Astral Pool Viron Series User manual

Viron Series Pool
& Spa Heater
INSTALLATION AND OPERATING INSTRUCTIONS
EXTERNAL INSTALLATION MODELS
Astral Pool Pty. Limited. A.B.N. 97 007 284 504
Information and specifications subject to change without notice.
Melbourne:
Ph: [phone]
Fax: [phone]
Sydney:
Ph: [phone]
Fax: [phone]
Brisbane:
Ph: [phone]
Fax: [phone]
Gold Coast
Ph: [phone]
Fax: [phone]
Adelaide:
Ph: [phone]
Fax: [phone]
Perth:
Ph: [phone]
Fax: [phone]
Website: www.astralpool.com.au
Email: [e-mail]
Form 241

Viron Pool and Spa Heater Page 2
CONTENTS
Introduction
Introduction .........................................................................................................3
Notice to Installers...............................................................................................3
Safety Rules.........................................................................................................3
Operation
Lighting Instructions ...........................................................................................4
Operating Instructions.........................................................................................4
Turning Gas Off ..................................................................................................4
Chemical Balance................................................................................................5
Corrosion Prevention in Heaters .........................................................................5
Digital Thermostat Operation..............................................................................6
Display symbol Indication...................................................................................7
Maintenance
Maintenance Instructions.....................................................................................8
Winter Operation.................................................................................................8
Installation
Installation Instructions.......................................................................................9
Flow Rates..................................................................................................9
Water Connections.....................................................................................9
Plumbing Diagram.....................................................................................9
Heater Dimensions...................................................................................10
Indoor Installation .............................................................................................10
Clearances..........................................................................................................10
Electrical Connection ........................................................................................11
Gas Connection .................................................................................................11
Pressure Switch Adjustment..............................................................................11
Testing Inlet Pressure........................................................................................12
Condensate drain………………………………………………………………12
Burner Performance Details
Burner Performance...........................................................................................14
Troubleshooting
Fault Finding and Remedies..............................................................................15
Gas Pipe Sizing
Gas Pipe Sizing Tables......................................................................................16
Wiring diagram
Viron Series Wiring Diagram............................................................................17
Warranty
Terms and Conditions........................................................................................18

Viron Pool and Spa Heater Page 3
INTRODUCTION
Congratulations on your purchase of a Viron Pool and Spa Heater by Hurlcon. Proper installation
and service of your new heating system and correct chemical maintenance of the water will ensure
years of enjoyment. The Viron Series Heater is a compact lightweight and highly efficient gas
fired pool and spa heater. It is equipped with features that take advantage of new technology
developed exclusively by AstralPool, to provide one of the most efficient and user friendly heaters
available. The patent pending heat exchanger will save up to 38% of operating costs over
conventional pool & spa heaters, generate condensate which can automatically top up pool water,
adjust burner rate to match the heat demand of your pool & spa and is approved with reduced
clearances to save on installation space.
The Viron can safely be connected to PVC pipe. It accepts high water flow rates which help the
heater run cooler, giving greater efficiency and long life. In addition, it 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.
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, 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.
WARNING: Electrical maintainance and repairs of this equipment must only be done by qualified
persons in accordance with Australian and state regulations.
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.

Viron Pool and Spa Heater Page 4
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.
NOTE – Servicing shall be carried out only by authorized personnel.
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 40 seconds.
9. If the appliance will not operate, turn heater power supply off. Repeat instructions 5 to 7
above. If the appliance still does not ignite, call your service technician.
10. For best results, your pool circulation pump should be run one consecutive period each day.
This will allow your heater to bring the pool up to temperature and reduce the gas input rate,
achieving its highest possible efficiency and lowest operating costs. Operating two or more
shorter periods each day may reduce operating cost savings.
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.

Viron Pool and Spa Heater Page 5
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.
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 5 and 12 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. 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.

Viron Pool and Spa Heater Page 6
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. Astral Pool’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).
YOUR WATER SHOULD BE ADJUSTED & BALANCED PRIOR TO ANY CORRODED
PARTS BEING REPLACED.
DIGITAL THERMOSTAT OPERATION
DESCRIPTION
The sophisticated digital thermostat provides temperature read out, set point temperature,
operating 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 on the LCD screen on the front of the heater. This is
part of normal operation.
Should a fault condition occur, the heater will lock out and prevent further heating. A lock out
condition is indicated by the symbols F0 to F9. To reset a lock out condition, turn the power off
for five seconds.
When the water temperature is heated to within 1 degree of the thermostat set point, the Viron
burner will modulate or turn down so that the set point is accurate maintained and not exceeded.
This prevents waste of energy typically associated with on/off burners. In addition, the set point
is maintained very accurately, so the when using your spa pool, you will notice very little variation
in water temperature.

