Raypak 538 To 4224 User's Manual
Contents
1. 12 Start the circulation pump and verify the pressure switch operation then test the operation of the heater with no gas flow to confirm its operation up to the lockout status Pressure switch adjustment is required if the unit won t fire and after faultfinding it is verified that the pressure switch has not closed Adjust the pressure setting at the thumbwheel to a lower setting then re start the heater If the heater fires up but won t shutdown when the water is reduced then it will require adjustment to the thumbwheel to a higher setting and the heater restarted In some cases the electrical interlock between the pump and heater may require a temporary disconnection to carry out tests 13 Open the gas supply valve switch on the main valve isolation switch and reset the ignition control to fire the heater 14 When the unit fires and reaches high fire set the burner gas pressure to that shown on the data plate which is located on the front of the heater 15 Verify that the high limit and any other safety devices are operating correctly 16 Check the water temperature rise of the heater and adjust the water flow as necessary For models 538 1292 measure the temperature difference between the Inlet and Outlet pipes at the heater with the unit at full fire The difference should be approximately 5 10 Deg C If it is lower than recommended decrease the water flow through the heater If it is higher than re2. Raypak heaters utilise a finned copper tube heat exchanger resulting in a low water content and reduced stand by heat losses Therefore a circulator pump of sufficient capacity to match the heater model must be installed in the system Raypak heaters are fitted with Australian Gas Association approved components and all boilers in this range are designed to comply to AG501 Some models are designed for either indoor or outdoor installation subject to the appropriate indoor draft hood or outdoor stackless top being fitted Check that the correct top for your installation has been supplied INSTALLATION PROCEDURES All electrical gas piping gas connection and flueing of the heater must only be undertaken by a properly authorised person The installation must comply with local gas AG601 2000 and electrical codes and or statutory body codes and regulations Raypak heaters must be installed in the filtration system in the pool return line downstream from the filter INSPECTION OF EQUIPMENT Check the heater and associated equipment for any damage and if so notify your local representative or Raypak for any further instructions DO NOT INSTALL OR START UP ANY RAYPAK SUPPLIED PRODUCT THAT HAS PART 2 SECTION I INSTALLATION INSTRUCTIONS BEEN DAMAGED WITHOUT FIRST CONSULTING RAYPAK AS ANY DAMAGE OR FAULTS CAUSED BY UNAUTHORISED START UP MAY NOT BE COVERED BY OUR WARRANTY HEATER LOCATION AN
3. installation and Uperating eel wie E Raypak Commercial Swimming Pool Heaters Part 1 Safety warning Part 2 Models 538 to 4224 Part 3 Warranty CONTENTS Part 1 For Your Safety Part 2 Models 538 to 4224 Section 1 Installation Instructions Section 2 Owners Operating Instructions Part 3 Warranty Date of Installation Model No Serial No Installed by Purchased from This Installation and Operating Instructions Manual is provided with the necessary information for the proper installation operation and maintenance of your Raypak Heater Please review and follow these procedures carefully Keep this manual in a safe and accessible place for easy reference in the future PART 1 FOR YOUR SAFETY os WARNING do not operate this appliance before reading Improper installation adjustment alteration service or maintenance can cause injury or property damage For assistance or additional information consult your Raypak distributor qualified installer or service agency this instruction booklet WHATTO DO IFYOU SMELL GAS DO NOT try to light any gas appliance DO NOT touch any electrical switch Turn off the gas supply at the gas meter Immediately call your gas supplier or licensed gasfitter NOTE Some gases are heavier than air and it may be necessary to check for gas leaks at floor level CAUTION DO NOT Operate this appliance
