START-UP

Use the following information to check unit PRIOR to start-up.

CAUTION

Before turning the disconnect switch on, verify that the voltage being provided to the ERV unit matches the volt- age shown on the ERV nameplate. Failure to do so could result in equipment damage.

Unit Preparation — Check that the unit has been in- stalled in accordance with these installation instructions and all applicable codes.

Check all fasteners and set screws for tightness. Verify that all of the panels are in place and secure. Verify that any open- ings to the ERV cabinet are clear of foreign materials.

Internal Wiring — Check all electrical connections in the control box. Tighten as required.

Rain Hoods — The outside air hood will include alumi- num water entrainment filters, which should be in place prior to starting the unit.

Energy Recovery Wheel

DRIVE BELT — Turn the energy recovery wheel by hand to verify free operation. Inspect the belt, which drives the energy wheel rotation. Make sure the belt rides smoothly through the pulley and over the wheel rim.

AIR SEALS — Check that the air seals located around the outside of the wheel and across the center, on both sides of the wheel, are secure and in good condition. Air seals which are too tight will prevent proper rotation of the energy recovery wheel.

Air seal clearance may be checked by placing a sheet of pa- per, like a feeler gage, against the wheel face. To adjust the air seals, loosen all eight seal retaining screws. These screws are located on the bearing support that spans the length of the

a62-383.eps

cassette through the wheel center. Tighten the screws so the air seals tug slightly on the sheet of paper as the wheel is turned. Re-check the air seals for tightness after adjustment.

Replace the access door and apply power. Check that the wheel rotates freely. If the wheel does not rotate or is binding, remove the cassette and adjust.

For units with three phase power only: Remove the ser- vice door to make sure the wheel is turning in the same direc- tion as the sticker next to the motor shows. See Fig. 15. If the wheel is turning in the wrong direction turn, off the disconnect switch and have a qualified electrician swap any 2 of the power leads on the load side of the disconnect switch.

Airflow Settings and Adjustments — With the disconnect on, the display should show "ERV FAN SPEED" on the top line of the display. The bottom line of the display should show "OA=XXX EX=XXX" where the “X”s represent the blower output percentage for the outside air blowers and the exhaust air blowers.

NOTE: If any of the alarms are tripped, the LCD display will scroll between the alarms and the normal display.

To measure the airflow the ERV units have factory-installed airflow test ports, which allow the balancer of the job to easily measure the static pressure across the ERV wheel. The static pressure is measured on both the supply and return sides of the wheel. Take this pressure reading and match up the wheel dif- ferential pressure (Δ P) to pressure chart to display the cfm that is flowing through the ERV wheel. See Table 6.

To balance the airflow remove the small panel next to the control panel cover to access the user input controls. Press the push button and turn the knob clockwise to increase or counter- clockwise to decrease the outside air blower speed (use the test ports and charts described above to calculate cfm levels). Press the push button again to change the exhaust air blower speed. Press the button again to return to the main screen. Replace the user control cover when ERV cabinet is operating at the correct blower speeds.

Fig. 15 — ERV Wheel Rotation

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Carrier 62E specifications Start-Up, Energy Recovery Wheel, A62-383.eps
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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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