Viron Pool and Spa Heater Page 7
DISPLAY SYMBOL 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 below 40°C ,
than 45°C. turn heater off then on again.
F2 Mechanical Hi Limit greater Allow water to cool below 30°C,
than 45°C. or 55°C turn heater off then on again.
F3 Thermistor fault Phone for Service
F4 N/A
F5 N/A
F6 Flue temperature safety device Phone for Service
locked out due to overtemperature
F7 Condensate drain blocked Phone for Service
F8 Heat exchanger sensor fault Phone for Service
F9 Heat exchanger sensor too hot Phone for Service
Greater than 240degC
L Heater locked out on time No action. Heater will
delay for 2 minutes. Automatically reset after
time delay.
time delay.
Pump operating & sufficient No action.
water pressure to operate heater
Thermostat calling for heat. No action.
Electronic Flame Supervision
operating.
Burner Operating No Action

Viron Pool and Spa Heater Page 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 and panel louvres for blockages. Make sure there are no obstructions
to the flow of air to or 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 and acid 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.
4. Have your heater professionally inspected at least every 2 years.
WINTER OPERATION
If the pool won’t be used for a month or more, turn the heater off at the main gas isolation valve.
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.

Viron Pool and Spa Heater Page 9
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 Australian Standard
Installation Code AS5601.
The installer must test the operation of the appliance before leaving.
FLOW RATES
The Viron Pool Heater requires a minimum of 250 litres per minute flow and the maximum
permissible flow rate is 500 litres per minute. For flow rates in excess of 600 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 right hand side of the heater. The inlet and outlet are clearly marked. Water connections
require 50 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.
PLUMBING DIAGRAM
Condensation Drain Hose (optional)
To Solar
From Solar
From Pool
Pump Filter Heater
Chlorinator
Return to Pool
Heater Diagram
1. Plumbing in high pressure 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

Viron Pool and Spa Heater Page 10
HEATER DIMENSIONS
INDOOR INSTALLATION
The heater is not suitable for conversion to internal installation. Please refer to an Astral Pool
Service branch.
CLEARANCES
Installation clearances must comply with AS5601. The heater is approved for installation at
reduced clearances as below.
Outdoor Clearances from non combustible surfaces are:
Front 300mm
Both sides 300mm
Rear 50mm
Above 1000mm
Outdoor Clearances from combustible surfaces are:
Front 300mm
Both sides 300mm
Rear 300mm
Above 1000mm
Heater must be installed on a fireproof base.
Model Dimension A Dimension B Dimension C
Viron 250 675mm 285mm 475mm
Viron 350 675mm 285mm 350mm
Viron 450 845mm 395mm 435mm
Viron 550 845mm 395mm 585mm
Front View Right Side View Rear View

Viron Pool and Spa Heater Page 11
ELECTRICAL CONNECTION
The heater is supplied with a standard 10 amp 3 pin plug for connection to a 240V 10 amp GPO.
All pool or spa equipment connected to mains power should be protected by an RCD circuit
breaker.
GAS CONNECTION
The gas connection is on the rear of the heater. A 22mm M.I. connection is provided for gas line
connection. An approved manual shut off valve must be installed in the gas fitting line before the
heater.
The gas fitting line should be installed by an authorised person and comply with local regulations
and Australian Standard code AS5601. The gas line from the meter will usually be of a larger size
than the gas inlet connection.
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 the supply inlet pressure checked while the heater is
running against the heater data plate. Incorrect inlet pressures may void warranty and may result
in service charges, should service be required. Gas valves are preset and should only be adjusted
by trained Astral Pool technicians.
PRESSURE SWITCH ADJUSTMENT
The Viron Pool Heater incorporates a water pressure switch which allows the burner to operate
only when the circulating pump is operating. The pressure switch is designed to operate with the
heater installed up to 3 metres above or below the surface level of the pool or spa.
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 top right hand side panel and is screwed into the water manifold.
The pressure switch is a safety device, designed to allow operation of the heater only when the
circulating pump is 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 and turn power on. 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 and turn heater thermostat to “OFF”.
2. Turn pump on.
3. View display of heater to confirm the “θ” has appeared on the LCD display on front of heater.

