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Installation and Operation Data
FOR YOUR SAFETY - This product must be installed and serviced by a contractor who is licensed
and qualifi ed in pool equipment by the jurisdiction in which the product will be installed where such
state or local requirements exists. In the event no such state or local requirement exists, the installer
or maintainer must be a professional with suffi cient experience in pool equipment installation and
maintenance so that all of the instructions in this manual can be followed exactly. Before installing this
product, read and follow all warning notices and instructions that accompany this product. Failure to
follow warning notices and instructions may result in property damage, personal injury, or death.
Improper installation and/or operation can create carbon monoxide gas and fl ue gases which can
cause serious injury, property damage, or death. For indoor installations, as an additional measure of
safety, Zodiac Pool Systems, Inc. strongly recommends installation of suitable Carbon Monoxide
detectors in the vicinity of this appliance and in any adjacent occupied spaces. Improper installation
and/or operation will void the warranty.
Installation and
Operation Manual
Legacy
™
Pool and Spa Heater
Model LRZ Millivolt
Natural Gas and LP
NOTE: LP Gas for
Outdoor Use only
If these instructions are not followed exactly, a fi re or explosion may result,
causing property damage, personal injury, or death.
Do not store or use gasoline or other fl ammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
•
Do not try to light any appliance.
•
Do not touch any electrical switch; do not use any phone in your building.
•
Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
•
If you cannot reach your gas supplier, call the fi re department.
Installation and service must be performed by a qualifi ed installer, service
agency or the gas supplier.
WARNING
WARNING
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Table of Contents
Troubleshooting
Related Manuals for Jandy Legacy LRZM
Summary of Contents for Jandy Legacy LRZM
- Page 1 Installation and Operation Data WARNING FOR YOUR SAFETY - This product must be installed and serviced by a contractor who is licensed and qualifi ed in pool equipment by the jurisdiction in which the product will be installed where such state or local requirements exists.
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Page 3: Table Of Contents
Page 3 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Table of Contents Section 1. General Information ....5 Section 5. Water Connections ....16 Introduction ..........5 Water Piping ..........16 Consumer Information and Safety ...5 Check Valve Installation ......17 1.2.1 Spa/Hot Tub Safety Rules ..5 Automatic Flow Control Valve ....17... - Page 4 Page 4 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Table of Contents (Continued) Section 10. Professional Maintenance and Service ......33 10.1 General Information .........33 10.2 Natural-Draft Combustion System ...33 10.3 Heater Components and Their Operation ..........33 10.4 Electrical Troubleshooting .......34 10.4.1 Gas Valve ........34 10.4.2 Pilot Generator ......36...
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Page 5: Section 1. General Information
Consult your dealer quently result in drowning. for the appropriate Jandy products for these applica- tions. Pregnant women take note! Soaking in water above 102°F (38.5°C) can cause fetal damage NOTE “Fresh water swimming pools and spas”... -
Page 6: Swimming Pool Energy Saving Tips
Details are specifi ed on the back cover of this manual. • Physical inability to leave spa Make all warranty claims to a Jandy dealer or • Fetal damage in pregnant women directly to the factory. Claims must include the heater serial number and model (this information can be •... -
Page 7: Materials Installer Must Provide
Gas or Propane Gas). for indoor installations in the USA and outdoor Inlet Gas Supply Pressure: shelter installations in Canada (see Section Minimum Maximum 3.2.2). Draft hoods are available from your Jandy Natural Gas: 5.5 "WC 10.0 "WC distributor. LP Gas: 10.0 "WC... -
Page 8: Dimensions
Check the rating plate on the heater or the Parts Section 2. Installation Instructions List (Section 11) of this manual for the correct Jandy draft hood or vent cap part number. See instructions supplied with the draft hood or vent cap for installation Introduction and attachment. -
Page 9: Clearances
Page 9 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ 7 5/8" 10 3/8" 16" 5" 8" 41" 39 3/8" 28 1/2" 13 1/8" 2 3/4" Venting Dimensions Heater Width U.S. Indoor or Firing Rate U.S. Outdoor Dim "A" Model Vent Diameter CAN Outdoor Shelter... -
Page 10: Flooring
Hollow Concrete Block must never be installed directly on carpeting. Platform (In Canada - Two As an alternative to the Jandy noncombustible continuous courses of base plate, in the United States, the National Fuel Gas 90mm (4 in.) thick hollow masonry units.) -
