Pentair ETi 400 User manual

INSTALLATION GUIDE
ETi®400 POOL HEATER
FUEL GAS CONVERSION KIT
NATURAL GAS TO PROPANE (LPG)
P/N 476072
IMPORTANT!
WARNING! FOR YOUR SAFETY: THIS PRODUCT MUST BE INSTALLED
AND SERVICED BY AUTHORIZED SERVICE PERSONNEL
QUALIFIED IN POOL/SPA INSTALLATION

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
2
P/N 476079 Rev A 3/2017
Customer Service and Technical Support
If you have questions about ordering Pentair Water Pool and Spa
replacement parts, and pool products, please call:
Phone: [phone]
Fax: [phone]
(8 AM to 7:30 PM Eastern Time/PacificTime)
Web sites: www.pentairpool.com
Contents
IMPORTANT WARNING AND SAFETY INSTRUCTIONS................................ 3-4
Conversion Procedure (NG to Propane) Overview ................................................5
Gas Connection ...............................................................................................6
Propane Conversion Kit Installation Instructions...............................................8
Gas Supply Verification Instructions.................................................................12
Sequence of Operation....................................................................................13
Specifications...................................................................................................14
Parts List..........................................................................................................14

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Most states and local codes regulate the construction, installation, and
operationofpublicpoolsandspas,andtheconstructionofresidentialpoolsand
spas. Itis importanttocomply withthesecodes,manyofwhich directlyregulatetheinstallation
and use of this product. Consult your local building and health codes for more information.
SERIOUS BODILY INJURY OR DEATH CAN RESULT IF THIS
PRODUCT IS NOT INSTALLED AND USED CORRECTLY.
Before installing this product, read and follow all warning notices
and instructions in this Guide. Failure to follow warnings and
instructions can result in severe injury, death, or property damage.
Call [phone] for additional free copies of these instructions.Please refer to www.
pentairpool.com for more information related to this products.
IMPORTANT NOTICE - Attention Installer: This Installation Guide
(“Guide”) contains important information about the installation, operation
and safe use of this product.This Guide should be given to the owner and/or
operator of this heater.
IN CANADA: THE CONVERSION SHALL BE CARRIED OUT IN ACCORDANCE WITH THE
REQUIREMENTS OF THE PROVINCIAL AUTHORITIES HAVING JURISDICTION AND IN
ACCORDANCE WITH THE REQUIREMENTS OF THE NATURAL GAS AND PROPANE
INSTALLATION CODE CSA B149.1
READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL
INSTALLERS, POOL OPERATORS AND POOL OWNERS MUST
READTHESE WARNINGS AND ALL INSTRUCTIONS BEFORE
USINGTHE ETi®400 HEATER.
IMPORTANT WARNING AND SAFETY INSTRUCTIONS
Failure to follow instructions could result in fire or explosion with
serious injury or property damage.This conversion kit shall be installed
by a qualified service agency in accordance with the manufacturer’s
instructions and all applicable codes and requirements of the
authority having jurisdiction.The information in these instructions must
be followed to minimize the risk of fire or explosion or to prevent
property damage, personal injury, or death.The qualified service agency
is responsible for the proper installation of this kit.The installation is not
proper and complete until the operation of the converted appliance is
checked as specified in the manufacturer’s instructions supplied with the
kit.

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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IMPORTANT WARNING AND SAFETY INSTRUCTIONS
Risk of fire or explosion from incorrect fuel use or faulty fuel
conversion. Do not try to run a heater set up for natural gas on propane
gas or vice versa. Only qualified service technicians should attempt to
convert heater from one fuel to the other. Do not attempt to alter the
rated input or type of gas by changing the orifice. If it is necessary to
convert to a different type of gas, consult your Pentair dealer.
Serious malfunction of the burner can occur which may result in loss
of life. Any additions, changes, or conversions required in order for the
appliance to satisfactorily meet the application needs must be made by
a Pentair dealer or other qualified agency using factory specified and
approved parts.
Risk of explosion if a unit converted to propane gas is installed in a
pit or other low spot. Propane is heavier than air. Do not install the heater
using propane in pits or other locations where gas might collect.
Consult your local building code officials to determine installation
requirements of heater relative to propane storage tanks and filling
equipment. In Canada, Installation must meet the requirements of the
Standard for the Storage and Handling of Liquid Petroleum Gases,
CAN/CSA B149.1 (latest edition). In the U.S. installation must meet the
requirements of the Standard for the Storage and Handling of Liquefied
Petroleum Gases, ANSI/NFPA 58 (latest edition). Consult local codes and
fire protection authorities about specific installation restrictions.
Propane (LPG) fired heaters must not be installed in garages in
Massachusetts, by order of the Massachusetts State Fire Marshall. For
more information, call the Fire Marshall’s office.

