Rheem CRTGH-95X Series User manual

94% CONDENSING
TANKLESS
WATER HEATER
AP15897 (03/11) Printed in USA
* All models available for natural gas (N) or
propane gas (P) usage.
Do not destroy manual. Please read
carefully and keep in a safe place
for future reference.
CERTIFIED
R
Direct Vent Models
Rheem/EcoSense
CRTGH-95DV*
CRTGH-84DV*
CECOH200DV*
CECOH160DV*
Ruud
CRUTGH-95DV*
Paloma
CPHH-32RDV*
CPHH-25RDV*
Reliance
RHCGH200DV*
RHCGH160DV*
Outdoor Models
Rheem/EcoSense
CRTGH-95X*
CRTGH-84X*
CECOH200X*
CECOH160X*
Ruud
CRUTGH-95X*
Paloma
CPHH-32ROF*
CPHH-25ROF*
WARNING:
If the information in these in-
structions is not followed exact-
ly, a fire or explosion may result,
causing death, personal injury,
or property damage.
For Your Safety!
• D o not store or use gasoline
or other flammable vapors and
liquids in the vicinity of this or
any other appliance. To do so
may result in an explosion or
fire.
• Installation and service must
be performed by a qualified
installer, service agency, or the
gas supplier.
What to Do If
You Smell Gas
• D o not try to light any
appliance.
• D o 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.
• I f you cannot reach your
gas supplier, call the fire
department.
• D o not return to your home until
authorized by the gas supplier
or fire department.
D
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®
USE AND CARE MANUAL
With Installation Instructions
for the Installer
Water Heaters for Other Than
Recreational Vehicle Installation Only

Important Safety Information
Safety Precautions ..................................................................... 2–8
Product Information
Product Information ........................................................................ 8
Specifications ........................................................................... 9, 10
General Descriptions ............................................................... 11, 12
Using Your Water Heater
Setting the Water Temperature .................................................13, 14
Caring for Your Water Heater
Water Heater Inspections ....................................................... 15, 16
Care and Cleaning .................................................................. 17, 18
Preventive Maintenance ............................................................... 19
Draining the Water Heater ........................................................20–22
Freeze Protection ......................................................................... 22
Vacation and Extended Shutdown ............................................... 23
Troubleshooting Chart ............................................................ 23, 24
Service Error Code Chart ....................................................... 25, 26
If You Need Service
Call for Assistance ........................................................................ 26
Safety
Installation Instructions
Standards Compliance .................................................................. 28
Choosing a Location .................................................................28, 29
Product Inspection ......................................................................... 30
Water Heater Installation ......................................................... 30–33
Venting ..................................................................................... 34–46
Water Supply ............................................................................47-51
Condensate ................................................................................... 51
Gas Supply ............................................................................... 52-56
Electrical Wiring ........................................................................ 56-60
Remote Control Installation .......................................................59,60
Insulation Blankets ........................................................................ 61
Installation Checklist ...................................................................... 62
Piping for Space Heaters .............................................................. 63
Lighting the Water Heater ......................................................... 64-65
Setting the Water Temperature ..................................................66-68
High-Altitude Adjustments ........................................................ 68-69
Parts Replacement ................................................................... 70-71
2
CONTENTS
READ THE SAFETY INFORMATION
Your safety and the safety of others are very important.
There are many important safety messages in this manual
and on your appliance. Always read and obey all safety
messages.
This is the safety alert symbol. Recognize this
symbol as an indication of Important Safety
Information! This symbol alerts you to potential
hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol
and either the word “DANGER,” “WARNING,” “CAUTION,”
or “NOTICE.”
2
These words mean:
IMPORTANT SAFETY INFORMATION
• This water heater is not approved for use in manufactured
(mobile) homes!
• Improper installation, adjustment, alteration, service,
or maintenance can cause death, personal injury, or
property damage. Follow the instructions in this manual.
READ ALL INSTRUCTIONS
BEFORE USING.
Be sure to read and understand the entire Use and Care
Manual before attempting to install or operate this water
heater. It may save you time and money. Pay particular
attention to the Safety Instructions. Failure to follow these
warnings could result in death or serious bodily injury.
Should you have problems understanding the instructions in
this manual, or have any questions, STOP and get help from
a qualified service technician or the local gas utility.
WARNING:
California Proposition 65
This product contains chemicals known to the state
of California to cause cancer, birth defects, or other
reproductive harm.
WARNINGS:
DANGER: An imminently hazardous situation
that will result in death or serious injury.
NOTICE: Attention is called to observe a specified
procedure or maintain a specific condition.
CAUTION: A potentially hazardous situation that
may result in minor or moderate injury.
WARNING: A potentially hazardous situation
that can result in death or serious injury and/or damage to
property.

