Astral Pool HX70 User manual

14/11/2013
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 [e-mail]
Brisbane: 07 3308 5400 Adelaide: 08 8152 7600 www.astralpool.com.au
Bolero ND
Cleaner
INSTALLATION AND OPERATING INSTRUCTIONS I INSTALLATION AND OPERATING INSTRUCTIONS
HX Series Pool & Spa Heater
HX70 & HX120
Genus IV
Rainbow Pool Products
PO Box 2388, Mansfield Qld 4122
Telephone STD 61-7-3849 5385
Facsimile STD 61-7-3849 5384
Email: [email protected]
Web: www.rainbowpoolproducts.com.au

Inst174 HX Series Pool & Spa Heater V07.10
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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 .................................................................................................................... 10
……………………………………………………………………………………………11
Clearances ...............................................................................................................................11
Electrical Connection............................................................................................................. 12
Gas Connection...................................................................................................................... 12
Pressure Switch Adjustment................................................................................................. 12
………………………………………………………………………………………………… 13
Starting the Heater................................................................................................................. 13
Testing Burner Pressure ....................................................................................................... 13
Gas Conversion
Burner Conversion ................................................................................................................. 14
Troubleshooting
Fault Finding and Remedies ................................................................................................ 15
Wiring diagram
HX Series Wiring Diagram.................................................................................................... 16
Warranty
Terms and Conditions ........................................................................................................... 17

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INTRODUCTION
Congratulations on your purchase of a Hurlcon 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 HX 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 a built in balanced flue for outdoor
installation. It accepts high flow rates which help the heater run cooler, giving greater performance and long 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.
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
Standards Australia 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.

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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.
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 NO 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 to clear out any gas. 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 10 seconds.
9. If the appliance will not operate, follow 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.
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.

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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 him with as much information
and feedback as possible when analysing your pool and spa water and obviously be sure to tell him 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.