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engineered
to be the
best
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ATTENTION TO E VERY DETAIL S ATISFIES EVERY NEED!
Adding a high-end pool or spa reflects a desire for the
good life. It’s an investment that enhances lifestyle –
an oasis of relaxation and recreation, accessible any
time, right outside the door.
Today, pool and spa builders must promise fast heat-up
and comfortable water temperature, available quickly
and efficiently. The master builder’s pool heater checklist
also includes…
– Superior quality for trouble-free perfor-
mance, backed by service-friendly design
– Attention to details for fast, easy installa-
tion to reduce labor and material costs
– Installation flexibility to work seamlessly
with the aesthetics of the new pool or spa
Is the most innovative manufacturer of
water heaters and heating boilers, serving the extraordinary
demands of commercial buildings throughout the world. Our
engineering excellence and commitment to understanding
®
customer needs has produced EnergyRite
, the industry’s most
advanced pool and spa heater, for homeowners who want the
best of everything.
HOT PERFORMANCE,
COOL FOR THE E NVIRONMENT!
EnergyRite heats up fast, saves money and helps conserve our
natural resources with Low-NOx emissions that meet or exceed
the most stringent “green” standards, anywhere in the country!
THE FORMULA FOR THE FASTEST
COMFORT HEAT-UP IS SIMPLE.
1. Provide enough heating power to raise
water temperature quickly, on demand.
2. Engineered for efficiency, driving maximum
heat into the water.
EASY VENTING FOR EVERY INSTALLATION:
Outdoor Venting –
Standard from factory.
NOTE: Factory vent kit
required for all indoor
installations.
Conventional Venting –
Draws air from inside
room, vents into
conventional vertical flue
or vent breaching using
Type B double-wall vent.
E-Rite Side Wall –
Draws in outdoor
air, vents up to 20
equivalent feet. Uses
Category IV vent.
®
Power DirectAire
Draws in outdoor
air, vents up to 75
equivalent feet using
powered vent cap
and Type B doublewall vent.
–
HEAT UP FASTER!
Five EnergyRite models offer power to guarantee speed-
heating for any size pool or spa...from 150,000 Btu/hr to an
industry-maximum 400,000 Btu/hr. And Lochinvar’s engi-
neering delivers the highest thermal efficiency in its class.
It’s a combination that provides the industry’s fastest heat-
up time, and uses less energy so homeowners save money
every time they heat their pool or spa!
®
Powered Side Wall –
Draws air from inside
room, vents horizontally
up to 75 equivalent feet
using powered vent cap
and Type B double-wall
vent.
DirectAire
w/ Side Wall Inlet –
Draws in outdoor air
horizontally through
outside wall, vents
through vertical flue
using Type B doublewall vent.
Vertical
DirectAire® Vertical
w/ Rooftop Inlet –
Draws in outdoor air
vertically through roof,
vents through vertical
flue using Type B
double-wall vent.
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DIVE INTO
b
.
s
iLie
ncyy
V
Ad
NERGYRITE QUALITY
E
Lochinvar’s time-proven commitment to advanced
water heating technology is reflected in every
detail and every component of EnergyRite. It’s
a standard no other pool and spa heater can
match, backed by a 3-year limited warranty on
COMMERCIAL-GRADE HEAT EXCHANGER
– Highly efficient copper-finned tube design, time-proven in
Lochinvar commercial water heaters and boilers.
Also available with Cupro-Nickel tubes.
– Advanced heat exchanger design with no
O-rings, virtually eliminates leaks and failures
– Polymer headers, ideal for pool and
spa heaters – ASME certified cast iron
headers optional with slip-fit or
threaded connections
, time-proven in
oilers
e
the heat exchanger and a 2-year limited warranty
on all parts!
ADVANCED COMBUSTION SYSTEM
– Direct-Spark ignition for superior reliability and efficiency
– High-efficiency stainless steel burners
BUILT-IN FLOOR SHIELD
– Install on combustible flooring,
no need to purchase a separate kit
INSTALLER-FRIENDLY
CPVC
– Adaptable for PVC pipe, using
threaded or slip-fit connections
CONNECTIONS
FULLY SEALED
COMBUSTION
– Windproof design for safe operation
– Keeps out wasps, spiders & pests
– Commercial-grade galvanized,
painted steel jacket
CHAMBER
SERVICE-FRIENDLY
C
ONTROL S YSTEM
– Fingertip setup, temperature
adjustment and troubleshooting
– Separate control capability for pool and spa
– 2-line, 16-character display in
words instead of confusing codes
– Equipped for third-party remote operation
CONVENIENT, FLEXIBLE
TERMINAL STRIP
– For easy wiring connections,
including third-party remotes
– 240V or 120V electrical service
E
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STANDARD F EATURES
- 2-Line, 16-Character Digital Display
- Pool & Spa Temperature Control
- Password Security
- CPVC or PVC Ready
- 3rd-Party Remote Compatible
- Sealed Combustion Chamber
- Fan-Assisted Combustion
- Built-in Combustible Floor Shield
- Direct-Spark Ignition
- Stainless Steel Burners
- Loch-Heat Ceramic Tile
- 24V Terminal Strip
- Dual Voltage - 240V or 120V/60HZ
- On/Off Switch
- Built-in Air & Water Pressure Switches
- Inlet & Outlet Temperature Sensors
- Automatic Reset High Limit Safety
- Polymer Header with Built-in Bypass
- Low-NOx Emissions Meet the Most
Stringent Standards
- Flame View Port
- Outdoor Venting
- 3-Year Limited Warranty on
Heat Exchanger
- 2-Year Limited Warranty on Parts
OPTIONAL E QUIPMENT
- ASME Construction
- ASME Pressure Relief Valve
- Cupro-Nickel Heat Exchanger
- Stack Frame
- Indoor Vent Kits
- Flow Switch
POOL S IZING G UIDE
- Determine your pool's
surface area in square feet.
