Table of Contents
Advertisement
POWER VENTED GAS FIRED 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 vi-
cinity 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 service must be performed by a qualifi ed
installer, service agency or the gas supplier.
INSTALLATION AND
OPERATING INSTRUCTIONS
Read these instructions thoroughly before starting
CSA 4.1a-2009
322 152- 000 Rev. 00
PART No.
(12-07)
Advertisement
Table of Contents
Troubleshooting
Related Manuals for John Wood POWER VENTED GAS FIRED WATER HEATER
Summary of Contents for John Wood POWER VENTED GAS FIRED WATER HEATER
-
Page 1: Operating Instructions
INSTALLATION AND OPERATING INSTRUCTIONS Read these instructions thoroughly before starting POWER VENTED GAS FIRED 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
TABLE OF CONTENTS INTRODUCTION ......3 SAFETY LOCKOUTS ......21 User Responsibilities High Limit Controls Qualified Installer Or Service Agency... -
Page 3: Introduction
Your safety and the safety of others is very important. We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word “DANGER”... -
Page 4: Safety
Safety Warning (Scalding) SAFETY DANGER This water heater is design-certifi ed by CSA International as Hot water produced by this appliance can cause severe burns a Category III, water heater that takes its combustion and due to scalding. The hazard is increased for young children, dilution air either from the installation area or from air ducted the aged or the disabled when water temperatures exceed to the unit from the outside. -
Page 5: Relief Valve Requirements (T&P)
Relief Valve Requirements (T&P) Location Requirements IMPORTANT: All water heaters must be fi tted with a proper temperature and pressure relief valve. These valves must be certifi ed as This water heater must be installed strictly in accordance meeting the requirements of the "Standard For Relief Valves with the instructions enclosed, and all applicable electrical, For Hot Water Supply Systems, ANSI Z21.22/CSA 4.4". -
Page 6: In Earthquake Zones
Select a location as centralized within the piping system as MANUAL GAS possible. The heater should be located in an area where SHUT-OFF leakage of the tank or connections will not result in damage to the area adjacent to the water heater or to lower fl oors of the structure (see "IMPORTANT"... -
Page 7: Gas Supply Pressure
Note: An odourant is added by the gas supplier to the gas WARNING used by this water heater. This odourant may fade over an Exposure to a higher gas supply pressure extended period of time. Do not depend upon this odourant as an indication of leaking gas. -
Page 8: Typical Installation
Typical Installation 18. **Combo Heating System Return 36. Sheet Metal Burner (see Figures 6 Inlet (Optional) & 7) 19. Air Inlet Snorkel 37. Gas Manifold (see Figures 6 & 7) 1. Vent Termination Elbow with 20. **Combo Heating System Supply 38. -
Page 9: Replacement Parts And Deliming Products
Natural gas and Propane main burner with igniter assembly for 40k to 50k Btu/hr models Figure 9 Vacuum relief valve install per local codes (not supplied with heater). Figure 6 Natural gas and Propane main burner with igniter assembly for 60k to 75k Btu/hr models Figure 10 Items not supplied with the water heater... -
Page 10: Water Piping - Mixing Valve Usage
Water Piping - Mixing Valve Usage SHUT-OFF TEMPERED MIXING VALVE VALVE POTABLE WATER SHUT-OFF TEMPERED MIXING VALVE SUGGESTED PlPING COLD-WATER POTABLE WATER VALVE ARRANGEMENT FOR INLET SUGGESTED PlPING COLD-WATER TOP CONNECTIONS NON-TEMPERED ARRANGEMENT FOR INLET WATER RETURN TOP CONNECTIONS NON-TEMPERED WATER SUPPLY CERTAIN MODELS ARE... -
Page 11: Exhaust Venting
Exhaust Venting High Ambient Temperature Installations This heater is designed to exhaust the products of combustion This heater requires room air to lower the fl ue gas temperatures (fl ue gases) to the outdoors using a sealed piping system. before the gases pass through the vent system. The dilution Table 1 lists the allowable vent materials and sizing air inlets are located on the rear of the blower assembly (see information. -
Page 12: Venting Terminations And Sizing
Venting Terminations and Sizing Rodent Screens • Refer to Figure 16 and Table 1 for vent pipe materials and A vent termination screen is required to keep foreign objects, sizing. Examples of the vent terminations are shown in rodents and small birds from entering the venting system. Figures 17 and 18. -
Page 13: Calculating Equivalent Feet
