Jandy pool/spa heater Installation And Operation Manual Download Page 29

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LX and LT Pool Heaters

Page 27

SECTION 5.

Parts List

5A. General Information

To order or purchase parts for the Waterpik

Technologies LX or LT pool/spa heater, contact your nearest

Waterpik Technologies dealer or distributor. If they cannot

supply you with what you need, contact the Customer Service

Manager at Waterpik Technologies.

5B. Part Numbers

Key

Model

ORDER

No. Description

No.

PART NO:

Water Components

Complete Heat Exchanger (Copper)

250,400

R0326303,05

Tube Assy.(Cu), w/ Hdwr & Gaskets

250,400

R0326603,05

Heat Exchanger Baffles

(Set of ten including end baffles)

250,400

R0334403,05

Front Header, w/ Hardware & Gaskets All

R0326900

Rear Header, w/ Hardware & Gaskets All

R0327000

By-Pass Assy, w/ Hardware & Gaskets All

R0327100

Gasket, Bypass Assy

All

R0336700

Spring, Bypass

All

R0327200

Coupling Nut Kit, w/Compression Ring and Gasket,

(Set of two)

All

R0327300

10 Compression Ring w/ Gasket, I/O Header,

(Set of two)

All

R0327400

11 Gasket, Header (front or rear)

All

R0327500

12 Header Drain Plug w/gasket (Set of 3) All

R0335900

13* Heat Exch. Hardware Kit & Gaskets

All

R0327600

Gas Components

14 Burner Tray Weldment

250,400

R0327703,05

15 Burners (Ea.)

All

L0052300

16 Manifold, Gas

250,400

R0327803,05

17 Nat. Orifice (0-3K ft) (Set of 20)

All

R0327900

17 Nat. Orifice (3K-6K ft) (Set of 20)

All

R0328000

17 Nat. Orifice (6K-9K ft) (Set of 20)

All

R0328100

17 LP Orifice (0-5K ft) (Set of 20)

All

R0328200

17 LP Orifice (5K-10K ft) (Set of 20)

All

R0328300

18 Anti-Rotation Bracket

All

R0331800

19 Gas Valve Nat w/ Street Ell

All

R0336800

19 Gas Valve LP w/ Street Ell

All

R0336900

Exhaust System

20 Flue Collector

250,400

R0331703,05

21 Blower Assy.

All

R0329800

22 Gasket w/ Blower Mounting Hardware All

R0329900

23 Flue Vent

All

R0331500

24 Indoor Vent Collar

250,400

R0331403,05

25 Outdoor Grill

All

R0328500

26* Vent Hardware Kit

All

R0331600

Electrical

27 Transformer

All

R0328700

28* Fuse Assy, In-line

All

R0337100

29 Blower Pressure Switch

All

R0302000

30 Temperature Sensor

All

R0011800

Key

Model

ORDER

No. Description

No.

PART NO:

Electrical (continued)

31 Gasket, Temperature Sensor

All

E0116400

32 Plastic Sleeve, Temperature Sensor

All

10444900

33 Retainer Bracket, Temp. Sensor

All

10447300

34 Screw, Retainer Bracket

All

F0009100

35 Ignition Control

All

R0328800

36 Pressure Switch Assy

All

R0334500

37 Pressure Switch, 2 psi

All

R0013200

38 Siphon Loop

All

R0334600

39 High Limits Set

All

R0023200

40 High Limit 135°F

All

R0022700

41 High Limits 150°F

All

R0023000

42 Harness, High Limit Switch

All

R0334700

43 Retainer Plates, High Limit (Set of 2)

All

R0336500

44 Hot Surface Ignitor

All

R0337000

45 Exhaust Temp. Limit Switch

All

R0329400

46* Wire Harnesses Complete

All

R0329500

47* Wire Harness, Power Transformer

All

R0330900

48* Wire Harness, Ignition Control

All

R0331000

49* Wire Harness, Gas Valve

All

R0331100

50* Wire Harness, Safety Loop

All

R0331200

51 Wire Harness, 120 Volt Power Plug

All

R0336200

51 Wire Harness, 240 Volt Power Plug

All

R0336300

52 Wire Harness, 15 Pin Connector

All

R0336400

53 Terminal Block for Firemans Switch

All

R0097800

54 Temperature Control W/ Bezel

-LX

All

R0329600

54 Temperature Control W/ Bezel

-LT

All

R0350500

55 Flame Sense Rod

All

R0334800

56 Fusible Link

All

R0012200

Jacket Assy.

