Product Overview
key benefits
key features
Broad operating range, producing up to 20 feet of
head or 20 USgpm flow
Design Envelope technology with Sensorless
demand–based control
Design Envelope ecient motor technology and
intelligent variable speed operation
Accepts 0-10v dc external control for modern
equipment that controls water flow
Five different modes of operation provide
versatility to cover the performance of a wide
range of fixed and variable speed circulators
Easy access to the terminal block for wiring
the most controllable circulator
on the market replaces 68 total
competitor circulators
Compass Stainless Steel (Model No. 180203−687)
grundfos wilo
alpha 15-55s
up 26-99bfc
up 15-29sf
ups 15-35sfc
ups 15-55sfc
ups 26-99bfc s1
ups 43-44bfc s1
stratos eco
16 bfx
star 5 bfx,bu
star 8 bs 5,7
star 16 bfx
star 21 bfx
star s 16 bfx
star s 21 bfx
taco b&g armstrong
005-sf2-ifc2
007-sf5-ifc
008-sf6-1-ifc,
bc6
00r-bf6-ifc
0015-mssf3-ifc
0015-mssf3-1-ifc
113 b4
nbf,ssf-12
nbf,ssf-22
nbf-25 s1,s2
pr series ab
series 100ab
astro 230ss
h-41
grundfos wilo
alpha 15-55
ups 15-42f
ups 15-58fc
ups 26-99fc s1
ups 43-44fc s1
up 15-10f
stratos eco
16 rfc
start 5fx
star 16 f
star 21 f
star s 16fx
star s 21fx
Compass Cast Iron(Model No. 180203−686)
taco b&g armstrong
vr1816
007e
005-f2-2-ifc
006-f7-ifc
007-f5-8-ifc
008-f6-1-ifc
00r-f6-ifc
0015-msf3-ifc
0015-msf3-1-ifc
113
ecocirc auto
ecocirc vario
nrf-9f,lw
nrf-22
nrf-25 s1,s2
pr series
series 100
astro 230ci
h-41
grundfos wilo
up 15-18buc 5,7
up 15-29su
ups 15-35suc
up 15-42buc5,7
star 5 bu
star 11 bu
Compass Stainless Steel Union (Model No. 180203−684)
taco b&g armstrong
006-b4,bc4,
bc4-1
nbf-8s,lw
nbf,ssu-9u,lw
nbf-10s,lw
nbf,ssu-12u,lw
nbf-18s
nbf,ssu-22u
astro 220ssu
astro 225ssu
Energy upgrade for the most popular circulators installed
in North America.
The front-mounted terminal block reduces installation time.
Exclusive Quadratic Sensorless algorithm intelligently adapts to
system demand to provide superior energy savings.
Up to 25% more energy savings vs. the competing ecm
straight line algorithms.
Up to 80% more energy savings than traditional fixed speed
circulators.
Lowest installed cost - Design Envelope variable speed technology
eliminates the need for valves to control flow.
Energy saving with 0-10v dc control capability.
Union models are fully interchangeable
with competitors
Variable
speed
Variable
speed
Bolded models are
a direct bolt-in
replacement, no pipe
changes are required.