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A.O. Smith fps50 manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    ~ ~ -- ~- I';:::;:: t;;.i( - --- -- ~ ' , ~ K -r~~ : --' :::=::;- ~ ( ;,,' tF ~~~. ~ 0-'1 ~ n ; q F' ~;;;;~~, n II : ~ r =~~~ ~~~ Models FPS 40 and 50 Series 226-227 FPSE 40 and 50 Series 226E FPD 40 and 50 Series 226-227 ruc Wc ~~D~w Prepared by the Technical Information Dept. Irving, Texas F PS 75 Series 230-233 WAT[...]

  • Page 2

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK WORKBOOK INTRODUCTION Technical Information Irvino. Texas 1 @1995 A.D. Smith Water Products Co.[...]

  • Page 3

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK TABLE OF CONTENTS SUBJECT PAGE PAGE SUBJECT Service and Operation Choosing the Best Water Heater 3 FPS 40 & 50 Introduction 21 When to choose the FPS 3 Sequence of Operation 4 Wiring Diagram 22 When to choose the FPSE When to choose the FPD 5 Troubleshooting Index 23 Parts List 40 Venting Ins[...]

  • Page 4

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK CHOOSING THE BEST WATER HEATER Technical Information Irving, Texas 3 @1995 A.D. Smith Water Products Co.[...]

  • Page 5

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK CHOOSING THE BEST WATER HEATER cant.[...]

  • Page 6

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK CHOOSING THE BEST WATER HEATER cant.[...]

  • Page 7

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTALLATION[...]

  • Page 8

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTALLATION cant. Exterior installation clearance requirements are crucial and must be met to ensure compliance with all safety and code requirements. If all clearances cannot be met, do not unpack the heater. Exterior Clearances: FPS FPSE All exterior clearance requirements for the FPS [...]

  • Page 9

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTALLATION cant. Exterior installation clearance requirements are crucial and must be met to ensure compliance with all safety and code requirements. If all clearances cannot be met, do not unpack the heater. Exterior Clearances: FPD All exterior clearance requirements for the FPO are m[...]

  • Page 10

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTAllATION cant.[...]

  • Page 11

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTAllATION cant.[...]

  • Page 12

    VENTING INSTAllATION cant.[...]

  • Page 13

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTAllATION cant.[...]

  • Page 14

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTAllATION cant.[...]

  • Page 15

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTALLATION cant.[...]

  • Page 16

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK VENTING INSTAllATION cant[...]

  • Page 17

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK AIR FOR COMBUSTION Checking for Draft On initial start up, check for the correct draft on the Power Shot. To check the draft, place a smoke stick directly in front of the inlet air damper while the heater is firing. A properly operating system will draw the smoke into the inlet air damper as show[...]

  • Page 18

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK AIR FOR COMBUSTION cant. SOLUTION CONDITION CAUSE Seal vent joints Burnt gas odor when heater is operatinq Leaking vent joints Blocked vent Clear vent blockaQe The majority of the complaints associated with the operation of the will likely be a direct result of improper venting. If the customer c[...]

  • Page 19

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK AIR FOR COMBUSTION cont. CONDITION CAUSE SOLUTION Free air damper Excessive heat build-up in PVC venting Inlet air damper not opening completely Blower does not run when main burner fires Replace entire blower assembly Wrong main burner orifice size Install correct orifice Intermittent fan cyclin[...]

  • Page 20

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK AIR FOR COMBUSTION cont. Negative Pressure Diagnosing pilot outage complaints requires an examination of the environment in which the heater is installed. Mechanical vent fans are the chief cause of negative pressure. If the house is too tight, more air will be exhausted from the structure than i[...]

  • Page 21

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK AIR FOR COMBUSTION cont. A.D. Smith Water Products Co Technical Information Irving, Texas 20[...]

  • Page 22

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION[...]

