Installation & Operation Manual

6 Hydronic piping (continued)

Figure 6-3Pressure Drop vs. Flow

Pressure Drop vs. Flow (Includes Secondary Piping)

Head)

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Feet

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drop

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressure

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

 

81

106

151

211

286

Flow Rate (GPM)

Table 6A Circulator Recommendations for Temperature Rise Applications_20°, 25°, and 35°

20°F Temperature Rise Applications

Model

GPM

FT/HD

Minimum Pipe

 

Pump

 

 

Size

Grundfos

TACO

B & G

Armstrong

 

 

 

81

7.5

24

1"

UPS26-99F

0011

NRF-36

E7

106

9.8

27

1"

UPS26-99F*

0013

NRF-36

E11

151

14.0

20

1"

UPS26-99F

0011

NRF-36

E7

211

19.6

29

1"

UPS32-160

1400-50

PL-55

E9*

286

26.5

15

1-1/4"

UPS32-80

1400-20

PL-36

E11

*NOTICE

These pumps are only slightly above 20° rise flows, but are the closest available. To reach a 20° rise or less, an upsized pump will be required.

 

 

 

25°F Temperature Rise Applications

 

 

Model

GPM

FT/HD

 

Minimum Pipe

 

Pump

 

 

 

Size

Grundfos

TACO

B & G

Armstrong

 

 

 

 

81

5.9

15.0

 

1"

UPS15-58FC

0014

NRF-36

E7

106

7.7

17.5

 

1"

UPS26-99F

0014

NRF-36

E7

151

11.0

12.8

 

1"

UPS26-99F

0014

NRF-36

E7

211

15.5

19.0

 

1"

UPS26-99F

0013

NRF-36

E7

286

21.0

11.5

 

1-1/4"

UPS26-99F

0011

NRF-36

E7

 

 

 

 

 

35°F Temperature Rise Applications

 

 

 

 

 

Model

 

GPM

FT/HD

 

Minimum Pipe

 

Pump

 

 

 

 

 

 

 

Size

Grundfos

TACO

B & G

Armstrong

 

 

 

 

 

 

81

 

4.2

7.3

 

1"

UPS15-58FC

007

NRF-22

 

Astro-30

106

 

5.5

9.3

 

1"

UPS15-58FC

007

NRF-22

 

Astro-30

151

 

7.9

9.5

 

1"

UPS15-58FC

008/0010

NRF-36

 

Astro-30

211

 

11.0

9.1

 

1"

UPS15-58FC

0010

NRF-36

 

Astro-50

286

 

15.0

7.3

 

1-1/4"

UP26-64F

008/0010

NRF-36

 

 

E7

 

 

 

Pumps listed in bold type are provided by the factory as the boiler circulation pump on standard altitude

NOTICE

 

 

models.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pumps listed in italicized type are provided by the factory as the boiler circulation pump on high altitude

NOTICE

 

 

models.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The temperature rise provided by a pump/model combination will decrease by 3% per 1000 feet of elevation.

NOTICE

 

 

 

 

 

 

 

 

 

 

 

 

 

37

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 37
Image 37
Lochinvar 81 - 286 operation manual Feet, Pressure, Model, Minimum Pipe Pump Size Grundfos, Armstrong

81 - 286 specifications

Lochinvar 81 - 286 is a state-of-the-art boiler recognized for its efficiency and reliability in both residential and commercial applications. This high-performance heating solution is designed to meet the diverse needs of users while adhering to modern environmental standards.

One of the standout features of the Lochinvar 81 - 286 is its advanced condensing technology. This allows the unit to harness more heat from the combustion gases, significantly boosting its thermal efficiency. With an impressive efficiency rating of over 95%, users can expect lower energy bills and reduced carbon emissions, making this boiler an environmentally friendly choice.

The Lochinvar 81 - 286 incorporates a robust stainless steel heat exchanger that guarantees durability and longevity. This corrosion-resistant material not only prolongs the unit's life but also ensures consistent performance over time. Additionally, the heat exchanger’s design facilitates optimal heat transfer, further enhancing the boiler's efficiency.

In terms of control, the Lochinvar 81 - 286 features a user-friendly control interface that simplifies operation. The boiler is equipped with advanced modulation capabilities, allowing it to adjust its output based on real-time heating demands. This responsiveness reduces energy waste and optimizes comfort levels within the space it serves.

The boiler also supports a variety of installation configurations, providing flexibility for different building layouts. Its compact design allows for easy installation in restricted spaces, while versatile venting options facilitate integration into various systems.

Safety is a paramount consideration in the design of the Lochinvar 81 - 286. The unit comes with integrated safety features such as a built-in diagnostic system that alerts users to any potential issues before they escalate. This proactive technology helps in maintaining seamless operation and reducing downtime.

Finally, the Lochinvar 81 - 286 is compliant with the latest regulations and industry standards, ensuring that it meets the expectations of both consumers and environmental agencies. With its impressive combination of efficiency, durability, and advanced technology, the Lochinvar 81 - 286 stands out as a top choice for anyone seeking a high-performance heating solution. This boiler not only addresses the immediate needs of heating but also supports long-term sustainability initiatives, proving to be a wise investment for the future.