Omega OME 514-PV User manual

OME 514-PV Instantaneous Water Heater
Installation Manual and Owner’s Guide
FOR YOUR SAFETY
This product must be installed by a licensed
professional technician or gas fitter
qualified in water heater installation to
comply with the laws of the Commonwealth
of Massachusetts and/or any State.
Check your local codes and regulation.
This manual is correct as of the date of
publication, but regulations are in continual
change or update. Only your professional
installer will be updated in regard to all
local Codes pertaining to the installation of
this water heater.
Warning
If the information and instructions in this
manual is not followed exactly, a fire or
explosion is possible, causin
g
property
damage, personal injury or death.
Warning
Any Gas appliance creates flue gasses,
carbon monoxide gas, which can cause
serious injury or death. Improper
installation, and/or operation, or installation
by unqualified person, will void warranty.
Installation and service must be performed
by a qualified installer, service agency or
your gas supplier.
Suitable for
potable water heating
or space heating
Features
* Energy conservation,
* Endless hot water on demand,
* Compact, wall mount, space
saving,
* Computer controls for safety and
reliability,
* Electronic ignition, no pilot light,
* The only Tank to Tankless
replacement kit available in the
market witch do not require
plumbing modification

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Table of Contents
Specification………….Page 2
Package inventory…..Page 3
Safety talk ……..……..Page 3
Operation……………...Page 4
Safety Systems……….Page 5
Installation…………... Page 5
Operation………………Page 7
Recommendations for..Page 8
New installation
Temperature increase
Diagram ……………… Page 9
Specification
Natural Gas Input Minimum 28,000 Btu
Maximum112.000Btu
LPG Input Minimum 27.000 Btu
Maximum112.000 Btu
Gas Connection ½” NPT
Water Connection 3/4 NPT
Water pipes location On the top of the
unit.
Water Pressure Min 19 psi
Max 150 psi
Recommended 45 psi
Natural Gas Pressure
Inlet Min 0.33 psi
Max 0.43 psi
LP Gas Pressure Inlet Min 0.43 psi
Max 0.47 psi
Weight 37 lbs
Dimensions 32.5" X 15.5" X 9.5"
Electrical power used 115 V /60Hz
Power usage 60W
Ignition Electronic ignition
Safeties: Ion flame detector
Max temp sensors
Water leak sensor
Flame inspection
window
Anti freezing device
Pressure sensor/device

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Congratulations on your purchase of
an
OMEGA OME 514-PV Gas Tankless
Water Heater.
You’re about to discover that not all water
heaters are created equal. The Omega
Comfort has made possible the design and
production of this efficient and incredibly
affordable Tankless water heater that will
provide you with many years of
uninterrupted service. It is the mission
and goal of the Omega Comfort to
continue to combine innovation, quality,
affordability and reliability in all of its
Tankless water heaters.
Once again, thank you and
congratulations.
Before going any further, check and make
sure that the following items accompany
your water heater. There are two
compartments in the Styrofoam packaging
that contain necessary hardware.
Before we go any further let’s make a
inventory:
The first pouch will hold the letter from
the CEO, this instruction manual and the
Consumer Energy Guide and bolts for
mounting the brackets
.
The second will hold the direct vent
hardware: They are to be used ONLY when
vented direct thru the wall.
-They are also 2 mounting brackets taped
on the back of the unit.
Safety Talk
1. Always follow all local codes, or in
absence of local codes, follow the actual
edition of National Fuel Gas Code, ANSI
Z223.1/NFPA 54 in USA or Installation
Codes for Gas Burning Appliances in
Canada, the CGA standard, CAN/CGA
B149.1 or CAN/CGA B 149.2
2. Check the rating plate for the correct gas
type, gas pressure, water pressure, and
electrical rating. DO NOT INSTALL the
unit if any of those characteristics can’t
be met.
3. If during unpacking, you observe any
damages on the cabinet, flue parts or
electrical cables of the water heater,
STOP UNPACKING!
DO NOT INSTALL until you notified the
factory and the unit is properly inspected.
Always follow the factory technician
suggestions.
4. Properly ground the unit in accordance
with local codes and in absence of those
with the National Electrical Codes,
ANSI/ NFPA 70 in the USA or Canada
Electrical Code Part 1 in Canada.
5. If any problem arrives turn of the gas first
from the valve and then the cold water
supply. Call a trained technician, the Gas
Company or our telephone hotline at
[phone] for instructions.
6. Use caution in planning you installation. For
maximum efficiency it should be installed at
equal distance from all consumers, easy to
access, shortest distance from the venting
exit. For best safety, always install gas
appliances out of the reach of the children’s.
7WARNING: Do not use this unit if
ANY part was under water. Immediately
call a certified or trained technician to

