Raypak Digital and Millivolt Gas Heater User Manual
P
Designation for a Digital heater using propane gas is “EP”; a Digital heater using natural gas is “EN”.
Designation for a Millivolt heater using propane gas is “MP”; a Millivolt heater using natural gas is “MN”.
Prefix “P” is for plastic (polymer) headers; “C” is for cast iron (ASME) headers.
Suffix “X” is for cupro-nickel tubing; “C” is for copper tubing
Example: P-R406A-EN-X = Plastic headers, 406 model size, digital, natural gas, cupro-nickel
Reduce input 4% for each 1000 feet above sea level when installed above 2000 feet elevation.
Manufactured under Patent No. 3,623,458.
Swimming Pool and Spa
Heating Products
Technical Data
Digital and Millivolt Gas Heaters
Heater
Model
BTUH
Input
(000)
(A)
Cabinet
Width
(B)
Flue
Diameter
(C)
Indoor
Drafthood
(J)
Minimum Gas
Conn.
Water
Conn.
Shipping Weights (lbs)
w/ Polymer
Headers
and Stackless
Top
w/ cast iron
Headers
and Stackless
Top
Indoor
Drafthood
R206A 199.5 20” 6” 61-5/8” 11-7/8” 3/4” 2” 187 206 12
R266A 266.0 23” 7” 62” 11” 3/4” 2” 210 229 15
R336A 332.5 26” 8” 63” 10-5/8” 3/4” 2” 230 249 17
R406A 399.0 29” 9” 64-1/2” 12-5/16” 3/4” 2” 249 268 20
Amp Draw
120 volt 240 volt
Digital 4 2
HEATER
CAN BE INSTALLED DIRECTLY
ON A COMBUSTIBLE
SURFACE!
The Pool and Spa Heating Experts
sm
B
8-7/8"
(6-5/8" ASME)
40"
STACKLESS
OUTDOOR TO
C
INDOOR
DRAFTHOOD
38"
13-1/4"
CONNECTION
GAS
J
26-5/8"
(28-5/8" ASME)
32-11/16"
ELECTRICAL
CONNECTION
4-3/8"
(3-3/8" ASME)
A
28"
Technical Data
All models
• PolyTuf Textured Powder Coating
The Raypak gas heater has a polyester-coated, non-corrosive cabinet that is more
durable than solventborne- and waterborne-coated metal cabinets. Every piece of
sheet metal goes through a 7-stage wash system, making certain the powder
paint has a perfect bond. Underneath the tough, yet beautiful finish you will find
galvanized metal that offers superior rust prevention and years of durable
service.
•Wind-Resistant Design
No need for fans to combat drafting problems. This heater is designed to draft
naturally in outdoor installations with its exclusive low-profile design. It is so
thoughtfully and carefully designed it actually protects itself from the things that
tend to stifle ordinary pool and spa heaters. It delivers uninterrupted heating
performance regardless of falling leaves, wind, airborne debris, rain, downdrafts,
updrafts, sleet, snow, etc.
• Polymer Headers
Polymer headers prevent rust stains from harming your pool’s surface, giving you
years of trouble-free swimming pleasure.
• All-Copper-Fin-Tube Heat Exchanger
The fin tubes of the heat exchanger are each made from a single piece of extruded
copper. This integral-fin design allows maximum heat transfer to be attained and
maintained. Cupro-nickel is also available as an optional upgrade.
• Stainless Steel Tube Sheet
Stainless steel tube sheets are used on all RP2100 heaters with the polymer
headers. This allows for a completely nonferrous waterway, leaving your pool truly
rust-free.
• CPVC 2" Water Connections
Standard with every Raypak is a set of 2" slip-fit CPVC water connections to make
your installation secure and effortless.
• Condensation Protection
The Unitherm Governor helps reduce condensation from low inlet water
temperatures. It automatically regulates the water flow to help keep the water
temperature in the heat exchanger above 105°F. Both water temperature and
water flow rate are controlled to eliminate condensation, sooting, and scale
build-up that can shorten heater life.
• High Flow Rates
The Raypak gas heater comes with an automatic bypass built into the header.
You'll find that the heater is capable of handling water flow at a rate up to 125
gpm.
• Burner Tray
Every burner tray is built to last, from the stainless steel burners to the
aluminized metal used in the heat sensitive areas. Innovative design allows for
the easy removal of the tray and burners for servicing.
• Fire Tile
A ceramic fiber combustion box keeps your heater running efficiently while
keeping the outside jacket cool. By using this space-age material the heater
won't retain residual heat after it is turned off, allowing it to be installed without
the use of costly metal heat sinks.
• Fuel-Efficient
Energy-smart Raypak heaters consistently achieve the highest efficiency ratings.
They exceed all federal and state standards.
Digital models only
• Microprocessor-Controlled Thermostat
The Raypak Digital gas heater features a microprocessor-based control center.
This control allows you to set your pool or spa temperature precisely at your
favorite setting just by pressing the up or down temperature control buttons.
• Self-Diagnostic
On-board diagnostic controls let the user and the service professional know what
is going on with the heater at all times. In the event that you would ever have a
problem with the heater, the digital display will indicate the source.
• Remote-Compatible
Compatible with most major pool control and remote systems on the market
today. Any two-wire or three-wire remote can connect to the heater and be
integrated into the pool control system of your choice.
• Electronic Ignition
Raypak Digital heaters come standard with intermittent spark ignition pilot
safety controls. What this means is that the pilot only comes on when there is a
call for heat. This provides an energy-efficient way to control your heater’s gas
usage by eliminating the need for a continuous pilot.
Millivolt models only
•Mechanical Thermostat
The Raypak Millivolt gas heater comes with one mechanical thermostat. This
control allows you to set your pool or spa temperature precisely at your favorite
setting.
• Millivolt Controls
No power source is required for the Raypak Millivolt heater. All operating
electricity is supplied by the pilot thermocouple.
Quality assurance
• ISO 9001
We are proud to be an ISO 9001 registered manufacturing plant. It’s one more
reason why Raypak is number one in the heater industry today.
• End-of-Line Test
Every Raypak gas pool heater is plumbed and test-fired before it is put in the
carton. This ensures that your heater will work right out of the box and continue
to give you years of trouble-free operation.
• Quality Check Points
The Raypak assembly process includes six final assembly quality check points
that help to ensure that every Raypak gas heater is built correctly, and built to
last.
• CSA-Certified
All of Raypak’s gas pool heaters are CSA-certified and are tested by CSA to the
ANSI Z21.56 standard.
Features
Swimming Pool and Spa
Heating Products
6000.35 • 10-01-04
In keeping with its policy of continuous progress and product improvement, Raypak reserves the right to make changes without notice
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