Page 11: Indoor And Outdoor Shelter
Page 11 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ WARNING downdraft conditions exist, locate the heater at least 3 feet (0.91 m) from vertical surfaces (e.g., nearby United States buildings and walls). The addition of a vent cap may Do not install the heater with the top of the vent as- be necessary. -
Page 12: Section 3. Venting
12 inches (305mm) of the fl oor. All indoor installa- Jandy distributor. See Section 11 (Parts List) of this tions must have openings to outside air for combus- manual for the correct part number for your model and tion, ventilation, and dilution of fl... -
Page 13: Vent Pipe Sizing And General Installation
Do not terminate the vent heater. Approved vent caps may be obtained through under decks, stairways, or car ports. your Jandy distributor. Be sure to support all venting so that connec- tions will not separate and so that the weight of the vent pipe does not rest on the heater draft hood. -
Page 14: Inspection And Replacement Of Existing Vent System With New Components
Page 14 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ heater draft hood. The draft hood and heater top must AVERTISSEMENT be easily removable for normal heater service and Les appareils de chauffage à faibles émissions inspection. Legacy pour piscines et cuves thermales sont The draft hood outlet is to be connected to an conçus pour être utilisés avec du gaz naturel ou du unobstructed vent pipe of the same diameter, termi-... -
Page 15: Manifold Pressure
Page 15 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ If the gas supply pressure is less than required, APPROVED check for undersized pipe between the meter and the heater, a restrictive fi tting, or an undersized gas meter. Gas supply pressures to the heater are listed in Table 5. -
Page 16: Special Precautions For Lp Gas
Page 16 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ slotted cap is a slotted plastic screw which increases Section 5. Water Connections the manifold pressure when turned clockwise and decreases the manifold pressure when turned counter- Water Piping clockwise. -
Page 17: Check Valve Installation
Page 17 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Check Valve Installation The heater must be protected from back-siphon- ing of water, which can result in dry starts. If there is any chance of back-siphoning, provide a check valve between the pool and the fi... - Page 18 Page 18 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Tag and disconnect the white wire on the 15. Thread on the ten (10) bolts and washers and pressure switch (PS) and the white wire on the hand tighten. Fireman's switch terminal which leads to the high 16.
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Page 19: Connections At Heater
To protect the threads while drilling, screw the The Legacy heater has a standard two (2) inch brass adapter (included with the Jandy PRV kit) water header and coupling design. With this feature, into the blind threaded hole on the top of the only nominal two inch PVC or CPVC may be connect- inlet/outlet header. -
Page 20: Auxiliary Components, Chlorinators, Ozone Generators, And Sanitizing Chemicals
Page 20 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ CAUTION Do not use any pipe compound or pipe dope on the threads of the adapter or any part that comes in TEMPORARILY INSTALL contact with the plastic headers. These compounds BRASS ADAPTER TO START WITH A 1/4"... -
Page 21: Section 6. Electrical
Page 21 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Section 6. Electrical CAUTION BLACK BLACK Label all wires prior to disconnection when servic- ing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. -
Page 22: Connection Diagram
Page 22 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ MILLIVOLT HEATER ELECTRICAL DIAGRAM Schéma Électrique Du Chauffe-Eau Modèle Millivolt 150° 130° Connection Diagram Temperature Control High Limit High Limit Switch Switch Régulateur de température Contacteur de Contacteur de Schéma de montage fin de course fin de course... -
Page 23: Section 7. Operating Instructions
Page 23 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Section 7. Operating Instructions CAUTION Do not attempt repairs on the gas controls or appli- ance. Tampering is dangerous and voids all warran- Normal Operation ties. The Legacy model LRZ millivolt heaters are ATTENTION capable of automatic operation based on a call for Ne tentez pas d’effectuer des réparations au sys-... -
Page 24: Lighting And Shutdown Procedures
Page 24 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ WARNING The heater may not start on the fi rst try. Air in DO NOT attempt repairs on the gas control or the gas line or other start-up situations may cause it to heater. - Page 25 Page 25 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ FOR YOUR SAFETY READ PRÉCAUTIONS À LIRE BEFORE OPERATING AVANT D’UTILISER AVERTISSEMENT : Si vous ne suivez pas ces instruc- WARNING: If you do not follow these instructions tions à...
