This design complies with the current edition of ANSI Z21.10.3 as
an automatic circulating tank type water heater and automatic
storage water heater.
Detailed installation diagrams are found in this manual. These
diagrams will serve to provide the installer with a reference for the
materials and methods of piping necessary. It is highly essential
that all water, gas piping and wiring be installed as shown on the
diagrams.
Particular attention should be given to the installation of
thermometers at the locations indicated on the diagrams as these
are necessary for checking the proper functioning of the heater.
FOREWORD .......................................................................................
FEATURES .........................................................................................
Circulating Pump ............................................................................
Flow Diagram ................................................................................
Drain Valve ....................................................................................
Blower Assembly ..........................................................................
Blower Plenum ..............................................................................
Air Hose ........................................................................................
Flue Adapter ..................................................................................
Exhaust Vent .................................................................................
CONTROL SYSTEM ...........................................................................
On/Off Switch ...............................................................................
Transformer ..................................................................................
Junction Box .................................................................................
Tank Insulation ...............................................................................
CABINET ASSEMBLY .........................................................................
Cabinet Panels ..............................................................................
Gas Valve ......................................................................................
Flame Sensor ................................................................................
Required Ability .............................................................................
Locating The Heater ...................................................................... 11-12
Roof Curb ...................................................................................... 12-13
Rig and Place Unit .........................................................................
Outdoor Stand ...............................................................................
Clearances ....................................................................................
Hard Water ....................................................................................
Air Requirements ..........................................................................
FOREWORD
In addition to these inst ruct ions, the equipment shall be
installed in accordance with all local codes. The authority
having jurisdiction should be consulted before installing.
In the absence of local codes, the installation must comply
with the current editions of the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 and the National Electric Code, NFPA 70.
The former is available from the Canadian Standards
Association, 8501 East Pleasant Valley Road, Cleveland, OH
44131, and both documents are available from the National
Fire Protection Association, 1 Batterymarch Park, Quincy, MA
02269.
TABLE OF CONTENTS
PAGE
2
3
VENTING ............................................................................................
4
Vent Terminals ...............................................................................
5
Pressure Switches .......................................................................
5
Gas Piping ..................................................................................... 15-16
6
5
Purging ..........................................................................................
6
6
5
Gas Valves ....................................................................................
5
7
Thermometers ...............................................................................
7
Relief Valve ...................................................................................
7
7
Closed System ..............................................................................
7
8
Water Heater Wiring ...................................................................... 17-18
8
OPERATION ........................................................................................ 19-20
8
8
Error Codes ...................................................................................
8
Fault Conditions ............................................................................. 21-22
8
PRIOR TO START-UP .........................................................................
9
Required Ability .............................................................................
9
9
9
9
Precautions ...................................................................................
10
10
10
Power Burner ...............................................................................
10
High Limit .......................................................................................
10
10
MAINTENANCE ..................................................................................
11
General ..........................................................................................
11
11
Flushing .........................................................................................
11
Draining .........................................................................................
11
Sediment Removal .........................................................................
11
Lime Scale Removal ...................................................................... 26-27
11
11
Relief Valve ...................................................................................
12
Circulating Pump ............................................................................
Vent System ..................................................................................
13
14
14
TROUBLE-SHOOTING ........................................................................ 33-34
14
REPLACEMENT PARTS ......................................................................
14
LIMITED WARRANTY .........................................................................
4
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