Viron Pool and Spa Heater Page 12
4. If no symbol is present, slide toggle up to allow adjustment, then rotate knurled wheel anti
clockwise (as viewed from above) until “θ” is displayed.
5. Switch off pump.
6. View LCD display to confirm “θ”has disappeared.
7. If “θ” symbol is present when pump is OFF or “θ” does not disappear within 1 (one) second of
pump turning off, the pressure switch must be adjusted.
8. With Pump turned OFF, turn knurled wheel clockwise to increase the pressure required to
activate the switch.
9. Repeat steps 2 to 8 until symbol appears and disappears when pump turns on and off.
10. When the switch is correctly set, slide the toggle down to lock the knurled wheel in position.
11. If pressure switch cannot be made to activate heater when pump is turned on and off, a flow
switch may need to be purchased and fitted. Contact your local Astral Pool office for details.
WARNING: If the pressure switch cannot be adjusted correctly, DO NOT OPERATE THE
HEATER, contact Astral or an Authorised Service Agent for advice.
12. Perform a final check with the heater operating.- See the section below titled “Starting the
heater”.
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) Installation of an external flow switch may be preferred under certain installations
where internal pressure switch does not turn heater off when circulator stops.
TESTING INLET PRESSURE
1. Note – gas pressure must be measured when unit is operating.
2. Set thermostat to “OFF”.
3. Remove top cover (2 screws at rear of heater, remove L/H side panel, remove front 2 screws
hidden inside side panel area)
4. Remove electrical enclosure screws and hinge cover forward.
5. Loosen screw from ⅛” brass test point located on inlet side of gas valve
6. Connect manometer tube to test point
7. Set thermostat to “ON” and wait for burner to ignite
8. Once burner has ignited, the manometer must indicate the nominal inlet pressure listed below.
9. Adjust inline pressure to meet minimum required pressure at main gas regulator. Do not
adjust gas valve settings..
10. Tighten test point screw.
11. Refit covers.
Pressure Switch Adjustment
Slide toggle up
to allow
adjustment
Turn wheel in
direction of arrow
to decrease
pressure required
to operate heater

Viron Pool and Spa Heater Page 13
Required Inlet gas pressure:
Natural Gas 1.13 kPa minimum 5 kPa maximum
Propane (250 only) 2.75 kPa minimum 5 kPa maximum
CONDENSATE DRAIN
The Viron heater is a highly efficient gas appliance capable of generating 12 litres an hour of
condensation. Suitable drainage provision must be provided to ensure condensation does not build
up in the heater or flood damage surrounding areas. Do not raise the drain hose higher than the
exit point of the appliance.
Alternatively, the condensate can be used to replenish or “top up” your pool water. A Condensate
Drain Kit can be purchased separately and installed so that the condensate is returned into the pool
water.
When the heater commences operation, a solenoid valve will open the condensate line and allow
the vacuum created by the pump to draw the condensate into the pool water.
The condensate has a pH of approximately 6.8. Most chlorines and sanitisers used for pool water
disinfection will increase the pool water pH over a period of time, so an additional advantage of
the condensate produced by your Viron Heater is that the low pH will counter balance the high pH
of the disinfectant used in most pools.
IMPORTANT: Chlorines, disinfectants and sanitisers usually require a narrow bank of pH in
which to work effectively. Ensure you check the pH of your pool or spa weekly, and adjust as
necessary.