57 Door w/ Latch

250,400

R0330003,05

58 Door Latch Assembly w/ Handle

All

R0334900

59 Cover Panel, Raceway

250,400

R0335103,05

60 Panel, Side, Lower (fits left or right)

All

R0330100

61 Panel, Right Side, Upper

All

R0330200

62 Cover Panel, Exhaust Switch

All

R0336600

63 Panel, Left Side, Upper

All

R0335200

64 Cover Plate, I/O Header Side

All

R0335300

65 Cover Plate, Return Header Side

All

R0335400

66 Cover Panel, Left Side

All

R0335500

67 Rear Panel

250,400

R0330303,05

68 Corner Posts

All

R0330400

69 Top Assy.

250,400

R0330503,05

70 Cover, Temperature Control

All

R0330600

71 Combustion Chamber Assy.

250,400

R0330703,05

72 Base Panel

250,400

R0335603,05

73 Igniter Box Assembly

All

R0335700

74 Bracket, Fusible Link

All

R0337200

Optional

74* Non Comb. Base

250,400

R0330803,05

75* Touch-up Paint

All

R0335800

76* Temperature Rise Measurement Kit

All

R0336000

77 Pressure Relief Valve

All

R0336100

* PARTS NOT SHOWN ON KEY VIEW

NOTES:

1. When ordering a kit for a model 250 specify as R#####-03,

When ordering a kit for a model 400 specify as R#####-05,

2. All hardware sets contain all pieces necessary for assembly,

including gaskets. Not shown.

3. Gaskets and hardware are included in all kits that involve the

removal of a gasket as part of the procedure to replace a part.

Summary of Contents for pool/spa heater

Page 1: ...lt 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 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 I...

Page 2: ...ief Valve 14 2I 5 Automatic Chlorinators Chemical Feeders 15 2J Start Up and Adjustment 15 2J 1 Normal Operation 15 2J 2 Start Up 15 2J 3 Gas Pressure 16 2J 4 Adjustment of Water Pressure Switch 16 2J 5 Water Temperature Rise 17 SECTION 3 Operating Instructions 3A Start Up Procedure 18 3B Temperature Controls 18 3B 1 Information Displayed 19 3B 2 Turning The Heater On Or Off 19 3B 3 Setting Pool A...

Page 3: ...luded in a plastic bag inside the heater and on the back cover of this manual The home owner should fill out the warranty registration card included in the plastic bag and return it to Waterpik Technologies The warranty does not cover damage caused by improper installation operation or field modification or damage to the heat exchanger caused by corrosive water See Section 3D for guidelines on poo...

Page 4: ...proper operation 2C Heater Location 2C 1 Installation Information The LX and LT can be installed outdoors or indoors as outlined in later sections In either case location must be selected with consideration of vent gas exhaust and in the case of indoor installation the location must have suitable provisions for combustion and ventilation air Avoid placing the heater in locations where it can cause...

Page 5: ...lso apply such as provision of ample uncontaminated air for combustion and ventilation 2F Indoor Installation 2F 1 Preparation of Heater for Indoor Installation If the LX or LT is to be installed indoors its exhaust discharge grill must be converted to a collar for vent pipe connection The necessary vent collar gasket and screws can be ordered as parts kit R0331403 or R0331405 see parts list in Se...

Page 6: ...n Codes for Gas Appliances CAN 1 B149 1 2 Undersize pipe can result in inadequate venting and oversize pipe can result in vent condensation In either case the result can be release of combustion products to the indoors This can cause serious injury or death by carbon monoxide poisoning or asphyxiation 2F 2 Special Location Requirement Virtually all local installation codes require that a heater in...

Page 7: ... be a Category I Fan Assisted appliance They are intended for standard vertical venting per tables provided in most local codes for Category I Fan Assisted appliances If the local code does not include such tables refer to the National Fuel Gas Code Z223 1 or the Canadian Installation Codes for Gas Appliances CAN 1 B149 1 2 Note that the tables for fan assisted appliances include both maximum and ...

Page 8: ...aximum 10 5 2 7 14 3 5 Figure 7 The Proper Design for a Sediment Trap Drip Leg Table 4 Natural Gas Pipe Size Requirements Distance from Gas Meter 0 50 feet 50 100 feet 100 200 feet Heater 0 15 m 15 30 m 30 60 m Size in in in 250 1 1 1 4 1 1 4 400 1 1 4 1 1 2 1 1 2 Notes 1 These numbers are for natural gas 0 65 Sp Gr and are based on 1 2 inch 3 45 kPa water column pressure drop Check supply pressur...

