Table of Contents
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2021 Lennox Industries Inc.
©
Dallas, Texas, USA
MODELS PCO3S-14-16, PCO3S-16-16 AND PCO3S-20-16
THIS MANUAL MUST BE LEFT WITH THE OWNER FOR FUTURE REFERENCE
Table of Contents
Shipping and Packing List ...........................................2
Models ...........................................................................2
Application ....................................................................2
Specifications ...............................................................3
Installation Examples ...................................................5
Installation .....................................................................6
Unique Field-Supplied Installation Items .....................6
Selecting Location .......................................................6
Installing Cabinet .........................................................6
Installing UVA Lamp ....................................................6
Installing UVA Lampholder ..........................................7
Installing Air Filter ........................................................7
Wiring ............................................................................8
Terminals and Wiring Recommendations ....................8
Communication Wiring Routing ...................................8
PureAir S Internal Factory Wiring ................................8
Communicating Control Functions ............................9
PCO Model (H2) Jumpers ...........................................9
Do not connect low voltage wiring to the PureAir S until you confirm the S30 thermostat has thermostat / Smart Hub
control software version 03.40.xxxx or higher software.
To update S30 thermostat follow the check for update procedures outlined in service and application note ACC-18-05.
AIR CLEANERS / FILTERS
507785-01
6/2021
Supersedes 3/2020
INSTALLATION INSTRUCTIONS FOR
IMPORTANT
Lennox PureAir™ S
Air Purification System
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal injury
or loss of life. Installation and service must be performed
by a licensed professional HVAC installer or equivalent,
service agency, or the gas supplier.
WARNING
Electric shock hazard.
Can cause injury or death.
Disconnect all electrical power supplies before servicing.
Access panels must be in place during appliance
operation.
Change Lamp Reset (SW1) ........................................9
Change Filter Reset (SW2) .........................................9
Control Manual Reset .................................................9
Lennox S30 Thermostat Setup ....................................9
System Setup (Commissioning) ..................................9
Reminders ...................................................................9
Adding PureAir S to Existing System ........................10
Dealer Control Center ................................................10
Notifications (Alert Codes) ........................................11
Tests and Diagnostics Function ................................11
Installation Report .....................................................11
Alert Codes .................................................................12
Soft Disable ...............................................................12
Alert Code Types .......................................................12
Operation .....................................................................14
UVA Lamp Replacement ............................................14
Annual Maintenance Kits ...........................................14
Replacement Parts .....................................................14
and Air Filter ..............................................................15
Proper Clean-Up of Broken UVA Lamp .....................15
Troubleshooting Flow Chart ......................................16
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Table of Contents
Related Manuals for Lennox PureAir S PCO3S-14-16
Summary of Contents for Lennox PureAir S PCO3S-14-16
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Page 1: Table Of Contents
Change Lamp Reset (SW1) ........9 Change Filter Reset (SW2) .........9 Control Manual Reset ..........9 Table of Contents Lennox S30 Thermostat Setup ........9 System Setup (Commissioning) ........9 Shipping and Packing List ...........2 Reminders ..............9 Models ................2 Adding PureAir S to Existing System ......10 Application ..............2... -
Page 2: Shipping And Packing List
PureAir S features. Assembled PureAir S air purification system which includes: New features included are: • Cabinet (1) • 4-wire connection to Lennox communicating indoor • UVA Lampholder / PCO cartridge (secure to interior unit control of cabinet) (1) •... -
Page 3: Parts Identification, Dimensions And Specifications
Parts Identification, Dimensions and Specifications arts dentIfIcatIon Healthy Climate Carbon Cabinet Clean 16 Air Filter Communication Control UVA Lampholder / Access Panel PCO Cartridge Rear Mounting Bracket UVA Lamp Ballast UVA Lampholder / PCO Cartridge UVA Lamp Light Sensor UVA Lamp UVA Lamp Electrical Connector UVA Lamp Viewer Power Cord Opening... - Page 4 Some occupants may experience irritation or discomfort during this period. If the irritation or discomfort lasts longer than 48 hours, the homeowner should be advised to contact a Lennox dealer.
