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29

Parts Identification

PARTS LIST

Item

Description

Part Number

1

Valve, manual shut off with nipple

03399*

2

Regulator, Propane Gas, Second stage, vent over outlet

06553*

Regulator, Propane Gas, Second stage, vent over side

06665*

Regulator, Natural Gas, Second stage

24414*

3

Hose, 1/2 in. ID x 10 ft. with adapter

20714*

4

Adapter, hose, 1/2 NPT x 1/2 NPS

25873*

5

Kit, sediment trap

00815

6

Base

572690

7

Gas control valve 

Propane Gas

572686

Natural Gas

572879

8

Manifold with orifice

Propane Gas

572688

Natural Gas

572878

9

Orifice, burner  

Propane Gas

570053

Natural Gas

572876

10

Burner

570655

11

Burner mounting hardware

570211

12

Igniter and sensor assembly

22473

13

High limit switch

505566

14

Heat chamber

570200

15

Case assembly with doors and latches

Propane Gas

572684

Natural Gas

572877

16

Latch assembly

20959

17

Wire kit with wire harness

570103

18

Ignition control

24900

19

Transformer, 120/24 v.

509615

20

Cover, control box

22465

21

Window plug with o-ring

570002

22

Power cord, 10 ft.

520133

23

Motor, 1/3 HP, ball bearing

520169

24

Mount, motor

570251

25

Fan wheel

570481

26

Air proving switch 

24157

27

Fan housing, with air proving switch  and motor mount

24167

28

Washer and bolt

25866

29

Plug with rectifier

572774

* Accessory

Содержание GUARDIAN Smart Sense AD250

Страница 1: ...ding Heaters with Smart Sense Automatic Variable Rate Heat For Use with SmartBox Controller ATTENTION ALL USERS This heater has been designed tested and evaluated by L B White Co Inc as a direct gas f...

Страница 2: ...line solvents paint thinner dust particles or unknown chemicals Failure to follow these instructions may result in a fire or explosion Fire or explosions can lead to property damage personal injury or...

Страница 3: ...B White distributor dealer or the L B White Company Contact your local L B White distributor or the L B White Co Inc for assistance or if you have any questions about the use of the equipment or its...

Страница 4: ...ed to Support Combustion CFM Burner Manifold Pressure in W C Net Weight lbs Shipping Weight lbs Electrical Supply Volts Hz Phase Amp Draw Starting Amps Includes Igniter Dimensions Inches L x W x H Min...

Страница 5: ...environment controller is required for further operation See Fig 1 for a typical system diagram Each SmartBox controls two zones of heat two heaters er zone One sensor may be used for each zone of he...

Страница 6: ...ht the appliance for you WARNING Do not use this heater for heating human living quarters Do not use in unventilated areas The flow of combustion and ventilation air must not be obstructed Proper vent...

Страница 7: ...ving switch Never operate this heater with any safety device that has been bypassed Do not operate this heater unless all of these features are fully functioning 6 Do not operate the heater with its d...

Страница 8: ...eep foreign materials from entering the gas valve and protect the safe functioning of that important safety component 10 Any heater connected to a piping system must have an accessible approved manual...

Страница 9: ...fects found in performing any of the service or maintenance procedures must be eliminated and defective parts replaced immediately The heater must be retested by properly qualified service personnel b...

Страница 10: ...TIONS SEDIMENT TRAP ASSEMBLY NIPPLE HOSE ADAPTER TEE NIPPLE CAP TO GAS CONTROL VALVE INLET EYEBOLT NUT FLATWASHER CAGE NUT CHAIN CASETOP NOTE REGULATORS SHOULD ALWAYS BE MOUNTED OUTDOORS IF CIRCUMSTAN...

Страница 11: ...suitable for use with L P gas or natural gas on the threaded connections 2 Assemble the components together according to the figure This view is to show general assembly of the components only The reg...