- Determine the desired
temperature rise by
subtracting the average
air temperature from the
desired pool temperature.
- In the table below, locate
the surface area equal to or
just greater than your pool's
surface area at the desired
temperature rise.
- Read to the left for the
appropriate EnergyRite
model number.
10°F 15°F 20°F 25°F 30°F
Model pool surface area in sq. ft.
ERN152 1257 838 629 503 419
ERN202 1676 1117 838 670 559
ERN252 2095 1397 1048 838 698
ERN302 2514 1676 1257 1006 838
ERN402 3352 2235 1676 1341 1117
NOTE: Sizing is based on a 3-1/2 MPH average wind velocity for
elevations up to 2,000 feet above sea level. For each 1,000 feet above
2,000 feet elevation, add 4% to the surface area of the pool.
Desired Temperature Rise
SPA & HOT T UB S IZING G UIDE
- Determine your spa/hot tub's capacity in U.S. gallons by multiplying the surface area (in square feet) by
the average depth (in feet), then by a conversion factor of 7-1/2 (1 ft3 = 7-1/2 gallons).
- The table below lists the time required (in minutes) to raise the temperature of different size spa/hot tubs by 30°F.
- In the table below, locate the gallon capacity equal to or just greater than your spa/hot tub’s size in gallons.
- Select the desired heat-up time.
- Read to the left for the appropriate EnergyRite model number.
Gal. 200 300 400 500 600 700 800 900
Model Time (Minutes) required to raise temperature
ERN152 23 34 45 57 68 80 91 102 114
ERN202 17 26 34 43 51 60 68 77 85
ERN252 14 20 27 34 41 48 55 61 68
ERN302 11 17 23 28 34 40 45 51 57
ERN402 9 13 17 21 26 30 34 38 43
NOTE: Spa/Tub Size in U.S. Gallons. Sizing is based on a 30°F temperature rise.
To adjust for other temperature rises, divide the time listed in the table by the temperature ratio.
Example: for a 15°F temperature rise, divide by 2 (30/2=15).
1000
DIMENSIONS EASY O RDERING KEY
ELECTRICAL
OPTIONAL
17-3/4"
VENT ADAPTER
26-1/2"
11-3/4"
5-1/4"
OUTLET
INLET
G
6"
22
"
Model Btu/Hr Dimensions Air Vent E-Rite/Powered Shipping
Number Input B D E F G
E
OPTIONAL AIR
INLET ADAPTER
D
B
2-1/2"
OUTDOOR
VENT CAP
F
ERN152 150,000 23" 18" 10-1/4" 22" 5-1/2" 4" 5" 4" 183
ERN202 199,999 26-1/2" 20-3/4" 12" 22" 6" 4" 5" 4" 195
ERN252 250,000 30" 21-1/2" 13-3/4" 22" 6" 5" 6" 5" 217
ERN302 300,000 33-3/4" 25-3/4" 16-1/4" 21-1/2" 6-1/2" 5" 6" 5" 240
ERN402 399,999 41" 29-1/2" 20" 21-1/2" 6-1/2" 5" 6" 6" 269
Note: Change “N” to “L” for LP gas models. No deration for LP.
Water connections are 2" NPT on 4-1/2" centers. Gas connections are 3/4" NPT.
CONNNECTION
GAS
CONNNECTION
21"
E R N 302
EnergyRite
Series
Fuel Type
Input
This key shows the model number of
an EnergyRite Natural Gas Pool Heater
17-3/4"
with 300,000 Btu/hr input.
Intake Size Sidewall Vent Weight (lbs.)
Btu/hr
ERP-02 (revised ERP-01 9/12)
Lochinvar, LLC
300 Maddox Simpson Parkway
Lebanon, Tennessee 37090
P: 615.889.8900 / F: 615.547.1000
www.Lochinvar.com
HLW
Optional
PDP-5M-8/14-Printed in U.S.A.
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