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A.O. Smith ATX-199 Instruction Manual

Tx-1 series. commercial gas water heater. series 100 & 101
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WARNING: If the information in these
instructions is not followed 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 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.
If you cannot reach your gas supplier,
call the fire department.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
PRINTED 0917
COMMERCIAL GAS WATER HEATER
R
D
R
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
Instruction Manual
MODELS (A/S/M) TX-199
INSTALLATION - OPERATION -
SERVICE - MAINTENANCE
Read and understand this instruction
manual and the safety messages
herein before installing, operating or
servicing this water heater.
Failure to follow these instructions and
safety messages could result in death
or serious injury.
This manual must remain with the
water heater.
• For Your Safety •
AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
100288348 2000546134 (Rev. B)
SERIES 100 & 101

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Summary of Contents for A.O. Smith ATX-199

  • Page 1 Instruction Manual COMMERCIAL GAS WATER HEATER MODELS (A/S/M) TX-199 SERIES 100 & 101 INSTALLATION - OPERATION - SERVICE - MAINTENANCE WARNING: If the information in these instructions is not followed 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 appliance.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS GENERAL SAFETY INFORMATION ..........4 WATER HEATER INSTALLATION .........37 ................4 ......37 ............4 ..........39 .............4 ...........42 ........42 INTRODUCTION ................6 ............43 ..............6 Gas Line Leak Testing ............43 ................6 Purging ................43 ..........6 ............43 FEATURES AND COMPONENTS ..........7 ............44 ..............7 ..........44 INSTALLATION CONSIDERATIONS ........10 TEMPERATURE REGULATION ...........46 ............10 ......46...
  • Page 3 SAFE INSTALLATION, USE, AND SERVICE others. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER indicates an imminently hazardous situation which, if not avoided, DANGER will result in injury or death.

  • Page 4: General Safety Information

    GENERAL SAFETY INFORMATION PRECAUTIONS HYDROGEN GAS FLAMMABLE DO NOT USE THIS WATER HEATER IF ANY PART HAS BEEN EXPOSED TO FLOODING OR WATER DAMAGE. Explosion Hazard Flammable hydrogen gases may be present. Keep all ignition sources away from faucet when turning on hot water.
  • Page 5 Fire or Explosion Hazard Fire Hazard For continued protection against Do not store or use gasoline or other flammable vapors and risk of fire: liquids in the vicinity of this or any other appliance. Do not install water heater on Avoid all ignition sources if you smell gas.

  • Page 6: Introduction

    INTRODUCTION • ABBREVIATIONS USED • Features and Components (page • • • • See Troubleshooting (page 54). By using this Institute • • • • QUALIFICATIONS NOTE: ANSI Z223.1 2015 Sec. 3.3.81: • National Fuel Gas Code ANSI Z223.1/NFPA 54 National Electrical Code NFPA 70 or CAN/CSA-B149.1 the Natural Gas and Propane Installation Code,...

  • Page 7: Features And Components

    Massachusetts 248-CMR 2.00: State Plumbing Code 248-CMR 5. See Installing Carbon Monoxide Detectors (page 32). FEATURES AND COMPONENTS BASIC OPERATION at the top of the tank. point. See Figure 3. Figure 1. TX1 Components Water Heating Unit...
  • Page 8 WATER HEATING UNIT COMPONENTS Figure 3. Water Heating Unit 13. Fan Motor 15. Igniter 18. Exhaust Port Figure 2. Water Heater Function Water Heating Unit...
  • Page 9 MODULATION BURNER ASSEMBLY Figure 4. Igniter Assembly Spark Igniter Flame Sensor...

  • Page 10: Installation Considerations

    INSTALLATION CONSIDERATIONS ROUGH-IN DIMENSIONS Hot Water Outlet Combustion Air Inlet T&P Valve and Exhaust Outlet Supply Gas Connection Cold Water Inlet Drain Valve Figure 5. Rough-in Dimensions Table 1. Dimensions APPROX. SHIP WEIGHT LBS (KG) 72 (183) 58.7 (149) 41 (104) 11.8 (30) 4.3 (11) 61.38...
  • Page 11 LOCATING THE WATER HEATER Fire or Explosion Hazard Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. CAUTION Avoid all ignition sources if you smell gas. Do not expose water heater controls to excessive gas Property Damage Hazard pressure.

