Page No 36 Reznor, Guardian GB GR and GS, Installation Manual, EN 2021-08, D301214 Iss D
MS
Inlet foam filter replacement GR
Figure 28 GR inlet foam retaining clip 1
1. To remove the filter element of the GR units,
select the clip from either end of the panel, push
the outside leg of the retaining clip towards the
centre of the filter/inlet grille which will release
the clip out of the inlet grille frame, work along
the clip releasing until the clip is fully out of the
frame.
2. The filter element can now be removed and
replaced with a new element reverse the
procedure to refit and re-secure
Figure 28.1 GR removing the inlet foam
retaining clip
Honeycomb outlet replacement
To remove the honeycomb outlet, first remove the
complete carrier. The carrier is secured at one end by
a bolt and stud to the other end. Remove the end
panel to access this fixing bolt and then release the
carrier from the stud side, on the 2m models the
centre support can be moved to one side to allow
the stud side to be released
On the GS units peal back the tabs which retain
the honeycomb outlet, remove the honeycomb
media from the carrier and replace. Then fit the new
honeycomb media into the carrier and push the tabs
back over the honeycomb to secure
Figure 29 GS honeycomb retaining
On the GR units the tabs are part of a retaining
plate, peal back the tabs which retain the
honeycomb outlet remove the media from the
carrier and replace. Then fit the new honeycomb
media into the carrier and push the tabs back over
the honeycomb to secure
Figure 29.1 GR honeycomb retaining
Note the position of the temperature sensor from
the right of the unit and ensure it does not get
damaged, the cables will need to be disconnected
from the control panel terminals TEMP, refit in the
position given in figures 30 and table 9. (below)
Figure 30 Temperature sensor position
Model length Unit
Position from right
1metre
mm
280
1.5 metre
mm
355
2 metre
mm
280
Table 9 Temperature sensor position
