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LX and LT Low NOx Pool/Spa Heater

Page 3

Any changes to the heater, gas controls, gas

orifices, wiring, draft diverter, or improper installation
may void the warranty. If change is required to any of
the above, consult the factory.

1.5 Technical Assistance

Consult Waterpik Technologies or your local

Jandy distributor with any questions or problems
involving the specifications, installation, and operation
of your Jandy equipment. An experienced technical
support staff is ready to assist you in assuring the
proper performance and application of Jandy products.
For technical support call the Technical Service
Department at (707) 776-8200 extension 260.

1.6 Materials Installer Must Provide

1.6.1 Materials for All Applications

The following items are needed and are to be

supplied by the installer for 

all 

 LX/LT Low NOx

heater installations:

1.

The correct size gas pipe to supply gas from the
meter to the heater (see Section 4.1 ).

2.

A manually operated gas valve to be installed in
the gas line outside of the heater jacket.

3.

A suitable gas union joint to connect the heater to
the gas line outside of the heater.

4.

Plumbing items needed to provide a sediment
trap (drip leg) in the gas line between the manual
gas valve and the heater (see Section 4.1).

5.

A 115V AC or 230V AC power supply. A
junction box is not needed at the heater, connec-
tions are made inside of the heater jacket.

1.6.2 Materials for Special Applications

In addition to the items listed above, the follow-

ing items are needed for special applications.

1.

A factory authorized vent collar and any vent
pipe needed for indoor installations in the USA
and outdoor shelter installations in Canada (see
Section 3.3.2). Vent collars are available from
any Jandy distributor.

2.

Primer and cement suitable for cementing CPVC
pipe to PVC pipe and an appropriate coupling for
connecting the factory supplied CPVC pipe
nipples to PVC pool plumbing.

3.

A non combustible platform for installation on
combustible surfaces (see Section 2.3.3). Non
combustible bases are available from your Jandy
distributor.

1.7 Specifications

1.7.1 General Specifications

1.

Installation Location:
Certified for use:

In the USA:

Natural Gas:

Indoor and Outdoor

LP:

Indoor and Outdoor

In Canada:

Natural Gas :

Outdoor and Outdoor
Shelter

LP:

Outdoor and Outdoor
Shelter

2.

Minimum Clearance From Combustible Material:

See Table 2 in Section 2.3.2

3.

*Gas Pipe/Heater Gas Valve Connection:

Natural Gas:

3/4" NPT

LP:

3/4" NPT

*

For diameter of gas line from meter to heater see

  Table 5 in Section 4.1.

4.

Supply Gas Type:
Certified for use with:

Natural gas and LP

5.

Inlet Gas Supply Pressure:

Minimum

Maximum

Natural Gas:

5.0 "WC

10.5 "WC

LP:

10.0 "WC

14.0 "WC

6.

Water Pipe/Heater Connection:
*2" Unthreaded PVC or CPVC

*Other size pipes may be used. See Section
5.5 for details

7.

Water Flow Rate:

Maximum:

125 gpm (475 lpm)

Minimum:

30 gpm (110 lpm)

8.

Working Water Pressure:

Maximum:

75 psi

9.

Exhaust Vent Connection Size:

Model:
  250

7" Diameter

  400

9" Diameter

10.

Electrical Supply:

Either 115 Volts AC or 230 Volts AC.

11.

Modification of Heater for High Altitude:

LX and LT Low-NOx are normally shipped

from the factory in the low altitude (sea level)
operational configuration. When requested, the
heaters can be configured and  shipped for higher
altitudes. For field conversions to change altitude
configurations, manifold kits for mid altitudes and

Содержание LX

Страница 1: ...lowed exactly a fire or explosion may result causing property damage personal injury or death Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other ap...

Страница 2: ...20 6 4 Auxiliary Time Clock Wiring 21 6 5 RemoteOperation 21 SECTION 7 Operating Instructions 7 1 NormalOperation 23 7 2 Start Up 23 7 3 TemperatureControls 24 7 3 1 InformationDisplayed 24 7 3 2 Turn...

Страница 3: ...ure to read and comply with all of the warnings and cautions 1 2 1 Spa Hot Tub Safety Rules WARNING The following Safety Rules for Hot Tubs recommended by the U S Consumer Product Safety Commission sh...

Страница 4: ...cover will reduce heat loss conserve chemicals and reduce the load on filter systems 1 3 Warranty The LX and LT Low NOx heaters are sold with a limited factory warranty Details are specified on the ba...

