Table of Contents
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installation and
operation Manual
legacy™
pool and spa Heater
Model lrZ Millivolt
natural Gas or lpG
WarninG
For Your saFetY: This product must be installed and serviced by a contractor who is gas safe registered and
HWB1 certified. 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 flue 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.
WarninG
The GAS SAFETY (INSTALLATION AND USE) REGULATIONS 1998 as amended, place statutory requirements
on gas users.
This heater is certified to European requirements for use only as a swimming pool or spa heater. The heater must
not be used for any other purpose and must be installed and serviced by a qualified professional. The heater must
be operated strictly in accordance with the user's instructions and applicable laws.
If the heater is installed in a room, it must be separated from a living space, and adequate air supply and
ventilation must be provided and maintained.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
If these instructions are not followed exactly, a fire or explosion may result,
causing property damage, personal injury, or death.
Read this manual in its entirety. If these instructions are not followed exactly,
a fire or explosion may result, causing property damage, personal injury, or death.
installation and
operation Manual
English
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Table of Contents
Troubleshooting
Related Manuals for Zodiac Legacy LRZ
Summary of Contents for Zodiac Legacy LRZ
- Page 1 Improper installation and/or operation can create carbon monoxide gas and flue 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.
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Page 3: Table Of Contents
enGlisH page 3 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater table of Contents section 1. General information ....5 section 5. Water Connections ...... 14 Introduction ............ 5 Water Piping ..........14 Consumer Information and Safety ....5 Hydraulic Head Loss ........ - Page 4 page 4 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual table of Contents (Continued) section 11. professional Maintenance and service ..30 11.1 General Information ........30 11.2 Natural-Draft Combustion System ....30 11.3 Heater Components and Their Operation ..30 11.4 Electrical Troubleshooting ......
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Page 5: Section 1. General Information
Operating instructions for the user begin in Section 8. during the first three (3) months of pregnancy Consult the Zodiac factory, or local factory representa- (which could result in the birth of a brain- tive, with any questions regarding this equipment. The damaged or deformed child). -
Page 6: Swimming Pool Energy Saving Tips
Carefully monitor the water temperature of your Directive (EMC Directive; 2004/108/EC). pool in the summertime. You can reduce heater All Zodiac heaters must be installed in accor- usage due to warmer air temperatures. dance with the local building and installation codes as Find the proper setting on the pool heater temper- per the utility or authorities having jurisdiction. -
Page 7: Specifications
Approved vent caps are available equipment. Improper installation or maintenance from your Zodiac distributor. See Section 12.2, can cause nausea or asphyxiation from carbon "Parts List", of this manual for the correct part monoxide in flue gases which could result in severe number. -
Page 8: Statutory Information
page 8 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual 194 mm 406 mm 264 mm 127 mm 203 mm 1041 mm 1000 mm 724 mm 333 mm Outdoor Flueless Heater Configuration Indoor Open Flue Configuration with Draft Hood Outdoor Flue Configuration with Vent Cap 95 mm Venting Dimensions... -
Page 9: General Installation Requirements
Check the rating plate on the heater or the Parts proximity to public access areas. List (Section 12) of this manual for the correct Zodiac draft hood or vent cap part number. See instructions 2.5.2... -
Page 10: Flooring
(3) sides. This prevents combus- Zodiac, is used. See the heater rating plate or the Parts tion gases from being diverted into living areas List (Section 12) of this manual for the appropriate base part number. -
Page 11: Indoor For Natural Gas Installation Only
Additional air must be supplied to compensate The Legacy heater can be installed indoors using for such exhaust. the draft diverter available from Zodiac, and a Type The information in Table 3 is not applicable in B11 flue system complying with the national and... -
Page 12: Vent Pipe Sizing And General Installation
Do not terminate the vent under decks, stairways, or car ports. obtained through your Zodiac 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 13: Inspection And Replacement Of Existing Vent System With New Components
Installation mended. pipework should be fitted and tested for gas soundness. Zodiac recommends the gas inlet pipe iMportant note: Do not use sheet metal screws at sizes listed in Table 5. the snap lock joints of gas vents. -
Page 14: Burner Pressure
Zodiac cannot be responsible for such es the burner pressure when turned clockwise and water loss or flooding or the damage caused by either decreases the burner pressure when turned counter- occurrence. -
Page 15: Automatic Flow Control Valve
enGlisH page 15 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater AQUAPURE MANUAL BY-PASS DETAIL MANUAL BY-PASS IS USED WHEN FILTRATION RATE EXCEEDS 125 GPM Figure 6. typical piping installation LRZ Pressure Drop vs Flow LRZ400 LRZ325 LRZ175 LRZ250 LRZ125 Water Flow (LPM) Figure 7. - Page 16 page 16 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual Water connection reversal is illustrated in Figures Caution 8 and 9. Proceed as follows: In order to prevent property damage or injury, en- sure that the wiring is handled and routed carefully For an existing installation, drain the heater by so as not to cause any damage to it.
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Page 17: Connections At Heater
enGlisH page 17 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater 12. Place the inlet/outlet header over the bolts and 21. Use plastic wire ties to refasten the temperature gasketed tubes on the left side of the tube assem- sensor, high limit switch and water pressure bly. - Page 18 5.1 bar. Follow these steps to install a pressure relief valve: To protect the threads while drilling, screw the brass adapter (included with the Zodiac PRV kit) into the blind threaded hole on the top of the inlet/outlet header.
