Restmo O-HT-3

RESTMO 2-Zone Water Timer User Manual

Model: O-HT-3 | Brand: Restmo

Introduction

Thank you for choosing the RESTMO 2-Zone Water Timer. This device is designed to automate your garden watering tasks, providing efficient and precise irrigation for your lawn, garden, or drip systems. Featuring a durable brass inlet, independent control for two zones, and functions like manual watering and rain delay, this timer simplifies water management. Please read this manual thoroughly before installation and operation to ensure proper use and longevity of your product.

Safety Information

  • This water timer is intended for outdoor use with cold water only. Do not use with hot water or in indoor applications.
  • Do not immerse the timer in water. The unit is IP54 waterproof, meaning it is protected against splashing water, but not submersion.
  • Ensure all connections are tight to prevent leaks. Use Teflon tape on threaded connections if necessary.
  • Use only 2 new AAA alkaline batteries. Do not mix old and new batteries, or different types of batteries. Remove batteries if the unit will not be used for an extended period.
  • Protect the timer from freezing temperatures. Disconnect and store indoors during winter months to prevent damage.
  • Keep out of reach of children.

Product Overview

Components

Familiarize yourself with the main components of your RESTMO 2-Zone Water Timer:

Diagram of RESTMO 2-Zone Water Timer with labeled parts including LCD screen, control dial, buttons, brass inlet, and two outlets.

Figure 1: RESTMO 2-Zone Water Timer with labeled components and dimensions.

  • Large LCD Screen: Displays current time, watering status, and programming settings.
  • Control Dial: Used to navigate through different programming modes (SET CLOCK, START TIME, HOW LONG, HOW OFTEN, ON/OFF).
  • OK / Manual Button: Confirms selections and activates manual watering mode.
  • + / Delay Button: Adjusts values up and activates rain delay mode.
  • - Button: Adjusts values down.
  • Zone Button: Selects between Zone 1, Zone 2, or both zones for programming.
  • Pure Brass Inlet: Connects to your outdoor faucet, featuring a filter to prevent debris.
  • Zone 1 & Zone 2 Outlets: Connect to your garden hoses or irrigation lines.
  • Waterproof Battery Compartment: Houses 2 AAA alkaline batteries.

Setup

1. Battery Installation

  1. Locate the battery compartment on the back of the timer.
  2. Slide the battery cover off.
  3. Insert 2 new AAA alkaline batteries, ensuring correct polarity (+/-).
  4. Replace the battery cover securely. The LCD screen should light up.
Close-up image of the battery compartment of the water timer with two AAA batteries inserted.

Figure 2: Battery compartment for 2 AAA alkaline batteries.

2. Connecting the Water Timer

  1. Ensure the faucet is turned off.
  2. Screw the brass inlet of the water timer onto your outdoor faucet. Hand-tighten only. The 360° swivel feature allows for easy positioning.
  3. Connect your garden hoses or irrigation lines to the Zone 1 and Zone 2 outlets at the bottom of the timer. Hand-tighten to ensure a secure, leak-proof connection.
  4. Slowly turn on your faucet completely. The timer is designed to withstand high working pressure and prevent leaks.
RESTMO water timer connected to an outdoor faucet and two green garden hoses, with flowers in the background.

Figure 3: Water timer connected to a faucet and hoses in a garden setting.

Close-up of the 360 degree swivel pure brass inlet of the water timer, showing the internal filter screen.

Figure 4: The 360° swivel pure brass inlet ensures a secure and flexible connection.

Operating Instructions

The control dial and buttons allow for easy programming. Rotate the dial to select a setting, then use the '+' and '-' buttons to adjust values, and 'OK' to confirm.

1. Setting the Clock

  1. Turn the control dial to SET CLOCK.
  2. Use the '+' and '-' buttons to set the current time (hour and minute).
  3. Press OK to confirm and move to the next setting, or turn the dial to another mode.

2. Programming Automatic Watering

You can set independent watering schedules for Zone 1, Zone 2, or both.

Aerial view of a house with two distinct lawn areas, Zone 1 and Zone 2, each being watered by a sprinkler, illustrating the 2 independent outlets feature.

Figure 5: The 2-zone timer allows independent programming for two separate areas.

