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Legacy™ Model LRZM Pool/Spa Heater   

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   Installation and Operation Manual

8.3.2  relighting the Heater

If the pilot goes out, repeat steps 5 through 7 in 

Section 8.3.1.

8.3.3  shut-down procedure

1.  To turn the main burner off, turn the rocker 

switch to OFF.

2.  To turn the heater off (including the pilot), turn 

the gas valve knob to the OFF position.

8.4 

turning the Heater on/off and  

setting the temperature Control

The temperature control (see Figure 20) is 

calibrated at the factory and covers a range from 

approximately 21°C to 40°C (70°F to 104°F). Use an 

accurate pool thermometer to determine the best water 

temperature for your use. 

The Legacy temperature control panel has a 

rocker switch to turn the heater on and off. It also has 

a rotary dial to set the desired thermostat setting (see 

Figure 20).

Once the heater has been lit by following the 

safety and lighting procedures in Section 8.3, set the 

toggle switch on the control panel to "ON" to start the 

heater operation. If the heater senses that the pump 

is on and the thermostat setting is higher than the 

temperature of the pool/spa water, the pilot will ignite 

the main burners.

 Caution

In order to prevent property damage, the heater is 

designed to run only when the filter pump is run

-

ning. If the heater does not immediately turn off 

when the pump turns off, turn the heater off at the 

control panel. The heater's pressure switch may 

need adjusting (see Section 11.5)

2.  Turn the gas control knob clockwise until it stops 

at the OFF position (see Figure 19).

3.  Wait five (5) minutes before lighting the pilot.

4.  Turn the knob on the gas valve counterclockwise 

to PILOT, then push the control knob all the way 

and hold down.  Push the button of the sparker, 

repeating until confirming that the pilot lights by 

observing the reflection on the burner tray mirror. 

Continue to hold the control knob in for about 

one (1) minute after the pilot is lit.  If it goes out, 

repeat Steps 3 and 4.

5.  Release the control knob and verify that the pilot 

is lit.

6.  If the pilot burner does not remain lit when the 

button is released, press and release the red 

button. Wait at least three (3) minutes and then 

repeat the lighting procedure from step 4. 

7.  If the pilot cannot be established, check that the 

pilot burner flame correctly envelops the thermo

-

couple tip by 10 to 13 mm. If not, check that the 

pilot adjustment screw on the gas control (see 

Figure 19) is fully unscrewed, then turn it one (1) 

turn back in. Check that the thermocouple lead 

connections at the gas control and at the overheat 

thermostat are clean and secure. Repeat from 

Step 4.

8.  Turn gas valve knob to ON. Replace the service 

door.

9.  Turn the rocker switch to ON.
10.  Set temperature control to against the Temp-Lok 

tab. The main burner should light. Until the water 

reaches a temperature of about 21°C (70°F), it is 

normal to have some water accumulating in the 

base of the heater.

11.  Set the time clock, if one is installed.

Figure 20.  temperature Control

H0286600

Figure 19.  natural Gas/propane Control Valve

Control Knob

with OFF, Pilot

and ON Position

Regulator

Pilot Adjustment

Содержание Legacy LRZ

Страница 1: ...wed exactly a fire or explosion may result causing property damage personal injury or death H0316500 Rev F WARNING The GAS SAFETY INSTALLATION AND USE REGULATIONS 1998 as amended place statutory requi...

Страница 2: ......

Страница 3: ...3 3 Inspection and Replacement of Existing Vent System with New Components 13 Section 4 Gas Connections 13 4 1 Gas Supply and Piping 13 4 2 Burner Pressure 14 4 3 Special Precautions for LPG 14 Secti...

Страница 4: ...11 4 1 Gas Valve 31 11 4 2 Pilot Generator 33 11 4 3 Fusible Link 33 11 4 4 Fireman Switch and External Interlocks 33 11 4 5 Limit Switches 34 11 4 6 Water Pressure Switch 34 11 4 7 Temperature Contro...

Страница 5: ...symbol Be sure to read and comply with all of the warnings and cautions 1 2 1 Spa Hot Tub Safety Rules WARNING Elevated water temperature can be hazardous Consult heater operation and installation ins...

Страница 6: ...warranty does NOT cover damage caused by improper assembly installation operation or field modification Also damage to the heat exchanger by corrosive water is NOT covered by the warranty See Section...

Страница 7: ...areas Install the Legacy Model LRZ millivolt heater vent caps and draft hoods in accordance with the procedures in this manual local codes and ordinances and in accordance with the latest edition of t...

Страница 8: ...riate ventilation directly to the outside WARNING The Legacy heater is certified to European require ments for use only as a swimming pool or spa heater The Legacy heater must not be used for any othe...

Страница 9: ...onsible for such water loss or flooding or result ing damage The Legacy Model LRZ millivolt heater may be installed indoors or outdoors as outlined in later sections Location of the heater below or ab...

Страница 10: ...f the alcove must be covered by a noncombustible panel 2 5 4 Outdoor Installation The Legacy Model LRZ millivolt heater can be installed in the low profile Type A flueless configu ration as received f...

Страница 11: ...n excess of 60 kW total rated input Exhaust Fans or Vents Any equipment which exhausts air from the room where the heater is installed can deplete the combustion air supply or reverse the natural draf...

Страница 12: ...either case the result can be release of combustion products to the indoors This can cause serious injury or death by carbon monoxide poison ing or asphyxiation All indoor installations and outdoor sh...

