Astral Pool Genus IV JX Series User manual

30/07/2010
INSTALLATION AND
OPERATING INSTRUCTIONS
Melbourne: 03 8796 8600 Gold Coast: 07 5552 2600 Perth: 08 9350 2600
Sydney: 02 9853 2100 Townsville: 07 4750 3100 [email protected]
Brisbane: 07 3308 5400 Adelaide: 08 8152 7600 www.astralpool.com.au
Bolero ND
Cleaner
INSTALLATION AND OPERATING INSTRUCTIONS I INSTALLATION AND OPERATING INSTRUCTIONS
JX Series Pool & Spa Heater
Genus IV
Outdoor Unit Indoor Unit

Inst.212 JX Series Pool & Spa Heater V07.10
2
INDEX
Introduction
Introduction ................................................................................................................................3
Notice to Installers ....................................................................................................................3
Safety Rules...............................................................................................................................3
Operation
Lighting Instructions..................................................................................................................4
Operating Instructions..............................................................................................................4
Turning Gas Off.........................................................................................................................4
Chemical Balance.....................................................................................................................4
Corrosion Prevention in Heaters.............................................................................................5
Digital Thermostat Operation ..................................................................................................6
Fault Indication..........................................................................................................................7
Maintenance
Maintenance Instructions.........................................................................................................8
Energy saving Tips...................................................................................................................8
Winter Operation.......................................................................................................................8
Installation
Installation Instructions.............................................................................................................9
Flow Rates.................................................................................................................................9
Water Connections ...................................................................................................................9
Plumbing Diagram ....................................................................................................................9
Heater Dimensions ................................................................................................................ 10
Indoor Installation................................................................................................................... 10
Ventilation (Outdoor Units) ................................................................................................... 10
Clearances.............................................................................................................................. 10
Electrical Connection............................................................................................................. 10
Flue Installation...................................................................................................................... 11
Gas Connection...................................................................................................................... 12
Pressure Switch Adjustment................................................................................................. 12
…………………………………………………………………………………………………...13
Starting the Heater................................................................................................................. 13
Testing Burner Pressure....................................................................................................... 14
Gas Conversion
Burner Conversion................................................................................................................. 15
Troubleshooting
Fault Finding and Remedies................................................................................................. 16
Wiring diagram
JX Series Wiring Diagram..................................................................................................... 17
Warranty
Terms and Conditions........................................................................................................... 18

Inst.212 JX Series Pool & Spa Heater V07.10
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INTRODUCTION
Congratulations on your purchase of a Hurlcon JX Series Pool and Spa Heater. Proper installation and service of
your new heating system and correct chemical maintenance of the water will ensure years of enjoyment. The JX
Series Heater is a compact lightweight and efficient gas fired pool and spa heater. It is equipped with features that
take advantage of new technology developed exclusively by Hurlcon.
The Hurlcon Pool Heater can safely be connected to PVC pipe and has an induced draft fan assisted flue for high
efficiency. It accepts high flow rates which help the heater run cooler, giving greater performance and longer life.
In addition, the Hurlcon Pool Heater is equipped with electronic start up and an accurate electronic thermostat to
ensure ease of use and accurate temperature control. The electronic display tells at a glance the operational
status of the heater and it is Genus IV Controller compatible.
The JX indoor pool and spa heater uses a co axial flue system avoiding the need for room ventilation. The heater
must be installed with the approved flue system supplied with the heater.
Note:
The appliance is not intended for use by young children or infirm person without supervision. Please ensure that
young children are supervised to ensure that they do not play with the appliance.
NOTICE TO INSTALLERS
This appliance must be installed by an authorized person.
This appliance must be installed in accordance with the installation instructions, local gas fitting regulations, the
AGA Installation Code AS5601 and any other relevant statutory authorities.
Refer to data plate for details of gas type, gas consumption and burner pressure.
SAFETY RULES
1. Spa or hot tub water temperature should never exceed 40˚C.
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 38˚C can cause foetal damage during the first three
months of pregnancy.
4. Before entering the spa or hot tub, the user should check the water temperature with an accurate
thermometer, spa or hot tub thermostats may err in regulating water temperatures by as much as 2˚C.
5. Persons with a medical history of heart disease, circulatory problems, diabetes or blood pressure
problems should obtain their physician’s advice before using spas or hot tubs.
6. Persons taking medications which induce drowsiness, such as tranquillisers, antihistamines or
anticoagulants, should not use spas or hot tubs.
WARNING: Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the
appliance. Do not use this heater if any part has been under water.