Safety
3
IMPORTANT SAFETY INFORMATION
DANGER
FLAMMABLES
Flammable Vapors
Water heater has a main
burner flame.
The main burner flame:
1. which can come on
at any time and
2. will ignite flammable
vapors.
Vapors:
1. cannot be seen,
2. are heavier than air,
3. go a long way on the
floor and
4. can be carried from
other rooms to the
main burner flame by
air currents.
Vapors from flammable
liquids will explode and
catch fire causing death or
severe burns.
Do not use or store flammable
products such as gasoline,
solvents or adhesives in the
same room or area near the
water heater.
Keep flammable products:
1. far away from heater,
2. in approved containers,
3. tightly closed and
4. out of children's reach.
Installation:
Do not install water heater
where flammable products will
be stored or used unless the
main burner flame is at least
18" above the floor. This will
reduce, but not eliminate, the
risk of vapors being ignited
by the main burner flame.
Read and follow water heater warnings and instructions. If
owners manual is missing, contact the retailer or manufacturer.
Water Heater Venting Safety
3
DANGER: Failure to install and properly
vent the water heater to the outdoors as outlined in the
“Venting” section of the Installation Instructions in
this manual will result in death from fire, explosion, or
asphyxiation from carbon monoxide. NEVER operate this
water heater unless it is properly vented and has the air
supply piping properly installed and terminated to the
outdoors.
Be sure to inspect the vent terminal, the air intake, and
the vent system on the water heater for proper installation
at initial start-up and at least annually thereafter. Refer to
the “Care and Cleaning” section of this manual for more
information regarding vent system inspection.
WARNINGS:
• Gasoline and other flammable liquids, materials,
and vapors (including paint thinners, solvents, and
adhesives) are extremely dangerous. DO NOT handle,
use, or store gasoline or other flammable or combustible
materials anywhere in the vicinity of a water heater
or any other appliance. Be sure to read and follow the
labels on the water heater, as well as the warnings
printed in this manual. Failure to do so can result in
death, bodily injury, or property damage.
• Combustible construction refers to adjacent walls and
ceilings and should not be confused with combustible
or flammable products and materials. Combustible
materials, such as clothing, cleaning materials, or
flammable liquids, should never be stored in the vicinity
of this or any gas appliance. Fire or explosion can occur
causing death, personal injury, and/or product damage.
See page 29 for clearances to combustible materials.
• Follow vent manufacturer’s instructions for venting
installation, including additional clearances from
combustibles, to avoid conditions that can lead to
death, personal injury, and/or property damage.
• Use tankless water heater manufacturer-approved
Schedule 40 PVC (foam core is not permitted at any
time), Schedule 80 PVC, CPVC, ABS, or UL 1738-listed
Category III Stainless Steel. No other vent material is
permitted. For Canada, installations must follow ULC
S636 for exhaust venting.
• Moisture in the flue gas will condense as it leaves the
vent terminal. In cold weather this condensate can
freeze on the exterior wall, under the eaves, and on
surrounding objects. Some discoloration to the exterior
of the building is to be expected. However, improper
location or installation may result in severe damage to
the structure or exterior finish of the building.
• For multiple-unit installation, a minimum distance
between vent terminations must be maintained to prevent
recirculation of vent gases. See page 39 for information
on venting and clearances to multiple terminations.
CAUTIONS:
• Ensure that the appliance vent is securely glued and
attached to the vent connection on the top of the water
heater. DO NOT USE SCREWS.
• D o not operate without the condensate drain connected
and routed to a proper drain.

