Raypak 302BD-2342BD instruction manual Gas Supply Pressure, Bleeds/Vents

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Low Gas Pressure Switch (Optional on 302BD-902BD)

Fig. 2: Gas Supply Connection - Top View

Gas Supply Pressure

A minimum of 5.0 in. WC and a maximum of 10.5 in. WC upstream gas pressure is required under load and no-load conditions for natural gas. A minimum of 8.0 in. WC and a maximum of 13.0 in. WC is required for propane gas. The gas pressure regulator(s) supplied on the heater is for low-pressure service. If upstream gas pressures exceed 14.0 in. WC, intermediate gas pressure regulators, of the lockup type, must be installed.

CAUTION: Do not use Teflon tape on gas line pipe thread. A pipe compound rated for use with natural and propane gases is recommended. Apply sparing- ly only on male pipe ends, leaving the two end threads bare.

CAUTION: Support gas supply piping with hang- ers, not by the heater or its accessories. Make sure the gas piping is protected from physical damage and freezing, where required.

When connecting additional gas utilization equipment to the gas piping system, the existing piping must be checked to determine if it has adequate capacity for the combined load.

The gas valve pressure regulator(s) on the Hi Delta heater are nominally preset at 3.5 in. WC. The pres- sure regulator on the FlexGas propane system is nominally set at 2.2 ± 0.1 in. WC. This can be verified by measuring the propane gas pressure at the upper manifold pressure tap shown in Fig. 5. The pressure at the gas valve(s) outlet tap, measured with a manome- ter, while in operation should be 3.5 ± 0.1 in. WC for natural gas. A nominal pressure of 1.3 in. WC will be observed at the individual heater gas valve outlet taps on propane gas. See Fig. 5 for gas pressure measure- ment locations.

CAUTION: DO NOT adjust the individual heater gas valve pressure settings when firing with propane gas. Propane adjustments (if neces- sary) should ONLY be made to the FlexGas propane regulator.

NOTE: DO NOT adjust the FlexGas propane regu- lator setting without verifying proper operation including the use of a flue gas analyzer.

Bleeds/Vents

This FlexGas gas train is equipped with an propane gas regulator and low gas pressure switch (optional on 302BD-902BD) which may need to be vented to the outdoors as required by state and local codes. If these components are required to be vented, the cover must be removed and vent lines installed into the compo- nents and ran to a suitable location outside the building in compliance with the NFGC. See Fig.3.

Fig. 3: FlexGas Cover Removal & Vent Locations

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Contents FlexGas Page Ratings and Certifications Model IdentificationModel Input Pipe Size NatComponent Locations Installation CodesGas Supply Bleeds/Vents Gas Supply PressureStart-up For Your SafetyPre Start-up Check Initial Start-upFlexGas System Start-up Preparation Check Power SupplyAttach Manometers to Measure Pressures Check Gas Supply PressureFlexGas Operation Changing Fuels Safety InspectionFollow-Up From NAT to PROOptional on 302BD-902BD Wiring DiagramPage Call OUT Description

302BD-2342BD specifications

The Raypak 302BD-2342BD is a standout in the realm of commercial water heating, designed to meet the needs of various applications while ensuring efficiency and reliability. Known for its robust construction and state-of-the-art technology, this model is a preferred choice for both residential and commercial users.

One of the key features of the Raypak 302BD-2342BD is its dual thermostat functionality. This feature allows for precise temperature control, making it suitable for diverse heating requirements. With a maximum output of 302,000 BTUs, this unit can handle large volumes of water, making it ideal for swimming pools, spas, and other high-demand situations.

The Raypak 302BD-2342BD is also equipped with a highly efficient heat exchanger. Constructed from copper, the heat exchanger provides superior thermal conductivity, allowing for faster heating and improved energy efficiency. This contributes to reduced operating costs, a crucial consideration for commercial applications where budget constraints are paramount.

Another notable characteristic of this model is its compact design. The unit is engineered for easy installation, taking up minimal space while still delivering powerful performance. This aspect is particularly advantageous in commercial settings where space can be a significant limiting factor.

Safety and user-friendly operation are prioritized in the design of the Raypak 302BD-2342BD. It features an integrated digital display, providing users with real-time information about the unit's performance and conditions. Furthermore, the model includes built-in diagnostic features, allowing for easy troubleshooting and maintenance.

The Raypak 302BD-2342BD also boasts advanced flame sensing technology, ensuring a secure and reliable ignition process. This feature enhances safety while promoting efficiency by optimizing combustion levels.

Lastly, the unit is compatible with various fuel types, including natural gas and propane. This versatility ensures that users can select the most suitable fuel source based on availability and cost considerations.

In summary, the Raypak 302BD-2342BD represents the pinnacle of modern water heating technology, boasting features such as dual thermostats, a high-efficiency heat exchanger, a compact design, and advanced safety measures. Its combination of power, efficiency, and versatility positions it as a leader in the market, meeting the heating needs of both residential and commercial users alike.
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