Inst.212 JX Series Pool & Spa Heater V07.10
4
LIGHTING INSTRUCTIONS
For your safety –read before lighting
This appliance is equipped with an ignition device which automatically lights the burner. Do not try to light the
burner by hand.
This appliance must be tested for correct operation after installation by the installer.
BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS. Do not try to light any appliance. Do not touch any electrical switch. Do not
use any telephone in your building. Immediately call your gas supplier from a neighbour’s house.
DO NOT PLACE ARTICLES ON OR AGAINST THIS APPLIANCE
DO NOT USE OR STORE FLAMMABLE MATERIALS NEAR THIS APPLIANCE
DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN OPERATION.
OPERATING INSTRUCTIONS
1. STOP! Read the safety information above.
2. Turn off electric power to appliance.
3. This appliance is equipped with an ignition device which automatically lights the burner. Do not try to light
the burner by hand.
4. Wait five minutes for gas to clear. If you then smell gas, STOP! Refer to instructions above.
5. Turn filtration pump on.
6. Turn on power to the heater and press the pool/spa button to select pool or spa mode.
7. Set thermostat to desired setting and the ON/OFF switch to turn the heater ON.
8. The heater will ignite in around 20 seconds.
9. If the appliance will not operate, repeat instructions 5 to 7 above. If the appliance still does not ignite, call
your service technician.
TO TURN GAS OFF TO APPLIANCE
1. Turn off all electrical power to the appliance.
2. Turn off gas tap in gas line prior to heater.
3.
CHEMICAL BALANCE
It is imperative that correct chemical balance be maintained in your pool and spa water, otherwise corrosion of
your heater may occur. Corrosion of the heat exchanger voids warranty. Your local pool shop specialist or
spa retailer can advise correct chemical balance. Your water should be checked and maintained regularly by a
pool water professional. As a guide the following parameters may be used.
pH 7.6 to 7.8
Total Alkalinity 80 to 120 ppm
Calcium Hardness 150 to 250 ppm
Salinity 4000ppm max. Excessive salt can damage your heater.
You should test your water chemical balance at least on a weekly basis.
Excessive sanitiser can damage your heater. Chlorine should not exceed 3 ppm and bromine should not exceed 5
ppm. Salt chlorinators, especially when used on spa pools or indoor or covered pools, can easily produce
excessive chlorine levels which will damage the heater internals.