  • Page 23

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. -A~I DISCONNECT FROM ELECTHICAL SUPPLY BEFORE SERVICING UNIT. REPLACE ALL DOORS AND PANELS BEFORE OPERATING HEATER. ~ "" 115~LT POWER SOURCE CONNECTOR, Gim "" w ~ ~ I O/Y.. G/Y I w , SWITCH W AIR PRESSURE ~, ON OFF ~~:=: ~~~-~ ~.WlAECA[...]

  • Page 24

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. Technical Information Irving, Texas 23 @1995 A.D. Smith Water Products Co.[...]

  • Page 25

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant Trouble- shooting cont PRELIMINARY CHECKS 1. Gas valve knob is in ON position 2. Pilot is burning 3. 120 VAG is supplied to heater. (See page 25) 4. Thermostat is calling for heat 5. Blower ON/OFF switch is in the ON position 6. Connection between blower m[...]

  • Page 26

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. Trouble- shooting cont.[...]

  • Page 27

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. @1995 A.D. Smith Water Products Co. Technical Information Irving, Texas 26[...]

  • Page 28

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont. BLOWER DOES NOT RUN cant. Trouble- shooting cont. RESULTS If: then: the fan does not run, replace the fan assembly. the fan does run, go to Step 2. @1995 A.D. Smith Water Products Co. Technical Information Irving, Texas 27[...]

  • Page 29

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. BLOWER DOES NOT RUN cont. Trouble- shooting cont. RESULTS If: then' replace the cable the fan does not run, go to Step 3. the fan does run[...]

  • Page 30

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. BLOWER DOES NOT RUN cant. Trouble- shooting cont RESULTS If: then replace the harness the fan does not run, the fan does run, replace the gas pressure switch[...]

  • Page 31

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont. Technical Information IrvinQ, Texas 30 @1995 A.D. Smith Water Products Co[...]

  • Page 32

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant BLOWER RUNS CONSTANTLY (No call for heat) cont Trouble- shooting cont RESULTS If: then replace the fan assembly the fan continues to run, go to Step 2 the fan stops, @1995 A.D. Smith Water Products Co. Technical Information Irving, Texas 31[...]

  • Page 33

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CaNST ANTL Y (No call for heat) cant. Trouble- shooting cont. RESULTS If: then: replace the cable. the fan continues to run, go to Step 3. the fan stops,[...]

  • Page 34

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (No call for heat) cant. Trouble- shooting cont. RESULTS If: then: the fan continues to run, replace the harness the fan stops, replace the gas pressure switch.[...]

  • Page 35

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant @1995 A.D. Smith Water Products Co. Technical Information Irving, Texas 34[...]

  • Page 36

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant BLOWER RUNS CONSTANTLY (No main burner) cont. Trouble- shooting cont. RESULTS If: then the meter does not read 120 VAG, replace the air switch the meter does read 120 VAG, go to Step 2 Technical Information Irving, Texas 35 @1995 A.D. Smith Water Products [...]

  • Page 37

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant BLOWER RUNS CONSTANTLY (No main burner) cant. Trouble- shooting cont. RESULTS If: then the meter does not read 120 VAG, replace the cable the meter does read 120 VAG, go to Step 3 Technical Information Irving, Texas 36 @1995 A.D. Smith Water Products Co.[...]

  • Page 38

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (No main burner) cont. Trouble- shooting cont. RESULTS If: then: the meter does not read 120 V AC replace the harness the meter does read 120 V AC, replace the solenoid.[...]

  • Page 39

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont PILOT PROBLEMS Trouble- shooting cont. The following are possible causes of pilot problems: 1. Incorrect pilot position; the pilot should engulf the tip of the thermocouple 38" to 12", 2. Incorrect thermocouple output; it should generate 7 or m[...]

  • Page 40

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cant. MAIN BURNER PROBLEMS Trouble- shooting cont. The following are possible causes of main burner problems: 1. Unlevel burner will cause yellow flames 2. Burning and the orifice indicates main gas valve may not be fully closing. 3. Incorrect manifold gas pres[...]

