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Rheem RMTG-74PV N User Manual

Rheem RMTG-74PV N
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Indoor Water Heater
Outdoor Water Heater
AP13877-1 (08/07)
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.
!
WARNING: If the information in these instructions is not followed exactly,
a fire or explosion may result, causing property damage, personal injury or death.
!
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 assistance.
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.
Recognize this symbol as an indication of Important Safety
Information!
California Proposition 65 Warning: This product contains
chemicals known to the State of California to cause cancer, birth
defects or other reproductive harm.
!
!
Use & Care Manual
With Installation Instructions for the Installer
Printed in Japan
Tankless Water Heater
D
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N
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Warning: This water heater is not suitable
for use in manufactured (mobile) homes!
!
Indoor and Outdoor Gas
CERTIFIED
R
31-51905-001
Paloma:
PH-28 RIFS (N,P)
PH-28 ROF (N,P)
PH-28 CIFS (N,P)
PH-28 COF (N,P)
Paloma:
PTG-74PV(N,P)
PTG-74X(N,P)
Rheem:
RTG-74PV(N,P)
RTG-74X(N,P)
Richmond:
RMTG-74PV(N,P)
RMTG-74X(N,P)
Ruud:
RUTG-74PV(N,P)
RUTG-74X(N,P)
Rheem/Ruud
GT-199PV(NP)
1
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
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Rheem RMTG-74PV N Specifications

General IconGeneral
Fuel TypeNatural Gas
Maximum Flow Rate7.4 GPM
Flow Rate7.4 GPM
Energy Factor0.82
Thermal Efficiency82%
Energy Efficiency0.82 Energy Factor
VentingDirect Vent
TypeTankless Gas Water Heater

Summary

FOR YOUR SAFETY!

WHAT TO DO IF YOU SMELL GAS

Immediate actions to take upon smelling gas for safety.

WATER TEMPERATURE SETTING

NATURAL GAS AND LIQUEFIED PETROLEUM MODELS

GENERAL SAFETY PRECAUTIONS

OUTDOOR WATER HEATER INSTALLATION

INDOOR WATER HEATER INSTALLATION

Combustion and Ventilation Air (Indoor Water Heater Only)

Requirements for adequate air supply for indoor heater operation.

INDOOR WATER HEATER VENTING

Venting Requirements and Lengths

Comprehensive guide to venting requirements, lengths, and materials.

VENT TERMINAL LOCATION

INDOOR WATER HEATER WALL THIMBLE INSTALLATION

CONTINUING INDOOR INSTALLATION

WATER HEATER MOUNTING AND CONNECTIONS

Water Supply Connections

Guidelines for proper connection of water inlet and outlet lines.

WATER HEATER RELIEF VALVE INSTALLATION

Relief Valve Requirements

Requirements and installation procedures for the pressure relief valve.

GAS SUPPLY AND HIGH ALTITUDE INSTALLATION

Gas Supply Connection

Instructions for connecting the gas supply and related safety checks.

Leak Testing Procedures

Procedures for testing all gas connections for leaks.

MAIN REMOTE CONTROL INSTALLATION

REMOTE CONTROL ELECTRICAL CONNECTION

Electrical Connection Requirements

Details on power supply requirements and wiring for the water heater.

TYPICAL WATER HEATER INSTALLATION

WATER HEATER PIPE INSULATION

LIGHTING THE WATER HEATER

OPERATING INSTRUCTIONS

Step-by-step procedure for safely starting and operating the water heater.

OPERATING THE WATER HEATER

Operational Safety Precautions

Essential safety rules to follow during operation.

Water Temperature Setting Adjustment

How to set and adjust the water temperature for optimal use.

WATER HEATER DRAINING AND FREEZE PROTECTION

TROUBLESHOOTING AND SERVICE CALLS

Troubleshooting Tips

A guide to identifying and resolving common operational problems.

ERROR CODE GUIDE

SERVICE AND MASSACHUSETTS REGULATIONS

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