SECTION D: Start up

5.Check blower motor amp draw and the manometer attached to fan pressure switch with the blower running at 100% speed. The reading should be as noted in Tables P and Q for both natural gas and propane gas. If not, adjust the air shutter on the blower to attain the correct values.

6.Measure the blower amp draw and compare the measured values to the values in Table P. If the measured value is different than the values in the table (with the noted tolerance), contact the factory.

NOTE: Connect the amp probe to the 14 Ga. black power wire going into the blower.

7.Turn power off.

8.Disconnect the manometer and reconnect the cap.

Model

Amp Draw

Setting

Tolerance

 

 

503

1.9

+0.0/-0.2

 

 

 

753

2.9

+0.0/-0.2

 

 

 

1003

4.8

+0.0/-0.2

 

 

 

1253

6.3

+0.0/-0.2

 

 

 

1503

8.1

+0.0/-0.2

 

 

 

1753

13.5

+0.0/-0.5

 

 

 

2003

14.8

+0.0/-0.5

 

 

 

Table P: MVB Blower Amp Draw

Model

Air Pressure Setting*

(in. WC)

 

 

 

503

-2.3

 

 

753

-2.9

1003

-3.0

 

 

1253

-3.5

 

 

1503

-4.0

1753

-4.6

 

 

2003

-4.1

 

 

* Settings +/- 0.2” WC

Table Q: MVB Air Pressure Requirements

Manifold Adjustment

1.Turn off unit.

2.Open manual firing valves.

3.Turn on the unit, wait approximately 15 seconds, and the igniter should glow (observable through the observation port located at the front, bottom of the heater). Look into sight glass located at the bottom of the front panel to check igniter operation. Gas valve should open in 45-60 seconds.

4.If burner does not light on first trial. It will go into lockout with the standard ignition module. If it is equipped with the optional 3-try ignition module, it will try for ignition up to three times.

5.Main burner ignition: Check manifold gas pressure at gas valve outlet pressure tap (connection “C” in Fig. 39). This should read per the values in Table R for natural gas and propane gas.

6.If the pressure reading differs by more than ± 0.2 in. WC, STOP – Call the factory for directions on what to do next!

CAUTION: Special manifold and air settings may be required.

 

Manifold Gas Pressure Setting*

Model

High Fire Values (in. WC)

 

Natural Gas

LP Gas

503

-0.1

-0.1

 

 

 

753

-0.1

-0.1

 

 

 

1003

-0.2

-0.2

1253

-0.1

-0.1

 

 

 

1503

-0.4

-0.3

 

 

 

1753

0.4

0.4

2003

0.6

0.6

* Settings +/- 0.2” WC

Table R: MVB Manifold Gas Pressure Settings

43

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Image 45
Raypak 503-2003 manual Manifold Adjustment
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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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