Inst.212 JX Series Pool & Spa Heater V07.10
5
CORROSION PREVENTION IN HEATERS
All pool and spa heaters use copper or copper nickel to make their heat exchangers as it is the most efficient
material in transferring heat from the combustion chamber into the water. The typical life expectancy of a well
maintained pool/spa heater is between 8 and 15 years.
Often the same heat exchanger used in residential and commercial boilers and hot water systems will have a life
expectancy of 20 years.
The addition of sanitisers (Chlorine, Bromine etc) and other water balancing and conditioning chemicals can
increase the rate of wear and tear on the heat exchanger and associated parts in your heater.
There are three most common reasons for heat exchanger corrosion which can be avoided with a little care and
attention.
1. Excessive Sanitiser. This means too much Chlorine or Bromine in the water. Be careful, if the level of
Chlorine or Bromine is excessively high your test kit (and the pool shops) may not read accurately or indeed may
show a nil reading. Any time a salt chlorinator is operating for extended periods, (when heating the swimming pool
from cold), particularly if the weather is overcast or the pool enclosed or covered, the Chlorine level may exceed
normal levels. When heating a Spa Pool, turn the chlorinator down or off for the duration of the heating period.
2. Out of balance water. The water balance is a combination of pH, total alkalinity, Calcium hardness and
temperature. These measurements must be at the correct levels to maintain balanced water and effective
sanitation of your pool. Balanced water will help prevent corrosion of your heater. Balanced water should be
between 7.2 - 7.8 pH.
3. The addition of acid to lower pH. Acid must always be added in small quantities and spread over the
pool surface evenly, not added in to the skimmer. Do not add a litre at a time, add a cupful each day to lower your
pH.
4. Never add chemicals to skimmer - dilute and circulate as far away as possible from skimmer.
If you have a salt chlorinated INDOOR pool or COVERED pool be very careful of the level of Chlorine being
produced. If you use a salt chlorinated spa be very careful of the level of Chlorine as the Chlorinator is usually
sized for the pool and therefore should be switched off when heating the spa. Leaving the chlorinator on can
raise the chlorine level very rapidly in a small volume of water.
These comments are intended as a guide only and are not definitive answers or recommendations on pool water
chemistry. Hurlcon’s intention is to provide a little understanding of the potential problems of water chemistry and
the dangers of corrosion to heaters (and other pool equipment and fittings).
You should always seek the advice of your local pool shop professional and provide them with as much
information and feedback as possible when analysing your pool and spa water and obviously be sure to tell them
you have a heater connected to the system even though it may not be in constant use.
YOUR WATER SHOULD BE ADJUSTED & BALANCED PRIOR TO ANY CORRODED PARTS BEING
REPLACED.

Inst.212 JX Series Pool & Spa Heater V07.10
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DIGITAL THERMOSTAT OPERATION
DESCRIPTION
The sophisticated digital thermostat provides temperature read out, set point temperature and operating status of
the heater. The electronic display indicates the operational status of the heater and any fault conditions.
TEMPERATURE DISPLAY
The temperature display indicates water temperature in the inlet of the heater. Therefore the pump must be
operating for an accurate pool or spa water temperature to be displayed.
Comfortable pool temperature is between 26˚C and 30˚C. Normal spa temperature is between 36˚C and 38˚C. To
select your desired temperature press the up or down button repeatedly until the desired temperature is reached.
To prevent rapid cycling of the heater, the thermostat has an inbuilt time delay which prevents the heater from
turning on for two minutes after the set point has been reached. If the time delay is activated, the symbol “L” will
be displayed. This is part of normal operation.
The thermostat can be set to temperatures between 10˚C and 40˚C. It also incorporates several safety features
including a 45˚C high limit function to prevent overheating of the pool or spa. On simultaneous shut down of the
circulating pump and heater, the water within the heater may exceed 45˚C for a short period. If the pump and
heater are restarted during this period, the thermostat will go into a standby mode and prevent the heater from
relighting until the temperature within the heater has dropped below the set temperature.
Should the thermostat fail to stop the heater at the set point or at 40˚C, there are three temperature limiting safety
devices designed to lock the heater out and prevent further heating. A lock out condition is indicated by the
symbols F1 or F2. To reset a lock out condition, turn the power off for five seconds.
>
<
HURLCON
HURLCON
○
I
ON/OFF POOL/SPA WARM COOL

Inst.212 JX Series Pool & Spa Heater V07.10
7
FAULT INDICATION
Under fault conditions the thermostat will display a set of alpha numeric symbols to indicate the status of the
heater. The meaning of each symbol and action to be taken are listed as follows:
SYMBOL MEANING ACTION
Temp Display Unit has power. No action.
F0 Heater locked off, thermistor If water temperature reads
wire disconnected or water greater than 0C, phone for
at 0C (freeze conditions). service.
F1 Thermostat reads greater Allow water to cool,
than 45C. turn heater off then on again.
F2 Mechanical Hi Limit greater Allow water to cool,
than 45C. turn heater off then
on again.
F3 Thermistor fault Phone for Service
LHeater locked out on time No action. Heater will
delay for 2 minutes. Automatically reset after
time delay.
Or switch off then on again
for immediate ignition.
Pump operating & sufficient No action.
water pressure to operate heater
Thermostat calling for heat. No action.
Electronic Flame Supervision
operating.

