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INTRODUCTION

This  instruction  sheet  will  provide  you  with  information  required
to safely own and operate the Little Giant Electronic Condensate
Unit. Your Little Giant EC-400 Series Electronic Condensate Unit
is uniquely designed as an automatic condensate removal system
to remove the water that drips from a split-system air conditioner
evaporative coil when gravity-feed drainage is not possible. The
EC-400 pump is suitable for intermittent use in applications with
a maximum 50% pump duty cycle and maximum 3-minute pump
ON cycle. To maintain a maximum 50% duty cycle, the pump must
have  at  least  twice  the  flow  rate  of  the  condensate  produced  at
the head required by the application. The EC-400 is suitable for
most split-system A/C units up top 25,000 BTU/hr, but the amount
of  condensate  produced  by  an  air  conditioner  is  dependent  on
the properties of the inside and outside air and the characteristics
of the air conditioner used. Check with the air conditioner manu-
facturer for the amount of condensate that will be produced for a
given application.
The Electronic Condensate Unit consists of two parts—the water
collection  reservoir  and  control  unit/pump.  The  water  collector
reservoir is to be positioned near the bottom of the air handler.
The control unit/pump can be affixed internal or external to the air
handler.
Automatic operation is achieved through the use of a float/switch
device inside the water collection reservoir that turns the pump on
when approximately 1/2 inch (14mm) of water collects in the water
collection reservoir, and automatically switches off when the water
collection reservoir drains to approximately 3/8 inch (10mm).
The Little Giant unit you have purchased is of the highest quality
workmanship  and  material.  It  has  been  engineered  to  give  you
long and trouble-free service.

The  Little  Giant  pumps  are  carefully  packaged,  inspected  and
tested  to  ensure  safe  operation  and  delivery.  When  you  receive
your  pump,  examine  it  carefully  to  determine  that  there  are  no
broken or damaged parts that may have occurred during shipment.
If  damage  has  occurred,  make  notation  and  notify  the  firm  that
you purchased the pump from. They will assist you in replacement
or repair, if required.
READ  INSTRUCTIONS  CAREFULLY  BEFORE  ATTEMPTING  TO
INSTALL,  OPERATE  OR  SERVICE  THE  LITTLE  GIANT  PUMP.
KNOW THE PUMP APPLICATION, LIMITATIONS AND POTENTIAL
HAZARDS. PROTECT YOURSELF AND OTHERS BY OBSERVING
ALL  SAFETY  INFORMATION.  FAILURE  TO  COMPLY  WITH
INSTRUCTIONS  COULD  RESULT  IN  PERSONAL  INJURY  AND/
OR PROPERTY DAMAGE! RETAIN INSTRUCTIONS FOR FUTURE
REFERENCE.

SAFETY GUIDELINES

SHUT  OFF  ELECTRICAL  POWER  AT  FUSE  BOX  BEFORE
ATTEMPTING  TO  SERVICE,  DISCONNECT  CONNECTOR  OR
REMOVE ANY COMPONENT!
  1.  Do  not  use  to  pump  flammable  or  explosive  fluids  such  as

gasoline, fuel oil, kerosene, etc. Do not use in explosive atmo-
spheres.

2. Do not handle pump with wet hands or when standing on a

wet or damp surface or in water.

3. In any installation where property damage and/or personal

injury might result from an inoperative or leaking pump, dis-
charge line blockage, etc., a backup system(s) and/or alarm
should be used.

4. Support pump and piping when assembling and when

installed. Failure to do so may cause piping to break, pump to
fail, motor bearing failures, etc.

5. The control unit/pump is not submersible and must be

installed so that water cannot be dripped, splashed or sprayed
onto the control unit/pump.

EC-400

SErIES

Figure 1.