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Page 5: Installation Examples
PCO3S OPTIONAL RAB RETURN AIR BASE SUPPLY DUCT PCO3S NOTE: Lennox badge can be rotated 180 degrees for this application. UPFLOW FURNACE (Option 2 − Side Return Air − 5 ton) (Modified Return Air Opening) HORIZONTAL FURNACE/AIR HANDLER DUCT TRANSIITON... -
Page 6: Installation
5. Use field-provided aluminum foil tape or water-based Installation mastic to seal all joints between the cabinet, air handler and duct. nIqUe Ield UPPlIed nstallatIon tems 6. In high humidity applications, wrap cabinet with field- provided 2” (50mm) foil-faced insulation (foil on the The following items are recommended to have on-hand for outside) to prevent condensation. -
Page 7: Installing Uva Lampholder
8. Rotate the hinged control panel assembly out. NOTE: There is an arrow on the front of the component indicating the correct way to install it. 3. Connect UVA lamp 4-pin male connector to ballast female 4-pin connector. BALLAST FOUR PIN FEMALE CONNECTOR ROTATE OUT THE CONTROL PANEL... -
Page 8: Wiring
S30 thermostat has thermostat / Smart Hub control software version 03.40.xxxx or higher software. Communicating systems requires four thermostat wires between the PureAir S and the Lennox Communicating To update S30 thermostat follow the check for update Indoor Control. When a thermostat cable with more... -
Page 9: Communicating Control Functions
PCO unit size selec on jumper control center > equipment > reset > reset HVAC equipment. Change Lamp bu on Lennox S30 Thermostat Setup High side pressure tap ystem etUP ommIssIonIng Low side pressure During the initial or rerunning the commissioning of the... -
Page 10: Adding Pureair S To Existing System
(see “Figure 15. Equipment Found” on page 9). done NOTE: The Lennox S30 thermostat must have firmware version 3.4 or later for compatibility with Lennox Figure 16. PureAir S Maintenance Setting Pure Air S Air Purification System. -
Page 11: Notifications (Alert Codes)
The following is a complete list of all possible parameters listed under System. Parameters actually available are dependent on the Lennox communicating equipment type detected and non-communicating equipment added. From the Dealer Control Center Screen, go to equipment > PureAir. There you will find the applicable parameter settings for PureAir S. -
Page 12: Alert Codes
Service Urgent. • Service Soon alerts are found only in under the installer alert button. • Information Only-Dealer is information only and helps Lennox interpret test results and understand complicated behaviors. Information Only are not reported to homeowner or dealer. - Page 13 Review both active and cleared alerts. • Wi-Fi – Press and hold the Lennox logo on the bottom right of stat for 5 seconds to access the dealer control center. Follow the prompts to access the dealer / installer screen and select the “Alerts”...
- Page 14 Table 6. Alert Codes and Troubleshooting GF= Gas Furnace, AH=Air Handler, ID=Indoor unit (GF or AH), HP=Heat Pump, AC=Air Conditioner, OD=Outdoor Unit (AC or HP), PA=Pure Air S, ZA=Zone system and TS=Thermostat Actual Displayed Alert Text Alert Priority Component or System Operational State Under dealer How to clear alert code and Troubleshooting Tip...
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Page 15: Removing And Installing Uva Lamp, Lampholder And Air Filter
Table 6. Alert Codes and Troubleshooting GF= Gas Furnace, AH=Air Handler, ID=Indoor unit (GF or AH), HP=Heat Pump, AC=Air Conditioner, OD=Outdoor Unit (AC or HP), PA=Pure Air S, ZA=Zone system and TS=Thermostat Actual Displayed Alert Text Alert Priority Component or System Operational State Under dealer How to clear alert code and Troubleshooting Tip... -
Page 16: Operation
Replacement Parts ON position, rather than AUTO). NOTE: If air handler does not provide a continuous low Replacement parts are available through Lennox, see blower speed option, an additional blower relay “Figure 1. Parts Identification” on page 3 for parts should be installed. -
Page 17: Proper Clean-Up Of Broken Uva Lamp
12. Properly dispose of UVA lamp and air filter. operation. If the odor does not subside after 48 hours 13. Reinstall in reverse order starting. of operation, instruct the homeowner to unplug the unit UVa l and contact a Lennox dealer. roPer lean P of roken CAUTION If UVA lamp is broken, it must be disposed of properly. -
Page 18: Troubleshooting Flow Chart
Troubleshooting Flow Chart Look through the access panel START viewing port to check lamp. Is the lamp on? Is PCO power cord plugged Is there power to the into AC outlet? If not, plug PCO? PCO cord into AC Outlet. Check PCO power cord for damage and AC outlet for power.