Inst.212 JX Series Pool & Spa Heater V07.10
8
MAINTENANCE
It is recommended that you check the following at least every six months and at the beginning of every swimming
season.
1. Examine the Flue outlet & Air Intake vents. Make sure there are no obstructions to the flow of air to, or
flue products from, the appliance.
2. Keep the heater area clear and free of combustibles and flammable liquids. Chlorine should not be stored
in the vicinity of the heater. Chlorine vapours, when drawn through a heater, can rapidly cause corrosion
of the heat exchanger.
3. Keep the heater area free from garden refuse and debris. This will help prevent insects nesting in the unit
and ensure extended life and reliability of your heater.
ENERGY SAVING TIPS
1. If possible, keep pool or spa covered when not in use. This will not only cut heating costs, but will also
keep dirt and debris from settling in the pool and conserve chemicals.
2. Reduce pool thermostat setting to 28˚C or lower. This is accepted as a comfortable and healthy swimming
temperature.
3. Use an accurate thermometer.
4. Set timeclock to start filtration and circulation system no earlier than daybreak. The pool loses less heat at
this time.
5. For pools that are only used on weekends, it is not necessary to leave the thermostat set at 28˚C. During
the week, lower it by an amount that can easily be achieved in one day (generally 5˚C to 8˚C).
6. During the winter or while on vacation, turn the heater off.
7. Set up a regular program of preventative maintenance for the heater each new swimming season. Check
heat exchanger, controls, burner operation etc.
WINTER OPERATION
If the pool won’t be used for a month or more, turn the heater off at the thermostat switch and turn the temperature
down to 10 degrees. For areas where there is no danger of freezing, water should circulate through your heater all
year long even though you are not heating your pool.
Where freezing is possible, it is necessary to drain the water from the heater. This may be done by loosening the
inlet or outlet barrel union. If the heater is below water level, isolate it from the pool first by closing shut off valves
before and after the heater.
CAUTION: If the heater has been drained for freezing conditions, do not turn on until the system is circulating
water.

Inst.212 JX Series Pool & Spa Heater V07.10
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INSTALLATION
THIS APPLIANCE MUST BE INSTALLED BY AN AUTHORISED PERSON. Refer to heater data plate for
specifications of gas type, gas consumption, burner pressure and water pressure.
This appliance must be installed in accordance with local regulations and A.G.A. Installation Code AS5601.
This appliance must be tested for correct operation after installation by the installer.
INDOOR model units are suitable for indoor installation only.
OUTDOOR model units are suitable for outdoor installation only.
INDOOR units must be installed with the approved coaxial flue system only. Flue lengths and bend quantities
must not exceed the flue maximum installation guides.
FLOW RATES
The Hurlcon Pool Heater requires a minimum of 150 litres per minute flow and the maximum permissible flow rate
is 450 litres per minute. For flow rates in excess of 450 litres per minute, an external by-pass valve must be fitted.
WATER CONNECTIONS
The heater should always be installed after the pump and filter. The water connections are located on the left
hand side of the heater on the underside. The inlet and outlet are clearly marked. Water connections require 40
mm PVC glue in plumbing.
All automatic sanitising devices must be installed after the heater and in such a way that the sanitiser cannot enter
the heater without first mixing with the water in the pool or spa. Sanitisers that are connected prior to the heater
will void heater warranty.
The Hurlcon Pool Heater incorporates a fan assisted flue and is suited for outdoor installation only.
PLUMBING DIAGRAM
To Solar
From Solar
From Pool
Pump
Filter
JX Heater
Chlorinator
Return to Pool
Heater Diagram
1. Plumbing in high pressure 40mm or 50mm PVC pipe
2. Connection to heater in Class 12 or higher
3. All automatic Chlorinators or Sanitisers Must be installed after heater
PVC Piping

