John Wood Water Heater Installation And Operating Instructions Manual
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John Wood Water Heater Installation And Operating Instructions Manual

Atmospheric vented water heater
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ATMOSPHERIC VENTED WATER HEATER
WARNING:
Improper installation, adjustment, altera-
tion, service, or maintenance can cause
injury or property damage. Refer to this
manual. For assistance or additional infor-
mation, consult a qualified installer, ser-
vice agency, or the gas utility.
FOR YOUR SAFETY
• Do not store or use gasoline or other
flammable vapours and liquids in the
vicinity of this or any other appliance.
• Installation and service must be per-
formed by a qualified installer, service
agency or the gas utility.
WARNING:
If the information in these instructions is
not followed exactly, a fire or explosion
may result causing property damage, per-
sonal injury or death.
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
OPERATING INSTRUCTIONS
Read these instructions thoroughly before starting
3 2 4 3 3 3 - 0 0 0 Rev. 0 1
PART NO.
(13-04)

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  • Page 1 INSTALLATION AND OPERATING INSTRUCTIONS Read these instructions thoroughly before starting ATMOSPHERIC VENTED WATER HEATER WARNING: Improper installation, adjustment, altera- tion, service, or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional infor- mation, consult a qualified installer, ser- vice agency, or the gas utility.

  • Page 2: Table Of Contents

    Safety Shut-off In Earthquake Zones Anode/Water Odour Clearances and Accessibility Water Heater Operation (24 Volt only) Gas Supply System Error Codes for 24 Volt Controls Gas Pressure VI) MAINTENANCE ......21...

  • Page 3: I) Introduction

    Resistant Water Heater. Your satisfaction with this product a Category I, non-direct vented water heater which takes its is very important to us. This gas-fired water heater has been combustion air either from the installation area or from air developed to produce domestic hot water and may also be ducted to the unit from the outside.

  • Page 4: Safety Warning (Flammable Vapours)

    The gas-fired If this water heater has been exposed to flooding, freezing, water heater igniter or main burner flame can ignite these fire or any unusual condition, do not put it into operation until...

  • Page 5: Iii) Installation

    Locate the water heater such that all controls are easily If you observe damage to the water heater or any of its com- accessible, and the rating plate is visible. ponents, DO NOT ASSEMBLE OR INSTALL IT OR MAKE ANY ATTEMPT TO FIX THE DAMAGED PART(S).

  • Page 6: Gas Supply

    Figure 7. positioned horizontally (parallel to the bottom of the heater) If the water heater is located in an area that is subject to and in the designated position of 38mm (1.5 in.) below the an excessive amount of lint, dirt or oil, it may be necessary flame-arrestor.

  • Page 7: Gas Pressure

    14 must be measured during water heater operation. in. w.c. (3.5 kPa) or greater, the water heater and its manual shut-off valve must be disconnected from the gas supply The gas control supplied with this water heater is designed piping system and the line capped.

  • Page 8: Exhaust Venting

    When burned, vapours from these products form highly GRADE corrosive acid compounds. These products should not be stored or used near the water heater or air inlet. COMBINATION The area in which the heater is located is classified as either...

  • Page 9: Union Connections

    Confined Space Air Requirements for U.S. Installations Refer to Figure 6 (a), (b), (c) or (d) for proper sizing and location of combustion air ducts and openings. CHECK LOCAL CODES. PERMANENT (a) Equipment located in confined spaces; all air from OPENINGS inside the building.

  • Page 10: Temperature And Pressure (T&P) Relief Valve

    Figure 9. Do not alter the drafthood in any way. If you are dance with all local and provincial or state codes and with replacing an existing water heater be sure to use the new the latest edition of “Natural Gas and Propane Installation drafthood supplied with the water heater.

  • Page 11: Installations Check

    HOT WATER OUTLET Please note the following: DO NOT install this water heater with iron piping. The sys- tem should be installed only with new piping that is suitable for potable (drinkable) water such as copper, CPVC or poly- butylene. DO NOT use PVC water piping.

