Nelson 5700, 5750 - Electronic Water Timer Manual

Important Safety Information

• This timer is not for use inside buildings.
• Use fabric reinforced hoses only – damaged or cracked hoses should be replaced and not used.
• The timer should not be used in damp pits or under earth's surface.
• Mount the timer in a vertical position only.
• Check connections regularly for tight sealing.
• The hose should not be pulled since connections and the housing could be damaged.
• When using for the first time, observe progress of the program for one week to ensure the unit is operating properly.
• Before a long absence, such as a vacation, insert new batteries and test your program.
• When storing, make sure the unit is completely empty of water and in a frost-free environment only. Remove the batteries.
• Use alkaline batteries only, size C. Do not use rechargeable batteries.
• Use original accessories only.

These units are not intended for inside use, i.e., offices, apartments or houses, nor for professional watering applications.

Detach timer from faucet during freezing weather. This product is intended for outdoor watering only. Do not use with water exceeding 100°F(38°C) or with pressures exceeding 100 psi. Avoid excessive pulling or tugging on the hose as damage to timer may result.

Operating Controls

1. Water connection
2. Battery compartment
3. Hose connector
4. Display for Model 5750
5. Control panel
6. Delay key for programming
7. Duration key for programming
8. Water Days key for programming
9. Program Review key
10. Manual Open/Close key
11. Housing cover (5750)

Specifications

Inserting & Replacing Batteries

• Use Alkaline batteries only, size C. Do not use rechargeable batteries.
  
• Before every battery change, turn off the timer's water supply at your outdoor faucet and then remove it from the faucet.
• Open battery compartment and insert them in accordance with the markings in the compartment.

Replacing batteries:
When batteries in either model are exhausted, the 5700 LED will flash, the 5750 LCD will show it. Timer will close the water valve and will no longer follow watering instructions.

Automatic Delay:
After you have completed programming your first watering cycle, the timer will delay for a period of 10 seconds. The timer display will clear and show 'Cycle 2', (5750 only) indicating that your first program has been accepted, and the second cycle may now be programmed. The automatic delay will occur again after you have programmed cycle two.

Installation

Now that your timer is programmed, it is time to install the unit to your faucet.

1. Holding the unit steady, screw the collar ontothe faucet until it is finger tight. DO NOT use a wrench or pliers.
   
2. Attach a garden hose to the connection on the bottom of the unit. Makes sure there is a good washer in the hose fitting.
3. Make sure timer valve is closed. Turn on the water at the faucet. Your timer will now water automatically.

Reset

Press DELAY and WATER DAYS keys at same time and hold 4 seconds. Release the keys, and view 'PRGM' on 5750 display or a flash on the 5700 indicating unit is reset.

Delay

Press DELAY key to delay start time. Each press delays start time 1 hour from current time, up to 20 hours from now. Note: This unit does not contain a clock. Watering start time is set from current time.
If you exceed the 20 hours, the delay will 'rollover' to one hour and the timer will accept more key presses.

Duration

Press DURATION key to set watering time. On the 5700, each press will increase duration 15 minutes, up to 4 hours. On the 5750, each press will increase watering duration 1 minute up to 30 minutes and 15-minute increments from 30 minutes to 4 hours.

Note: You must press this key at least once to have a valid program, otherwise the timer will flash continuously or display 'ERR'.

If you exceed the 4 hour maximum, the time will 'rollover' to 15 minutes (5700), or 1 minute (5750), and timer will continue to accept more key presses.

Water Days

If you do not press the WATER DAYS key, the program entered will water today only. If you press WATER DAYS once, program will execute every day, if you press twice every other day, and if you press three times every third day. Schedule will be repeated automatically until you turn off the faucet or until batteries are exhausted.

Pressing the WATER DAYS key more than three times will cause timer to 'rollover' to water today only. Additional presses will program as explained above.