4. a flue shall not exceed 50 of total flue height and shall be designed to rise not less than 20 mm per 1 m run The flue must be terminated with an approved cowl Raypak recommends a minimum length of vertical flue of three 3 metres to ensure correct draft AGA Approved Cowl PART 2 SECTION I INSTALLATION INSTRUCTIONS Distance above roof must be as stated in AG601 Minimum flue length 3 metres Self supporting flue Correct draft converter Indoor hood Heater OUTDOOR INSTALLATIONS An outdoor heater must not be installed inside any roofed structure or under eaves roof overhangs or pool decks It should also be at least 1500 mm in any direction from any window or fresh air opening When installing the heater on a raised base please make sure that the base material is solid and filled in E G If steel mesh decking is used a suitable plate material must be used to fill in the perforations This is very important as any excessive drafts must not be able to enter the unit from directly underneath Water Connections X This area must be filled in On large elevated decks fill in to at least one metre all around unit Gas _ Connection Elevated Deck HIGH WIND CONDITIONS On rare occasions or in areas where high winds frequently occur it may be necessary to locate the heater a minimum of one 1 metre from high vertical walls or install
5. a wind break so that the heater is not in direct wind current Models 538 to 1852 where the installation may cause Down draft Raypak can supply a Wind Deflection Plate at extra cost to eliminate constant ignition failures or flame disturbance the need for which would be determined by an approved Raypak Service Person or Agent Wind Deflection Plate Prevailing Winds gt gt High Wind Windbreak In areas of constant extreme winds or where a Wind Deflection Plate is not appropriate it may be necessary to replace the standard low profile outdoor hood with a HIGH WIND TOP which would be at extra cost The HIGH WIND TOP serves the same function as the low profile outdoor hood and should be installed in accordance with the same clearance requirements HIGH WIND TOP 610 mm GAS SUPPLY The gas supply pipe must be sized to give sufficient pressure for the correct operation of the heater The gas line must be fitted with an isolation valve Consult AG 601 for further details Caution The gas supply must be isolated from the heater during pressure testing of the gas fitting line Dissipate test pressure before reconnecting to the heater Failure to follow this procedure may result in damage to the gas valve Over pressured valves and equipment are not covered by our warranty The heater and it s gas connec
6. cases where excessive draft effects the burner the risk of major damage is high due to incomplete combustion Installations which obtain air from a source other than directly from outside must comply to AG601 Warning Air supply to the heater room must not be affected by mechanical exhaust vents located in other parts of the house or building such as kitchen or bathroom fans spa blowers etc Mechanical exhaust vents may create a negative pressure in the heater room that can become a hazard by asphyxiation explosion or fire Caution Do not store chemicals or flammable materials in the same room or near this heater Do not use aerosols near this heater whilst it is in operation FLUEING The correct Draft hood must be fixed to the top of the heater and connected to a properly constructed flue vented to the outside using only approved fittings Reduction of the flue diameter or alteration to the draft hood voids all warranty Where flueing may be difficult please contact Raypak for advice we will have solutions particularly where a fan assisted flue may be the answer The weight of the flue must not rest on the heater draft diverter the flue must be self supporting and be fitted with a disconnection section bolted sleeve to enable the heater top and draft diverter to be removed easily for servicing Where practicable the flue should run vertically Lateral raised above horizontal is acceptable but the run of
7. immediate area ONLY A SUITABLY LICENSED PERSON MAY PERFORM ANY REPAIRS SERVICE AND OR COMMISSIONING OF GAS APPLIANCES 16 RAYPAK WARRANTY FOR COMMERCIAL SWIMMING POOL HEATERS Raypak Australia Pty Ltd will a repair or if necessary replace any Raypak pool heater or b replace any component or if necessary arrange the installation of a new pool heater which falls within the Warranty Periods specified below in accordance with and subject to the following table and terms and conditions Component and Heat Exchanger Warranty From Date of Installation Period 12 Months Installation All Installations Model P0538 P4224 Warranty New component tube bundle or heat exchanger at Raypaks sole discretion free of charge including labour Notes Rheem Australia Pty Ltd provides warranty service on behalf of Raypak Australia Pty Ltd Refer to item 5 of warranty conditions Raypak Australia Pty Ltd reserves the right to transfer fully functional components from the defective pool heater to the replacement pool heater if required WARRANTY CONDITIONS 1 This warranty is applicable only to pool heaters manufactured from 1st August 2002 2 The pool heater must be correctly commissioned by an authorised and licensed person and certified by the relevant State Gas Authority 3 The pool heater must be installed in accordance with the R