Страница 5: ...t pipe needed for indoor installations in the USA and outdoor shelter installations in Canada see Section 3 3 2 Vent collars are available from any Jandy distributor 2 Primer and cement suitable for c...

Страница 6: ...am showing the heater s exterior dimensions and dimensions to critical connec tions on the heater Figure1 GeneralConfiguration Values shown are for both LX and LT models Heater Width Model Dim A Heate...

Страница 7: ...Check the rating plate on the heater or the Parts List Section 11 2 of this manual for the correct Jandy vent collar part number For specific installation information see Section 2 3 5 Indoor and Out...

Страница 8: ...4 inches 102 millimeters mm thick covered with sheet metal at least 24 gauge thick and extending beyond the full width and depth of the heater by at least 6 inches 153 mm in all directions The masonr...

Страница 9: ...us la saillie doit tre ouverte sur 3 c t s If the heater is installed close to a structure protect it from rain water runoff with rain gutters on the roof or other measures Do not locate the heater ne...

Страница 10: ...t collar The collar will accommodate vent piping of nominal 7 or 9 diameter see Table 4 depending upon the model of your heater See Figure 7 See vent installationsectionforimportantinformationon selec...

Страница 11: ...2 cm2 in2 cm2 250 L 63 406 126 813 400 L 100 645 200 1290 Area indicated is for one of two openings one at floor level and one at the ceiling so the total net free area would be double the figures ind...

Страница 12: ...r Shelter Installations All indoor installations and outdoor shelter installations require the addition of a factory approved vent collar The vent collar must be installed without modification All ven...

Страница 13: ...scines et cuves thermales sont con us pour tre utilis s avec du gaz naturel ou du gaz de p trole liqu fi GPL V rifiez l information inscrite sur la plaque signal tique du panneau int rieur pour vous a...

Страница 14: ...ecting a manometer to the pressure port on the outlet side of the valve The pressure will be zero when the heater is not running When the heater is operating the manifold gas pressure should be 3 0 WC...

Страница 15: ...operation of the switch In Figure10 TypicalPipingInstallation general the pressure switch can be adjusted to accommodate this effect if the heater water connec tions are no more than six feet below t...

Страница 16: ...ls are generally done before the installation of power and water to the heater If you need to reverse the heat exchanger on a previously installed heater be sure that all electrical power the gas supp...

Страница 17: ...ader s mating surface of any corrosion or debris Do not use any metal tools on the header surface Scratches may compromise the seal integrity 20 Place the inlet outlet header over the gasket on the le...

Страница 18: ...gas line will enter the heater 37 Use the button plug to cover the hole on the opposite side of the heater NOTE Be sure that the white fiber gasket is positioned on the top flange of the exhaust vent...

Страница 19: ...ill bit 4 Open the hole again by reaming it with a 1 2 inch drillbit CAUTION Initially drilling a 1 2 hole without reaming may cause the bit to grab on the plastic This may cause personal injury or da...

Страница 20: ...nstream of the heater and install an in line check valve between the heater and the feeder a minimum of 18 is required between the heater and the check valve Wire any electrical chemical feeder so tha...

Страница 21: ...LX and LT Low NOx Pool Spa Heater Page 19 Figure 18 LX and LT Low NOx Connections Schematic Wiring Diagram...

Страница 22: ...access to the leads See Fig 19 NOTE No external junction box is required 6 2 1 Converting the Heater for a 115V Power Source To convert the LX and LT Low NOx heaters to 115 Volt 60 Hz AC requires reve...

Страница 23: ...rom purging the residual heat from the heater when the heater turns off This situation will damage the heater The blower must be allowed to run for 45 seconds after the heater shuts off 6 5 Remote Ope...

Страница 24: ...er is first powered the display on the control will show RS ONLINE If there is an RS control connected to the heater it will sense the RS unit and remain online If an RS system is not connected to the...

Страница 25: ...ttings or a variety of other demands that might be encountered The heater has an internal safety system which allows operation in a variety of conditions and prevents operation when certain adverse co...

Страница 26: ...rn the pump off 23 hours after the start time e g If the start time is 2 00 PM then set the stop time at 1 00 PM This lets the filter system and heater operate continuously until the water reaches the...

Страница 27: ...ahrenheit Celsius temperature unit indicator The Model LT does not offer these features 7 3 2 Turning the Heater On or Off When power is supplied to the Model LX heater the control goes into a diagnos...

Страница 28: ...mentarily lost the thermostat settings will remain the same Also note that the heater should not be used to maintain water temperatures at or below 70 F 21 C This will damage the heater 7 4 Lighting a...

