2
L o c h i n v a r
D E S I G N E R
’
S G U I D E E F F I C I E N C Y
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W A T E R H E A T E R
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Lochinvar
CODES
The equipment
MUST
be installed in
accordance with those installation regulations
in effect in the local area where the installation
is to be made. These
MUST
be carefully
followed in all cases. Authorities having
jurisdiction
MUST
be consulted before
installations are made. In the absence of such
requirements, the installation
MUST
conform
to the latest edition of the National Fuel Gas
Code, ANSI Z223.1. Where required by the
authority having jurisdiction, the installation
MUST
conform to American Society of
Mechanical Engineers Safety Code for
Controls and Safety Devices for Automatically
Fired Boilers, No. (CSD-1). All boilers conform
to the latest edition of the ASME Boiler and
Pressure Vessel Code, Section IV. Where
required by the authority having jurisdiction,
the installation
MUST
comply with the
Canadian Gas Association Code, CAN/CGA-
B149.1 and/or B149.2 and or local codes.
LOCATION OF UNIT
Locate the unit so that if water connections
should leak, water damage will not occur.
When such locations cannot be avoided, it
is recommended that a suitable drain pan,
adequately drained, be installed under the
unit. The pan
MUST NOT
restrict
combustion airflow.
Under no circumstances
is the manufacturer to be held responsible
for water damage in connection with this
unit or any of its components.
•
Water Velocity – Flow Rate
(See page 16 for Required
Temperature Degree Rise chart.)
•
Factory Supplied
Pump Capacity
(See page 16 for Pump Operation.)
•
Manifold Pipe Size
When using more than one heater
(See page 17 for Common Water
Manifold Size for Multiple Water
Heater Installation table.)
•
Storage Tank Circulating
Tappings
(See page 17 for Manifold Pipe
Size.)
•
Placement of Cold Water Inlet
and Building Return
(See Appendix A for Water Heater
Piping Diagrams.)
•
Water Hardness
(
See page 16 for Water Treatment
Information.)
In designing a hot
water heater system,
pay special attention to:
1.
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