EZ TANKLESS EZ 101 User manual

EZ 101
OPERATION
& INSTALLATION
MANUAL
EZ TANKLESS

EZ 101 TANKLESS WATER HEATER SPECIFICATIONS
Maximum Gas Consumption BTU/h
Hot Water Supply at 45f Temperature Rise
Gas Supply Pressure (LPG)
Ignition System
Electric Supply
Safety Devices
Suitable Inlet Water Pressure
Water Connection
Gas Connection
Exhaust System
42,500
1.6GPM
11” WC
Natural Dra / Flue
Water Controlled Electric Ignition
2 X “D” Cell Battery
Flame Out Over Temperature, 20 Minute Timer
8-100 PSI
1/2” NPT
1/2” NPT / 3/8” Flare w/ Included Fitting
EZ TANKLESS 101 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
4.1 Control Dial Information
5.0 Recommended Maintenance Procedures
6.0 Troubleshooting
7.0 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 101 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 101 OPERATION + INSTALLATION MANUAL
ITEM
Heat Exchanger
All other parts and components
Reasonable Labor
PERIOD OF COVERAGE
1 Year*
1 Year*
1 Year*†
PAGE 03..

2.0 WHAT’S INCLUDED?
1 x EZ Tankless Water Heater
1 x Showerhead
2 x 1/2” Bushings
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 04.

2.1 FEATURES AND BENEFITS
• 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.
 • Complimentaryshowerheadandhoseincludedwithunit.
 • Simpleandaestheticallypleasingdesignfeatures–theunobtrusiveunitdesigntsseamlessly
in a variety of locations.
 • Advancedelectroniccontrolsystemcontrolledbywaterowprovidesextremelyreliable
operation. (Ignition electrical source is supplied by 2 x “D” cell battery)
 • Integratedionamesensorcutsthegassupplyifthepilotameisunexpectedlyextinguished.
 • Insucientwaterpressureprotection.
 • 20-Minutesafetytimerreducestheriskofcarbon-monoxidepoisoningintheeventof
inadequate ventilation.
• Independentcontrolofwaterow,burners,andgasowallowformoreexiblerangeinwater
temperature.
 • Ifwatersupplyisinterrupted,thegasvalvewillautomaticallyturno.
 • Highthermaleciencyandsuperbcombustionperformance.
 • Lowwaterpressureignition.eheatercanfunctionataslowas8PSIwaterpressure,making
this unit suitable for use at high altitude or applications using well water with older or less
powerful pumping systems. For example; as tested in our USA laboratory, this unit has been
proven to easily operate via a garden hose inlet water supply.
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 05..
Water Temperature Dial Water Outlet
Seasonal Mode Dial Gas Inlet
Flame Control Dial Flue Outlet
Water Inlet
1
7
4
5
6
3
2
15
26
37
4

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
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 06.

1. DIAL POSITIONING (PRE-FIRST IGNITION)
 a. WaterTemperatureDial-ewatertemperaturedialshouldberstsettothe“high”setting.
(Furthest clockwise setting)
 b. Winter/SummerDial-ewinter/summerknobshouldberstsettothe“summer”setting.
(Furthest clockwise setting)
 c. FlameDial-eamedialshouldberstsettothe“low”setting.(Furthestcounterclockwise
setting)
2. GAS SUPPLY
Gas supply to the EZ 101 unit should only be propane (lpg) regulated to a pressure setting of 11”WC. Lower or
higher pressures beyond this value will deliver inconsistent ignition and operation and are not recommended.
3. WATER SOURCE
Inletwatersourceshouldbeatleast1gpmlteredwaterataminimumpressureof8PSI.Wateroworwater
pressure values less than these recommended may result in unit failing to ignite.
4. ADJUSTMENTS FOLLOWING FIRST IGNITION
Note: ese adjustments should be made with the unit running and heating water.
 a. Toincreasewaterow,slowlyturnwatertemperaturedialcounterclockwise.If,whileincreasing 
  waterow,theEZ101amesout,slowlyreturndialclockwiseuntilunitreignites.
Stop! At point of reignition you have reached the maximum ow rate as provided by your
chosen water inlet source.
b. Toincreasewatertemperature,slowlyturnthe“ame”dialclockwise.Ifyoureachthemaximum
  amelevelandthewaterisstillnotwarmenough,returnthe“ame”dialtothelowsettingand 
attempt “step c”. When desired water temperature is set, do not reset the dials until a new water
source is provided.
c. Turn the winter/summer dial counter clockwise to the next setting. e dial will lock into place
when turned to each setting. With the dial at the new setting return to step “b” and continue to
nd desired temperature setting.
4.0 INITIAL SETUP AND OPERATION
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 07..
Note: ese steps should be followed for every new location or water source

