EZ DELUXE User manual

EZ DELUXE
OPERATION
& INSTALLATION
MANUAL
EZ TANKLESS

EZ DELUXE TANKLESS WATER HEATER SPECIFICATIONS
Maximum Gas Consumption BTU/h
Hot Water Supply at 45f Temperature Rise
LPG (Propane)
NG (Natural Gas)
Ignition System
Electric Supply
Safety Devices
Suitable Inlet Water Pressure
Water Connection
Gas Connection
Exhaust System
87,500
3.4GPM
11” WC
8” WC
Direct Vent w/ Concentric Flue Pipe
Water Controlled Electric Ignition
110V
Flame Sensors ermal Limit Switch ermal
Fuse Fan RPM Sensor Surge Protect Fuse
8-100 PSI
1/2” NPT
3/4” NPT
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL PAGE 01..

1.0 Limited Warranty
2.0 What’s Included?
2.1 Product Features and Benets
3.0 Safety Precautions
3.1 Hot Water Risk
3.2 First Aid
4.0 Initial Setup and Operation
5.0 Recommended Maintenance Procedures
6.0 Troubleshooting
7.0 Informational Drawings
8.0 Contact Us
Note: Please ensure that the contents of this manual have been fully understood prior to installation or operation of this gas
tankless water heater.
TABLE OF CONTENTS
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL PAGE 02.

WHAT IS COVERED?
e EZ Tankless warranty covers any defects in materials or product workmanship when the product is installed
and operated in accordance with written installation instructions contained herein, subject to the terms outlined
within this limited warranty document. is warranty is applicable only to products that are installed by a
state qualied or licensed contractor, or installations approved by EZ Tankless through the return of included
warranty card and documentation demonstrating proof of installation.
HOW LONG DOES COVERAGE LAST?
*Warranty period begins from date of purchase unless proper proof of installation is provided, in which case
warranty period begins from date of installation.
†Warranty only covers labor deemed necessary and performed by EZ Tankless tech support sta at our repair
center in Earl Park, IN.
WHAT WILL EZ TANKLESS PROVIDE?
EZ Tankless will repair or replace the product or any part or component that is considered defective in materials
or workmanship, except as set forth below: EZ Tankless will provide parts with free shipping for most repairs. EZ
Tankless will perform labor and pay shipping costs to repair the product if deemed necessary by EZ Tankless. All
repairs must be performed using genuine EZ Tankless parts.
If EZ Tankless determines that repair of a product is not possible, EZ Tankless will replace with a comparable
product, at EZ Tankless’ discretion. If a component or product returned to EZ Tankless is found to be free
of defects in material or workmanship, or damaged by improper installation or during return shipping, the
warranty claim for product, parts and labor may be denied.
1.0 LIMITED WARRANTY
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL
ITEM
Heat Exchanger
All other parts and components
Reasonable Labor
PERIOD OF COVERAGE
5 Years*
1 Year*
1 Year*†
PAGE 03..

2.0 WHAT’S INCLUDED?
1 x EZ Tankless Water Heater
2 x 1/2” NPT Bushings
1 x 3/4” NPT Bushings
PAGE 04.
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

2.1 FEATURES AND BENEFITS
 • eEZDeluxefeaturesouradvancedsealeddouble-chamberforcedairintake-exhaustsystem
• Fully-automaticoperation.Onceinstalled,simplyturnonthewaterspigotorshower–instanteous
hot water will arrive in a few moments. Aer the tap is turned o, the tankless heater will
extinguish and cease operation
 • KeytouchLCDpanelwitheasytounderstanddisplay
 • Higheciencyconcentricventingsystem.Ourdirectventsystemusesadualchamberedsingle
pipe. Inlet air owing through the outer chamber keeps the exposed pipe cool while outlet
exhaust gases ow through the inner chamber
 • Featuringaproportionalcontrolvalveforbothelectricityandgas,theEZDeluxeselfregulates
gas ow to maintain a constant water temperature
 • Simpleandaestheticallypleasingdesignfeatures–theunobtrusiveunitdesigntsseamlessly
in a variety of locations
 • Advanceelectronicignitionissafer,moreconvenient,andmoreenergyecientthanapilotlight
system
 • Highthermaleciency(88%)
 • Lowwaterpressureignition.eheatercanfunctionaslowas8PSIwaterpressure,makingit
suitable for use at high altitude or for installations using well water with older or less powerful
pumping systems
• Dynamicgasandfancontrolallowsforconsistenttemperaturesinproportiontowaterow
PAGE 05..
Water Outlet
Gas Inlet
Power Cord
Flue Outlet
Water Inlet
Touch Control Panel
Temperature Display
1
7
4
5
3
2
15
26
37
4
7
6
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

