Carrier 48/50P030-100 Installation, Start-up And Service Instructions Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53480064-01 Printed in U.S.A. Form 48/50-73SI Pg 1 8-09 Replaces: 48/50A-4SIInstallation Start-Up andService InstructionsPart No. CRCBDIOX002A00CONTENTSSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Check Package Contents. . . . . . . . . . . . . . . . . . . . . . . . . 1INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2,3START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Configuring the ComfortLink™ Controller. . . . . . . . 4Verification and Calibration . . . . . . . . . . . . . . . . . . . . . . 4SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4SAFETY CONSIDERATIONSInstalling, starting up and servicing HVAC (heating, ventila-tion, and air conditioning) equipment can be hazardous due tosystem pressures, electrical components and equipmentlocations.Only trained, qualified installers and service techniciansshould install, start up and service this equipment.When working on HVAC equipment, observe precautionsin the literature, labels attached to the equipment and any othersafety precautions that apply. Follow all safety codes. Wearsafety glasses and work gloves. Use care when handling andinstalling the sensor.Understand the signal words DANGER, WARNING, andCAUTION. These words are used with the safety alertsymbol . DANGER identifies the most serious hazardswhich will result in severe personal injury or death.WARNING signifies a hazard which could result in personalinjury or death. CAUTION is used to identify unsafe practiceswhich would result in minor personal injury or propertydamage.GENERALThe CO2 sensor (Fig. 1) is designed to monitor carbondioxide (CO2) levels in the return air and interface with theComfortLink™ controller on the rooftop air-conditioning unit.The sensor perceives CO2 levels in the 0 to 2,000 parts permillion (ppm) range and provides outputs indicating this level.The unit utilizes a 4 to 20-mA analog signal. The ComfortLinkcontroller uses this signal to control the economizer damperposition and ensure adequate level of outside air in thebuilding. This is one of several approved methods of control-ling the indoor-air quality (IAQ) in a building and meets therequirements of local building codes and ASHRAE (AmericanSociety of Heating, Refrigerating and Air ConditioningEngineers) Standard 62. The control sensor features a mem-brane-covered waveguide and sample chamber that producesstable, reliable, and highly accurate carbon dioxide readings.The sensor is self-calibrating and should not need to bemanually calibrated.Check Package Contents — Remove accessory pack-aging and inspect shipment for damage. If any damage is found,file a claim with the shipping agent immediately. If any item ismissing or any part does not assemble properly, notify yourCarrier distributor. Table 1 lists the accessory package contents.Table 1 — Accessory Package Contents*Do not use the electrical harness provided in this kit for 48/50P and48/50Z units.WARNINGPrior to installation of this accessory, make sure all poweris disconnected to the unit and locked out. Failure to dis-connect power supply prior to servicing may result in seri-ous injury.ITEM QUANTITYCO 2 Sensor (Part No. HH99ZZ019) 1Bracket (48/50A) 1No. 8-18 x 1 / 4 Screw 21 / 4 AB-14 x 5 / 8 Screw 2Electrical Harness* 1Bracket (48/50P,48/50Z) 148/50A020-060, 48/50P030-100,48/50Z030-105CO 2 Sensor AccessoryFRONT VIEW SIDE VIEW MOUNTING PLATEFig. 1 — CO 2 Sensor

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