GAS SUPPLY CONNECTIONS

Gas piping must have a sediment trap ahead of the heater gas controls, and a manual shut-off valve lo- cated outside the heater jacket. All gas piping should be tested after installation in accordance with local codes.

Manual Shut-Off

Heater Jacket

Gas Valve

Valve

 

 

 

Gas Inlet

Union

 

Sediment Trap

Fig. # 8090.0

CAUTION: The heater and its manual shut off valve must be disconnected from the gas supply during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45 KPA). Dissipate test pressure in the gas supply line before reconnecting the heater and its manual shut off valve to gas supply line.

FAILURE TO FOLLOW THIS PROCEDURE MAY DAMAGE THE GAS VALVE. OVER PRESSURED GAS VALVES ARE NOT COVERED BY WARRANTY. The heater and its gas connections shall be leak tested before placing the appliance in operation. Use soapy water for leak test. Do NOT use open flame.

NOTE: Do not use teflon tape on gas line pipe thread. A flexible sealant is recommended.

A minimum of 7" W.C. and a maximum of 14" W.C. upstream pressure under load, and no load conditions must be provided for natural gas or a minimum of 12" W.C. and a maximum of 14" for propane gas.

GAS PRESSURE REGULATOR

The gas pressure regulator is present and sealed at 4"W.C. for natural gas, and 11"W.C. for propane gas. Between the gas valve and the burners is a 1/8" pipe plug. The pressure at this point , taken with a manometer, should be about 3.7"W.C. natural gas and 10.5"W.C. propane gas. If an adjustment is needed, remove seal and turn adjustment screw clockwise

to increase pressure or counter-clockwise to decrease pressure.

Manometer

Gas Pressure

Test Upstream

Manual Shut

Off Valve

Gas Valve

Gas Pressure Test

at Gas Valve

Gas Pressure Test at Heater

Fig. # 8149.0

ROBERTSHAW VALVE

W. C. adjustment

HONEYWELL VALVE

W. C. adjustment

Fig. # 8081.0

PIPE SIZING FOR GAS CONNECTIONS

MAXIMUM EQUIVALENT PIPE LENGTH

Natural Gas 1000BTU/FT3 .60 Specific Gravity

@ 0.5" WC Pressure Drop

Propane Gas 2500BTU/FT3 1.53 Specific Gravity

@ 0.5" WC Pressure Drop

MODEL

 

 

1/2"

 

3/4"

 

1"

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

P

N

 

P

N

 

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

155B

15

 

35

60

 

145

200

 

500

 

 

 

 

 

 

 

 

 

 

 

 

 

14

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Raypak 155C installation instructions GAS Supply Connections, Pipe Sizing for GAS Connections
Page 13 Page 15

155C specifications

The Raypak 155C is a versatile and efficient heater designed for both residential and commercial applications. Renowned for its robust construction and reliable performance, this unit is an excellent choice for pool and spa heating as well as for providing comfortable ambient temperatures in enclosed or outdoor spaces.

One of the standout features of the Raypak 155C is its innovative copper heat exchanger, which is designed for maximum heat transfer efficiency. This technology allows for rapid heating capabilities, ensuring that water reaches the desired temperature quickly and effectively. The heat exchanger is also resistant to corrosion, thanks to its durable design, prolonging the unit's life and maintaining performance over time.

Designed with user convenience in mind, the Raypak 155C features an intuitive digital control system. This user-friendly interface allows for easy temperature adjustments and monitoring, giving users precise control over their heating requirements. An integrated diagnostic system is also included, providing real-time feedback on the heater's performance and alerting users to any potential issues, which helps in proactive maintenance.

Incorporating advanced safety features, the Raypak 155C includes a high limit switch and a water flow switch, ensuring safe operation at all times. These safety mechanisms prevent overheating and dry firing, protecting both the heater and the connected plumbing system.

The Raypak 155C is engineered for energy efficiency, meeting and exceeding industry standards. With a compact design, it ensures easy installation and integration into existing setups, making it a favorable choice for various applications. Its quiet operation adds to user comfort, allowing it to be installed in residential settings without causing disturbances.

With a heating capacity of 155,000 BTU, the Raypak 155C is capable of effectively heating larger pools and spas, making it ideal for homes with extensive water features. The heater is designed to run on natural gas or propane, providing flexibility based on user preferences and availability.

Overall, the Raypak 155C combines state-of-the-art technology with practical features, making it one of the top choices for those looking to enhance their pool experience or improve comfort levels in their outdoor areas. Its reliability, efficiency, and user-friendly features make it a valuable investment for any property.
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