Page 9: ...EMP SENSOR J4 1 J4 2 0 6 1 6 1 7 5 7 5 32 5 6285 5 5 3 5 5 3 5 5 5 3 5 5 3 5 5 5 5 5 5 5 5 5 5 2 8 1 6 5 5 2 8 1 6 5 1 6 5 9 1 1 7 9 3 6 3 6 9 1 7 9 1 7 3 6 3 6 0 9 0 9 0 9 0 9 7 5 3 5 6 6 8 5 6 7 0 7 6 7 6 0 1 8 5 6 7 9 1 7 6 7 2 5 3 5 6 6 8 5 6 7 6 9 9 1 7 2 1 2 1 7 5 2 1 9 9 8 6 5 7 5 1 6 2 5 0 5 7 5 1 6 2 5 0 5 5 5 5 2 5 2 5 2 5 5 5 3 1 3 8 3 1 5 3 7 9 2 5 5 9 Wiring Diagram 7 2 7 5 8 5 5 2 1 ...

Page 10: ... connected to either tab on the terminal block the connections are not polarity sensitive Plug the fifteen pin connector into the receptacle The connector is keyed so it will fit in only one orientation Electrical wiring must be in accordance with the latest edition of the National Electric Code NEC ANSI National Fire Protection Association NFPA 70 unless local code requirements indicate otherwise...

Page 11: ...e it A number will appear on the display for approximately 5 seconds This first number can be ignored After the first number disappears a second number will appear in the display window It will consist of 4 digits followed by a revision level REV _ If the revision level displayed here is at H or higher it will accommodate a Laars LX heater without any modification If the chip is at a revision G or...

Page 12: ...er is disabled The heater functions can be controlled only at the RS unit However sensor data is displayed at both the heater and the RS unit To temporarily use the heater controls use a thin object to depress the button marked RS SERVICE The RS ONLINE indicator will disappear from the heater display All functionality has now been returned to the control on the heater In this mode the RS unit has ...

Page 13: ...ontrol panel There are quick disconnects at the end of the wires 15 Remove the inlet outlet header side cover plate located under the inlet outlet header There are four philips head screws one in each corner holding it in place 16 Slide the upper right side panel up and out of the corner posts and place it aside 17 Remove the left side cover panel held to the lower panel with two philips head scre...

Page 14: ... one in each corner 26 Route the wires that attach to the temperature sensor along the copper siphon loop back to the right side of the heater Reconnect the wires to the tabs on the back of the control panel marked as J4 1 and J4 2 27 Use plastic wire ties to refasten the temperature sensor and high limit switch wires to the copper siphon loop Bundle the wires near the control panel and fasten the...

Page 15: ...he top of the heater Be careful not to pinch any wires Replace the two screws on the bottom flange to hold the cover in place 47 Replace the front panel door 2I 2 Pool Spa Piping Systems Figure 15 illustrates typical piping for pool equipment in pool spa combination pools With their electronic temperature controls the LX and LT are particularly suited for this type of pool installation The heater ...

Page 16: ... Technologies PRV kit into the blind threaded hole on the top of the inlet outlet header 2 Using the countersink in the center of the blind hole as a guide drill a 1 4 inch hole through the plastic 3 Open the hole by reaming it with a 3 8 inch drill bit 4 Open the hole again by reaming it with a 1 2 inch drill bit Initially drilling a 1 2 inch hole without reaming may cause the bit to grab on the ...

Page 17: ...tton until the indicator on the LCD screen aligns with OFF Now press and release the button again until the indicator on the LCD screen aligns with the desired setting either POOL or SPA To reset the model LT press and release the mode button until the indicator lights for the SPA and POOL settings are off Then press and release it again until the indicator light for the desired setting is back on...

Page 18: ...ff Setting the switch to close at too low of a flow can damage the appliance Do not operate this heater outdoors at temperatures below 20 degrees Fahrenheit F 7 degrees Celsius C 2J 2 Start up Confirm that pool water is flowing normally through the pool system and equipment Start the heater in accordance with the Operating Instructions section of this manual with particular attention to the lighti...