8. AY CAUSE THE POOL HEATER WARRANTY TO BECOME VOID AND MAY INCUR A SERVICE CHARGE AND OR COST OF PARTS a Accidental damage to the pool heater or any component including acts of God failure due to misuse incorrect installation attempts to repair the pool heater other than by a Rheem Accredited Service Agent or Rheem Service b Where it is found there is nothing wrong with the pool heater where the complaint is related to excessive discharge from the pressure relief valve due to high water pressure where there is no flow of water due to faulty plumbing where water leaks are related to plumbing and not the pool heater components where there is a failure of gas electricity or water supplies where the supply of gas electricity or water does not comply with relevant codes or acts c Where the pool heater or pool heater component failed directly as a result of excessive water pressure temperature and or thermal input incorrect flow rate through the heat exchanger corrosive atmosphere d Where the pool heater is located in a position that does not comply with the 17 Raypak installation instructions or relevant statutory requirements causing the need for major dismantling or removal of cupboards doors or walls or use of special equipment to bring the pool heater to floor level or to a serviceable position e Repairs to the pool heater due to corrosion or scale formation in the waterways where the po
9. D CLEARANCES The heater should be located so that any possible water leaks will not cause damage to any adjacent areas or structures When such locations cannot be avoided it is recommended that a suitable drain pan adequately drained be installed under the heater This pan must not restrict combustion air flow The heater must be mounted on a level non combustible base such as a concrete slab concrete plinth steel plate etc Raypak heaters and equipment must not be installed on carpeting The front of the heater must not be obstructed by any gas or water piping electrical conduits trees fences or other equipment etc COMBUSTION VENTILATION AIR Indoor model heaters must only be installed in a protective enclosure or properly constructed plant room with adequate ventilation in accordance with AG 601 2000 Gas Installation Code Ventilation shall be via 2 permanent openings directly to outside one at an upper level and one at low level The minimum free area provided by each vent shall be as calculated by using the following formula unless otherwise stated in AG 601 A 15XT Where A Minimum free ventilation area cm2 T Total hourly input of all appliances Mj h Note The minimum dimension of any opening shall be 6mm Please take the heater location into account when locating the fresh air vents because any excessive draft will cause flame disturbance and probable pilot outage In some
10. LLATION INSTRUCTIONS PUMP SELECTION The filtration pump must be sized to provide an adequate water flow for the filtration system and the heater In some cases however this can cause a high back pressure which reduces the filtration capacity and in this case it would be more of on advantage to install an additional pump for the heater only This pump must be installed on the inlet side DO NOT connect the pump to the heater outlet Some heater models incorporate their own By Pass Pump but this is used to control the temperature of the water entering the heater to prevent condensation and scale and will not be suitable as the additional pump described above Refer to the Flow Rate chart following when sizing the pump Where the water flow rate exceeds the maximum shown in the chart a by pass valve must be installed to reduce the water flow through the heater A pump run on timer must be fitted to remove any residual heat from the boiler and prevent any nuisance tripping of the high limit switch COMMISSIONING WARNING COMMISSIONING MUST ONLY BE UNDERTAKEN BY A PROPERLY AUTHORISED AND IN SOME CASES APPROPRIATELY LICENSED PERSON WHO IS FAMILIAR WITH SAFE COMMISSIONING PROCEDURES THE COMMISSIONING MAY REQUIRE INSPECTION BY THE GAS SUPPLY AUTHORITY CHECK IF THIS IS APPLICABLE RECOMMENDED COMMISSIONING PROCEDURE 1 Check that all necessary approvals and appropriate documents have been obtained 2 E