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inspect and service the unit as
necessary.
8Do not open the unit if gas, water
and electrical is not disconnected.
Severe burns, scalding or even death
can occur if the unit is not cold to
touch before opening.
9If any repairs where attempted by an
untrained personal, the warranty is
void.
10 Do not reverse gas with water pipes.
Severe damages to the unit, other
appliances on the house and your Gas
line system will occur.
11 Do not reverse cold and hot water
pipes. Severe damages to the unit will
occur and warranty will be void
12 Follow the diagrams bellow when
you install your OME 514-PV water
heater.
Operation
OME 514-PV is a instantaneous, tankless
water heater designed to efficiently supply
domestic hot water.
We combine the principle, which is been
around from the beginning of the 1900’ with
today technical know how, and we ad every
safety we could think about to give you the
ultimate in domestic water heating.
When you open the hot water faucet, the
computer sensors detect the depressurization
of the line and command the gas valve and
the ignition relay control the commencing of
the burning cycle.
A minimum of 0.5 Gallons per minute is
required to ignite, but only 0.4 gallons per
minute to maintain the burners on.
During the operation, the computer monitors
and adjusts the temperature and flow of the
water and gas, to insure the total burning of
your fuel.
As long as your gas, water and unit is on, just
by opening of your faucet you will have an
endless supply of hot water.
-To turn your water heater on, just open
your faucet.
-To turn your water heater off, just close
your faucet. Temperature
The output temperature of the OME 514-PV
is been preset by the factory
NOT TO EXCEED 120 F
This is controlled by the computer and
Temperature limiters sensors and can not be
adjusted higher by any technician.
WARNING
Temperature over 120 F (50 C) can cause
severe burns or even death. The Disabled,
elderly and children’s are at a high risk of
being injured by high temperature of water.

