Lochinvar EFFICIENCY+ E B N 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 two-

stage 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.

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

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.

Thermal Efficiency Combustion Efficiency

Thermal Efficiency—Your Reliable Yardstick For Savings

Stage 1 Stage 2

Low Fire

High Fire With standard two-stage firing,

Efficiency+ reduces gas consumption.

On colder days the boiler fires

at full input.

In warmer conditions Efficiency+

reduces heat output to save energy

and reduce cycling.

Available Firing Systems

M9 Hot Surface Ignition with

Electronic Supervision

(Standard)

M7 California Code

Efficiency+®Boiler Dimensions & Specifications

Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000

www.Lochinvar.com

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

EBN-04 Revised EBN-04 9/08)

For Ease In Ordering

By Model Number

E B N 150

This is a 150,000 Btu/hr

natural gas Efficiency+boiler.

Efficiency+

Boiler

Natural Gas

Input

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

•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

•MP2Sequencer

•Stack Frame

•Pump Delay w/ Freeze Protection Registered Under U.S. Patent #5,989,020

Venting Options

Conventional

Vents into conventional flue or

vent breaching using Type B

double wall vent.

** 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.

** Direct Vent Horizontal

Draws fresh combustion air

from outside, then vents

by-products through a side wall.

** Outdoor Vent Kit

Use when indoor space is a

problem or if outdoor location

gives better access.

** Requires factory supplied vent kit.

Efficiency+ Boiler Dimensions & Specifications

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.

This manual suits for next models

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