Lennox Commercial 024-300 Bipolar Ionizer Kit Installation Guide

Lennox Commercial 024-300 Bipolar Ionizer Kit

FAQs

Q: Can the Bipolar Ionizer be used with units other than LG/LC/LH/LD/KG/KC/KH 024-300?

A: The Bipolar Ionizer is specifically designed for compatibility with LG/LC/LH/LD/KG/KC/KH 024-300 units and may not be suitable for other models.

Q: How do I know if the Ionizer is functioning correctly?

A: The green LED indicator on the Ionizer will illuminate when power is on and ions are being generated during blower operation, indicating proper functionality.

INSTALLATION INSTRUCTIONS

WARNING

Improper installation, adjustment, alteration, service maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional installer (or equivalent), service agency, or the gas supplier.

Shipping and Packing List

Package 1 of 1 contains the following:

1- Bipolar ionizer assembly

• 1- Bag assembly containing:
  • 1- Wiring diagram
  • 2- #10-16 x 5/8” sheet metal screws (3 on 092-210)
  • 2- Screw-in wire ties (156-300 only)
  • 1- Wire tie (156-300 only)
  • 3- Edge protectors (156-300 only)
  • 1- Power harness (LG/LC/KG/KC/KH 024-300 only) 1- Warning label

NOTE – Not all components provided in kit are used in each application. Check the packaging for shipping damage. Contact the last carrier immediately if any shipping damage is found.

CAUTION As with any mechanical equipment, contact with sharp sheet metal edges can result in personal injury. Take care while handling this equipment and wear gloves and protective clothing.

General

The Bipolar Ionizer integrates with system controls for effective air cleaning. The brush-type ionizer produces both positive and negative ions. Ionization has been shown to effectively reduce harmful pathogens, pollutants and odors by the introduction of these positive and negative ions into the airstream. These Ions are dispersed into the occupied space through the duct system proactively reducing airborne contaminants.

Application

The Needlepoint Bipolar Ionizer (NBPI) kit is specifically designed for LG/LC/LH/LD/KG/KC/KH 024-300 units. The ionizer is equipped with dry contacts which allow a Building Automation System (BAS) to interface and indicate ionizer functionality.

NOTE – The BAS will be able to monitor units equipped with M4 Unit Controllers only. Units with an M3 Unit Con-troller or no controller need to be connected to a separate monitoring system. The Ionizers are also equipped with a green LED which indicates power is on. When the blower is in operation, power is delivered to the Ionizers and ions are generated. See TABLE 1 for unit application.

TABLE 1

Unit| Part. No.
LGM/LCM/LGT/LCT/LHT/LDT/LGX/LCX/ LHX024-074| 21U35| 622688-01
LGM/LCM/LGT/LCT/LHT/LDT078-150| 21U36| 622688-02
LG/LC/LH/LD/KG/KC/KH 156, 180, 210| 21U37| 622688-03
LG/LC/LH/LD/KG/KC/KH 240| 21U38| 622688-04
LG/LC/LH/LD/KG/KC/KH 300| 21U39| 622688-05
LGH/LCH/KG/KC/KH 024-074| 22U14| 622688-06
LGH/LCH/KG/KC/KH 092-150| 22U15| 622688-07

WARNING

To prevent serious injury or death:

1. Lock-out/tag-out before performing maintenance.
2. If system power is required (e.g., smoke detector maintenance), disable power to the blower, remove the fan belt where applicable, and ensure all controllers and thermostats are set to the “OFF” position before performing maintenance.
3. Always keep hands, hair, clothing, jewelry, tools, etc., away from moving parts.

Specifications

Specifications

Ionizer dimension| 3.875” L x 1.500” W x 1.500” H (98mm x 38mm x 38mm)
Lamp assembly dimension| 40.75” L x 2” W x 2.75” H (1035mm x 51mm x 60mm)
Triangular sheet metal panel dimension| 024-074 – 40.620” L x 1.688” W x 2.688” H (1032mm x 43mm x 68mm)

LG/LC/LH/LD 078-150-24.000” L x 0.591” W x 3.717” H

(610mm x 15mm x 94mm)

LGH/LCH/KG/KC/KH 092-150 – 36.375” L x 0.591” W x 3.717” H

(924mm x 15mm x 94mm)

156-300 – 68.812” L x 2.438” W x 0.750” H (1748mm x 62mm x 19mm)

Electrical power supply| 24V
Power consumption| <1 Watt
Temperature (outside of duct:| 5°F to 158°F (-15°C to 70°C)
Relatve humidity| <95%
Listings: Conforms to ANSI/UL Std. 867. Certified to CSA 22.2 #187
Specifications subject to change without notice.

Before Installation

• Turn off power to the rooftop unit.
• Open access to the control box, blower compartment and filter section.

