Lochinvar EFFICIENCY, EBN 150 User Manual

Taking Comfort and Efficiency to the Next Level

An Investment You’ll Feel Right at Home with

Heating your home or business is one of the biggest investments you’ll
ever make…and you deserve a heating system that delivers unmatched
comfort, dependability and energy savings, year after year. That’s why
Efficiency+ from Lochinvar is the smart choice for heating.

Efficiency+, with inputs ranging from 150,000 to 300,000 Btu/hr, more
than lives up to its name, with an outstanding 84% AFUE. It has two­stage firing that saves fuel by closely matching heat output to system
demand, maximizing operating efficiency.

Two-Stage Firing

During the majority of the heating season less than full boiler input is
required to satisfy a heat load. For this reason Lochinvar has developed
a two-stage firing system. Two-stage firing — standard equipment on all
Efficiency+ boilers —provides dramatic fuel savings by reducing heat
output 50%. That means when outdoor temperatures become warmer,
the boiler will use less fuel to maintain comfortable indoor temperatures.

High Fire

With standard two-stage firing,
Efficiency+ reduces gas consumption.

Low Fire

On colder days the boiler fires
at full input.

In warmer conditions Efficiency+
reduces heat output to save energy

Stage 1

Stage 2

and reduce cycling.

Trouble-Free Operation

There’s nothing more irritating than a boiler that sputters out when you
need it most. That’s why Efficiency+ has an integrated boiler control
that ensures safe burner operation and prevents nuisance flame-failures.

Efficiency+ is also designed to operate on low gas pressure — a key
consideration in regions where natural gas supply pressure is in the
4 - 5 inch range.

Space-Saving Design

With Efficiency+, you get high efficiency heating in a surprisingly
compact unit. It fits easily where other boilers won’t.

The Efficiency+ is remarkably light
because of its copper tube heat exchanger
and other design breakthroughs. For
example, Efficiency+ uses Loch-Heat™
tile to reduce unit weight by 25% as
compared to conventional cast refractory
materials. Loch-Heat tile also increases efficiency by reflecting heat
back into the combustion chamber rather than absorbing it.

High Efficiency,
Gas Fired
Heating Boiler

Thermal Efficiency—Your Reliable Yardstick For Savings

Thermal Efficiency

Efficiency+ has an 84% thermal efficiency rating, which means 84 cents out of every fuel dollar are used to create heat.
Other efficiency ratings can be misleading and result in artificially high ratings.

Combustion Efficiency

Efficiency+

®

Boiler Dimensions & Specifications

Efficiency+ Boiler Dimensions & Spec i fi ca tions

Input Heating Net
Model Max AFUE Capacity I=B=R Gas Vent Shipping
Number MBH % MBH MBH B D E G Conn. Size Weight

EBN150 150 83.2 129 112 19-3/4” 16” 7-1/4” 11-3/4” 3/4” 5” 245
EBN200 200 83.1 170 148 23-3/4” 20” 9-1/4” 11-3/4” 3/4” 5” 265
EBN250 250 83.2 218 190 27-1/2” 23-3/4” 11” 11-3/4” 3/4” 6” 290
EBN300 300 84.0 252 219 31-1/4” 27-1/2” 13” 11-3/4” 3/4” 6” 310

Notes: Change ‘N’ to ‘L’ to denote L.P. gas models Electrical Requirements: 120 VAC / 2 AMP Water connections are 1-1/2” NPT
Net ratings based on piping and pick-up allowance of 1.15 Performance data based on manufacturer test results.

Standard Features

• 84% AFUE

• Two Stage Firing

• Sealed Combustion Chamber

• Stainless Steel Burners

• Low NOx Operation Exceeds the most

Stringent Air Quality Requirements

• ASME Copper Finned Tube Heat Exchanger

• 160 PSI Working Pressure

• Gasketless Heat Exchanger Design

• Automatic Reset High Limit

• Loch-Heat Ceramic Tile Combustion Chamber

• Hot Surface Ignition

• ASME Pressure Relief Valve

• 24 Volt Control System

• Pump Relay

Venting Options

Conventional
Vents into conventional flue or
vent breaching using Type B
double wall vent.

** Outdoor Vent Kit

Use when indoor space is a
problem or if outdoor location
gives better access.

• 10 Year Limited Warranty

on Heat Exchanger
(See warranty for details)

Optional Equipment

• Adjustable High Limit

w/ Manual Reset

• Alarm Bell

• Cupro-Nickel Heat Exchanger

• Flow Switch

• Indoor/Outdoor Reset

• Manual Reset Low Water Cut-Off

w/test

• MP2 Sequencer

• Stack Frame

• Pump Delay w/ Freeze Protection

** E+ DirectAire Vent with

Sidewall Inlet

Draws fresh combustion air from
an outside wall horizontally, and
vents combustion by-products
through a vertical flue.

Direct Vent Vertical
Draws fresh combustion
air from outside, and vents
combustion by-products
through a vertical flue.

Available Firing Systems

M9 Hot Surface Ignition with
Electronic Supervision
(Standard)
M7 California Code

For Ease In Ordering

By Model Number

E B N 150

natural gas Efficiency+ boiler.

Registered Under U.S. Patent #5,989,020

Boiler

Efficiency+

This is a 150,000 Btu/hr

** Direct Vent Horizontal

Draws fresh combustion air
from outside, then vents
by-products through a side wall.

** Requires factory supplied vent kit.

Natural Gas

Input

Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: [phone]

EBN-04 Revised EBN-04 9/08)

www.Lochinvar.com

FG-5M-3/10-Printed In U.S.A.