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Model
Connection
Size
Cord
Timer
Aquastat
Electrical Data
Weight
Astro 220SSU050S-TA
Sweat
½"
115 Vac, 60 Hz, 0.36 A, 43w
6.3 (2.9)
Astro 220SSU075S-TA
Sweat
¾"
115 Vac, 60 Hz, 0.36 A, 43w
6.3 (2.9)
Astro 225BS050S-TA
Sweat
½"
115 Vac, 60 Hz, 0.64 A, 75w
6.3 (2.9)
Astro 225BS075S-TA
Sweat
¾"
115 Vac, 60 Hz, 0.64 A, 75w
6.3 (2.9)
Astro 220SSU-TA
NPSM Union
1¼"
115 Vac, 60 Hz, 0.36 A, 43w
6.8 (3.1)
Astro 225SSU-TA
NPSM Union
1¼"
115 Vac, 60 Hz, 0.69 A, 83w
6.8 (3.1)
Astro 230SS-TA
2-bolt Flange
115 Vac, 60 Hz, 0.81 A, 97w
8.3 (3.8)
Astro 250SS-TA
2-bolt Flange
115 Vac, 60 Hz, 0.98 A, 117w
8.3 (3.8)
Astro 220SSU050S-T
Sweat
½"
---
115 Vac, 60 Hz, 0.36 A, 43w
6.3 (2.9)
Astro 220SSU075S-T
Sweat
¾"
---
115 Vac, 60 Hz, 0.36 A, 43w
6.3 (2.9)
Astro 225BS050S-T
Sweat
½"
---
115 Vac, 60 Hz, 0.64 A, 75w
6.3 (2.9)
Astro 225BS075S-T
Sweat
¾"
---
115 Vac, 60 Hz, 0.64 A, 75w
6.3 (2.9)
Astro 220SSU-T
NPSM Union
1¼"
---
115 Vac, 60 Hz, 0.36 A, 43w
6.8 (3.1)
Astro 225SSU-T
NPSM Union
1¼"
---
115 Vac, 60 Hz, 0.69 A, 83w
6.8 (3.1)
Astro 230SS-T
2-bolt Flange
---
115 Vac, 60 Hz, 0.81 A, 97w
8.3 (3.8)
Astro 250SS-T
2-bolt Flange
---
115 Vac, 60 Hz, 0.98 A, 117w
8.3 (3.8)
Astro 220SSU050S-LC
Sweat
½"
---
---
115 Vac, 60 Hz, 0.36 A, 43w
6.0 (2.7)
Astro 220SSU075S-LC
Sweat
¾"
---
---
115 Vac, 60 Hz, 0.36 A, 43w
6.0 (2.7)
Astro 225BS050S-LC
Sweat
½"
---
---
115 Vac, 60 Hz, 0.64 A, 75w
6.0 (2.7)
Astro 225BS075S-LC
Sweat
¾"
---
---
115 Vac, 60 Hz, 0.64 A, 75w
6.0 (2.7)
Astro 220SSU-LC
NPSM Union
1¼"
---
---
115 Vac, 60 Hz, 0.36 A, 43w
6.5 (2.9)
Astro 225SSU-LC
NPSM Union
1¼"
---
---
115 Vac, 60 Hz, 0.69 A, 83w
6.5 (2.9)
Astro 230SS-LC
2-bolt Flange
---
---
115 Vac, 60 Hz, 0.81 A, 97w
8.0 (3.6)
Astro 250SS-LC
2-bolt Flange
---
---
115 Vac, 60 Hz, 0.98 A, 117w
8.0 (3.6)
Note: All weights are in lbs. (kg)
INSTALLATION
WARNING:
Installation should only be completed by qualified personnel, in accordance with all applicable codes, and following
generally accepted installation practices.
Ensure the hot water supply is turned off before installation, to avoid personal injury or damage to property.
Read and understand these instructions thoroughly before beginning the installation.
CAUTION:
Prior to installation, flush all piping of any foreign material to prevent pump blockage and prevent damage.
PROCEDURE
1. Timer installation and wiring
Note:
Numerical component designations included in Steps a through i refer to circulator and timer components
shown in Fig. 1.
a. Unfasten the mounting screw (4A) and remove the terminal box cover (3).
b. Disconnect motor leads from the power supply.
c. Unfasten the mounting screw (4B) on the timer box cover (10) and detach it from the base (8).
d. Remove the original conductor (7A) from the circulator terminal box (2)
e. Fasten the connection adaptor (7B) to the circulator terminal box (2)
f.
Fasten the threaded fitting (6) to the connection adaptor (7B)
g. Fasten the lock nut (5A) on the end of the threaded fitting (6) and insert the timer box (8)
h. Fasten the lock nut (5B) onto the end of the threaded fitting (6) so the timer box (8) is in between and securely
attached.
i.
Connect timer lead wires (black, white and green) to the terminal box (See Fig. 2 for 24-Hour Timer wiring
diagram. See Fig. 3 for 24-Hour timer and Aquastat Control wiring diagram.)
j.
Re-attach the timer box cover (10) using the mounting screw (4B). Insure that all lead wires are inside the
timer assembly.
k. Close the terminal box cover (3) by fastening the mounting screw (4A).