Inst.212 JX Series Pool & Spa Heater V07.10
10
HEATER DIMENSIONS
CLEARANCES
The heater must not be installed against any combustible surface. Clearances must comply with AS5601.
Clearances from surfaces are:
Indoor Heater
Outdoor Heater
Front
500mm
500mm
Both sides
50 mm
300 mm
Above
300mm
300mm
Below
900mm
900mm
ELECTRICAL CONNECTION
The heater is supplied with a standard 10 amp 3 pin plug for connection to a 240V 10 amp GPO. The heater
incorporates a 240/24 VAC transformer which supplies power to the control circuit. All pool or spa equipment
connected to mains power should be protected by an RCD circuit breaker. It is recommended, where possible that
the heater is connected to the same time clock or power supply as the circulating pump. If the supply cord is
damaged, it must be replaced by the manufacturer or its service agent or a suitably qualified person in order to
avoid a hazard.
Model
Dimension A
Dimension B
Dimension C
JX 130 INDOOR
520mm
300mm
755mm
JX 160 INDOOR
650 mm
300mm
755mm
JX 130 OUTDOOR
520mm
300mm
755mm
JX 160 OUTDOOR
650 mm
300mm
755mm
A
C
88.0
B
185.0
INDOOR MODEL ONLY

Inst.212 JX Series Pool & Spa Heater V07.10
11
MAXIMUM FLUE INSTALLATION LENGTHS
(FOR INDOOR MODELS ONLY)
THIS TERMINAL MUST ALWAYS VENT DIRECTLY OUTDOORS
The heater is supplied with a spigot connection which enables fitting to the approved coaxial flue system. Because
the appliance draws its own combustion air from outside using the outer skin of the flue, no ventilation
requirements are needed for the heater.
Only the approved flue system shall be used with this appliance. Use of other flue systems will fail to meet AGA
installation codes and void warranty.
The coaxial flue sizes are 75mm inner and 125mm diameter outer.
Ensure fluing is securely fixed.
Flue lengths must not exceed the maximum lengths shown below or warranty will be void.
DO NOT place objects near or on flue.
DO NOT dry objects on the flue.
The JX series heaters can be installed as per the following.
The maximum flue runs are as shown. Shorter flue lengths can be run with no modifications to the appliance.
A maximum straight flue length of 3.6m + cowl can be installed. For each 90deg bend installed deduct 0.9m from
the allowable flue length.
For variations to the following please contact your nearest Hurlcon office.

