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

Pool Heating

CAUTION: Power to the heater should be interlocked with the main system pump to make sure the heater does not fire without the main system pump in operation. Improper flow control can damage the heater. Uncontrolled flow (too high) or restricted flow (too low) can seriously damage the heater. Follow these instructions to make sure your heater is properly installed.

The Hi Delta pool heater is equipped with an external pump and bypass arrangement as standard equip- ment. This arrangement blends outlet water with the inlet water to increase the inlet water temperature, thereby reducing the likelihood of condensation form- ing on the heat exchanger. The pump also serves to

Model

Soft (0-4 grains per gallon)

Medium (5-15 grains per gallon)

Hard* (16-25 grains per gallon)

No.

T

gpm

P

MTS

SHL

T

gpm

P

MTS

SHL

T

gpm

P

MTS

SHL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

992B

28

60

2.7

2

4.6

20

83

5.2

2

8.6

13

132

13.1

2

21.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1262B

30

72

4.4

2

7.0

20

106

9.6

2

14.8

16

132

14.8

2

22.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1532B

30

86

7.1

2

10.7

20

132

16.5

2

24.4

20

132

16.5

2

24.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1802B

30

101

10.7

2

15.5

23

132

18.3

2

26.1

23

132

18.3

2

26.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2002B

30

112

13.9

2

19.7

26

132

19.0

2

26.9

26

132

19.0

2

26.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2072B

30

116

14.8

2

21.0

27

132

19.0

2

26.9

27

132

19.0

2

26.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2342B

30

132

21.4

2

29.3

30

132

21.4

2

29.3

30

132

21.4

2

29.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ΔT = Temperature rise, °F

ΔP = Pressure drop through heat exchanger, ft

SHL = System head loss, ft (based on heater and tank placed no more than 5 ft apart and equivalent length pipe/fittings of 2 1⁄2” tube = 25 ft)

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

*Must utilize optional cupro-nickel tubes. If over 25 grains per gallon, a water softener/treatment system must be utilized. Caution: For scale free operation with "Hard Water" (16-25 grains per gallon of total hardness), the operating control must NOT be set higher than 130 F. For higher than 130 F operation, a water softener/treatment system must be utilized.

Table H: Domestic Water Heater Flow Rate Requirements

18

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Raypak 992B manual Potable Water and Space Heating, Pool Heating
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992B specifications

The Raypak 992B is a highly regarded commercial boiler known for its efficiency and reliability in heating applications. Designed for a range of installations, it is particularly favored in schools, hotels, and various commercial settings where dependable heating is crucial. One of the standout features of the Raypak 992B is its impressive thermal efficiency rating, often exceeding 90%. This efficiency translates into lower energy costs and reduced environmental impact, making it a smart choice for eco-conscious businesses.

The Raypak 992B comes equipped with advanced technologies that enhance performance and ease of use. Among these technologies is the high-precision digital control system, which allows for accurate temperature regulation and monitoring. This feature ensures optimal performance and minimizes energy waste, further contributing to the unit's cost-effectiveness. The boiler also utilizes a modulating burner system, enabling it to adjust flame size based on real-time heating demands. This adaptability not only enhances efficiency but also improves overall comfort within a facility.

Another significant characteristic of the Raypak 992B is its robust construction. Built with durable materials designed to withstand demanding operating conditions, this boiler is engineered for long-lasting performance. Its compact design is an added benefit, facilitating installation in areas with limited space. The unit is also equipped with a stainless steel heat exchanger, which provides superior resistance to corrosion and enhances heat transfer efficiency.

Safety features are also paramount in the design of the Raypak 992B. The boiler includes multiple safety controls and alarms to prevent overheating and maintain safe operating conditions. This diligence in safety ensures peace of mind for operators and reduces the risk of unexpected downtime.

In summary, the Raypak 992B stands out as a top choice for commercial heating solutions, combining high efficiency, advanced technology, and rugged construction. Its features cater to a wide range of heating needs while prioritizing safety and economy. With its impressive performance capabilities, the Raypak 992B continues to be a reliable partner for facilities seeking optimal heating solutions.
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