Installation Manual

4 Rinnai Tankless Rack System (TRS) Installation Manual
• Before operang, smell all around the appliance area
for gas. Be sure to smell next to the oor because
some gas is heavier than air and will sele on the
oor.
• Keep the area around the appliance clear and free
from combusble materials, gasoline, and other
ammable vapors and liquids.
• Combusble construcon refers to adjacent walls and
ceiling and should not be confused with combusble
or ammable products and materials. Combusble
and/or ammable products and materials should
never be stored in the vicinity of this or any gas
appliance.
• To protect yourself from harm, before performing
maintenance:
− Turn o the electrical power supply by unplugging
the power cord or by turning o the electricity at
the circuit breaker. (The temperature controller
does not control the electrical power.)
− Turn o the gas at the manual gas control valve,
usually located immediately below the water
heater.
− Turn o the incoming water supply. This can be
done at the isolaon valve immediately below the
water heater or by turning o the water supply to
the building.
− Use only your hand to turn the manual gas control
valve. Never use tools. If the manual gas control
valve will not turn by hand, do not try to repair it;
call a trained and qualied professional. Force or
aempted repair may result in a re or explosion.
• Do not use this appliance if any part has been under
water. Immediately call a licensed professional to
inspect the appliance and to replace any part of the
control system and any manual gas control valve
which has been under water.
Do not use substute materials. Use only parts
cered for the appliance.
• Should overheang occur or the gas supply fail to shut
o, turn o the manual gas control valve to the
appliance.
• Only trained and qualied professionals are permied
to adjust parameter sengs.
• Do not use an extension cord or adapter plug with this
appliance.
• Any alteraon to the appliance or its controls can be
dangerous and will void the warranty.
• Proper venng is required for the safe operaon of
this appliance.
• Flammable liquids such as cleaning solvents, aerosols,
paint thinners, adhesives, gasoline and propane must
be handled and stored with extreme care. These
ammable liquids emit ammable vapors and when
exposed to an ignion source can result in a re
hazard or explosion. Flammable liquids should not be
used or stored in the vicinity of this or any other gas
appliance.
• DO NOT operate the water heater without the front
panel installed. The front panel should only be
removed for service/maintenance or replacing internal
components.
• BURN HAZARD. Hot exhaust and vent may cause
serious burns. Keep away from the water heater. Keep
small children and animals away from the water
heater.
• Hot water outlet pipes leaving the water heater can be
hot to touch.
• Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any other
appliance.
Install the vent system per local and naonal codes.
• Do not install the water heaters above 10,200 
(3,109 m).
• Do not obstruct combuson air to the water heaters.
• Failure to properly vent this appliance can result in
death, personal injury and/or property damage.
• Rinnai recommends that every home have a carbon
monoxide (CO) alarm in the hallway near bedrooms in
each sleeping area. Check baeries monthly and
replace them annually.
The following precauons apply to the installer and consumer. Read and follow all instrucons in this secon.
DO NOT adjust the internal gas valve. The design is such that adjustment is not
required. Warranty will be voided if the internal gas valve is adjusted.
WARNING
Safety Precauons