Страница 12: ...1 and 2 FIG 7 B Wiring from SmartBox to the heater s Smart Sense variable rate gas control valve a Connect Smart Sense gas control valve wiring for Zones 1 and 2 at SmartBox leads as shown in Fig 8 F...

Страница 13: ...onnel shall service or repair the heater 5 On a call for heat the motor will start up and run for five 5 seconds This pre purge is a safety feature and a normal operational characteristic prior to ign...

Страница 14: ...ee of dust c When washing with water observe and obey the Warning within these Cleaning Instructions This same Warning is also supplied on the heater 14 Cleaning Instructions Maintenance Instructions...

Страница 15: ...and must be replaced Do not operate the heater with the switch jumpered Replace the part immediately An alternate method for checking the components is to perform a continuity check 5 Do not jumper t...

Страница 16: ...off briskly rub the sensor rod with emery cloth or steel wool to remove any build up Restart the heater Ensure the igniter gap is 1 8 3 16 in and the igniter tip is positioned over the burner port ac...

Страница 17: ...bout a minute before firmly pressing the reset button on the switch 6 Check for electrical continuity across the switch terminals to make sure the contacts have closed 7 Reinstall the switch back into...

Страница 18: ...2 Do the readings at the inlet and outlet pressure gauges agree with that specified on the dataplate If so then no further checking or adjustment is required Proceed to section D 3 If the inlet press...

Страница 19: ...s is essential as it will relate directly to problem solving provided by the flow charts The ignition control module is self diagnostic The red light on the module will flash a specific pattern depend...

Страница 20: ...control terminal PS2 Ignition control powers the igniter and igniter sparks Ignition control sends 24 volts from terminal MV to gas control through high limit switch Ignition occurs Igniter continues...

Страница 21: ...ive Replace ignition module Is proper voltage supplied to transformer Check electrical connections and power supply to transformer Repair as necessary No Yes 21 Heater does not cycle above minimum hea...

Страница 22: ...seconds off repetitively for 15 minutes Heater has attempted three ignition trials Heater is in a 15 minute wait period before attempting three more trials for ignition If ignition is not achieved aft...

Страница 23: ...efective motor or capacitor Replace motor Yes Remove obstruction Clean as necessary No Is fan wheel plugged with dirt No Is there an obstruction in blower outlet preventing air proving switch closure...

Страница 24: ...o heater and check with a gauge No Remove orifice and burner casting Blow out with compressed air or clean with a soft brush No No No No No Is flame sensor insulator cracked No Is flame sensor properl...

Страница 25: ...blems in three time flash pattern 1 The ignition control sends and receives voltages throughout the entire operation sequence The ignition control s terminals should also be checked for delivering pro...

Страница 26: ...ROUND POWER CORD WHITE FAN MOTOR GAS CONTROLVALVE L1 IND L E D MV PS2 PS1 W FS R X C COM GREEN YELLOW BLACK DSI CONTROL TRANSFORMER IGNITER FLAME SENSOR HIGH LIMIT SWITCH AIR PROVING SWITCH BLACK BLAC...

Страница 27: ...ical circuit to the gas control valve in event of overheat situation Ignition Control Module Controls the ignition sequence and operation of the heater as well as monitoring the safety sevices A major...

Страница 28: ...28 Parts Identification PARTS SCHEMATIC 29 27 14 15 16 17 19 18 20 21 22 23 24 25 26 13 12 11 10 9 8 28 7 6 5 4 3 2 1...

Страница 29: ...Orifice burner Propane Gas 570053 Natural Gas 572876 10 Burner 570655 11 Burner mounting hardware 570211 12 Igniter and sensor assembly 22473 13 High limit switch 505566 14 Heat chamber 570200 15 Case...

Страница 30: ...urchase by the end user Warranty is automatic if a component is found defective within 12 months of the date code marked on the part If the defect occurs more than 12 months later than the date code b...

Страница 31: ......

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