Jandy HI-E2, HI-E2R Installation And Operational Manual

INSTALLATION AND

OPERATION MANUAL

Jandy Pro Series Hi-E2® and Hi-E2®R

Gas-Fired Pool and Spa Heater

EHE

IF THESE INSTRUCTIONS ARE NOT FOLLOWED EXACTLY,

WARNING

FOR YOUR SAFETY: This product must be installed and serviced by a contractor who is licensed and qualified in pool equipment by the jurisdiction in

which the product will be installed where such state or local requirements exists. In the event no such state or local requirement exists, the installer or

maintainer must be a professional with sufficient experience in pool equipment installation and maintenance so that all of the instructions in this manual

can be followed exactly. Before installing this product, read and follow all warning notices and instructions that accompany this product. Failure to follow

warning notices and instructions may result in property damage, personal injury, or death. Improper installation and/or operation can create carbon

monoxide gas and flue gases which can cause serious injury, property damage, or death. For indoor installations, as an additional measure of safety,

Zodiac Pool Systems, Inc. strongly recommends installation of suitable carbon monoxide detectors in the vicinity of this appliance and in any adjacent

occupied spaces. Improper installation and/or operation will void the warranty.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

• Immediately switch off main gas supply.

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

H0205000_REVL

A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY
DAMAGE, PERSONAL INJURY, OR DEATH.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Table of Contents

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Page 3

Section 1. General Information ....................... 4

1.1 Introduction ......................................................... 4

1.2 Description ......................................................... 4

1.3 Warranty ............................................................. 4

Section 2. Installation Instructions ................. 4

2.1 General Requirements ....................................... 4

2.2 Heater Assembly and Preparation ...................... 5

2.3 Heater Location .................................................. 5

2.4 Installation Clearances ....................................... 5

2.5 Outdoor Installation ............................................ 5

2.6 Outdoor Shelter Installation (Canada) ................ 6

2.7 Indoor Installation ............................................... 6

2.7.1 Preparation of Heater For Indoor

Installation .................................................... 6

2.7.2 Combustion Air Requirements for

One-Pipe Installation .................................... 7

2.7.3 Two-Pipe Installation (Direct Vent) ............... 7

2.8 Condensate Disposal ....................................... 10

2.9 Gas Supply and Piping ......................................11

2.9.1 Special Precautions for LP Gas ................. 12

2.10 Electric Wiring .................................................. 12

2.10.1. Electrical Power .......................................... 12

2.10.2 Bonding ...................................................... 13

2.10.3 Auxiliary Time Clock Wiring ........................ 14

2.10.4 Remote Operation ...................................... 14

2.11 Water Piping ..................................................... 14

2.11.1 Reversal of Water Connections .................. 14

2.11.2 Pool/Spa Piping Systems ........................... 15

2.11.3 Connections at Heater................................ 16

2.11.4 Pressure Relief Valve and

Temperature Relief Valve ........................... 16

2.11.5 Automatic Chlorinators

(Chemical Feeders) .................................... 16

2.12 Start-up and Adjustment ................................... 17

2.12.1 Normal Operation ....................................... 17

2.12.2 Start-up ....................................................... 17

2.12.3 Condensate ................................................ 17

2.12.4 Gas Pressure ............................................. 18

2.12.5 Adjustment of Water Pressure Switch ....... 18

2.12.6 Water Temperature Rise............................. 19

3.4 Water Chemistry ............................................... 21

3.4.1 Pools .......................................................... 21

3.4.2 Spas ........................................................... 21

3.5 Spa/Hot Tub Safety Rules ................................ 22

3.6 Swimming Pool Energy Savings Tips ............... 22

3.7 Seasonal Care .................................................. 23

3.7.1 Spring and Fall Operation .......................... 23

3.7.2 Winterizing .................................................. 23

3.8 Periodic Inspection ........................................... 23

3.8.1 Owner Inspection ....................................... 23

3.8.2 Professional Inspection .............................. 24

Section 4. Maintenance and Service ............. 24

4.1 General ............................................................. 25

4.2 Induced-Draft Combustion System .................. 25

4.3 Heater Components and Their Operation ........ 26

4.4 Combustion Air Filter ........................................ 26

4.5 Electrical Trouble Shooting ............................... 27

4.5.1 115V Electrical Power Supply .................... 28

4.5.2 Control Circuit Trouble Shooting ................ 28

4.6 Venturi Combustion Flow System .................... 30

4.6.1 Pressure Measurement Ports..................... 30

4.6.2 Venturi System Checkout ........................... 30

4.6.3 Air Flow Investigation ................................. 32

4.6.4 FuelGasTypeandGasOriceSize .......... 33

4.6.5 High Elevation Operation ........................... 33

4.7 Combustion Condensate .................................. 33

4.8 Major Component Service ................................ 34

Section 5. Capacities and Dimensions ......... 34

5.1 General Information .......................................... 34

Section 6. Replacement Parts ....................... 35

6.1 Ordering Information ........................................ 35

6.2 Parts List .......................................................... 35

6.3 Exploded View .................................................. 37

Section 3. Operating Instructions ................. 19

3.1 Start-Up Procedure .......................................... 20

3.2 Temperature Controls ....................................... 20

3.3 Lighting and Shutdown ..................................... 21

3.3.1 Lighting the Heater ..................................... 21

3.3.2 Shutdown ................................................... 21

Page 4

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Section 1. General Information

1.1 Introduction

This manual contains information for the proper
installation and operation of the Hi-E

EHE pool/spa heater. Certain sections are specic to

United States or Canadian installations, and are labeled
United States or Canada. Procedures in this manual must
be followed exactly. To obtain a copy of this manual
contact Zodiac Pool Systems, Inc. ("Zodiac
address information. See back cover.

1.2 Description

The Hi-E2 Low NOx heater is a very efcient gas-red
pool and spa heater. Its combustion system includes a

heat exchanger which extracts 95% of the energy in the
gas fuel. It has no standing pilot burner. It exceeds the
requirements of energy conservation regulations such as
those in California, Hawaii, New York, Oregon and other

states which require that a pool heater have intermittent

ignition.

The heater is designed to operate in conventional
swimming pool and spa equipment arrangements. It
requires 115V 60 Hz electrical power. It has the versatile

dual-thermostat control system for pool/spa combinations.

The Hi-E2 is certied by CSA International to comply with
latest editions of applicable standards. In the United States,

the applicable standard is ANSI Standard Z21.56 for gas­red pool heaters. In Canada, it is Standard CSA 4.7.

The Hi-E

to heat fresh water swimming pools and spas, and with

proper installation and care, it will provide years of
reliable service. Do not use it to maintain pool or spa

water temperature below 70°F. Do not use it as a heating
boiler or general service water heater or to heat true salt
water systems where salinity is in the 35,000 ppm range.

For special applications, consult your Jandy Pro Series
dealer.

2 Low NOx heater has been designed specically

2 and Hi-E2R Model

®

"). For

WARNING

Improper installation or maintenance can cause nausea
or asphyxiation from carbon monoxide in flue gases
which could result in severe injury, or death. For indoor
installations, as an additional measure of safety, Zodiac
Pool Systems, Inc. strongly recommends installation of
suitable Carbon Monoxide detectors in the vicinity of this
appliance and in any adjacent occupied spaces.

Section 2. Installation Instructions

2.1 General Requirements

All gas-red products require correct installation to assure

safe and satisfactory operation. The requirements for pool

heaters include the following:

1. Appropriate site location and clearances.

2. Sufcient supply of clean air for combustion and

ventilation.

3. Proper venting of products of combustion.

4. Properly sized gas pipe.

5. Properly sized gas meter.

6. Adequate water ow.

7. Provision for disposal of combustion condensate

water.

In the United States, installation must be in accordance
with local codes and the most recent edition of the

National Fuel Gas Code, ANSI Z223.1/NFPA-54. The
Code can be obtained from:

National Fire Protection Association

1 Batterymarch Park

Quincy, MA 02169
www.nfpa.org

In Canada, install the heater in accordance with local
codes and the most recent edition of the Natural Gas and

Propane Installation Code, CAN/CSA B149.1.

1.3 Warranty

The Hi-E2 is sold with a limited factory warranty. A copy
of the warranty is included in a plastic bag inside the
heater. The warranty does not cover damage caused by
improper installation, operation, or eld modication; or
damage to the heat exchanger caused by corrosive water.
See Section 3.4 for guidelines on pool water chemistry.

Special Precautions

Liqueed petroleum (LP) gas is heavier than air.
Therefore, a pool heater using LP gas is subject to special
installation rules. Consult local codes and re protection
authorities about specic installation restrictions.

Fuel gas and its combustion products are known to cause

cancer or harm the reproductive process. Follow these
installation instructions and applicable codes exactly to
avoid this.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

WARNING

To Reduce the Risk of Fire, install pool equipment in an
area where leaves or other debris will not collect on or
around the equipment. Keep surrounding area clear of
all debris such as paper, leaves, pine-needles and other
combustible materials.

ENGLISH

Page 5

When pool equipment is located below the pool surface,

a leak from any component can cause large scale water
loss or ooding. Zodiac Pool Systems, Inc. cannot be
responsible for such water loss or ooding or resulting
damage. Location of the heater below or above the pool

deck affects operation of its water pressure switch. See

sections on water piping and heater start-up for more

information about this.

2.2 Heater Assembly and Preparation

The Hi-E2 can be installed in a variety of ways, some of them

requiring preparation or assembly in the eld. In all cases,
condensate tubing and ttings, which are provided with the

heater, must be connected and routed. Water connections are

provided on the right side of the heater but can be changed to

the left side by reversal of the water headers.

It is best to handle these preparations before the heater

is in its nal location. Instructions are provided in

subsequent sections of this document.

Installation at High Elevation

The Hi-E

2 has a venturi-type combustion system which

does not require modication for operation at high
elevation. In this type of system, air and fuel gas density
changes are automatically compensated for, assuring
proper air/fuel mixture. Heating capacity is reduced about
3 percent per 1000 feet (305 meters) above sea level. In
general, efciency at high elevation is equal to or better

than at sea level.

2.3 Heater Location

The Hi-E2 may be installed indoors or outdoors as outlined
in later sections. When installed indoors, combustion
air will often be piped to the heater and this requirement
may affect the choice of location, see later section on air
for combustion and ventilation. Both indoor and outdoor
installations require provision of means for disposal of
combustion condensate per section 2.8.

Install the heater at least 5 feet (1.52 meters) from the

inside wall of the pool or spa unless the heater is separated

from the pool or spa by a ve-foot (1.52 meter) high solid

fence, wall or other permanent barrier.

Equipment must be installed on a rm, solid, non­absorbent level surface; and per the requirements of
local codes and Authority Having Jurisdiction (AHJ).
Equipment can weigh up to 300 lbs. Use suitably rated
mounting surface materials to avoid risk of settlement,

and never use sand to level the equipment as the sand

will wash away. Check local building codes for additional

requirements.

Locate the heater in an area where water leakage will
not result in damage to the area around the appliance or

to a structure. If forced to locate the heater where water

leakage may cause damage, provide a suitable pan with
drain under the heater. This pan must not restrict air ow

or heater functions.

In selection of a location, disposal of combustion
condensate must also be considered. The heater can

produce three gallons of condensate water per hour
under some operating conditions. Means to drain this

condensate must be available or special provisions, such
as a condensate pump must be provided. See later section
on condensate disposal.

2.4 Installation Clearances

Clearances between the heater and combustible material
must be per Table 1.

Table 1. Installation Clearance Requirements.

Surface/Component Minimum Clearance

Inches (mm)

Rear & Blank Side 2 (55)

Piping Side 12 (305)

Front 18 (455)*

Top - Indoors 6 (150)

Top - Outdoors Open (See Note)

Flooring Combustible

Vent 0

* For Canada 24 inches (610 mm) clearance

NOTE See Section 2.5 for outdoor installation requirements.

These clearances are the minimum acceptable. Whenever

possible, larger clearances should be provided to assure
adequate room for service operations. Note that gas piping
must be provided through the left side of the unit and

that the combustion air duct, when provided, also enters

through the left side. See later section on combustion air,
and also the section on water piping.

Do not install the heater on carpeting or similar material.

2.5 Outdoor Installation

CAUTION

When pool equipment is located below the pool
surface, a leak from any component can cause large
scale water loss or flooding. Zodiac Pool Systems, Inc.
cannot be responsible for such water loss or flooding
or resulting damage.

Locate the heater in an open, unroofed area and maintain
the clearances shown in Table 1. Do not locate the heater

below or adjacent to any doors, windows, louvers or
grates, etc., which connect in any way with an inhabited
area of a building, even through another building such as

Page 6

Figure 1. Outdoor heater location.

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

1/4” X 2-1/4”
GALVANIZED OR PLATED
CONCRETE SCREWS

Figure 2. Anchor heater to equipment pad.

each of the holes and fasten the heater to the equipment

pad, see Figure 2. Do not over torque the screws.

a garage or utility room, see Figure 1. Do not locate the

heater below an outdoor deck, unless treated as an indoor

installation with adequate clearances and proper venting

to a location away from the deck.

If the heater is installed close to a structure, protect it from

rain water runoff by means of gutters, roof water diverters

or similar measures. Do not locate the heater close to

irrigation sprinklers. Water from sprinklers may damage

controls and electronic components.

Because the Hi-E

2 is very efcient, combustion system

exhaust gases are moist. Do not locate the heater such
that this exhaust will impinge on structures or vegetation
which may be damaged by combustion condensate.

WARNING

United States

Do not install the heater with the top of the vent
assembly within 4 feet (1.22 m) horizontally, 4 feet
(1.22 m) below or less than 1 ft (300 mm) above of any
opening into a building.

Canada

Do not install the heater with the top of the vent
assembly within 10 feet (3.05 m) of any opening into a
building.

In Florida it is required that the heater be securely

fastened to the equipment pad. Use a size 1/4” x 2-1/4”
long galvanized or plated concrete screws and washers
at each of the four (4) tabs located at the base of the
heater. Mounting the appliance in this manner meets the
applicable requirements of the Florida Building Code.

