Nortec MH Series - Manual (Page 68)

65 | Maintenance and Servicing
Replacing Media Boxes
The Media boxes must be checked each time service is performed on the MHTC/MHB and
replaced when they are heavily soiled or filled with minerals. Actual replacement time varies
depending on operating conditions such as water quality and cleanliness of duct air
(effectiveness and adherence to exchange intervals of the upstream air filter). To replace media
boxes;
1 Follow Maintenance Shutdown and Extended Shutdown procedure on page 68.
2 Remove the mist eliminator (if present) by lifting upwards and then pulling towards you. The
mist eliminator support pins should slide out from slots in the side panels of the MH Duct
Module (see Figure 48: Mist Eliminator Removal.
3 Starting with the top media boxes lift boxes until mounting clips of boxes are free of slots in
support members and then pull boxes back and out. (See Figure 49: Media Box Removal).
4 To reinstall media boxes start with bottom row and insert mounting clips into corresponding
slots in support members. Push boxes in then down until they stop.
5 Ensure flexible EPDM flaps of spray bar cap are seated correctly on top row of boxes.
6 Install Mist eliminator by sliding its support pins into slots in the duct unit’s side panels.
7 Reset the maintenance reminder of the MHTC controller (See Stage Reset on page 51).