4
IMPORTANT SAFETY INFORMATION
Water Supply Safety
DANGERS:
• W A TER TEMPERATURE SETTINGS
– Safety and energy conservation
are factors to be considered when
selecting the water temperature
setting of a water heater’s remote
control. Water temperatures above
125°F (52°C) can cause death or
severe burns from scalding. Be sure
to read and follow the warnings
outlined on the pictured label.
• There is a hot water scald potential
if the water temperature is set
too high. Households with small
children, the disabled, or elderly
persons may require a 120°F (49°C)
or lower temperature setting to
prevent contact with “HOT” water.
• Before manually operating the relief
valve, make certain no one will be
exposed to the danger of the hot
water released by the valve. The
water may be hot enough to create
a scald hazard. The water should
be released into a suitable drain to
prevent injury or property damage.
• Failure to perform the recommended
Routine Preventive Maintenance
can harm the proper operation
of this water heater, which can
cause carbon monoxide dangers, excessive hot
water temperatures, and other potentially hazardous
conditions.
DANGER
!
HOT
Water temperature over 125°F (52°C)
can cause severe burns instantly or
death from scalds.
Children, disabled and elderly are
at highest risk of being scalded.
See instruction manual before
setting temperature at water
heater.
Feel water before bathing or
showering.
Temperature limiting valves are
available, see manual.
BURN
CAUTIONS:
• This water heater must only be used
with the following water supply system
conditions:
– With clean, potable water free of
corrosive chemicals, sand, dirt, or other
contaminants.
– With inlet water temperatures above 32°F
(0°C), but not exceeding 120°F (49°C).
– D O NOT reverse the hot and cold water
connections. The water heater will not
operate.
• Even when drained properly, a small amount
of water will remain in the water heater.
In cold weather conditions, this water can
freeze. If this happens, allow the defrost
protection on the heater at least 30 minutes
to melt the frozen water or the water heater
may not work properly.
NOTICE: The factory setting allows
operating temperatures between 100°F
(38°C) and 120°F (49°C). Temperatures of
85°F (29°C) and up to 140°F (60°C) can be
achieved with the MAIN (UMC-117) remote
control. Temperatures of 85°F (29°C) can be
achieved with the Bath (USC-117 or USC2-
117) remote control. Only qualified service
personnel should perform this adjustment. Only factory-
authorized remote control(s) should be used.
WARNINGS:
• IMPORTANT: Do not apply heat to the HOT or COLD water
connections. If sweat connections are used, sweat
tubing to adapter before fitting adapter to the water
connections on heater. Any heat applied to the water
supply fittings will permanently damage the internal
components of the water heater.
• I n case the pipe insulation is not rated for the
appropriate weather conditions, install electric heat
tracing or equivalent to prevent freezing of the pipes.
Do not insulate or block the drain valve on the hot outlet
fitting. If the pipes are allowed to freeze, the water
heater and the pipes may malfunction or leak due to
freezing water.
• Failure to drain the water heater as described on page
20 can cause serious personal injuries from scalding
and/or damage the water heater.
Time/Temperature
Relationship in Scalds
120°F (49°C) More than 5 minutes
125°F (52°C) 1 1/2 to 2 minutes
130°F (54°C) About 30 seconds
135°F (57°C) About 10 seconds
140°F (60°C) Less than 5 seconds
145°F (63°C) Less than 3 seconds
150°F (66°C) About 1 1/2 seconds
155°F (68°C) About 1 second
Table courtesy of Shriners Burn Institute
Water Temperature Time to Produce
a Serious Burn
Temperature Conversion Chart °F/°C
85 100 102 104 106 108 110 112 114 116 118 120 125 130 140 °F
29 38 39 40 41 42 43 44 46 47 48 49 52 54 60 °C
Safety

5
IMPORTANT SAFETY INFORMATION
WARNINGS:
• The installation of gas piping must conform to local
utility company requirements and/or in the absence of
local codes, use the latest edition of National Fuel Gas
Code (NFGC), ANSI Z223.1/NFPA 54, or CAN/CSA B149.1,
Natural Gas and Propane Installation Code.
• Install a gas pressure regulator in the gas supply line.
The regulator should not exceed the maximum supply
pressure. DO NOT use an industrial-type gas regulator.
• Should overheating occur or the gas supply fail to shut
off, turn off the manual gas control valve to the water
heater.
CAUTIONS:
• D o not attempt repair of electrical wiring, gas piping,
remote control, burners, vent connectors, or other safety
devices. Refer repairs to qualified service personnel.
• Turn off the manual gas shut-off valve if the water heater
has been subjected to overheating, fire, flood, physical
damage, or if the gas supply fails to shut off.
• D o not turn on the water heater unless the water and gas
supplies are completely opened.
Natural Gas and Liqueed Petroleum Safety
DANGERS:
• Never attempt to convert the water heater from natural
gas to L P. The water heater must only use the fuel type
in accordance with listing on data plate—natural gas
for natural gas units and LP for LP units. Any other fuel
usage will result in death or serious personal injury from
fire and/or explosion. This water heater is not certified
for any other fuel type.
• Both natural gas and propane (LP) have an odorant added
to aid in detecting a gas leak. Some people may not
physically be able to smell or recognize this odorant. If
you are unsure or unfamiliar with the smell of natural
gas or L P, ask the gas supplier. Other conditions, such
as “odorant fade,” which causes the odorant to diminish
in intensity, can also hide or camouflage a gas leak.
• Water heaters using LP gas are different from natural
gas models. A natural gas water heater will not function
safely on LP and vice versa.
• L P must be used with great caution. It is heavier than air
and will collect first in lower areas, making it hard to
detect at nose level.
• Before attempting to light the water heater, make sure
to look and smell for gas leaks. Use a soapy solution
to check all gas fittings and connections. Bubbling at
a connection indicates a leak that must be corrected.
When smelling to detect a gas leak, be sure to also sniff
near the floor.
• Gas detectors are recommended in LP and natural
gas applications and their installation should be
in accordance with the detector manufacturer’s
recommendations and/or local laws, rules, regulations,
or customs.
• Combustible materials, such as clothing, solvents,
cleaning materials, or flammable liquids, must not be
placed in the vicinity of the water heater.
• I f a gas leak is present or suspected:
– Do not attempt to find the cause yourself.
– Never use an open flame to test for gas leaks. The
gas can ignite resulting in death, personal injury, or
property damage.
– Follow the steps listed under “What to Do If You
Smell Gas” found on the front cover of this manual.
Safety

