Pentair 250, 300 installation manual Description QTY

Page 34

34

MiniMax NT Low NOx Single Voltage Replacement parts

ITEM

DESCRIPTION

QTY.

250

400

1

Exhaust Grill

1

471592

2

Gasket, Exhaust Grill

1

471701

3

Top Cover

1

471692

471591

4

Exhaust Assy.

1

471995

471996

5

Shut-off Safety Switch, Exhaust

1

471714

6

Blower

1

471741

7

Gasket, Blower

1

471610

8

Flue Collector Assy.

1

472007

472005

9

Return Manifold Assy.

1

471991

10

Bolt, Heat Exchanger

16

471622

11

Washer, Heat Exchanger

16

072184

12

Fire box Assy.

1

471835

471821

13

Heat Exchanger Assy.

1

471785

471838

14

Baffle, Heat Exchanger

8 / 16 (250 / 400)

471641

471640

15

Thermistor Probe

1

471566

16

HI-Limit Thermostat-115° F.

1

471587

17

Hi-Limit Thermostat-150° F.

1

471694

18

Water Pressure Switch

1

471672

19

Main Manifold Assy.

1

471992

20

Adapter, Bulkhead Ring

2

274440

21

Adapter, Bulkhead, 2 in.

2

471441

22

Gasket, Fin Tube, Seal

18

070951

23

Flow Valve Assy.

1

471750

24

Gas Pressure Switch

1

471506

25

Sub-Manifold, Gas Supply

1

471597

26

Gas Valve-Natural Gas

1

471601

27

Burner Tray Assy.

1

471836

471822

28

Igniter

1 / 2 (250 / 400)

471696

29

Gas Manifold Assy.

1

472003

472001

30

Burner

5 / 8 (250 / 400)

471668

31

Face Plate

1

471819

471820

32

Jacket, Upper Panel, Left

1

471575

33

Jacket Corner

4

471581

34

Jacket Divider

1

471651

471580

35

Jacket, Lower Panel, Left

1

471647

36

Base

1

471645

471573

37

Jacket Back

1

471669

471574

38

Bracket, Jacket Side

2

471768

39

Jacket, Upper Panel, Right

1

471576

40

Jacket, Upper Subplate

2

471767

41

Jacket, Lower Panel, Right

1

471577

42

Base Heat Shield

1

471646

471579

43

Control Box Assy.

1

471994

44

Air Pressure Switch (High)

1

471743

45

Module, Ignition Control

1

471562

46

Temperature Controller

1

471565

47

Right Door Assy.

1

471727

48

Left Door Assy.

1

471659

471726

49

Fan Speed Cross-over Board

1

N/A

471859

50

Air Pressure Switch (Low)

1

N/A

471428

NA

Gas Orifice, 0-2000 Ft (Not Shown)

5 / 8 (250 / 400)

471984

NA

Thermal Cut-off (Not Shown)

1

075173

NA

Transformer, 40 VA (Not Shown)

1

471571

NA

Transformer, .5 KVA, Dual Voltage(Not Shown)

1

471887

Note: Some parts are not listed in above, please contact Customer Service Department for detail

P/N 471593

Rev. C 11-1-01

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Page 33 Page 35
Contents MiniMax NT Low NOx Series For additional free copies of this manual call 800Table of Contents MiniMax NT Low NOx Code RequirementsSafety Rules Warranty InformationOperation For Your Safety Read Before Lighting Operation LightingInstallation Instructions SpecificationsInstallation Electrical ELECTRICAL, ALL HSI UnitsWire Remote TWO-WIRE or THREE-WIRE Remote HOOK-UPInstallation Remotes Three-wire remote Installation Single Voltage WiringInstallation Single VoltageCode or Superceding Local Wiring Codes MiniMax NTLowPlumbing Water ConnectionsPlumbing Connections GAS Connections Installation Indoor Indoor VENTING-General RequirementsSee page 17 for Indoor Vent Adaptors Indoor Vent Adaptors Fits ALL Models Installation IndoorInstallation Outdoor VentilationBasic System Operation General DescriptionBasic Operation Water Pressure Switch Safety ControlsAIR Pressure FAN Switch Typical Water Pressure SwitchOperation of Ignition Module Basic Thermostat Operation Pentair Temperature Controller 7800 LayoutGeneral Normal Operation no RemoteTime Setting To Change the Factory Temperature SettingsTemperature & Time Setting Programming Time SETTING, cont’d Time Setting ProgrammingEnergy Saving Tips Maintenance InstructionsMaintenance Spring and Fall OperationPool and SPA Water Maintenance Water TreatmentChemical Balance If pH becomes too high over alkaline, it has these effectsTroubleshooting-Normal Operation Sequence of Heater Normal Operation SequenceTroubleshooting-Normal Operation of Heater Power Service Current Temp SET TEMP/TIMETroubleshooting & Service Service Checks Service CHECKS-IGNITION Module Flame Sensor Current Check Troubleshooting General Heater Short Cycling Rapid On and Off OperationMinimax NT LOW NOx Heater Single Voltage Description QTY Minimax NT LOW NOx Heater Dual Voltage MiniMax NT Low NOx Dual Voltage Replacement parts Rev. C Rev. C Rev. C MiniMax NT Low NOx Heaters Limited Warranty
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