Instruction Manual for LENNOX models including: 40L81, Sensor Bracket Kit, 40L81 Sensor Bracket Kit
Technical | Commercial HVAC Tech Support | Lennox Commercial
4 giorni fa — The sensor bracket kit is used to install a Carbon Dioxide. Sensor (23V87) in the return air opening of packaged gas,.
SENSOR BRACKET KIT ©2022 Lennox Industries Inc. Dallas, Texas, USA INSTALLATION INSTRUCTIONS FOR SENSOR BRACKET KIT (23Y47) USED TO INSTALL CARBON DIOXIDE SENSOR (23V87) IN ROOFTOP UNIT DOWNFLOW APPLICATIONS IMPORTANT Improper installation, adjustment, alteration, service or maintenance can cause personal injury, loss of life, or damage to property. Installation and service must be performed by a licensed professional installer (or equivalent) or a service agency. 4. Pull field provided wiring through grommet. Connect wiring to sensor according to manufacturer's instructions provided with the sensor. 5. Align notches on baseplate with hinges on the back of the cover and pivot closed. Install two screws on the bottom of the sensor cover to secure sensor cover to baseplate as illustrated in figure 2. Shipping and Packing List Check contents for shipping damage. Receiving party should contact the last carrier immediately if shipping damage is found. Description Brackets (one used per unit) 8-32X1/2" PHTF screws 8-18X1/2" SDST screws Grommet Quantity 2 4 1 1 IMPORTANT These instructions are intended as a general guide and do not supersedes local codes in any way. Authorities having jurisdiction should be consulted before installation. Application Figure 1. Sensor Mounting Base The sensor bracket kit is used to install a Carbon Dioxide Sensor (23V87) in the return air opening of packaged gas, cooling, and heat pump units in downflow applications. NOTE: The Carbon Dioxide Sensor (23V87) is ordered and shipped separately. The sensor should be black in color for duct applications only. IMPORTANT DO NOT use white sensors in duct applications. The bracket hangs on the return air flange and extends the sensor into the duct. Installation 1. Disconnect all power to unit. 2. Install grommet in bracket. 3. Align baseplate on bracket as shown in figure 1 and secure with two thread forming screws. Figure 2. Install CO2 Sensor Hinges 6. Install bracket and sensor assembly on return air flange. See figure 3 when unit has a narrow return air flange. See figure 4 when unit has a wide return air flange. Retain the unused bracket for other installations. 7. Secure bracket with screw when flange is wide. See figure 4. Figure 3. Install Bracket (Units with Narrow Flange) Figure 4. Install Bracket (Units with Wide Flange) 2Adobe PDF Library 16.0.7