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FALSE FIREPLACE INSTALLATION
When installing the Rinnai SS850 into a purpose built false fireplace, which is not open to the roof
space of the building, cavity vents will need to be added.
IMPORTANT
Heat lost through the outer skin of the appliance and flue system may not adequately vent. This can
lead to excess heat in the cavity. In some cases the fire may overheat and the safety mechanisms
may operate.
Adding two vents of at least 200 cm
airflow in a cavity of approximately 1.2 m wide x 2.4 m high and 0.8 m deep.
1. Modify the enclosure:
Ensure the enclosure meets the requirements set out on "Enclosure Requirements" on page 10.
2. Gas and electrical connections:
Prepare gas and electrical connections, refer pages 11-12.
3. Take the Zero Clearance Box (ZCB) and coaxial flue adapter off the engine
The Zero Clearance Box and flue adapter come assembled on the engine and need to be taken off.
(i)
Lift and remove the inner frame.
(ii)
Remove the two screws holding the outer frame to the fire—lift and remove.
(iii) Disconnect the CAT5 cable from the ON/OFF button.
(iv) Remove the screws securing the Zero Clearance Box and slide the engine out
(v)
Remove the four screws holding the flue adapter to the Zero Clearance Box and set aside.
4. Install the Zero Clearance Box into the enclosure
Fit the Zero Clearance Box. The base must be flat and level. Front flange to be set forward to allow the wall lining
and flange to be flush when finished. Fit the Zero Clearance Box to the framing on the side and top, use packers
to ensure the screws do not deform the panels of the Zero Clearance Box.
5. Install the coaxial flue adapter
Slide the flue adapter up and in place using the support tags on the back of the Zero Clearance Box. Fix in place
using four screws through the air inlet ports.
6. Install flue system:
Install coaxial flue system. Ensure it is self supported.
7. Connect flue to flue adapter
Slide the flue into the spigot of the flue adapter and push down until it is clipped in place.
8. Check engine seals and determine flue length
Ensure the rubber seals fitted to the back of the fire are in place. Also determine flue length and aeration
plate configuration, refer page 23.
9. Slide engine into the cavity
Slide fire into the cavity until the front flange of the fire is sitting flush against the flange of the Zero Clearance
Box. When aligned the red exhaust seal goes straight into the hole, and the four holes of the coaxial adapter and
engine line up. Fix the fire to the Zero Clearance Box (four screws) and use outer slots to secure to the enclosure.
Once the fire has been screwed to the zero clearance box, the front face of the frame and the front flange of the
fire should be pulled up hard against each other. There are witness holes in the front flange of the fire to ensure
this happens, refer image on page 24.
It is critical to ensure that the air and flue seals are correctly compressed. If there is a gap present, there may not
be a proper seal and performance could be affected.
10. Complete gas connection
11. Install the burn media and commission
Install the burn media, refer page 25. Refit the glass and the inner and outer frames.
Rinnai
one at floor level and one at ceiling level, will allow adequate
2
19
INSTALLATION
SS850 IM
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