Toyotomi Oil Miser OM-148 (Type D) Operation And Maintenance Instructions
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Toyotomi Oil Miser OM-148 (Type D) Operation And Maintenance Instructions

Instantaneous oil-fired water heater
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Instantaneous Oil-Fired Water Heater

Operation and Maintenance Instructions

IMPORTANT
READ AND UNDERSTAND INSTRUCTIONS BEFORE INSTALLING OR USING THIS WATER HEATER.
RETAIN INSTRUCTIONS FOR FUTURE REFERENCE. CHECK LOCAL CODES AND ORDINANCES FOR
PERMITTED USE.
CAUTION
THIS WATER HEATER SHALL NOT BE USED FOR COMMERCIAL USE OR FOR ANY PURPOSES OTHER
THAN HOT WATER SUPPLY USES. OTHER USAGE MAY CAUSE A MALFUNCTION OR SHORTEN ITS
SERVICE LIFE. DO NOT REMOVE THE RATING PLATE AND LABELS FROM THE WATER HEATER UNIT.
Safety Tips ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 1
Safety Features ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 3
Specifications⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4
Dimensional Outline⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 5
Control Panel ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 6
Construction ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 6
Fuel Guide ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 7
Fueling ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 8
OM-148
MODEL
(Type D)
CONTENTS
Inspection Before Operation ⋯⋯⋯⋯⋯⋯⋯⋯ 8
Operation ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 9
Adjusting Water Temperature ⋯⋯⋯⋯⋯⋯⋯ 9
Turning Unit Off ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 10
Preventing Freeze Up ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 10
Long Term Inactivity ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 11
Inspection and Maintenance ⋯⋯⋯⋯⋯⋯⋯ 12
Troubleshooting ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 13

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Summary of Contents for Toyotomi Oil Miser OM-148 (Type D)

  • Page 1: Table Of Contents

    Instantaneous Oil-Fired Water Heater Operation and Maintenance Instructions OM-148 MODEL (Type D) IMPORTANT READ AND UNDERSTAND INSTRUCTIONS BEFORE INSTALLING OR USING THIS WATER HEATER. RETAIN INSTRUCTIONS FOR FUTURE REFERENCE. CHECK LOCAL CODES AND ORDINANCES FOR PERMITTED USE. CAUTION THIS WATER HEATER SHALL NOT BE USED FOR COMMERCIAL USE OR FOR ANY PURPOSES OTHER THAN HOT WATER SUPPLY USES.

  • Page 2: Section A

    SECTION A: SAFETY TIPS BE SURE TO FOLLOW THE FOLLOWING INSTRUCTIONS. The instructions which are contained in this manual are classified into the following two types, which are "WARNING" and "CAUTION". These instructions are intended to provide important information for safe operation.
  • Page 3 OTHER PRECAUTIONS This unit is only for indoor use. Avoid its exposure to rain or moisture. Do not use for drinking or cooking until the water supply has been approved by local authorities. Hot water (or cold water) left in heat exchanger or piping must not used for cooking or drinking. When using a large amount of hot water the temperature may change, even though the temperature setting has not been changed.

  • Page 4: Safety Features

    SAFETY FEATURES Ignition Safety Device (Flame Sensor) The unit will automatically stop all operations if ignition fails or if the flame fails during combustion. ''WARNING'' lamp will light. Over Heat Protector In order to prevent burns, the over heat protector automatically stops all operations if the water in the heat exchanger reaches abnormally high temperatures due to temperature controller malfunction.

  • Page 5: Section B

    SECTION B: SPECIFICATIONS SPECIFICATIONS Model: OM-148 (Type D) Type: Combustion Type Pressure Vapor Flue Pipe Forced Flue Heating Supply System Instantaneous Source of Water Direct Connection to Main Supply Ignition: High Voltage Discharge Spark Fuel: ASTM D3699 1-K Kerosene, ASTM D396 Low Sulfur No.1 Fuel Oil, or ASTM D975 Ultra Low Sulfur Diesel (ULSD) Efficiency: Hot Water Input:...

