SENSOR ENABLE (BV:12) is set to 0, then the ERV will use the DCV CO2 INSIDE (AV:2) parameter. Any value can be written into this parameter.

The ERV will look at this parameter along with parameters: REMOTE MIN DCV VALUE SETPOINT (AV:17), RE-

MOTE MAX DCV VALUE SETPOINT (AV:15), REMOTE MIN CFM SETPOINT (AV:16), and REMOTE MAX CFM SETPOINT (AV:14) to determine the settings for the ERV. These 4 remote set points will only be used if the REMOTE AIRFLOW CONFIGURATION MODE (AV:10) parameter is not 0. Otherwise the values that have been loaded locally into the ERV will be used.

EX FILTER BP (AV:22) AND OA FILTER BP (AV:23) — These status points show the pressure drop across each air fil- ter. This pressure drop is used to determine when the air filters are dirty. These numbers will always be 0 unless the ERV was ordered with this option.

REMOTE EX FILTER BP SETPOINT (AV:24) AND REMOTE OA FILTER BP SETPOINT (AV:25) — These set points are related to the dirty filter indicator option of the ERV. If the ERV has the dirty filter indicator option installed this parameter will set the trip point for which the ERV will give a dirty filter alarm. This number will be dependent on the airflow that the ERV is set to. The best way to determine the dirty filter set points is to use the unit status parameters called EX FILTER BP (AV:22) and OA FILTER BP (AV:23). With clean filters in the ERV, and the ERV running at its design con- ditions, note the values of the filter status parameters. Multiply those numbers by 1.5 and use them for the filter set points. These set points will overwrite the value that was set locally into the ERV. If this value is changed locally it will overwrite the value that was set remotely.

REMOTE EX FAN SPEED SETPOINT (AV:27) AND REMOTE OA FAN SPEED SETPOINT (AV:28) — These parameters allow for direct input to tell the fans how fast to run. The parameter needs to be set to a number between 1% and 100%. When this parameter is set to 0% the ERV’s internal control board will take control of the fans.

ERV WHEEL SPEED (AV:29) — This status shows the speed that the ERV heat exchanger wheel is running on a scale of 0 to 100%. If the ERV was not ordered with a variable fre- quency drive on the wheel this status will always read 100%.

REMOTE VFD WHEEL SPEED SETPOINT (AV:30) — This parameter allows for the wheel rotation speed to be varied. This is often used to change the efficiency of the Energy Re- covery Heat Exchanger Wheel to maintain a constant discharge temperature. This needs to be entered as a number that is be- tween 1% and 100%. Entering 0% will put the wheel speed in automatic mode, and the ERV control board will take control. To turn off the wheel use the REMOTE WHEEL BYPASS ENABLE (BV:16) parameter.

ERV 2POS DAMPER STAT (BV:l) — This status shows if the ERV is commanding the two-position dampers to open. This status will update whether the ERV was ordered with two- position dampers or not.

ERV EX STAT (BV:2) AND ERV OA STAT (BV:3) — These status points output a logic 1 to show when the fan is ON.

ERV WHEEL STAT (BV:4) — The ERV WHEEL STAT sta- tus shows whether or not the ERV heat exchange wheel is running.

ERV EX BLOWER ALARM (BV:5) AND ERV OA BLOWER ALARM (BV:8) — These alarms indicate a cata- strophic failure of a blower in the ERV. The alarms can also in- dicate a missing leg of incoming power, over voltage, under voltage or extremely dirty incoming power to the ERV. These alarms will never go active if the ERV was not ordered with the blower alarm options.

FIX WHEEL ALARM (BV:7) — This alarm indicates that the ERV heat exchange wheel is not turning when it is sup- posed to be turning. This alarm will never go active if the ERV was not ordered with this alarm option.

EX DIRTY FILTER ALARM (BV:6) AND OA DIRTY FILTER ALARM (BV:9) — This alarm indicates that the air

filters in the ERV need to be changed. These alarms are related to parameters REMOTE EX FILTER BP SETPOINT (AV:24) and REMOTE OA FILTER BP SETPOINT (AV:25). The set points determine when the ERV is going to give a dirty filter alarm. This alarm will never go active if the ERV was not or- dered with the dirty filter alarm options.

OA LOW CFM (BV:10) — This alarm becomes active if the desired outside air CFM set point is not being met. The alarm will only trip if the desired outside air CFM set point has not been satisfied for 5 minutes.

