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Weil-McLain
500 Blaine Street
Michigan City, IN 46360-2388
http://www.weil-mclain.com
C-822R1(0803)
Page 4 of 4
F. Optional Components
1. WGO or WTGO Boiler(s) only: The boiler(s) shall be able to be provided with an optional
relief valve set to relieve at 50 PSIG.
2. The boiler(s) shall be able to be installed with an optional tankless heater (Not available for
Model WGO Boiler(s); standard on Model P-WTGO Boiler(s)).
• Tankless heater must be specified when order is placed.
• Tankless heater shall have ½” inlet and outlet openings for Model A- or B-WTGO
Boiler(s) and ¾” inlet and outlet openings for a SGO Boiler(s).
• If installed with a tankless heater, water boilers shall be furnished with a combination
hi-low temperature limit control in lieu of standard hi limit control; steam boilers shall
be furnished with an additional temperature limit control.
3. Model A- or B-SGO Boiler(s) only: The boiler(s) shall be able to be provided with an
optional low water cut-off (LWCO).
• LWCO must be specified when order is placed.
• LWCO shall be ( ) electrode or ( ) float-mechanism (check one) type capable of
shutting down the boiler in event of a low water situation.
G. Boiler Manuals
1. The boiler(s) shall be provided with complete instruction manuals, including:
• Boiler Installation Manual
• Maintenance and Service Guide