Mounting screws are not provided with this heater. After
placing the heater on the equipment pad, drill a hole in
the concrete at each of the four (4) tabs on the feet of the
heater. (The correct size drill bit is usually provided with

the concrete screws when purchased). Place a screw in

2.6 Outdoor Shelter Installation (Canada)

An outdoor shelter is an unoccupied enclosure which

does not communicate directly with occupied areas.
The Hi-E

2 may be installed in such a shelter only when

the installation is in accordance with local codes and
the most recent edition of the Natural Gas and Propane

Installation Code (CAN/CSA B-149.1). These codes and

®

standards and Zodiac

require that the heater be properly
vented as outlined in this manual. Other requirements also
apply, such as provision of ample uncontaminated air for
combustion and ventilation.

2.7 Indoor Installation

The Hi-E2 can be located indoors when provided with

“one-pipe” or “two-pipe” systems for combustion air
and combustion product venting. A one-pipe installation

has only a vent pipe, and air for combustion must be

provided to the room the heater is located in. A two-pipe
system (sometimes referred to as “direct vent” or “sealed
combustion”) has a vent pipe plus a pipe bringing air

directly to the heater's combustion system.

Section 2.7.2 species requirements for provision of

combustion and ventilation air for one-pipe installations.

Section 2.7.3 covers two-pipe installation.

An important consideration in selecting one (1) or two

(2) pipe installation is the quality of the combustion
air. Indoor air is sometimes contaminated with various
household or pool sanitation chemicals which can cause
corrosion in the heater combustion system. Unless the
indoor air is known to be free of these materials, two (2)

pipe installation is strongly recommended.

2.7.1 Preparation of Heater For Indoor Installation

If the Hi-E2 is to be installed indoors, its exhaust discharge
grille must be converted to an exhaust pipe conguration.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

ENGLISH

Page 7

The necessary vent collar, gasket and screws are shipped
packaged within the heater. The conversion can be done
quite simply as follows. See Figures 3 and 4:

1. Remove the vent exhaust grille by removing the
four (4) screws which retain it. The grille, its
gasket, and the screws may be discarded.

2. Place the vent collar gasket on the top of the
heater aligning its center hole and screw holes

with those in the top of the heater.

3. Place the vent collar over the gasket and fasten

it in place with the screws and lockwashers
provided. Be sure that all components are

properly aligned. Screws must be tightened
enough to assure a sealed joint without deforming

the vent collar.

2.7.2 Combustion Air Requirements for One-Pipe
Installation

One-pipe indoor installations must have specic

provisions for supply of combustion and ventilation air
to the room in which the heater is located. Two (2) air

openings must be provided — one (1) near the ceiling

and one (1) near the oor. When air is provided directly
through an outside wall, each opening must have at least
1 square inch (6.5 square cm) of area per 4000 BTU/h of
heater input. When air is provided indirectly through ducts
from the outside, the openings and passages must have
at least 1 square inch of area per 2000 BTU/h of heater

input. These requirements are interpreted in Table 2.

Table 2. Required Net Free Area of Openings for

Combustion and Ventilation Air.

Required net free area in square

inches (sq. cm) for each of 2 openings -

Model

350 88 (570) 175 (1130)

one (1) near ceiling and one (1) near floor

Directly

Through an

Exterior Wall

Through Horizontal

Ducts

Note that the numbers indicate the net free area —
after allowing for the blockage of grille bars, etc. See

applicable local codes and the previously-cited national

codes for details. Even though codes may permit it,

®

Zodiac

does not recommend installations with only

“inltration” as the means for provision of combustion air.

Figure 3. Removal of outdoor exhaust grille.

See Section 2.7.3.3 for vent pipe sizing.

WARNING

Do not store any chemicals, cleaners, or other corrosive
material near combustion air openings or in the
room. Avoid locating appliance vents in the vicinity of
combustion air openings. Failure to prevent corrosive
materials from mixing with combustion air can result in
reduced heater life and unsafe heater operation.

2.7.3 Two-Pipe Installation (Direct Vent)

This section species installation requirements
for combustion air and vent piping for “two pipe”
installations. A two-pipe system provides isolation of the

2 combustion system from the space in which the

Hi-E
heater is installed. It has not only a vent pipe, but also
a combustion air pipe to provide air directly from the
outdoors. Research studies have shown that contaminants
which may corrode internal heater parts are typically at
much lower levels in outdoor air than in air from indoors.

2.7.3.1 Connection of Combustion Air Pipe

A collar for combustion air pipe connection is provided in
the heater at the inlet of the lter box. As shown in Figure
5, the combustion air pipe is routed through the side of the
heater to the lter box connection. Remove the cover plate

from the left side panel to provide access for the air pipe.

Figure 4.

Vent collar assembly for indoor installation.

Page 8

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

4'

Figure 5.

Connection of combustion air pipe to heater.

2.7.3.2 Piping Materials

WARNING

To avoid risk of property damage, serious injury, or
death, use ONLY piping materials from the list below
which are certified or listed for the application per
the requirements of UL 1738 and/or ULC S636, by a
Nationally Recognized Testing Laboratory (NRTL).

Vent piping must be corrosion resistant because

combustion condensate is usually present on its internal
surfaces. The materials listed in Table 3. are acceptable

for vent piping:

Total Length: 42'
Total Elbows: 5

8'

18'

EHE350

10'

2'

Figure 6. “One-pipe” installation.

2.7.3.3 Size and Length of Combustion
Air and Vent Piping

Piping for combustion air and venting must be large
enough to avoid restriction of the heater combustion
system. Pipe diameter, number of elbows and length of
pipe determine how much it restricts ow to or from the
heater. Table 3 species the allowable length of piping for

various situations.

The following example illustrates use of table 3:

EXAMPLE: A model 350 heater is to be installed in a

one-pipe system with schedule 40 PVC or CPVC, see
Figure 6. The vent pipe run is 42 feet long and has

Table 3. Maximum Combined Length of Combustion Air and Vent Piping in Feet.

APPROVED VENTING MATERIALS*

PVC

®

29-4C

Pipe Size

Model

350

350

NOTES

Inches

4 (10.2)

5 (12.7)

6 (15.2)

4 (10.2)

5 (12.7)

6 (15.2)

1. Vent must be Class 100, 125 or Schedule 40 PVC or CPVC, Schedule 80 PVC or CPVC. Combustion air pipe may be PVC, CPVC or suitable metal pipe.

2. Heavy condensation occurs in long vent pipes. Provide a separate entrapped condensate drain from vent piping near heater when 5” vent pipe exceeds 100 feet or 6” vent pipe

*

• For saltwater version heaters (EHE350NS and EHE350PS) a 180°F vent limit switch is required and PVC venting is not allowed.

• Allmetalsectionsoftheventingsystemusedmustbestainlesssteelandlisted/certied/classiedbyaNationallyRecognizedTestingLaboratory(NRTL)as
being compliant with the applicable requirements of the Underwriters Laboratories (UL) standard for safety for “Venting Systems for Gas-Burning Appliances,
Categories II, III, and IV” (ANSI/UL 1738), and properly installed in accordance with any manufacturers’ instructions and in compliance with applicable local and
national installation codes.

• Thenon-metallicsectionsoftheventingsysteminstalledmustalsobelisted/certied/classiedbyaNationallyRecognizedTestingLaboratory(NRTL)as
being compliant with the applicable requirements of the applicable requirements of the Underwriters Laboratories (UL) standard for safety for “Venting Systems

forGas-BurningAppliances,CategoriesII,III,andIV”(ANSI/UL1738)Inaddition,non-metallicventingsystemsmayalsobelisted/classiedbyaNRTLas

being in compliance with the requirements of the UL standard for “Type BH Gas Venting Systems” (ULC S-636). When installed properly in accordance with any
manufacturers’ instructions and in compliance with applicable local and national installation codes.

Class 100, Class 125, Schedule 40 or Schedule 80

CPVC Schedule 40, Schedule 80

Stainlesssteelventingmaterialslistedforventingofcondensinggas-redappliances.

Number of Elbows

(cm)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Total Length of Pipe Schedule 40 PVC, Schedule 40 CPVC & 29-4C®- Feet (m)

61

50

39

(18.6)

225

(68.6)

573

(174.7)

(15.2)

211

(64.3)

556

(169.5)

27 (8.2) 16 (4.8) NA NA NA NA NA NA NA NA NA NA NA

(11.9)

184

170

157

143

465

130

(39.6)

446

(135.9)

(35.4)

197

(60)

538

(164)

(56)

521

(158.9)

(51.8)

503

(153.3)

(47.8)

484

(147.5)

(43.5)

(141.7)

Total Length of Pipe Schedule 80 PVC & Schedule 80 CPVC - Feet (m)

36

48

(14.6)

173

(52.7)

438

(134)

exceeds 50 feet.

(11.0)

161

(49.1)

426

(130)

24

(7.3)

(45.4)

(126)

NA NA NA NA NA NA NA NA NA NA NA NA NA

149

137

125

113

414

378

(115)

101

(30.8)

366

(112)

(41.8)

402

(123)

(38.1)

(34.4)

390

(119)

89

(27.1)

354

(108)

116

116

(35.4)

426

(130)

(130)

NA NA NA NA NA NA NA NA

342

(104)

(101)

NA NA NA NA NA NA

426

383

360

336

330

(116.7)

318

(96.9)

(110)

(102.4)

306

(93.3)

(89.6)

294

310

(94.5)

282

(86.0)

283

(86.3)

270

(82.3)

255

(77.7)

258

(78.6)

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

PVC Adapter
when required

4" PVC Pipe

ENGLISH

Special insect screens installed

(see Figure 10)

Combustion

Air Pipe

7" min.

maximum snow level

Vent Exhaust

Pipe

18" min.
60" max

12" min.to

Page 9

6" min.

Grade level
or normal
snow

Clamping Connector
with Neoprene,
Nitrile or EPDM
Sleeve
(R0444900)

Hi-E2 Vent Collar

Figure 7. Indoor vent connection, Hi-E2 pool heater.

ve (5) elbows. Per Table 3, Only 16 feet of 4" vent

pipe would be allowable which would not allow for

completion of the run. Therefore the pipe size needs to
be increased. 140 feet of 5” piping would be sufcient

to complete the run.

2.7.3.4 Combustion Air and Vent Pipe
Installation

The Hi-E2 must be vented to the outdoors. Refer to Figure 7.
It must not be vented in common with any other appliance,

even if that appliance is of the condensing type. Common
venting can result in severe corrosion of the Hi-E

2 or of the

other appliances or their venting, or escape of combustion
product gases through such appliances or vents. Do not vent

the Hi-E

2 to a replace chimney or building chase.

Combustion air ducting, when provided, must not be

shared with any other appliance or with another Hi-E

2.

Doing so may result in ow of air through the other

appliances instead of directly from the outdoors.

The combustion air intake and vent outlet must be located

exterior to the building and in the same pressure zone - i.e.
both through the roof or both through a side wall. The vent

terminal must be located in accordance with local codes, as

applicable, and in accordance with the following:

1. Locate the vent terminal so that it will not be

damaged by pedestrians and other trafc, and so
that the discharge is not offensive. The National
Fuel Gas Code requires a through-wall vent
terminal be at least 7 feet (2.13 m) above grade if

Figure 8. Vent and combustion air terminals at

exterior wall.

Vent

Exhaust

Pipe

A

Plumbing vent
roof boot

Elbow

Combustion

Air Pipe

Insect Screens

Installed

(See Fig. 10)

18" min.
60" max

A

A=Maximum snow accumulation level plus 12"

Figure 9. Vent and combustion air terminals at roof.

located at a public walkway.

2. Locate the vent terminal so the vent exhaust does

not settle on building surfaces and other nearby
objects. Vent products may corrode such surfaces
or objects.

3.

Locate the vent terminal at a sufcient horizontal
distance from any gas or electric metering,
regulating or relief equipment. In the United States,
this distance must be at least 4 feet (1.22 m). In
Canada, it must be at least 10 feet (3.05 m).

4. Locate the vent terminal at a sufcient horizontal
distance from any building opening. Take special

care to assure that combustion products do

not enter a building through windows, doors,

ventilation inlets, etc. In the United States, this

distance must be at least 4 feet (1.21 m). In
Canada, it must be at least 10 feet (3.04 m).

Page 10

Combustion

Air Pipe

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

®

for such use. Joints in 29-4C

stainless steel pipe must

be sealed in accordance with its listing. Connection of

Vent

Exhaust

Pipe

combustion air and vent piping to the heater should be
serviceable — i.e. removable for heater service.

2.7.3.5 Room Ventilation

Elbow

Figure 10. Installation of insect screens.

Install special
insect screen
at end of pipe
inside coupling
or elbow. Cut
to size as nec­essary.

As shown in Figures 8 and 9, the combustion air intake
and the vent outlet must be installed no closer together
than 18" (45.7cm) and no farther apart than 60" (1.5m).
The combustion air inlet opening must face downward

to prevent entry of rain or snow. The vent outlet must

discharge away from the combustion air inlet - normally
in a horizontal direction when on a wall and vertically

upward when on a roof. Both should terminate at least

12" (30.5cm) above the snow accumulation level. In
locations with freezing climate, extension of the vent pipe
outside of the building should be minimized. The insect

screens provided with the heater must be installed at the

combustion air and vent pipe openings as shown in Figure

10. Insect screens are sized to t the inside of a 5" PVC
pipe tting. Trim them as necessary for smaller pipe sizes.

Connect the vent pipe to the heater vent collar with an air-

tight corrosion-resistant clamp. The connection must not
allow leakage of combustion products into the space but
should be removable for service. See Figure 7.

The room a Hi-E

2 is installed in must be provided with

adequate ventilation. Like other gas-red appliances, the

2 releases heat to its environment, and a room with no

Hi-E
ventilation may become too warm.

In one-pipe installations, the normal (code-required)
provisions for combustion air also assure reasonable
ventilation of the room. If a two-pipe system is installed,
ventilation must be provided by other means, such as

through grilles or openings or with a small fan.