11. NS FOR USE OF LAE ELECTRONIC THERMOSTATS Raypak uses the MTR12T1RES series thermostats which is programmed to operate in the heating mode The only adjustments that should normally be required are Set point set Which is the water temperature that you require Differential hys Which is the difference between the thermostat turning OFF and then ON again when the temperature has fallen eg 1 C would be ideal for controlling a swimming pool To Adjust the Set Point e Turn on the power supply to the heater eThe Digital display will show the actual water temperature e Press the set button L1 will be displayed for 2 seconds e Then the Set Point temperature will be displayed e By pressing the UP or DOWN button you can set the desired temperature To Adjust the differential e Turn on the power supply to the heater e The Digital Display will show the actual water temperature e Press the hys button HY1 will be displayed for 2 seconds e Then the value will be displayed It must be a negative value e Press the UP or DOWN button to set your desired differential e This is adjustable from 1 to 25 which relates to 1 to 25 Deg C LAE ELECTRONIC THERMOSTAT DEFAULT SETTINGS Raypak may have programmed this thermostat to avoid any nuisance failures as vSP Min Set Point 0 C the heater won t operate if the water temperature is below this setting ASP Ma
12. all air vents and louvres clean as required e Restore gas electricity and water as required e Recommission unit check and prove the operation of all safety devices e Check and monitor the operation of the appliance for at least ten 10 minutes e Refit access covers and doors as required e Clear and remove any dust and debris from the appliance and its immediate area RECOMMENDED SERVICE PROCEDURE FOR SIX MONTHLY SERVICE e Isolate gas electricity and water as required e Remove access covers and doors as required e Restore the gas electricity and water as required e Visually inspect main burner and pilot check 15 operation if needed e f necessary remove Burner Tray and service as required Refer to Annual Service e Check over the appliance thoroughly and report any damage immediately e Pool Heater Remove and test Unitherm Governor s if faulty Unitherm must be replaced before re commissioning appliance e Check the heat exchanger and water seal areas and report any damage if necessary e Check air vents and louvres clean as required e Check operation of ignition system and all safety devices e Check operation and calibration of all temperature control devices e Check operation and monitor the operation of appliance for at least ten 10 minutes e Refit access covers and doors as required e Clean and remove any dust and debris from the appliance and its
13. aypak installation instructions supplied with the pool heater and in accordance with all relevant statutory and local requirements of the State in which the pool heater is to be installed 4 Where a failed component or pool heater is replaced under Warranty the balance of the original warranty period will remain effective The replaced part or pool heater does not carry a new warranty PART 4 WARRANTY 5 Where the pool heater is installed outside the boundaries of a metropolitan area as defined by Rheem Australia Pty Ltd or further than 25 km from a regional Rheem branch office or a Rheem Accredited Service Agent the costs of transport insurance and travelling between the nearest Rheem Australia Pty Ltd Accredited Service Agent s premises and the installed site shall be the owner s responsibility 6 The warranty only applies to the pool heater and original or genuine company component replacement parts and therefore does not cover any plumbing or electrical parts supplied by the installer and not an integral part of the pool heater eg pressure limiting valve stop cock non return valve electrical switches pumps or fuse 7 The pool heater must be sized to supply the hot water demand in accordance with the guidelines in Raypak Pool Heater literature WARRANTY EXCLUSIONS 1 REPAIR AND REPLACEMENT WORK WILL BE CARRIED OUT AS SET OUT IN THE RAYPAK POOL HEATER WARRANTY ABOVE BUT THE FOLLOWING EXCLUSIONS M
