Slant/Fin LYNX LX-85A Installation And Operating Instructions Manual

National Excelsior Company
www.excelsiorhvac.com
DIRECT-VENT SEALED COMBUSTION CONDENSING BOILER
HOT WATER MODEL LX-85A
GAS-FIRED BOILERS FOR NATURAL AND L.P. PROPANE GASES

TABLE OF CONTENTS

Dimensions, Rating and Orifice Sizes ..............................................2
Identification of Parts ........................................................................3
Installation Requirements .................................................................4
Contamination Prevention.................................................................5
Mounting the boiler on a wall............................................................6
Venting Application ...........................................................................6
Boiler Room Air Supply and Ventilation............................................6
Non-Direct Vent Installation ..............................................................6
Flue Gas Venting Requirements.......................................................7
Additional Installation Requirements for Massachusetts ..................7
Vent and Air Intake Material .............................................................8
PVC/CPVC Pipe General Assembly Method....................................8
Vent and Air Intake Restrictions .......................................................8
Sidewall Venting, Non-Direct Vent ..................................................10
Vent Termination Location and Clearance......................................10
Non-Direct Vent Vertical Venting .....................................................10
Direct Vent Installation ....................................................................10
Sidewall Venting, Direct Vent ..........................................................10
Vent/Air Intake Termination Installation...........................................16
Direct Vent, Venting and Air Intake through a Roof ........................17
Venting and Air Intake Regular Inspection .....................................18
Condensate Removal System ........................................................18
Gas Piping ......................................................................................18
Electrical Wiring ..............................................................................19
Wiring Diagram ...............................................................................20
Single and Multi Zoning ..................................................................22
Water Piping ...................................................................................24
Operating Instructions.....................................................................30
Boiler Control Display .....................................................................30
Boiler Control ..................................................................................30
Boiler Operating Status ..................................................................31
Viewing and changing temperature ................................................32
Viewing and changing system setting ............................................33
Initial start and operating instruction ..............................................35
Sequence of Operation...................................................................36
Combustion check and fuel input rate ............................................37
Safety Check .................................................................................37
Diagnostic error codes ...................................................................38
Care and Maintenance ...................................................................41
General Troubleshooting Guide ......................................................42
The venting system of this boiler is under positive pressure.
Leakage from this system can be hazardous and if not avoided
can result in death or serious injury. In addition to the recommen-
dations within this manual and the User's Information Manual, the
venting system, from the flue collector to the outdoor discharge,
must be carefully checked annually by a qualified service agency.
Heating Contractor
Address
Phone Number
Printed in U.S.A. 909
WARNING
Subject to change without notice.
This manual must be left with owner and should be
hung on or adjacent to the boiler for reference.
READ ALL OF THE FOLLOWING
WARNINGS AND STATEMENTS
BEFORE READING THE
INSTALLATION INSTRUCTIONS
WARNING
LIQUEFIED PETROLEUM (L.P.)
PROPANE GAS-FIRED BOILERS
Installation location ONLY as permitted in paragraph
entitled "LIQUEFIED PETROLEUM (L.P.) PROPANE
GAS-FIRED BOILER LOCATION" on page 5 of this
instruction book.
The above warning does not apply to NATURAL
gas fired boilers.
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-latest edition. The installation must also
conform to the additional requirements in this Slant/Fin
Instruction Book.
In addition where required by the authority having juris-
diction, the installation must conform to American
Society of Mechanical Engineers Safety Code for
Controls and Safety Devices for Automatically Fired
Boilers, No. CSD-1.
WARNING
This boiler, gas piping and accessories must be
installed, connected, serviced and repaired by a
trained, experienced service technician, familiar with all
precautions required for gas-fired equipment and
licensed or otherwise qualified, in compliance with the
authority having jurisdiction.
Boiler Model Number
Boiler Serial Number
Installation Date
Publication No. LXA-40 Rev.B
Part No. 84-5756000