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Always feel the temperature of the water
before you enter in to the shower.
Do not leave disabled, elderly and children’s
unsupervised.
SAFETY SYSTEMS
OME 514-PV is equipped with the following
safety systems:
- Electronic Ignition- Your unit will
never have a pilot light burning gas day and
night and wasting your gas and presenting
a fire danger
- ION technologies – This system read
the flame 20 times a minute, and detects
temperature of the flame. If the
temperature does not denote a fire, the unit
will attempt reigniting the flames. After the
second unsuccessfully attempt the system
will shut down your gas flow, therefore
eliminating discharging of unburned gas and
the danger of explosion.
-Pre-evacuation of existing gases
The unit will first start the interior air pump
and after the existing gases in the unit are
evacuated the unit will attempt ignition.
This process eliminates detonations in case
of any small leaks which can accumulate in
time.
The interior air pump will stringently
measure permanently the amount of air
necessary to burn the gas released on the
burning chamber, therefore the burning is
complete and efficient.
-This unit passes the most stringent
emission tests in the industry.
After you close your hot water faucet the air
pump will continue to work for up to 30
seconds to cool down the unit to eliminate
any possibility of overheating or heat
dissipation on the surrounding of the unit
therefore eliminating one more fire danger.
-Space age insulation:
-The entire unit is “Cold to touch” The
radiant temperature on any place on the
unit is under 100 F so the possibility of “Fire
by contact” is eliminated.
- Freeze Prevention- We see no reason to
install your water heater outside. OME 514-PV
is been design for inside installation so
therefore you do not need expensive and
energy consuming heat resistors to keep the
unit from freezing.
- Over pressure valve- to eliminate any
possibility of water overpressure due to a
malfunction.
- Alloy coating
Heater Exchanger is not exposed cooper like on
most of the units on the market, but is coated
with a special alloy which is able to sustain, with
out damage, temperatures in excess of 1500 F.
ALL of those safeties are incorporated in the
unit with only one reason in mind:
You, the customer!
INSTALLATION
Location
This instantaneous water heater is a complete,
perfect replacement kit system to replace your
old tank unit with out any plumbing
modification.
The recommended distances from immediate
walls or other object is as follow:
-4 inch from the sides,
-8 inches from the top, (ceiling or roof)
-3 inches from the front, (if enclosed in any
cabinet or wooden enclosure)
-24 inches from the floor, minimum, is required
by the fire codes but we recommend to have it
installed eyed site level for easy control,
supervision or maintenance.
- Use the 2 brackets provide for installation.
Find the studs and connect the 2 closest studs
together with the bracket. The water heater
does not need to be in the center of the
bracket. Hang the water heater as needed on
any treaded hole in the bracket with the bolts
provided, one bolt on the top and 2 on the
bottom.
Water connections
-Use the same flex pipes you had on your old
tank water heater or replace them with new
ones if the old ones are rusted or damaged.

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NOTE: Pressure / Temperature relief valve
is not necessary or required because the
unit has a integrated, redundant over
temperature protection system.
Gas Installation
The gas line is from the bottom of the unit:
Connect the gas unit thru hard line or a
approved flex hose not less then ½ “diameter.
You can use your old flex hose if is sufficient
long and at of list ½” diameter.
Warning:
Your line has to have a minimum
pressure of 0.33 PSI and the capacity to
move a sufficient quantity of gas to
produce 112,000 Btu.
Lengthy gas pipe with out step-downs
will not be able to supply the necessary
gas volume for the unit.
Warning: The unit will not work if
not pluged on a electrical receptacle
with a working ground connection.
The freezing device is not adjustable, do not
turn or disassemble. Only a authorized
technician can perform maintenance on the
anti-freezing device
Maintenance
The unit is virtual maintenance free with the
exception of the de-scaling every 1 to 3 years
based of the PH of the local water supply. The
harder is the water, more often the de-scaling
has to be done. Ask a local professional for
advice in regard to the composition of the
water. Your local Water Company or your local
Gas Company can help you with the necessary
data.
De-scaling involve harsh chemicals and
specialized tools and can only be done by a
professional.
Warning!
-Do not attempt to do it yourself.
-Severe burns can occur if no
specialize equipment are used
-Improper chemicals can harm the
water heater and/or the plastic and
rubber parts rendering the warranty
void.
Operation
-Plug the electrical cord on the electrical
receptacle.
-Open the water valve
-Check for leaks
-Open the gas valve
-Check for leaks
Warning:
Do not check for gas leaks with an open
flame. Severe burns and/or fire can be
produced in case of gas leaks.
- Adjust the gas knob to maximum
-Adjust the water knob to maximum volume of
water
- Open a water faucet as close as possible to
the unit.

