Typical Specification
CH-SPEC-02
Typical Specification for Lochinvar® Copper-Fin II® Boiler
Models 399,999 – 750,000 Btu/Hr
The BOILER shall be a LOCHINVARCOPPERFINII Model CH(N,L)______having an input rating of ______Btu/Hr, an output of ______ Btu/Hr and shall be operated on (Natural Gas) (L.P. Gas).
The water containing section shall be of a "Fin Tube" design, with straight copper tubes having extruded integral fins spaced seven (7) fins per inch. The tubes shall terminate into a one piece, glass lined, cast iron header. There shall be no bolts, gaskets or "O" rings in the head configuration. There shall be access to the front header of the heat exchanger for the purposes of inspection, cleaning or repair. The heat exchanger shall be mounted in a stress free jacket assembly in order to provide a "free floating design" able to withstand the effects of thermal shock. The BOILER shall bear the ASME "H" stamp for 160 psi working pressure and shall be National Board listed. The complete heat exchanger assembly shall carry a ten (10) year limited warranty.
The combustion chamber shall be sealed and completely enclosed with "LochHeat™" ceramic fiberboard insulation. A burner/flame observation port shall be provided. The burners shall be constructed of high temperature stainless steel and fire on a horizontal plane. The BOILER shall have an integral variable speed combustion air blower to precisely control the fuel/air mixture for maximum efficiency. The 399,999 and 500,000 Btu/Hr models shall proportionally fire with two stages of burner input, the 650,000 and 750,000 Btu/Hr models shall proportionally fire with three stages of burner input.
The BOILER shall be constructed with a heavy gauge galvanized steel jacket assembly, primed and pre-painted on both sides with a minimum dry film thickness of 0.70 mils. The jacket design shall allow single unit venting connection without the use of external draft hood devices.
The BOILER shall be certified and listed by C.S.A. International under the latest edition of the harmonized ANSI Z21.13 test standard for the US and Canada. The BOILER shall comply with the energy efficiency requirements of the latest edition of the ASHRAE 90.1 Standard. The BOILER shall operate at a minimum of 84% thermal efficiency.
Standard operating controls shall include a ______(2 or 3) stage programmable digital temperature controller with an LCD display to control water temperatures. The digital temperature control shall display boiler inlet temperature and boiler outlet temperature as well as individual stage set points and differentials. The digital controller shall have a +/1o F accuracy. The control panel shall have a lighted master switch to indicate main power on, sequential indicating lights and diagnostic indicator lights.
The BOILER shall provide ______(2 or 3) individual stages of control. Multiple main gas valves with redundant valve seats and built in low gas pressure regulators shall be supplied as standard for each stage of burner operation. Gas valves will be referenced to the combustion chamber to ensure proper air/gas mixture for efficient combustion. Each proportional stage shall provide for on/off control of individual gas valves for the burners and cycling of a variable speed combustion air fan as required to maintain maximum efficiency at all stages of operation.
The standard operating control system shall include a proven electronic Hot Surface Ignition system with full flame monitoring capability. The ignition module shall go into a hard lockout on flame failure which requires pushing a separate manual reset button to allow the ignition module to begin a new trial for ignition sequence. The ignition module shall go into a soft lockout on conditions of low air, low voltage or low igniter current. At a soft lockout, the module will pause for a timed period based on the fault and then begin a new trial for ignition sequence. If the soft lockout fault has not been corrected, the module will continue in the soft lockout condition. The ignition system shall provide remote indication of a full diagnostic sequence via a flashing ignition module status light on the control panel.
Additional standard controls shall include a high temperature limit control, an air pressure switch to monitor low air and blocked flue conditions, low voltage transformer with a 5 amp circuit breaker for the control circuit, an ASME pressure relief valve and a temperature/pressure gauge. The manufacturer shall verify proper operation of the burners, all controls and the heat exchanger by connection to water and venting for a factory fire test prior to shipping. A quality test report shall be shipped with each unit.
A 24 VAC control circuit and components shall be used. All components shall be easily accessed and serviceable. All wire harness connections to components shall have multipin plug in type connectors to ease service, troubleshooting and lower removal and replacement cost.
The control panel shall contain the electronic temperature controller’s LCD display and DiagnosticInformationCenter containing individual indicators of current unit status and control sensed fault conditions. Indication lights shall be provided for power on, pre-purge, trial for ignition, flame failure, low air and one light for each individual stage of burner operation The ignition module status light shall also be visible from the units control panel.
The BOILER shall be approved for indoor or outdoor installation. The BOILER shall be approved for Sidewall, DirectAire® Vertical, DirectAire Horizontal and conventional venting (See mechanical detail). Venting shall be classified Category I, negative draft, noncondensing, to use type "B" double wall venting materials. The DirectAire venting systems shall allow direct connection of a duct to supply combustion air to the unit. The DirectAire Vertical vent system may draw combustion from either the side wall or roof top, DirectAire Horizontal must draw combustion air from the sidewall.
The BOILER shall have an independent laboratory rating for Oxides of Nitrogen (NOx) of less than 30 ppm corrected to 3% O2.
Maximum unit dimensions shall be: Length ______inches, Width ______inches and Height ______inches. Maximum unit weight shall be______pounds.
The Firing Control System shall be ______(Options Below). Prefix "M" denotes Standard Proportional Stage Firing.
FIRINGCONTROLSYSTEMS
M-9Two Stage Hot Surface Ignition with Electronic Supervision
M-13GE GAP/FM/IRI
M-7California Code
Minnesota Code
Massachusetts Code
Kentucky Code
CSD-1 NOTE: Due to the large discrepancy in CSD-1 requirements from state to state, please confirm to the factory all controls required in your jurisdiction.
02/07 – Printed in U.S.A.