Direct Vent Tankless Water Heater
Installation and Operation Manual
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire department.
— Installation and service must be performed by a licensed professional.
If the information in these instructions is not followed exactly, a fire or explosion
may result causing property damage, personal injury, or death.
WARNING
READ ALL OF THE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR OPERATING THIS WATER HEATER.
This manual provides information on the installation, operation, and maintenance of the water heater. For proper
operation and
safety
, it is important to follow the instructions and adhere to the safety precautions.
A licensed professional must install the water heater according to the exact instructions in this manual.
The consumer must read the entire manual to properly operate the water heater and to have regular maintenance
performed.
ANSI Z21.10.3 ● CSA 4.3
FOR INDOOR APPLICATIONS ONLY
RUC80i
.................. REU-KBD2530FFUD-US
RUC90i
.................. REU-KBD2934FFUD-US
RUC98i
.................. REU-KBD3237FFUD-US
FOR OUTDOOR APPLICATIONS ONLY
RU80e
................... REU-KB2530WD-US
RU90e
................... REU-KB2934WD-US
RU98e
................... REU-KB3237WD-US