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Conversion Procedure (NG to Propane) Overview
Before proceeding with the Natural Gas to Propane Gas conversion for the ETi®400
Heater, please verify that the kit contains all of the parts listed shown below.
Tools Required
You will need the following tools and instruments for this conversion:
2 Air orifices
2 Direct spark igniters with gaskets attached
2 Gas orifices with o-rings attached
(Gas Orifices have the letters “NL” stamped on them).
1 5/16” socket wrench or nut driver
1 T20 bit Torx screw driver
1 Channel locks
1 Adjustable wrench, 2-1/2” Capacity
1 Adjustable wrench, 1-1/2” Capacity
1 Flat Blade Screwdriver
1 3/16” Hex key (Allen wrench)
2 2 Ft. lengths of 1/4” flexible plastic or rubber tubing
2 1/8” NPT barbed fittings
1 Pipe Sealant approved for use with natural gas or Propane
1 Pressure gauge or manometer with range to 14”W.C. (High Pressure Gauge)
1 Differential pressure gauge or slope gauge (inclined manometer) capable of
reading to a resolution of 0.05”W.C.(Low Pressure Gauge)
1 Flue-gas analyzer reading CO2 (optional)
Note: Do not attempt the heater conversion without all the listed tools shown above.
Figure 1: Required Tools.

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Gas Connections
The heater requires a gas supply of not less than 4" (10.2 cm) wc and not more than 12"
(35.6 cm) wc. Gas supply pressures outside of this range may result in improper burner
operation.A minimum inlet pressure of 4" (10.2 cm) wc is required to maintain input rating.
The gas supply must be installed in accordance with standard CSA B149.1 or ANSI/NFPA
58 (as applicable), and all applicable local codes. Install a manual shut-off valve and a
sediment trap and union located outside the heater jacket. Do not use a restrictive gas
cock.The following gas pipe sizes are recommended for propane gas supply piping, with a
minimum pipe size of 3/4" (1.9 cm).Check for compliance with local codes.
NOTICE: DO NOT use a corrugated flexible gas line to supply the heater. It will not
deliver enough gas (at nominal diameter) to supply heater.
Risk of fire and explosion. Improper installation, adjustment, alteration, service, or
maintenance of the Combination Gas Control Valve can lead to fire or explosion,
causing loss of life, personal injury, or property damage.
These instructions are for the use of qualified service technicians only!
Do not attempt this procedure unless you have been trained and certified in the care
and repair of gas-fired appliances!
Do not attempt this procedure if you are not confident about following instructions!
This appliance is equipped with an unconventional gas control valve that is factory set
with a manifold pressure of –.2” wc.Installation or service must be performed by a
qualified service technician or the gas supplier. If this control valve is replaced, it must
be replaced with an identical control.
NOTICE: Before converting the heater, make the necessary gas connections to the
new gas supply, following the instructions in the ETi®400 Heater Installation and
User’s Guide.Verify the maximum and minimum regulated gas pressures from the gas
supply.These pressures must be within the range listed on the conversion plate.
Maximum Equivalent Pipe Length (ft)
Natural Gas 1000
BTU/FT
3
0.60 Specific Gravity at 0.5 in. WC Pressure Drop
Propane Gas 2500
BTU/FT
3
1.50 Specific Gravity at 0.5 in. WC Pressure Drop
Input 3/4” 1” 1-1/4” 1-1/2”
Model (KBTU)
N P N P N P N P
ETi
400
399.0
*20 20 60 90 220 200 450
™
Table 1: Gas Pipe Sizing - STAGE TWO LOW PRESSURE GAS PIPE SIZING
Table 1: Note (*) A 3/4”
(1.9 cm) gas line can be
used for up to 2 ft (61 cm)
maximum length from the
gas valve in addition to the
sediment trap.
INSTRUCTIONS FOR CHECKINGTHE GAS PRESSURETHROUGHTHE
COMBINATION GAS CONTROLVALVE.

