SERVICE
6
MERV13 Pre Filter is recommended to replace minimum every six (6) months. The service light turns from
green to yellow after five (5) months and to red after six (6) months. Change the pre filter before the red LED
light illuminates.
UVC Germicidal Ultraviolet Lamps is recommended to be replaced every twelve (12) to twenty four (24)
months. The service light turns from green to yellow as a thirty (30) notice to replace lamps. The service light
turns to red when it is time to replace lamps.
Choice Options available for Formaldehyde Post Filter or Carbon Post Filter
Formaldehyde (potassium permanganate) Post Filter is an onsite installed option. Order Field Controls part
number 1RK026 model number 1RK026. Field Controls recommends replacing minimum every six (6) months.
The service light turns from green to yellow after five (5) months and to red after six (6) months. Change the
post filter before the red LED light illuminates.
Carbon Post Filter is an onsite installed option. Order Field Controls part number 46728500 model number
1RK027. Field Controls recommends replacing minimum every six (6) months. The service light turns from
green to yellow after five (5) months and to red after six (6) months. Change the post filter before the red LED
light illuminates.
CHANGING THE FILTER
1. Always wear protective eye goggles to prevent physical harm by UVC Ultraviolet light.
2. Unplug the power cord from main outlet on the Cube unit.
3. Unscrew the four (4) screws from both the MERV13 filter cover and pull out the loaded MERV13 filter
and replace. Discard as per local regulations if required.
4. The correct placement of the new MERV13 filter is with the wire side down stream of airflow.
5. Check that airflow arrow on MERV13 is pointing in the same direction as the airflow arrow found on
filter frame panel.
6. Reattach filter cover and tighten four (4) cover screws.