WARNING

Electric shock hazard. Can cause injury or death. Disconnect all remote power supplies before opening any unit access panels. Unit may have multiple power supplies. Do not operate without access panels in place.

Install Ionizer

Affix warning label, provided in the kit, in location, shown in FIGURE 2 for 024-150 units and FIGURE 11 for 156-300 units.IMPORTANT – Make sure the unit is powered off during ionizer installation, repair, and/or filter replacement. 024-074 Units

1. On the back side of the unit, remove one screw securing the horizontal supply air duct cover in place. See FIGURE 1. Retain the screw to secure the back side of the ionizer bracket.
2. Install ionizer assembly on the blower deck to the left of the blower housing; secure with two provided screws. See FIGURE 2.
3. On the back side of the unit, reinstall the retained screw engaging the back side of the ionizer bracket. See FIGURE 2.
4. Install the Ionizer assembly on the blower deck to the left of the blower using 3 provided screws. See FIGURE 3.

• 156-300 Units
  • Open the filter access door and remove the filters and filter puller.
  • Remove the screw securing the bottom of the upperfilter bracket. See detail in FIGURE 4.
  • Orient the ionizers toward the indoor coil and slide the ionizer assembly bracket between the upper and lower filter U-channels.
  • Using the provided screw, secure a screw-in wire tie where the bottom filter rack screw was removed. See FIGURE 5.
  •  Install provided edge protectors. See FIGURE 4 for location.
  • Remove the screw securing the top of the upper filter bracket. See detail in FIGURE 4.
  • Using the provided screw, secure a screw-in wire tie where the top filter rack screw was removed. See FIGURE 5.
  • Unbundle ioAnizer wires and route through wire ties.

Wiring Units With M4 Unit Controller

• Make wiring connections as shown in:
  • FIGURE 6 – LGM/LCM/LGT/LCT/LHT/LDT/LGX/LCX/LHX024-074 Units
  • FIGURE 7 – LGM/LCM/LGT/LCT/LHT/LDT078-150 FIGURE 8 – LGM/LCM/LGT/LCT/LHT/LDT156-300
  • NOTE – The power harness provided in the kit is not used in LGM/LCM/LGT/LCT/LHT/LDT applications; unit power wiring is factory-installed.

Wiring Units With M4 Unit Controller

1. Use the following mobile service app menu to configure the Unit Controller.
   • SETUP > INSTALL > RTU INFORMATION > CONFIGURATION ID
2. Set position 6 to the appropriate setting to enable the ionizer:
   • 2=Bipolar Ionizer Installed
   • 3 Both UV Lamp and Ionizer Installed

Wiring Units With M3 Unit Controller – LG/LC036-300S

1. Locate the kit harness and cut the wires near the  3-pin plug. Discard plug.
2. Route the cut wire ends to the control area and the 2-pin plug to the filter or blower section. See FIGURE 9, FIGURE 10, or FIGURE 11. Secure with provided wire ties.
3. Strip and connect the cut wires to P298 terminals D01 and C on the M3 Unit Controller. See FIGURE 12.
4. Connect the 2-pin P422 plug (routed to the filter or blower section) to the ionizer P422. See FIGURE 13.
5. Apply power to unit. Use the M3 to navigate through the following menu which enables the ionizer.
   • DATA > RTU OPTION > EDIT PARAMETER > ENTER DATA ID 186 > OPTION 3
6. To monitor ionizer operation, connect orange and yellow BAS ionizer wires to field-provided monitoring system if available. If the BAS signal is not used, bundle wires and secure them together.

Wiring Units Without Unit Controller

1. Locate the kit harness and cut the wires near the 3-pin plug. Discard plug.
2. Route the cut wire ends to the control area and the 2-pin plug to the filter or blower section. See FIGURE 9, FIGURE 10, or FIGURE 11. Secure with provided wire ties.
3. Strip and connect the cut wires to TB1 terminals G and C. See FIGURE 14.
4. Connect the 2-pin P422 plug (routed to the filter or blower section) to the ionizer P422 plug. See FIGURE 13. On 024-150 units, bundle excess wiring in the blower section.
5. To monitor ionizer operation, connect orange and yellow BAS ionizer wires to the field-provided monitoring system if available. If the BAS signal is not used, bundle wires and secure them together.

Maintenance

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 installer (or equivalent), service agency or gas supplier.

The ionizer was designed for low maintenance. The device should be checked semi-annually to confirm the brushes are clean for maximum output. If the carbon fiber brushes are dirty, to clean the device as follows:

1. Disconnect power.
2. Remove any accumulated dust on the bristles of the brushes with either compressed air or a toothbrush.
3. Reconnect power.

Troubleshooting

If the unit is not working, check the following:

1. The supply fan is running and the green LED light illuminates.
2. Check the power input connections to the ionization unit. Verify all connections are correct and tightened. Reconnect any loose wires as necessary.
3. Test dry contact wiring with a multimeter set to continuity mode.

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