Oxygen 8 SERENA - Maintenance; Regular Maintenance; Annual Maintenance

Installation Manual Serena Series
8.0 Maintenance
8.1 Regular Maintenance
8.2 Annual Maintenance
1. Turn o the unit and disconnect the power supply.
2. Unlatch the door and lift the door panel towards you, hold it firmly and slide it to the left.
3. Clean the inside of the door and drain pan with a damp cloth to remove dirt and debris
that may be present.
4. Clean the filters (twice a year)
a. Remove the filters, b. Vacuum to remove most of the dust, c. Wash with a mixture of
warm water and mild soap. Rinse thoroughly and shake filters to remove water and let
dry.
5. Oil/grease defrost damper lever and hinges.
6. Check the airflow sensors twice a year for lint/duct accumulation. If necessary, clean the
sensors with a lint-free cloth. Take extra care while handling. Ensure the sensor goes
back to the supply diuser and the exhaust sensor goes back to the exhaust diuser on
the same original position.
7. Check the exterior fresh air supply hood:
Make sure there are no leaves, twigs, grass, ice or snow that could be drawn into the
vent. Partial blocking of this air vent could cause the unit to malfunction.
8. Reassemble the components, filters and door (the door is secured when you hear a click).
9. Reconnect the power and turn on the unit.
Repeat steps 1-5 from section 6.1 and continue with the following steps:
1. Clean the ERV Core: Remove the filters, loosen the core locking bracket, remove the core by
carefully gripping the ends of the core and pull evenly outward.
ERV Core
Remove dust using a vacuum cleaner.
2. Motors: Maintenance free and permanently lubricated.
3. Drain Tube and Drain Pipe: Inspect the drain pipe, drain tube and "P" trap for blockage, mold
or kinks. Flush with warm soapy water and replace if worn, bent to unable to clean.
4. Clean Ductwork if Required: Wipe and vacuum the duct once every year. The ductwork
running to and from the ERV may accumulate dirt. You may wish to contact a heating/
ventilation company to do this.
5. Cleaning the Fans: Fans may accumulate dirt causing an imbalance and/or excessive
vibration on the ERV. A reduction in airflow may also occur. In new construction, this may
result within the first year due to heavy dust and may occur periodically after that over time
depending on the outdoor conditions.
a. Open the service door, b. Remove the core, c. Disconnect the fan motor wires, d. Pull
the fan assembly out of unit, e. Check for any accumulation on the blades, f. Clean with a
small brush if necessary: scrub individual fan blades until clean, vacuum and wipe, g. Put the
components back in place, h. Reconnect the power supply and turn the unit back on
Warning
Do not use a cleaning solution
for the ERV core
Do not use a pressure washer
on the ERV core
Do not place the ERV core in
the dishwasher
Do not use bleach or chlorine
Warning
Electrical shock hazard. Can
cause injury or death. Before
attempting to perform and
service or maintenance, always
disconnect the unit from its
power source.