  • Page 41

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 PARTS LIST PSD-1-263/b RESIDENTIAL WATER HEATER PARTS LIST MODELS FPS-40 AND 50 SERIES 226/227 L;'~ @).,~ ffi]'G;J WATER PRODUCTS COMPANY 5621 W. 115TH STR~~T, ALSIP, ILLINOl5 60462/1-600-433-2545 April 1994 Technical Information Irving, Texas 40 @1995 A.D. Smith Water Pro[...]

  • Page 42

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK S,~i,s22§!:2~Z ~Ef§.;?Q 43fl17-;oS 4.38' 7-Je 181382 181382 161360 16'360 161920 16'920 161936 18'9362: 181g36-1 IB1936-3 IBI806 181806 !!!!!! 1 2 3 4 5 D~~ ftpl!Of1 6 7 181805..3 18~8053 161805-2 1B1805-2 161804-2 16'804-2 23330 23330 16'825 18'825 18~89(J 18[...]

  • Page 43

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION FPD 40 and 50 SERVICE AND OPERATION Technical Information Irving, Texas 42 @1995 A.D. Smith W~t~r Products Co[...]

  • Page 44

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK Technical Information Irving, Texas 43 @1995 A.D. Smith Water Products Co.[...]

  • Page 45

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont FPD 40 and 50 SERVICE AND OPERATION cont. Page I Subject I Preliminary Checks Page 45 Page 46 I Blower does not run I Blower runs constantly (No call for heat) iPage51 Blower runs constantly (Calling for heat, no pilot) I Page 54 Blower runs constantly (C[...]

  • Page 46

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont. FPD 40 and 50 SERVICE AND OPERATION cont. @1995 A.D. Smith Water Products Co. Technical Information Irving, Texas 45[...]

  • Page 47

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont. FPD 40 and 50 SERVICE AND OPERATION cont.[...]

  • Page 48

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER DOES NOT RUN cont. Trouble- shooting cont. RESULTS If: then the meter does not read 120 VAG, replace the blower assembly. the meter does read 120 V AC, go to Step 2. Technical Information Irving, Texas 47 [...]

  • Page 49

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER DOES NOT RUN cant. Trouble- shooting cont RESULTS If: then: the meter does not read 120 VAG, replace the cable. the meter does read 120 VAG, go to step 3. Technical Information Irvina. Texas 48 @1995 A.D. [...]

  • Page 50

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont. FPD 40 and 50 SERVICE AND OPERATION cont. BLOWER DOES NOT RUN cont. Trouble- shooting cont. RESULTS If: then the meter does not read 120 V AC replace high limit. the meter does read 120 VAG, go to Step 4.[...]

  • Page 51

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER DOES NOT RUN cant. Trouble- shooting cont. Technical Information Irving, Texas 50 @1995 A.D. Smith Water Products Co.[...]

  • Page 52

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION FPD 40 and 50 SERVICE AND OPERATION cont. @1995 A.D. Smith Water Products Co. Technical Information Irving, Texas 51[...]

  • Page 53

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (No call for heat) cont. Trouble- shooting cont. RESULTS If: then the blower continues to run, replace the blower. the blower stops, go to Step 2[...]

  • Page 54

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (No call for heat) cant. Trouble- shooting cont Rt.~}'-~ If: then replace the cable , the blower continues to run I see preliminary checks I the blower stops[...]

  • Page 55

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont. FPD 40 and 50 SERVICE AND OPERATION cont. Trouble- shooting cont. BLOWER RUNS CONSTANTLY (CAlliNG FOR HEAT, NO PilOT) First make the Preliminary Checks (see page 45), then perform each of the following tests until cause of the failure is determined: 1. A[...]

  • Page 56

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant. Trouble- shooting cont. RESULTS If: then: the meter does not read 24 V AC replace the pressure switch. the meter does read 24 V AC, go to Step 2[...]