14. before reading this instruction booklet DO NOT Place articles on or against appliance DO NOT Store chemicals or flammable materials in the same room as this appliance DO NOT Store chemicals or flammable materials on or spray aerosols near this appliance DO NOT Operate with panels covers or guards removed from appliance DO NOT Enclose this appliance applies to external models only DANGER Water temperatures above 45 Degrees Celsius can cause severe burns Children disabled and elderly persons are at the highest risk of being scalded Feel water before bathing or showering and supervise where necessary Keep this manual in a safe and accessible place for easy reference in the future This Installation and Operating Instructions Manual is provided with the necessary information for the proper installation operation and maintenance of your Raypak Heater Please review and follow these procedures carefully Model No Serial No wc Installation Date Part No 209130 5 Effective 08 01 2001 Replaces 01 10 2000 4 PART 1 FORYOUR SAFETY CAUTION Ceramic Firetile Refractory is used in Raypak Heaters Possible risks of irreversible effects Harmful by inhalation May be irritating to the skin eyes and respiratory system WHEN HANDLING e Minimise airborne dust e Wear an approved mask or respirator e Avoid any contact with the skin and eyes e Wear
15. commended it indicates that the water flow rate is too low For models 1362 to 4224 the temperature gauges which are fitted to the heater can be used as a guide The objective is to maintain a temperature of approximately 50 Deg C at the outlet side of the heater 30 Deg C at the inlet side with the unit at full fire 10 The digital display on the electronic thermostat will indicate the pool water temperature 17 Check that the flue is operating correctly or if there is evidence of Down draft etc report as necessary 18 Check operation of any water pressure relief valves etc and set up the controls to desired settings 19 Ensure that the customer is supplied with this manual and you have demonstrated the operation of the unit etc It is quite normal for the heater to produce some smoke and possible condensation for the first thirty 30 minutes of firing from new WARNING Should overheating occur or the gas fail to shut off turn off the gas isolation valve adjacent to the heater and then examine the unit or call for assistance TOTURN OFF THE HEATER 1 Turn the heater ON OFF power isolation switch to the OFF position EMERGENCY SHUT DOWN 1 Turn OFF the power supply to the heater 2 Turn OFF the gas isolation valve fitted close to the heater or the main gas supply AFTER START UP WARNING Should overheating occur or the gas supply fail to shut off turn off the gas isolation valve loca
16. ing on the type of system being used but must not be too close to the operating temperature as nuisance tripping will occur The usual setting is approximately 60 65 C To set the Honeywell L6188C High Limit remove Philips Head screw next to red reset button remove lighter grey cover pull out darker grey top cover to reveal adjustment WATER TREATMENT For your health and the protection of your pool equipment it is absolutely essential that your pool water is chemically balanced WARRANTY PROCEDURE FOR WATER LEAKS FROM HEAT EXCHANGER CORROSIVE WATER VOIDS ALL WARRANTIES 1 The service technician inspects the tube bundle if the water leak is through one or more pinholes usually caused by corrosion then the warranty is voided and therefore any repairs will be paid for by the owner 2 If the service technician deems that the water leak is not caused by corrosion the 14 technician can replace the faulty parts at the technician s risk Raypak will supply the new components the service technician will pay all charges and then there may be a refund when the parts have been returned to Raypak and we have agreed that the warranty is applicable 3 If there is an objection to this policy we suggest that the faulty components be submitted to an independent testing facility for analysis at the customer s expense If the testing facility deems that the leaking was caused by a manufacturing defect o
