Tankless Water Heater

Use & Care Manual

With Installation Instructions for the Installer

Indoor and Outdoor Gas

! Warning: This water heater is not suitable for use in manufactured (mobile) homes!

		The purpose of this manual is twofold: one, to provide the installer with
		the basic directions and recommendations for the proper installation and
		adjustment of the water heater; and two, to the owner–operator, to
		explain the features, operation, safety precautions, maintenance and
		troubleshooting of the water heater. This manual also includes a parts
		list.
		It is very important that all persons who are expected to install, operate
		or adjust this water heater read the instructions carefully so they may
		understand how to perform these operations. If you don’t understand
		these instructions or any terms within it, seek professional advice.
		Any questions regarding the operation, maintenance, service or
		warranty of this water heater should be directed to the seller from whom
		it was purchased. If additional information is required, refer to the
		section on If You Need Service.
		Do not destroy this manual. Please read carefully and keep in a safe
		place for future reference.
Indoor Water Heater		!	Recognize	this symbol as	an	indication of Important Safety

			Information!

		!	California Proposition 65 Warning: This product contains
	Outdoor Water Heater		chemicals known to the State of California to cause cancer, birth
			defects or other reproductive harm.
!	WARNING: If the information		in these	instructions	is	not followed exactly,
	a fire or explosion may result, causing property damage, personal injury or death.

!FOR YOUR SAFETY!

—Do not store or use gasoline or other flammable vapors or liquids or other combustible materials in the vicinity of this or any other appliance. To do so may result in an explosion or fire.

—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.

●Do not return to your home until authorized by the gas supplier or fire department.

—Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or death. Refer to this manual. Installation and service must be performed by a qualified installer, service agency or the gas supplier.

ESIG
D	N

31-80176

Printed in Japan

CERTIFIED

CERT

IFIED

AP14016 (04/06)

RUTG2-42(PVN)(PVP), RUTG2-53-(PVN)(PVP)(XN)(XP), RTG2-53-(PVN)(PVP)(XN)(XP), PH-16(FISN)(FISP), RMTG2-53-(PVN)(PVP)(XN)(XP) specifications

Rheem’s innovative line of tankless water heaters, including the PTG2-42(PVN)(PVP), RTG2-42(PVN)(PVP), PH20R-(IFSN)(IFSP)(OFN)(OFP), RMTG2-42(PVN)(PVP), and RMTG2-53-(PVN)(PVP)(XN)(XP), represents a significant advancement in residential and commercial water heating technologies. These models are designed to deliver hot water on demand, ensuring efficiency and convenience while minimizing energy consumption.

One of the standout features of these Rheem models is their energy efficiency. Employing advanced condensing technology, they are capable of converting up to 98% of the energy consumed into hot water. This impressive efficiency reduces utility bills and makes them an environmentally friendly choice compared to traditional tank water heaters.

The PTG2 and RTG2 series are particularly versatile, accommodating various installation needs. Their compact design allows for both indoor and outdoor installation, making them ideal for homes with limited space. Additionally, they are equipped with a multiple venting option, which provides flexibility in installation locations.

The PH20R series incorporates Rheem’s proprietary modeling and simulation technologies to optimize performance. These models feature enhanced safety functions and user-friendly digital controls, allowing homeowners to easily set and monitor their water temperatures. The ease of use extends to maintenance as well, as many components are accessible for routine checks and cleaning.

Another significant advantage of the RMTG2 models is their integrated Wi-Fi connectivity, enabling users to manage their water heating systems remotely through Rheem’s mobile app. This smart technology provides real-time data, alerts, and allows for temperature adjustments, ensuring that users always have hot water when they need it.

Rheem’s tankless water heaters also boast a robust warranty, a testament to their durability and reliability. With options that cater to various household sizes and hot water needs, these models can provide continuous hot water for homes with multiple bathrooms and heavy consumption.

For those seeking cost-effective, efficient, and smart water heating solutions, the Rheem PTG2, RTG2, PH20R, RMTG2-42, and RMTG2-53 series stand out as top contenders in the market. Their combination of advanced technology, energy savings, and user-friendly features position them as industry leaders, providing long-term benefits for any homeowner.