gohastings.com EC-160 Manual De Usuario

115 VOLT
1 PHASE

1 1/2 NPT

3/4 NPT

UNIT SUPPORT
BY OTHERS

MANUAL DRAIN VALVE
BY OTHERS

ROOF LINE

TO DRAIN BY OTHERS

WATER VALVE BY OTHERS

FRESH WATER
     SUPPLY

WATER
LEVEL

RESERVOIR

BLEED OFF
    VALVE

FLOAT VALVE

1/2 NPT

OVER FLOW
   OF

DR

DV

WV

WP

FV

TO NEUTRAL

  PUMP MOTOR
CONTROL RELAY

GRN

WHT

PUMP MOTOR

RED

RED

   PUMP MOTOR
CONTROL RELAY
   CONTACTS

TO CONTROL CONTACTS

BLU

FL

- 4 -

__ __ __ __ __  Field Wired
____________  Factory Wired
__ _______ __  Field Piping

                    the electrical wiring                       with all applicable local, state, or provincial and national ordinances and codes.

Water connections (refer to "Specifications') should, and must follow, local codes and ordinances.  Connections are provided 
on each unit with standard pipe thread sizes.  Refer to pages 4 and 5 for your system.   For units with automatic drain kit and 
freeze protection, the minimum pressure should be 10 PSI so valves will operate properly; for other models, 10 PSI or less.

Set the float valve  (FV)  to allow fresh water to enter reservoir to a depth of   2 1/2"  for models EC-40 through  EC-750.   By 
loosening  the thumb  screw,  located  on the float valve assembly,  and setting  the float  until the  valve shut off is at the de- 
signed depth, no other adjustment needs to be made.  Do not forget to tighten the thumb screw securely.

You may now start your unit.   Watch for the first few  times that  the media  gets completely saturated and  that all phases of 
operations  (See "Operations")  are working  properly.   If necessary adjust the pump discharge gate valve to avoid dry areas 
on the media.   Water should  be visible trickling  down the flutes  of the media.   Watch also  for excess foaming  (See  
"Trouble Shooting") of the water and media.

          After a day of operation  you will notice the  water to be a shade of green.   The media is  the cause,  and the reservoir 
should be drained and refilled a couple of times to correct this.

Now proceed to the "Operation" part of this manual and read about the unit that you have purchased.

3.

4.

5.

6.

Refer to the schematic piping and wiring while going through start-up procedure for the particular system you have purchased.

STANDARD UNIT START UP PROCEDURE

1.
2.
3.

4.

5.

6.

OPEN MANUAL SHUT OFF VALVE (WV).
MANUAL DRAIN VALVE (DV) IS CLOSED.
FLOAT VALVE (FV) ALLOWS FRESH WATER TO ENTER 
RESERVOIR.
WATER PUMP (WP) WILL START AS SOON AS FLOAT 
SWITCH (FL) CLOSES.  iF WATER IS TOO LOW PUMP 
WON'T RUN.  WATER PUMP (WP) SHOULD BE WIRED SO 
THAT PUMP CANNOT RUN WITHOUT BLOWER MOTOR IN 
OPERATION.
BLEED OFF (BO) TO PREVENT SCALE FORMATION.  A 
BLEED-OFF AT THE RATE OF 3-6% IS REQUIRED.  THE 
EXACT AMOUNT WILL DEPEND ON THE pH AND 
HARDNESS OF THE WATER, AND THE INTENSITY OF 
EVAPORATION.
UNIT CAN BE USED WITH BLOWER ON, AND 
EVAPORATIVE COOLER PUMP OFF.