John Wood Envirosense Power Direct Vent (prior to May 2010) - Manual (Page 5)

5
thank You for purchasing this water heater. Properly installed and
maintained, it should give you years of trouble free service.
Abbreviations Found In This Instruction Manual:
• CSA - Canadian Standards Association
• ANSI - American National Standards Institute
• NFPA - National Fire Protection Association
• ASME - American Society of Mechanical Engineers
• GAMA - Gas Appliance Manufacturer’s Association
• UL - Underwriters Laboratories Inc.
This gas-fired water heater is design certified by Underwriters
Laboratories Inc. under American National Standard/CSA
Standard for Gas Water Heaters ANSI Z21.10.3 • CSA 4.3 (current
edition).
preparInG for the InstallatIon
1. Read the “General Safety” section, page 3 and 4 of this manual
first and then the entire manual carefully. If you don’t follow the
safety rules, the water heater will not operate properly. It could
cause DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY
DAMAGE.
This manual contains instructions for the installation, operation,
and maintenance of the gas-fired water heater. It also contains
warnings throughout the manual that you must read and be
aware of. All warnings and all instructions are essential to the
proper operation of the water heater and your safety. Since we
cannot put everything on the first few pages, read the entIre
Manual Before atteMptInG to Install or operate
the water heater.
2. The installation must conform with these instructions and the
local code authority having jurisdiction. In the absence of local
codes, installations shall comply with the Natural Gas and Propane
Installation Code CAN/CSA B149.1 and the Canadian Electrical
Code CAN/CSA C22.1. These publications are available from the
Canadian Standards Association, 5060 Spectrum Way, Suite 100,
Mississauga, Ontario, Canada L4W 5N6.
3. The water heater when installed must be grounded in accordance
with the local codes, or in the absence of local codes: the Canadian
Electrical Code (C22.1).
4. If after reading this manual you have any questions or do not
understand any portion of the instructions, call the local gas utility
or the manufacturer whose name appears on the rating plate.
5. Carefully plan the place where you are going to put the water
heater. Correct combustion, vent action, and vent pipe installation
are very important in preventing death from possible carbon
monoxide poisoning and fires, see Figures 1 and 2.
Examine the location to ensure the water heater complies with
the “Facts to Consider About Location” section in this manual.
IntroductIon
taBle of contents
SAFE INSTALLATION, USE AND SERVICE............................2
GENERAL SAFETY..................................................................3
TABLE OF CONTENTS ............................................................5
INTRODUCTION ......................................................................5
Preparing for the Installation .............................................5
Get to Know Your Water Heater ........................................6
INSTALLATION CONSIDERATIONS .......................................7
Rough In Dimensions........................................................7
Water Piping - Mixing Valve Usage ...................................8
Facts to Consider About Location .....................................9
Insulation Blankets ..........................................................10
Combustion Air and Ventilation .......................................10
Appliances in Unconfined Spaces ...........................10
Appliances in Confined Spaces ..............................10
INSTALLING THE WATER HEATER ..................................... 12
Chemical Vapor Corrosion ..............................................12
Water Piping ...................................................................12
Temperature-Pressure Relief Valve ................................13
Gas Piping ......................................................................14
Sediment Traps ...............................................................15
Filling the Water Heater ..................................................15
Venting ............................................................................15
Vent Pipe Termination ............................................... 15-16
Planning the Vent System ...............................................18
Condensate.....................................................................18
Installation of Vent System..............................................19
Vent Terminal Installation, Sidewall .................................19
Sequence of Installations, Figure 18A ............................19
Direct Venting..................................................................19
Direct Vent Terminal Installation ......................................19
Installation Sequence......................................................20
Vertical Vent Terminal Installation ...................................20
Installation of Vent System, Sidewall ..............................21
Installation of Vertical Vent System .................................21
Vent Pipe Preparation .....................................................25
Controls and Switches ....................................................27
Power Vent Wiring Schematic.........................................28
LIGHTING & OPERATING LABEL .........................................29
TEMPERATURE REGULATION ............................................30
USING THE ELECTRONIC CONTROLLER ..........................31
FOR YOUR INFORMATION ...................................................35
Start Up Conditions
Smoke/Odor ............................................................35
Thermal Expansion .................................................35
Strange Sounds ......................................................35
Operational Conditions ...................................................35
Smelly Water ...........................................................35
“Air” in Hot Water Faucets .......................................35
PERIODIC MAINTENANCE ...................................................36
Venting System Inspection..............................................36
Burner Operation and Inspection ....................................36
Burner Cleaning ..............................................................36
Housekeeping .................................................................36
Anode Rod Inspection.....................................................37
Temperature-Pressure Relief Valve Operation ...............37
Draining...........................................................................37
Service ............................................................................38
LEAKAGE CHECKPOINTS ....................................................38
TROUBLESHOOTING ...........................................................39
NOTES ...................................................................................40
WARRANTY ...........................................................................41