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WL350

 Manual 

                                                                   Page 18 – Revision 11‐21‐2018 

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 

 

19 Liter (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 

 

Food Coloring 

 

1.

 

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

2.

 

Connect descaling cartridge to the inlet water supply and connect to Inlet Bulkhead Fitting on the 
back of the 

WL350

 

Water Treatment System

.  Turn on Water Supply. 

 

3.

 

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. 
 

4.

 

Turn off water supply and remove sanitizing cartridge from inlet water supply.  Reconnect water 
supply to inlet fitting. 
 
 

Summary of Contents for WL350

Page 1: ...ing UV Lamp CAUTION UV LAMPS ARE HAZARDOUS Lamps are considered Hazardous Waste and must be disposed of accordingly Refer to Product MSDS sheet for details 3 Clean the Spiral Quartz Sleeve that surrou...

Page 2: ...is a small hole in the side of the tank outlet tube that allows air and water to pass into the vent chamber as it is heated Water in the vent chamber is suctioned back through the outlet tube vent ho...

Page 3: ...WL350 Manual Page 15 Revision 11 21 2018 HEATER CIRCUIT HOT TANK WIRING...

Page 4: ...n the rear of the hot tank As you look through the condenser coils on the rear of the unit you will see the hot tank located on the right hand side 5 From the front of the Water Treatment System reach...

Page 5: ...top flap of the Protective Metal Box so it snaps back into its original position on the Hot Tank 8 Replace the Lower Front Panel 9 Plug in the Power Cord 10 Turn on the Red Compressor Heater Switch I...

Page 6: ...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 Pr...

Page 7: ...faction WARNING HOT WATER The WL350 Water Treatment System produces Hot Water up to 86 C 187 F Water above 52 C 125 F can cause severe burns or scalding Hot water should be dispensed carefully into in...

Page 8: ...WL350 Manual Page 20 Revision 11 21 2018 FIREWALL OUTLET SOLENOID REVERSE FLOW ORIENTATION...

Page 9: ...tor External Capacitor New LG CSB035 LJCM Compressor Repair Replacement Parts for are not interchangeable with older other compressors Older version of LG compressor is obsolete and no longer availabl...

Page 10: ...ew under the decal at the rear of the unit Remove the red portion of the Cold Tank Temperature label to access the adjustment screw The factory set point is 41 F and is indicated by the dot on sheet m...

Page 11: ...ny button wakes up the WL350 Water Treatment System and turns the heater circuit back on The hot tank will typically take less than 10 minutes to heat the water from ambient to the 85 C 185 F set poin...

Page 12: ...istor Control is for a future Hot Tank design Do not change to Thermistor or it will disable the Hot Tank Unplug Power Cord and remove Top Cover to access Heater Control PCB Thermostat Heater Control...

Page 13: ...0 Water Treatment Systems comes defaulted with Hot Cold water which can be changed to Ambient Cold settings DF1 settings default is to Hot Cold Unplug Power Cord and remove Top Cover to access Energy...

Page 14: ...ctory Part No FT 0063 IL Assembly containing FT 0064 Filter Element One pre installed One required for NSF 42 NSF 53 Certification Replacement parts can be obtained from Waterlogic or an Authorized Wa...

Page 15: ...WL350 Manual Page 27 Revision 11 21 2018 WL350 COUNTER TOP DRAWING AND PARTS LIST Yellow Consumables Green Recommended spare parts Wetted Parts...

Page 16: ...ended Spare Parts 4 1 12 6900 Thermostat and Overload Metal Cover Recommend stocking 2 each for every 10 units purchased ST 8290 Yes 4 2 12 1360 Overload with Manual reset 105 C 221 F Recommend stocki...

Page 17: ...12 8056 Silicon Button Key Mat Recommend stocking 2 each for every 10 units purchased PL 1153 Yes 13 12 8057 Button Label Recommend stocking 2 each for every 10 units purchased LP 7084 Yes 14 12 8150...

