ProLine PL1624 - Irrigation Control Weathermatic - Free user manual and instructions
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| Product Type | Irrigation Controller |
| Brand | Weathermatic |
| Model | ProLine PL1624 |
| Number of Stations | 24 |
| Power Supply | 120 VAC, 60 Hz |
| Transformer Rating | 1.5 A, 24 VAC output |
| Dimensions (W x H x D) | 12.5 x 8.5 x 3.5 inches |
| Weight | 3.2 lbs |
| Enclosure Rating | NEMA 3R (indoor/outdoor) |
| Display Type | LCD with backlight |
| Programming Capacity | 3 independent programs (A, B, C) |
| Maximum Run Time per Station | 6 hours |
| Rain Sensor Compatible | Yes, normally closed |
| Manual Operation | Yes, manual start and seasonal adjustment |
| Watering Days | Custom, odd/even, or cyclic |
| Non-Volatile Memory | Retains programs during power loss |
| Operating Temperature | 32°F to 140°F (0°C to 60°C) |
| Safety Features | Short-circuit protection on valve outputs |
| Spare Parts Availability | Transformer, faceplate, knobs, terminal blocks |
| Warranty | 5 years limited |
Frequently Asked Questions - ProLine PL1624 Weathermatic
How do I set the current time on my ProLine PL1624?
Turn the dial to SET TIME. Use the + and - buttons to adjust hours and minutes. Press ENTER to save.
What should I do if a station won't turn on?
Check the wiring at the controller and valve. Ensure the station is programmed with a run time. Test manually: turn dial to MANUAL, select station, and press START. Also verify the rain sensor is dry.
How can I set different watering schedules for different zones?
Use the three independent programs A, B, and C. Assign each station to a program during programming. Set start times and run times per program.
Can I connect a rain sensor?
Yes, connect a normally closed rain sensor to the SEN terminals. When the sensor is active, it will override all watering. Refer to manual for wiring details.
What does 'NO AC' mean on the display?
The controller has lost AC power. Check the power cord and outlet. The backup battery will maintain the display, but watering will stop until power is restored.
How do I adjust watering duration seasonally?
Turn dial to SEASONAL ADJUST. Use the +/- buttons to set a percentage from 0% to 200%. This scales run times globally without changing each station.
What is the maximum run time per station?
The maximum run time is 6 hours per station. If you need longer, you can create multiple start times for the same station.
How do I reset the controller to factory defaults?
Turn the dial to OFF, then press and hold the + and - buttons simultaneously for 5 seconds until the display shows 'rESEt'. Release and confirm.
Can I wire a master valve or pump start relay?
Yes, connect a master valve or pump to the M terminal. It will activate whenever any station runs. Ensure the total load does not exceed 24 VAC, 1.5 A.
Why is my display showing 'BAT'?
The internal backup battery is low. Replace the 9V alkaline battery located in the battery compartment on the rear of the faceplate to maintain programs during power outages.
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