Preparation

WARNING: Do not turn on gas at this time.

Check Power Supply

With multi-meter at incoming power, check voltage between:

Hot - Common (≈120 VAC)

Hot - Ground (≈120 VAC)

Common - Ground (< 1 VAC)

WARNING: If Common - Ground is > 1 VAC,

STOP: Contact electrician to correct ground failure. Failure to do this may burn out 120V-24V transformer, or may cause other safety control damage or failure.

Attach Manometers to Measure Pressures

1.Turn off main gas valve.

2.Attach 24” scale manometer to the first main gas shut-off valve pressure tapping.

3.Attach (1) 12” scale manometer to the outlet side of the second main gas shut-off valve pressure tapping.

4.Attach (1) 12” scale manometer near the fan-prov- ing switch. Pull black cap from air pressure switch tee and connect the manometer. NOTE: Retain caps for reinstallation later.

Check Gas Supply Pressure

1.Slowly turn on main gas shut-off valve.

2.Read the gas supply pressure from the manome- ter; minimum supply pressure for natural gas is 5.0 in. WC, recommended supply is 7.0 in. WC, mini- mum supply pressure for propane gas is 11.0 in. WC (dynamic readings, all stages firing).

3.If the pressure is > 14.0 in. WC, turn off the valve.

4.Check if the service regulator is installed and/or adjust the service regulator.

Start-Up

Blower Adjustment

1.Turn off power.

2.Unplug cap at pressure switches and connect ma- nometer(s) to the tee.

3.Close all manual firing valves.

4.Turn power on.

5.Check manometers attached to fan pressure switch. The reading should be 1.4 ± 0.1 in. WC for propane gas and natural gas. If not, adjust the air shutter on the blowers to attain the correct value.

6.Turn power off.

7.Reconnect this cap.

Main Burner Adjustment

1.Turn off unit.

2.Open manual firing valves.

3.Turn on the unit, wait 15 seconds, and the igniter should glow. Look into sight glass located at each end of the heater to check igniter operation. Gas valves should open in 45-60 seconds.

4.If burner does not light on first trial. It will retry, up to three times.

5.Main burner ignition: Check manifold gas pressure at gas valve outlet pressure tap. This should read 3.5 ± 0.1 in. WC for natural gas and 10.5 ± 0.1 in. WC for propane gas.

6.If the pressure reading differs by more than ± 0.1 in. WC, remove screw cover from the gas pres- sure regulator and adjust main burner manifold pressure. Replace the screw cover. Repeat steps 2 to 5 on other valves as necessary.

CAUTION: Special manifold and air settings may be required. Verify rating plate and blower housing.

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Raypak 399B-2339B operating instructions Start-Up, Blower Adjustment, Main Burner Adjustment
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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.
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