6
IMPORTANT SAFETY INFORMATION
Before operating this water heater, be sure to read and
follow the instructions on the label pictured below and all
other labels on the water heater, as well as the warnings
printed in this manual.
Failure to do so can result in unsafe operation of the water
heater, resulting in death, personal injury, or property dam-
age. Should you have any problems reading or following
the instructions in this manual, STOP and get help from a
qualified service technician.
WARNING : If you do not follow these instructions exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
FOR YOUR SAFETY READ BEFORE OPERATING
1.STOP! Read the safety information above on this label.
2.Turn off all electric power to the appliance.
3.Do not attempt to light the burner by hand.
4.Turn the Gas Shutoff Valve located on the outside of the unit
clockwise to the "OFF" position.
5.Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow "B" in
the safety information above on this label. If you don't smell gas, go to the next step.
6.Turn the Gas Shutoff Valve located on the outside of the unit counterclockwise to
the "ON" position.
7.Turn on all electric power to the appliance.
8.If the appliance will not operate, follow the instructions "To Turn Off Gas To Appliance"
and call your service technician or gas supplier.
TO TURN OFF GAS TO APPLIANCE
1 . Turn off all electric power to the appliance if service is to be performed.
2 . Turn the Gas Shutoff Valve located on the outside of the unit clockwise to the "OFF" position.
GAS SHUTOFF
VALVE
OPEN CLOSE
OPERATING INSTRUCTIONS
Safety

7
IMPORTANT SAFETY INFORMATION
Electrical Safety
DANGER: Shock Hazard – Make sure the
electrical power to the water heater is off to avoid
electric shock that will result in death or serious personal
injury.
WARNINGS:
• For your safety, the information in this manual must
be followed to minimize the risk of fire, explosion, or
electric shock that can result in death, personal injury,
and/or property damage.
• 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 Electrical
Code, ANSI/NFPA 70, or in Canada, Canadian Electrical
Code, CAN/CSA C22.1, Part 1.
CAUTIONS:
• Label all wires prior to disconnecting for service. Wiring
errors can cause dangerous and improper operation.
Verify correct operation after servicing.
• For your safety, burner inspection and cleaning should
be performed only by qualified service personnel.
• Make certain the power to the water heater is OFF
before removing the unit cover panel. Exposed electrical
components and moving parts can cause personal
injuries.
• For your safety, DO NOT attempt repair of electrical
wiring, gas piping, remote control, burners, vent
connectors, or other safety devices. Refer repairs to
qualified service personnel.
Safety
California law requires that water heaters must be braced,
anchored, or strapped to resist falling or horizontal
displacement due to earthquake motions. For water
heaters up to 52-gallon capacity, a brochure with generic
earthquake bracing instructions can be obtained from:
Office of the State Architect, 1102 Q Street, Suite 5100,
Sacramento, CA 95814, or you may call
916-445-8100 or ask a water heater dealer.
However, applicable local codes shall govern installation.
For residential water heaters of a capacity greater than
52 gallons or tankless-style, consult the local building
jurisdiction code for acceptable bracing procedures.
FOR INSTALLATIONS IN THE STATE OF CALIFORNIA

