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Installation, Operation and Maintenance Manual
UV-COM
Ultraviolet Water Disinfection System
Models: C196, C196M, C196C, C196CM, C222,
C222M, C222C, C222CM, C403, and C403M
The UV-COM series of products are certified to
NSF/ANSI/CAN 61 for material safety only, and
to NSF/ANSI/CAN 372 for lead free compliance.
Models C196C, C196CM, C222C, and C222CM
are also certified to NSF/ANSI 55 as Class A systems.
+
LR1382
120V versions of the product are certified by QPS
†
Disclaimer:
The information contained in this manual is subject to change
without notice from Watts. Watts makes no additional warranty
beyond what is set below, including but not limited to, implied
warranties of merchantability and fitness for a particular application.
Some states do not allow the exclusion or limitation of incidental
or consequential damages, so the above limitation may not apply.
Watts is not liable for errors appearing in this manual, nor for
incidental or consequential damages occurring in connection
with the furnishing, performance, or use of these materials.
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information can
result in death, serious personal injury, property damage,
or damage to the equipment.
Keep this Manual for future reference.
IOM-UV-COM
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Summary of Contents for Watts UV-COM C196
- Page 1 Watts is not liable for errors appearing in this manual, nor for Keep this Manual for future reference. incidental or consequential damages occurring in connection...
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Page 2: Table Of Contents
Technology, you can now be certain that your application is receiving ® world-class treatment. The Watts UV-COM series of products conform to the applicable provisions of the Code of Federal Regulations (CFR) requirements including, Title 21, Chapter 1, Subchapter J, Radiological Health. Table of Contents Section 1: Important Instructions And Safety Information ......3... -
Page 3: Section 1: Important Instructions And Safety Information
3. This unit is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or 15. In the event of an alarm or shut down of the Watts lack of experience and knowledge, unless they have been... -
Page 4: Grounding Instructions
Section 1: Important Instructions and Safety Information 1.1 Grounding Instructions 1.2 Ground-Fault Circuit-Interrupter The Watts UV-COM series of products must be grounded. In To comply with National Electrical Code, NFPA 70, the circuit the event of a malfunction or breakdown, grounding will reduce... -
Page 5: Section 2: About The Watts Uv-Com
Crossfire Technology is virtually maintenance-free: Crossfire technology utilizes two lamps mounted in air, outside the quartz sleeve so maintaining a Watts UV-COM unit is as easy as changing a light bulb with no system draining required. The UV lamps require... -
Page 6: Section 3: Product Specifications
Section 3: Product Specifications Specifications and Features common to all Watts UV-COM units Flow restrictors limit the water flow through the UV unit despite Call customer service if you need assistance with technical details the demand or the amount of supply pressure. A flow restrictor is 1-800-659-8400. -
Page 7: Section 4: Installation Instruction
• Ultraviolet lamps (2) – installed within the unit pre-treatment parameters prior to installation. If any specifications • Instruction manual (1) are of concern or unclear please contact Watts Technical Services. • Power cord (1) (located within packaging) IMPORTANT: Should any of the following water parameters •... -
Page 8: Summary Of Installation
Section 4: Installation Instruction 4.1.3 Other Materials Needed Summary of Installation: The Watts UV-COM products require four #12 to 1/4" diameter • Unpack and install UV-COM on a wall fasteners (not provided) to mount to a wall. Pipe insulation is •... -
Page 9: Connecting The Pipes
Section 4: Installation Instruction 2. The optional auto shutoff valve ensures that should the system 4.3 Connecting the Pipes fail, due to power loss, low UVT or low UV lamp output, the system will fail in safe mode and shut down the water flow. It is recommended to install the auto shutoff valve just after the UV unit provided that a flood detection device exists at the site –... -
