FOREWORD
This design complies with the latest edition of the ANSI Standard
Z21.10.3 for gas water heaters Vol. III Storage Water Heaters
with input ratings above 75,000 BTU per hour Circulating and
Instantaneous.
Detailed installation diagrams are in this manual. These diagrams
will serve to provide the installer with a reference for the materials
and method of piping suggested. IT IS ESSENTIAL THAT ALL
WATER AND GAS PIPING AND THE ELECTRICAL WIRING BE
INSTALLED AND CONNECTED AS SHOWN IN THE DIAGRAMS.
You should thoroughly read and understand this manual before
installation and operation of this unit.
CHECK THE DIAGRAMS THOROUGHLY BEFORE STARTING
INSTALLATION TO AVOID POSSIBLE ERRORS AND TO
MINIMIZE TIME AND MATERIALS COST.
Particular attention should be given to the installation of
thermometers at the locations indicated in the diagrams as these
are necessary for checking the operation of the heater.
MAKE SURE THE GAS ON WHICH THE HEATER WILL
OPERATE IS THE SAME AS THAT SPECIFIED ON THE HEATER
MODEL AND RATING PLATE.
TABLE OF CONTENTS
FOREWORD .......................................................................................
Precautions ....................................................................................
FEATURES .........................................................................................
Thermal Balancer ...........................................................................
Circulating Pump ............................................................................
Important ........................................................................................
Required Ability ..............................................................................
Location .........................................................................................
Levelling .........................................................................................
Air Requirements ...........................................................................
Venting ...........................................................................................
Relief Valve ....................................................................................
Hard Water .....................................................................................
GENERAL SAFETY INFORMATION
PRECAUTIONS
If the unit is exposed to the following, do not operate heater until
all corrective steps have been made by a qualified serviceman:
1. FLOODING TO LEVEL OF BURNER OR CONTROLS OR
HIGHER.
2. EXPOSURE TO FIRE.
The factory warranty will be void if the unit(s) have been improperly
installed or operated.
In addition to these instructions, the boiler(s) shall be installed in
accordance with those installation regulations in force in the local
area where the installation is to be made. These shall be carefully
followed in all cases. Authorities having jurisdiction should be
consulted before installations are made.
In absence of local codes, the installation must comply with the
latest editions.
In the United States:
The National Fuel Gas Code, ANSI Z223.1 and the National
Electric Code, NFPA 70.
In Canada:
The Installation Code CAN/CGA B149.1 and .2 (latest edition)
and the Canadian Electric Code, CSA C22.1.
These are available from the Canadian Standards Association,
8501 East Pleasant Valley Road, Cleveland, OH 44131, USA, or,
Canadian Gas Association Laboratories, 55 Scarsdale Road, Don
Mills, Ontario M3B 2R3, Canada.
PAGE
2
PIPING DIAGRAMS ............................................................................ 11-13
3
Gas Connections ........................................................................... 14-15
3
3-4
OPERATION ........................................................................................
4
Important .......................................................................................
4
General ...........................................................................................
4
Filling ..............................................................................................
4
5
5
5
5
5-6
I.I.D. Pilot Burner ........................................................................... 20-21
6
6
6-7
7
Thermal Balancer ...........................................................................
7
8
8
Relief Valve ...................................................................................
8
Circulating Pump ............................................................................
8
Electrical Service ...........................................................................
8
Replacement Parts ........................................................................
8
8-9
9
9-10
Deliming Solvents ..........................................................................
10
10
10
CHECKOUT ........................................................................................ 24-27
10
LIMITED WARRANTY ........................................................................
3. IF DAMAGED.
4. FIRING WITHOUT WATER.
5. SOOTING.
KEEP THE HEATER AREA CLEAR AND FREE FROM
COMBUSTIBLE MATERIALS, GASOLINE AND OTHER
FLAMMABLE VAPORS AND LIQUIDS. AREA AROUND HEATER
MUST NOT CONTAIN OBSTRUCTING MATERIAL TO THE
FLOW OF COMBUSTION AND VENTILATING AIR.
3
PAGE
17
17
17
17
17
18
19
20
20
21
21
21
21
22
22
22
22
22
22
23
23
28