Rinnai RHFE-263FA 2, Owner'S Operation And Installation Manual

Page: 53 / 56

– 51 –
Condensed water
may accumulate
here, and cause a blockage
preventing combustion.
■
CAUTIONS
1. Maximum extendable length
FOR BEST ROOM AIR HUMIDITY, KEEP WATER
IN THE HUMIDIFIER TRAY.
2. To prevent water condensation
3 ゜ slope(approximate)
Less than 8ft.
4. Wherever the air intake hose and exhaust pipe
run sideways, try to have the exhaust pipe on
top (to prevent the air intake hose from sagging
onto the exhaust pipe).
QUALIFIED INSTALLING AGENCY
The installation must conform to local codes, in the
absence of local codes, the installation must
conform with American National Standard (National
Fuel Gas Code) known as NFPA 54 and ANSI
Z223.1.1996.
Available from the American National Standards
Institute, Inc., 1430 Broadway, New York, N.Y. 10018
or from the National Fire Protection Association,
470 Atlantic Avenue, Boston, Mass. 02210.
・ 13 feet, 2 bends
・ The bend where the hose and pipes leave the body is
not counted.
・ The air intake hose should run along the exhaust pipe.
CAUTION
Never allow the exhaust pipe to sag, as condensed
water may accumulate and cause incomplete
combustion.
3. Condensed water formed by combustion, will run
back to the unit, and may overflow from the
condensation pan if pipes are longer then 8 feet.
Therefore, pipes exceeding these lengths should be
made to drain to the outside by giving their horizontal
portions 3˚ or more downward and outward slope.
Exhaust pipe
Exhaust pipe
Air intake hose
Air intake hose