Inst.212 JX Series Pool & Spa Heater V07.10
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GAS CONNECTION
The gas connection is on the base of the heater. A 12mm F.I. connection on the JX130 & 20mm F.I. connection on
the JX160 is provided for gas line connection. An approved manual shut off valve must be installed in the gas
fitting line before the heater and should be sized the same as the gas fitting line to prevent excessive pressure
drop in the gas pipe.
The gas fitting line should be installed by an authorised person and comply with local regulations and A.G.A. code
AG 601. The gas line from the meter will usually be of a larger size than the gas inlet connection. Therefore a
reduction to the heater connection fitting will be necessary. The reduction should be as close to the heater as
possible.
Before using the heater, test all connections for leaks using soapy water.
The heater gas valve has a built in pressure regulator and ⅛” pressure test point. On starting the heater, a
manometer must be used and burner pressure checked against the heater data plate. The gas valve regulator
may need to be adjusted to correct manifold pressure. Incorrect burner pressure may void warranty.
PRESSURE SWITCH ADJUSTMENT
The Hurlcon Pool Heater incorporates a water pressure switch which allows the burner to operate only when the
circulating pump is operating.
It is imperative that the following be undertaken by the person who is commissioning (first starting) your pool or
spa heater. On initial start up of the heater it may be necessary to adjust the water pressure activation switch.
This switch is located behind the lower panel on the front of the unit and is connected to the water manifold. The
pressure switch is designed to allow operation of the heater only when the circulating pump is turned on and there
is sufficient water flow through the heater. It must shut the heater down immediately the pump is switched off.
To check the operation of the switch:
1. Connect the heater to mains power supply. The thermostat should not yet display “θ”.
2. Turn on pump. The thermostat should now display “θ”.
3. Turn pump off. The thermostat should no longer display “θ”.
4. If display does not respond in this way, adjust the pressure switch as detailed below. If display responds
correctly, perform a final check with the heater operating.- See the section below titled “Starting the heater”
To adjust pressure switch:
1. Connect the heater to mains power supply.
2. Turn pump off
3. Locate Pressure Switch by accessing from underside of unit.
4. Slide toggle on side of pressure switch up to allow knurled wheel to be turned.
5. Turn knurled wheel anti-clockwise (as viewed from above) until “θ” is displayed
6. Turn knurled wheel clockwise until “θ” disappears.
7. Continue to wind clockwise for a further half turn (180 degrees).
8. When the switch is correctly set, slide the toggle down to lock the knurled wheel in position.
WARNING: If the pressure switch cannot be adjusted correctly, DO NOT OPERATE THE HEATER, contact
Hurlcon or an Authorised Service Agent for advice.

Inst.212 JX Series Pool & Spa Heater V07.10
13
1. Perform a final check with the heater operating.- See the section below titled “Starting the heater”.
STARTING THE HEATER
1. Purge gas line of any air and wait five minutes for gas to clear.
2. Turn power to unit on. Thermostat should now operate and indicate water temperature.
3. Turn circulating pump on.Thermostat should display “θ” to indicate water flow.
4. Set thermostat to “ON” and press the “^” button repeatedly until set temperature is greater than water
temperature. Thermostat should now display “ ”.
5. After a few seconds, the fan will start. After approximately a 20 second delay the main burner will ignite.
6. While leaving the heater on, turn the pump off and on at 20 second intervals, six times. Make sure the
heater turns off and on each time. If it does not, adjust the pressure switch as detailed above.
It is imperative that the heater is installed so that it does not operate when the circulating pump stops.
Recommended methods to achieve this are:
a) Correct adjustment of internal pressure switch. Ensure heater does not turn on two or three minutes
after circulating pump is turned off.
b) Interlock power supply of circulating pump and heater so that if timer or power turns circulating pump
off, heater is also turned off.
c) Installation of an external flow switch may be preferred under certain installations where internal
pressure switch does not turn heater off when circulator stops.
Pressure Switch Adjustment
Slide toggle
up to allow
adjustment
Turn wheel in
direction of
arrow to
decrease
pressure
required to
operate heater