REMOTE BP SENSOR ENABLE (BV:11) — If this param- eter is set to OFF the ERV will use the building pressure read- ing off of the sensor inside the ERV. If the parameter is set to ON, the ERV will use the building pressure value that is being written in parameter REMOTE BP SENSOR VALUE.

REMOTE ERV DOWN ENABLE (BV:13) — This parame- ter is another start/stop command for the ERV. Turning this pa- rameter to 1 will shut the ERV down. Unlike the REMOTE START STOP (BV:15) parameter, it is not dependant on the

REMOTE AIRFLOW CONFIGURATION MODE (AV:10) parameter.

REMOTE PWR EXHAUST ENABLE (BV:14) — This pa- rameter puts the ERV into a power exhaust mode that is usually used in conjunction with the economizer of the rooftop unit. The power exhaust mode turns off the wheel and the outside air blower. The exhaust blower will continue to run at its current set point. Setting this parameter to 1 will put the ERV into pow- er exhaust mode.

REMOTE START STOP (BV:15) — This parameter allows the user to turn on/off the ERV. Setting this parameter to 1 will turn the ERV ON. The REMOTE START STOP works in con- junction with the start/stop contact on the ERV field terminal strip if the REMOTE AIRFLOW CONFIGURATION MODE (AV:10) is set to 0. If the REMOTE AIRFLOW CONFIGU- RATION MODE (AV:10) is not set to 0, then the REMOTE START STOP parameter will override the field terminal strip.

REMOTE WHEEL BYPASS ENABLE (BV:16) — Setting this parameter to 1 will turn off the ERV heat exchange wheel. This mode is normally used to disable the wheel when free cooling is available.

SERVICE

CAUTION

Disconnect electrical power before servicing energy recov- ery cassette. Failure to do so could result in personal injury.

Removing and Installing Non-Segmented Wheel for Cleaning (62EB,E7 Units) — Non-segmented en- ergy transfer wheels are secured to the shaft and bearing sup- port beam by a Phillips head screw and hub cover. See Fig. 30.

To remove the energy transfer wheel, follow Steps 1-4 below. (See Fig. 30.) Reverse procedure for wheel installation.

1.Remove front seal assembly (pulley side of cassette) if present.

2.Remove belt from pulley and position temporarily around wheel rim.

3.Remove the hub cover from the wheel. Note the wheel to shaft alignment pin under the hub cover. Ensure this pin

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Carrier 62E specifications Service
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62E specifications

The Carrier 62E is a highly regarded air conditioning unit known for its efficiency, reliability, and advanced technology features. Designed to cater to both residential and light commercial applications, this model is recognized for its ability to provide optimal cooling performance even in challenging climates.

One of the standout features of the Carrier 62E is its energy efficiency. The unit boasts a high Seasonal Energy Efficiency Ratio (SEER) rating, which ensures significant energy savings over time. This efficiency not only translates to lower energy bills for users but also contributes positively to environmental sustainability. The Carrier 62E is designed with eco-friendly refrigerants that minimize its carbon footprint while maintaining high performance levels.

In terms of technology, the Carrier 62E comes equipped with innovative smart controls. The unit can be integrated with smart home systems, allowing users to control their cooling preferences through their smartphones or other connected devices. This feature enhances convenience, enabling homeowners to adjust temperatures and monitor their system remotely, ensuring maximum comfort regardless of their location.

The 62E is engineered with a durable and robust build, ensuring long-lasting reliability. The components are crafted to withstand harsh weather conditions, making it a solid investment for users in varied climates. Additionally, the unit operates quietly, thanks to its advanced sound-dampening technologies, ensuring that indoor environments remain peaceful and undisturbed.

Installation of the Carrier 62E is straightforward, thanks to its versatile design and flexibility. The system can be configured for various ductwork arrangements, adapting seamlessly to different home layouts and existing infrastructure.

Another notable characteristic of the Carrier 62E is its advanced filtration system. The unit comes with a high-efficiency filter that captures airborne particles, allergens, and pollutants, promoting cleaner and healthier indoor air quality. This is an essential feature for households with allergy sufferers, as it helps create a more comfortable living space.

Overall, the Carrier 62E stands out as a leader in residential and light commercial air conditioning solutions. With its energy efficiency, state-of-the-art technology, durable design, and air quality improvements, it meets the diverse needs of modern users while providing remarkable comfort throughout the year. As climate considerations become increasingly important, the Carrier 62E remains a compelling choice for those seeking to enhance their home's comfort while being mindful of energy consumption and environmental impact.
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