2.7.3.6 Inspection and Replacement of
Existing Vent System with New
Components

If the Hi-E

2 is being installed to replace an existing pool

heater, it is recommended that a new appropriate venting

system be installed with the new heater. However, if

an existing venting system must be used, be sure to
carefully inspect the venting system to ensure that it is
in good condition and continues to be appropriate for the

2 heater. Replace any parts that are not in good and

Hi-E

serviceable condition with new parts before completing

the pool heater installation.

2.8 Condensate Disposal

In a high-efciency combustion process, combustion
product gases are cooled so much that liquid water is
condensed. Flow of this “condensate” can be quite high.
When pool water is very cold, as much as 2 or 3 gallons

Connect the combustion air pipe to collar of the air lter

box. For this combustion air pipe only, sheet metal pipe is
most convenient and can be screwed directly to the collar.

Seal the joint with silicone sealer or similar mastic material.

Install vent piping with a continuous rise of at least 1/4"
per foot (20 mm per meter) away from the heater. This will
assure that any condensate forming in the vent pipe will
ow back to the heater where it can be disposed of properly.

Support vent piping with suitable hangers so its weight
does not bear on the heater or building penetration and
so that piping joints are not strained. Support horizontal
runs at intervals no greater than 6 feet (1.82 meters), and
closer if necessary to avoid sagging. Sagging can trap

condensate water and block the vent.

Both combustion air and vent piping joints must be sealed.
Metal combustion air pipe joints should be fastened with

screws and sealed with permanent sealer or tape. Plastic

vent pipe joints must be made with solvent cement listed

Vent

Drain

To

Disposal

Collector

Drain

Blower

Drain

Trap/

Neutralizer

Figure 11. Condensate drainage components.

®

Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Jandy

ENGLISH

Page 11

of condensate can be produced in an hour. Condensate is

mildly acidic. Before treatment, its “pH” is typically in the

3.5 to 6.0 range.

Handling and disposal of condensate is not complicated,

but it must be done correctly to prevent problems or

complaints. A trap/neutralizer assembly is provided with

the heater to simplify installation. This assembly is easily

installed in the base of the heater. Figure 11 illustrates its
installation and the routing of drain tubes.

To install the condensate assembly, fi rst install the

short length of 5/8" I.D. tubing (Collector Drain) on

the barbed fi tting on the bottom of the condensate

collector. Then drop the condensate tray into the opening
in the base pan of the heater, bending the 5/8" tubing as
necessary to get the tube into the tray. Readjust the 5/8"
tubing so that its lower end is 1/4" - 3/8" above the bottom
of the tray. The tray can be positioned with the outlet  tting
to the right, as shown in Figure 11, or with the  tting to the
left, depending on the direction required for condensate
disposal. Connect the piece of 1/2" I.D. tubing to this
outlet  tting and route it out of the heater through the hole

in the side of the base panel. This tube carries condensate
to the drain. If this disposal tube is routed to the left,

remove the plug button from the hole on the left side of the
base panel and push it into the hole on the right side.

Connect the remaining short piece of 3/8" I.D. tubing to
the barbed tee  tting in the tubing immediately in front of
the blower. Position this tubing so that its bottom end is
1/4"-3/8" above the bottom of the condensate tray. This
tube provides drainage for the vent duct and blower.

A package of limestone gravel neutralizer is provided with
the condensate assembly. Remove the neutralizer from the
packing and spread evenly throughout the tray and around

the properly placed tubes. Be sure that a limestone pebble

does not plug any of the tubes.

IMPORTANT After placing the limestone neutralizer in

the tray add water until the water level is at the same
height as the overflow, see figure 12. Place the cover
on the tray when this is done.

It is important that there be no sagging sections of tubing
to trap water. Drainage to the trap and out of the trap

to the drain must be assured by continuous downward

routing of these tubes. It may be necessary to elevate
the heater to provide downward routing. The outlet of
the disposal tube must be open to the air. PVC pipe is
recommended for long drain tubes.

Condensate From

Vent/Blower Drains

Condensate

From

Collector

Drain

Water Level

Pushed Down

Water Level

Pulled Up

2"-3"

(50-75 mm)

Trap

Slightly

Overow

To

Disposal

1/4" - 3/8"
(6-10 mm)

Figure 12. Condensate drain and trap.

12 illustrates the water seal. Note that water is “pulled”

up toward the condensate collector pan and is pushed

down slightly by the vent/blower drain. If there is no water
seal, air rushes into the collector drain, preventing normal
drainage of condensate water, until vent drainage provides
the seal. See Section 2.12, Start-Up and Adjustment.

The installer must be sure to take whatever measures

are necessary to prevent property damage by condensate
over ow. If the heater location is such that this water
can directly or indirectly damage a building, furnishings
or other property, an over ow pan or other appropriate

preventative measure should be provided.

2.9 Gas Supply and Piping

Before installing gas piping, check the rating plate on the

heater to be sure that the heater is for use with the correct

(available) gas. Make sure that gas supply pressure is
adequate per the requirements in Table 4.

If a gravity drain is not available, a condensate pump
must be provided in the  eld. Suitable condensate pumps
are available commercially at air conditioning equipment

distributors.

Incorrect installation of the condensate assembly or

tubing can result in over ow or waterlogging of the vent.

In normal operation, water accumulates in the tray at the

level of the outlet  tting, and this provides a “water seal”
which accommodates combustion system pressures. Figure

PIPE

(

NIPPLE

SEDIMENT TRAP

3 in

(

Figure 13. Manual Shut-off Valve and Sediment Trap.

Page 12

Table 4. Gas Supply Pressure Requirements.

Supply Pressure Minimum Maximum

Natural Gas 5 inches WC

LP Gas 11 inches WC

ENGLISH

(125 mm WC)

(280 mm WC)

10.5 inches WC
(265 mm WC)

14 inches WC
(350 mm WC)

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Gas piping must be large enough to provide the required
gas ow rate without excessive pressure drop. Table 5
species pipe sizes which will limit pressure drop to 0.5
inches WC (125 Pa), based on the National Fuel Gas
Code, ANSI Z223.1/NFPA-54.

Do not use exible appliance connectors on any gas
connections unless the connector is CSA approved for

outdoor installation and is marked with the BTUH capacity

(which must be equal to or greater than the heater rated
input) and the type of gas (Natural or LP). Also, any
exible connectors, such as CSST buried underground
must be certied for underground installation and meet all
applicable codes. Please note, use of exible connector still
requires the installation of a sediment trap per NFPA 54.

Table 5. Required Gas Pipe Size.

Natural Gas LP Gas

Model

350 1-1/4" 1-1/4" 1-1/2" 1" 1-1/4" 1-1/4"

0-50'

(0-15 m)

50-100'

(15-30 m)

100-200'

(30-60 m)

0-80'

(0-15 m)

50-100'

(15-30 m)

100-200'

(30-60 m)

Support gas piping properly so its weight does not bear on
the heater. Install a drip leg, a non-restrictive shutoff valve
and a union on the gas supply line outside of the heater.
See Figure 13.

Before operating the heater, test the gas supply system,
including all connections, for leaks using a soap solution.
Do not use a ame or any ignition source for leak
detection. Disconnect the heater and its individual gas
shutoff valve during pressure testing if the test pressure is
higher than 1/2 psig (3.34 kPa). If the pressure is 1/2 psig
(3.45 kPa) or lower, close the manual valve on the heater
gas control during testing.

When the heater is started, check the supply pressure

to verify that it is adequate during heater operation.
Undersize piping, a restrictive tting or an undersize gas
meter can cause low operating pressure.

High Elevation

To assure good combustion and general operation, gas
appliances may require manual de-rating when installed
at high elevation. This is not necessary with the Hi-E

2

because it has a special venturi-type combustion system

which self-compensates for changes in barometric
pressure. Air ow through the venturi pulls the correct
ow of gas into the burner regardless of air density.
Good quality combustion and high efciency are assured
without special adjustment or changes to the heater.

ATTACH GROUND-

ING WIRE TO

GREEN GROUND-

ING SCREW

(115 VAC ONLY)

Figure 14. Field wiring connections.

2.9.1 Special Precautions for LP Gas

LP Gas is heavier than air and can therefore more readily

collect or “pool” in enclosed areas if provision for proper

ventilation is not made. Installation of pool heaters in
enclosed areas such as pits is not recommended. However,
if such an installation is required be sure to pay special

attention to proper ventilation requirements for LP gas.
Locate heaters a safe distance from LP gas cylinders and
lling equipment. Consult the National Fuel Gas Code
(NFPA 54 / ANSI Z223.1, latest edition), the Natural
Gas and Propane Installation Code in Canada (CAN/
CSA B149.1, latest edition), and any other local codes
and re protection authorities about specic installation

restrictions in your area.

2.10 Electric Wiring

WARNING

ELECTRICAL SHOCK HAZARD. This heater contains

wiring that carries high voltage. Contact with these
wires may result in severe injury or death.

CAUTION

Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.

2.10.1. Electrical Power

Electrical wiring must be in accordance with the latest
edition of the National Electrical Code® (NEC®), ANSI/
National Fire Protection Association® (NFPA) 70, unless
local code requirements indicate otherwise; and in Canada
with latest edition of CSA C22.1 Canadian Electrical

Code.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

H0205500F

ENGLISH

Page 13

SPA

Cuve Thermal

PV

24V

MV

Y

BURNER LIMIT

Limiteur du brûleur

BR

(SINGLE USE)

(Uniservice)

OFF

Arrét

POOL

Piscine

PSW

REMOTE CONNECTOR

Connecteur à distance

BK

PRESSURE SWITCH

(WATER)

Manostat (eau)

FIREMAN

Y/BK

GAS VALVE

Soupage de gaz

SWITCH

CONNECTION

Interrupteur

pompier

VENTURI. PRES. SWITCH

Interrupteur à pression

différentielle

VENT LIMIT

Limiteur de débit

BR

(MANUAL RESET)

(Remise à zéro)

TRTH

ELECTRONIC TEMP CONTROL

Régulation électronique de
température

WATER TEMP

SENSOR

Capteur de

température de l’eau

W

LIMIT

Limiteur

W

LIMIT

Limiteur

Hi-E2

W

Y

IGNITER

Allumeur

Y/BK

TRANSFORMER

Transformateur

R

Y

Y

W

BK

IGN240

W

IGN120

W

W

IGN/FS

IND

P

TH

VAL

BR

GND

Y

L1

L2

BK

W-R

W-BK

R

W

F1

F2

24V

FC

IGNITION

CONTROL

Commande

d’allumage

BK

BK

W

GY

BK

R

ELECTRICAL

FUSE

Fusible

R

Y/BK

IF ORIGINAL WIRE SUPPLIED WITH HEATER MUST BE REPLACED, APPLIANCE WIRING

Y

MATERIAL RATED FOR 105°C MUST BE USED.

Si le fil d’origine fourni avec le chauffee-eau doit être remplacé, utiliser un fil pour appareils
électriques à tolérance nominale de 105°C.

DIGITAL IGNITION CONTROL

L1

115V

G

60Hz

N

W

COMB.

FAN

Ventilateur

à

combustion

BK

BK-

Black

(Noir)

W-

White

(Blanc)

BR-

Brown

(Brun)

R-

Red

(Rouge)

Y-

Yellow

(Jaune)

G-

Green

(Vert)

P-

Purple

(Mauve)

GY- Gray (Gris)

FACTORY WIRED 24V

Cáblè en usine - 24V

FACTORY WIRED 115V

Cáblè en usine - 115V

FIELD WIRED 115V

Cáblè sur le terrain - 115V

Figure 15. Wiring diagram, Hi-E2 pool heater.

The Hi-E2 requires electrical power from a 115V, 60 Hz
source. Do not connect this heater to a 230VAC power
source. Wiring connections must be made exactly as
shown in the wiring diagram, see Figure 15. Grounding
must be provided as required by the prevailing electrical

code.

Connect wiring inside the junction box, which is on the
right side of the heater and is accessible through the door
opening. Line voltage connections must be made within
this box. A labeled green grounding screw is provided in
the junction box for a grounding wire. See Figure 14.

Wiring should include a means to prevent operation of
the heater when there is no water ow. This is typically
done with a time clock “Fireman’s Switch” as discussed
in Section 2.10.3.

2.10.2 Bonding

CAUTION

To prevent premature failure of the appliance resulting
from stray voltages and voltage differentials, the heater
must be bonded to other equipment which is part of
the pool plumbing system with a solid copper wire not
smaller in diameter than 8 AWG, 6 AWG in Canada.

Zodiac® requires that the appliance be connected to a

"bonding loop" that includes all electrical equipment in
the system and on the equipment pad. Bonding lugs must

be connected with a solid copper wire not smaller than

8 AWG (6 AWG in Canada). Failure to do so will void

warranty.

Page 14

Figure 16. Typical time clock wiring.

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Additionally, in the United States the National Electrical

Code® and in Canada the Canadian Electrical Code,
require that all metallic components of a pool structure,

including reinforcing steel, metal ttings and above
ground components be bonded together (forming a
“bonding grid”) with a solid copper conductor not smaller
than a 8 AWG (6 AWG in Canada).

The NEC and the CEC also require that the equipment
and/or appliances associated with the pool water

circulating system, including, but not limited to, pump
motors and heaters be bonded together as part of the

®

equipotential bonding grid. Zodiac

provides a special

labeled bonding lug on the right side of the heater to

accommodate this requirement.

Figure 17. Terminal block for reman’s switch or

remote control wiring.

2.10.3 Auxiliary Time Clock Wiring

If a time clock is provided to control the pool lter pump,
it should have a separate low-voltage (Fireman’s) switch
for the heater. Route the heater’s 24 VAC control circuit
through this switch as shown in Figures 16 and 17. To do
this, remove the “jumper” from the terminal block in the

heater control compartment. Connect two (2) wires to this
terminal block and route them to the Fireman’s switch at

the time clock. Provide wiring of at least 18 gauge with
insulation at least 3/64" thick and having a temperature
rating of at least 90°C.

2.10.4 Remote Operation

The Hi-E2 pool/spa heater controls can be wired for

®

remote operation. The Jandy Pro Series AquaLink

RS

remote control permits switching from pool to spa, with
temperature set points for each, and turning the heater on

and off from a remote location. Contact your local Jandy

®

Pro Series distributor for information on the AquaLink
RS control system to t your back yard recreational needs.