  • Page 57

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant. Trouble- shooting cont. RESULTS If: then the meter does not read 24 VAG, replace the cable. the meter does read 24 VAG, go to Step 3[...]

  • Page 58

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. Trouble- shooting cont[...]

  • Page 59

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont. FPD 40 and 50 SERVICE AND OPERATION cont. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant Trouble- shooting cont RESULTS If: then" D the meter does not read 24 V AC, replace the the meter does read 24 VAG, go to Step 5 Technical Information[...]

  • Page 60

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant Trouble- shooting cont. Technical Information Irving, Texas 59 @1995 A.D. Smith Water Products Co[...]

  • Page 61

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont. FPD 40 and 50 SERVICE AND OPERATION cont. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant. Trouble- shooting cont. RESULTS If: then: the meter does not read continuity, replace pilot valve. the meter does read continuity, check gas supply.[...]

  • Page 62

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont. FPD 40 and 50 SERVICE AND OPERATION cont.[...]

  • Page 63

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, pilot is lit, no main burner) cant. Trouble- shooting cont. RESULTS If: then: the meter does not read 24 VAG, replace the 1.1.0 the meter does read 24 VAG, go to Step 2. [...]

  • Page 64

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, pilot is lit, no main burner) cont. Trouble- shooting cont. RESULTS If: then the meter does not read continuity, replace main valve. the meter does read continuity, check[...]

  • Page 65

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cant. FPD 40 and 50 SERVICE AND OPERATION cant. PILOT PROBLEMS Trouble- shooting cont. The following are possible causes of pilot problems: 1. An open E.C.O. (high limit) will not allow the heater to relight. (See page 49) 2. Incorrect pilot gas pressure: it s[...]

  • Page 66

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 SERVICE AND OPERATION cont. FPD 40 and 50 SERVICE AND OPERATION cont. MAIN BURNER PROBLEMS Trouble- shooting cont. The following are possible causes of main burner problems: 1. Unlevel burner will cause yellow flames. 2. Burning and the orifice indicates main gas valve may not be f[...]

  • Page 67

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPSE 40 and 50 PARTS LIST FPD 40 and 50 PARTS LIST ill.. @J.. ~~ WATER PROOUCTS COMPANY 582' w. , '5TH 8TR~~T. ~l81". IllINOIS 8O.'2rl-800-433-25.5 JUly 1995 P,,'NTED'" V.5.". Technical Information Irving, Texas 66 @1995 A.D. Smith Water Products Co.[...]

  • Page 68

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK ~n" 222,'223 ~~~~ ~~~? FPSE.40 ~PSE.50 ,~ De~t,pll()tI ~ ~ ~~.Q ~~ A"!J'B Doot L&" . . . . . . 181450 181450 J A.-ode ,.. 43816.38 4J8'6.3a 43817.29 43817.35 .J BaH'e ..al'g.f . . '81300 181.160 181:)60 181360 4 ~IO_f Assembly '81616 1816&apos[...]

  • Page 69

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION @1995 A.D. Smith Water Products Co. Technical Information Irving, Texas 68[...]

  • Page 70

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. @1995 A.D. Smith Water Products Co Technical Information Irving, Texas 69[...]

  • Page 71

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cont. Page Subject Preliminary Checks Page 71 Page 72 Blower does not run Blower runs constantly (No call for heat) Page 76 Blower runs constantly (Calling for heat, no pilot) .:>age 79 Blower runs constantly (Calling for heat, pilot is lit, main burner) Page 89 Pi[...]

  • Page 72

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. Trouble- PRELIMINARY CHECKS shooting cont. Technical Information Irving, Texas 71 A.D. Smith Water Products Co.[...]

  • Page 73

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant,[...]

  • Page 74

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER DOES NOT RUN cont. Trouble- shooting cont RESULTS If: then: the meter does not read 120 VAG, replace the blower assembly. the meter does read 120 VAG, go to Step 2[...]