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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1. IMPORTANT! Turn off
the electrical supply to
the heater and turn off
the pump.
2. Remove the side
panels from the heater
to access the Gas
Control Valve. Using a
flat-blade screwdriver,
insert press and turn the
screwdriver to unlock
the panel. See figure 2.
Figure 2.
Front Panel latch lock
Propane Conversion Kit Installation Instructions
3. Close the gas supply SHUT OFF valve
to the heater.
4. Turn the heater Gas Toggle switch to
the off position.
Direct Spark
Igniter cables
Figure 3.
5. Remove the front and side Service Panels from the heater. Note: After
completing the Gas Supply PressureVerification Instructions on
page 12, reinstall both heater Service Panels.
6. Remove the four Direct Spark Igniter cables on both heat exchangers.
See Figure 3.

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Propane Conversion Kit Installation Instructions (Continued)
7. Using T20 TORX Screwdriver remove the two screws from each igniter and
replace the igniters with the new ones provided. Discard the old igniters.
NOTE: DO NOT LOSETHE SCREWS! RE-USE IT ON NEW IGNITERS.
IMPORTANT: ONLY HANDTIGHTTHE SCREWS!!! DO NOT OVER
TORQUE!!! SEE FIGURE 4.
Remove
igniter with
T20 Torx
screwdriver.
IMPORTANT:
ONLY HAND
TIGHT THE
SCREWS ON
THE NEW
IGNITERS!!!
8. Using Channel Locks to loosen the gas train at two gas orifice unions near the
blowers and replace the GAS ORIFICES inside with the new ones provided. See
Figure 5. Discard the old gas orifices. Be sure the gas orifices have o-rings and
are sitting flush inside the union.Tighten the unions using channel locks for a
good seal. See Figure 5.
Using Channel Locks
to loosen the two gas
orice unions and
remove the black pipe
gas train.
Figure 4.
Figure 5.

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Replace the gas orices
inside the both unions
with the new ones. Be
sure the letters “NL” are
facing outward. Tighten
the unions with the
channel locks tool.
TIP: REPLACE THE GAS
ORIFICE AND TIGHTEN
ONE UNION AT THE
TIME FOR EASE OF
INSTALLATION.
Propane Conversion Kit Installation Instructions (Continued)
9. Remove all the tubing from the air orifices and replace the two white AIR ORIFICES
with the new ones provided. Use the 5/16” socket wrench or 5/16” nut driver to
secure in place.Discard the old air orifices. See Figure 7.
Remove
tubing attached
to air orices
and use 5/16”
socket wrench
or nut driver
to remove and
replace the
orices.
Figure 6.
Figure 7.

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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10. BEFORE PROCEEDING DOUBLE CHECKTHE INSTALLATION AGAIN
AND BE SURE THE SPARK IGNITER SCREWS ARE HAND TIGHT, SPARK
CABLES ON IGNITERS ARE SEATED PROPERLY, GAS ORIFICE UNIONS
ARE TIGHT, AND AIR ORIFICES ARE SEATED PROPERLY
11. SWITCH BACK TO THE ON POSITION FOR THE GAS VALVE TOGGLE
SWITCH.
12. TURN ON THE GAS SUPPLY VALVE TO THE HEATER.
13. TURN THE HEATER ON AT THE CONTROL PANEL AND BE SURE IT
OPERATES PROPERLY.
14. Turn on heater. Observe it for smooth ignition and regular combustion without
undue noise or pulsation.
15. Run heater for at least 10 minutes.After at least 10 minutes of continuous
operation, insert a combustion analyser probe into the exhaust and measure
CO2 .The recommended CO2 range for Propane combustion is listed below.
Continue on next page.
Fuel Recommended CO2
(Dry Basis)
Propane 9.6% – 10.2%
Table 3. Flue Gas CO2 Range
Propane Conversion Kit Installation Instructions (Continued)

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Figure 8.
Propane Conversion Kit Installation Instructions (Continued)
16. If the combustion is satisfactory and the exhaust analysis is within the range,
complete the conversion by attaching the conversion plate and label
(Figure 8).
17. IMPORTANT: Using a permanent fine-tip marker, mark on the conversion
label the date of conversion and the name and address of the party making
the conversion. Attach the conversion label on the area reserved for it on
the existing appliance label. Using an alcohol swab, clean the surface
before attaching the label. Peel off the backing strip and apply the label
with uniform pressure over the entire surface. See Figure 9.
Figure 9.