Inst.212 JX Series Pool & Spa Heater V07.10
14
TESTING BURNER PRESSURE
1. Set thermostat to “OFF”.
2. Open front door and set up manometer
3. Remove screw from ⅛” brass test point located on outlet side of gas valve
4. Connect manometer tube to test point
5. Set thermostat to “ON” and wait for burner to ignite
6. Once burner has ignited, the manometer must indicate the nominal burner pressure listed below.
7. To adjust gas valve regulator, remove regulator adjustment cap and, using a screwdriver, turn plastic bush
clockwise to increase, anti-clockwise to decrease burner pressure.
8. When burner pressure is correctly set, set thermostat to “OFF”.
9. Refit test point screw and fibre washer.
10. Refit regulator adjustment cap.
Maximum inlet gas pressure is:
Natural Gas 3.5 kPa
Propane Gas 3.5 kPa
Nominal burner pressure is:
JX 130
JX 160
Natural Gas
0.92 kPa
0.90 kPa
Propane Gas
2.60 kPa
2.60 kPa
Gas Specifications
Please refer to heater data plate located on the appliance.
The installer must test the appliance for correct operation after installation, prior to handing over to the customer.
This appliance must be installed in accordance with the installation instructions, local gas fitting regulations, the
AGA Installation Code AS5601/AG 601 and any other relevant statutory authorities.
Gas Specifications
Natural Gas JX130 JX160
Capacity input MJ/h 105.5 140
Output kW/h 24.2 35
Number of Burners 14 20
Injector Diameter of Main Burners 1.25mm 1.25mm
Burner Pressure (kPa) 0.92 0.90
Hourly Gas Consumption per Burner MJ/h 7.5 7.5
ULPG JX130 JX160
Capacity input MJ/h 95 135
Output kW/h 20.9 31.6
Number of Burners 14 20
Injector Diameter of Main Burners 0.79mm 0.79mm
Burner Pressure (kPa) 2.0 2.0
Hourly Gas Consumption per Burner MJ/h 6.78 6.75

Inst.212 JX Series Pool & Spa Heater V07.10
15
GAS CONVERSION
BURNER CONVERSION
1. Turn off gas supply to unit.
2. Turn off power supply to pump and heater.
3. Remove front access doors
4. Disconnect gas supply tube from burner manifold.
5. Remove burner inspection bracket and ignitor.
6. Remove the four Phillips head screws securing the burner at the end of the manifold tube to combustion
chamber support angles.
7. Slide burner out.
8. Remove burner injectors and replace with desired gas type injectors.
9. Remove regulator screw cap from top of gas valve
10. Turn plastic plug anti-clockwise until fully removed and withdraw spring.
11. Insert spring for desired gas type and re-install plastic plug.
12. Re-install burner assembly and panels then reconnect gas supply.
13. Check gas system for leaks.
14. Commence lighting procedure as described above.
15. Adjust burner pressure as described above.
16. NOTE: It is imperative that all shields are refitted for correct burner operation and combustion, incorrect re-
assembly could void warranty
JX 130
GAS TYPE
INJECTOR SIZE
BURNER PRESSURE
NATURAL
1.25 mm
0.92 kPa
PROPANE
0.79 mm
2.60 kPa
JX 160
GAS TYPE
INJECTOR SIZE
BURNER PRESSURE
NATURAL
1.25 mm
0.90 kPa
PROPANE
0.79 mm
2.60 kPa

Inst.212 JX Series Pool & Spa Heater V07.10
16
TROUBLESHOOTING
HEATER WILL NOT LIGHT
Possible cause
Remedy
Automatic ignition system fails
Check if power to heater is turned on and pump
is in operation
Fan runs but burner will not ignite
Blocked flue inlet or outlet
Pump not running
Start pump
Pump airlocked
Check for leaks
Filter dirty
Clean filter
Pump strainer basket clogged
Clean strainer
Defective gas control
Shut off gas supply and call for service
Thermostat turned off
Turn on
Set temperature lower than water temperature
Increase set temperature
Water too hot-fault condition displayed
Refer to fault indication table
HEATER SHORT CYCLING (RAPID ON AND OFF OPERATION)
Possible cause
Remedy
Insufficient water flow
Clean filter and pump strainer
Faulty air pressure switch
Call for service
Flue / Heat Exchanger Blocked
Call for Service
Defective high limit or thermostat
Repair or replace
HEATER MAKING KNOCKING NOISES
Possible cause
Remedy
Heater operating after pump has shut off
Shut off gas supply and call for service
Heat exchanger scaled
Shut off gas supply and call for service
If the heater cannot be made to perform correctly, please contact the Hurlcon office closest to you.
For VIC: Phone [phone]
NSW : Phone [phone]
QLD: Phone [phone]
SA: Phone [phone]
WA: Phone [phone]
For all other areas, please contact our Victorian office.

