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WL250

 Manual 

                                                      Page 65 ‐ Revision: 12‐12‐2018 

HOT TANK DESCALING INSTRUCTIONS

 

 

The hot tank requires removal of mineral deposits (descaling) on a regular basis.  Typically 
descaling should take place every 6 to 12 months to preserve the long‐term health of your 
unit.  
 
Use non‐toxic cleaner such as ScaleKleen, DEZCAL, 20% Citric Acid Solution, or Undiluted 
Vinegar Solution to remove mineral deposits as directed by the manufacturer depending 
upon filtration and local water conditions.   
 
Descaling is an important process that removes calcium deposits, or scale, that can build up 
inside a tank over time.  Calcium and scale is non‐toxic but left unattended will hinder your 
unit’s performance.  

 

 

WARNING!  

PERSONAL PROTECTIVE EQUIPMENT REQUIRED.  

Always ensure proper 

ventilation and use rubber or nitrile gloves and eye protection when using chemicals.  
Refer to Material Safety Data Sheet for specific requirements of each product.

     

 

             CAUTION!

  

 STAINLESS STEEL TANK DESCALING

.  

 

The Hot Tank is made from stainless steel.  Ensure descaling solution is compatible with 
stainless and always flush the unit completely.  Dispose in an environmentally safe 
manner. 

 

Materials Needed:  

 

Personal Protective Equipment.  Rubber or Nitrile Safety Gloves and Protective Eyewear  

 

Phillips Screwdriver   

 

Temperature Gauge 

 

Water Pitcher or Container to collect water from the faucet 

 

5‐gallon container or drain basin 

 

Citric Acid Based Cleaner 

 

¼” Plastic Tubing, at least 4 feet in length, and assorted ¼” quick connect fittings 

 

Sanitizing Cartridge – an empty Waterlogic Filter with cartridge removed 

 

Food Coloring 

 

1.

 

Bypass filters before starting the Descaling Procedure. 
 

2.

 

Put descaler per directions and 3 drops of food coloring into the descaling cartridge. 
 

3.

 

Connect descaling cartridge to the inlet water supply and connect to inlet bulkhead fitting 
on the back of the unit.  Turn on Water Supply. 
 

4.

 

Select Hot Water and depress the Main Dispensing Button on the Front Control Panel until 
descaling solution (colored water) comes out of the faucet.  Container and drain basic will 
be required to catch water from the faucet. 

Summary of Contents for WL250

Page 1: ...ice Flow is 1 89 Liters 0 5 gallons per Minute 7 Hot Water Intermittently Forced Through the Faucet or a Dual Stream Out of the Faucet 8 Hot Water coming out of both the Faucet and the Vent Hole 9 Hot...

Page 2: ...thod of verification is to turn off water to unit and press the dispense button Does the solenoid open without water pressure to the unit Listen for solenoid to activate not button click Adjust water...

Page 3: ...the water supply valve The unit is not properly plugged into electrical outlet Check electrical outlet connection or for blown circuit breaker Red Heater and Compressor Switch on unit is in the off p...

Page 4: ...nt Dispensing PCB or Solenoid Connector Check that they are connected properly and tightened Solenoid If both the Water Pressure and PCB have been ruled out then it is the Solenoid Replace Solenoid Di...

Page 5: ...feed line Filters Filters with high pressure drop due to fouling or just by design Change filters more frequently or go to higher micron size filter for local water conditions Restrictions Flow path...

Page 6: ...without water pressure to the unit Listen for solenoid to activate not button click Adjust water pressure to 40 60 psi Improper tubing attachment from the tank to faucet or vice versa Verify tubing is...

Page 7: ...aucet The hot tank outlet tube has a restrictor in its base This ensures the reservoir is always full by allowing more water in than out There is a small hole in the side of the tank outlet tube that...

Page 8: ...to unit and press the dispense button Does the solenoid open without water pressure to the unit Listen for solenoid to activate not button click Adjust water pressure to 40 60 psi Hot or Cold solenoi...

Page 9: ...lity Red Heater and Compressor Switch on unit is off Turn Red Heater and Compressor Switch on I ON Loose connection s on the Display PCB Turn power off unplug the unit and visually inspect solenoid co...

Page 10: ...has an outlet restrictor to ensure the tanks remain full of water and water is controlled as it is released to the faucet The inlet solenoid controls flow into the tanks The tanks will depressurize o...

Page 11: ...EEL TANK DESCALING The Hot Tank is made from stainless steel Ensure descaling solution is compatible with stainless and always flush the unit completely Dispose in an environmentally safe manner Mater...

Page 12: ...e WL250 Water Treatment System produces Hot Water up to 87 C 188 F Water above 52 C 125 F can cause severe burns or scalding Hot water should be dispensed carefully into insulated container to avoid i...

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