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 preset at 4" W. C. for natural gas, and 11" W. C. for propane gas. The pressure at the gas valve, taken with a manometer, should be about 3.7" W. C. natural gas (3.9" W.C. for Low NOx) 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.

 

ELECTRONIC IGNITION GAS VALVES-CONTINUED

Fig # 9328

Fig # 9329

 

Gas

 

Pressure

 

Adjustment

Robertshaw 7200

Robertshaw 7000 BDER

Model 185

Model 265-335

Gas

Fig # 9327Pressure

Adjustment

Robertshaw 7000 DERHC

Model 405

PIPE SIZING FOR GAS CONNECTIONS

Fig. # 8149Fig. # 9365

ATMOSHPERIC

LOW NOx

GAS PRESSURE ADJUSTMENT LOCATIONS

MILLIVOLT GAS VALVES

Gas

Pressure

Adjustment

Fig # 9263

Robertshaw 7000

Models 185 thru 405

ELECTRONIC IGNITION GAS VALVES

Gas

Pressure

Adjustment

Honeywell VR8304

 

Models 185 thru 405

Fig # 9264

 

Low NOx units are not available in propane.

PLUMBING FOR WATER CONNECTIONS

LOCATION

The RP 2100 heater requires water flow and positive pressure to fire and operate properly. It must therefore be installed downstream of the discharge side of the filter pump. A typical installation is plumbed as follows:

1.The inlet side of the filter is plumbed directly to the discharge side of the filter pump;

2.The outlet side of the filter is then plumbed to the inlet of the heater; and

3.The outlet of the heater is plumbed to the return line to the pool or spa. The pump, filter and heater are thus plumbed in series.

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Raypak P-R405A, RP2100, C-R185A GAS Pressure Regulator, Pipe Sizing for GAS Connections, GAS Pressure Adjustment Locations

C-R185A, P-R405A, RP2100 specifications

Raypak is a leading manufacturer in the heating and cooling industry, renowned for its innovative products that cater to both residential and commercial sectors. One of its product lines, the RP2100 series, exemplifies cutting-edge technology and features designed to enhance efficiency and performance in pool heating systems.

The RP2100 models, particularly the P-R185B through R-P405B series, incorporate advanced heat exchanger technology, enabling them to offer exceptional heat transfer efficiency. The titanium heat exchangers are designed for durability and resistance against corrosion, particularly in saltwater environments, ensuring the longevity of the system. These units are engineered for both outdoor and indoor applications, with the versatility to adapt to various heating requirements.

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The P-R185BL to P-R405BL and C-R185BL to C-R405BL models feature noise-reducing technology, making them suitable for residential settings where peace and quiet are paramount. They utilize advanced acoustic insulation materials that minimize operational noise without sacrificing performance.

In summary, the Raypak RP2100, P-R185B to R-P405B, C-R185B to C-R405B, P-R185BL to P-R405BL, and C-R185BL to C-R405BL series represent the pinnacle of innovation in pool heating solutions. With their durable construction, energy-efficient designs, and advanced technologies, these models are ideal for users seeking reliability, efficiency, and quiet operation in both residential and commercial environments. Investing in Raypak products ensures superior heating performance, longevity, and overall satisfaction.