Raypak 185, 335, 405, 265 Start UP Procedures, Emergency Shutdown, Draft Proving Switch

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START UP PROCEDURES

The water system, the gas system and the electrical system for the heater should be completed and checked as per the heater installation manual and associated documents.

1.Turn on power to the heater with the manual main gas valve and pilot gas valve off. The electric power supply requirements are:

Dual-voltage fan motor.

120/240 volt 60Hz 1.0/1.95 Amp fan motor for appliance sizes 181-401.

2.Check power connections.

3.Close heater power switch.

4.Set operating control to call for heat.

a. Fan motor starts, draft proving switch closes.

b. Heater pump starts, flow switch closes. c. Ignition module energized.

d. Check for spark at gas pilot.

5.Turn operating control to end call for heat.

6.Wait a minimum of 60 seconds.

7.Open pilot gas valve.

a. Repeat procedure outlined in #4 above.

8.After pilot gas is proven and main safety shut-off valve is energized.

-Main burners will ignite.

9.Heater will operate until call for heat is satisfied.

11.Restart unit and visually check all compo- nents for proper operation.

12.Check all vent connections and joints for leakage. Correct if found.

13.To restart unit after a failure, follow the procedures outlined above and other subse- quent or related sections outlined in the heater manual.

EMERGENCY SHUTDOWN

SHUT OFF ALL POWER AND GAS, CALL GAS UTILITY.

DRAFT PROVING SWITCH

The draft proving switch insures that the blower is operating. The switch is in the limit circuit and does not allow the ignition module to operate unless it is closed.

FIG #9359

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Contents For Your Safety 185, 265, 335181/182, 260/261, 330/331, 400/401 Power Vent Assembly INSTALLATION, START-UP and Operation General SpecificationsReceiving Equipment Installation Requirements Mounting Power Vent AssemblyMounting Power Vent Assembly Venting Reduced Maximum Equivalent Vent Run feetThrough the Wall Vent Pool Heater Atmospheric Pool Heater Low NOx 182-260 WH1 Atmospheric 181-261 WH1 Low NOx Dimensional Data Model Sequence of OperationStart UP Procedures Draft Proving SwitchEmergency Shutdown Illustrated Parts List

265, 405, 335, 185 specifications

Raypak, a leading manufacturer in the heating solutions industry, offers a robust range of commercial and residential heating systems, including the Raypak models 405, 265, 335, and 185. These units are designed with advanced technology to provide efficient, reliable heating for swimming pools, spas, and hydronic heating systems.

One of the standout features of the Raypak series is its use of a fully modulating gas valve. This technology allows the heaters to adjust their output efficiently according to the heating demand, ensuring optimal energy consumption and maintaining consistent water temperatures. Additionally, each model is equipped with an advanced digital control system that offers precise temperature settings, easy programming, and user-friendly operation.

The Raypak 405 model is known for its high BTU output, making it ideal for larger commercial pools or spas. It boasts a durable construction designed to withstand harsh weather conditions, featuring a rust-resistant cabinet that ensures longevity and reliability. The model also employs a high-efficiency heat exchanger, which improves heat transfer and minimizes energy loss.

Similarly, the Raypak 265 and 335 models provide a balance of power and efficiency for mid-sized applications. The 265 is perfect for smaller commercial spaces while maintaining robust performance. The 335 offers additional heating capacity, making it suitable for slightly larger pools or spas. Both models include Raypak's patented PolyTuf powder coating, which enhances their durability and resistance to corrosion and fading.

The Raypak 185 model caters primarily to residential heating needs, ensuring homeowners can enjoy warm pools and spas without excessive energy costs. It combines compact design with powerful performance, allowing it to fit seamlessly into smaller spaces without sacrificing efficiency.

Another notable technology present in all Raypak models is the use of a titanium heat exchanger, which provides superior resistance to scale and corrosion. This feature is particularly advantageous in areas with hard water, where traditional heat exchangers may fail prematurely.

In conclusion, the Raypak 405, 265, 335, and 185 models represent the latest advancements in heating technology. With features such as modulating gas valves, advanced digital controls, durable construction, and efficient heat exchangers, these units are well-equipped to meet the diverse heating needs of both residential and commercial applications. Raypak continues to set the standard in the industry, ensuring reliable performance and energy efficiency for years to come.