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Replacement Propane Orifice Size Code
Model ETi 400 P/N ID Stamp Diameter in (mm)
476075 NL 0.253 in (6.4)
Table 2.
1. Use a 3/16” hex key to remove the plug from the PRESSURE TAP port on the
outlet side of the Combination Gas Control Valve.
2. Install a 1/8” NPT barbed fitting into the ‘PRESSURE TAP’ port on the outlet
side of the gas valve.Use a flexible tube to connect it to the low side of a
differential pressure gauge or a slope gauge.This gauge will measure low
(outlet) pressure, which requires a high degree of resolution.
3. Turn on the manual gas shutoff valve.
4. Before operating the heater, leak-test the heater and all its gas connections
with soapy water.
WARNING! Risk of fire or explosion. Never test for gas leaks with an
open flame.
5. Turn on electricity to heater and start the pump.
6. Turn on the heater.
NOTICE: If you are using a slope gauge, close the shutoff valve of the
gauge to avoid pulling the liquid out of the gauge when the blower starts.
Gas Supply PressureVerification and Instructions
7. After the burner lights, verify that the supply pressure is within the range 4” to
12” wc. If the supply pressure drops below this range when the burner ignites,
the gas line capacity may be inadequate, and should be increased.
8. With the burner still on, disconnect the plastic hose between the gas valve and
“VENT” tap and the blower mixer inlet.The pressure gauge should then read
.2”±.1” wc. (Since the pressure tap is connected to the low side of the gauge,
the pressure is actually negative.) If the pressure is outside the range listed,
call the factory at 1-800-831-7133. Do not try to adjust the pressure yourself.
After completing the Propane Conversion Kit Installation Instructions (page 2-12) proceed
to steps 1-12 to verify the gas supply pressure as follows:

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Sequence of Operation
An electronic temperature sensing thermistor in the manifold adapter inlet controls the
heater operation.When the inlet water temperature drops below the temperature set
on the operator control panel, the control board supplies power to the combustion air
blowers through a series of safety interlocks.The heater interlocks consist of;
• the two water pressure switches (PS), which senses that the pump is
running,
• the high limit switch (HLS), which opens if the heat exchanger outlet
temperature goes above 135° F (57° C), and
• the two air flow switches (AFS), sense the pressure drop across the
air metering orifices.
• the two thermal fuses (TF) open if the flue gas temperature reaches
187° F (86° C).
• the automatic gas shut-off (AG1, AG2) switches, which open if the
heat exchanger outlet temperature goes above
150° F (66° C).
• the float switch (FS) which opens if the condensate overflows at
the float switch due to blockage in the condensate drain hose or
neutralizer cartridge.
• the stack flue sensors (SF1, SF1), which shut down the heater if the
flue gas temperature reaches 170° F (77° C).
The air flow switches (AFS) sense the pressure differential between both of the
air metering orifices.As soon as there is sufficient air flow, the AFS closes, com-
pleting the circuit to the Fan Control board.The gas ignition control then opens
the gas valve and the fuel mixture is ignited by the Direct Spark Ignition (DSI). On
a call for heat, the blowers are energized for 15 seconds, the gas valve opens si-
multaneously as the direct spark igniters are energized, then ignition occurs.The
heater is equipped with a digital operating control that enables the user to pre-set
the desired pool and spa water temperatures.The control enables the user to
select between pool and spa heating, and features a digital display that indicates
the water temperature.
Specifications
Parts List for Propane Conversion Kit P/N 476072
Description Qty. P/N
Direct Spark Igniters 2 476081
Air Orifice 2 476064
Gas Orifice (NL) 2 476075
O-Ring 2 U9-370
Installation Guide 1 476079
Propane Conversion Label 1 476078
Inlet Pressure:
Min./Max: 4” / 12” WC
Manifold Pressure:
Reference to Blower inlet tap: -0.2”WC
Required Gas Input (BTU/Hr): 399.990 BTU/Hr
Model: ETi®400 Heater