  • Page 12: Vent Piping Options

    VENT PIPING OPTIONS 0” Min. EXTENDED VENT LENGTH Table 7 (page 21). 0” Min. 0” Min. 3” Min. OPTIONAL DIRECT VENT TERMINATIONS in a direct vent 4” Min. Concentric Termination Installation Preparation (page 28). Figure 6. Clearances Bottom Front Sides Note: Adequate clearance for servicing HARD WATER should be maintained on all installations.

  • Page 13: Installation Requirements

    INSTALLATION REQUIREMENTS GAS SUPPLY PRESSURE REQUIREMENTS WARNING Breathing, Fire, and sions. Table 4. Gas Pressure Parameters by Gas Type Gas type Inlet Gas Pressure Propane Note: Fuel conversions are not allowed on this product. Table 4 Supply Gas Regulator (page 14). Table 4...
  • Page 14 SUPPLY GAS REGULATOR WARNING Table 4 National Electrical Code ANSI/NFPA 70 in the U.S. CSA C22.1 Canadian Electrical Code Part 1 Table 19 (page 41) Table 20 (page 41). DEDICATED POWER WIRING AND BREAKERS pressure. NOTE: POWER SUPPLY NFPA 70 CSA C22.1 UL 943.
  • Page 15 Water temperature over 125°F (52°C) HOT WATER can cause severe burns instantly OUTLET resulting in severe injury or death. Children, the elderly and the 12” TO 15” (30-38 cm) physically or mentally disabled are at highest risk for scald injury. TEMPERED WATER OUTLET Feel water before bathing or...
  • Page 16 ANSI Z21.22 • CSA 4.4 ASME. See Water Line Connections (page 44) Water Piping Diagrams (page 66). Explosion Hazard SAFETY VALVE REQUIREMENTS Temperature-Pressure Relief Valve must comply with ANSI Z21.22- CSA 4.4 and ASME code. • Properly sized temperature- pressure relief valve must be installed in opening provided.
  • Page 17 NOTE: CAUTION Thermal Expansion Closed Water Systems (page 15). Water Damage Hazard • Temperature-Pressure Relief Valve discharge pipe must terminate at adequate drain. CONDENSATE DRAIN T&P VALVE DISCHARGE PIPE REQUIREMENTS • • • • • CONDENSATE PH LEVEL • NOTE: •...
  • Page 18 Check for Chemicals Fire or Explosion Hazard Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Avoid all ignition sources if you smell gas. Do not expose water heater controls to excessive gas pressure.
  • Page 19 Example: Gas Water Heater 199,000 See Install with Outside Ventilation (page 19). For Furnace 75,000 Dryer 20,000 Install with Outside Ventilation Total 294,000 Worksheet for Your Appliances: Gas Water Heater Table 6. Total Calculate the Air Volume of the Room Determine Type of Ventilation NOTE: Calculate Required Air Volume...
  • Page 20 Table 6. Minimum Free Area by Ventilation Type Opening Source Minimum Free Area 1 in Figure 8 Figure 9.) 1 in (865 Figure 13.) 1 in (100 in Figure 10.) 1 in Figure 11.) • 1 in (See openings Figure 12.) •...
  • Page 21 12” (305 mm) Outlet air to maximum per 4,000 btu/h 1 in Two permanent Space 1,000 btu/h Openings per 4,000 btu/h 12 (305 mm) maximum Figure 10. Vertical Duct Openings Figure 13. Indoor Air Through Two Permanent Openings MAXIMUM EQUIVALENT PIPE LENGTHS AND ELBOWS 1 in (6.5 cm per 2,000 btu/h...