8
IMPORTANT SAFETY INFORMATION
General Installation and Maintenance Safety
WARNINGS:
• This water heater must be installed in accordance
with these instructions, local codes, utility company
requirements and/or in the absence of local codes,
use the latest edition of the American National
Standard/National Fuel Gas Code (NFGC), ANSI Z223.1
and National Fire Protection Association, NFPA 54, or
in Canada, CAN/CSA B149.1, Natural Gas and Propane
Installation Code, and the latest edition of the
National Electrical Code, ANSI/NFPA 70, or in Canada,
Canadian Electrical Code, CAN/CSA C22.1, Part 1.
• For your safety, DO NOT attempt to disassemble this
water heater for any reason. Improper adjustments,
alterations, service, or maintenance can cause death,
personal injury, or property damage.
SAVE THESE INSTRUCTIONS
SAFETY PRECAUTIONS:
• Read this manual entirely before installing and/or
operating the water heater.
• Use this water heater only for its intended purpose as
described in this Use and Care Manual.
• Have the installer show you the location of the gas shut-
off valve and how to shut it off if necessary. Turn off
the manual shut-off valve if the water heater has been
subjected to overheating, fire, flood, physical damage,
or if the gas supply fails to shut off.
• B e sure your water heater is properly installed
in accordance with local codes and the provided
installation instructions.
• D o not attempt to repair or replace any part of your
water heater unless it is specifically recommended
in this manual. All other servicing should be referred to
a qualified service technician.
PRODUCT INFORMATION
For Your Records
Write down and save the following product
information along with the original sales slip and/or
cancelled check. The model and serial numbers
can be found on the top label on the right side of
the water heater.
MODEL NUMBER:
SERIAL NUMBER:
DATE OF INSTALLATION:
INSTALLING COMPANY/PHONE NUMBER:
PLUMBING CONTRACTOR/PHONE NUMBER:
See page 26 for additional service information.
Read This Manual
Inside you will find many helpful hints on how to use and
maintain your water heater properly. A little preventive care
on your part can save you time and money over the life of
your water heater.
You’ll find many answers to common problems in the
Troubleshooting Chart on pages 23 and 24. Always refer to
this chart before calling for service. Referring to this chart
before calling may answer your question(s) and eliminate the
need for service.
Preoperating Checklist
Is the main gas valve to the water heater turned on?
Does the water heater have its own circuit breaker or
fuse?
Does the water heater’s electronic ignition light?
Is the water temperature set to a safe temperature?
Is the water heater connected to a floor drain?
Is the water heater properly vented to the outside?
Is the water heater installed in a safe location away
from flammable materials and/or freezing conditions?
Product Information Safety

9
PRODUCT INFORMATION
Product Information
303/8"
(772 mm)
275/8"
(702 mm)
33/8"
(86 mm)
51/2"
(140 mm)
61/4"
(159 mm)
177/8"
(454 mm)
185/8"
(473 mm)
93/4"
(248 mm)
21/4"
(59 mm)
51/2"
(140 mm)
61/8"
(156 mm)
21/8"
(54 mm)
37/8"
(98 mm)
27/8"
(73 mm)
41/8"
(105 mm)
91/2"
(241 mm)
11/2"
(38 mm)
Specications – Direct-Vent Models
17 7/8"
(454 mm)
18 5/8"
(473 mm)
27 5/8"
(702 mm)
93/4"
(248 mm)
21/4"
(59 mm)
51/2"
(140 mm)
61/8"
(156 mm)
21/8"
(54 mm)
37/8"
(98 mm)
27/8"
(73 mm)
41/8"
(105 mm)
91/2"
(241 mm)
11/2"
(38 mm)
Specications – Outdoor Models

10
PRODUCT INFORMATION
Specications
BRAND 157k BTU MODELS 199.9k BTU MODELS
Rheem
EcoSense
Ruud
Reliance
Paloma
CRTGH-84DV* and CRTGH-84X*
CECOH160DV* and CECOH160X*
RHCGH160DV*
CPHH-25RDV* and CPHH-25ROF*
CRTGH-95DV* and CRTGH-95X*
CECOH200DV* and CECOH200X*
CRUTGH-95DV* and CRUTGH-95X*
RHCGH200DV*
CPHH-32RDV* and CPHH-32ROF*
Appliance Type Indoor (DV) & Outdoor (X) Indoor (DV) & Outdoor (X)
Electrical Rating 120V/60Hz 120V/60Hz
Type of Gas* NG LP NG LP
Inlet Gas Pressure
Max. (in. of w.c.) 10.5 13.0 10.5 13.0
Inlet Gas Pressure
Min. (in. of w.c.)
4.0 8.0 4.0 8.0
Manifold Pressure
(in. of w.c. at max. input)
2.5 Indoor
2.6 Outdoor 3.1 3.9 Indoor 4.2 Outdoor
4.6 Indoor
4.7 Outdoor
Maximum Water Supply Pressure (psi) 150 150
Maximum Input Rate (btu/hr) 157,000 199,900
Minimum Input Rate (btu/hr) 11,000 11,000
Recover Rating (gal/hr) 178 226
Shipping Weight (lbs) 81 81
Minimum Activation Flow Rate (gpm) 0.40 0.40
Extinction Flow Rate (gpm) 0.25 0.25
Hot Water Capacity (gpm @ 35°F rise) 8.5 9.5
Hot Water Capacity (gpm @ 77°F rise) 3.9 4.9
Default Temperature Setting (no controller) 120 120
Temperature Default Setting 100 100
Minimum Temperature Setting (°F) 85 85
Efficiency Rating (Energy Factor) 0.94 0.94
Electrical Consumption
Normal 100 W 100 W
Standby 3–5 W 3–5 W
Antifreeze Protection 200 W 200 W
Vent Size (Indoor Only) 2" or 3" 2" or 3"
Water Connections 3/4" NPT 3/4" NPT
Gas Connection 3/4" NPT 3/4" NPT
Water Supply Pressure 14-150 PSI 14-150 PSI
High Altitude (up to 10,000 ft.) Yes Yes
Multiple-Unit Installation Yes Yes
Safety Devices Overheat Film Wrap, Flame Rod, Water Temperature High-Limit Switch, Flue
Temperature High-Limit Switch, Pressure Relief Valve
Accessories Remote Control, Service Valves, Vent Kits, Pipe Cover, EZ Link, MIC-6, MIC-
185, Recess Box**
*N or NG = natural gas and P or LP = liquefied petroleum
** = Outdoor Only
Product Information