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Page 26: Adjusting The Water Pressure Switch
fi ring. As the pool/spa water temperature falls below switch if the heater is installed more than 15 feet (4.57 the thermostat setting the heater will once again start m) below the pool surface. Consult your local Jandy the heating cycle. representative for recommendations. -
Page 27: Temperature Rise
A temperature rise measurement service department. kit is available through your Jandy distributor. See Section 11 of this manual for the correct kit number. Temperature Rise The internal bypass can be adjusted by means of a screw on the right-hand side of the header. -
Page 28: Section 8. Maintenance
Page 28 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Table 6. Water Temperature Rise and Flow Rates Table 7. Optimal Water Chemistry Ranges* (Measured at Return Header) Test Recommended Level Model Minimum Maximum Minimum Free Chlorine 1.0 to 3.0 ppm Temp Rise, Temp Rise, System Flow... -
Page 29: Spring Start-Up
Page 29 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Turn on the heater following the lighting instruc- tions found on the inside of the heater, or page 25 of this manual. Inspection and Service The Legacy heater is designed and constructed to provide long performance life when installed and operated properly under normal conditions. -
Page 30: Professional Inspection
Page 30 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ held beneath the burners. The fl ame should be WARNING Blue in color. Do not use this heater if any part has been under 1 to 4 inches (25mm to 102mm) above water. -
Page 31: Section 9. Troubleshooting
Page 31 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ 11. Conduct a normal operating cycle and observe that the sequence proceeds as intended. CAUTION For your safety, when starting the heater, keep your head and face away from the burner area opening to prevent any risk of personal injury. - Page 32 Page 32 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Table 8. Legacy Troubleshooting Guide Symptom Cause Remedy Pump not operat- No power Check circuit breakers and power source. Pump defective Replace. Incorrectly wired Recheck wiring. Pilot outage Inlet gas pressure too low Consult gas utility company.
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Page 33: Section 10. Professional Maintenance And Service
Page 33 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Section 10. Professional properly adjusted. Also be sure that there is no block- age of the vent or louvers which supply combustion air Maintenance and Service to the burners. WARNING 10.2 Natural-Draft Combustion System... -
Page 34: Electrical Troubleshooting
Page 34 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ Temperature Control - The Jandy Legacy 10.4 Electrical Troubleshooting controller is an electronic control which senses This section describes procedures for check- water temperature by means of a thermistor and... - Page 35 Page 35 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ 150° 130° 150° 130° 18 19 BK - Black, Noir W - White, Blanc Y - Yellow, Jaune R - Red, Rouge Figure 25. Test Point Identifi cation Diagram...
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Page 36: Pilot Generator
Page 36 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ If the main burners will not light after follow- lead of the meter to the terminal of the fusible link ing the lighting instructions in Section 7.3, check the where the white wire from the gas valve is connected voltage reading between the PP terminal on the gas (test point 3). -
Page 37: Water Pressure Switch
Page 37 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ ture, which should be thoroughly investigated before If there is no voltage, the pressure switch contacts replacement of limit switches. Excessive water temper- are open. This is almost always due to a water fl ow ature may be caused by low water fl... -
Page 38: Temperature Sensor
To order or purchase parts for the Legacy pool The temperature sensor is a 0-20,000 ohm and spa heater, contact your nearest Jandy dealer or thermistor. Set your ohmmeter to the 0-20K range. distributor. See the web site at www.jandy.com for the The meter readings will depend on the temperature of nearest service center. -
Page 39: Parts List
Page 39 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ 11.2 Parts List Model No. Order Model No. Order Description Part No. Description Part No. Electrical System (Continued) Pilot/Igniter System Fusible Link Assembly R0012200 Pilot, Main Burner Assembly, Natural R0494700 Fusible Link Bracket R0337200... - Page 40 Page 40 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ 11.2 Parts List (Continued) Model No. Order Description Part No. Jacket Components (Continued) Return Side Cover, Top R0482800 Return Side Cover, Bottom R0482900 Heat Shield 125-400 R0483101-05 Heat Defl ector Guard, Front 125-400 R0483201-05 Rear Partition...
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Page 41: General Exploded View
Page 41 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ 11.3 General Exploded View... -
Page 42: Detailed Exploded View
Page 42 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ 11.4 Detailed Exploded View 77,78... - Page 43 Page 43 Legacy Model LRZM Pool/Spa Heater Installation and Operation Manual ™ 77,78...
- Page 44 Zodiac Pool Systems, Inc. 6000 Condor Drive, Moorpark, CA, USA 93021 • 800.822.7933 FAX 877.327.1403 © 2010 Zodiac Pool Systems, Inc. 1007...