  • Page 6: Dimensional Outline

    DIMENSIONAL OUTLINE Hot water Supply 5-1/8" 5-1/8" Outlet (130mm) (130mm) (NPT 3/4) Male Water Supply Inlet (NPT 3/4) Male 3/16" (5mm) Air Intake Inlet Exhaust Outlet ø2-3/4"(ø70mm) ø2-3/4"(ø70mm) 12-5/8"(320mm) Access Cover Temperature and Pressure Relief Valve Installation Opening (NPT 3/4) Female Front Panel Junction Box Drain Outlet...

  • Page 7: Control Panel

    CONTROL PANEL Temp Selector Knob Power Switch Operation Lamp Burner Lamp Warning Lamp 130° F CAUTION POWER OPERATION BURNER WARNING HOTTER WATER INCREASES THE RISK OF SCALD INJURY. BEFORE CHANGING TEMPERATURE VERY HOT SETTING SEE INSTRUCTION MANUAL. COLD ON/OFF THERMOSTAT CONSTRUCTION Heat Exchanger Bi-Metal Switch Thermistor...

  • Page 8: Section C

    SECTION C: FUEL GUIDE The OM-148 is designed for use with ASTM D3699 1-K Kerosene, ASTM D396 Low Sulfur No.1 Fuel Oil, or ASTM D975 Ultra Low Sulfur Diesel (ULSD) only. Use of low-quality oil will cause burner performance to drop, leading to abnormal combustion and reduced the unit life.

  • Page 9: Section D

    SECTION D: OPERATION FUELING WARNING: Use ASTM D3699 1-K Kerosene, ASTM D396 Low Sulfur No.1 Fuel Oil, or ASTM D975 Ultra Low Sulfur Diesel (ULSD) only. Never use gasoline, thinner, benzene, light oil or waste oil, or any other high volatile liquids. CAUTION: Make sure that the fuel is clean and free from dirt and water.

  • Page 10: Operation

    OPERATION ¡ Hotter water or high temperature setting increases the risk of scald injury. CAUTION: ¡ Thermostat has been set at factory to about 130°F. ¡ Risk of scald injury. When using a shower, feel the temperature of the water with your hand before getting under the water.

  • Page 11: Flow Rate And Water Temperature

    OPERATING AT HIGH TEMPERATURE CAUTION: Risk of scald injury. Before changing temperature setting make sure that the water heater is not being used by any of your family at any place in the house. ¡Seasonal change of water temperature from the main water source results in different hot NOTE: water temperature supplied.

  • Page 12: Long Term Inactivity

    LONG TERM INACTIVITY When you do not plan to use the unit for an extended period, the following procedures are recommend- 1. Turn the unit off. 2. Disconnect the power supply cord. 3. Close the fuel tank valve securely. 4. After closing the main water supply valve, open up all the faucets. 5.

  • Page 13: Section E

    SECTION E: ROUTINE MAINTENANCE INSPECTION AND MAINTENANCE WARNING: RISK OF INJURY FROM MOVING PARTS AND ELECTRICAL SHOCK. Disconnect the power sup ply cord before inspecting and servicing unit.All repairs should be left to professionals. RISK OF BACKFIRE AND INDOOR POLLUTION. Before operation make sure the flue pipe is free of snow, icing, leaves, bird's nest or strong drafts.

  • Page 14: Section F

    10. TEMPERATURE AND PRESSURE RELIEF VALVE (ONCE A MONTH) The temperature and pressure relief valve may become immovable at times due to corrosion of pipes or mineral deposits In the pipes. Pull up the lever of the temperature and pressure relief valve every month and make sure the valve is movable.
  • Page 15 PROBLEM CAUSE SOLUTION POWER LAMP FAILS Disconnected power supply cord Connect power supply cord. TO TURN ON ALARM LAMP Thermistor malfunction Consult your dealer. LIGHTS AFTER Out of water in heat exchanger Supply water. TURNING ON. Flame sensor malfunction Consult your dealer. Light is received on the receiving Consult your dealer.
  • Page 16 WHO IS COVERED: The original purchaser at retail. WHAT WE WILL DO: TOYOTOMI will either repair or replace, at its option, all defective parts free of charge that are covered by this limited warranty through the nearest authorized dealer or distributor of TOYOTOMI.

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