11
PRODUCT INFORMATION
General Descriptions
Typical Direct-Vent Water Heater
(Shown Without Venting)
Product Information
Remote Control
With Power Switch
To Hot Water
Faucet(s)
Drain Valve
Water
Filter
Cold Water Supply
Shut-O Valve
*Note: A exible drain tube can be used
To Suitable
Drain
To Suitable
Drain
Power
Supply
Cord
Union
Union
Manual Gas
Supply Line
Shut-O Valve
Manual Gas
Shut-O Valve
(Supplied)
Condensate
Pipe*
Cap
Sediment Trap
Service
Valve
Relief
Valve
Relief
Valve
(Supplied)

12
PRODUCT INFORMATION
Typical Outdoor Water Heater
(No Venting Required)
Remote Control
With Power Switch
To Hot Water
Faucet(s)
Drain Valve
Water
Filter
Air Inlet
Hard-Wire
Flue
Terminal
Cold Water Supply
Shut-O Valve
Power Supply
Cord
(not supplied)
Union
Union
Manual Gas
Supply Line
Shut-O Valve
Manual Gas
Shut-O Valve
(Supplied)
Cap
Sediment Trap
Service
Valve
Relief
Valve
Relief
Valve
(Supplied)
*Note: A exible drain tube can be used
To Suitable
Drain
To Suitable
Drain
Condensate
Pipe*
This water heater is for OUTDOOR installation only.
DANGER: DO NOT install this water heater indoors or in a confined space. It is designed for outdoor
installation only. Any other type of installation will result in death or serious personal injury.
Product Information

13
Use Instructions
USING YOUR WATER HEATER
WARNING: Flammable vapors can be
drawn by air currents from surrounding areas to
the water heater. Vapors can ignite causing death,
personal injury, or product damage.
• D O NOT store or use flammable or combustible
materials (gasoline, paint thinner, adhesives,
solvents, newspapers, rags, mops, etc.) in the
vicinity of the water heater or any other gas
appliance. If they must be used, open doors and
windows for ventilation, and shut off all gas-burning
appliances, including their pilot lights.
• D O turn off manual gas shut-off valve if water heater
has been subjected to overheating, fire, flood,
physical damage, or if the gas supply fails to shut
off.
• D O NOT turn on water heater unless water and gas
supplies are completely opened.
• D O NOT turn on water heater if cold water supply
shut-off valve is closed.
• I f there is any difficulty in understanding or following
the operating and care instructions in this manual, it
is recommended that you contact a qualified service
technician to perform the work.
Safety Precautions
Setting the Water Temperature
DANGER
!
HOT
Water temperature over 125°F (52°C)
can cause severe burns instantly or
death from scalds.
Children, disabled and elderly are
at highest risk of being scalded.
See instruction manual before
setting temperature at water
heater.
Feel water before bathing or
showering.
Temperature limiting valves are
available, see manual.
BURN
Time/Temperature
Relationship in Scalds
Water Temperature Time to Produce a Serious Burn
120°F (49°C) More than 5 minutes
125°F (52°C) 1 1/2 to 2 minutes
130°F (54°C) About 30 seconds
135°F (57°C) About 10 seconds
140°F (60°C) Less than 5 seconds
145°F (63°C) Less than 3 seconds
150°F (66°C) About 1 1/2 seconds
155°F (68°C) About 1 second
Table courtesy of Shriners Burn Institute
DANGER: Water temperatures above 125°F (52°C) will result
in death and/or severe burns from scalding.
Safety and energy conservation are factors to be considered when
selecting the water temperature setting. The temperature of the water
in the water heater can be regulated by setting the temperature on the
front of the remote control. Be sure to read and follow the warnings
outlined on the pictured label.
The recommended setting for the water temperature is 100°F (38°C).
The remote control has been preset and shipped at the recommended
temperature setting.
Safety factors should be considered whenever altering the water
temperature setting. The chart below may be used as a guide in
determining the proper water temperature for your home.

