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USER MANUAL
PEC-A-3500-1M
PORTABLE EVAPORATIVE COOLER
Thank you for choosing Dial.
Please read this User Manual before using this Portable Evaporative Cooler
Retain the manual for future reference.
Attention: If you are experiencing difficulty with your portable evaporative cooler, do not return it to
the place of purchase. Contact Dial Manufacturing for help or disposition.
Dial Manufacturing, Inc.
25 South 51st Avenue, Phoenix, AZ 85043
1-800-350-DIAL | customerservice@dialmfg.com

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Deone Sottosanti
August 6, 2025

How do we access the float valve to unplug it

1 comments:
Deone Sottosanti
August 6, 2025

@Deone Sottosanti how do we access float valve

Summary of Contents for DIAL PEC-A-3500-1M

  • Page 1 Retain the manual for future reference. Attention: If you are experiencing difficulty with your portable evaporative cooler, do not return it to the place of purchase. Contact Dial Manufacturing for help or disposition. Dial Manufacturing, Inc. 25 South 51st Avenue, Phoenix, AZ 85043...
  • Page 2: Table Of Contents

    CONTENTS SAFETY INSTRUCTIONS APPLICATIONS, FEATURES, SPECIFICATIONS HOW EVAPORATIVE AIR COOLERS WORK EXTERIOR PARTS OF THE COOLER UNPACKING AND INSTALLING THE CASTERS CONTROL PANEL OPERATING THE EVAPORATIVE AIR COOLER MAINTENANCE TROUBLESHOOTING WARRANTY POLICY DAMAGED SHIPMENT PRODUCT RETURN REPLACEMENT PARTS Page 2 of 12...
  • Page 3: Safety Instructions

    SAFETY INSTRUCTIONS • Read the instructions thoroughly before operating the unit. Always place the unit on a dry, flat and stable surface and apply brakes on the caster • wheels. • Do not move or tilt the unit while the water tank is full. The outdoor use of this portable evaporative cooler must be supervised.
  • Page 4: Applications, Features, Specifications

    APPLICATIONS • Alternative and economical spot cooling solution for areas and spaces which cannot be sealed or traditionally air conditioned. • Dial Portable Evaporative Cooler can be used in garage, workshop, barn / stable, on patio and ® commercial open spaces such as side-walk cafes and out-door seating & dining.
  • Page 5: How Evaporative Air Coolers Work

    HOW EVAPORATIVE AIR COOLERS WORK The evaporative cooler cools the air by means of evaporation. When water evaporates, liquid water is converted into vapor using the thermal energy in the air resulting in a lower air temperature and spot cooling effect. Evaporative cooling therefore causes a drop in the temperature of air proportional to the sensible heat drop and an increase in humidity proportional to the latent heat gain.
  • Page 6: Exterior Parts Of The Cooler

    EXTERIOR PARTS OF THE EVAPORATIVE COOLER Top Water Tray Control Panel Louvres Dust (Air Outlet) Screen Water Reservoir Filler Door Water Level Gauge Castors Reinforced Drain Plug (Underside) Page 6 of 12...
  • Page 7: Unpacking And Installing The Casters

    CONTROL PANEL OPERATIONS Use this dial to select fan speed. To turn “on” the fan, turn “FAN” dial from “OFF” to “L”, “M” or “H” (Low, Medium or High). To activate evaporative cooling turn “PUMP” dial from “OFF” to “ON”.
  • Page 8: Operating The Evaporative Air Cooler

    TO ACTIVATE EVAPORATIVE COOLING, TURN “PUMP” DIAL FROM “OFF” TO “ON”. Check the water level to ensure that the water level is sufficient for the operation. TURN THE “SWING” DIAL FROM “OFF TO “ON” THE “OSC” BUTTON FOR THE AIRFLOW TO OSCILLATE LEFT AND RIGHT.
  • Page 9: Maintenance

    MAINTENANCE CLEANING CAUTION: Turn off the evaporative cooler and disconnect the plug from the electrical outlet before cleaning, servicing or performing any maintenance on the unit. CLEANING THE EXTERIOR SURFACE OF THE EVAPORATIVE COOLER • Clean the plastic housing with a duster or a soft moist cloth. •...
  • Page 10: Troubleshooting

    2. Media Pad may have developed mold or bacterial growth. Replace Media Pad. If the above solutions do not resolve the problem, please contact Dial Customer Service and Technical Support. Page 10 of 12...
  • Page 11: Warranty Policy

    Please make note of the dealer return policy at the location where purchased, as the return policy of Dial product is determined on the dealer level. The ability to return product is at the sole discretion of the dealer. For the repair of damaged product, or for troubleshooting, the customer may contact Dial for assistance.
  • Page 12: Replacement Parts

    PEC-A-3500-1M PORTABLE EVAPORATIVE COOLER REPLACEMENT PARTS These replacement parts are available at participating dealers of Dial Portable Evaporative Coolers or ® call 1-800-350-DIAL for assistance. PART MODEL NUMBER PART DESCRIPTION PART NUMBER PEC-RP-001-3500 Water Pump 82020 PEC-RP-002-8888A Float Valve Set...

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