17. n production of the official report and details of costs Raypak will refund all relevant expenses incurred by the customer PART2 SECTION Il OPERATING INSTRUCTIONS RECOMMENDED SERVICE PROCEDURES It is a Raypak requirement that all Raypak supplied equipment is serviced at least annually In some installations due to the appliance location and or workload it may be necessary to perform a service every six months RECOMMENDED SERVICE PROCEDURE FOR ANNUAL SERVICE e Isolate gas electricity and water as required e Remove access covers and door s as required e Disconnect and remove Burner Tray e Dismantle and clean pilot assembly ies including injector s e Clean and re align electrode s and or flame rod s and or thermocouple s e Clean main burner injectors and burner bars as required e Inspect repair if minor and clean combustion chamber e Report on any major combustion chamber damage e Inspect external area of heat exchanger Clean fins and repair if minor e Check water seal area and report any damage e Operate Pressure Relief Valve if Fitted manually to check that the drain is clear and the valve reseals e Pool Heater Remove and test Unitherm Governor s replace if faulty e Refit Burner Tray and reconnect gas train etc e Perform gas soundness tests to the gas train Any failures must be reported and repaired before recommissioning appliance e Check
18. nsure that the heater is clean and the surrounding area is clear of all combustible and flammable materials 3 Remove all liquids and chemicals from the plant room and check that combustion air openings are not obstructed Chemicals must not be stored in the plant room this is extremely dangerous and may damage the heater 4 Fill the system with water and expel any air as required 5 Purge all air from gas supply piping CAUTION Liquid Propane Gas is heavier than air and sinks to the ground exercise extreme care in lighting boiler in confined areas 6 Test ALL gas connections for leaks using soapy water and a manometer NOT A NAKED FLAME 7 Conduct a visual inspection of the heater and equipment for any damage or installation problems and report as necessary 8 Check that the correct power supply is available and the circulation pump is electrically interlocked with the heater 9 Check that the ventilation to the plant room complies with Raypak requirements AG601 and local authority regulations If mechanical ventilation is provided check its operation and any interlocks 10 Check that the flue complies with the appropriate regulations and is fitted with an approved termination cowl PART 2 SECTION I INSTALLATION INSTRUCTIONS 11 Check that the gas supply is isolated and with the main gas valve isolation switch turned off check the boiler gas train and components for gas escapes
19. ol water chemistry is outside the guidelines detailed in the Operating and Installation Instructions 2 SUBJECT TO ANY STATUTORY PROVISIONS TO THE CONTRARY THIS WARRANTY EXCLUDES ANY AND ALL CLAIMS FOR DAMAGE TO FURNITURE WALLS FOUNDATIONS OR ANY OTHER CONSEQUENTIAL LOSS EITHER DIRECTLY OR INDIRECTLY DUE TO LEAKAGE FROM THE POOL HEATER In addition to this warranty the Trade Practices Act 1974 and similar laws in each state and territory provide the owner under certain circumstances with certain minimum statutory rights in relation to your Raypak pool heater This warranty must be read subject to that legislation and nothing in this warranty has the effect of excluding restricting or modifying those rights FOR SERVICE TELEPHONE Raypak Australia Pty Ltd A B N 65 078 743 414 131 031 AUSTRALIA 0800 657 335 NEW ZEALAND or refer to local Yellow Pages NOTE Every care has been taken to ensure accuracy in preparation of this publication No liability can be accepted for any consequences which may arise as a result of its application NOTES RHEEM SERVICE 131 031 WWW RHEEM COM AU Manufactured by Raypak Australia 7 Geddes St Mulgrave Vic 3170 3 Ph 03 9535 3333 Quality Fax 03 9560 4974 Endorsed Company JAN 2003 P NO 96209131
20. suitable loose fitting long sleeved clothing e Wear gloves and eye protection e Consult Occupational Health and Safety Authority for any further information AFTER HANDLING e Rinse any exposed skin areas with clean water e Wash work clothing separately FIRST FIRING OF HEATER e Fumes and smoke may be produced e Avoid breathing fumes ventilate area to clear e Production of smoke should cease within 30 minutes REMOVAL OF USED PRODUCT e Wear an approved mask Over exposure to dust formed after service may cause respiratory disease since cristobalite a form of crystalline silica may be formed above 900 degrees Celsius e Consult Occupational Health and Safety Authority for further information regarding removal of used ceramic fibre linings Raypak Commercial Swimming Pool Heaters Part 2 Models 538 to 4224 Before commencing installation 1 Read these instructions in full 2 Check that the heater you have been supplied is suitable for the type of installation and the gas available The gas supply pressure must be between the minimum and maximum shown on the heater data plate GENERAL These instructions are provided to ensure the correct installation and operation of your Raypak Swimming Pool Heater Should any questions arise regarding the specifications installation operation or servicing of this heater we suggest that the local representative or Raypak Customer Service be consulted
