User Guide

RH180 Manual 9
Locaon
This water heater is not approved for use in manufactured (mobile) homes or outdoor installaons.
Ac:
Installaon of the water heater must be accomplished in such a manner that if the tank or any connecon should
leak, the ow of water will not cause damage to the structure. For this reason, it is not advisable to install the
water heater in an ac or upper oor. When such locaons cannot be avoided, a suitable drain pan should be
installed under the water heater. (See drain pan below)
Garage:
Although this water heater is equipped with a ammable vapor sensor, gasoline and other ammable substances
should not be stored or used in the same vicinity or area of the water heater or any other appliance that may
produce a spark or open ame.
It is not required to posion this water heater on a stand as this water heater complies with the FVIR
requirements and the burner and igniter are posioned greater than 18 inches from the base of the unit.
This water heater must be posioned or located as to not be subject to damage by a moving vehicle.
Refer to local code for installaon requirements in a garage.
Crawl Space:
When installing this water heater in a crawl space with a dirt oor, posion the water heater on a solid concrete
plaorm, or base to avoid damage to the unit. (Do not use wood)
Drain Pan: If the water heater is installed in a locaon that could result in damage to the home or structure
precauons must be taken to protect the property from water damage. In the event of a tank or component
failure, an appropriately sized pan must be installed under the water heater. The pan must drain with a
minimum diameter ¾” connecon and shall be drained per local code requirements.
Stand: Depending on local code, a stand may not be required due to the ignion source being over 18” from
the base of the appliance.
Alcove or closet:
See clearance requirements and combuson air requirements.
Insulaon Blanket:
This water heater meets or exceeds the Naonal Appliance Energy Conservaon Act standards with respect to
insulaon and standby losses. If an insulaon blanket is sll desired, the following procedure must be followed.
a. Maintain an adequate distance from the vent.
b. Do not cover the front door of the tankless engine or the lower enclosure of the assembly.
c. Do not cover the combuson air grill located on the front door of the tankless engine.
d. Do not obstruct the operaon of the pressure relief valve.
e. Obtain new warning labels from the manufacturer to place on the blanket, directly over the exisng
labels.
f. Frequently inspect the blanket to ensure the insulaon blanket has not been disturbed.