Page 10: Parallel Installation
Section 4: Installation Instruction 4.4 Parallel Installation 3. Connect the purge valve to a drain using the tubing provided – see Figure 4.3. Note that an air gap of two pipe diameters or 25 mm (1 in), whichever is larger, is required between tubing and When more than one unit is installed in parallel (flow split drain - follow local plumbing regulations. -
Page 11: 4-20Ma And Modbus Option
Section 4: Installation Instruction 4.8 4-20mA and Modbus Option A 4-20mA option is available with two continuous analog output signals and one input signal. The output signals can be UV Dose, or UV Intensity, or UV Transmittance. The input signal is flow (on C403 models only). -
Page 12: Change Purging And Hot Water Alarm Setups For 131°F Hot Water Operation
Section 4: Installation Instruction 4.10 Change Purging and Hot Water Alarm Setups for 131°F Hot Water Operation Setpoints for 131°F (55°C) water operation: In hot water applications (for up to 131°F/55°C water temperature), the system settings must be adjusted to avoid unnecessary alarms and hot water scale buildup on the quartz sleeve. -
Page 13: Change Wiper Cycle Time For 131°F Hot Water Operation
Section 4: Installation Instruction 4.11 Change Wiper Cycle Time For 131°F Hot Water Operation To change the wiper cycle time, do the following: The UV-COM models C403, C222, and C196 have an automatic quartz cleaning device called a wiper. The wiper consists of a 1. -
Page 14: Section 5: Operating Instructions
Section 5: Operating Instructions Indicating LED The UV-COM applies advanced Crossfire Technology yet is simple to operate. The automatic quartz sleeve cleaning technology Green Light – an illuminated green light indicates the unit is treating has been designed to reduce, and in most cases, eliminate the normally. -
Page 15: Navigating The Menus
Section 5: Operating Instructions 5.2 Navigating the Menus Advanced Settings Home 2.7.1 Force Outputs Model name 2.7.1.1 Lamps Treatment Status 2.7.1.2 Wiper Lamp Life 2.7.1.3 Purge Valve UV Dose 2.7.1.4 Shutoff Valve Max Flow or Flow Signal (Optional) 2.7.1.5 Fan UV Date and Time 2.7.1.6 Fan PCB... -
Page 16: Plugging In The Watts Uv-Com For The First Time
Temperature Temperature Figure 5-2 5.3 Plugging in the Watts UV-COM for the First Time 1. Ensure that all external wiring is complete (see section 4.5) 3. Once the unit is plugged in, the LED illuminates, an audible and all the panels of the unit are closed before connecting tone is issued and the display becomes active to confirm the power cord. -
Page 17: Flushing Instructions
This procedure should also be done if the unit is not func- tioning normally; if a bypass has been used; or if there has been a high background bacteria count in a water sample. Watts has 5.7 Automatic Quartz Sleeve... -
Page 18: Section 6: Troubleshooting
Section 6: Troubleshooting The UV-COM will operate unattended until a fault arises. Dose Alarm If an alarm occurs, the auto shutoff valve (optional) will close, pre- The Dose Alarm occurs when there is insufficient UV dose venting water from flowing; the LED turns red; the audio alarm to treat the maximum flow rate prescribed by the unit. -
Page 19: Section 7: Maintenance
UV lamp replacement. Please 3. Slowly swing the door completely to the left to reveal the two consult a Watts technician for further maintenance detail. UV lamps installed in the front half of the UV chamber. Note Optional UVT and Flow Meter Maintenance that the quartz sleeve can be easily inspected. -
Page 20: Replacing And Cleaning Uv Lamps
Section 7: Maintenance 7.2 Replacing and Cleaning UV Lamps The UV-COM contains two ultraviolet (UV) lamps that emit 1. Open the UV chamber as described above. high-intensity UV light in the germicidal range, providing effective 2. Use a slotted screwdriver to pry the lamps up between lamp disinfection of legionella from the water flowing through the unit. - Page 21 Section 7: Maintenance 5. Install the new lamps into the unit one at a time, being careful not to touch the bulb. Insert the top end of the lamp through the top lamp holder then swing lamp base in over the socket. For a LPHO lamp, rotate it until the “Stop Sign”...
