ARMSTRONG Astro 2 3-speed circulator models User Manual

ARMSTRONG Astro 2 3-speed circulator models

Motor data

model| electrical input| speed| full load

amp draw (a)

| nominal

power (w)

---|---|---|---|---

astro 210ci/ss

|

115v, 60hz

Single phase

| 3| 1.72|

200

2| 1.50
1| 1.06

Astro 220ssu

| 3| 0.29|

33

2| 0.27
1| 0.20

astro 225ssu

| 3| 0.69|

83

2| 0.55
1| 0.43
astro 230ss/ ci/ci-r| 3| 0.81|

97

2| 0.58
1| 0.45
Astro 250ss/ ci/ci-r| 3| 0.98|

117

2| 0.79
1| 0.65

Astro 280ci/ss

| 3| 1.90|

218

2| 1.80
1| 1.50

astro 290ci/ss

| 3| 1.90|

218

2| 1.60
1| 1.40
astro 280ci/ss 230v|

230v,60hz

Single phase

| 3| 0.90|

210

2| 0.86
1| 0.80
Astro 286ci/ss| 1| 1.60| 375

Technical data

• Max. fluid temperature: 185°f/85°c (Astro 286 up to 1.35a) 50°f/65°c (Astro 286 over 1.35a)230°f/110°c (all others)
• Max. working pressure: 150 psi / 1034 kPa Certification: ETL listed for the US and Canada (conforms to ul std.778 certified to CSA std. c22.2 no.108-01) NSF 372 (for stainless steel models)

Since water conditions can vary with geographical location (i.e. amount and type of dissolved solids) it is recommended that the operating temperature o the fluid for open (potable) systems be kept as low as possible (i.e. below 150°f or 65°c) to avoid precipitation of calcium.

Materials of construction

Pump body:

• Cast iron (closed system)
• Stainless steel** (open system)

Impeller: Noryl
Shaft: Ceramic
Bearings: Ceramic
Gasket: EPDM
Certified <0.25 weighted average percent lead (NSF 372) and complies with California Health and Safety code section 116875 (commonly known as ab1953).

Dimensions and weights

**stainless steel*| | a| | b| | c| | d| e| f| connection type & size| weight
---|---|---|---|---|---|---|---|---|---|---|---|---
Astro 220ssu| 6.00 (152)| 5.00 (127)| 4.00 (102)| —| 3.10 (79)| —| Union – 1¼” npsm| 6.5 (2.9)
Astro 225ssu| 6.00 (152)| 5.00 (127)| 4.00 (102)| —| 3.10 (79)| —| Union – 1¼” npsm| 6.5 (2.9)
Astro 230ss| 6.38 (162)| 6.00 (150)| 4.00 (102)| 4.00 (102)| 3.10 (79)| 3.25 (80)| Flange – (2) ½” dia. bolt holes| 8.0 (3.6)
Astro 250ss| 6.38 (162)| 6.00 (150)| 4.00 (102)| 4.00 (102)| 3.10 (79)| 3.25 (80)| Flange – (2) ½” dia. bolt holes| 8.0 (3.6)
Astro 210ss| 6.50 (165)| 7.25 (184)| 4.87 (124)| 4.00 (102)| 3.60 (91)| 3.13 (80)| Flange – (2) ½” dia. bolt holes| 10.1 (4.6)
Astro 280ss (230v)| 6.50 (165)| 6.75 (171)| 4.87 (124)| 4.00 (102)| 3.60 (91)| 3.13 (80)| Flange – (2) ½” dia. bolt holes| 10.1 (4.6)
Astro 286ss| 6.50 (165)| 6.38 (162)| 4.87 (124)| 4.00 (102)| 3.60 (91)| 3.13 (80)| Flange – (2) ½” dia. bolt holes| 10.1 (4.6)
Astro 290ss| 8.50 (216)| 6.65 (169)| 5.20 (132)| 4.00 (102)| 3.60 (91)| 3.45 (88)| Flange – (2) ½” dia. bolt holes| 13.2 (6.0)
cast iron| | a| | b| | c| | d| e| | f| connection type & size| weight
Astro 230ci| 6.38 (162)| 6.00 (150)| 4.00 (102)| 4.00 (102)| 3.10 (79)| 3.25 (80)| Flange – (2) ½” dia. bolt holes| 8.0 (3.6)
Astro 230ci-r| 6.38 (162)| 5.63 (137)| 4.00 (102)| 4.00 (102)| 3.10 (79)| 3.25 (80)| Flange – (2) ½” dia. bolt holes| 8.0 (3.6)
Astro 250ci| 6.38 (162)| 6.00 (150)| 4.00 (102)| 4.00 (102)| 3.10 (79)| 3.25 (80)| Flange – (2) ½” dia. bolt holes| 8.0 (3.6)
Astro 250ci-r| 6.38 (162)| 5.63 (137)| 4.00 (102)| 4.00 (102)| 3.10 (79)| 3.25 (80)| Flange – (2) ½” dia. bolt holes| 8.0 (3.6)
Astro 210ci| 6.50 (165)| 7.25 (184)| 4.87 (124)| 4.00 (102)| 3.60 (91)| 3.13 (80)| Flange – (2) ½” dia. bolt holes| 10.1 (4.6)
Astro 280ci (230v)| 6.50 (165)| 6.38 (162)| 4.87 (124)| 4.00 (102)| 3.60 (91)| 3.13 (80)| Flange – (2) ½” dia. bolt holes| 10.1 (4.6)
Astro 286ci| 6.50 (165)| 6.38 (162)| 4.87 (124)| 4.00 (102)| 3.60 (91)| 3.13 (80)| Flange – (2) ½” dia. bolt holes| 10.1 (4.6)
Astro 290ci**| 8.50 (216)| 6.65 (169)| 5.20 (132)| 4.00 (102)| 3.60 (91)| 3.45 (88)| Flange – (2) ½” dia. bolt holes| 13.2 (6.0)

note: All dimensions are in inches (mm) and weights in lbs (kg).

• Certified <0.25 weighted average percent lead and complies with California Health and Safety Code Section 116875 (commonly known as ab 1953).
• Removable check valve installed at the pump outlet.

Cross-reference table

note: 1 Dimension and connection may vary.

• Flange orientation may vary.
• Supply voltage may vary.
• Connection with ½” sweat adaptor(s). 5 Connection with ¾” sweat adaptor(s).

1. S1 Speed 1.
2. S2 Speed 2.
3. S3 Speed 3.

Performance curves

Astro 225ssu

buffalo: +1 716 693 8813
Bangalore: +91 80 4906 3555
Shanghai: +86 21 5237 0909
Armstrong fluid technology was established 1934

Documents / Resources

| ARMSTRONG Astro 2 3-speed circulator models [pdf] User Manual
Astro 2, circulator, 3-speed circulator
---|---

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>