Potable Water and Space Heating

CAUTION: When this heater is used for both potable water and space heating, observe the following to ensure proper operation.

1.All piping materials and components connected to the water heater for the space heating application shall be suitable for use with potable water.

2.Toxic chemicals, such as used for boiler treatment, shall not be introduced into the potable water used for space heating.

3.If the heater will be used to supply potable water, it shall not be connected to any heating system or components previously used with a non-potable water heating appliance.

4.When the system requires water for space heating at temperatures higher than 140°F, a means such as a mixing valve shall be installed to temper the water in order to reduce scald hazard potential.

Fig. 13: Single Domestic Hot Water Heater and Storage

Tank

Gas Supply

DANGER: Make sure the gas on which the heater will operate is the same type as specified on the heater’s rating plate.

Gas piping must have a sediment trap ahead of the heater gas controls, and a manual shut-off valve lo- cated outside the heater jacket. It is recommended that a union be installed in the gas supply piping adja- cent to the heater for servicing. A pounds-to-inches

Model

Soft (0–4 grains per gallon)

Medium (5–15 grains per gallon)

Hard* (16–25** grains per gallon)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ΔT

gpm

ΔP

MTS

SHL

ΔT

gpm

ΔP

MTS

SHL

ΔT

gpm

ΔP

MTS

SHL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

399B

17

40

2.0

2

4.4

13

52

3.4

2

7.2

8

90

10.0

2

20.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

499B

21

40

2.1

2

4.5

16

52

3.5

2

7.4

9

90

10.4

2

20.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

649B

28

40

2.2

2

4.6

20

55

4.1

2

8.4

12

90

10.8

2

21.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

749B

30

42

2.6

2

5.2

20

63

5.7

2

11.1

14

90

11.3

2

21.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

899B

30

51

3.9

2

7.6

20

76

8.4

2

16.1

17

90

11.7

2

22.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

989B

28

60

2.7

2 1/2

4.6

20

83

5.2

2 1/2

8.6

13

132

13.1

2 1/2

21.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1259B

30

72

4.4

2 1/2

7.0

20

106

9.6

2 1/2

14.8

16

132

14.8

2 1/2

22.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1529B

30

86

7.1

2 1/2

10.7

20

132

16.5

2 1/2

24.4

20

132

16.5

2 1/2

24.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1799B

30

101

10.7

2 1/2

15.5

23

132

18.3

2 1/2

26.1

23

132

18.3

2 1/2

26.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1999B

30

112

13.9

2 1/2

19.7

26

132

19.0

2 1/2

26.9

26

132

19.0

2 1/2

26.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2069B

30

116

14.8

2 1/2

21.0

27

132

19.0

2 1/2

26.9

27

132

19.0

2 1/2

26.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2339B

30

132

21.4

2 1/2

29.3

30

132

21.4

2 1/2

29.3

30

132

21.4

2 1/2

29.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ΔT = Temperature rise, °F.

ΔP = Pressure drop through heat exchanger, ft.

SHL = System head loss, ft. (System head loss based on heater and tank placed no more than 5 ft apart and equivalent length pipe/fittings as fol- lows: 2 in. tube = 25 ft; 2 1/2 in. tube = 80 ft.

gpm = Gallons per minute, flow rate.) MTS = Minimum tubing size.

*Must utilize optional cupro-nickel tubes.

**With Hard Water (16-25 grains per gallon), the operating control must be set no higher than 130F for scale free operation. For operating temper- atures above 130F, a water softener must be utilized.

Table H: Domestic Water Heater Flow Rate Requirements

18

Page 17 Page 19
Page 18
Image 18
Raypak 399B-2339B operating instructions Gas Supply, Potable Water and Space Heating
Page 17 Page 19

399B-2339B specifications

The Raypak 399B-2339B is a notable pool heater that stands out in the competitive market of heating solutions, particularly aimed at residential and commercial swimming pools and spas. Designed for efficiency and reliability, the Raypak 399B-2339B integrates advanced technology to deliver a comfortable swimming experience, safeguarding users against fluctuating outdoor temperatures.

One of the primary features of the Raypak 399B-2339B is its robust design, built to withstand the rigors of outdoor environments. With a durable cabinet made from corrosion-resistant materials, it ensures longevity and resistance to various weather conditions. This heater boasts a compact footprint, making it an ideal choice for properties with limited installation space.

A standout characteristic of this model is its energy efficiency. The Raypak 399B-2339B utilizes a high-efficiency gas burner, allowing it to heat water quickly while consuming less fuel. This efficiency not only reduces operational costs but also aligns with environmentally conscious practices, making it an appealing choice for eco-friendly users.

Equipped with innovative technologies, this heater offers both digital controls and diagnostic capabilities. The user-friendly digital display allows for precise temperature control and easy monitoring of the heater's performance. Additionally, the built-in diagnostics feature alerts users to any operational issues, ensuring timely maintenance and minimizing downtime.

The Raypak 399B-2339B is compatible with both natural gas and propane, providing versatility in energy sources. This adaptability can be particularly beneficial for those seeking to switch fuel types or utilize available resources. Moreover, its low NOx emissions make it compliant with stringent environmental regulations, contributing to cleaner air and a healthier ecosystem.

In terms of heating capacity, the Raypak 399B-2339B boasts a powerful output, efficiently heating large bodies of water. This performance makes it suitable for various applications, from residential pools to commercial aquatic centers, ensuring that swimming enjoyment is never compromised due to cold water.

The unit also features a built-in water hydraulics system that optimizes water circulation, preventing overheating and prolonging the lifespan of the heater. Furthermore, the Raypak engineering team has ensured that the installation process is straightforward, with clear guidelines and necessary plumbing fittings provided.

In summary, the Raypak 399B-2339B is a top-tier pool heater that offers durability, energy efficiency, advanced technology, and versatile fuel compatibility. Its high performance and user-friendly features make it a reliable investment for anyone looking to enhance their swimming experience.
Top Page Image Contents