Features:

• Cast iron three-speed pump (115V-60Hz). Adjustable three-speed pump provides low rates across the range of SRCC OG-300 certified Solaray closed-loop glycol systems. Includes line cord for connection to differential controller.
• SunEarth differential controller, supplied with every SolarStation. Easy toread backlit LCD displays system operating temperatures at up to threelocations. Includes line cord from controller to 120V outlet, providing plugand play installation and operation.
• Compact insulated enclosure made of expanded polypropylene foam,designed for professional finished appearance and superior durability.Custom molded enclosure allows easy access to all piping connections.Removable cover is fitted around temperature gauges for convenient system performance monitoring.
• Combination brass ball valves and check valves with integrated thermometers,(32°F - 248°F scale). Valves are color coded - blue handle for supply to collectors, red handle for return from collectors. Spring check valve in supply and return ball valves. Check valves can be bypassed by turning the valve handle to the 45° position.
• Balancing Valve and Flow Meter (0.5 - 4 gpm). Visual reading of system flow with balancing valve for quick and easy optimization of system flow rate.
• Air separator with air vent. Air separator tube removes air from flow during pump operation. Air is separated from main _ow during system activation and maintenance, and can be expelled by opening air vent. Removal of air from flow reduces potential for air locks in system.
• Pressure relief valve with pressure gage and expansion tank connection. Pressure relief valve set to discharge at 145 psi. Pressure gage scale is 0 – 145 psi (0 – 10bar). Expansion tank connection is ¾” male BSP.
• Fill and drain valves with ¾” hose thread. Located upstream and downstream of the pump for filling, purging and draining the glycol loop.Compression fittings for ¾” Type L copper. Top two compression fittings to connect to collectors, bottom two to connect to heat exchanger in tank.