MG & SG Series Boilers – Installation and Service Manual
6
1.5 TO TURN OFF GAS TO THE BOILER OR EMERGENCY SHUT-OFF.
WARNING
Should boiler overheat, or the gas supply fail to shut off, do not turn off or disconnect the
electrical supply to the circulating pump. Instead, shut off the gas supply at a location external
to the boiler.
1. Set the thermostat to the lowest setting.
2. Turn all electrical power to the boiler off.
3. Remove control access panel on the boiler if necessary.
4. Push in gas control knob slightly and turn clockwise
to "OFF". Do not force it.
5. Replace control access panel if necessary.
Installation Instructions Section 2
2.1 RECEIVING
INSPECT SHIPMENT FOR POSSIBLE DAMAGE. All goods are carefully manufactured, inspected,
checked and packed by experienced workers. The manufacturer's responsibility ceases upon delivery of
goods to the carrier in good condition. Any claims for damage, shortage in shipment or non-delivery must
be filed immediately against the carrier by the consignee.
Use care when receiving and unpacking the boiler. Dropping the boiler may cause damage and prevent
safe and proper operation.
2.2 INSTALLATION CODES AND REQUIREMENTS
All applicable national, provincial/state, and local codes, laws, regulations, and ordinances must be
followed. They expand on and take precedence over any recommendations in this booklet. Authorities
having jurisdiction shall be consulted before installations are made.
In Canada, the installation must conform to the requirements of the authority having jurisdiction or, in the
absence of such requirements, to the CAN/CSA B149 Installation Codes (current edition). All electrical
wiring must be in accordance with the Canadian Electrical Code, CSA C22.1 Part 1 (current edition) and
applicable local codes.
In the United States of America, the installation must conform to the requirements of the authority
having jurisdiction or, in the absence of such requirements, to the National Fuel Gas Code, ANSI Z223.1
(current edition). All electrical wiring must be in accordance with the National Electrical Code, ANSI/NFPA
70 (current edition) and applicable local codes.
Where required by the authority having jurisdiction, follow the Standard for Controls and Safety Devices
for Automatically Fired Boilers, ANSI/ASME CSD-1 (current edition).
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