14
Use Instructions
USING YOUR WATER HEATER
Maximum water temperature occurs while the
water heater burner is on. To determine the water
temperature:
Turn on the hot water faucet and place a thermometer
in the water stream.
NOTICE: Water temperature at the faucet may
vary depending on the season and the length of pipe
from the water heater.
The remote control temperature range is between
100°F (38°C) and 120°F (49°C). To adjust the
temperature to a desired setting, press the UP or
DOWN adjustment button on the face of the remote
control. The new temperature set point will show on
the LED display.
NOTICES:
• The temperature set point on the standard remote
control cannot be increased above
112°F (44°C) when a hot water faucet is in the open
position. To achieve temperatures above 120°F
(49°C) or 85°F (29°C), contact a qualified service
technician. Only factory-authorized remote control(s)
should be used.
• The water heater may not operate with a small
water flow. Increase the water flow and recheck. If
it still does not operate with the hot water faucet
completely open, increase the temperature setting
on the remote control.
Water Heater Facts
DANGER: Water temperatures above 125°F
(52°C) will result in death and/or severe burns from
scalding.
• The hottest-temperature water will be at the faucet
closest to the water heater.
• Always remember to test the water temperature with
your hand before use.
• Always supervise young children or others who are
incapacitated.
• The water heater is equipped with a device that will
shut off the gas supply to the burner if the water
heater exceeds normal operating temperatures.
• Any water heater that has been subjected to fire,
flood, physical damage, or been under water should
be turned off at the manual gas shut-off valve and
not used until it has been checked by qualified
service personnel.
Temperature
Adjustment
Buttons
Power On/Off
Button and
Indicator
LED Temperature
and Error Code
Display
In-Use Indicator
(Lit during operation)
Priority
Indicator
Setting the Water Temperature (cont.)

15
CARING FOR YOUR WATER HEATER
Water Heater Inspections
Venting System
(Direct Vent Only)
The venting system should be inspected periodically to
ensure all of the vent sections are secure and airtight.
Qualified service personnel are familiar with vent
system inspections.
WARNING: Do not operate the water
heater if the vent system shows signs of leaking
exhaust. Leaking exhaust could lead to death,
personal injury, and/or product failure.
For outdoor models, check the air intake and vent
outlet for blockage and/or debris.
Condensate Collector
CAUTIONS:
• Condensate is known to be acidic; refer to federal,
state (provincial), and local codes for proper
handling and discharge methods.
• D o not operate without the condensate collector
drain connected and routed to a proper drain that
can handle corrosive condensate. This could cause
the system to malfunction or fail.
On a regular basis, inspect the condensate drain line
to ensure the condensate is draining properly.
The condensate coming from the water heater is known
to be acidic. The heater features a built-in condensate
neutralizer that uses CaCO3 (calcium carbonate) in rock
form as a medium.
DANGER: Shock Hazard – Make sure the
electrical power to the water heater is off before
removing protective cover. Electric shock will cause
death or serious personal injury.
Periodically check the medium visually to ensure
that it is not depleted and refill accordingly. It is
recommended that you contact a qualified service
technician to perform the work.
Condensate Drain
Outdoor models
Care Instructions

16
CARING FOR YOUR WATER HEATER
Burner
It is recommended the burner be annually inspected by
a qualified service technician.
DANGER: Shock Hazard – Removing the
front cover panel exposes you to live electricity.
Electric shock will cause death or serious personal
injury.
Remove 6 screws and the unit cover panel.
Turn on a hot water faucet.
While the water heater is operating, inspect the
main burner flames through the burner sight glass.
The flames should be blue when the main burner is
firing.
NOTICE: If the flames are not blue or you
observe unusual burner operation, shut off the
water heater and contact a qualified service
technician.
Turn off the hot water faucet and reinstall the unit
cover panel.
4
2
1
Burner
Sight
Glass
3
Water Heater Inspections (cont.)
Care Instructions