Figure 18. Water connection as shipped.

An interrupt (on/off) type remote can be connected by
removing the jumper wire on the terminal block located
in the control compartment, see Figure 17 and connecting

the two (2) wires from the remote to the two (2) terminals
on the terminal block. This type of remote control will
turn the heater on or off, but will not switch between the
two (2) temperature controllers on the temperature control

panel or allow for temperature adjustments.

Figure 19. Water connection reversal.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

AQUAPURE

ENGLISH

Page 15

MANUAL BY-PASS DETAIL

MANUAL BY-PASS IS USED
WHEN FILTRATION RATE
EXCEEDS 125 GPM

Figure 20. Typical water piping.

2.11 Water Piping

2.11.1 Reversal of Water Connections

The Hi-E2 is shipped with water connections on the right
side, but it can be modied in the eld to provide left­side water connections. This is done by removing the
water headers and re-installing them opposite to their
original location. Some of the heater wiring and control
components must be relocated, so this change must be

done only by a trained service technician.

Water connection reversal is illustrated in Figures 18 and

19. Proceed as follows:

1. Remove the vent exhaust grille by removing the
four (4) screws which retain it. Retain these and

all other parts for later reassembly.

2. Remove the top cover by removing the screws
around the edges, under the overhang.

3. Remove the header covers. Note that the return

header cover is retained by wing nut fasteners

inside the heater.

4. Disconnect the pressure switch wires and remove

the pressure switch tube from the inlet/outlet

header by unscrewing the brass tting.

5. Remove the temperature control sensor by
removing the retainer bracket and its cap screws.

6. Disconnect the limit switch wires from the limit

switches. The limit switches and the short wire
between them may be left in place.

7. Remove both headers by unscrewing eight (8) cap
screws retaining each header.

8. Install the inlet/outlet header on the left side of the

heater and the return header on the right. Position
gaskets carefully to avoid water leaks.

9. Re-route the limit switch wires in front of the

venturi tailpipe and attach them to the limit
switches.

10. Re-route the temperature sensor wires in front of

the venturi tailpipe and insert the sensor into the
header. When the inlet/outlet header is on the left

side, the sensor opening is at the rear. Re-install

the retainer bracket and screw.

11. Re-install the pressure switch tube and tting.
Relocate tting.

12. Adjust wiring and pressure switch tube routing
so that they don't rest on sharp edges or on

the hot surfaces of the combustion chamber.
The combustion chamber is the portion of the

assembly just above the heat headers.

13. Re-assemble all other components and fasteners.

2.11.2 Pool/Spa Piping Systems

Figure 20 illustrates typical piping for pool equipment

in pool/spa combination pools. With its Flex-Temp
temperature control, the Hi-E

2 is particularly suitable for

this type of pool installation.

Page 16

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Method For Installing

Any Threaded Pipe

Use
Plastic
Sleeve

For Nonthreaded Pipe

or Tube, Discard

Plastic Sleeve

Figure 21. Piping to heater.

The heater must be protected from back-siphoning of

water, which can result in dry starts. If there is any chance

of back-siphoning, provide a check valve between the
pool and the lter pump inlet.

Arrangement of pool system components other than as
illustrated in these diagrams can affect the operation of

the heater’s water pressure switch. Location of the heater
above or below the pool water surface can also affect

operation of the switch. In general, the pressure switch
can be adjusted to accommodate this effect if the heater

water connections are no more than six feet below the

pool water surface and no more than 15 feet above it. See
instructions for pressure switch adjustment in the heater

start-up section of this manual for more information about
this. Note that when pool equipment is located below the

pool surface a leak can result in large scale water loss or
ooding. Zodiac cannot be responsible for such water loss
or ooding or the damage caused by it.

Do not install a shutoff valve or any kind of variable

restriction in the water piping between the heater outlet

and the pool/spa.

Pool systems with water ow rates higher than 100 GPM
require an adjustable external bypass at the heater. See the
section on start-up and adjustment for this information.

2.11.3 Connections at Heater

The Hi-E2 has a universal water header and ange design.
With this feature, a variety of piping materials and sizes
can be used at the heater. 1-1/2" PVC or 2" copper pipe
can be connected directly to the heater using the rubber
“donut” gaskets provided with the heater. 2" PVC or metal
pipe can be threaded directly to the anges and 1-1/2"
schedule 40 metal pipe can be used with the rubber donut
gaskets. See Figure 21.

2.11.4 Pressure Relief Valve and
Temperature Relief Valve

A pressure relief valve (PRV) is recommended in all

installations, and is mandatory in any installation in which

the water ow can be restricted between the heater outlet
and the pool/spa. A pressure relief valve may also be

required by local codes and a pressure relief valve must
be provided in Canada. Be sure to check any applicable
installation codes in your area to determine whether a
pressure relief valve is required.

A pressure relief valve is not supplied with the Hi-E

2. All

equipment installations need to be in accordance with the
manufacturers instructions.

To install a pressure relief valve:

Water In

Figure 22. Pressure relief valve installation.

Out

1. Remove the 3/4" brass plug from the top of the
inlet/outlet header, see Figure 22.

2. Install the pressure relief valve in the opening.
Make sure to get a sung t. Do not overtighten.

3. Provide a short length of brass or stainless steel

pipe as necessary to position the valve above the
sheet metal cover.

5. The nal orientation of the pressure relief valve
should be vertically aligned with the discharge
opening facing away from the heater.

6. Install a discharge pipe from the pressure relief
valve discharge opening to a safe area. This is a

precaution to prevent the possibility of personal

injury or property damage in the event scalding
water is discharged from the pressure relief valve.

7. Install the discharge pipe so that there is no
trapped or standing water in the piping. Discharge
piping must be facing down, terminating with a
threadless nipple, no less than 6” from oor.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

ENGLISH

Page 17

The maximum working pressure of this heater is 75
psig. Be sure to take into consideration the maximum

allowable pressure of the other components in the system

when installing a PRV. Any pressure relief valve installed

must comply with provisions of the standard described in

ANSI® Z21.22 for the United Sates or CSA 4.4 in Canada.

Some local codes may also require installation of a
temperature relief valve. Check with your local codes for

requirements in your area. The valve setting should be in

®

accordance with local codes. Zodiac

recommends that

the water delivered to the pool not exceed 104°F. All

temperature and/or pressure relief valves must be listed

by a Nationally Recognized Testing Lab (NRTL) such as
CSA, UL, or ETL.

2.11.5 Automatic Chlorinators (Chemical Feeders)

A high concentration of chlorine (and many similar

chemicals) in the pool heater can be very destructive.

Heater damage caused by chemical concentration is not
covered by the Warranty. See Table 7 for guidelines on

pool water chemistry.

IMPORTANT Always install a corrosion resistant check

valve when any sanitation equipment, including erosion
feeders and salt chlorination systems are installed.

Wire an electric chlorinator so that it cannot operate unless the

lter pump is running. If the chlorinator has an independent
clock control, synchronize it with the lter clock.

energizes a “hot surface” igniter.

5.

The igniter is allowed to reach ignition temperature,
at which it glows bright red-orange. This is visible
through the combustion chamber view port.

6. The gas valve is opened and gas ows into the
combustion air. The gas/air mixture ows through

the burner into the combustion chamber. It is

ignited by the igniter.

7. The ignition control electronically senses
successful ignition by “ame rectication”, and
the gas valve is allowed to stay on. The igniter is
de-energized.

8. The heater operates for as long as the control
demands heat, subject to continued water ow

and satisfactory operation of the system.

9. When the control stops calling for heat, the
ignition control shuts off the gas valve and the
ame goes out.

10. The ignition control continues to operate the
combustion blower for a “post-purge” period,

after which it is turned off.

The process is repeated upon the next call for heat. If ignition
is unsuccessful, or if the ame fails during normal operation,
the ignition shuts off the gas valve. It imposes a post purge
and two (2) more ignition cycles, and it shuts down the
system if ignition is not achieved in three (3) cycles.

If the chlorinator is equipped with its own pump, install it so
that it introduces the chlorine downstream from the heater,

and, if possible, below the level of the heater outlet tting.

2.12 Start-up and Adjustment

2.12.1 Normal Operation

The Hi-E2 pool heater operates automatically. It provides
heat in response to the selector switch and temperature

settings on the control panel on the front of the heater. The
heater has internal controls to sense adequate water ow

and to handle any abnormal condition.

Normal operation is as follows:

1. The pool/spa system lter pump provides water
ow. A pressure-ow switch in the heater detects
water ow and enables the control to operate the
heater. (If the recommended reman switch has

been provided, it must also enable operation.)

2. If the selector switch is set to "Pool" or "Spa", and

if the water temperature is not warm enough, the
control signals the combustion system to start.

3. The ignition control starts the combustion blower.

4. When the venturi pressure switch detects
combustion air ow and when a suitable “pre­purge” time has been allowed, the ignition control

2.12.2 Start-up

Before operating the heater, pour water into the
condensate tray and verify that it drains properly. Conrm
that pool water is owing normally through the pool

system and equipment. Start the heater in accordance

with the Operating Instructions section of this manual,
with particular attention to the lighting and shutdown

instructions and temperature control operation.

The heater may not start on the rst try. Air in the gas line

or other start-up situations may cause it to recycle. It will

lock out if ignition is not achieved in three attempts. To

provide three (3) additional attempts, turn the pool/spa
selector switch off and then back on.

Figure 23. Step-down gas pressure regulator.

Page 18

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Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

When the heater starts, immediately feel the outlet header

of the heater to conrm that there is adequate water
ow. The header should not be hot. Normally, water
temperature will rise only a few degrees as it passes
through the heater, and a “hot” header or pipe indicates
low water ow.

WARNING

When the heater is fired for the first time, the
combustion chamber refractory binder material is
driven out by the heat of the flame. White smoke and/
or sharp odors may be emitted from the vent during
this period. Do not inhale combustion product fumes
at any time, and especially when these fumes are
being emitted. This “burn-in” period will last only a few
minutes.

2.12.3 Condensate

If there is no water in the condensate trap, the heater’s
combustion blower will pull air into the lower drain hose

and normal drainage of combustion condensate will

not occur. This water will accumulate to blower inlet
level and will (temporarily) be blown out of the vent.
Eventually it will drain back to the tray and will "prime"
the trap. To avoid this "wet" start-up, simply pour water

into the tray before starting the heater.

2.12.4.1 Step-down Gas Pressure Regulator

The step-down regulator does not change requirements
for gas supply piping or pressure as stated in Table 4 and
measurements must be taken before the step-down gas
pressure regulator. In addition, it will not change any
of the servicing procedures for the venturi/combination
ow system. Gas supply must be as stated in the

installation and operation manual and on the heater

rating plate. Servicing procedures for the venturi/
combustion ow system must be as specied in the
installation and operation manual. Incorrect adjustment
of the combination gas control can cause improper heater
operation and hazardous combustion emissions.

To order this regulator as a separate part, please order kit
number R0337300, shown in Figure 23.

2.12.5 Adjustment of Water Pressure Switch

The pressure switch is pre-set at the factory for normal

pool installations. Do not adjust it unless the heater water

connections are more than three feet above or below the

pool surface. If they are not in this range, the pressure
switch must be adjusted. This can be done in the eld if

the water connections are no more than six feet above the
pool surface and no more than ten feet below it. For other
situations, contact a Jandy Pro Series representative.

2.12.4 Gas Pressure

Model Hi-E2 pool heaters include a step-down regulator to
reduce the pressure of gas entering the combination gas valve.

This regulator is factory set between 1.25” and 3.0” WC
regardless of whether natural or LP gas is used by the heater.

Conrm that gas supply is of adequate size per Section

2.9 of this manual. Conrm that the step-down regulator
is properly set by verifying that the pressure at the port on
the inlet side of the gas valve is 1.25 - 3.0 inches WC with
the heater operating (red).

Checking of gas pressure at the outlet of the gas valve
requires knowledge of the venturi system of the Hi-E2
pool heater. Do not attempt to adjust this pressure without
thorough understanding of its operation and settings, as

outlined in the maintenance section of this manual.

CAUTION

The water pressure switch should be adjusted to turn
the heater off when the pump is off. Setting the switch
to close at too low of a flow can damage the appliance.
Adjust the switch to turn the heater off, not on.

To adjust the pressure switch, proceed as follows. See
Figure 24.

The pool lter must be clean before making this
adjustment. The heater does not have to be ring.

1. Turn the switch to OFF, and make sure the

pressure switch is at its lowest setting. This is
done by rotating the adjuster counterclockwise as
far as it will go.

2. Start the lter pump and conrm by means of

an ohmmeter that the pressure switch closes (if
the switch fails to close, replace it with a switch

which has a lower minimum setting).

3. Turn switch to ON. Heater should start.

4. With your ngers, turn the adjustment sprocket
very slowly clockwise until the heater goes off.

SLOWLY TURN ADJUSTMENT
SPROCKET CLOCKWISE
UNTIL HEATER GOES OFF.

Figure 24. Adjustment of pressure switch.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Figure 25. Temperature rise measurement at return

header.

5. Slowly turn the pressure switch adjustment

sprocket counterclockwise one-quarter turn. The
heater should come back on.

6. Check the adjustment by turning the lter pump

OFF. The burners should shut off immediately.

If they do not, restart the lter pump and repeat
Steps 6 and 7. Check the adjustment again.

7. Return the pool temperature control to the desired

temperature.

It may be necessary to repeat these steps to get a proper
setting. The switch must be set so that the heater will not
re unless the pump is running. If a proper setting cannot

be reached, contact the factory service department.

8. Reinstall the door.

2.12.6 Water Temperature Rise

The Hi-E2 pool heater has an internal bypass device which

accommodates a wide range of water ow. Its purpose
is to ensure that ow through the heat exchanger is
adequate to provide high efciency operation and prevent
overheating even though ow through the lter system

may vary.

Correct water ow should be conrmed upon start-up of
the heater and in most servicing situations. If ow is not

normal, corrections must be made to the pool system. If

the system has an external ow bypass (because of very
high lter system ow), it should be adjusted to provide
proper ow through the heater. Flow is evaluated by
determining the water temperature rise through the heat
exchanger.

