Raypak 009226 Digital P-R336A-EP-C #57 Pool and Spa Heater, Propane, 332,500 BTU, Copper Heat Exchanger, Electronic Ignition (Rheem 009976)

The Raypak Digital 336A is an atmospheric gas heater for pools and spas. This propane version has polymer headers, electronic ignition and a digital thermostat with an LCD display.

• Propane only. The natural gas 336A for the same elevation is a different item number (009218).
• Raypak lists separate propane 336A items with #58, #59 and #60 orifices for higher elevations (009230, 009234, 009238).
• Outdoor installation as shipped, using the stackless top packed with the heater. Indoor installation needs Raypak indoor stack kit 009840 and a vent to the outside.
• Pump flow between 35 and 100 GPM. Above 100 GPM Raypak calls for an external bypass valve.
• Raypak lists the Digital series at 82% thermal efficiency.
• Propane supply pressure 12 in. WC minimum, 13 in. WC maximum. Gas connection 3/4 in. NPT.
• A ProTek Shield sacrificial assembly under the inlet connection protects the heat exchanger from galvanic corrosion.
• Electronic intermittent ignition lights the pilot and main burners automatically on a call for heat.
• Digital control with LCD display: pool and spa modes, adjustable setpoint, status and diagnostic messages. Remote-ready for two-wire or three-wire control systems.
• Unitherm Governor (thermostatic mixing valve) and a built-in automatic bypass valve in the inlet/outlet header.
• Power 120 or 240 VAC, single phase, 60 Hz. Draws 4 A at 120 V or 2 A at 240 V. Not for 208 VAC.
• Water connections 2 in. slip, with CPVC unions. PVC pipe can be glued directly to the unions.
• Cabinet 26 in. wide, 28 in. deep, 38 in. high; 40 in. to the top of the outdoor stackless top. Flue diameter 8 in.
• In the carton: outdoor stackless (pagoda) top, two 2 in. CPVC union halves with O-rings, plastic finish flange for the gas line, bonding lug.
• Raypak limited warranty: two years parts and labor.
• Rheem cross-reference: Rheem item 009976, model P-M336A-EP-C #57. Ruud cross-reference: Ruud item 010008, model P-D336A-EP-C #57.

Good to know:

• Above 2,000 ft the manual reduces input 4% for each 1,000 ft above sea level.
• This is an atmospheric heater, not a Low NOx model. Raypak's Low NOx Digital heaters are the 207A to 407A models, and Raypak notes that some states and localities require Low NOx heaters.
• Propane is heavier than air and can collect in low or confined areas; Raypak calls for extra care when lighting propane heaters.
• The ProTek Shield is a wear item. Raypak says to replace it when its weight has dropped to about 40% of the original.
• Salt chlorinators and chemical feeders must be plumbed downstream of the heater. Raypak's water chemistry table allows up to 4,500 ppm salt.
• Gas, venting and electrical work must be done by a qualified installer or service agency and meet local codes. Raypak's warranty applies to heaters installed by a licensed service provider.