7
If the unit do not light up then shut up and
start again
Warning:
In order to evacuate the air from the gas
line it may be necessary to repeat the
operation 3 to 5 times based on the
length of the gas line.
- As soon as you see the unit light up leave it
to run for at list 5 minute.
-With the hot water on, go to the unit and see
the temperature of the water on the electronic
display.
- If the water is too cold (below 110F) your
water volume is too big. Need to reduce the
overall water flow thru the unit to 14 liters per
minute or until the temperature of the
resulting water reach 110F .
- If the water is too hot (over 120F), reduce
the gas flow from the Gas Knob
-Repeat the procedure with at list 30 second
to a minute time in between to leave time for
the “new” water to reach the sensors
Warning:
-Use only small increments by dividing
the scale on at list 6 segments. Small
increments make big differences.
Once you achieve the desired temperature
you do not need to thatch again the dials.
The fine tune adjustments are made by
mixing your hot water with cold water at the
faucet
Warning:
If after 5-10 minutes the unit suddenly shuts-
up a overheating problem exist:
If the unit go over 140F and the unit shuts off,
The unit will not start before you close
the faucet and reopen again.
Fix: Dial back the gas knob to reduce the
temperature, 1/6 of the dial.
It can also be problem of interaction between
the instantaneous water heaters and “water
savers”
Water savers are small devices inserted on the
back of the shower heads or faucets
The problem is even more frequent on faucets
with only one handle and anti- scalding devices.
If your problem persisted, contact the installer
or the technical support line for up to date and
details instructions of how to proceed to
eliminate the problem..
The toll free number is located on the back of
this manual or the retail box of the unit.
For new installations
-It is not recommended hot water lines longer
then 20 feet’s. When you locate the unit, find a
central location, with the shorter possible
distance to all the consumers.
Keep in mind that you need between 5 to 7
times the water existing in the pipes ONLY TO
BRING THE PIPES TO THE TEMPERATUR
OF THE WATER.
-Exterior walls are recommended for installation
but NOT absolute necessary for installation.
This unit can share any existing chimney or
exhaust vent.
Exhaust gases temperature do not exceed 200F
therefore it is not necessary to have special
insulation and any aluminum flex exhaust is ok
to use to connect to the exhaust stack.

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We recommend the elimination of the water savers on the back of the shower
heads if a repeat interruption of the hot water occurs.
Any problem of the installation and maintenances can be asked at:
888-866-2118
Monday to Friday 9.00 Am to 5.00 PM
Other factors to be taken in consideration
OME 514-PV Outlet Temperature Chart
Flow Rate
GPM 45 F Inlet Temp. 50 F Inlet Temp. 55 F Inlet Temp. 60 F Inlet Temp. 65 F Inlet Temp. 70 F
Inlet
Temp
2.75 130* 130* 130* 130* 130* 130*
3.00 124 129 130* 130* 130* 130*
3.25 116 121 126 130* 130* 130*
3.50 109 114 119 124 129 130*
3.75 104 109 114 119 124 130
4.00 101 104 109 114 119 125
4.25 95 101 105 110 115 120
4.50 92 97 102 107 112 117
4.75 89 94 99 104 109 114
5.00 86 91 96 101 106 111
5.25 84 89 94 99 104 109
* The result for Output temperature was reduced to 130 Degrees, by the temperature safety devices (anti-scalding
device) included in the design of the unit.
** The normal shower temperature
Warning :Exposure to water at 125*F can produce first degree burns in 15 seconds
Typical Flows and Temp for Household Fixtures
Fixture
Type
---->
Lavatory Shower
Low flow
Shower
High
flow Kitchen
Sink Bathtub Jacuzzi Dish Washer Washing Machine
Flow Rates 0.8 - 1.5 1.0 -1.7 1.7- 3.0*1.0 -1.5 2.0-4.0 1.0-1.5 1.5-2.0
Prevailing
Temp.
Use 80°
to
105°
100°
to
110°
105°
to
115°
90°
to
110°
105°
to
115°**
80°
to
95 °
Flow Rates in Gals/ Minute
Temperature in degrees °F
* Energy Department website defines a “Legal” shower as a shower which use no more then
1.76 gallons/minute.
** All 10 years old or newer Dishwashers have their own heater element so incoming water
temperature is somehow irrelevant.