Installation / Operation Instruction Manual

7
Key to symbols and safety instructions
RTG-K-199/160N/X2 – 6 720 813 642 (2022/06)
DANGER:
Electric shock!
▶ Field wiring connections and
electrical grounding must comply
with local codes, or in the absence of
local codes, with the latest edition of
the National Electric Code, ANSI/
NFPA 70, or in Canada, all electrical
wiring must comply with the local
codes and the Canadian Electrical
Code, CSA C22.1 Part 1.
DANGER:
Electric shock!
Shock hazard: line voltage is present.
▶ Before servicing the water heater,
unplug power supply cord from outlet.
Failure to do so could result in severe
personal injury or death.
WARNING:
Damage to the appliance from over
pressure.
▶ The heater must be disconnected
from the gas supply piping system
during any pressure testing of that
system at test pressures greater than
or equal to 0.5 psi (14" W.C.).
NOTICE:
▶ The appliance should be located in an
area where leakage of the heater or
connections will not result in damage
to the area adjacent to the appliance
or to lower floors of the structure.
When such locations cannot be
avoided, it is recommended that a
suitable drain pan, adequately
drained, be installed under the
appliance. The pan must not restrict
combustion air flow.
WARNING:
▶ The maximum inlet gas pressure must
not exceed the value specified by the
manufacturer and the minimum value
listed is for the purpose of input
adjustment.
NOTICE:
▶ If a water heater is installed in a closed
water supply system, such as one
having a backflow preventer in the
cold water supply line, means shall be
provided to control thermal
expansion. Contact the water
supplier or local plumbing inspector
on how to control this situation.