01. Always check water temperature by hand before entering shower or bath. e temperature may
have been changed. Do not touch the unit cover or the ue outlet while in use.
02. Do not insert objects into the ue outlet. On colder days steam may discharge from the ue
  outlet.isconditionisnormalforhigheciencyappliances.
03. e vent/air intake should be positioned away from ammable materials such as trees, shrubs,
etc.
3.1 HOT WATER RISK
01. Hot water is dangerous, especially for the young and the elderly or the inrm. e EZ Tankless
water heater allows you to precisely control the temperature of your hot water, ensuring safe water
temperature. Water temperature over 125°f can cause severe burns instantly or death from
scalding.
02. Hot water can cause rst degree burns with exposure for as little as:
3 Seconds at 140°f
20 Seconds at 130°f
8 Minutes at 120°f
03. Test the temperature of the water with your elbow to ensure adequate temperature before placing
a child in the bath or shower.
04. Do not leave children or an inrm person in the bath unsupervised.
3.2 SCALDS-FIRST AID GUIDANCE
 01. Removeclothing-removeallwetclothing,quickly,aswetclothingretainstheheat.
02. Applycoldwaterfor30minutes-immediatelysubmergetheburntareaincoldwaterfor30
minutes to reduce the heat in the skin, preventing deeper burning. Never use butter, oils, or
ointment to cover the burn, as they may retain the heat.
03. Keeptheindividualwarm-placeablanketaroundtheaectedindivdual.
 04. Seekmedicaladvice-callyourmedicaladvicehotlineanddescribethescaldingproperties,
follow their directions to provide further treatment if necessary.
3.0 SAFETY PRECAUTIONS
PAGE 06.
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

1. ON/OFF SWITCH
Turn the systems power on. Display will light up with temp.
2. INITIAL TEMPERATUE SETTING: BETWEEN 40-50C
3. WATER SOURCE
Inlet water source should be at least 1 GPM ltered water at a minimum of 8PSI. Lower water ow or a lower
water pressure may result in unit failing to ignite.
4. AFTER FIRST IGNITION ADJUSTMENTS
If you use mixing valves anywhere in the home we do recommend setting the heater with a lower water temp
setting in combination with using more hot water in the mixture. is will guarantee that there is at least 1GPM
running through the heater.
4.0 INITIAL SETUP AND OPERATION
PAGE 07..
Note: ese steps should be followed for every
new location or water source
CELSIUS
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
FAHRENHEIT
95
97
99
100
102
104
106
108
109
111
113
115
117
118
120
122
124
126
127
129
131
133
135
136
138
140
142
144
145
147
149
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

1. WELL WATER INSTALLATIONS
Due to the uctuation in water pressure when using on a well water system, users may experience uctuations in
water temperature. Fluctuations can be rectied with use of a water pressure regulator. When using a well system
withapumpswitchsetto40-60PSI,itisbesttosetyourwaterpressureregulatorat45PSI.Alternatively,ifusing
apumpswitchsetto30-50PSI,itisrecommendedtosetyourwaterpressureregulatorat35PSI.
2. BASEMENT INSTALLATIONS IN COLD WEATHER CLIMATES
e EZ Deluxe does not come provided with freeze protection. If exposed to freezing temperatures, the water
in the heat exchanger can freeze and can damage the pipework within the heat exchanger. When performing a
basementwallinstallation,itisrecommendedtoinstallonasub-frame(e.g2x4)tocreateaairbuerbetween
the wall and the back of the unit. is is to reduce risk of freezing through direct contact with basement walls.
Typically basement walls are poorly insulated & thus surface temperatures can be much colder than the ambient
room air.
3. MIXING VALVES
Modern mixing valves use a thermostatic temperature valve to control hot and cold water to faucets,
showerheads, and tub xtures. ese devices can oen cause an issue when used in conjunction with a tankless
waterheatersetatahightemperature.Whenwatertempissetabove110-120F,thesevalveswilladdcoldwater
to adjust the temperature to keep from scalding. An unwanted eect of this is that the hot water ow may drop
below required levels to keep the heater running. ere are a number of recommendations to reduce the risk:
a. Lower the water temperature setting on the water heater. Suggested settings of approx. 42C are ideal in
many scenarios.
b. Adjust the temperature setting on the mixing valve. (See manual for each individual xture.)
c. Replace showerhead with a high ow rate showerhead. It is common for a mixing valve xture used in
conjunction with a water saving showerhead to cause ignition issues with most tankless water heaters.
Be sure to use a showerhead with at least a 2GPM ow rate in conjunction with a mixing valve xture
to limit issues.
4. USE A SURGE PROTECTOR
e EZ Deluxe uses many sensors that are based on resistors. It is important to protect the electronics of the EZ
Deluxe system by plugging the units power cord into a surge protector.
4.1 SPECIAL NOTES - INSTALLATIONS
PAGE 08..EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

