AMS-S1M Owners Manual

Automatic Misting System AMS-S1M Operation Manual


Thank you for your recent purchase of an Automatic Misting System manufactured by Mosquito Control equipment. This manual will guide you through the setup, operation and maintenance of your system.


 General safety considerations

  •  There are a variety of concentrated repellents and insecticides for use in Automatic misting systems.  Only use chemicals that are labeled for use in Automatic Misting systems. Read all labels and Data Sheets carefully, following all instructions regarding application, dilution rates, storage and disposal. Some misting concentrates may be toxic to fish or may burn plants. When locating nozzles, prevent mist from drifting off property. The Insecticide label should be attached to the drum in a weatherproof pouch.
  • Once assembled and programmed, the control box and drum clamp ring should be padlocked to prevent access by children.
  • Electrical Shock Hazard. Disconnect the power source before servicing. Failure to do so could result in serious injury or death.
  • The System should be located in a clean, level, covered area, free from flooding and runoff, near a GFCI (ground fault circuit interrupter) protected outlet rated for 15 Amps minimum. Extension cords should not be used.


Operation Notes

The Program Clock

  • Setting the Clock: Turn the Minute hand clockwise until the time of day (AM or PM) on the outer dial is aligned with the triangular marker on the inner dial.
  • Programming: Push a white captive tripper outward at each time misting is desired. Each tab on the Program Clock represents fifteen minuets.
  • For systems with a Digital clock see FAQ section or the Timerco Digital Clock Programming guide on AMS-D page.

Spray time adjustment

  • The misting time may be set between 5 and 180 seconds by adjusting the knob below the Program Clock

Float Ball

  • The Float Ball is attached to an internal micro-switch. When the tank is empty, the micro switch automatically shuts off the system to keep the pump from running dry. Note: The system will not be operable until the tank is refilled.

Pressure Gauge

  • While the pump is running the pressure is displayed on the Pressure gauge. The normal range is between 160 and 200, Note: if the PSI is set to 250 or above the pump will go into bypass mode and will no longer pump any fluid.

Needle valve

  • To adjust the pressure, turn the needle valve clockwise to increase, counter-clockwise to decrease. Note: if the PSI is set to 250 or above the pump will go into bypass mode and will no longer pump any fluid.

Mist Now Button

  • A misting cycle may be initiated on demand by pushing the Mist Now button. Note: if the program clock is at a white captive tripper, the Mist Now button will not work until it has passed the tripper. 

Initial setup

Once the nozzles are mounted, connect the unions with tubing ensuring good connections by pressing firmly until tubing “clicks” into place. A test for leaks and nozzle spray pattern can now be
conducted. Connect the 1/4″ tubing that will go to your nozzles to the 1/4″ output, fill your reservoir about 50% with water only and plug in system. In the control box turn the Misting Time knob to its highest setting and then press the “Mist Now” button. Let pressure build and adjust it with the needle valve to 170-200 PSI using the liquid filled pressure gauge.Walk the Nozzle circuit checking for leaks, and spray pattern. The higher the pressure the greater the distance the mist will be projected and the more solution used over time. Adjust to suit. Note: PSI at or above 250 will cause the pump to go into bypass; nozzles will not spray.

Nozzle Flushing

Prior to turning off your system for an extended period of time, as in winterizing, it’s a good idea to flush the system to prevent any residue misting solution from gumming up the works.  Ideally, your tank of misting solution will be near empty and a 5 gallon bucket of fresh clean water may be placed inside the drum and the intake filter placed in it. Turn the selector switch to Test, the pump will run continuously. Allow to run for several minutes.


Mosquito Control Equipment One Year Limited Warranty

Products covered: The following Mosquito Misting system products manufactured by Mosquito Control Equipment are
covered by this limited warranty: AMS-MM, AMS-MM+20, AMS-S1M, AMS-A, and AMS-D

How long is the warranty?: The warranty begins on the date of purchase and lasts for one year

What is covered: This Limited Warranty covers any defects in material or workmanship under normal use during the
Warranty Period.

What is not covered

1) Filters. 2) Damage due to misuse, abuse, neglect, theft, vandalism, unauthorized repairs or attempted repairs, natural
disasters, acts of God or terrorism. 3) Damage in shipping to or from the manufacturer. 4) Shipping and packaging of a
system returned for a warranty claim. 5) Any special, indirect, exemplary, incidental or consequential damages arising
out of or in connection with the product, any other materials or services furnished hereunder, to the greatest extent
allowed by applicable law.

How to make a Warranty claim

Please contact the factory by email (, telephone (1-800-805-5049) or mail and provide your name, ship to address, telephone #, email
address, serial #, date of purchase and a description of the product defect. A warranty technician will be assigned to
your case and contact you to diagnose and troubleshoot the problem. If the product must be sent to a factory service
center for repair they will issue you a return authorization # and provide you shipping instructions. Please do not return
products to the factory without a return authorization number as they will be rejected, returned to sender freight collect.
This warranty is the sole exclusive remedy regarding any potential defects of the product and is limited to the repair or
replacement of the product purchased.