ENGLISH

Page 19

inside the heater. Remove the brass plug on the top
surface of the header and install a Pete's Plug and pocket
thermometer. See Figure 25.

Proceed as follows:

1. If the piping system has a manual bypass valve,

close it.

2. Turn off the heater by moving the switch on the
temperature control panel to “Off”.

3. After three minutes, note and record the
thermometer reading. This is the pool

temperature.

4. Start the heater and let it operate for at least
ve minutes. Note and record the thermometer
reading. The difference between this reading and
the rst one is the temperature rise.

5. If the piping system has a manual bypass valve,
gradually adjust it until the temperature rise is in
the range required by Table 6.

6. Scribe a line on the bypass valve shaft and case
to mark the correct adjustment position. Wire the
handle to the pipe to prevent tampering.

Note that temperature rise is somewhat less when the
water is hot (spa application) and when heater is installed

at elevations signicantly above sea level. For high
elevation installations, reduce the numbers in Table 6 by
3% per 1000 feet above sea level.

Table 6. Water Temperature Rise and Flow Rates

(measured at return header).

Minimum

Model

350 20 (11) 29 (16) 30

Temp Rise,

°F (C)

Maximum

Temp Rise,

°F (C)

Minimum

System

Flow

GPM

In a system without external bypass, it may be necessary

to make changes. If temperature rise is too low, a manual
bypass must be installed. If temperature rise is too high,
there is inadequate ow, possibly requiring a change to
the piping system or a larger pump. Before proceeding

with either remedy, verify proper heater operation. Low

gas input results in low temperature rise and vice-versa.
A problem with the heater internal bypass assembly also

affects measured temperature rise.

Before checking temperature rise, be sure the pool lter
is clean. If necessary, clean the lter. Temperature rise

is measured at the return header, which is on the side
opposite to the inlet/outlet header. For access, remove the

side cover, which is held in place by wing nut fasteners

Page 20

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Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Section 3. Operating

Instructions

Lighting and shutdown instructions are posted inside the

heater.

WARNING

LP GAS: To avoid possible injury, fire and explosion,
read and follow these precautions and all instructions
on this appliance before starting the heater. LP
(propane) gas is heavier than air and will remain at
ground level if there is a leak. Before lighting, sniff at
ground level. If you smell gas, follow these rules:

1. DO NOT light matches. DO NOT turn electric
lights or switches on or off in area. DO NOT use
an electric fan to remove the gas from area.

2. Shut off gas at LP tank.

3. Telephone gas company and re department for

instructions. Give your name, address and phone
number.

If your LP tank runs out of fuel, turn off gas at the
appliance. After the tank is refilled, the appliance must
be re-started according to the instructions located on
the inside of the door.

3.1 Start-Up Procedure

WARNING

For your safety, when starting the heater, keep your
head and face well away from the burner area to
prevent any risk of personal injury.

WARNING

Vent pipes and heater tops get hot! These surfaces
can cause serious burns. Do not touch these surfaces
while the heater is in operation.

With any new pool or spa installation, run the lter pump
with the heater off long enough to completely clean the

water. This removes any installation residue from the

water. Clean the lter at the end of this operation before
starting the heater. Do not operate the heater unless the
pool is properly lled with water.

When raising the temperature of water in a cold pool,
remove all time clock settings. This lets the lter system

and heater operate continuously until the water reaches the

temperature setting on the thermostat. When that happens,
the heater will shut off automatically, but the lter pump
will keep running.

3.2 Temperature Controls

The Hi-E2 heater has a dual temperature control which

allows either of two (2) different temperature settings to

be selected with the rotary switch on the control panel.
The owner can set one control for normal use and the

other for standby, or one might be set for a pool and the
other for a spa. Setting the rotary switch to the middle
position turns the heater off. See Figure 26.

The temperature controls on the Hi-E

from approximately 70°F (21°C) to approximately 104°F
(40°C). Always use an accurate pool thermometer to

test the pool water temperature. To prevent users from

setting the water temperature higher than desired, use the
TEMP-LOK feature by positioning the tab next to the
knob and then tightening the screw. Note that the heater

should not be used to maintain pool or spa temperature

below 70°F (21°C).

IMPORTANT The temperature controls cannot be

calibrated in the field. If the temperature control
does not work, shut down the heater and replace the
temperature control. DO NOT use the temperature
control to shut the heater off. Remove the access door
and turn the main gas valve to OFF.

2 cover a range

CAUTION

Do not use this heater if any part has been under water.
Immediately call a qualified service technician to inspect
the heater and replace any part of the control system
and any gas control which has been under water.

CAUTION

Should overheating occur or the gas supply fail to shut
off, turn off the manual gas control valve to the heater.

CAUTION

Do not attempt repairs on the gas controls or appliance.
Tampering is dangerous and voids all warranties.

CAUTION

Keep all objects off the top of the heater. Blocking air flow
could damage the heater and might void the warranty.

3.3 Lighting and Shutdown

3.3.1 Lighting the Heater

Lighting and shutdown instructions are listed on the label

attached to the inside of the service door and also on the
inside of the control compartment door.

Lighting instructions are as follows:

1. Turn off all electrical power to the heater at the

main junction box.

2. Open the control compartment door and switch

the gas valve to OFF.

3. Turn the rotary switch on the temperature control
panel to OFF.

4. Wait 5 minutes before trying to start the heater.

5. Switch the gas valve toggle switch to ON. See
Figure 27.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

Jandy

Figure 26. Temperature control panel.

6. Replace the control compartment door.

7. Turn on electrical power to the heater.

8. Turn on the lter pump.

9. Turn the rotary switch to either SPA or POOL. Set
the temperature control to the desired setting. The
ignition control automatically lights the burner

when the thermostat calls for heat.

10. Set the time clock, if one is installed.

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Page 21

3.4 Water Chemistry

3.4.1 Pools

The mineral content of swimming pool water increases

daily, due to natural evaporation and the addition of

sanitizing chemicals. If the mineral concentration in the
pool gets too high, the excess minerals will deposit on the
walls of the pool, in the lter system, and in the heater

tubes. It is important to keep the pH factor of the pool

water between 7.4 and 7.6. See Table 7 for guidelines on

other chemical measurements.

3.4.2 Spas

The proper chemical balance in spa water is more critical

than in a swimming pool heater operation. Due to the spa's
size, high water temperature, and heavy usage, chemical
values in a spa can vary greatly. This chemical imbalance

can result in unsanitary water conditions, and affect the
life of the heater.

3.4.2.1 Spa Water Chemistry

3.3.2 Shutdown

Complete shutdown instructions are as follows:

1. Set both temperature controls to the lowest

setting.

2. Turn the rotary switch on the control panel to
OFF.

3. Turn off all electrical power to the heater at the

main junction box.

4. Open the control compartment door and switch
the gas valve to OFF.

5. Turn external gas valve off.

OF

F

ON

Figure 27. Gas valve.

GAS CONTROL TOGGLE
SWITCH SHOWN IN
“ON” POSITION

OFF

ON

Maintaining safe water conditions in a spa can only be
done by regular water changes and the proper addition of
sanitizing chemicals. Kits are available from your local
pool supply dealer for making the various tests for mineral

content. One of these kits will detect copper in the system.

This is usually a warning that corrosion is taking place,

possibly due to a low pH value combined with other
chemistry problems. The condition can be corrected by

changing the spa water and closely monitoring the pH
factor and chemical properties of the water. See Table 7.

Table 7. Chemical Concentration Levels.

Test Recommended

Level*

Free Chlorine or 1.0 to 3.0 ppm (3.0 to 5.0 spa)

Bromine 2.0 to 4.0 ppm (3.0 to 5.0 spa)

pH 7.4 to 7.6

Total Alkalinity (TA) 80 to 120 ppm

Calcium Hardness (CH) 200 to 400 ppm

Cyanuric Acid 30 to 50 ppm

Total Dissolved Solids (TDS) Less than 2000 ppm

Copper 0 ppm

*Concentration levels taken from "Basic Pool and Spa Technology" published by APSP
(Association of Pool and Spa Professionals).

Page 22

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Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

3.4.2.2 Saturation Index

PH, Total Alkalinity (TA), temperature, Calcium Hardness

and Total Dissolved Solids (TDS) play a role in whether

the water is either corrosive or scale forming. These
factors are combined in the Langelier Saturation Index,
which is a method for determining whether or not water is

properly balanced.

Saturation Index = pH + AF + CF + TF -12.1*

A-Factor=(AF), C-Factor=(CF), T-Factor=(TF)
Total Alkalinity Calcium Hardness Temperature
A-Factor C-Factor T-Factor

PPM

5 = 0.7 5 = 0.9 32 = 0.0

25 = 1.4 25 = 1.0 37 = 0.1

50 = 1.7 50 = 1.3 46 = 0.2

75 = 1.9 75 = 1.5 53 = 0.3

100 = 2.0 100 = 1.6 60 = 0.4

150 = 2.2 150 = 1.8 66 = 0.5

200 = 2.3 200 = 1.9 76 = 0.6

300 = 2.5 300 = 2.1 84 = 0.7

400 = 2.6 400 = 2.2 94 = 0.8

800 = 2.9 800 = 2.5 105 = 0.9

A saturation index of 0 is perfectly balanced

A negative saturation index has corrosive tendencies

A positive saturation index has scaling tendencies

A saturation index of +0.3 or -0.3 is ideal
*-12.1 should be changed to -12.2 if Total Dissolved Solids (TDS)
measure at 1,000 ppm or greater

Table 8. Water Saturation Index

Factor
Value

PPM

The practice of putting tablet-based sanitizer in the

skimmer basket can produce heavily chlorinated water
with very low pH. If this comes in contact with metal

parts of the heater it can cause serious damage. Practices

like this should be discontinued.

If acidic conditions are present, there could be signs of
metal in the pool water that could cause staining on the
oor of your pool. This might manifest itself in the form
of brown stains on the nish of your pool bottom or pool

water discoloration. Your local pool dealer can test for
metals in your water or can provide you with a test kit.

Every effort should be made to maintain the water balance

of your pool or spa in the proper range. Ignoring this very

important component of your pool’s water chemistry can

make the water less enjoyable to bathe in and result in
permanent damage to your heater and/or complete failure

of individual components.

Zodiac Pool Systems does not warrant heat exchangers
damaged by corrosive water issues or from the build-up
of calcium in the heater’s heat exchanger. Any questions
regarding proper water balance can be directed to our

product support line at Zodiac® or to your local pool dealer.

Factor
Value

°F

Factor
Value

3.4.2.3 Water Changing

Zodiac Pool Systems, Inc. recommends changing of
spa water every 60 days if usage is light and every 30
days during heavy usage. Be sure to stabilize the water
chemistry after every water change.

3.4.2.4 Corrosion

The corrosive action of pool/spa water is increased by the

following:

• Low pH - acidity

• Low Total Alkalinity - bicarbonates

• Low Calcium hardness - soft water

3.4.2.5 Testing

Zodiac recommends that spa owners purchase a test kit

and use it regularly. A minimum kit is one which will

measure chlorine and pH levels.

The pool/spa owner will nd it helpful to have a qualied

professional technician perform more extensive chemical

testing and water changing on a regular basis.

3.5 Spa/Hot Tub Safety Rules

The following "Safety Rules for Hot Tubs," recommended

by the U.S. Consumer Product Safety Commission should

be observed when using the spa:

1. Spa or hot tub water temperature should never

exceed 104°F (40°C). A temperature of 100°F
(38°C) is considered safe for a healthy adult.
Special caution is suggested for young children.

2. Drinking of alcoholic beverages before or during

spa or hot tub use can cause drowsiness which
could lead to unconsciousness and subsequently

result in drowning.

3. Pregnant women beware! Soaking in water above
102°F (39°C) can cause fetal damage during the
rst three (3) months of pregnancy (resulting in
the birth of a brain-damaged or deformed child).
Pregnant women should stick to the 100°F (38°C)

maximum rule.

4. Before entering the spa or hot tub, users should

check the water temperature with an accurate

thermometer; spa or hot tub thermostats may err
in regulating water temperatures by as much as
4°F (2°C).

5. Persons with medical history of heart disease,

circulatory problems, diabetes or blood pressure
problems should obtain their physician's advice

before using a spas or hot tubs.

6. Persons taking medications which induce
drowsiness, such as tranquilizers, antihistamines,
or anticoagulants should not use spas or hot tubs.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

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Page 23

Prolonged immersion in hot water can induce

hyperthermia. Hyperthermia occurs when the internal

body temperature reaches a level several degrees above
the normal body temperature of 98.6°F (37°C). Symptoms
include dizziness, fainting, drowsiness, lethargy, and an

increase in the internal body temperature.

The effects of hyperthermia include:

• Unawareness of impending hazard

• Failure to perceive heat

• Failure to recognize need to leave spa

• Physical inability to leave spa

• Fetal damage in pregnant women

• Unconsciousness resulting in a danger of drowning

3.6 Swimming Pool Energy Savings Tips

Zodiac® suggests the following to help conserve fuel and

minimize the cost of operating your pool heater without
sacricing comfort.

1. Set the heater temperature control no higher
than 78°F (26°C). The American Red Cross

maintains that the healthiest water temperature

for swimming is 78°F (26°C). Be certain you are
using an accurate pool thermometer because a
variance of 4°, from 78 to 82°F (26 to 28°C), will
use as much as 40% more gas.

2. Carefully monitor the water temperature of your

pool in the summer time, because heater usage

can be reduced due to warmer air temperatures.

3. Find the proper setting on the pool heater

temperature control and use the TEMP-LOK to

discourage further adjustments.

4. Set the lter time clock to start the pump no
earlier than 6:00 AM during the pool heating
season. This is the time when nightly heat loss
stabilizes.

5. If the pool is only going to be used on weekends,
reduce the heater temperature control setting by 8
or 10 degrees during the week. It should be reset
to the 78°F (26°C) level before expected usage,
keeping in mind to allow enough lead time for the

water to reach the desired temperature.

6. During the winter shut down the heater by
following the lighting and shutdown instructions
in Section 3.1. When on vacation for longer than

a week, make sure the heater is shut off at the
temperature control panel.

