Novatek NACF75 Operating Instructions Manual Download Page 6

5

Maintenance Instructions

Maintenance of your new water filter requires very little time or effort but it is essential. Regular maintenance will ensure many
years of efficient and trouble free operation.

Care of All Water Filters

To retain the attractive appearance of your new water filter, clean occasionally with a mild soap solution. Do not use abrasive
cleaners, ammonia or solvents. Never subject your filter to freezing or to water temperatures above 120°F.

Replacing Media Bed

NF  -

the  media  bed  in  a  neutralizing  filter  is  slowly  dissolved  and  has  to  be  replaced.  The  frequency  of  replacement  varies,

depending on water quality – consult your dealer to determine the expected life of your media bed.

ACF -

under normal operating conditions the effective life of the filter media is approximately one to three years depending on

the water quality, after which, taste and odor problems may return. When this happens contact your dealer for a replacement
media bed.

MMF  -

under  normal  operating  conditions,  the  media  should  never  need  to  be  replaced.  If  you  experience  pressure  loss  and

cannot correct it with a manual regeneration, your media bed may need replacing – contact your dealer.

Installation & Replacement of Filter Media Pak

Check to ensure all media parts are received.

The first step in replacing the media bed is to shut off the water supply to the filter. Then
place the unit into the backwash position to release any pressure in the lines. At this point,
you  must  disconnect  the  plumbing  from  the  inlet  and  outlet.  Then  unscrew  the  control
valve (Item A) from the fiberglass tank. Once this has been done, remove the distributor
tube (Item B). Then you can remove the filter media and two types of gravel from the tank.
The quickest way to do this is by simply tipping the tank upside down into a large drum or
pail. The tank must be rinsed out completely and have no media or gravel left in it at all.

Loading the Media-Pak

Place  the  distributor  tube  (Item  B)  back  down  the  center  of  the  tank.  The  top  of  this  tube
should be plugged with a rag or cork to prevent media from entering. Pour the bag of coarse
gravel (Item E) into the tank, then pour the bag of fine gravel (Item D) into the tank.

It is important that the distributor tube is not moved or pulled out as it would not be
possible to put it down to the bottom of the tank once gravel or media are in the tank.

Finally pour the larger bag(s) of media into the tank.

For multi-media units only. These units have to be loaded in the following order:

1.  Coarse gravel (1/2 x 1/4)

4.  Fine garnet (30 x 40)

2.  Fine gravel (1/8 x 1/16)

5.  Fine filter sand (.45 x .55)

3.  Coarse garnet (8 x 12)

6.  Anthrafilt

Once this is done, the rag or cork should be removed from the distributor tube. Clean off the top of the tank. Finally place the
control valve on the tank and onto the distributor tube. Tighten the control valve onto the tank. Connect or reconnect the inlet
and  outlets  and  drain.  The  control  valve  should  be  in  the  backwash  position.  Slowly  open  the  inlet  valve  water  supply  and
slowly fill the filter tank until water appears at the open drain line (Item F). Return the control to the service position and shut the
inlet off for approximately one hour to allow the media to soak in the water.

After one hour, turn inlet water on slowly and place the control into the backwash position and plug the unit’s electrical cord into
a constant power source. Let the unit continue through its regeneration cycle automatically.

The  regeneration  is  necessary  so  all  media  fines  are  backwashed  down  the  drain  to  ensure  clean  filtered  water.  After  this
media has been replaced, it may be necessary to reset the present time of day on the control valve timer as it will have been
unplugged for some time.

Control

Valve

Drain

Line

Distributor

Tube

Coarse

Gravel

Fine

Gravel

Media

Summary of Contents for NACF75

Page 1: ...Carbon Filter MMF Multimedia Filter NF Neutralizing Filter Page 5 of this manual contains important maintenance procedures required for the continued proper operation of this unit These MUST be perfor...

Page 2: ...ckwash Inches W x D x H Size Inches Weight Lbs NNF75 75 2 3 5 3 5 10 x 10 x 57 8 x 47 75 NNF10 1 0 3 5 4 11 x 11 x 58 9 x 48 115 NNF15 1 5 5 8 5 12 x 12 x 64 10 x 54 165 NNF20 2 0 6 10 7 14 x 14 x 62...

Page 3: ...nstallation kit or bypass to the control valve Make inlet and outlet water connections to meet applicable plumbing codes A 3 4 inlet line is recommended When sweat fittings are used solder the adapter...

Page 4: ...being used regeneration should be staggered by 15 minute intervals from 1 a m Manual Bypass Figure 3A In case of an emergency you can isolate your water filter from the water supply using the bypass...

Page 5: ...s tab out Moving clockwise round the skipper wheel adjust the remaining tabs using the following table as a guide Manual Regeneration Turn the manual regeneration knob clockwise This slight movement o...

Page 6: ...rge drum or pail The tank must be rinsed out completely and have no media or gravel left in it at all Loading the Media Pak Place the distributor tube Item B back down the center of the tank The top o...

Page 7: ...sure permanent electrical service check fuse interrupted plug or switch Timer is defective Replace timer Power failure Reset time of day Broken cogs on the 24 hour gear Replace 24 hour gear Timer moto...

Page 8: ...od shall be from the date thereof Lifetime Guarantee on Mineral Tanks and Brine Tanks Novatek will provide a replacement mineral tank or brine tank to any original equipment purchaser in possession of...

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