Installation and operating instructions Astro 2 circulator models File No: 10.89 Date: july 20, 2016 Supersedes: 10.
contents 1.0 Introduction 2 .0 Installing 2 .1 Terminal box 2 . 2 Electrical wiring 3 .0 Check valve removal (optional) 4 .0 Start up 5 .0 Installation troubleshooting guide 6.
i n sta l l at i on & o p era t i ng in str uction s Astro 2 circulator models 4 1.0 introduction warning • • • • • • • • Prior to installation, read these installation and operating instructions. Installation and operation must comply with local regulations and accepted codes of good practice. The use of this product requires experience with and knowledge of the product. Only licensed or trained installers should install this product.
Astro 2 circulator models i n sta l l a ti o n & o perati ng i nstr ucti o ns 5 The circulator shaft must always be in a horizontal position. (The piping can be in a horizontal or vertical run.) Isolation valves should be installed on the discharge and suction side of the pump to facilitate service. Wire shall be 14 to 16 gauge solid wire or 16 to 18 gauge stranded wire. To wire, loosen the screws from the terminal box cover and remove the screws and cover.
i n sta l l at i on & o p era t i ng in str uction s Astro 2 circulator models 6 4 .0 start up wa r n i n g These circulators are maintenance free. Self-lubricated by the system fluid, these circulators have no seal to leak or coupling to break. A proper installation practice recommends to thoroughly flush the system clean of all foreign materials prior to installing the circulator. Fill the system before starting.
Astro 2 circulator models i n sta l l a ti o n & o perati ng i nstr ucti o ns 7 fault possible cause remedy Pump stopped, no power Power supply interrupted • Check the power supply. Attach external power control if necessary. Fuse tripped or circuit breaker opened • Repair short-circuited wire. Repair loose contact. • Check for the properly rated fuse. • Check pump motor and lead. Thermal switch has actuated • Reduce ambient temperature. • Clean blocked or slow rotating pumps.
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