Lochinvar 2.5, 3.5 service manual Ratings, Crest Ahri Rating

Models: 3 2 3.5 2.5

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Installation & Operation Manual

Ratings

00

00

of

Crest

AHRI Rating

 

 

 

 

 

 

Net

Model Number

Input

 

 

Gross

AHRI

 

MBH

 

 

Output

Ratings

Note: Change “N” to

 

 

 

 

MBH

Water,

(Note 4)

 

 

 

MBH

“L” for L.P. gas models.

 

 

 

 

 

 

 

 

 

 

 

(Note 1)

(Note 2)

 

Min

 

Max

 

 

 

 

 

 

FB(N,L)1500

60

 

1500

1380

1200

 

 

 

 

 

 

 

FB(N,L)2000

80

 

2000

1840

1600

 

 

 

 

 

 

 

FB(N,L)2500

125

 

2500

2300

2000

 

 

 

 

 

 

 

FB(N,L)3000

150

 

3000

2760

2400

 

 

 

 

 

 

 

FB(N,L)3500

200*

 

3500

3220

2800

 

 

 

 

 

 

 

*For LP models the minimum input is 420 MBH.

 

Other Specifications

 

 

 

 

 

 

 

 

 

Appliance

 

 

 

 

Vent

Weight

Pipe

Pipe

 

Air

Size

w/Water

Water

Size

Size

Gas Inlet

Size

 

(lbs.)

Content

Outlet

Inlet

Size

 

 

 

Gallons

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Note 3)

 

 

 

 

 

 

 

 

96

4"

4"

1 1/2"

7"

7"

2500

 

 

 

 

 

 

 

132

4"

4"

1 1/2"

8"

8"

3055

 

 

 

 

 

 

 

161

4"

4"

2"

8"

9"

3650

 

 

 

 

 

 

 

181

4"

4"

2”

10"

10"

4125

 

 

 

 

 

 

 

215

4"

4"

2”

10"

10"

4750

 

 

 

 

 

 

 

NOTICE Maximum allowed working pressure is located on the rating plate.

Notes:

1.The ratings are based on standard test procedures prescribed by the United States Department of Energy.

2.Net AHRI ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need be added for normal piping and pickup. Ratings are based on a piping and pickup allowance of 1.15.

3.Crest boilers require special gas venting. Use only the vent materials and methods specified in the Crest Installation and Operation Manual.

4.Standard Crest boilers are equipped to operate from sea level to 4,500 feet only with no adjustments.

5.High altitude Crest boilers are equipped to operate from 3,000 to 12,000 feet. High altitude models are manufactured with different control parameters for high altitude operation, but the sequence of operation given in this manual remains the same as the standard boilers. A high altitude label (as shown in FIG A.) is also affixed to the unit.

6.Standard Crest boilers will de-rate by 2.2% for each 1,000 feet above sea level up to 4,500 feet when combustion

calibration is performed and CO2’s are adjusted to the recommended levels.

7.High altitude Crest boilers will de-rate by 1.4% for each 1,000 feet above sea level up to 5,500 feet and 1.8% for each 1,000 feet above 5,500 feet.

8.Ratings have been confirmed by the Hydronics Section of AHRI.

UNIT EQUIPPED FOR

HIGH ALTITUDE

3,000 FT. TO 12,000 FT.

Figure A High Altitude Label Location

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Lochinvar 2.5, 3.5 service manual Ratings, Crest Ahri Rating

3, 2, 3.5, 2.5 specifications

The Lochinvar 2, 3, 3.5, and 2.5 models are a standout lineup in the realm of commercial and residential water heating solutions. Known for their advanced technology and high efficiency, these units cater to a wide range of applications, ensuring optimal performance and reliability.

One of the key features of the Lochinvar models is their robust construction. Each unit is designed to withstand rigorous operational demands while providing excellent thermal efficiency. They are equipped with stainless steel heat exchangers, which offer superior resistance to corrosion and extend the lifespan of the equipment. This durability is essential for both commercial and residential settings where demand can vary significantly.

The Lochinvar 2, 3, 3.5, and 2.5 models utilize innovative control systems that enhance their operational efficiency and user convenience. The built-in Smart Control technology allows for easy monitoring and adjusting of system parameters, ensuring that users can maintain optimal performance with minimal effort. This feature is especially beneficial in commercial settings where large volumes of hot water are required, as it enables users to effectively manage their energy consumption.

Energy efficiency is another hallmark of the Lochinvar lineup. With high-efficiency ratings, these models help reduce energy costs significantly, making them an environmentally friendly option for heating water. The use of advanced combustion technology ensures that these units can deliver maximum heat output with minimal fuel consumption.

Additionally, the Lochinvar models are designed with safety and reliability in mind. They feature multiple safety controls and diagnostics that alert users to potential issues before they escalate, providing peace of mind. The integration of advanced venting options allows for flexible installation configurations, accommodating various building layouts and space requirements.

In summary, the Lochinvar 2, 3, 3.5, and 2.5 models define modern water heating technology with their combination of durability, efficiency, and advanced features. With their innovative design and user-friendly controls, they meet the demanding needs of both commercial and residential users, making them a top choice in the water heater market. Whether for new installations or replacements, these units deliver reliable performance and value.