EZ TANKLESS WATER HEATERS
EZ-Deluxe: Domestic Hot Water - Standard Installation Schematic
KEY
3/4" Ball Valve
3/4" Union
XXXXX
Pressure Relief Valve
Boiler Drain Valve
This drawing is not an engineered drawing. It is intended for use only as a guide
and does not act as replacement for professionally engineered installation
drawings. This drawing is not intended to portray a complete installation sysyem.
The project engineer and/or installation contractor should determine the
necessary components for configuration of the system being installed. This
drawing does not imply compliance with local building code requirements. It is the
responsibility of the project engineer and/or contractor to ensure that the
installation is fully in accordance with the applicable building code through the
authority having jurisdiction. Obtain approval with local building code officials prior
to installation.
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL PAGE 09..
3/4” or 1/2” COLD WATER SUPPLY LINE
Ball Valve
Union

1. CHECK THE GAS HOSE AND REGULATOR FOR ANY DEFECTS
Propane regulators, especially single stage regulators, defect at a high rate predominantly due to age. Most single
stage regulators will eventually allow a higher pressure than the required 11”WC by the EZ Deluxe. When this
happens the unit will not ignite. is is the most common fault that causes ingnition failure.
2. CHECK THE EXHAUST VENT FOR BLOCKAGE REGULARLY
Debris, animals, or insects may enter the exhaust vent at anytime. Be sure to regularly check the exhaust vent
for any blockage. A blockage of the exhaust vent will cause inconsistent water temperatures as well as potential
damage to internal components.
3. CLEAN INLET WATER FILTER SCREEN REGULARLY
Located just inside of the water inlet tting on the bottom of the EZ Deluxe is a lter screen. is screen is used
to keep sediment and small debris from entering the heat exchanger. Be sure to regularly check this screen for
any debris that it may have caught. Remove the screen from the inlet using a small pick or screwdriver, blow
away or rinse away any debris that may have accumulated and reinstall the lter screen into the water inlet before
next use.
4. FLUSH UNIT ONCE A YEAR
With the heating of water through a heat exchanger comes the build up of minerals over time throughout the
water heater parts and components. It is recommended to ush your tankless water heater with distilled white
vinegar at least once per year when used on a regular basis, to ensure continued use and to avoid parts damage.
5. ALWAYS KEEP COVER OF UNIT CLEAN
e cover of your water heater will become hot during use. It is not recommended to place any stickers, magnets,
or other decorative material on the cover of the EZ Deluxe. Be sure to wipe away any dirt or debris that may be
on the cover before each use.
5.0 RECOMMENDED EZ DELUXE MAINTENANCE
PAGE 10..EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