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Page 19: Auxiliary Components, Chlorinators, Ozone Generators, And Sanitizing Chemicals
Failure to follow warning notices by excessive chemicals or improper ozonization is not and instructions may result in property damage, covered by the Zodiac warranty. Be sure to adhere to personal injury, or death. the following: •... -
Page 20: Auxiliary Time Clock Wiring
105°C (221°F) or greater. grid. Zodiac provides a special labeled earth bonding lug on the right side of the heater to accommodate this The length of the wire between the heater and requirement. -
Page 21: Section 7. Commissioning
Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury, or death. For indoor installations, as an additional measure of safety, Zodiac strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces. -
Page 22: Start-Up
page 22 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual the temperature control setting, an operating cycle is The heater may not start on the first try. Air in initiated by the automatic control. The temperature the gas line or other start-up situations may cause it to control circuit is closed, activating the gas valve and cycle. -
Page 23: Before Operating
enGlisH page 23 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater For Your saFetY read WarninG BeFore operatinG lp Gas Models: To avoid possible injury, fire and explosion, read and follow these precautions and WarninG: if you do not follow these instructions all instructions on this appliance before starting the exactly, a fi re or explosion may result, causing prop- erty damage, personal injury or loss of life. -
Page 24: Relighting The Heater
page 24 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual 8.3.2 relighting the Heater Control Knob If the pilot goes out, repeat steps 5 through 7 in with OFF, Pilot Section 8.3.1. Pilot Adjustment and ON Position 8.3.3 shut-down procedure To turn the main burner off, turn the rocker switch to OFF. -
Page 25: Section 9. Maintenance
Remove heater door. ties of the water. Be sure to keep your chemical levels within the values indicated in Table 7. Zodiac does Shut down the heater following the shutdown not warrant heat exchangers damaged by corrosive... -
Page 26: Spring Start-Up
After all water has drained from the heater, check 9.3.1 owner inspection for mineral buildup in the openings. Zodiac recommends that you inspect the heater Use compressed air to blow out any standing on a continual basis and especially after abnormal water remaining in the heat exchanger. -
Page 27: Professional Inspection
enGlisH page 27 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater 9.3.2 professional inspection Pilot, Thermopile and Thermocouple Position Inspections performed at least once a year by a qualified technician are required to maintain your Thermocouple Thermopile heater's safe and efficient operation. The following basic safety checks must be performed. -
Page 28: Section 10. Troubleshooting
page 28 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual section 10. troubleshooting 10.1 General Heater troubleshooting Table 8 lists some of the more common problems, causes and solutions encountered when running the heater. Most problems occur when the heater is being started for the first time after instal- lation or at spring start-up. - Page 29 enGlisH page 29 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater table 8. legacy troubleshooting Guide symptom Cause remedy Pump not oper- No power. Check circuit breakers and power source. ating Pump defective. Replace pump.* Incorrectly wired. Recheck wiring.* Pilot outage Inlet gas pressure too low.
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Page 30: Section 11. Professional Maintenance And Service
Heater Components and their service the Legacy model LRZ millivolt pool heater operation using Zodiac service procedures. Before calling for Gas Valve / Regulator - The gas valve controls service, however, the owner should check for obvious gas flow into the burner. It provides flow only problems. -
Page 31: Electrical Troubleshooting
enGlisH page 31 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater broken at any time, the gas valve is immediately ing sections. shut off and the heater stops firing. This voltage As stated at the beginning of this manual, some is also used to activate the gas valve's pilot coil of these procedures are hazardous. - Page 32 page 32 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual TEMPERATURE CONTROL TP/TH PRESSURE HIGH HIGH SWITCH LIMIT LIMIT GAS VALVE 12 13 42°C 52°C ROLL-OUT SWITCH 240°C (464°F) (108°F) (126°F) (FUSIBLE LINK) VENT TEMPERATURE PILOT PILOT LIMIT EARTH GENERATOR BONDING...
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Page 33: 11.4.2 Pilot Generator
enGlisH page 33 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater • Correct type of gas supplied roll-out switch (fusible link) has failed. This indicates • Correct gas supply pressure higher than normal temperatures in the component • Correct gas burner pressure compartment (vestibule). -
Page 34: 11.4.5 Limit Switches
page 34 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual 11.4.5 limit switches Less than 220mV at this point indicates that the wire connecting the high limits to the water pressure Since the limit switches are not easily accessible, switch is faulty or poorly connected. -
Page 35: Adjusting The Water Pressure Switch
The pressure switch is preset at the factory for activation at 14 kPa. Do not adjust the pressure switch if the heater is installed more than 4.57 m below the pool surface. Consult your local Zodiac representative for recommendations. On some installations, the piping from the heater... -
Page 36: Section 12. Replacement Parts
Allow the heater to operate for five (5) minutes To order or purchase parts for the Legacy pool or more. Note and record the thermometer and spa heater, contact your nearest Zodiac dealer or reading. Subtract pool water temperature from distributor. See the Zodiac web site at www.Zodiac. -
Page 37: Parts List
enGlisH page 37 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater 12.2 parts list Model no. order Model no. order description part no. description part no. pilot/igniter system Adapter Plate 125-400 R0478301-05 Pilot, Main Burner Assembly, Natural R0522101 45 * Clip R0500200 Pilot, Main Burner Assembly, LPG... -
Page 38: General Exploded View
page 38 enGlisH Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual 12.3 General exploded View... -
Page 39: Detailed Exploded View
enGlisH page 39 Installation and Operation Manual Legacy™ Model LRZM Pool/Spa Heater 12.4 detailed exploded View... - Page 40 2620 Commerce Way, Vista, CA 92081 1.800.822.7933 | www.ZodiacPoolSystems.com ZODIAC ® is a registered trademark of Zodiac International, S.A.S.U., used under license. All trademarks referenced herein are the property of their respective owners. ©2012 Zodiac Pool Systems, Inc. H0316500 Rev F 1204...