Viron Pool and Spa Heater Page 14
PERFORMANCE DETAILS
TO CHECK BURNER PERFORMANCE
1. Turn off power supply to pump and heater.
2. Turn off gas supply to unit.,
3. Remove top cover.
4. Remove electrical enclosure screws and hinge electrical cover forward.
5. Setup gas combustion analyser
6. Set up manometer to inlet side of gas valve.
7. Adjust gas rate screw 4 turns anticlockwise.
8. Turn on gas supply.
9. Turn on power to heater.
10. Start heater
11. Ensure heater is running at full fan rate.
12. Check inlet gas pressure is between max and min settings.
13. While heater is running adjust gas ratio screw to achieve a CO ratio of between 30ppm to 60
ppm for Natural Gas models and between 50ppm and 150ppm for model 250 ULPG
14. Check meter gas usage rate to ensure gas rate is as specified. Gas rate must be within +/-5%
of nominal rate.
15. Remove manometer and tighten test point.
16. Remove analyser.
17. Refit electrical cover.
18. Refit cover.
Gas inlet pressures (all models)
Natural Gas 1.13 kPa minimum 5 kPa maximum
Propane (250 only) 2.75 kPa minimum 5 kPa maximum
CO ratio (all models)
Natural Gas 30ppm minimum 60ppm maximum
Propane (250 only) 50ppm minimum 150ppm maximum
Gas inlet rates
Viron 250 Natural gas & Propane 190mj/hr
Viron 350 Natural gas 290mj/hr
Viron 450 Natural gas 375mj/hr
Viron 550 Natural gas 490mj/hr

Viron Pool and Spa Heater Page 15
TROUBLESHOOTING
HEATER WILL NOT LIGHT
Possible cause Remedy
No display Check if power to heater is turned on
Pump not running Start pump
Pump air locked Check for leaks
Filter dirty Clean filter
Pump strainer basket clogged Clean strainer
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
Gas turned off Turn gas cock on
Heater in a Fault condition Refer to fault indication table
HEATER SHORT CYCLING (RAPID ON AND OFF OPERATION)
Possible cause Remedy
Insufficient water flow Clean filter and pump strainer
HEATER MAKING KNOCKING NOISES
Possible cause Remedy
Low water flow Check pump condition
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 Astral Pool office closest to
you.

Viron Pool and Spa Heater Page 16
GAS PIPE SIZING TABLES
1.13 kPa gas meter pressure
Some areas of VICTORIA
Maximum run of copper pipe with average number of fittings
Model 20 mm 25 mm 32 mm 40 mm 50 mm
VIRON 250 2 m 8 m 30 m 75 m 320 m
VIRON 350 - 4 m 14 m 35 m 140 m
VIRON 450 - 3 m 8 m 20 m 90 m
VIRON 550 - 1 6 m 14 m 60 m
1.25 kPa gas meter pressure
S.A., W.A., some areas N.S.W.
Maximum run of copper pipe with average number of fittings
Model 20 mm 25 mm 32 mm 40 mm 50 mm
VIRON 250 6 m 25 m 90 m 240 m 320 m
VIRON 350 3 m 14 m 45 m 110 m 320 m
VIRON 450 2 m 8 m 25 m 70 m 300 m
VIRON 550 - 6 m 18 m 45 m 200 m
2.75 kPa gas meter pressure
N.S.W. some areas, Victoria some areas, Qld some areas
Maximum run of copper pipe with average number of fittings
Model 15 mm 20 mm 25 mm 32 mm
VIRON 250 4 m 40 m 160 m 320+ m
VIRON 350 2 m 20 m 85 m 280 m
VIRON 450 - 12 m 50 m 160 m
VIRON 550 - 8 m 35 m 100 m
Gas Pipe Sizing Tables are indicative only. All pipe sizing should be calculated by an authorised
person.

Viron Pool and Spa Heater Page 17
VIRON WIRING DIAGRAM

Viron Pool and Spa Heater Page 18
FIVE YEAR PRO RATA WARRANTY
AstralPool 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. Components such as gas valve, thermostat, pilot, wiring, burner, gaskets and all other
components are covered for a period of two years (plus 30 days to allow for installation)
3. The heat exchanger, inlet and return water headers are covered for a period of one year
(plus 30 days to allow for installation).
The warranty includes in field labour costs where the heater is installed in a capital city
metropolitan area or within a 20 km radius of an Authorised AstralPool Service Agent.
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. AstralPool
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 AstralPool 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 AstralPool.
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 12 months from the date of purchase plus 30 days.
Astral Pool Australia Pty. Limited
Melbourne:
Ph: [phone]
Fax: [phone]
Sydney:
Ph: [phone]
Fax: [phone]
Brisbane:
Ph: [phone]
Fax: [phone]
Gold Coast
Ph: [phone]
Fax: [phone]
Adelaide:
Ph: [phone]
Fax: [phone]
Perth:
Ph: [phone]
Fax: [phone]
Website: www.astralpool.com.au
Email: [e-mail]