CLEAN BURN CB-200-CTB, Руководство оператора

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Coil Tube Boiler Operator's Manual: Models CB-200-CTB, CB-350-CTB, and CB-500-CTB
10-1
SECTION 10: THE CTB HYDRONIC SYSTEM
Understanding the CTB Hydronic System
The Clean Burn Coil Tube Boiler (CTB) is designed to function as a low-mass boiler (i.e. it will not
maintain boiler water temperature when there is no call for heat).
Low-mass boilers require that a
sufficient, constant flow of water be maintained through the coil in order to: (a) remove the heat from
the boiler when the burner is firing AND (b) prevent the flow switch from shutting off the burner.
IMPORTANT NOTE: When designing the system layout and application for your CTB, keep in mind
that it is NOT suitable for open systems. The Clean Burn CTB has been designed to operate as an
ASME Section IV Boiler (i.e. closed loop boiler system). Potable water heating (i.e. for domestic or
washing purposes) can be accomplished by incorporating a heat exchanger into the system.
Special Safety Guidelines for the Design and Installation of Hydronic Systems
Adhere to the following Safety Guidelines when designing and setting up the CTB hydronics system:
• The CTB must be installed on non-combustible flooring.
• The CTB must be installed in accordance with national, state, and local plumbing, heating,
and electrical codes and the regulations of the serving utilities which may differ from this
manual. Authorities having jurisdiction should be consulted before installations are made.
In all cases, reference should be made to the following standards:
(1) Current Edition of American National Standard ANSI/NFPA 31, "Installation of Oil Burning
Equipment" for clearances between boiler, vent connector and combustible material.
(2) Current Edition of American National Standard ANSI/NFPA 211, "Chimneys, Fireplaces, Vents, and
Solid Fuel Burning Appliances" for chimney requirements, type of venting material and clearances between
vent connector pipe and combustible materials.
(3) Current Edition of American Society of Mechanical Engineers ASME CSD-1, "Controls and Safety
Devices for Automatically Fired Boilers" for assembly and operation of controls and safety devices.
• The heating system must be designed by a competent hydronics contractor, and only persons
knowledgeable in the layout and installation of hydronic heating systems should install this
boiler.
• The boiler must be connected to an approved chimney in good condition. Serious property
damage could result if the boiler is connected to a dirty or inadequate chimney. The interior
of the chimney flue must be inspected periodically through the heating season for any
obstructions. A clean and unobstructed chimney flue is necessary to allow noxious fumes
that could cause serious injury to vent safely and will contribute toward maintaining
the boiler's efficiency.
• It is the responsibility of the installing contractor to see that all controls are correctly
installed and are operating properly when the installation is completed.
• To ensure optimum performance, qualified personnel must perform proper and timely
maintenance on the CTB according to the procedures provided in Section 9 of this manual.