Return Air Orientation; Sp430U And Sp435U Fan Cabinet: Swap F1 - F2; Sp415U, Sp421U Fan Cabinet: Swap F1/F2 - F3; Sp5U And Sp6U Fan Cabinet: Swap F1 - F2 - Rinnai Brivis StarPro SP623UN Installation Manual

Return Air Orientation

4.2.1 SP430U and SP435U Fan Cabinet: Swap F1 – F2
a. Remove the lid.
b. Remove F1 and F2 panels (Diagram 10).
c. Remove the internal blanking panel (four screws behind insulation).
d. Install the blanking panel in the required position.
e. Install F1 and F2 panels in the required positions.
f. Install the lid.
4.2.2 SP415U, SP421U Fan Cabinet: Swap F1/F2 – F3
(Not available for SP430U and SP435U)
a. Remove the lid (Diagram 10).
b. Remove the F3 handle and flue terminal, and then remove the panel.
c. Remove the flue hole blanking plate from F1 or F2 as required, then remove the panel.
d. Remove the internal blanking panel (four screws behind insulation).
e. Install the blanking panel in the required position.
f. Install the panels in the required positions.
g. Install the flue terminal and flue hole blanking plate.
h. Install the lid.
4.2.3 SP5U and SP6U Fan Cabinet: Swap F1 – F2
a. Remove the lid (Diagram 10).
b. Remove F3 handle and panel.
c. Remove F1 and F2 panels.
d. Install F1 and F2 panels in the required positions.
e. Install F3 panel and handle.
f. Install the lid.
4.2.4 SP5U and SP6U Fan Cabinet: Swap F1/F2 – F3
a. Remove the lid (Diagram 10).
b. Remove the F3 handle, and then remove the panel.
c. Press the pre-cut opening for the flue from F1/F2 panel as required.
d. Install the panels in the required positions. (Install the end panel and handle last).
e. Ensure the flue is correctly installed.
f. Install the lid.
4.2.5 SP5 and SP6 Internal Fan Cabinet: Swap F1 – F2/F3
a. Remove the screws securing the side pop plate F1 and blanking plate F2/F3 and remove the plates.
b. Install the panels in the required positions
RETURN AIR CONNECTION AT THE END OF THE UNIT - REAR ENTRY (F3)
IMPORTANT:
Connecting the return air duct to the end of the unit reduces the rated airflow by up to 30%. The total number of outlets normally permitted
for a heating system shall be reduced by 2 (predominantly when a unit is laid down). Refer to the outlet register chart on "Table 9. Outlet
Register Chart" on page 34
For ADD-ON cooling applications, MAKE SURE that the minimum recommended airflow is maintained. Refer to the
ADD-ON installation manual for more information.
Rinnai 17 Ducted Gas Heater IM