  • Page 12: Temperature Adjustment

    Refer to Figure 12 for a typical T&P valve installation. Important: Only a new temperature and pressure relief valve should be used with your water heater. Do not use an old or existing valve as it may be damaged or not adequate for the working pressure of the new water heater.

  • Page 13: Lighting Instructions

    Important: Do not use an extension cord to connect the water heater to an electrical outlet. • Ensure that the water heater and the outlet are properly grounded. Failure to properly ground the heater can pre- vent the unit from operating.

  • Page 14: Lighting Instructions

     Is the water heater connected to the correct gas code requiring a specific hot water temperature at the tap, supply as shown on the rating plate (Natural Gas/ then you must take special precautions.

  • Page 15: V) Operation

    Temperature Adjustment GAS CONTROL 49°C (120°F) MARK The thermostat of this water heater has been factory set at KNOB its lowest position. It is adjustable and must be set to the desired temperature setting. The preferred starting point is 49°C (120°F). Turn the water temperature dial clockwise to decrease the temperature, or counterclockwise increase the temperature.

  • Page 16: Vi) Maintenance

    If you don’t smell gas, go to the next step. Reniflez tout autour de l'appareil, y compris près du plancher, 7. Make sure the water heater is filled with water. pour déceler une odeur de gaz. Si vous sentez une odeur de gaz, 8.

  • Page 17: Cleaning The Combustion Chamber And Flame-Arrestor

    Lighting Instructions (Honeywell 24 Volt) FOR YOUR SAFETY READ POUR VOTRE SÉCURITÉ, LISEZ BEFORE LIGHTING ATTENTIVEMENT AVANT L’ALLUMAGE WARNING: AVERTISSEMENT: If you do not follow Tout manquement aux présentes these instructions exactly, a fire or directives peut causer un incendie ou une explosion explosion may result causing property résultant en des dommages matériels, des blessures ou damage, personal injury or loss of life.

  • Page 18: Piezoelectric Igniter System

    (usually about 1 hour), the condensation will stop. lated rod or the igniter. Note: At initial start-up, in certain extremely cold conditions and if the water heater is not allowed enough time to reach Emergency Shut Down the room temperature, the pilot burner might be extin-...

  • Page 19: Removing The Manifold/Burner Assembly

    Water Heater Operation (24 Volt only) Excessive lint and or dust build-up Thermostat calls for heat A dual safety switch is part of the water heater safety sys- Within 15 seconds: tem. The gas control is connected to a door-mount, manu- •...

  • Page 20: Removing The Burner From The Manifold/Burner Assembly

    "Heartbeat", alternates Call For Heat down the water heater, diagnose the failure and flash an bright/dim (no fault conditions) error code. Table 3 lists the system status Codes for the 24...

  • Page 21: Vii) Combo Heating

    I to burner and flame arrestor. IX of this manual. Water heater failure that is a result of the Check the water heater for the following: heating system is not covered by warranty.

  • Page 22: Ix) Troubleshooting Guide

    DISCHARGE LINE TO DRAIN 2. The thermocouple routing and TCO location is important Figure 21 T&P Relief Valve Test for the proper operation of this water heater. A kit with a replacement thermocouple, complete with bending Resetting and Replacing the Safety...
  • Page 23 Both the Electronic Control Module and the Valve Module of this control may be changed without the need to disconnect the threaded control fitting from the body of the water heater. Almost all gas valve failures will be corrected by replacing the Electronic Control Module (ECM).

  • Page 24: Status Light And Diagnostic Code Troubleshooting Chart

    Temperature Sensor and Cable Replacement Do not remove the entire gas control assembly from the water heater. To remove the Temperature Sensor and Cable: 1. Remove the Electronic Control Module as outlined above. Note: When removing the control module from the gas con- trol assembly, care is required to disengage the pins on the valve module.
  • Page 25 ALLOW THIS TYPE OF INSTALLATION. 2. A water heater which will be used to supply potable water must not be connected to any heating system or compo- RADIATOR OR RADIANT FLOOR PIPING ARE nents previously used with a non-potable water heating VIABLE ALTERNATIVES TO AIR HANDLER.

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