Страница 13: ...t least five 5 feet in vertical height above the draft hood outlet Double wall or equivalent vent pipe is recom mended IMPORTANT NOTE Do not use sheet metal screws at the snap lock joints of gas vents...

Страница 14: ...about specific installation restrictions in your area Section 5 Water Connections 5 1 Water Piping Figure 6 illustrates typical piping for pool equip ment in pool spa combination pools For normal inst...

Страница 15: ...ions have been written to include the steps needed when reversing the water connections on an existing installation If you are reversing the headers on a new installation some steps will be ignored Wh...

Страница 16: ...remove the coupling nuts from the header and disconnect the water supply from the heater 9 Remove the 10 bolts and washers from the inlet outlet header and remove the header from the tube assembly 10...

Страница 17: ...G COUPLING NUT PVC OR CPVC PIPE 21 Use plastic wire ties to refasten the temperature sensor high limit switch and water pressure switch wires to each other Bundle the wires near the control panel and...

Страница 18: ...by reaming it with a 9 5 mm 3 8 inch drill bit 4 Open the hole again by reaming it with a 12 7 mm 1 2 inch drill bit CAUTION Initially drilling a 12 7 mm 1 2 inch hole without reaming may cause the bi...

Страница 19: ...cal require ments exists In the event no such state or local requirement exists the installer or maintainer must be a professional with sufficient experience in pool equipment installation and mainten...

Страница 20: ...any residual heat contained in the heat exchanger back to the pool To install a time clock auxiliary switch into the heater wires see Figure 16 1 Remove heater door 2 Remove the factory installed wir...

Страница 21: ...to manual ON OFF operations of any controls fitted in the gas control circuit 12 Check the operation of the flame failure safety device using the following steps a Extinguish the main burner and pilot...

Страница 22: ...d shutdown instructions can also be found attached to the wall inside the control compartment door See Figure 18 1 Remove the service door on the front of the heater the temperature control setting an...

Страница 23: ...intained between 7 4 and 7 6 when operating unit see section entitled Water Chemistry in operating manual 3 BACKWAshing Turn heater off 20 minutes before backwashing or shutting down filter to prevent...

Страница 24: ...rn the gas control knob clockwise until it stops at the OFF position see Figure 19 3 Wait five 5 minutes before lighting the pilot 4 Turn the knob on the gas valve counterclockwise to PILOT then push...

Страница 25: ...aking place possibly due to a low pH value combined with other chemistry problems The condi tion can be corrected by changing the spa water and closely monitoring the pH factor and chemical proper tie...

Страница 26: ...njury or death 9 3 1 Owner Inspection Zodiac recommends that you inspect the heater on a continual basis and especially after abnormal weather conditions The following basic guidelines are suggested f...

Страница 27: ...temperature limit 8 Perform a temperature rise test in accordance with Section 11 6 9 If the heater is equipped with a pressure relief valve check for corrosion in and around the valve With the filter...

Страница 28: ...ubleshooting 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 insta...

Страница 29: ...gas supply B Low burner gas pressure C Heater size inadequate D Low temperature rise A Gas meter too small Gas line from meter to heater too small B Gas pressure on heater burner should be adjusted to...

Страница 30: ...ws into the burner a negative pressure is created at the opening of the burner This negative pressure pulls air into the burner with the gas and mixes the two together As the gas air mixture flow thro...

Страница 31: ...lot generator and control circuits and where to take measurements Location numbers and letters in circles have been added and will be referenced in the follow ing sections As stated at the beginning o...

Страница 32: ...16 11 12 13 14 1 4 5 2 3 17 TEMPERATURE CONTROL ROLL OUT SWITCH FUSIBLE LINK FIREMAN SWITCH PRESSURE SWITCH HIGH LIMIT GAS VALVE TH TP PILOT GENERATOR PILOT IGNITER BK W W R BK BLACK R RED W WHITE H0...

Страница 33: ...st point 4 the roll out switch fusible link has failed This indicates higher than normal temperatures in the component compartment vestibule Normal component compart ment temperature is well below 148...

Страница 34: ...o voltage here means that the limit switch is open and must be replaced If voltage is detected at test point 12 move the black lead of the meter to the terminal of the water pressure switch where the...

Страница 35: ...clean before making any pressure switch adjustment A dirty filter will restrict the water flow and the pressure switch cannot be adjusted properly To adjust the pressure switch refer to Figure 26 and...

Страница 36: ...the header see Figure 22 Loosen the nut so that the screw can be adjusted A slight water leak past the nut may be expected Turn the screw counterclockwise to decrease the tempera ture rise and clockwi...

Страница 37: ...hield Partition 125 400 R0478201 05 41 Flue Collector Assembly 125 400 R0470501 05 42 Outdoor Vent Cap 125 175 R0491606 42 Outdoor Vent Cap 250 400 R0491603 05 43 Indoor Draft Hood 125 175 R0499606 43...

Страница 38: ...Legacy Model LRZM Pool Spa Heater Installation and Operation Manual 12 3 General Exploded View 28 61 48 66 72 71 70 49 77 64 65 76 74 10 34 35 61 51 70 75 79 27 46 47 5 42 43 44 39 40 38 41 62 63 68 6...

Страница 39: ...NGLISH Installation and Operation Manual Legacy Model LRZM Pool Spa Heater 12 4 Detailed Exploded View 37 29 48 52 60 52 55 54 32 31 33 53 57 59 7 57 52 14 14 12 13 9 8 11 21 23 25 21 36 5 19 15 18 24...

Страница 40: ...81 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 ow...

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