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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Notes

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
15
Notes

ETi 400 Heater Fuel Gas Conversion Kit Installation Guide ETi 400 Heater Fuel Gas Conversion Kit Installation Guide
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1620 HAWKINS AVE., SANFORD, NC 27330 • [phone]
10951 WEST LOS ANGELES AVE., MOORPARK, CA 93021 • [phone]
WWW.PENTAIRPOOL.COM
All Pentair trademarks and logos are owned by Pentair or one of its global affiliates. ETi® is a
registered trademark of Pentair Water Pool and Spa, Inc. and/or its affiliated companies in the
United States and/ or other countries. Unless expressly noted, names and brands of third parties
that may be used in this document are not used to indicate an affiliation or endorsement between
the owners of these names and brands and Pentair Water Pool and Spa, Inc. Those names
and brands may be the trademarks or registered trademarks of those third parties. Because
we are continuously improving our products and services, Pentair reserves the right to change
specifications without prior notice. Pentair is an equal opportunity employer.
© 2017 Pentair Water Pool and Spa, Inc. All rights reserved. This document is subject to change
without notice.
P/N 476079 REV. A 3/2017
*476079*

GUÍA DE INSTALACIÓN
¡IMPORTANTE!
¡ADVERTENCIA! PARA SU SEGURIDAD: ESTE PRODUCTO DEBE SER INSTALADO
Y MANTENIDO POR PERSONAL DE SERVICIO AUTORIZADO
CON CALIFICACIÓN PARA INSTALACIONES DE PISCINAS/SPA
KIT DE CONVERSIÓN DE GAS NATURAL
A GAS PROPANO LÍQUIDO (gpl) DEL
CALENTADOR DE PISCINA ETi®400
N/P 476072

Guía de instalación del kit de conversión de calentador de gas ETi 400 Guía de instalación del kit de conversión de calentador de gas ETi 400
2
N/P 476079, Rev. A 3/2017
Servicio al cliente y soporte técnico
Si tiene alguna pregunta sobre cómo ordenar partes de repuesto de Pentair
Water Pool and Spa y productos para piscinas, llame al:
Teléfono: [phone]
Fax: [phone]
(8 a. m. a 7.30 p. m., hora del Este/Pacífico)
Sitios web: www.pentairpool.com
Índice
ADVERTENCIA IMPORTANTE E INSTRUCCIONES DE SEGURIDAD............... 3-4
Resumen del procedimiento de conversión (GN a propano)........................................5
Conexión de gas ...................................................................................................6
Instrucciones de instalación del kit de conversión a propano.............................7-11
Instrucciones para verificar el suministro de gas..................................................12
Secuencia de funcionamiento...............................................................................13
Especificaciones...................................................................................................13
Lista de partes......................................................................................................13

