Model

20°F

T

30°F

T

40°F

T

Min. Flow

 

Max. Flow

 

No.

gpm

 

P (ft)

gpm

 

P (ft)

gpm

 

P (ft)

gpm

P (ft)

T

gpm

P (ft)

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

503

44

 

2.8

29

 

1.4

N/A

 

N/A

25

1.1

35

100

11.3

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

753

65

 

6.4

44

 

3.1

33

 

1.9

33

1.9

40

100

13.8

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1003

87

 

12.0

58

 

6.0

43

 

3.7

43

3.7

40

113

18.6

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1253

109

 

20.9

73

 

10.2

54

 

6.2

54

6.2

40

113

22.2

19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1503

N/A

 

N/A

87

 

16.0

65

 

9.5

65

9.5

40

113

25.5

23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1753

N/A

 

N/A

102

 

22.5

76

 

13.4

76

13.4

40

113

27.2

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2003

N/A

 

N/A

116

 

32.0

87

 

18.9

87

18.9

40

116

32.0

30

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes: Basis for minimum flow is ∆T . Basis for maximum flow is gpm.

 

 

 

 

 

 

 

 

 

 

Table F: Heater Rates of Flow and Pressure Drops

 

 

 

 

Piping

All high points should be vented. A heater installed above radiation level must be provided with a low wa- ter cut-off device (sales order option F-10). This heater, when used in connection with a refrigeration system, must be installed so that the chilled medium is piped in parallel with the heater with appropriate valves to pre-vent the chilled medium from entering the heater.

The piping system of a hot water heater connected to heating coils located in air handling units where they may be exposed to circulating refrigerated air, must be equipped with flow control valves or other automatic means to prevent gravity circulation of the heater water during the cooling cycle. It is highly recommend- ed that the piping be insulated.

Air-Separation/Expansion Tank

All heaters should be equipped with a properly sized expansion tank and air separator fitting as shown in Fig. 11.

THERMOSTAT OR

SYSTEM SENSOR

*

*Maximum 4 times the pipe diameter or 12”, whichever is less.

Fig. 12: Single Heater - Low-Temperature (Heat Pump)

Application with Primary/Secondary Piping

 

 

THERMOSTAT OR

 

 

SYSTEM SENSOR

 

 

*

Fig. 11: Air-Separation/Expansion Tank

 

*Maximum 4 times the pipe diameter or 12”, whichever is less.

 

Fig. 13: Dual Heaters (Reverse/Return)

 

15

with Primary/Secondary Piping

 

 

Page 14 Page 16
Page 15
Image 15
Raypak 503-2003 manual Piping, Air-Separation/Expansion Tank, Model 20F 30F 40F Min. Flow Max. Flow Gpm
Page 14 Page 16

503-2003 specifications

The Raypak 503-2003 is a notable entry in the world of water heating solutions, renowned for its efficiency and reliability in both residential and commercial settings. This model is designed to provide exceptional performance while maintaining ease of use and minimization of environmental impact.

One of the standout features of the Raypak 503-2003 is its advanced heating technology. The unit utilizes a durable, copper heat exchanger which ensures quick and efficient heating of water. This heat exchanger is known for its ability to transfer heat effectively, leading to reduced energy consumption and lower utility bills. The design also allows for a seamless operation, ensuring that the system heats water swiftly without sacrificing performance.

In addition to its efficient heating capabilities, the Raypak 503-2003 is equipped with innovative controls. The digital control panel allows users to easily set and adjust the desired water temperature. This feature provides a level of convenience that simplifies operation while enhancing user experience. Furthermore, the smart technology employed in the unit ensures that it operates within optimal parameters, avoiding unnecessary energy expenditure.

Durability is another hallmark of the Raypak 503-2003. Built with heavy-duty components, this water heating solution is designed to withstand the rigors of continuous use. The rugged construction ensures longevity, making it a cost-effective investment for homeowners and businesses alike. Moreover, the unit is designed to be resistant to corrosion and wear, further extending its lifespan and reliability.

The energy efficiency of the Raypak 503-2003 is a crucial characteristic that sets it apart from competitors. Rated with a high efficiency score, this model contributes to lower emissions and is environmentally friendly. It adheres to various energy standards, making it a suitable choice for those looking to reduce their carbon footprint while enjoying reliable water heating.

Noise reduction is another important feature of the Raypak 503-2003. Designed with quiet operation in mind, the unit operates with minimal noise pollution, allowing for a pleasant environment in both residential and commercial spaces.

In summary, the Raypak 503-2003 combines advanced heating technology, user-friendly controls, durability, and energy efficiency into a robust water heating system. This makes it an excellent choice for those in need of dependable and sustainable heating solutions. Whether for daily home use or for larger commercial applications, the Raypak 503-2003 stands out as a leader in its class.
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