Страница 29: ...ckwise to ON 9 Replace control access panel A This appliance does not have a pilot light It is equipped with an ignition device which automatically lights the heater Do NOT try to light the burners by...

Страница 30: ...will increase back pressure enough for the heater to operate properly Make sure the pool filter is clean before making any pressure switch adjustment A dirty filter will restrict the water flow and t...

Страница 31: ...el to the Off position 3 Start the filter pump 4 After three minutes note and record the ther mometer reading This is the pool water tempera ture 5 Start the heater by setting the control panel to eit...

Страница 32: ...50 ppm Total Dissolved Solids TDS Less than 2000 ppm Copper 0 ppm Concentration levels taken from Basic Pool and Spa Technology published by NSPI National Spa and Pool Institute 8 2 Seasonal Care CAUT...

Страница 33: ...age or death WARNING Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury or death AVERTISSEMENT Une installatio...

Страница 34: ...face away from the burner area opening to prevent any risk of personal injury ATTENTION Pour votre s curit personnelle lorsque vous mettez l appareil en marche tenez votre t te et votre visage loin du...

Страница 35: ...e ignition controller in both the LX and LT Low NOx model heaters has an LED light that flashes to indicate various different faults Table 9 lists the LED codes and the corresponding fault description...

Страница 36: ...0 3 chamber pressure draft B2 Decrease draft openings by sliding damper beneath burners see Section 10 3 C Rich fuel air mixture C Decrease draft openings by sliding damper High gas heat content benea...

Страница 37: ...efer to qualified service personnel AIR FLO SW air flow switch 1 Broken split pinched or disconnected fan switch tubing 1 Check tubing and replace if necessary 2 Fan not operating 2 Correct fault or r...

Страница 38: ...quat peut entra ner des blessures corporelles ou des dommages la propri t Pour cette raison l appareil de chauffage doit tre entretenu et r par uniquement par un technicien professionnel qualifi 10 1...

Страница 39: ...lving burner heat exchanger or flue collector removal must be conducted with this in mind 10 3 2 Field Service and Adjustment As with all gas fired appliances the first order of business is to verify...

Страница 40: ...it switches prevent excessive water temperature one within the heat exchanger and one for water leaving the heater If either senses excessive temperature burner operation is interrupted 6 Water Pressu...

Страница 41: ...igure 39 The voltages measured between any two of these four points will be determined by the voltage supplied to the transformer see Table 13 for expected voltages If the voltages measured do not fal...

Страница 42: ...s that the wire harness between the controller and the water pressure switch is good If there is no voltage at test point 7 look for a loose connection or replace the ten pin wire harness If there is...

Страница 43: ...s is detected at this point the devices in this circuit are closed and the circuit is workingproperly If there is no voltage either the fusible link or the contacts of the manual reset switch are open...

Страница 44: ...est point 28 during the trial for ignition There should an audible click when the valve opens If there is voltage at test point 28 but the gas valve does not open replace the valve 10 5 3 8 Igniter Ig...

Страница 45: ...that the power distribution circuit board has shorted and needs to be replaced If the voltage is correct move the red lead to the connection at the igniter wire quick disconnect test point H No volta...

Страница 46: ...Page 44 Figure 39 Test Point Identification Diagram...

Страница 47: ...LX and LT Low NOx Pool Spa Heater Page 45...

Страница 48: ...rrect voltage is measured at this point move the red meter lead to the igniter wire quick disconnect test point I No voltage here during the trial for ignition means that the wire between the power di...

Страница 49: ...essure Switch 2 psi All R0013200 36 Siphon Loop All R0334600 Key Model Order No Description No Part No Electrical Continued 37 High Limits Set All R0023200 38 HighLimit135 F All R0022700 39 High Limit...

Страница 50: ...NEXT PAGE FOR DETAILS 5 SEE NEXT PAGE FOR DETAILS 8 9 14 SEE NEXT PAGE FOR DETAILS 18 19 20 21 43 34 35 36 69 53 51 22 23 52 70 67 56 55 60 62 64 61 59 58 66 65 63 60 68 71 57 28 37 SEE NEXT PAGE FOR...

Страница 51: ...LX and LT Low NOx Pool Spa Heater Page 49 11 4 Detailed Exploded View 33 25 27 35 49 50 42 17 15 16 32 31 28 30 29 10 11 3 2 11 12 38 41 40 41 39 4 75 6 7 5...

Страница 52: ...Use of non factory authorized parts or accessories in conjunction with the product s 8 Chemical contamination of combustion air or improper use of sanitizing chemicals such as introducing sanitizing c...

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