  • Page 22 DIRECT VENT INSTALLATIONS TWO-PIPE, DIRECT-VENT INSTALLATION Upper DIP Switch Bank Lower DIP Switch Bank HOW TO INSTALL A TWO-PIPE, DIRECT-VENT SYSTEM Clearances For Rooftop Terminations (page 36) for the proper Figure 16. Location of DIP Switches Installing a Three-Inch (76 mm) Direct Vent Connection Hanger Wall Hanger...
  • Page 23 Table 9. DIP Switch Settings: Four-Inch Direct Vent Upper DIP 5 to 50 ft Switch 51 to 100 ft (1.5 to 15.2m) (15.3 to 30.5 m) Bank (DEFAULT) ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 Lower DIP Switch Bank Figure 21.
  • Page 24 HOW TO INSTALL A STAINLESS STEEL DIRECT VENT Table 11. DIP Switch Settings: Four-Inch Single-Vent Pipe 5 to 50 ft 51 to 100 ft (1.5 to 15.2m) (15.3 to 30.5 m) (DEFAULT) Installing a Four-Inch Stainless-Steel Direct Vent Connection ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 heater.
  • Page 25 4" (102 mm) elbow Approved Category IV, Single Wall, Venting Suppliers 4” (102 mm) with bird screen stainless steel vent and Part Numbers straight pipe Z-FLEX® Exhaust vent collar (Female) Heater Nova Z-VENT™ Description Vent Kits VENT™ Intake vent collar (Female) 100112407 2NVP4.5 2SVEPWCF0406...
  • Page 26 COMMON DIRECT-VENTING SYSTEM Approved Category IV, Single Wall, Venting Suppliers and Part Numbers Z-FLEX® Heater Nova Z-VENT™ Description Vent Kits VENT™ 100112550 2NVHTC43S 2SVSHTC43S the National Fuel Gas Code ANSI Z223.1/NFPA 54 100112551 2NVHTC43 2SVSHTC43 B149.1 Natural Gas and Propane Installation Code (Current Editions) 100112552 2NVHTC44S 2SVSHTC04S...
  • Page 27 Exhaust Elbow Terminations Condensate Drain Port Intake Non Return Valve Figure 27. Figure 29. Common Vent System Dimensions NOTE: Table 18 Condensate Drain Port Exhaust (page 34). NOTE: Intake WARNING Non Return Valve Figure 28. DETERMINING COMMON VENT SYSTEM DIMENSIONS Table 16 (page 28).
  • Page 28 CONCENTRIC TERMINATION INSTALLATION PREPARATION Table 16. Common-Venting System DIP Switch Settings Max. Max. Vertical and Vent No.of Diameter* DIP Switch Settings Water (Total) Vent Heaters Length** (L) 4 in. NOTE: 5 in. 6 in. Figure 32 (page 29) (Upper bank DIP ON 1 2 3 4 5 6 7 8 Figure 30 (page 28).
  • Page 29 • NOTE: (vent) pipe. Table 7 (page 21). • NOTE: 9. Return to Direct Vent Installations (page 22) to Concentric Termination Installation (page 29). VENT MAINTAIN 12” (30 cm) 18” (45 cm) FOR CANADA CONCENTRIC TERMINATION INSTALLATION MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED COMBUSTION SNOW LEVEL.
  • Page 30 CONTAMINATED AIR Breathing Hazard - Carbon Monoxide Gas Install water heater in accordance with the Instruction Manual and NFPA 54 or CAN/CSA-B149.1. To avoid injury, combustion and ventilation air must be taken from outdoors. Do not place chemical vapor emitting products near water heater.
  • Page 31 VENT APPLIANCES EXHAUST FANS LOUVERS AND GRILLES in the open position. Combustion Air Supply Options (page 20).

  • Page 32: Installation Requirements - Commonwealth Of Massachusetts

    INSTALLATION REQUIREMENTS - COMMONWEALTH OF MASSACHUSETTS 248 CMR 5.08(2)(a) 1 through 4. EXEMPTIONS 248 CMR 5.08(2) (a)1 through 4 of NFPA 54 INSTALLING CARBON MONOXIDE DETECTORS MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED APPROVED CARBON MONOXIDE DETECTORS NFPA 720 be ANSI/UL 2034...