21. ted adjacent to the heater turn off the power supply switch and call for assistance VISUAL INSPECTION FOR DANGER Keep the heater area free from chemicals combustibles and flammable materials Do not obstrfeorials PART 2 SECTION II OPERATING INSTRUCTIONS LOCATION OF CONTROLS HIGH LIMIT MODELS 38 TO 2004 2404 2804 3304 3804 FLOW SWITCH ON SOME MODELS ONLY MODELS 2214 2634 3164 3694 4224 1 Flame Fail Reset Illuminates on FAIL 2 Alarm Fail amp Mute Button if fitted 3 Alarm Siren if fitted 4 Temperature Control Digital Thermostat 1 FLAME FAILURE RESET This is a combination rest button and indicator lamp It indicates when illuminated that the ignition system has shutdown on its safety control 2 ALARM FAIL amp MUTE BUTTON This is an optional extra which will illuminate when the heater has generally failed to operate on its safety controls The circuitry activates an audible alarm on fail which can be silenced by pressing the reset button however the light will remain illuminated until the cause of the failure has been reset 4 TEMPERATURE CONTROL Digital type thermostat with pushbutton adjustment 3 ALARM SIREN This is used in conjunction with the optional extra ALARM FAIL system and emits a high pitched warble when activated PART 2 SECTION Il OPERATING INSTRUCTIONS LOCATION OF CONTROLS INSTRUCTIO
22. tion must be thoroughly leak tested before placing in operation Use soapy water and a manometer for leak test DO NOT USE NAKED FLAME WATER CONNECTIONS AND SYSTEM PIPING The heater must be installed to the appropriate and or local codes For typical piping systems and heater applications it is essential that Raypak be consulted Raypak heaters do have some special requirements and if you are not familiar with Raypak products we can save you unnecessary inconvenience Water pipe connections to heater are 538 to 1292 50 mm copper slip fit or 2 NPT 1362 to 1922 80mm BSP and 2004 to 4224 100 mm BSP Do not reduce the pipework size and heater water connections without allowing for any friction loss which will occur Low water flow will cause damage to the heater and system components Please install pipework using approved fittings and isolating valves that will allow easy disconnection for any future maintenance requirements RAYBAK COMMERCIAL POOL HEATER Modes 538 to 1292 inclusive RAYPAK COMMERIAL POOL HEATER loc inclusive OUTLET INLET RETURN FROM POOL POOL Use a minimum of one 1 metre of copper or stainless steel tube for the final connections to the heater inlet and outlet NEVER CONNECT LOW TEMPERATURE PVC PRESSURE PIPE DIRECTLY TO THE HEATER A non return valve must be installed on the inlet side of the heater after the filter PART 2 SECTION INSTA
23. x Set Point 40 Deg C the device turns off the heater if the water temperature exceeds this setting 13 rt1 RL1 Rest Time 0 min here is no delay in relay operation PF1 Probe Failure OFF if the Probe water sensor fails the relay will urn off the heater ADJ Probe Offset 0 Deg C he relay operates on actual temperature of the sensor HY1 Mode 25 the negative value programs the device for heating gt TAMPER PROOF SETTINGS Decide what values for the set point and the differential suits the application Adjust the program so that vSP amp ASP are the same value as the set point and adjust the program so that HY1 is the same value as the differential The operator now cannot adjust the settings however this is not totally foilproof as re programming is still possible For total protection against tampering fit a locked or anchored cover over the thermostat buttons PART 2 SECTION II OPERATING INSTRUCTIONS PUSH TO START MODELS WHICH ARE CONNECTEDTO A MICROZONE SYSTEM If the heater s are operated by a Microzone system there will be a rotary type control knob fitted which should be aligned to the desired temperature HIGH LIMIT SWITCH ALL heaters are fitted with a manual reset high limit switch This control will shut down the heater in the event of a fault with the temperature control and or overheat of the system This setting will vary depend
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