  • Page 75

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER DOES NOT RUN cant. Trouble- shooting cont. j @1995 A.D. Smith Water Products Co. Technical Information Irvina. Texas 74[...]

  • Page 76

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER DOES NOT RUN cant. Trouble- shooting cont. RESULTS If: then: the meter does not read 120 VAG, replace the thermostat. the meter does read 120 VAG, go to preliminary checks. Technical Information Irving, Texas 75 @1995 A.D. Smith Water Products Co.[...]

  • Page 77

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cont. PRELIMINARY CHECKS EXCEPTIONS 4. Heater should be calling for heat. @1995 A.D. Smith Water Products Co. Technical Information Irving, Texas 76[...]

  • Page 78

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (No call for heat) cont Trouble- shooting cont. RESULTS If: then the blower continues to run replace the blower go to Step 2. the blower stops,[...]

  • Page 79

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (No call for heat) cant. Trouble- shooting cont. RESULTS If: then" the blower continues to run, replace the cable the blower stops, see preliminary checks.[...]

  • Page 80

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. Trouble- shooting cont. BLOWER RUNS CONSTANTLY (CAlliNG FOR HEAT, NO PilOT) First make the Preliminary Checks (see page 71) then perform each of the following tests until cause of the failure is determined: 1. Air Pressure Switch Test 2. Vent High Limit Test 3. [...]

  • Page 81

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cont. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant. Trouble- shooting cont. RESULTS If: then: replace the air pressure switch the meter does not read 24 VAG the meter does read 24 VAG, go to Step 2. Line=24 V AC supply Load=Wire carrying current onto high [...]

  • Page 82

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cont Trouble- shooting cont. RESULTS If: then: the meter does not read 24 VAG, replace the vent high limit. the meter does read 24 VAG, go to Step 3. Line=24 VAG supply Load=Wire carrying current onto connector[...]

  • Page 83

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cont. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cont. Trouble- shooting cont. RESULTS If: then: the meter does not read 24 V AC, replace the blower. the meter does read 24 VAG, go to Step 4. @1995 A.D. Smith Water Products Co. Technical Information Irving,[...]

  • Page 84

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant. Trouble- shooting cont. ~ RESULTS If: then: the meter does not read 24 VAG replace the cable. the meter does read 24 VAG, go to Step 5. @1995 A.D. Smith Water Products Co Technical Information Irving, Tex[...]

  • Page 85

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cont. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cont. Trouble- shooting cont. RESULTS If: then: the meter does not read 24 VAG, replace high limit the meter does read 24 VAG, go to Step 6. Technical Information Irving, Texas A.D. Smith Water Products Co. 84[...]

  • Page 86

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTL Y'(Calling for heat, no pilot) cant. Trouble- shooting cont. RESULTS If: then: the meter does not read 120 VAG, replace wire. the meter does read 120 VAG, go to Step 7[...]

  • Page 87

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant. Trouble- shooting cont. RESULTS If: then: the meter does not read 24 V AC, replace the 1.1.0. the meter does read 24 VAG, go to Step 8. @1995 A.D. Smith Water Products Co. Technical Information Irving, Tex[...]

  • Page 88

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cont. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant. T rouble- shooting cont.[...]

  • Page 89

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, no pilot) cant. Trouble- shooting cont.[...]

  • Page 90

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. Technical Information Irving, Texas 89 @1995 A.D. Smith Water Products Co.[...]

  • Page 91

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, pilot is lit, no main burner) cant. Trouble- shooting cont. RESULTS If: then: the meter does not read 24 VAG, replace the I.I.D. the meter does read 24 VAG, go to Step 2.[...]

  • Page 92

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. BLOWER RUNS CONSTANTLY (Calling for heat, pilot is lit, no main burner) cont. Trouble- shooting cont RESULTS If: then: replace the main valve. the meter does not read continuity, the meter does read continuity, check gas supply.[...]