7. Where possible, shelter the pool from prevailing
winds with well-trimmed hedges or other
landscaping, cabanas, or fencing.

8. Always use a pool cover when practical. Besides
providing a valuable safety feature, a pool cover

will reduce heat loss, conserve chemicals, and

reduce the load on lter systems.

3.7 Seasonal Care

3.7.1 Spring and Fall Operation

During periods when the pool is only going to be used

once in a while, turn the temperature control to the "MIN"

setting. This prevents the pool from becoming "chilled,"

yet still requires the least amount of time to raise the water

back up to swimming temperature.

If the heater is not going to be used for a long period of
time, shut it down completely, following the instructions
in Section 3.3.2, Shutdown, or the lighting and shutdown

instructions posted inside the heater.

3.7.2 Winterizing

If you don't plan to use the pool or spa over the winter

and your area is subject to freezing temperatures, have a
qualied professional technician perform the following
steps to protect the heater:

1. Shut off the heater's gas valve according to the
lighting and shutdown instructions.

2. Shut off the main supply gas cock outside the
heater jacket.

3. Completely drain the heater before the rst frost.

To drain the heater, remove the side panel, and

remove the drain plug. See Figure 28.

4. Grease the threads of the drain plug and return it
to the manifold, but do not tighten.

5. Disconnect the copper tubing from the pressure
switch tting. See Figure 28.

6. Cover the vent grille so that snow will not

accumulate in the combustion blower, where it

may freeze.

Right Side

Remove Plug

Figure 28. Water header draining.

Page 24

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

To reactivate the heater in the spring, have a qualied
professional technician reassemble the heater as follows:

1. Attach the pressure switch tting to the copper
tubing. See Figure 28.

2. Tighten the drain plugs in the headers.

3. Clean the condensate drainage system and

condensate trap.

4. Replace the combustion air lter.

5. Uncover the vent grille.

6. Turn on the main supply gas cock outside the
heater jacket.

7. Turn on the heater according to the lighting and

shutdown instructions inside the top cover.

3.8 Periodic Inspection

WARNING

Improper installation or maintenance can cause
nausea or asphyxiation from carbon monoxide in flue
gases which could result in severe injury, or death.

3.8.1 Owner Inspection

The Hi-E2 heater has been designed and constructed to
provide long performance life when installed and operated
properly under normal conditions. The following basic
guidelines should be maintained:

1. Keep the top of the heater clear of all debris, and

make sure there is no collecting of ammable

materials, leaves, paper, etc., around or beneath
the heater.

2. Keep the pool heater area clean and free of all

combustible materials, gasoline and other liquids,

and vapors.

3. Do not use the heater if any part has been under

water. Immediately call a qualied professional

technician to inspect the heater and replace any

part of the control system and any gas control

which has been under water.

4. Check for spider webs and other debris at the
combustion air inlet and vent outlet — especially
at spring start up.

neutralizer and enough water to create a water

trap in the condensate drain assembly.

2. Replace combustion air lter. Refer to Section

4.4.

3. For heaters installed with combustion air or vent

piping, inspect screens at the inlet or outlet of

these pipes. Clean screens as necessary to assure

free ow. See illustrations in combustion air and

vent pipe installation section.

4. Make sure that the pressure switch operates
properly by shutting the lter pump off and on a
few times. The burner should go off immediately
after the pump stops. An ignition sequence should

start shortly after the pump is turned back on.

5. Make a visual check of the main burner ame.
The ame can be seen in a mirror/viewport
arrangement in the upper part of the heater. The
ame should be light blue and the burner surface
should be dark, with only a few glowing bers.
See Figure 29.

6. Inspect the gas and electronic controls, including
the following:

• High temperature limit switch

• Water pressure switch

• Venturi differential pressure switch

• Automatic gas valve

• Burner temperature limit switch

• Vent limit switch

• Temperature control

• Control circuit fuse

7. Perform a temperature rise test in accordance with

Section 2.12.

8. If the heater is equipped with a pressure relief
valve, clean any accumulated corrosion and make

sure that water runs freely through it.

9. Inspect the outside of the combustion chamber

and burner for corrosion and indication of
improper operation.

10. Regularly inspect electrical controls for

deterioration. Repair and replace as necessary.

NOTE Keep this manual in a safe place for future reference

by you and your professional technician when
inspecting and servicing the heater.

3.8.2 Professional Inspection

Inspection by a qualied professional technician,
performed at least once a year by a qualied professional
technician, are required to keep the heater operating
efciently through the years. The following basic checks

should be performed.

1. Inspect the condensate disposal system to be

sure that condensate ows freely and verify
that the condensate tray has sufcient limestone

Figure 29.

Burner ame (visible near top of heater in mirror).

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

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Page 25

Section 4. Maintenance and

Service

WARNING

Improper installation or maintenance can cause
nausea or asphyxiation from carbon monoxide in flue
gases which could result in severe injury, or death. For
indoor installations, as an additional measure of safety,
Zodiac Pool Systems, Inc. strongly recommends
installation of suitable Carbon Monoxide detectors
in the vicinity of this appliance and in any adjacent
occupied spaces.

WARNING

To avoid the risk of exposure to unsafe levels of
Carbon Monoxide, which can result in serious personal
injury or death, always ensure that the combustion
air filter is properly installed and secured in the tracks
provided in the air filter box.

WARNING

SERVICING SAFETY

Some of the servicing procedures for the HI-E2
heater are hazardous because they involve fuel gas,
electricity, moving parts and procedures which require
testing or temporary bypass of safety controls. For this
reason, the heater must be serviced only by a qualified
professional service technician.

IMPROPER SERVICE HAZARD

The HI-E2 heater incorporates unique design features.
Incorrect service of this heater can result in personal
injury or damage to property. To avoid such hazards,
the heater must be serviced only by a qualified
professional service technician.

4.1 General

A qualied professional technician must service the Hi-

2 pool heater using Zodiac

E

calling for service, however, the owner should check for

obvious problems. The other components in the pool

system, including pump, lters and strainers, water valves,
gas supply, electrical power and time clocks, have an

effect on heater operation.

®

service procedures. Before

4.2 Induced-Draft Combustion System

The Hi-E2 pool heater has an advanced combustion

system which makes it highly efcient and reliable. This
system is illustrated in Figure 30.

A special corrosion resistant high-speed blower pulls
ow through the system and exhausts it to the outdoors.
Air is pulled into the system through a combustion air
supply duct, when provided, and through an air lter into

a venturi. The venturi functions much like an automobile

carburetor venturi - i.e. when air is forced through it, a
“negative” pressure is created at the venturi throat. This
negative pressure pulls gas through a metering orice,
resulting in an optimal mixture of air and fuel gas. The air
and gas are thoroughly mixed in the venturi tailpipe, pulled
through a special burner and ignited in the combustion

chamber. Hot combustion products are then pulled

through a highly efcient downward-ow heat exchanger.

Combustion products are cooled below their dew point and
condensate water is formed and drained away. Flow then
enters the blower, where it is forced out of the heater at the

vent terminal or through a vent pipe to the outdoors.

4.3 Heater Components and Their
Operation

1. Gas valve / Regulator - The gas valve controls
gas ow into the venturi. It provides ow only

when the temperature control require heat and
only if all safety controls enable operation. It is
also a negative pressure regulator. It regulates the

gas pressure to 0.2” WC less than the air pressure

at the venturi inlet. This is necessary for proper
operation of the venturi system and cannot be

done with common (positive pressure) gas valves.

2. Combustion blower - The combustion blower is

a specially designed to handle moist combustion
products, having special plastic housing and

impeller. It is powered by a brushless DC motor.

Conrm that the heater control is set to “pool” or “spa”
and that the corresponding temperature knob is set high
enough to make the heater operate. Make sure the pump is
operating, that the lter and strainers aren’t clogged, that
there are no mis-positioned water valves, that the gas or

electric power supplies aren’t shut off and that time clocks

are properly adjusted. Also be sure that the combustion air
lter is clean and that there is no blockage of the vent or

combustion air inlet. See later section on combustion air

lter service.

Figure 30. Combustion system diagram.

Page 26

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

3. Temperature Control - The control is an electronic
control which senses water temperature by means
of a thermistor and controls heater operation to

bring the water to that selected. It has two (2)
temperature setting knobs which are typically
used to set pool and spa temperatures. A selector
switch determines which setting is chosen.

4. Ignition Control - The ignition control provides
energy for ignition of the air/gas mixture,
monitors the ame and controls the combustion
blower and gas valve. When the temperature
control requires heat, the ignition control
starts the blower, providing a pre-purge of the

combustion chamber. Then it applies electrical

power to a “hot surface” igniter. When the igniter
is hot enough, it opens the gas valve. It has
sophisticated means to sense ignition and ame
condition so that unburned gas will not escape.
After the burner is shut off, it continues blower
operation to provide a post-purge period.

5. Igniter - The hot surface igniter is a ceramic

element which becomes very hot when electrical
power is applied to it. It functions both as an

igniter and as ame sensor. As a sensor, it is the
electrode through which the ignition control
detects “rectication” of current passed through
the ame. Inadequate rectication indicates an
unsatisfactory ame condition. The ignition
control responds to the ame signal provided by
the ignitor.

6. Venturi Pressure Switch - This switch veries
that air is owing through the combustion system
by sensing pressure reduction at the venturi throat

(relative to pressure at the venturi inlet). It shuts

off the heater if air ow is inadequate.

7. Limit Switches -

Two (2) limit switches prevent

excessive water temperature - both are just outside
of the heat exchanger outlet (slightly before the

mixed water stream). If either senses excessive
temperature, burner operation is interrupted.

8.

Water Pressure Switch - This control senses whether

or not water is available to the heater by measuring
back pressure inside of the heat exchanger. If the
pool water pump fails or the water lter is blocked,

the pressure switch prevents operation of the burner.
It can be affected by the installation conditions as
discussed earlier in this manual.

9. Burner Temperature Limit Switch - This is a
single-use switch which detects abnormal burner

temperature. It is a disc-type switch which is

held against the burner plenum by a sheet metal

bracket. It is not able to be reset. The burner limit
switch prevents or interrupts burner operation if
the burner plenum becomes too hot.

10. Vent Limit Switch - The vent limit switch

protects the vent system from excessive exhaust
temperature. It is located on the vent diffuser
above the combustion blower. It interrupts burner
operation if temperature becomes too hot for the
plastic materials used to vent the heater.

See the earlier section entitled Start-up and Adjustment

for the normal sequence of operation.

4.4 Combustion Air Filter

WARNING

To avoid the risk of exposure to unsafe levels of
Carbon Monoxide, which can result in serious personal
injury or death, always ensure that the combustion
air filter is properly installed and secured in the tracks
provided in the air filter box.

The combustion air lter is a rectangular foam
lter located in a box near the bottom of the control
compartment. The lter removes lint and large scale dust
particles to prevent blockage of the burner media.

The lter should be replaced annually in normal

service. Heavy use of the heater or operation in adverse
environments may dictate more frequent replacement,

however. It can be removed through the front of the lter
box as illustrated in Figure 31.

Remove the wing nuts retaining the front panel and slide
the panel out. Replace it only with the specied part

available from a Jandy Pro Series representative. Push the

replacement lter into the tracks and slide the panel back in.

Filter

Figure 31. Air lter replacement.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

ENGLISH

Page 27

4.5 Electrical Trouble Shooting

WARNING

ELECTRICAL SHOCK HAZARD. This heater contains

wiring that carries high voltage. Contact with these
wires may result in severe injury or death.

CAUTION

Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.

This section describes procedures for checking the electri­cal power and control components of the heater one at a
time and in the order they appear in the control circuit.

These procedures require a Volt-Ohm meter with 0-150
VAC range, and 0-1000 Ohm resistance range. Figure 32

shows the power and control circuits, and where to take

Hi-E2

measurements. Location numbers in circles have been

added, and will be referenced in the following sections.

As stated at the beginning of this manual, some of these
procedures are hazardous. Only a qualied service

technician should service the heater.

4.5.1 115V Electrical Power Supply

The electrical components of the Hi-E2 pool heater are

designed to operate with supply voltage ranging from
103V to 126V at 60 Hz. Measure supply voltage at the
“hot” and “neutral” wirenut connections in the heater
electrical junction box (identied as points A and B on
the wiring diagram). If no voltage is present, correct

this external to the heater. Circuit breakers, time clock

settings or similar devices may be the problem. Voltage
outside of the above range may be due to poor wiring,
poor connections, other loads such as air conditioning

compressors or to an electric utility company problem.

Arrange for correction of the voltage as appropriate.

4.5.2 Control Circuit Trouble Shooting

The heater controls are in a 24V 60 Hz circuit
with operating and safety controls basically
arranged in a series circuit. Trouble shooting is
done by probing for voltage at various points

in the circuit to determine which component

is preventing operation. Check points are
indicated on Figure 32. The recommended
procedure steps through the circuit in a
sequential way, but verifying voltage at any
of the numbered points conrms that all prior

components are OK. Experienced technicians

may be able to shorten the process by going

directly to one of the intermediate test points.

Figure 32. Wiring diagram with test points.

4.5.2.1 Transformer

Attach one lead of the voltmeter to the
transformer terminal with a yellow wire

attached to it, which is point 11 on Figure 32.

(This lead can be left in place for most of the

testing.) Touch the free lead of the meter to the

transformer terminal with a red wire, point 1.

The meter should show 20-28 volts. If there is
no voltage, replace the transformer.

4.5.2.2 Fuse

Leaving the “common” voltmeter lead in place

at point 11, touch the free probe to point 2.
This is the terminal block screw attached to
the red wire from the in-line fuse, and absence

of voltage indicates a defective fuse. If there
is no voltage, inspect the rest of the wiring to
be sure that there is no “short” such as contact

of a terminal with the heater chassis or another

F

terminal. Correct any such condition and
replace the fuse.

Page 28

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

4.5.2.3 Fireman Switch and External
Interlocks

Probe for voltage at point 3, the other connection of the

terminal block, which has a white wire connected to

it. If there is no voltage, the time clock switch or other
external interlock may be mis-adjusted, mis-connected or

defective. Correct this external problem.

