OHAir MySpace - HGU Cleaning and Replacement; HGU Removal Steps; Optic and HGU Cleaning; HGU Re-installation

Step 7 - Carefully locate wafer connection “I” into black
socket, then rmly push and manipulate until fully
inserted.
Step 8 - Re-t HGU
TM
screws “F” and ”G” conrming HGU
TM
is correctly seated.
Step 10 - Replace metal cover plate and re-t screws in
the following sequence, loosely rst, tighten once all in
place:
1. A (press cover down to locate screw correctly)
2. B
3. C
4. D
Step 11 - Replace the air lter and front cover of the
device as per previous instructions.
A
B
C
D
Step 9 - Replace the chamber cover and insert screw “E”.
HGU
TM
Cleaning and Replacement
NOTE: HGU
TM
is an acronym for Hydroxyl Generator Unit and it is referred to as either
Optic Assembly or HGU
TM
in this user manual.
E
F
G
Page 7
Step 1 - Refer to previous section ‘Removing Cover for
Cleaning and Replacement’ to remove the front cover.
Step 3 - To remove the chamber cover, remove screw “E”
using PH1 Philips screw driver. Lift up the chamber cover
to expose the optic assembly (HGU
TM
).
Step 5 - Gently clean the optic with a glass cleaner and a
lint free cloth. Ensure optic is completely dry before
re-insertion.
HGU
TM
Cleaning and Replacement
A
B
C
D
E
F
G
H
I
Instructions continued on the next page...
Step 6 - While the HGU
TM
is out, remove dust and clean
with dry cloth.
Step 4 - To remove the HGU
TM
, remove two HGU
TM
mounting screws “F” and “G”. Grasp the centre bae “H”
and manipulate side to side whilst rmly pulling it away
from the connector and lifting out.
Step 2 - To remove the metal cover plate, remove screws
“A-D” using PH1 Philips head screw driver. Lift up the
plate to remove it.
Page 6