  • Page 93

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. PilOT PROBLEMS Trouble- shooting cont. The following are possible causes of pilot problems: 1. An open E.C.O. (high limit) will not allow the heater to relight. (See page 84). 2. Incorrect pilot gas pressure: it should be 3.5" for natural gas and 10" f[...]

  • Page 94

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cant. MAIN BURNER PROBLEMS Trouble- shooting cont. The following are possible causes of main burner problems: 1. Unlevel burner will cause yellow flames. 2. Burning at the orifice indicates main gas valve may not be fully closing. 3. Incorrect gas pressure; it should [...]

  • Page 95

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 PARTS LIST - 33 R 4 2 ~ 3 AEUEF VALVE ~ 1 .~~ -- - Q - 3511 21 I ~ r~ I~~ 22 ~..; ~ I 24 g! A_rccaas CLO- TYPO ~ -'TYPO - j;k T-.;- ~. -no-- j ~;-' ::; =o:Z--" ..,..,--- 5 , .,-.- '-.- 5 ~ '-i . ~~ 25 17 ~9 ~ 7 ~ 32 18 -(-! 1 I"i::"'- I 20 "&apo[...]

  • Page 96

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS-75 SERIES 230/231 THRU 232/233 Description Part Number Item 1 Anode , 180618-42 Baffle 2 Baffle, Flue ...,..",.",.,."."."... 182193 3 Flue Restrictor '.."'..."'.."'.'.'. 35405 Blower 4 Blower Assembly 182225 5 Blower Wiring[...]

  • Page 97

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK PART INFORMATION CONTROL MODELS SPECIFICATION Fan Draws.75 amp, Turns at 3325 RPM Draws.75 amp, Turns at 3325 RPM Draws 1.8 amp, Turns at 3000 RPM FPS40-50 FPSE & FPD40 - 50 FPS75 Air Pressure Switch FPS40-50 FPSE & FPD40 - 50 FPS75 Closes at .3 PSI Closes at .3 PSI Unavailable at this ti[...]

  • Page 98

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK SERVICE CHECKLIST VI PROPER SEQUENCE OF OPERATION yes yes yes yes yes yes yes yes no no no no no no no no A. FPS40 - 50 During standby is blower off? On a call for heat does gas valve open? Does gas pressure switch close? Does the blower come on? If so, does the air pressure make? Does the soleno[...]

  • Page 99

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK i SERVICE CHECKLIST cant. VII. SAFETY A. Gas yes yes yes yes yes no no no no no Does pilot flame prove before main burner ignites? Does damper blade fully open before ignition sequence occurs? Is burner cover plate in place? Is burner floor shield in place? Does liD lockout occur after 30 sec. tr[...]

  • Page 100

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK QUESTIONS AND ANSWERS FPS MODELS What is the CFM of the blower? Q Maximum of 60 CFM A. Will the blower move more air through the unit than conventional venting and thereby cause less heat to be transferred into the water? Q No. The unit has been tested to the DOE test methods for recovery efficie[...]

  • Page 101

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK QUESTIONS AND ANSWERS cant. Q Is there a maximum distance that the vent cap can terminate from the exterior wall? A. No, as long as the overall equivalent length is not exceeded. We would advise that the exterior piping have a slight negative slope and be properly supported and insulated (The col[...]

  • Page 102

    FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK ADDITIONAL INFORMATION If the inlet air damper does not open to provide dilution air, the PVC vent will sag due to excessive temperature. Propane units do not have a bypass in the gas solenoid valve. This may result in occasional cycling stand by between calls for heat. If you experience more tha[...]

  • Page 103

    &c @)c 0[fiJDcu:'~ A DIVISION OF A.O. SMITH CORPORATION 00 FOR ADDITIONAL INFORMATION CONTACT A.O. SMITH TECHNICAL INFORMATION DEPARTMENT AT 1-800-527 -1953[...]