4.5.2.4 Limit Switches

Probe for voltage at point 4, which is the water pressure

switch terminal with the white wire connected to it. This
switch is mounted on the end of a copper tube and is

about 2” in diameter. Absence of voltage at this point

indicates that one of the limit switches is open. This is
normally due to excessive water temperature, which should

be thoroughly investigated before replacement of limit
switches. Water ow deciency may be due to obvious
problems such as a defective pump or blocked water lter.
Alternatively, it may be due to overring, or to a problem
with the water piping or the heater's internal bypass control.
Overring might be a result of an incorrect gas orice or
supply of propane gas to a heater intended for natural gas.

If there are no such fundamental problems, identify which

of the switches is open by temporarily connecting a jumper

wire across its terminals. Replace a defective limit switch.

Limit switch access is through the side cover panel on the

side of the heater to which water pipes are connected.

NOTE The limit switches have different trip points, and it is

important that replacements are correct. The 150°F
switch has a red dot on the side of the brass fitting, and
must be installed closest to the combustion chamber.
The 135°F switch has no dot and must be installed in
the tapping closest to the water piping connections.

4.5.2.5 Water Pressure Switch

Touch the voltage probe to point 5, which is the other
terminal of the water pressure switch having a black wire

is connected to it.

If there is no voltage, the pressure switch contacts
are open. This is almost always due to a water ow
deciency, the most common one being a blocked water
lter. It may be due to causes cited in the previous
paragraph, however, and sometimes is due to blockage
of the copper tube or mis-adjustment of the switch.
Investigate thoroughly, referring to the earlier section on
“Adjustment of Pressure Switch”. If there is no problem
with the pool system or pressure switch adjustment,

replace the pressure switch.

4.5.2.6 Temperature Control

Absence of voltage at point 6 indicates that the control is
not calling for heat. Be sure that knobs are set to call for
heat as indicated earlier and as described in the Operating
Instructions section of this manual. Verify that the

thermistor sensor wires are not severed or shorted. Check

wiring connections by removing the temperature control
through the front of the bezel. If the control is properly
set and all wiring and connections are correct, replace the

control.

4.5.2.7 Venturi Pressure Switch

Touch the voltmeter probe to point 7, which is the
terminal of the venturi pressure switch having a purple
wire connected to it. If there is no voltage at point 7, the
venturi pressure switch is open, indicating inadequate
ow through the combustion system. The venturi pressure

switch is a differential type switch which is activated by

the pressure difference created when air ows through the
venturi. When the combustion blower is not operating,
the venturi pressure switch must be open and voltage will
not be present. See following sections on ignition control

"lockout" and combustion blower operation for possible
remedies.

Check for blockage at the combustion air inlet, a dirty
air lter or blockage at the vent exhaust or in the vent. In

improperly installed vent may trap condensate water, for

example, restricting ow. If there is no obvious problem,
analyze venturi operation as outlined in a later section of
this manual. If ow is normal, replace the venturi pressure

switch.

4.5.2.8 Ignition Control

There will be voltage at point 8, which is the “MVP”
terminal of the ignition control, only when there is an
attempt to ignite the burner or when the ignition control’s
ame sensing system has determined that it is OK to allow
burner operation. Even if voltage has been conrmed at
point 7, the “trial for ignition” sequence is imposed by the
ignition control. This sequence consists of a 15 second
period of pre-purge blower operation, a 40 second period
for heatup of the igniter and a 7 second trial for ignition,
during which there is voltage at point 8. If satisfactory
ignition is not achieved, the igniter is turned off and the
blower is operated for a 45 second post-purge. The system
may go through this cycle as many as three (3) times,
but thereafter it is “locked out” by the ignition control.
Additional attempts will be made only if the call for heat
is interrupted by turning off electrical power or setting the
control to “Off”.

Probe for voltage at point 6, which is the terminal of the
venturi pressure switch having a yellow & black wire

connected to it. This is the switch mounted on the frame
above the blower between the vent diffuser and the

venturi tailpipe. It is about 4” in diameter.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

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Page 29

To trouble shoot the ignition control, connect the voltmeter

probe at point 8 and set the control to call for heat. Observe

that the normal sequence takes place by noting blower
operation, the glow of the igniter through the combustion
chamber sight glass and then voltage at point 8. If the
blower does not operate or the igniter doesn’t glow,
investigate as outlined in a later sections. If both of these
components operate normally but voltage doesn’t appear
at point 8 during the trial for ignition, replace the ignition
control. If voltage appears at point 8 but there is no
ignition, proceed to analysis of other components.

4.5.2.9 Burner Limit Switch

The burner limit switch is located on the front surface of

the burner plenum near the top of the heater. Servicing this

switch normally requires removal of the top of the heater,

but it can be checked by probing for voltage at point 9 on
the vent limit switch. Point 9 is the terminal of the vent
limit switch to which is connected a brown wire coming

down from above. The vent limit switch is mounted on the
vent outlet diffuser above the combustion blower.

Voltage will be present at point 9 only during normal
operation or during a trial for ignition. If necessary
restart the heater using the control to obtain one of these
conditions. If voltage does not appear at point 9, the

burner limit switch is open. This may be due to burner

mis-adjustment, incorrect gas orice size or similar
problems which should be investigated as outlined in

later sections. If there are no such problems and there is
no evidence of excessive burner temperature, replace the
burner limit switch.

4.5.2.10 Vent Limit Switch

4.5.2.11 Combustion Blower

The combustion blower operates when it is provided with

115V, 60 Hz power. Conrm this by connecting the voltmeter
between the “neutral” wirenut and point C, which is the
terminal marked F2 on the ignition control. Unless the system
is in lockout, 115V should be present at point C whenever a
call for heat reaches the venturi pressure switch (i.e. 24V at
point 6). To be sure that a lockout condition is not in effect,

turn the heater off and then back on at the control.

If 24V is present at point 6 but 115V does not appear at
point C (and there is no lockout) the ignition control is
defective. If 115V power is available at point C and the

combustion blower does not run, the blower is defective
and should be replaced. Note, however, that the blower

has an internal overtemperature limit and before replacing
it conrm that the environment of the heater is not

excessively hot. If so, ventilation of the heater room may
be necessary.

4.5.2.12 Igniter

The igniter should glow during ignition attempts as outlined
in the earlier section on ignition control. If it does not,

connect the voltmeter between terminals marked D and E

on the ignition control. If 115V is present during the igniter­on portion of the ignition sequence but there is no glow,
the igniter is probably defective. If voltage is not found, the
ignition control is defective and should be replaced.

An igniter which will not glow should be checked by
disconnecting the wires from the ignition control and
measuring the igniter resistance. A cold igniter should
have resistance in the range of 40 to 75 ohms. Replace the
igniter if resistance is outside of this range.

Probe for voltage at point 10, which is the gas valve
terminal having a brown wire connected to it. As in the
preceding case, this terminal will have voltage present
only during a trial for ignition or during normal operation.
If voltage is not found, the vent limit switch is open,
indicating that the exhaust temperature has been too high.

Normal vent temperature is between 100oF and 140oF.
Excessive temperature might be due to excessive water
temperature or overring of the system. Investigate
water temperature and possible water ow deciency.
Conrm that the heater is equipped for the correct fuel
gas - especially that propane gas is not being provided to a
heater congured for natural gas. To conrm correction of
the problem, re-set the switch by pushing the red button. If

vent temperature is normal and the switch will not allow
operation, replace it.

WARNING

The combustion blower, the igniter and some terminals
of the ignition control utilize 115V power and require
appropriate servicing precautions. Note that wires and
terminals of these components may be “hot” even
when the component is not operating.

4.6 Venturi Combustion Flow System

Verifying proper operation of the comustion ow system
has two (2) aspects - air ow and gas ow. Air ow
is checked by measuring pressures at service ports on
the venturi. Gas ow is checked by evaluating venturi
pressures plus the regulator offset pressure and the gas
orice size.

In a venturi ow system the difference between various
pressures is far more important than their “gauge” value

relative to the room. The gas pressure offset and the
gas orice pressure differential are especially important

concepts. The following sections illustrate these and

related information.

Page 30

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

4.6.1 Pressure Measurement Ports

Figure 33 shows venturi and gas control components
and service port locations. Air ow enters the venturi
from below through the lter box. It is pulled through
a converging section to the throat, where pressure is
reduced substantially. Gas ow is pulled into the throat
through an orice inside the pipe between the throat and
the elbow. Air and gas are combined in the throat and mix
thoroughly as they proceed through the venturi tailpipe to

the burner.

Service ports are provided at three (3) places. On the right
side of the venturi an inlet service port is provided just
above the air lter box. Also on the right side, a throat

service port is provided - at the narrowest section of the

venturi casting. A gas valve service port is provided on the
outlet face (right side) of the gas valve.

To evaluate system operation requires accurate

measurement at these ports. A digital manometer, known

to be accurately calibrated, is ideal. Other instruments

may be used, but the “positive/negative” nature of the
readings must be very clear. Also, gas pressure offset
measurements are at very low levels (0.2” WC) and
the instrumentation must be capable of determining it

accurately.

Connect the positive side of the manometer to the venturi

inlet service port, which is at the bottom on the right
side. Connect the negative side of the manometer to the
gas valve service port, see Figure 35. Turn the heater on.
Until the heater res, the manometer will indicate several
inches of water pressure, but after the gas valve opens, it
will indicate the gas pressure offset, which should be 0.2”
± 0.1” WC - i.e. the gas pressure should be 0.2” WC less

than the pressure at the venturi inlet service port.

If the offset is incorrect, adjust the gas pressure regulator

to the correct pressure. This can usually be done while

the heater is ring, but the burner may go off when the
regulator seal cap is removed. In any case, the offset

pressure measurement must be read when the heater is
operating and the seal cap is rmly in place. Note that a

special tool is required to remove the regulator cap.

Figure 36 shows the gas pressure offset reading when a

U-Tube manometer is used.

4.6.2 Venturi System Checkout

WARNING

When servicing is complete be sure to replace
pressure service port plugs and assure that pressure
switch and equalizer tube connections are unaltered
and firmly in place.

4.6.2.1 Gas Orice Differential

This measurement indicates how much “pull” is available
to move gas through the orice. Turn off the heater

and connect the manometer tubes with the positive side

connected to the gas valve service port and the negative
side to the venturi throat service port as shown in Figure

34. Turn on heater. The manometer will read zero until
the gas valve opens, and then it will indicate the gas
orice differential. The gas orice differential should
be 4.0” ± 0.3” WC for a unit at sea level. See section on
High Elevation Operation for other elevations.

Note the reading and turn off the heater at the control.
Then go on to the next measurement - gas pressure offset.

4.6.2.2 Gas Pressure Offset

Note that an equalizer tube is connected from a port on
the front of the venturi inlet to the vent of the gas valve
regulator. This is a very important component which
allows the regulator to track air pressure even when
abnormal things occur, such as blockage of the combustion
air. Before ring, conrm that this tube and the venturi
pressure switch tubes are in place and rmly connected.

VENTURI

THROAT

SERVICE

PORT

VENTURI

INLET

SERVICE

PORT

GAS VALVE

SERVICE

PORT

Figure 33. Venturi ow system components.

WARNING

In order to discourage incorrect adjustment by
unqualified persons, the gas valve regulator cap
requires a special tool for removal. Contact your
representative about a special tool for this cap.

WARNING

When servicing is complete be sure to replace
pressure service port plugs and assure that pressure
switch and equalizer tube connections are unaltered
and firmly in place.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

4.6.3 Air Flow Investigation

If gas pressure offset is correctly set but gas orice
differential is abnormal, check air ow through the system
per the following sections.

4.6.3.1. Unred Venturi Differential

Pressure.

Determine if air ow through the system is in a normal
range by operating the system with the gas valve turned

off. Connect the positive side of the manometer to the
venturi inlet service port, which is at the bottom on the

right side. Connect the negative side of the manometer
to the gas valve service port of the gas valve, see Figure

37. Turn the gas valve knob to "Off". Turn the heater
on by selecting "Pool" or "Spa" at the control and
adjusting the temperature setting high. The blower will

start immediately and the manometer will indicate the

"unred venturi differential" pressure. This is the pressure
difference created by airow through the venturi. It should
be approximately 4.7" ± 0.3" at sea level. See Section

4.6.5 for other elevations.

ENGLISH

-

+

Figure 34. Gas orice differential measurement.

-

+

Page 31

Note that when the heater is operated with the gas valve
off, it will eventually “lock out” because the ignition
control does not sense ame. Normally there will be
enough time to obtain the measurement, but if necessary,
additional blower operation can be induced by turning the
Flex-Temp control off and then back on again.

If the reading is not normal, attempt to correct it by
blower speed adjustment. Blower speed is adjusted by
turning a special screw on the right side of the motor - at
about 4 o’clock, see Figure 38. A small countersunk hole

is provided there for access to the screw, but is covered by
a thin silver-colored label. Remove or puncture the label.

A small at-blade screw driver is required. It must have
a 3/32” or 2.5 mm (.098”) blade and must be about
4-1/2” long. A jeweler’s screw driver or an electronics
pot adjustment screw driver (with handle cut short if
necessary) can be used. Insert the screw driver through
the hole on the motor housing. Turn it clockwise to
increase the ow and counter-clockwise to decrease.

If blower speed adjustment results in acceptable venturi

differential, shut off the system at the Flex-Temp control

and return to “Gas orice differential” measurement
per Section 4.6.2.2. Make a nal speed adjustment as

necessary to obtain correct gas orice differential.

If the system cannot be made to operate normally by

blower speed adjustment, investigate possible ow
problems per the following sections.

Figure 35. Gas pressure offset measurement.

To Venturi
Inlet Service
Port

To Gas Valve
Service Port

0.2" WC

Figure 36. Gas pressure offset measurement with

U-tube manometer.

Page 32

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

4.6.3.2 Combustion Air Flow

Begin by connecting the negative side of the manometer
to the venturi inlet and leaving the positive side open to
ambient, as shown in Figure 39. In a normally operating
heater, the pressure will be 0.2 to 0.6" WC less than
the ambient pressure. For a model 350 with clean lter
and no combustion air duct, the reading will be near

the middle. If combustion air is ducted to the heater,

the reading will be near the high end. If an excessive
reading is observed (i.e. more negative), ow is probably
restricted by a dirty lter or blockage in the combustion

air supply system. Correct any such problems and verify

normal operation by returning to the venturi system

checkout procedures.