Inst.212 JX Series Pool & Spa Heater V07.10
17
JX SERIES WIRING DIAGRAM
 

Inst.212 JX Series Pool & Spa Heater V07.10
18
Maintenance of your heater
Maintenance Schedule: You new product incorporates moving parts and withstands high velocity water
with chemicals in it. Some of these parts will wear in the normal course of use and require regular checks
and maintenance. Performing these checks and maintenance will identify parts that have worn and
require repair/replacement before further serious damage is sustained. A small amount of regular care
and attention to your pool equipment will help ensure long life and trouble free performance.
Timing
Maintenance Check
Service action (if required)
Monthly
Operate heater for 15 min to clear
residues and ensure correct operation
Start circulation pump and turn heater
on, leaving to run for a few minutes. This
will clear flue passages and keep
components working properly
Three Monthly
Check inlet/outlet o’rings for leaks
Isolate Pump, turn power off, clean and
grease O rings or replace if necessary
Three Monthly
Check surroundings for leaves, debris
and flooding
Remove debris from around the base of
the hearer and rectify if any flooding.
Clear vegetation from around the flue
Annually
Check gas pressures
Call Service technician to perform annual
gas checks and routine maintenance
Important note: Regular maintenance is important to ensure long life and trouble free performance of your pool
equipment. If unable to perform the maintenance yourself, contact your local AstralPool office who will arrange a
trained service technician to perform the maintenance for you.
Record your Equipment details here for quick reference:
Model No.: ____________________________
Serial No.: ____________________________

Inst.212 JX Series Pool & Spa Heater V07.10
19
FIVE YEAR PRO RATA WARRANTY
Hurlcon cover your pool and spa heater with a limited 5 year Pro Rata warranty against defective materials and
workmanship from the date of purchase (plus 30 days to allow for installation).
1. The cabinet, refractory insulation and combustion chamber are covered for a period of five years (plus 30
days to allow for installation).
2. The heat exchanger, burners, inlet and return water headers are covered for a period of two years (plus 30
days to allow for installation).
3. Components such as gas valve, combustion fan, thermostat, pilot, wiring, gaskets and all other parts are
covered for a period of one year (plus 30 days to allow for installation)
The warranty includes 12 months in field labour costs where the heater is installed in a capital city metropolitan
area or within a 20 km radius of an Authorised Hurlcon Service Agent.
Like your motor vehicle, your new heater requires periodic service and maintenance to keep it operating in top
condition and at maximum efficiency. An annual service by one of our qualified service technicians is highly
recommended.
Limitations
All warranties only apply if the heater is installed and operated in complete compliance with the installation and
operating instructions. The warranty shall not apply to any heaters or parts which have been subject to accident,
negligence, alteration, abuse or misuse.
Corrosion of the heat exchanger is caused by improper water chemical balance and will void all warranties. Refer
to Installation and Operating Instructions for water balance guide. Hurlcon assumes no liability for consequential
damages of any kind. In field labour warranty is applicable in capital city metropolitan areas and within a 20 km
radius of Hurlcon Authorised Service Agents. Should you request a warranty service call and the problem is
diagnosed as non-warrantable, you will be charged for a diagnostic service call plus any parts and labour required
to repair the heater. No person is authorised to make any representations on behalf of Hurlcon.
Commercial Installations
On commercial installations, such as health clubs, motels/hotels and hydrotherapy facilities, parts and in field
labour warranty (within capital city metropolitan areas or 20 km radius of Authorised Service Agents) is 6 months
from the date of purchase plus 30 days.

Inst.212 JX Series Pool & Spa Heater V07.10
20
ASTRALPOOL Pty. Limited. A.B.N. 97 007 284 504
www.astralpool.com.au email: s[email protected]
Information and specifications subject to change without notice.
Victoria: New South Wales: Queensland: South Australia: Western Australia: Gold Coast: Townsville:
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INSTALLATION AND OPERATING INSTRUCTIONS I INSTALLATION AND OPERATING INSTRUCTIONS