  1. Press the ZONE button to select the zone you wish to program (ZONE 1, ZONE 2, or both). The selected zone(s) will be indicated on the LCD.
  2. Turn the control dial to START TIME. Use '+' and '-' to set the desired start time for watering. Press OK.
  3. Turn the control dial to HOW LONG. Use '+' and '-' to set the watering duration (from 1 minute to 239 minutes). Press OK.
  4. Turn the control dial to HOW OFTEN. Use '+' and '-' to set the watering frequency (from 1 hour to 12 hours, or from 1 day to 7 days). Press OK.
  5. Once all settings are confirmed, turn the dial to ON. The timer will now operate according to your programmed schedule.
Image showing the automatic watering settings on the RESTMO water timer, with sliders for watering duration (1 min to 3 hrs 59 mins) and watering frequency (1 hour to 7 days).

Figure 6: Automatic watering settings for duration and frequency.

3. Manual Watering

To water manually without affecting your programmed schedule:

  1. Ensure the control dial is in the ON position.
  2. Long press the OK / MANUAL button. The display will show a manual watering duration.
  3. Use the '+' and '-' buttons to adjust the desired manual watering duration (from 1 minute to 7 hours 59 minutes).
  4. Press OK to start manual watering. The water will flow for the set duration and then stop automatically.
Close-up of the RESTMO water timer's buttons, highlighting the OK/MANUAL button for manual watering.

Figure 7: Activating manual watering by long-pressing the OK/MANUAL button.

4. Rain Delay Function

To temporarily pause your watering schedule due to rain or other reasons:

  1. Ensure the control dial is in the ON position.
  2. Long press the + / DELAY button. The display will show delay options.
  3. Use the '+' and '-' buttons to select the desired delay duration (0, 24, 48, or 72 hours).
  4. Press OK to activate the rain delay. The timer will pause for the selected duration and then resume its programmed schedule.
Close-up of the RESTMO water timer's buttons, highlighting the +/DELAY button for rain delay function.

Figure 8: Activating rain delay by long-pressing the +/DELAY button.

5. Turning Off the Timer

To stop all watering and programming, simply turn the control dial to the OFF position.

Image showing the control dial of the RESTMO water timer turned to the OFF position, with a faucet icon indicating water is stopped.

Figure 9: Turning the dial to OFF stops all watering.

Maintenance

  • Battery Replacement: Replace batteries annually or when the low battery indicator appears on the LCD screen. Always use new AAA alkaline batteries.
  • Inlet Filter Cleaning: Periodically check the filter screen inside the brass inlet for debris. Remove the timer from the faucet, unscrew the inlet, and rinse the filter under running water. This prevents clogging and ensures proper water flow.
  • Winter Storage: Before the first frost, disconnect the water timer from the faucet and hoses. Remove the batteries. Store the unit indoors in a dry, frost-free location to prevent damage from freezing water.
  • General Cleaning: Wipe the exterior of the timer with a damp cloth. Do not use abrasive cleaners or solvents.
Close-up image of the brass inlet of the water timer, showing the fine mesh filter screen inside.

Figure 10: Clean the inlet filter regularly to prevent blockages.

Troubleshooting

ProblemPossible CauseSolution
Timer not turning on / LCD blankDead or incorrectly installed batteries.Replace with 2 new AAA alkaline batteries, ensuring correct polarity.
No water flowFaucet is off; low water pressure; clogged inlet filter; incorrect programming; timer in OFF or Rain Delay mode.Ensure faucet is fully open. Check water pressure. Clean inlet filter. Verify programming and ensure dial is on ON. Check if Rain Delay is active.
Water not stoppingTimer malfunction; debris in valve.Turn dial to OFF. Remove timer and check for debris in the outlets. If problem persists, contact customer support.
Leaks from connectionsLoose connections; worn washers; damaged threads.Tighten all connections. Check and replace rubber washers if worn. Use Teflon tape on threaded connections if needed.
Programming difficultiesIncorrect sequence; misunderstanding of settings.Refer to the 'Operating Instructions' section and follow steps carefully. Ensure you press OK to confirm each setting.

Specifications

FeatureDetail
Model NumberO-HT-3
BrandRestmo
MaterialBrass (Inlet)
Product Dimensions2"D x 5"W x 2"H
Item Weight1.12 pounds (0.51 Kilograms)
Number of Settings3 (Auto/Manual/Rain Delay)
Screen Size5.7 Inches
Inlet Thread3/4" NH Female (pure brass)
Outlet Thread3/4" NH Male
Independent Outlets2
Watering Duration1 minute to 3 hours 59 minutes
Watering Frequency1-12 hours or 1-7 days
Working Pressure8 - 120 PSI (0.5 - 8 Bar)
Working Temperature38 - 120°F (3 - 50°C)
Waterproof RatingIP54

Warranty and Support

For warranty information or technical support, please refer to the product packaging or contact Restmo customer service directly. Contact details can typically be found on the manufacturer's website or through your purchase platform.

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