Creating An "Under Floor" Flue Installation - Rinnai RHFE-308FTR Installation Manual

CREATING AN "UNDER FLOOR" FLUE INSTALLATION

g
f
h
y
The Down & Out flue option allows for a direct flue kit (ESDFK) to face downwards and the flue to be run vertically
though a hole in the floor, and then horizontally to a suitable location outside.
Flue must not terminate under a building.
Flue terminal is only available in the horizontal format.
CAUTION
Steps for creating a Under Floor ue installation are as follows:
1
1. Using a drill, remove the pop rivet used to fasten the straight flue pipe connection pipe to the flue transition of
ESDFK and remove but do not discard the straight flue pipe connection.
2. Fit the elbowed flue pipe connection supplied with the back cover kit to the flue transition pushing it fully home
and then fasten in pla ce with the grub screw (supplied) using an Allen key. The grub screw terminates in a
groove in the flue transition. When fastened this prevents accidental dislodgement of the pipe connections.
3. Refit the straight flue pipe connection to the end of the elbow until it is fully home and then fasten in place with
a 3mm rivet.
Ensure t he st raight p ipe a nd e lbow a re securely fa stened t o t he ue tr ansition by t he g rub
screw and rivets. Test soundness of the connections by attempting to 'pull apart' the assembled
CAUTION
components. Improper assembly or fastening can result in products of combustion dispersing into
the room being heated which may result in a dangerous condition.
4. Attach the side cover panels from the back cover kit (ESBSK A, B, C, D, E or F) to the rear of the heater in
accordance with the assembly Instructions supplied with the back cover kit and temporarily position the heater
in the desired position.
Check proposed route of down and out flue to confirm there are no obstructions in the flue path.
5. Temporarily attach ESDFK to the flue outlet pipe from the rear of the heater. Align the flue in a vertical manner.
Ensure the f lue c omponents a re positioned to have a minimum 25 mm clearance from any
sensor wires at the rear of the heater.
CAUTION
Rinnai New Zealand Ltd.
FLUE COMPONENT ASSEMBLY
c
a
e
d
Total flue length can be up
to nine (9) metres long and
can contain a maximum of
b
two (2) ESBEND (2 x 90°)!
Activities for creating a Under Floor flue installation:
a. Modify ESDFK for Under Floor Installation.
b. Create Penetration in floor.
c. Install side panels of Back Cover Kit (ESBSK).
d. Locate Heater.
e. Connect Heater Exhaust.
f. Connect Combustion Air Hose.
g. Installation and fastening of Back Cover Kit
(ESBSK).
h. Cut, Fit & Secure Components (as required).
y. Refer to steps f & g of Direct & Direct Extended
(as required).
z. Finalise Installation & Commissioning of Heater.
GRUB
SCREW
2
(Supplied)
15
CAUTION
CAUTION
CAUTION
3
3mm RIVET
ES Flue Installation Manual