  • Page 33: High-Altitude Installations

    HIGH-ALTITUDE INSTALLATIONS Table 17. Figure 3 (page 8). Fire and Explosion Hazard Under no circumstances should the input exceed the rate shown on the water heater’s rating label. Upper DIP Overfiring could result in fire or Switch explosion. Bank Gas and carbon monoxide detectors are available.
  • Page 34 TERMINATION CLEARANCES FOR SIDEWALL INSTALLATIONS Inside corner = Vent terminal detail = Air supply inlet = Area where the terminal Fixed Operable Fixed closed closed Operable Regulator/Gas meter vent outlet Figure 35. Vent Termination Clearances Table 18. Vent Termination Clearances for Direct Vent and Other Vent Systems Canada Installations US Installations Direct Vent/Other Than...
  • Page 35 WARNING 2 ft (610 mm) min. Exhaust Termination Breathing carbon monoxide can cause brain damage or death. Always read and understand the instruction manual. Figure 36. Clearance From Adjacent Buildings Multiple Sidewall Terminations Case 1: Long Terminations Exhaust Exhaust Exhaust 0.5 ft (159 mm) Intake Intake...
  • Page 36 CLEARANCES FOR ROOFTOP TERMINATIONS WARNING Intake air (305 mm) min. Intake air Follow all local and national codes in (305 mm) min. regards to proper termination clearances. (305 mm) In the absence of such codes, the Exhaust min. clearances below must be met. Local codes supersede these clearances.

  • Page 37: Water Heater Installation

    WATER HEATER INSTALLATION WATER HEATING UNIT CONDENSATE DRAIN • • Figure 43 (page 38). • Figure 43 (page • 38). • CONDENSATE DRAIN INSTALLATION INSTRUCTIONS INSTALLATION NOTES • • TH-NT01). • • • • • • • Figure 41. Water Heating Unit Condensate Drain Port...
  • Page 38 1/2" MPT condensate connection 1/2" MPT condensate connection Condensate drain tube* Condensate drain tube* Overflow bypass* (1/2" Condensate drain tube) 1/2" MPT x 3/8" FPT (Included with Neutralizer accessory) Neutralizer cartridge (Included with Neutralizer accessory) 2” (50 mm) 2” (50 mm) 6"...
  • Page 39 INSTALLATION NOTES REGULATED GAS SUPPLY LINE MAIN GAS SHUTOFF VALVE TEE FITTING SEDIMENT TRAP PIPE CAP Figure 44. Supply Gas Line Installation SUPPLY GAS LINE INSTALLATION Figure 44. GAS LINE SIZING ANSI Z223.1/NFPA 54 in the USA or B149.1 Fire and Explosion Hazard Do not use water heater with any gas other than the gas shown on the rating WARNING...
  • Page 40 CALCULATING GAS LINE SIZE 5' (1.5 m) Length 1-1/4" (32 mm) Pipe size Gas Meter 5' (1.5 m)Length 1-1/4"(32 mm) Pipe size 10' (3 m ) Length Water Heater 1" (25 mm) Pipe size 199,000 BTU/h Furnace 120,000 BTU/h 10' (3 m) Length 3/4”...
  • Page 41 Table 19. Natural Gas Supply Piping Pipe Length 100' 125' 150' Diameter (3 .0 m (6.1 m) (9.1 m) (12.2 m) (15.2 m) (18.3 m) (21.3 m) (24.4 m) (27.4 m) (30.5 m) (38.1 m) (45.7 m) (61.0 m) 1" 2"...
  • Page 42 MEASURING INLET GAS PRESSURE WARNING MIN Button MAX Button • • • Figure 47. Computer Board Table 4 (page 13) . pressure. THIS IS ONLY TO BE DONE BY A LICENSED PROFESSIONAL. B149.1.) Figure 46 SUPPLY GAS PRESSURE ADJUSTMENT Pressure Port Fire and Explosion Hazard Figure 46.

