STANDARD DUPLEX DOSE ON DEMAND CONTROLS
Designed to operate dual pumps for residential and light commercial dose on demand systems up to 2 HP single phase and 5 HP three phase. Duplex pump systems are used when immediate backup for a failed pump is desired. In the event one pump fails, the second pump will activate upon rising water level and provide simplex operation until the failed pump is repaired. The amount of storage above alarm may be reduced since the second pump is readily available. Pumps are alternated as lead pump after each pumping cycle to provide even pump wear. Each unit operates on either two float (one differential, one narrow angle) or three float (narrow angle) switches for pump control, plus one (narrow angle) float switch for alarm indication (if desired). Alarm indication may be combined with lag pump float switch for immediate pump failure notification, or separated for applications where heavy flows are expected and not desired to be alarmed. See "D" series for details.
You name it, we'll build it! That's our motto at the American On-Site Controls Custom Design Shop, and you'll appreciate our ability to turn your ideas into reality no matter how simple or complex they may be. Combination controls are frequently required for those tough on-site problems. We make a variety of custom controls which combine various pump applications within the same system to make an economical and easy to manage control system. Our considerable inventory of standard components provides rapid turn around to most special requirements. Large sewage controls up to 100 HP, bubbler and/or transducer based control systems, variable speed drives, and programmable logic controllers are just a few examples of our capabilities. Call 1-800-345-3132 for more details and pricing.
SIMPLEX AND DUPLEX - TIMER BASED CONTROLS
American Manufacturing has developed a series of timer based control systems specifically designed to meet the varying needs of the On-Site industry to control the flow of wastewater and to provide reliable notification of equipment failure at the same time. Utilizing timing relays and cycle counters, these systems are excellent for managing and monitoring the daily flows to drain fields with limited capacities. Most units operate on four differential (wide-angle) float switches, three for pump control plus one float switch for alarm indication. Duplex pumps are alternated after each pumping cycle to provide even pump wear, and it is recommended that they be provided with a pump fail alarm circuit so that pump failures can be detected and corrected before both pumps have failed. Most time based controls are provided with timer override float switch terminals with selective function capability to manage excess water use due to leaky tanks or peak flow events. The "Timer Override" switch can be set in one of three positions. It can be left off to leave the timer override feature out of service. It can be placed in the pump and alarm position, whereupon energization it will pump down the tank by the tether of the float switch and activate the audio/visual alarm. The alarm will remain activated only for the length of time that the pump is running, providing an intermittent alarm and therefore indicating excess water use. Finally, it can be placed in the pump only position, pumping the tank down without activating the audio/visual alarm. A cycle counter is provided with the override circuit so that in all three positions an indication of the frequency of timer override events is available. Sand filter high level and aerator fail circuits are available on panels for Recirculating Sand Filter or ATU systems.
"SEQ", "SEPR" AND "DEPR" CONTROLS
This series of panels is typically used when short repeated cycles of pump events are desired. They are designed to provide flow equalization and are ideal to signal an alarm condition for excess wastewater flow. The "SEQ" is the minimum timer panel available, and does not include the timer override circuit. The standard "SEPR" and "DEPR" repeat cycle ("R" series) timed dose panels are configured with one repeat cycle timer for evenly spaced timed dosing from 1 minute to 10 hour intervals. Standard units are designed to operate single or duplex pumps for residential and light commercial flow equalization systems up to 5 HP, single and three phase. Larger controls up to 100 HP are also available upon request. This series of controls is slightly less expensive than the "SET" and "DET" series and provides much less utility.
"SEPRT" AND "DEPRT" CONTROLS
This series of panels is typically used when longer cycles or time of day pump events are desired. They are designed to provide flow equalization and are ideal to signal an alarm condition for excess wastewater flow. The standard "SEPRT" and "DEPRT" time of day ("T" series) timed dose panels are configured with a 24-hour time clock and pump run timer for selective interval dosing, or for evenly spaced timed dosing. Pump events can be set to occur as frequently as every 1/2 hour, in 15 minute increments, or as infrequently as once every 24 hours. Standard units are designed to operate single or duplex pumps for residential and light commercial flow equalization systems up to 5 HP, single and three phase. Larger controls up to 100 HP are also available upon request.
MULTIPLE PUMP OR ZONE - TIMER BASED CONTROLS
As with the simplex and duplex timer based control systems, the multiplex systems are ideal for managing and monitoring daily flow of wastewater, but are intended for use in larger commercial and industrial systems. The multiplex systems contain many of the same features found in the smaller systems but are typically micro-processor controlled to allow for a greater amount of flexibility. Any combination of pumps and/or zone valves may be left out of service, at the flip of a switch, without affecting the sequence. Pump and/or zone valve fail circuits allow for easy detection and alarm of failed equipment or lines. The space-saving micro-processor based control utilizes a door mounted keypad for easy, user friendly data entry and collection. Standard programs can be customized to meet your specific application. Hard wired relay type controls are also available upon request. Call factory for details and pricing information.
"MET" MULTIPLEX EQUALIZATION CONTROLS
This series of controls are typically used on larger or multiple zoned systems when longer cycles and time of day pump events are desired. They are designed to provide flow equalization and are ideal to provide an alarm condition for excess wastewater flow. The standard "MET" time of day ("T" series) timed dose panels are configured with a 24-hour time clock and pump run timer for each pump for selective interval dosing or for evenly spaced timed dosing. Time enabled dosing can occur as frequently as every half hour in 15 minute increments, or as infrequently as once every 24 hours. The control will allow a pump (or zone) to be taken out of service without interfering with the operation of the other zones or creating nuisance alarm conditions. Standard units are designed to operate multiple pumps for light and heavy commercial flow equalization systems, up to 100 HP, single and three phase.
"MT" MULTIPLEX TIMED DOSE ON DEMAND CONTROLS
This series of controls is recommended when larger systems with multiple zones are used and minimum wastewater storage is available. The units are designed to operate more than two pumps for residential and light commercial dose on demand systems, single and three phase. These dose on demand panels are configured with an adjustable run timer for each pump. This type of timer control is typically used to provide a measured flow to unequal sized zones where flow equalization is not required. Each pump dose can be individually set by adjusting the pump run timers. Each unit operates on four (differential) float switches, three for pump control, plus one float switch for alarm indication. The full dosing volume is determined by the distance between the "Pump Off" and "Pump On" float switches. The pumps are alternated after each individual timed pumping cycle until the full specified dosing volume has been pumped. "Lag Pump" float terminals are provided for heavy flows, and the control automatically rotates the lead pump past the lag pump on the next cycle so that it is not dosed twice. This series of controls can also be configured for multiple zone valves rotating in sequence with each pump, time dosing as described above. These zone valves can be electro-mechanical rotating ball valves, or hydraulically actuated solenoid valves. Standard units are designed to operate multiple pumps for light and heavy commercial non timed demand dose systems, up to 100 HP, single and three phase.