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Page 22: Draining The Unit
7. Add about 2 oz. (60cc) of cleaning solution to the top hose/ manifold. The cleaning solution can be a citric acid, vinegar Watts UV-COM products have an automatic quartz sleeve or other non-hazardous solutions. Any solution used should cleaning device within the systems to virtually eliminate the dis- be thoroughly rinsed out afterwards. -
Page 23: Disassembling The Unit
Section 7: Maintenance 7.7 Disassembling the Unit 9. Remove the motor mounting plate from the top manifold by NOTE: This procedure is not recommended for untrained users - removing the two screws and nuts. Removing this plate will please contact your certified water specialist to assist should allow top manifold to come free from the wire bundle. -
Page 24: Cleaning/Removing The Quartz Sleeve
Section 7: Maintenance 7.8 Cleaning/Removing the Quartz Sleeve 8. Install the quartz centering rings (small tabs face outwards) 1. Use a bottle cleaning brush with a long handle to scrub the and then the top and bottom O rings, keeping the quartz inside of the quartz sleeve. -
Page 25: Replacement Parts
Section 7: Maintenance 7.10 Replacement Parts Use only genuine parts from Watts when servicing your UV-COM disinfection system. Failure to use genuine replacement parts will void the factory warranty, and any laboratory validation and/or certification for water safety and system operating performance. - Page 26 Section 7: Maintenance Instant start Preheat AMALGAM System LPHO System Figure 7-9B...
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Page 27: Uv-Com Spare Parts List
Quartz Sleeve Replacement Kit (includes 2 O-rings) 68111150 68111149 68111148 Wiper Assembly Kit Reflector Kit (shipped and sold in pairs) Contact Watts customer support Circuit Board - LCD Circuit Board – Power 68111151 (for 120V systems) Fuse Pack (5 pcs) Seal Kit (complete) -
Page 28: Section 8: Service Record Sheet
Section 8: Service Record Sheet Record lamp replacement dates and events in the space provided below. Date Action (MM / DD/ YYYY) System Installed... -
Page 29: Section 9: Performance Data Sheets
UV Intensity, Net UV Transmittance, 800-659-8400 Lamp Lifetime, Online Troubleshooting Dual Sensors for UV and Net UVT monitoring All replacement parts may be purchased through Watts. Optional features: Auto shutoff valve engineered to be failsafe 4-20mA & Modbus capability (C196CM) - Page 30 UV Intensity, Net UV 800-659-8400 Transmittance, Lamp Lifetime, Online Troubleshooting All replacement parts may be purchased through Watts. Dual Sensors for UV and Net UVT monitoring Replacement component Optional features: Auto shutoff valve engineered to be failsafe 4-20mA &...
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Page 31: Section 10: Wqa Statement
Section 10: WQA Statement The UV-COM series of products are certified to NSF/ANSI/CAN 61 for material safety only, and to NSF/ANSI/CAN 372 for lead free compliance. Models C196C, C196CM, C222C, and C222CM are also certified to NSF/ANSI 55 as Class A systems. This Class A system conforms to NSF/ANSI 55: Ultraviolet Microbiological Water Treatment Systems for the disinfection of microbiologically contaminated water that meets all other public... -
Page 32: Section 11: Watts Uv-Com Limited Warranty
What we will do to correct problems covered by this Limited Warranty: During the warranty period, as set out above, Watts will repair or replace Products or Parts, at its sole discretion and cost, with the exception of shipping and handling charges. Watts may require that certain failed part be returned to Watts within 45 days for analysis and to facilitate continuous improvement;... - Page 33 All UV lamps lose power over their usable lifetime; original equipment UV-COM lamps are engineered and tested to ensure that all of our systems achieve the minimum power for disinfection specified, at the end of lamp life. Lamps that are not sold by Watts may not meet those same high standards.
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- Page 36 USA: T: (800) 659-8400 • N. Andover, MA 01845 • Watts.com Canada: T: (888) 208-8927 • Burlington, ON L7L 5H7 • Watts.ca Latin America: T: (52) 55-4122-0138 • Watts.com IOM-UV-COM 2439 68111136 © 2025 Watts...
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