ProLine PL4800 Controller
CONTROLLER(S) shall be model PL4800 as manufactured by Weathermatic Sprinkler Division of Telsco Industries, or approved equal. Controller(s) shall be a four (4) program controller with hot swappable 12-zone modules to allow expansion to 48 zones.
OPERATION: Each program shall have eight independent start times, calendar schedules, watering budgets by month and a soak/cycle for varying soil percolation rates. Controller shall have two (second user assignable) pump start/ master valve position which shall be programmable to operate on demand from any selected zone. A programmable safety delay shall be included for zone to zone delay and master valve to zone delay for opening and closure. Controller shall have input for rain and freeze sensor devices. Use of the optional RFS5 Rain/Freeze Sensor shall incorporate the rain and freeze shutdown functions and shall incorporate a 48-hour delay after closure of the rain sense switch. Controller shall have self-diagnostic capabilities to detect “short” or “open” zones and the ability to display lists of faults on an LCD display for the user. Diagnostics shall also include LCD display of volt/amp readings by zone and for transformer output as well as backup battery reading. A chatter function shall also be provided to assist in locating buried valves. The controller shall automatically prevent master valve opening or pump start when the valve locator diagnostic is used. Display shall be backlit for clear viewing in all lighting conditions. Zone timing shall be settable from 1 minute to 9 hours and 55 minutes. All programs shall operate concurrently or in a stack sequence of start time operation. Program schedules shall include options for days of the week, odd date, even date or an interval of 1 to 30 days. A ‘no water’ window shall be available to inhibit daily operations of a program between two selected times on a given day; omission of up to 7 specified calendar dates or specific days of the week. Adjustments for leap year shall be automatic. Manual operation shall be provided by program, by station, or on a programmable test program with durations from ten (10) seconds to ten (10) minutes. The programmable test program shall also check for short and open conditions on each zone each time it is run. Non-volatile memory shall retain all programming and real-time clock shall be provided to maintain date and time.
CONSTRUCTION: Controller shall be enclosed in a U.L., CE and C-Mark Listed rainproof plastic enclosure with optional key lock. The enclosure shall be rated for outdoor or indoor use. Enclosure shall be a wall mount (pedestal mount) model with removable knockouts on the lower side and back of the housing for choice of wiring location. The operating panel shall be a totally enclosed module that is removable from the housing for programming at a separate location. A test post for 24V a.c. operation shall be accessible with or without the operating panel. Zone modules (SLM4) shall be self-contained modules that can be installed without turning off power to the unit and programming of new zones shall not be required. Module wiring connections shall be of the type that allows insertion of solid wires without any tool. Each module shall contain its own surge protection.
ELECTRIC: Controller shall be completely electric in operation. Controller shall be installed and wired in accordance with manufacturer’s published instructions. Controller shall be capable of operating from an independent power supply. Primary shall be 115V a.c. 60hz or 230V, 50hz.
WARRANTY: Controller shall have a manufacturer’s limited warranty of two (2) years.