Calculating Equivalent Feet WATER HEATER VENT SIZE PRESSURE MAXIMUM EQUIVALENT MINIMUM EQUIVALENT HEATER INPUT (Inside SWITCH VENT LENGTH VENT LENGTH MODEL (Btu/hr) Diam) SETTING 40 & 50 gal. 40,000 - 0.27 in. w.c. 50 ft. (15.2m) + 7 ft. (2.1m) + 60 gal. -
Page 14: Venting Instructions
Venting Instructions 1. Plan the venting layout starting at the vent termination SEALANT 152mm ATTACH and work back toward the heater. Take into consid- (6 in.) TERMINATION eration the style and position of the vent termination, ELBOW the vent pipe routing, elbows and connectors required THE END OF THE and the necessary support hangers. -
Page 15: Blower Exhaust Direction
Blower Assembly Installation 76mm (3 in.) TERMINATION MIN. LENGTH 1. This power vented water heater comes with blower MAY BE 90° ELBOW assembly installed (see Figure 26). 2. After unit is set in place, make sure blower assembly is RODENT SCREEN still mounted securely. -
Page 16: Vent Pipe Connection To Blower
Vent Pipe Connection to Blower CONFIGURATION 3” VENT CAUTION: FOR 40, 50 AND PIPE 60-GALLON (LO- • Do Not Overtighten The Top And Bottom INPUT) HEATERS 2”-3” CONNECTED TO ADAPTER* Gear Clamps Of The Rubber Coupling. 3” VENTING. (FIELD 2” RUBBER SUPPLIED) •... -
Page 17: Condensate
Condensate Water Supply Piping Installation Condensate formation does not occur in all installations of power vented water heaters, but should be drained Piping, fi ttings, and valves should be installed according to on installations where it can form in the venting system. the installation drawing (Figure 27). -
Page 18: Filling The Water Heater
Filling the Water Heater FOLLOW THE Do not insert the power cord into the electrical receptacle until TEMPERING VALVE all the following steps have been completed. MANUFACTURER'S Make sure the drain valve is closed. INSTRUCTIONS Open a nearby hot-water faucet served by the system to allow air to escape from the tank. -
Page 19: The Temperature And Pressure Relief Valve
Important: Only a new temperature and pressure relief valve T&P Relief Valve Insulation (supplied) should be used with your water heater. Do not place (Outlet opening on underside) any valve between the relief valve and the tank. The Temperature and Pressure Relief Valve: Manual Relief Lever •... - Page 20 • Ensure that the water heater and the outlet are properly grounded. Failure to properly ground the heater can pre- vent the unit from operating. • Ensure that the water heater is installed in accor- dance with prevailing provisions of the latest edition of "Canadian Electrical Code (CAN/CSA C22.1), Part I”.
-
Page 21: Safety Lockouts
SAFETY LOCKOUTS * ROTATE LEFT (CCW) TO REMOVE This water heater has several lockout features designed to prevent the heater from operating in unsafe conditions. COVER* High Limit Controls Thermostat/Water Temperature This feature is a part of the gas control valve/thermostat (see Figure 35) and limits the maximum water temperature. -
Page 22: Installation Checklist
Installation Checklist Note: Use and complete this checklist before lighting the heater. Correct any conditions that do not meet these in- structions. Check Here Check Here Vent Termination Water Heater Location Horizontal Centrally located with the water piping system. 300mm (12 in.) min. above grade or above an- Located as close to gas piping and vent pipe ticipated snow level. -
Page 23: Operating Instructions
Mixing Valves OPERATING INSTRUCTIONS Hot water can scald: Water heaters are intended to produce CAUTION: hot water. Water heated to a temperature that will satisfy space Read before proceeding. If you do not heating, clothes washing, dish washing, and other sanitizing follow these instructions exactly, a fi... -
Page 24: Lighting Instructions
Lighting Instructions Read and understand these directions thoroughly before attempting to operate the water heater. Make sure the viewport is not missing or damaged. Make sure the tank is completely fi lled with water before operating the water heater. The gas control valve/thermostat has an “On/Off Switch”... -
Page 25: Operating The Temperature Control System
Operating The Temperature Control The water temperature setting was factory set at the lowest System temperature. It is recommended that lower water temperatures be used This water heater is equipped with an adjustable thermostat to avoid the risk of scalding. It is further recommended, in to control water temperature. -
Page 26: Operation
Smoke/Odour OPERATION The water heater may give off a small amount of smoke and Burner Flames odour during the initial start-up of the unit. This is due to Inspect the burner fl ames through the viewport and compare the burning off of oil from metal parts of a new unit and will them to the drawings in Figure 36. -
