Toyotomi Oil Miser OM-180 Installation Manual
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Toyotomi Oil Miser OM-180 Installation Manual

Instantaneous oil-fired water heater
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Instantaneous Oil-Fired Water Heater
IMPORTANT
THIS APPLIANCE SHOULD BE INSTALLED BY A LICENSED, AUTHORIZED PERSON(S) DUE TO THE
NECESSITY OF MAKING ELECTRICAL, WATER AND FUEL CONNECTIONS. RETAIN THIS MANUAL 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.
Temperature and Pressure Relief

Installation Manual

OM-180
MODEL
CONTENTS
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Summary of Contents for Toyotomi Oil Miser OM-180

  • Page 1: Table Of Contents

    SECTION C: Installation Selecting a Location Tools Needed for Installation Fuel Tank Installation Removing Air Trap Temperature and Pressure Relief Installation Manual OM-180 MODEL CONTENTS Plumbing Permanent Wiring Installation Differential Switch and Dip Switch Wiring for Circulation Pump Wiring for Timer...

  • Page 2: Section A

    SECTION A: SAFETY TIPS FOR INSTALLATION 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: Section B

    SECTION B: UNPACKING Unpack the unit carefully. Check to see if there are any loose screws that may have occurred in transit. Take accessories and the instruction manual out of the carton. STANDARD INSTALLATION PARTS The following standard installation kits are available: •...

  • Page 4: Dimensional Outline

    Exhaust Outlet ø2-3/4”(ø70mm) DIMENSIONAL OUTLINE Air Intake Inlet ø2-3/4”(ø70mm) Access Cover Fuel Line Junction Box 3/16” (5mm) 12-5/8” (320mm) Hot Water Outlet or T&P Relief Valve (NPT 1-1/4”Male) Front Panel Cold Water Inlet or Drain Outlet (NPT 1-1/4” Male)

  • Page 5: Section C

    SECTION C: INSTALLATION WARNING: This unit must be installed in accordance with these instructions, local codes, ordinances and/or in the absence of local codes, the latest edition of the national fire protection association (NFPA31) code. Check and comply with all state, local codes and ANSI (AMERICAN NATIONAL STANDARD INSTITUTE) Z21.22 that may apply to water heater(s) before beginning the installation.

  • Page 6: Fuel Tank Installation

    The fuel tank must be purchased separately and installed by a qualified fuel supply technician. NOTE: Fuel tank installation must comply with National Fire Protection Association Code NFPA 31 or local- ly applicable codes. Check with local building officials. The following instructions should be followed for installation of a large capacity, gravity-fed fuel tank. ¡...

  • Page 7: Removing Air Trap

    When operating for the first time or when refueling an empty tank, air may be trapped in the fuel line, mak- ing ignition difficult. In this situation, after removing the trapped air thoroughly from the fuel filter at the fuel tank outlet, follow the procedures below: Press "POWER SWITCH"...

  • Page 8: Plumbing

    WARNING: Plumbing should conform to proper plumbing methods, and in conformance with local codes or regulations. A licensed plumber familiar with local codes and ordinances should install the OM-180. CAUTION: An ANSI (AMERICAN NATIONAL STANDARD INSTITUTE) listed temperature and pressure relief valve should be installed at the hot water outlet connection of the heater at the time of installation.
  • Page 9 Install heat insulation material on the hot water piping to prevent heat loss. In chosed systems we recommend the use of an antifreege solution to prevent freezing and corrosion. Check with the plumbing installer for the proper mix. Copper or stainless steel or cross-linked polyethylene pipe should be used for the main and branch pipes.

  • Page 10: Permanent Wiring Installation

    Plumbing Example (For both Hot water supply and Heating) Air release valve Temperature and pressure relief valve Drain valve Drain pipe Drain CAUTION: Always install the mixing valve on the hot water circuit piping. WARNING: TO AVOID ANY RISK OF FIRE AND ELECTRIC SHOCK. Make sure the main circuit breaker and power supply cord is disconnected before servicing.

  • Page 11: Differential Switch And Dip Switch

    DIFFERENTIAL SWITCH AND DIP SWITCH NOTE: Make sure that the power supply cord is disconnected when the position of DIP Switch is selected. The differential switch on the main circuit board controls the heat exchanger water temperature. The switch can be set at a delta (on/off) of 3.6˚F (2˚C), 18˚F(10˚C), or 36˚F (20˚C). A higher delta reduces burner short cycling.

  • Page 12: Wiring For Timer

    Connect to the circulation pump using the attached coupler. See the wiring diagram below for wiring to the circuit board. Main Circuit Board (AVAILABLE FROM AN ELECTRICAL SUPPLY COMPANY) This water heater is equipped with the connection terminal for the timer. This terminal has no-voltage con- tact.

  • Page 13: Installation Of Unit And Flue Pipe

    INSTALLATION OF THE UNIT AND FLUE PIPE SAFETY TIPS WARNING: The flue pipe opening must be fully exposed to outside air. Do not vent into a garage, basement, under the floor, or into any enclosed area. Do not install the flue pipe in close proximity to other objects or materials. Before making a hole in your wall for the flue pipe, make sure the area is free of electrical wires, gas pipes and other obstacles.
  • Page 14 INSTALLATION OF FLUE PIPE IMPORTANT: Check and comply with all state and local codes that may apply to water heater before begin- ning installation. Select unit location. Allow clearances as indicated above between the unit and all other materials Make sure that the outside area to where the flue pipe will reach is clear of any objects. NOTE: Make sure wall thickness is not greater than 10-1/2 inches.
  • Page 15 Slide the insulating cloth cover over the flexible exhaust pipe and the flexible bent joint. NOTE: When disconnecting the extension pipe (such as flexible pipe and flexible bent joint), turn clockwise and pull apart. Remove the screw from the exhaust mouth of the unit. Insert the flexible exhaust pipe to the exhaust mouth and secure them with the screw.

  • Page 16: Section D

    Raccord coudé flexible Joint de caoutchouc Collier de serrage SECTION D: TEST RUN Make sure the flue pipe is installed properly. Make sure the fuel tank is installed properly. Make sure there is no fuel leakage. Make sure there is no water leaking from piping. (Plumbing) Make sure electrical connections and grounding are wired properly.

  • Page 17: Section E

    Check with your local dealer or licensed installer. Connecting the OM-180 hot water heater with two or more appliances using the same chimney flue may affect the performance of the hot water heater. Check with your dealer for other installation options.
  • Page 18 Exhaust Pipe (Dia. = 5 inch) Barometric Draft Regulator (UL-listed) Outside Intake Pipe Top Outside Air Intake Opening (more than155 in OM-180 Fig. 1 Exhaust Pipe Adapter Intake Pipe Top Chimney Liner Chimney Heat-Resistand Sealing Matrials Exhaust Pipe Adapter Exhaust Outlet Fig.2...
  • Page 20 TOYOTOMI U.S.A., INC. 604 Federal Road, Brookfield, CT 06804 www.toyotomiusa.com This manual supersedes earlier editions. PART No.20476794 Printed in Japan New 7/05 4788003052...

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