Page 18: ...r PU 4064 L00 00 Yes 23 ST 0049 L00 00 Metal Cover Counter Top Only ST 0049 L00 00 Yes 24 12 8375 Transformer 1 6A 120 V for Firewall Counter Top Only EL 5147 Yes 25 12 3165 Upper Shelf Counter Top On...

Page 19: ...n Label PL 1359 Yes 34 Purchase from John Guest JG 3 8 x 1 4 Reducing Fitting PI211208S PU 4137 No 35 NA Firewall Solenoid Valve Fixing Bracket Counter Top Only ST 8297 No 36 NA Filter Bracket Counter...

Page 20: ...itor CO 0019 L00 00 Yes 41A 3 ST 0216 L00 00 Capacitor Bracket ST 0216 L00 00 Yes 41A 4 CO 0017 L00 00 PTC Relay CO 0017 L00 00 Yes 41A 5 CO 0018 L00 00 Overload Protector CO 0018 L00 00 Yes CO 9001 A...

Page 21: ...Thermostat CT 2070 A Yes 45 1 LP 0326 Cold Thermostat Cover Label LP 0326 L00 00 Yes 46 10 4013 Power Socket EL 5016 Yes 47 10 3014 Fuse Holder and Fuse 120V 15A with One Wire EL 5053 Yes 47 1 10 3013...

Page 22: ...WL350 Manual Page 34 Revision 11 21 2018 WL350 TOWER LAYOUT DRAWING AND PARTS LIST Yellow Consumables Green Recommended spare parts Wetted Parts...

Page 23: ...rts 3 1 12 6900 Thermostat and Overload Metal Cover Recommend stocking 2 each for every 10 units purchased ST 0045 L00 00 Yes 3 2 12 1360 Overload with Manual Reset 105 C 221 F Recommend stocking 2 ea...

Page 24: ...urchased EN 6126 L00 00 Yes 11 12 8056 Silicon Button Key Mat Recommend stocking 2 each for every 10 units purchased PL 1153 Yes 12 12 8057 Button Label Recommend stocking 2 each for every 10 units pu...

Page 25: ...Tank Assembly No UV holder No sub tank Tower Only CT 2017 A No 21 Purchase from John Guest Union Tee John Guest P N P10208S PU 4011 No 22 12 5673 Silver Back Panel ST 8135 A No 23 19 1069 Cold Tank Th...

Page 26: ...6A 120 V for Firewall Tower Only EL 5003 A Yes 31 ST 0059 L00 00 Electric Ballast Bracket NA No 32 12 8000 Silver Side Panel with Hole for Handle Tower Only ST 8157 Yes 33 12 8058 Side Panel Plastic H...

Page 27: ...2 Front Bottom Panel Tower Only PL 1148 Yes 41 12 8053 Front Bottom Insert Panel Tower Only PL 1149 Yes 42 12 8005 Filter Bracket Tower Only ST 8138 Yes 43 20 1010 2 8 Filter Clip PU 4161 Yes 44 10 30...

Page 28: ...L00 00 Yes 48A 2 CO 0019 L00 00 Compressor Capacitor CO 0019 L00 00 Yes 48A 3 ST 0216 L00 00 Capacitor Bracket ST 0216 L00 00 Yes 48A 4 CO 0017 L00 00 PTC Relay CO 0017 L00 00 Yes 48A 5 CO 0018 L00 0...

Page 29: ...WL350 Manual Page 41 Revision 11 21 2018 WL350 COUNTER TOP WATER FLOW DIAGRAM...

Page 30: ...WL350 Manual Page 42 Revision 11 21 2018 WL350 TOWER WATER FLOW DIAGRAM...

Page 31: ...ual Page 43 Revision 11 21 2018 WL350 ELECTRICAL DIAGRAM DANGER HIGH VOLTAGE ELECTRICAL HAZARD PCB Printed Circuit Board contains High Voltage Only trained and qualified technicians should attempt liv...

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