Page 27: Maintenance
MAINTENANCE Make sure that the gas is turned on to the water heater. Initiate a call for heat by either drawing hot water from Draining and Flushing a nearby faucet or raising the temperature setting (see It is recommended that the user drain and fl ush the tank section “Temperature Regulation”). -
Page 28: Burner Operation And Inspection
Burner Operation and Inspection Housekeeping At least once a year a visual inspection should be made of the DANGER main burner and the hot surface igniter assembly for proper fl ame characteristics and ignition sequences. This can be Fire and Explosion Hazard done by removing the outer door and viewing the main burner operation through the viewport on the inner door (see Figure •... -
Page 29: To Remove The Anode Rod
• To Install the Anode Rod Significant sections of the support wire (approx. 1/3 or Use Teflon® tape or an approved pipe sealant on threads more of the anode rod’s length) are visible. If the anode rod show signs of either or both it should be of the new anode rod. -
Page 30: Venting System And Blower
Venting System and Blower WARNING Keep the area around the heater clear and unobstructed. Inspect the venting system periodically to make certain that the vent passageways, vent terminal and blower assembly are free and unobstructed. Ensure that any condensate is draining freely. -
Page 31: Combo Heating
COMBO HEATING Install a drain valve at the lowest point of the heating loop so that water can be drained from the heating module This section serves as a guide for the installation and use without affecting the water heater. of "Combo"... -
Page 32: Troubleshooting Guide
TROUBLESHOOTING GUIDE These guidelines should be utilized by a qualifi ed service agent. PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION Air inlets blocked Unblock inlet air openings BURNER FLAME Insuffi cient secondary air Provide ventilation to water heater TOO HIGH Orifi ce too large Replace with correct orifi... - Page 33 PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION Air inlets blocked Unblock inlet air openins Insuffi cient secondary air Provide fresh air ventilation to the water Flue clogged heater Heater installed in a confi ned area Clean, locate source and correct COMBUSTION ODOURS House too tight Provide fresh air ventilation to the water heater...
-
Page 34: Eco Reset
PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION HOT SURFACE IGNITER 120VAC polarity reversed at 120VAC outlet Reverse polarity at 120VAC outlet NOT GLOWING receptacle receptacle FOLLOWING WARM-UP Defective hot surface igniter Replace igniter PERIOD Defective gas control valve/thermostat Replace gas control valve/thermostat Blower does not run when heater fi... -
Page 35: System Error Codes
System Error Codes The micro-controller inside the gas control monitors the fl ammable vapour safety features, the ignition sequence, temperature settings and overall operation of the heater. If any of these parameters does not operate properly the controller will shut down the water heater, diagnose the failure and fl... -
Page 36: Reference Parts
REFERENCE PARTS Reference Parts Listing 11. Gas Valve Electronic Control Module 26. Rubber Coupling (Honeywell) 27. Gear Clamp And Cover Replacement parts may be ordered 12. Drain Valve 28. Flue Collector through your plumber or the local 13. Outer Gas Door 29. - Page 37 Natural gas and Propane main burner with igniter assembly for 40k to 50k Btu/hr models Flare Nut** Figure 49 Notes: * Natural gas models have Right-hand thread, Propane models have Left-hand thread. ** For Natural gas models the Flare Nut has Right- Figure 46 hand thread.
-
Page 38: Limited Warranty
LIMITED WARRANTY When referencing the water heater for service or warranty, please refer to the rating plate af xed to the unit for the following information: Model Number Use Copper Conductors Only AUTOMATIC STORAGE WATER HEATER Warranty Code: Catalogue Number For currenlly installed rating see element marking. - Page 39 The unenforceability of any provision, in whole or in part, of this Certi cate shall not affect the remaining provisions. Any and all repair and/or replacement of part(s) or Unit are the sole and exclusive remedy avail- able against the Manufacturer. John Wood Water Heaters 599 Hill Street West Fergus, ON Canada N1M 2X1 Should you have any questions, please Visit us online at www.johnwoodwaterheaters.com, or...