  • Page 43: Gas Line Leak Testing

    Table 2 (page 10) see Figure 44 (page 39) NOTE: this purpose. Power Supply (page 14) Gas Supply Pressure Requirements (page 13) Supply Gas operation. Line Installation (page 39) PURGING GAS LINE CONNECTION NFPA 54 the National Fuel Gas Code or CAN/CSA B149.1 Natural Gas and Propane Installation Code.
  • Page 44 NOTE: THERMOMETERS (NOT SUPPLIED) NFPA 70 CSA C22.1 UL 943. Water Piping Diagrams (page 66). POWER SUPPLY CONNECTIONS Power Supply (page 14) WATER (POTABLE) HEATING AND SPACE HEATING Note: WATER LINE CONNECTIONS Mixing Valves 1. Mixing Valves (page 14). (page 14). 2.
  • Page 45 CAUTION Water Damage Hazard • Temperature-Pressure Relief Valve discharge pipe must terminate at adequate drain. • • • • • • •...

  • Page 46: Temperature Regulation

    TEMPERATURE REGULATION HIGH TEMPERATURE LIMIT CONTROL (ECO) Table 21. Time/Temperature to Burn Time for Permanent Time for 1st Degree Water Temperature Burns Burn °F (°C) 2nd & 3rd Degree (Less Severe Burns) (Most Severe Burns) 110 (43) 116 (47) 116 (47) 122 (50) 131 (55) 140 (60)

  • Page 47: Control System Operation

    CONTROL SYSTEM OPERATION WARNING • • TEMPERATURE REMOTE CONTROLLER • • • MOUNTING AND WIRING THE REMOTE CONTROLLER Remote Temperature Control Qty. 1 Main body Screws Insert a flat head screwdriver in one of the slots at the Qty. 2 bottom of the unit and twist.
  • Page 48 CONNECTING THE REMOTE CONTROLLER TO THE WATER HEATER 1-3/8 Inch (35 mm) Fork Terminals Figure 51.) 1-5/8 Inch (41 mm) Remote controller cable Figure 50. Remote Cable Fork Terminals See Figure 51. 100209924 Connect other end (TM-RE42) to these terminals Cable Access Cut-Out Figure 51.

  • Page 49: Start Up

    START UP PRIOR TO START UP (page 6). INITIAL OPERATION DO NOT USE THIS APPLIANCE IF ANY PART HAS FOR YOUR SAFETY, READ BEFORE OPERATING BEEN EXPOSED TO FLOODING OR WATER DAMAGE. Lighting the Water Heater (page 50). Measuring Inlet Gas Pressure (page 42). Table 4 (page 13).

  • Page 50: Lighting The Water Heater

    LIGHTING THE WATER HEATER FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. WHAT TO DO IF YOU SMELL GAS •...
  • Page 51 DANGER FLAMMABLES Read and follow water heater warnings and instructions. If the owner’s manual is missing, contact the retailer or manufacturer. Vapors: 1. Cannot be seen. 2. Are heavier than air. vapors. DANGER BURN Relief Valve and Automatic Gas Shutoff Devices for Hot Water Supply System, ANSI Z21.22 • CSA 4.4...
  • Page 52 NORMAL OPERATION • Temperature and Flow Display Info button. • Info Button • In-Use Indicator Temperature • Stand By Indicator and Flow Display • Hot and Cold Temperature Control Buttons • On/Off Button SETTING THE OUTLET WATER TEMPERATURE Info Button On/Off Button Figure 53.

  • Page 53: Setting Units Of Measure

    SETTING UNITS OF MEASURE °F 100 105 110 115 120* 125 130 135 140 145 150 155 160 165 175 185 °C 40 43 45 50* 52 55 57 Fahrenheit degrees gallons per minute DEFAULT OUTLET TEMPERATURE Celsius degrees liters per minute Figure 3 (page 8).