4.1 CONTROL DIALS INFORMATION
1. WATER TEMPERATURE DIAL
e water temperature dial provides the greatest level of control over ignition level. is dial controls water
owthroughthesystem.eEZ101usesawaterpressureactivatedvalvetocontroltheelectronicignitionand
gasowthroughtotheburners.Iftheusersetsthewatertemperaturedialatthe“low”setting(highestamount
ofwaterow)buthasawatersourcewithlessthan2gpm,therewillnotbealargeenoughbuildofpressurein
the water/gas diaphragm to engage the pressure valve. is is why it is always recommended to set the water
temperature dial to “high” during initial setup/rst ignition.
2. SEASONAL MODE DIAL
eseasonalmodedialwillprovidethelargestucuationindeliveredwatertemperature.isdialregulatesthe
internal burners within the system. Selecting between 1, 2, or 3 burners, the available options include summer,
spring/autumn, and winter respectively, ranging from lowest to highest delivered temperature.
3. FLAME DIAL
eamedialwillprovidethegreatestlevelofcontrolinwatertemperature.Whenadjustingwatertemperature
tothatdesired,theamedialshouldbeusedbetweeneachburnerselectiontoreachthedesiredtemperature
setting.
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 08.
1
3
2

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 101. When this hap-
pens 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 101 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 101. Be sure to wipe away any dirt or debris that may be on
the cover before each use.
5.0 RECOMMENDED EZ101 MAINTENANCE
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 09..

1. WATER HEATER FAILS TO IGNITE/HEAT WATER
Q. DOES THE IGNITER SPARK?
A. NO:
1. Check that the batteries are installed correctly and hold a positive charge.
2. Detach your gas supply (turning o gas supply will not release built up pressure so you must detach
gas supply to perform troubleshooting.)
3. Attempt running water through the unit with the gas supply detached. If your unit sparks the igniter
without the gas supply attached you may have a gas regulator with an outlet pressure too high.
Recommended outlet pressure is 11”WC.
4. If the unit fails to spark the igniter with the gas supply detached, there may be an issue with the
microswitch used to control the electronics.
5. Remove the dials from the front of the unit
 6.Removethecoverfromtheunit-screwsarelocatedatbottomrearcorners
7. With cover removed, locate red and blue wires running from computer board (bottom le corner) to
the micro switch (front and center). e wires are connected with using white connectors.
8. Detach the white connectors from each other, thus separating the computer board and micro switch.
 9.Usinga“at-blade”screwdriver,completethecircuitbetweenthetwoprongslocatedinsidethewhite
connector on the computer board side of the red and blue wires.
10. If a spark is produced when doing so, the unit micro switch has failed. If no spark is produced,
the unit computer board or battery compartment is faulty.
To test for a faulty battery compartment –
With unit cover removed, remove the red and black wires from the top of the battery compartment. Tape
 two“D”cellbatteriesinaseries(congurationasfollows:+[battery#1]-+[battery#2]-).Withthe
batteries taped together securely, hold the red wire to the positive side of the batteries and the black wire
 tothenegativesideofthebatteries.Againtouchthe“at-blade”screwdrivertothetwopronglocated
inside the white connector on the computer board side of the red and blue wires. If a spark is produced, a
new battery compartment is required. If no spark is produced a new computer board is required.
6.0 TROUBLESHOOTING
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 10.

Q. DOES THE IGNITER SPARK?
B. YES:
1.Iftheignitersparksbuttheunitfailstoameup,rstcheckthatyouareusingalkalinebatteries.If
 thebatteriesareweaktheywillnotopen/holdopenthegassolenoid–thisresultsingasbeing
restricted from entering the burners.
2. If the heater contains brand new alkaline batteries and sparks, yet does not ignite, a faulty gas solenoid
valve may be present.
To test the gas solenoid:
Shut o unit and remove all gas supplies from the water heater. Remove the gas solenoid by removing
the 2x philips screws holding it in place on the gas assembly. With the gas solenoid removed, apply a
small amount of pressure on the valve (push the valve about 1/4 of the depth and it will drop into the
solenoid). Trip the igniter by running water through the system, or li the pressure plate o of the
 microswitch.Withyoungerrestingonthesolenoidandtheigniterengaged,electricityshouldow
through the solenoid and pull the valve into the solenoid. If this does not happen, a new gas solenoidis
required.
 3.Iftheignitersparks,theunitamesupbutextinguishesitselfin5-10seconds,afaultylimitswitch
may be present. In order to resolve, bypass the limit switch by completing the circuit between its two
wire connections. With that circuit completed before again attempting to run the water heater.
4. If the unit res and remains lit with the limit switch bypassed, order a new limit switch from our parts
page on our website: [http://www.eztankless.com]
For complete and up to date troubleshooting and self help videos please visit:
http://www.eztankless.com/support/ez-101-troubleshooting/
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 11..

EZ TANKLESS, INC.
PO BOX 111
4474 W 500 N
EARL PARK, IN 47942
SALES DEPARTMENT:
E. [e-mail]
P.219-369-4781
SUPPORT DEPARTMENT:
E. [e-mail]
P.219-474-6658
CONTACT US
EZ TANKLESS 101 OPERATION + INSTALLATION MANUAL PAGE 12.