Astro Express Hot Water Recirculation

Overview

As more municipalities move towards water conservation policies, there’s a growing demand for product solutions that save water. The Astro Express Hot Water Recirculation System does just that. An average family wastes over 12,000 gallons of water per year waiting for hot water to arrive at the tap. By recirculating the hot water, the Astro Express system provides instant hot water at the tap, and eliminates the need to waste cold water, waiting for hot water.

The system also provides improved convenience to consumers who have already installed water-saving showerheads and other conservation tools. As beneficial as those tools are to the environment, they cause even longer wait times for hot water, creating a real demand for hot water recirculation solutions.

Design Features

The Armstrong Astro Express system delivers hot water to the tap, recirculating cooled water back to the water heater via existing cold water piping. In addition to providing the homeowner instant hot water access, the system also helps to conserve municipal drinking water resources and save metered water charges. It’s easy to install, and does not require special return piping to the water heater. This makes the Astro Express system the ideal retrofit solution for existing residential buildings, and a cost-effective solution, when offered as an option in new home construction.

Instant hot water at every tap.
Homeowners need a dependable system that’s inexpensive to install, easy to use, and heats their water to just the right temperature - every time.

The Astro Express Hot Water Re-circulation System offers dependability that keeps your customers satisfied, plus thoughtful design and industry-leading quality that minimize maintenance.

Value Features

• Sturdy construction: Forged brass housing
• Integrated mounting supports for easy, lush installation
• Simple screw adjustment for low setting preference
• Ratings: 125 psi (862 kPa) / 150ºF (66ºC)
• Bidirectional hot and cold connections in 3/8” and 1/2” ensure easy installation in a wide variety of applications.
• Large, self-cleaning screen prevents clogging

Circulator Features

• 24-hour clock timer
• 15 minute user selectable intervals
• On/Off/Auto switch
• 120Vac, 1/25 HP, .5A
• 5 ft power cord
• Max head: 5.8 ft
• Max low: 11.5 GPM
• Brass full unions
• EPDM O-rings
• 1 male and 2 female ¾” tailpieces
• Wet rotor design ensures virtually silent operation
• Bronze housing for potable water use
• High starting torque overcomes mineral build-up
• Built for durability with bronze casing, stainless steel shaft and graphite bearings

Typical Specifications

Astro Express System

Furnish and install, as shown on plans and in accordance to manufacturer's installation instructions, the Armstrong Astro Express System.

The system circulator shall:

1. Be of a canned, wet –rotor, system lubricated design for virtually silent, maintenance-free operation.
2. Be of cast bronze volute construction with wetted components suitable for potable water.
3. Be capable of providing max head of 5.8 ft (1.7 m) and max flow of 11.5 GPM (0.73 L/s).
4. Include gasket type half unions.
5. Include 2 female and 1 male tailpieces to suit 3/4” threaded pipe connections.
6. Include an integral 120V, 60Hz, 1/25 HP motor, with line cord.
7. Include an integral 24 hour mechanical timer, with independently selectable 15 minute operating intervals.
8. Include an integral on/off/auto switch to enable automatic timed operation, with manual over-ride.

The system valve shall:

1. Be of forged brass construction with wetted components suitable for potable water.
2. Include 1/2” male threaded inlet and 3/8” male threaded outlets for hot and cold water connections.
3. Include a thermostatic element to enable/disable flow into the cold water side, depending on water temperature.
4. Include a self-cleaning filter screen to avoid valve plugging with particulate often found in residential water supply.
5. Include a screwdriver adjustment to regulate enabled flow, to avoid excess hot water injection into the cold water side.

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