  • Page 54: Troubleshooting

    TROUBLESHOOTING INSTALLATION CHECKLIST ELECTRICAL CONNECTIONS Power Supply (page 14) Electrical Connections (page 43). Note: OPERATIONAL PROBLEMS WATER HEATER LOCATION Read and understand this instruction manual and the safety messages herein before installing, operating or See Clearance To Combustible Materials (page 11). servicing this water heater.
  • Page 55 ROUGH STARTING, ROUGH OPERATION • Water Heating Unit Controller Fault and Alert Conditions (page 56). Fire and Explosion Hazard • Do not use water heater with any gas other than the gas shown on the rating • Figure label. 3 (page 8). Excessive gas pressure to gas valve can cause serious injury or death.
  • Page 56 WATER LEAKAGE IS SUSPECTED DIAGNOSTIC CHECKS • • • Electrical Shock Hazard • • Turn off power at the branch circuit breaker serving the water heater • before performing any service. • • Label all wires prior to disconnecting when performing service. Wiring errors NOTE: can cause improper and dangerous operation.
  • Page 57 TROUBLESHOOTING CHART Problem Solutions • • Circulation Pumps (page 12). • enough. • Initial Operation (page 49). • Gas Line Sizing (page 39). • Measuring Inlet Gas Pressure (page 42) Supply Gas Pressure Adjustment (page 42). • Setting the Outlet Water Temperature (page 52) Default Outlet Temperature (page 53).
  • Page 58 Problem Solutions • • Electrical Connections (page 43). Error Codes (page 58). ERROR CODES Error Code LED Screen Green LED Figure 56. Error Codes on On-Board Panel Figure 58. Error Codes on Computer Board Error Codes on Remote Control LED Screen Figure 57.
  • Page 59 WATER HEATING UNIT CONTROLLER FAULT AND ALERT CONDITIONS Table 23. Control Board Green LED Flash Codes Green Malfunction Controller Diagnosis Description • setting Five Warning for the • • • • • Three • • • • • Three • •...
  • Page 60 Table 23. Control Board Green LED Flash Codes Green Malfunction Controller Diagnosis Description Four • • • • tion • • • • • • Five • Five • tion • • • • •...

  • Page 61: Maintenance

    MAINTENANCE GENERAL Table 24. Maintenance Schedule Component Operation Interval Required See Draining the Water Heating Unit. • See Locating the Water Heater (page 11). Burner • Figure 59) Pressure Test Operation Test Initial Operation (page 49) Test Operation Test Table •...
  • Page 62 DRAINING AND FLUSHING THE STORAGE TANK Blue Flame Normal Condition Features and Components (page 7) Flame blowing up Burn hazard. Abnormal Condition (Air Rich) Hot water discharge. Figure 59. Burner Flame Visual Check Keep clear of Temperature- Pressure Relief Valve discharge outlet.
  • Page 63 Filling The Water Heater Storage Tank (page 49). NOTE: DRAIN VALVE Thermal Expansion (page 15) Closed Water Systems (page 15) Features and Components (page RELIEF VALVE TESTS Do not plug the Temperature-Pressure Relief Valve opening. This can cause property damage, serious injury or death.

  • Page 64: Diagrams

    DIAGRAMS WIRING DIAGRAM Input Power Cord Protective Earth Plug Black Neutral Black PUMP Terminal Block PUMP PUMP Green PLUG PLUG White Ground Screw PUMP CONTROL INSTANT Yellow HEATER Green Power Cord Receptacle Plug Black White Green = 18AWG AWM wire 105°C 600V UL 1015 Figure 62.
  • Page 65 CIRCULATION PUMP WIRING DIAGRAMS FIELD SUPPLIED TEMPERATURE CONTROL INSTALLED IN THE STORAGE TANK OR CIRCULATING LOOP RETURN LINE NOTE: USE SEPARATE 120 VAC POWER SUPPLY FOR PUMP CIRCUIT. DO NOT SHARE POWER WITH WATER HEATER AS THIS MAY CAUSE ELECTRICAL LINE NOISE AND LEAD TO ERRATIC CONTROL SYSTEM OPERATION.
  • Page 73 NOTES...
  • Page 74 NOTES...
  • Page 75 NOTES...
  • Page 76 1-800-527-1953...

This manual is also suitable for:

Stx-199Mtx-199

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