Cycle 2 and Program Acceptance

Wait 10 seconds after the last key stroke. On 5700 light will flash indicating program is accepted. On 5750 timer display changes to 'CYCLE 2'. If you do not need an additional watering cycle, wait 10 seconds and display will change to 'AUTO'.
To program cycle two, wait 10 seconds after last key stroke in cycle one. Timer display will show 'CYCLE 2'. Continue programming second cycle as you did the first.

Wait 10 seconds for the unit to accept cycle two program data. Upon acceptance, you will see the display change to 'AUTO'.
If you do not program cycle two before the 'AUTO' display appears (after one programming cycle) but decide you would like to, you must reset the timer and start again.
The timer display will show 'ERR' if an error was made in programming, like setting overlapping water cycles, or if no duration instructions for either of the two cycles was entered.

Program Review

On the 5700, when the Program Review key is pressed, the light will flash the sequence of key presses (separating each key's number of presses by a pause) On the 5750, when the Program Review key is pressed, the display will review the programs.

Record Your Program

Write down the time, day and date of both programs as well as your DELAY, DURATION and WATER DAYS selections for future reference.

Sample Program

Suppose you want your timer to start watering 4 hours from now. For a total of 45 minutes every other day. All it takes is 4 easy steps.

1. Reset timer by pressing DELAY and WATER DAYS keys at the same time for 4 seconds.
2. Press DELAY key 4 times (once for each of the 4 hours of desired delay time).
3. Press DURATION key 3 times (each press adds 15 minutes of watering time).
   On the 5750, hold the DURATION key until it scrolls to 0:45 min or press the key 31 times.
4. Press WATER DAYS key twice (timer will now water every other day).
   After 10 seconds, the timer will show program has been accepted with a flash or the screen clears.
   On the 5750, display now reads 'CYCLE 2'. Suppose you would like to program a second cycle that will begin in 8 hours, will water for 15 minutes once a day.

1. Press DELAY key 8 times.
2. Hold the DURATION key until it scrolls to 0:15 minutes or press the key 15 times.
3. Press WATER DAYS key once.
   After 10 seconds, the timer LCD will now read 'AUTO', indicating the second program has been accepted.

Manual Operation

Anytime after installing batteries, the valve can be opened or closed using the manual OPEN/CLOSE key.
Press the MANUAL OPEN/CLOSE key to start watering immediately. Press the same key again to stop.

If left in manual mode, the valve will stay open for a period between 60 and 75 minutes and then will automatically close. This manual open time limit is designed as a safeguard that's intended to prevent flooding if the timer valve is accidentally opened. When the valve closes, it may be manually opened again, if desired.

Care and Maintenance

The following precautions should be taken:

1. Always keep top cover closed when keyboard is not in use.
2. The timer may be used with water pressures up to 100 psi.
3. Do not leave timer on the faucet or store it outside during freezing weather. Exposure to temperatures below 32°F (0°C) may damage the unit.
4. Units must not be submerged in water or used with hot water over 100°F (38°C).
5. To ensure unit's temperature remains below 100°F (38°C), do not expose it to direct sunlight. We recommend the timer be used only in shady areas.

Periods Not In Service

1. Look at the program record to reference time, day and date entered.
2. Programs may be reviewed by pressing the PROGRAM REVIEW key.
3. If no watering is intended for long periods (i.e., during the winter season), simply unscrew the unit from the faucet and press the MANUAL OPEN key. In the spring, it is recommended that the unit be reprogrammed and new batteries inserted.

This timer is maintenance free. Replace weak batteries immediately when the timer starts flashing on 5700 (and LOBAT appears in the display panel on model 5750). If the timer should happen to fail despite the care taken in manufacturing and testing, repair should be performed by an authorized customer service agent for L.R. Nelson Corp. (1-800-489-4968)

Trouble Shooting Guide

If you still have problems, call our toll-free number 1-800-498-4568 any weekday (except holidays) from 8:00 AM to 5:00 PM central time. Be sure you have your unit when you call.

Documents / Resources

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Nelson 5700, 5750 - Electronic Water Timer Manual