Guía de instalación del kit de conversión de calentador de gas ETi 400 Guía de instalación del kit de conversión de calentador de gas ETi 400
3
La mayoría de los códigos estatales y locales residenciales regulan la construcción,
instalaciónyoperacióndepiscinasyspaspúblicos,ylaconstruccióndepiscinasyspas
residenciales.Esimportanteacogerseadichoscódigos,muchosdeloscualesregulanenformadirectalainstalación
yelusodeesteproducto.Consultesuscódigosdeconstrucciónydesaludlocalesparaobtenermásinformación.
ADVERTENCIA
PELIGRO
NO INSTALAR NI USAR CORRECTAMENTE ESTE PRODUCTO PUEDE
RESULTAR EN LESIONES FÍSICAS GRAVES O LA MUERTE.
Antes de instalar este producto, lea todos los avisos de advertencia y siga
todas las instrucciones de esta Guía. No respetar las advertencias o no seguir
las instrucciones puede provocar lesiones graves, la muerte o daños a la propiedad.
Llame al [phone] para obtener copias gratis adicionales de estas instrucciones.Consulte
www.pentairpool.com para acceder a más información relacionada con estos productos.
ADVERTENCIA
PELIGRO
AVISO IMPORTANTE - Aviso para el instalador: Esta guía de instalación
(“Guía”) contiene información importante acerca de la instalación, la operación y el
uso seguro de este producto. Esta Guía se debe entregar al propietario y/u operador
de este calentador.
EN CANADÁ: LA CONVERSIÓN SE DEBE REALIZAR CONFORME A LAS EXIGENCIAS
DE LAS AUTORIDADES PROVINCIALES CON JURISDICCIÓN Y CONFORME A LOS
REQUISITOS DEL CÓDIGO DE INSTALACIÓN DE GAS NATURAL Y PROPANO CSA B149.1
LEA Y SIGA TODAS LAS INSTRUCCIONES DE ESTE MANUAL
ADVERTENCIA
LOS INSTALADORES, OPERADORESY PROPIETARIOS DE PISCINAS
DEBEN LEER ESTAS ADVERTENCIASYTODAS LAS INSTRUCCIONES
ANTES DE USAR EL CALENTADOR ETi®400.
ADVERTENCIA IMPORTANTE E INSTRUCCIONES DE SEGURIDAD
No seguir las instrucciones podría desencadenar incendios o
explosiones que podrían ocasionar lesiones o daños a la propiedad
graves. Este kit de conversión debe ser instalado por una agencia de
servicio calificada, conforme a las instrucciones del fabricante y todos
los códigos correspondientes y requisitos de la autoridad competente.
Se deben seguir estas instrucciones a fin de reducir al mínimo el
riesgo de incendio o explosión o para prevenir daños a la propiedad,
lesiones personales o la muerte. La agencia de servicio calificada será
responsable de la adecuada instalación de este kit. La instalación no
se considerará adecuada ni completa hasta que se haya verificado el
funcionamiento del dispositivo convertido según lo especificado en las
instrucciones del fabricante que acompañan el kit.

Guía de instalación del kit de conversión de calentador de gas ETi 400 Guía de instalación del kit de conversión de calentador de gas ETi 400
4
ADVERTENCIA IMPORTANTE E INSTRUCCIONES DE SEGURIDAD
ADVERTENCIA
El uso incorrecto de combustible o una conversión de combustible con fallas
suponen riesgo de incendio o explosión. No intente encender un calentador
configurado para gas natural con gas propano o viceversa. Solo los técnicos
de servicio calificados pueden convertir el calentador de un combustible al
otro. No intente cambiar el orificio para alterar la entrada configurada o el tipo
de gas. Si es necesario hacer la conversión a otro tipo de gas, consulte con su
distribuidor de Pentair.
Podría producirse una avería grave en el calentador que podría resultar mortal.
Cualquier agregado, cambio o conversión necesarios para que el dispositivo
pueda cubrir sus necesidades de aplicación de manera satisfactoria debe estar
a cargo de un distribuidor de Pentair u otra agencia calificada especificada en
las partes aprobadas.
ADVERTENCIA
Riesgo de explosión si se instala una unidad convertida a propano en una
fogata u otros espacio bajo. El propano es más pesado que el aire. No instale un
calentador de gas propano en una fogata u otro lugar donde podría acumularse
gas. Consulte con los funcionarios a cargo de los códigos de edificación locales
para determinar los requisitos de instalación de un calentador en lo referido a
tanques de almacenamiento y equipos de carga de gas propano. En Canadá, la
instalación debe cumplir con los requisitos de la Norma para el almacenamiento
y manipulación de gases de petróleo líquido, CAN/CSA B149.1 (la edición más
actual). En Canadá, la instalación debe cumplir con los requisitos de la Norma
para el almacenamiento y manipulación de gases de petróleo líquido, ANSI/
NFPA 58 (la edición más actual). Consulte los códigos locales y a las autoridades
de protección contra incendios acerca de las restricciones específicas de
instalación. No se deben instalar calentadores alimentados con propano (GPL)
en garajes en Massachussetts, en virtud de lo dispuesto por el Inspector General
de Bomberos de Massachusetts. Para obtener más información, llame a la oficina
del Inspector General de Bomberos.