the push-button is also available as an accessory.
To prevent continuous operation, the pump stops
recirculating water when:
a) the media temperature measured at the temperature
sensor has increased by 10 °F (5.5 °C) or is higher than 102
°F (38.9 °C).
b) the pump has been operating continuously for more than
5 minutes, or for a total of 15 minutes during the last hour.
If the system is operated without the temperature sensor,
the pump will stop according to b).
ALPHA
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Product data