17
CARING FOR YOUR WATER HEATER
Care and Cleaning
DANGER: Shock Hazard – Make certain
power to the water heater is OFF before removing
protective cover for any reason. Electric shock will
cause death or serious personal injury.
WARNING: Combustible materials,
such as clothing, cleaning materials, or flammable
liquids, must not be placed against or next to the
water heater. Fire or explosion can occur causing
death, personal injury, and/or product damage.
All care and cleaning to and around the water heater
should only be performed with the water heater turned
off and the electrical power supply disconnected.
Vacuum around the water heater to remove any
dust, dirt, and/or lint buildup.
Clean the water heater and the remote control with
a damp soft cloth and mild detergent. Gently wipe
and completely dry all surfaces.
Check the air intake and vent outlet for blockage
and/or debris.
NOTICE: The air intake requires a minimum of
12 in. (30 cm) of clearance between the air intake
opening and any obstruction.
Clean the water filter monthly, as described below.
Water Filter Cleaning
Turn off the water heater and disconnect the
electrical power supply.
Turn off the water supply to the water heater.
Drain the water heater. See page 20.
1
2
1
Drain Valve
3
Cold Water Supply
Shut-Off Valve
2
3
Outdoor models
Care Instructions

18
CARING FOR YOUR WATER HEATER
CAUTION: Do not tap or force the filter
during removal. This can deform and/or damage the
filter.
Unscrew the water filter from the base of the cold
water inlet line and carefully slide it out of the line.
Clean the water filter under running water. To
remove severe sediment and dirt, use a soft brush.
CAUTION: Do not overtighten the water
filter. Overtightening can deform and/or damage the
filter.
Replace the filter in the cold water inlet line and
tighten until it is snug.
Turn on the water supply, reconnect the electrical
supply, and turn on the water heater.
4
7
5
6
Care and Cleaning (cont.)
Care Instructions

19
CARING FOR YOUR WATER HEATER
Preventive Maintenance
WARNING: Failure to perform routine
preventive maintenance can prevent the water
heater from operating properly. Improper operation
can cause carbon monoxide dangers, excessive
water temperatures, and other potentially hazardous
conditions resulting in death, personal injury, and/or
product damage.
Properly maintaining your water heater will ensure
dependable, trouble-free service.
User Preventive Maintenance
Establish and follow a routine preventive maintenance
program. The following suggested items should be
included in your program.
• The user shall check and clean the water filter
monthly. See “Water Filter Cleaning” on page 17.
WARNING: Hot water is released during
manual operation of the relief valve. Make sure all
people and animals are clear from the area before
performing this check to prevent death, personal
injury, and/or property damage from hot drain water.
• The user shall check the operation of the pressure
relief valve annually. Lifting the lever handle on
the pressure-relief valve opens the valve to flush
hot water through the discharge line to the drain.
After several gallons have drained, release the lever
handle to close the valve and stop draining.
NOTICE: If the pressure relief valve on the
hot water heater discharges periodically, this may
indicate a problem in the water system. Contact the
water supplier or a plumbing contractor to correct
the problem. DO NOT plug the relief valve outlet.
• Inspect and keep the area around the water heater
clear and free of flammable materials, such as
gasoline and other flammable vapors and liquids.
• Visually inspect the water heater for damage and/or
denting. If present, contact a service personnel to
verify proper operation.
• Check for abnormal sound during normal operation
(e.g., hissing or banging noises). Contact a qualified
service technician or plumbing contractor.
• Check all gas and water pipes for leaks. See page
55.
NOTICES:
– DO NOT operate the water heater if you feel
something is wrong with the unit.
– DO NOT allow children to operate or handle
the unit.
• After inspections, maintenance, and/or cleaning,
ensure proper operation by turning on a hot water
faucet.
Professional
Preventive Maintenance
It is recommended that a periodic inspection of the
water heater burner, relief valve, air intake filter,
water filter, and venting system be made by a qualified
service technician.
Relief
Valve
Care Instructions

20
Care Instructions
CARING FOR YOUR WATER HEATER
Draining the Water Heater
WARNING: Failure to follow these draining
instructions can cause serious personal injury from
scalding and/or product damage.
Turn off the water heater by pressing the POWER
ON/OFF button on the control panel.
Close the gas shut-off valve(s).
At least 10 seconds after Step 1, unplug the water
heater or disconnect the power supply at the circuit
breaker box.
Open all hot water faucets. Run the water until it is
COLD; then shut off the faucet.
Close the water shut-off valve.
Using a suitable container to catch the water,
remove the water filter from the base of the cold
water inlet line.
Connect a garden hose to the drain valve in the
hot water outlet line and place the other end in a
suitable drain. Open the drain valve until all the
water has drained from the water heater. Leave
water heater as is until placed back in service.
1
2
3
4
Cold Water Supply
Shut-Off Valve
5
6
7