Page 19: ...low even though flow through the filter system will vary depending on how dirty the filter is For most installations an external bypass valve is not needed in the heater water piping This is due to the large size of the heater s internal bypass valve If the pump flow rate is known to significantly exceed 125 gpm 7 9 l s an external bypass may be needed to assure proper heater operation Water flow ...

Page 20: ... from this reading This difference is the temperature rise Refer to Table 8 If your measured temperature rise is within the range designated for your heater skip steps 6 through 8 6 Locate the bypass adjustment screw on the right hand side of the header see figure 20 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...

Page 21: ...en there is water flowing through the heater the filter pump is on the water temperature is displayed in the right most of two bar graphs in the center of the screen This bar graph is labeled as Water Temperature The selected thermostatic setting either Pool or Spa is displayed as a bar graph directly to the left of the water temperature bar graph This bar graph is labeled as Thermostat Setting No...

Page 22: ...the heater is OFF It is now necessary to set the thermostat to the desired pool or spa setting 3B 3 Setting Pool and Spa Temps Changing from Fahrenheit to Celsius The Model LX heater displays temperature in Fahrenheit units when powered up To switch to Celsius press the F C button Once the desired temperature units are selected the thermostat can be set The left most button below the LCD screen la...

Page 23: ... 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 replace fan Refer to qualified service personnel 3 Fan running slow or premature fan failure 3 Verify proper wiring for 120VAC or 240VAC Refer to qualified service personnel 4 Air flow restricted at intake or discharge 4 Check for proper clearances around ...

Page 24: ...alve control knob counterclockwise to ON see Figure 22 5 Replace the heater door 6 Turn on electrical power to the heater 7 Turn on the filter pump 8 Set the heater controls to the SPA position mode If the temperature of the water exceeds the thermostat setting it is necessary to increase the thermostat setting to exceed the water temperature Adjust the thermostat setting to be greater than the wa...

Page 25: ...o to next step 8 Turn gas control knob counterclockwise to ON 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 hand B BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO I...

Page 26: ...he week It should be reset to the 78 F 26 C level before expected usage keeping in mind to allow enough lead time for the water to reach the desired temperature 3D 2a Spa Water Chemistry Maintaining safe water conditions in a spa can only be done by regular water changes and the proper addition of sanitizing chemicals Kits are available from your local pool supply dealer for making the various tes...

Page 27: ...eater is not going to be used for a long period of time shut it down completely following the instructions in Section 3C 2 Shutdown or the lighting and shutdown instructions posted inside the heater 3G 2 Winterizing If you don t plan to use the pool or spa over the winter and your area is subject to freezing temperatures have a qualified professional technician perform the following steps to prote...

Page 28: ...perature control g Control circuit fuse 6 Perform a temperature rise test in accordance with Section 2J 5 7 If the heater is equipped with a pressure relief valve clean any accumulated corrosion and make sure that water runs freely through it 8 Inspect combustion chamber and burner for corrosion and indication of improper operation 9 Regularly inspect electrical controls for deterioration Repair a...

Page 29: ...10444900 33 RetainerBracket Temp Sensor All 10447300 34 Screw RetainerBracket All F0009100 35 IgnitionControl All R0328800 36 Pressure Switch Assy All R0334500 37 Pressure Switch 2 psi All R0013200 38 SiphonLoop All R0334600 39 High Limits Set All R0023200 40 High Limit 135 F All R0022700 41 High Limits 150 F All R0023000 42 Harness High Limit Switch All R0334700 43 Retainer Plates High Limit Set ...

Page 30: ...SEE NEXT PAGE FOR DETAIL 20 21 22 23 25 SEE NEXT PAGE FOR DETAIL 44 54 55 57 SEE NEXT PAGE FOR DETAIL 58 59 60 60 61 63 64 65 66 67 68 69 70 71 72 73 10 9 SEE NEXT PAGE FOR DETAIL 45 24 62 74 56 36 38 37 5C Exploded View 5C 1 Overview 77 ...

Page 31: ...LX and LT Pool Heaters Page 29 2 3 4 5 7 8 11 11 12 16 17 15 18 19 14 35 27 29 37 42 40 41 52 53 51 32 31 30 34 33 43 43 6 5C 2 Detail View 77 ...

Page 32: ...horized 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 chemicals upstream of the heater and cleaner hose or through the skimmer 9 Overheating incorrect wire runs improper electrical supply collateral damage caused by failure of O Rings DE grids or cartridge elements or damage c...

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