Pressure readings will be less if the heater is located at an
elevation signicantly above sea level.

4.6.3.3 Flow in Heater and Vent

If the venturi inlet pressure reading is normal (or less
than normal), ow may be blocked within the heater or
in the exhaust venting, or the combustion blower may be
operating below standard. To evaluate this, connect the

negative side of the manometer to the collector pressure

tap, as shown in Figure 40, leaving the positive side open
to ambient (this requires a pressure tap with a 1/4" NPT
thread). When the heater is operating, the pressure at this
location should be about 2.8 ± 0.5" WC less than ambient
for a model 350. If a greater reading is observed (i.e.
more negative), ow is restricted within the heater, most
likely at the burner or the heat exchanger. If the reading

is substantially less (i.e. less negative), the combustion

blower is not operating properly or ow is blocked

after the blower, possibly in the vent. Correct any such

problems and verify normal operation by returning to the

venturi system checkout procedures.

Pressure readings will be less if the heater is located at an
elevation signicantly above sea level.

4.6.4 Fuel Gas Type and Gas Orice Size

Zodiac® congures its heaters for natural gas with 0.60

specic gravity and 1035 BTU/Ft3 or for propane gas
with 1.52 specic gravity and 2500 BTU/Ft3. Required
gas orices are listed in the replacement parts list. Consult
your Jandy Pro Series representative if the available gas is

substantially different.

4.6.5 High Elevation Operation

The venturi combustion ow system completely

compensates for installation at elevations other than

sea level. Gas orice changes are not necessary. Unlike

conventional systems with open type burners and positive

pressure regulators, the gas orice differential pressure
is created by the air ow, and it is automatically reduced
when air density decreased. A Hi-E

2 heater commissioned

at sea level will operate at nearly the same air/gas mixture
when operated at higher elevation. Its ring rate will
decrease about 3% per 1000 feet due to the barometric
pressure change.

SPEED
ADJUSTMENT
SCREW

-

+

4.70

Figure 37. Unred venturi differential measurement.

Figure 38. Blower Speed Adjustment.

In servicing a Hi-E

2 heater at high elevation be aware

that the input will be naturally reduced by this amount
and that the differential pressures, as discussed in prior

sections, will also be reduced. Pressure readings at various
elevations will be approximately as follows:

Elevation
Ft (m)
Sea Level

4000 (1220) 3.4 (86) 4.0 (102)

6000 (1830 3.2 (81) 3.7 (94)

8000 (2440) 2.9 (74) 3.5 (89)

10000 (3050) 2.7 (69) 3.2 (81)

The gas pressure offset is determined by the regulator spring adjustment, not air
density. It is not affected by elevation change.

Gas Orifice
Differential

4.0" (102 mm) WC

Unfired Venturi
Differential

4.7" (119 mm) WC

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

ENGLISH

Page 33

4.7 Combustion Condensate

The condensate disposal system of the Hi-E2 pool
heater is quite simple, but must be properly installed
and maintained. See the installation instructions for

information on correct tubing installation. Condensate
drainage should be observed routinely and if necessary,
the ow-ways should be cleaned.

In normal operation, condensate drains from the

condensate collector behind the combustion fan. A 5/8"

I.D. drain tube conducts this water into the condensate

trap/neutralizer, where a “water seal” prevents room
air from being pulled into the system. The water seal of
the trap prevents vent gases from being discharged into
the room. A smaller amount of condensate may drain
from the vent duct and blower. See Figures 12 and 13

in the Condensate Disposal section of the installation
instructions.

During start-up, condensate from the collector cannot

reach the trap unless the water seal is established. This

can be done by pouring water into the trap. The heater
will self-prime by driving water into the vent outlet, from

which it will eventually drain into the trap. However, it is

better to avoid this by manually priming the trap.

If condensate is not draining from the system, check
for improper routing of the drainage tubes or blockage
in the drainage system. Tubing must be installed with a
continuous fall in the direction of condensate ow. Sags
may trap water, defeating the intended operation. Check
for blockage by disconnecting drainage tubes at the
collector and the vent diffuser. Probe these openings with
a tool or wire hook to dislodge any debris.

Limestone gravel neutralizer is required in the condensate

tray to prevent corrosion. This material should be replaced

once a year to assure its continuous benet. Replacement

®

packages are available from Zodiac

or its representatives.

It is normal that a blue/green deposit forms in the
neutralizer. This is caused by very small concentrations of
copper ions present in the condensate. By increasing the

pH of the condensate, the limestone causes this material to

precipitate and be retained in the gravel.

Figure 39. Venturi inlet pressure measurement.

4.8 Major Component Service

The venturi assembly, the burner assembly and the heat

exchanger tube assembly can be replaced if necessary,

but correct procedures and use of only factory-provided
parts are essential to assure satisfactory service and safe

operation. Sealing the system with the specied sealers

®

and gaskets is especially important. Contact Zodiac

Technical Support for information.

Section 5. Capacities and

Dimensions

5.1 General Information

• The Hi-E2 is design certied by CSA International as a
swimming pool heater under ANSI Standard Z21.56 for
use in the United States and Standard CSA-4.7 for use in

Canada.

• The Hi-E2 pool heater is certied for use indoors or
outdoors in the United States.

• The Hi-E2 pool heater is for use with natural or liqueed

petroleum gas. Ratings apply to either fuel.

• De-rating for elevation is not necessary because of the
Hi-E2 heater's special combustion system. Reduced

barometric pressure at high elevations naturally

decreases input and output by approximately 3 percent

per 1000 feet above sea level.

• Heaters require 115V, 60Hz electrical power.

• Working pressure 75 psig.

Figure 40. Collector pressure measurement.

Page 34

Model

No

ENGLISH

With

W

11/16"

341/16"

Input Shipping

Weight

350 31 7/8 350,000 252 lbs.

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

231/2"

63/8"

W

5"

41/

165/8"

10"

16

"

21/8"

35/8"

Vent Collar

35/8"

215/16"

13"

Figure 41. Capacities and Dimensions.

Section 6. Replacement Parts

6.1 Ordering Information

To order or purchase parts for the Jandy Pro Series Hi-E2 pool and spa heater, contact your nearest Zodiac dealer or

distributor. Access the Zodiac web site at www.zodiacpoolsystems.com for the nearest service center. If it cannot supply
you with what you need, contact Zodiac Pool Systems, Inc. Technical Support Department at 800.822.7933.

NOTE To order the correct part, it is important that you state the model number, serial number and type of gas when applicable.

6.2 Parts List

Key Model ORDER
No. Description No. PART NO:

Limestone Gravel 350 R0306200

(condensate neutralizer)
Combustion Air Filter 350 R0308000

1 Base Panel 350 R0347105
2 Frame Support Assembly 350 R0301505
3 Back Panel 350 R0347205
4 Left Side Panel 350 R0347300
5 Right Side Panel 350 R0347400
6 Temperature Control Panel Assy 350 R0347505
7 Door 350 R0347605
8 Inlet/Outlet Header Panel 350 R0347700
9 Right Top Side Panel 350 R0347800
10 Return Header Panel 350 R0347900
11 Front Kick Panel 350 R0348005
12 Top Panel 350 R0348105

Jacket Hardware Kit (Note 1) 350 R0302100
Internal Hardware Kit (Note 1) 350 R0302500

This information is on the rating plate inside the heater.

MAINTENANCE AND SERVICE COMPONENTS

JACKET ASSEMBLY

Key Model ORDER
No. Description No. PART NO:

WATER SYSTEM

13 Heat Exchanger Assy, Complete, Cu 350 R0303805

13

Heat Exchanger Assy, Complete, CuNi 350 R0523705

14 Heat Exchanger Tube Assy, Cu 350 10839405
15 Inlet/Outlet Header 350 R0303900
16 Return Header 350 R0304000
17 Gasket, Header 350 R0304300
18 By-Pass Valve Assembly 350 R0304400
19 Flow Control Cap 350 S0076700
20 By-Pass Valve Gasket 350 R0011400
21 By-Pass Valve Spring 350 R0304500
22 By-Pass Valve Rod 350 R0304900
23 By-Pass Valve Disk 350 R0011500
24 Flange & Gasket Assy, 2" (2) 350 R0055000
25 Flange, 2" 350 10573500+
26 Flange Gasket, 2" 350 S0078000+
27 Flange Sleeve, 2" 350 S0078200+
28 Flange Gasket 1 1/2 - 2" 350 S0078100+

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

ENGLISH

Page 35

Key Model ORDER
No. Description No. PART NO:

29 Pressure Relief Valve, 75 PSI 350 R0040400

 (requireseldsupplied3/4NPTx3"brassnipple)

Heat Exch. Hardware Kit (Note 1) 350 R0319105
Inlet/Outlet Header Hardware Kit (Note 1) R0319300
Return Header Hardware Kit (Note 1) R0319200

COMBUSTION SYSTEM ASSEMBLY

30 Gas Valve 350 R0200100
30A Step Down Regulator 350 R0337300
31 Anti-Rotation Bracket (not shown) 350 R0348500

32 OriceHolder 350 R0320000
33 GasOrice,NAT 350 R0309305
33 GasOrice,LPG 350 R0309405

34 Combustion Air Filter Assembly 350 R0348200
35 Combustion Air Filter 350 R0308000

36 Venturi Inlet 350 R0320305
37 Venturi O-Ring 350 R0320400

38 Venturi Plenum 350 R0320500
39 Venturi/Tailpipe Gasket 350 R0348300
40 Mixing Chamber/Tail Pipe Assy 350 R0320600
41 Mixing Chamber/Burner Gasket 350 R0348300

42 Burner Assembly 350 R0305905
43 Burner/Comb. Chamber Gasket 350 R0305805

44 Combustion Chamber Assembly 350 R0305105
45 Refractory Tile Set 350 R0305305
46 Sight Glass Assembly 350 R0305400
47 Combustion Chamber Strip Set 350 R0213105

(not shown)
48 Combustion Chamber/Coll. Gasket 350 R0305705
Venturi Hardware Kit (Note 1) 350 R0322200

Mixing Chamber Hardware Kit (Note 1) R0322100
Burner Hardware Kit (Note 1) 350 R0319405

EXHAUST ASSEMBLY

49 Blower/Collector Gasket 350 R0308700
50 Combustion Blower 350 R0308200
51 Blower/Vent Duct Sleeve 350 R0308600
52 Blower/ Vent Duct Clamp 350 R0308800
53 Vent Duct Assembly 350 R0303100

54 Vent Duct/Heater Top Gasket or 350 R0309100
Heater Top/Indoor Vent Collar Gasket

55 Heater Top/Outdoor 350 R0309500
Exhaust Grill Gasket
56 Outdoor Exhaust Grill 350 R0348400
57 Indoor Vent Collar (not shown) 350 R0307900
58 Condensate Trap Assembly 350 R0303300
59 Limestone Gravel 350 R0306200
60 Condensate Trap Cover 350 R0213300

Key Model ORDER
No. Description No. PART NO:

ELECTRICAL COMPONENTS AND CONTROLS

61 Transformer 350 R0061100
62 In-Line Fuse Holder Assembly 350 R0325600
63 Ignition Control 350 R0202900
64 Wire Harness, Ignition Control 350 R0302700
65 Igniter Assembly 350 R0016400
66 Igniter Gasket 350 R0205300
67 Terminal Block 350 R0301900
68 High-Limit Switch Set 350 R0322700
69 High-Limit Switch, 135°F 350 R0302400
70 High-Limit Switch, 150°F 350 R0302300
71 High-Limit Switch Wire Harness 350 R0322600
(not shown)
72 Pres. Switch & Siphon Loop Assy 350 R0322900
73 Pressure Switch, 2 PSI 350 R0013200
74 Pressure Switch Siphon Loop 350 R0307800
75 Temp. Control Assy, Electronic 350 R0011700
76 Temp. Sensor (not shown) 350 R0011800
77 Temp. Sensor Gasket 350 E0116400
78 Temp. Sensor Plastic Sleeve 350 10444900+
79 Temp. Control Knob 350 R0010700
80 Pool/Spa Selector Knob 350 R0099900
81 “Temp-Lok” Disc 350 10583100+
82 Temp. Sensor Retainer Clip 350 10716701
(not shown)
83 Differential Pressure Switch 350 R0302000
84 Differential Pres. Switch Bracket 350 R0302200
85 Exhaust Vent Limit Switch 350 R0309000
86 Burner High Limit Switch 350 R0319700
87 Combustion Blower Wire Harness 350 R0308100

OPTIONAL COMPONENTS

High Temp. Silicone Sealant 350 R0322800

 HeatExchangeBafes 350 R0410100

4" Venting Connector, Hi-E2 350 R0444900

NOTES:

1. All hardware sets contain all pieces necessary for
assembly, including gaskets. Not shown.

2. Gaskets and hardware are included in all kits that
involve the removal of a gasket as part of the procedure
to replace a part.

Venturi Hardware Kit (Note 1) 350 R0322200
Mixing Chamber Hardware Kit (Note 1) R0322100

Page 36

ENGLISH

6.3 Exploded View

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

12

56

55

41

40

86

83-84

42

43

46

30A

32,33

35

30

34

10

38

13

16

48

39

37

36

14

17

68-70

44

65,66

45

3

4

6

29

9

54

53

51,52

50

18-23

15

24-28

49

85

87

1

75-81

7

64

61

2

8

5

67

58-60

11

62

72-74

63

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

NOTES

ENGLISH

Page 37

Page 38

ENGLISH

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

NOTES

Jandy® Pro Series, Hi-E2® and Hi-E2R Gas-Fired Heater | Installation & Operation Manual

NOTES

ENGLISH

Page 39

Zodiac Pool Systems, Inc.
2620 Commerce Way, Vista, CA 92081

1.800.822.7933 | www.jandy.com

ZODIAC® is a registered trademark of Zodiac International, S.A.S.U., used under license.
All other trademarks referenced herein are the property of their respective owners.

©2017 Zodiac Pool Systems, Inc. H0205000_REVL