Q1. WHEN THE HOT WATER TAP IS OPENED, AND THE EZ DELUXE IS NOT RESPONDING.
A. If you are running water through the system, but do not see a showerhead image on the display, the heater is
failing to sense the water ow. is will require one of the following to resolve the issue:
1. Flush the unit. Flushing the unit with Distilled White Vinegar will help to clean the magnetic turbine
located inside of the ow sensor housing.
2. Disassemble and clean the ow sensor housing by hand. Please call our tech support department for
access to our tech support videos (Note: Tech support videos are intended for advanced technicians
only).
3. Replace the ow sensor housing. If aer cleaning the ow sensor housing by hand the system still fails
to sense water ow, the ow sensor housing may need to be replaced.
Q2. THE DISPLAY SHOWS AN ‘E0’ ERROR CODE WHEN TRYING TO IGNITE.
A. is is an error on the inlet water temperature probe. We recommend trying to clean it before replacing it.
It is located on the ow sensor housing located on the bottom right of the unit where the water rst enters. It
will have a set of two black wires coming o of it and held in by one or two screws. Turn the water o to the
unit then remove the two screws holding the temperature probe in place. Once removed, clean the probe with
white vinegar and reinstall it. If the unit continues to show an E0 aer cleaning the probe then it will need to be
replaced.
Q3. THE DISPLAY SHOWS AN ‘E1’ ERROR CODE WHEN TRYING TO IGNITE.
A. Does the unit show an ‘E1’ error code every time the unit tries to ignite or sporadically?
1. Should the unit be showing the ‘E1’ error code only occasionally, we recommend ushing the system
with distilled white vinegar.
2. Should the unit be showing ‘E1’ every single time it tries to re:
A. Check to make sure that only EZ Tankless vent is being used. Be sure that the vent is installed
in a horizontal manner, through an exterior wall and vented outdoors. Check that there is
nothing blocking the proper ow of air through the intake or exhaust.
B. Aer verifying proper ow of air through the vent system, remove the front cover of the unit
(Be careful as the display should remain attached for this test.) Once the front cover is
removed, while viewing into the combustion chamber windows, open a water source to allow
the heater to try to re. If the unit res on the right side of the burners, but only the right side
before going to the ‘E1’ error code, your unit will need a motherboard replacement.
3. If your unit is showing ‘E1’ error code and the above steps have been taken to address the issue without
resolution, please call EZ Tankless Tech Support for further assistance.
Q4. THE DISPLAY SHOWS AN ‘E2’ ERROR CODE WHEN TRYING TO IGNITE.
A. Please call EZ Tankless support for assistance.
6.0 TROUBLESHOOTING
PAGE 11.
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

Q5. THE DISPLAY SHOWS AN ‘E4’ ERROR CODE WHEN TRYING TO IGNITE.
A. is is an error in the fan sensor, fan motor, or motherboard. Remove the front cover of the EZ Deluxe, keep-
ing the display wires attached. Locate the fan in the bottom le corner of the unit. Run a hot water tap. Watch
the fan blades and observe how they are spinning. If the fan increases to high speed when the unit senses water
ow, but the unit shows an ‘E4’ error code, the fan sensor is faulty and requires replacement. If the fan spins very
slowly and the unit goes to E4, the motherboard needs replaced. If the fan does not spin at all, the fan motor is
faulty and requires replacement.
Q6. THE DISPLAY SHOWS AN ‘E5’ ERROR CODE WHEN TRYING TO IGNITE.
A. is is an error of the limit switch or limit switch wire. Remove the front cover of the EZ Deluxe, keeping the
display wires attached. Locate the limit switch in the top le corner. Remove the wires from the limit switch.
Complete the circuit between the two wires using a piece of wire, or by sliding the two tabs together (A video of
this test can be found on our web site). Run water through a hot water tap connected to your EZ Tankless Deluxe
unit kit. If the unit res and runs while the wires are “jumped”, a new limit switch is required. If, aer jumping
the limit switch wires, the unit still returns an ‘E5’ error code, the thermal fuse in the wire may have been blown.
1. To Diagnose: Follow the wire back to the motherboard. Remove the wire from the motherboard, and
using a athead screwdriver, complete the circuit between the two prongs inside of the socket from which the
limit switch wire had been removed. If the unit runs as it should, a new limit switch is required.
Q7. THE DISPLAY SHOWS AN ‘E6’ ERROR CODE WHEN TRYING TO IGNITE.
A.is is an error on the outlet water temperature probe. We recommend trying to clean it before replacing it. It
is located to the le of the fan on the outgoing water line. It will have a set of two white wires coming o of it and
held in by one bolt. Turn the water o to the unit then remove the bolt holding the temperature probe in place.
Once removed, clean the probe with white vinegar and reinstall it. If the unit continues to show an ‘E6’ aer
cleaning the probe then it will need to be replaced.
PAGE 12..EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

7.0 INFORMATIONAL
DRAWINGS
PAGE 13.
DESCRIPTION
A
B
C
D
E1
E2
E3
13-7/8”or351mm
Width
Depth
Height-Unit
Height-IncludingBrackets
Hot Water Outlet (from wall)
4-7/8”or125mm
22-7/8”or566mm
24-5/16”or618mm
3/4” of 20mm
1-3/4”or42mm
2-1/4”or52mm
DIM
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL

EZTANKLESS,INC.
120 N WASHINGTON AVE
FOWLER, IN 47942
SALES DEPARTMENT:
E.[e-mail]
P.219-369-4781
SUPPORT DEPARTMENT:
E.[e-mail]
P.765-885-5125
CONTACT US
PAGE 14.
EZ TANKLESS DELUXE OPERATION + INSTALLATION MANUAL