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

Direct-vent sealed combustion condensing boiler
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See also: User's Information Manual , Installation & Operation
LYN X
DIRECT-VENT SEALED COMBUSTION CONDENSING BOILER
HOT WATER MODEL LX-85
GAS-FIRED BOILER FOR NATURAL AND L.P. PROPANE GASES
INSTALLATION AND OPERATING INSTRUCTIONS

TABLE OF CONTENTS

Dimensions, Rating and Orifice Sizes ........................................2
Identification of Parts ..................................................................3
Installation Requirements ...........................................................4
Contamination Prevention...........................................................5
Venting Application .....................................................................5
Boiler Room Air Supply and Ventilation......................................5
Flue gas Venting Requirements..................................................6
Vent Material ..............................................................................6
Air Intake Material ......................................................................6
Vent and Air Intake Restrictions .................................................7
Non-Direct Vent Installation ........................................................8
Sidewall Venting, Non-Direct Vent ..............................................8
Vent Termination Location and Clearance..................................8
Non-Direct Vent Vertical Venting .................................................8
Direct Vent Installation ................................................................8
Sidewall Venting, Direct Vent ......................................................8
Vent/Air Intake Termination Installation.....................................14
Venting and Air Intake Regular Inspection ...............................16
Condensate Removal System ..................................................16
Gas Piping ................................................................................16
Electrical Wiring ........................................................................17
Wiring Diagram .........................................................................18
Multi Zoning ..............................................................................20
Water Piping .............................................................................23
Operating Instructions...............................................................29
Boiler Control Display ...............................................................29
Boiler Control ............................................................................29
Sequence of Operation.............................................................35
Gas Input Rate Adjustment ......................................................36
Safety Check ...........................................................................38
Care and Maintenance .............................................................41
General Troubleshooting Guide ................................................42
Conversion to Propane .............................................................43
WARNING
The venting system of this boiler is under positive pres-
sure. Leakage from this system can be hazardous and if
not avoided can result in death or serious injury. In addi-
tion to the recommendations 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. 1008
This manual must be left with owner and should be hung
on or adjacent to the boiler for reference.
IMPORTANT
READ ALL OF THE FOLLOWING
WARNINGS AND STATEMENTS
BEFORE READING THE
INSTALLATION INSTRUCTIONS
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 4 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.
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
Part No. 84-5736 Publication No. LX-40 Rev. C
WARNING
WARNING

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Summary of Contents for Slant/Fin LYNX LX-85

  • Page 1: Table Of Contents

    National Fuel Gas Code, Wiring Diagram .................18 ANSI Z223.1-latest edition. The installation must also Multi Zoning ................20 Water Piping ................23 conform to the additional requirements in this Slant/Fin Operating Instructions...............29 Instruction Book. Boiler Control Display ...............29 Boiler Control ................29 Sequence of Operation.............35...

  • Page 2: Dimensions, Rating And Orifice Sizes

    Lynx Model LX-85 RATINGS AND DIMENSIONS 27 7/8 VENT CONNECTION WATER INLET (RETURN) - 1" NPT (MALE) 6 7/8 4 3/4 AIR INTAKE 8 5/8 1 1/2 WATER OUTLET (SUPPLY) - 1" NPT (MALE) CONNECTION 12 3/8 GAS SHUTOFF 2 5/8 VALVE 1/2"...

  • Page 3: Identification Of Parts

    Lynx Model LX-85 LOCATION AND IDENTIFICATION OF PARTS FIELD WIRING ENTRANCES FIELD WIRING TERMINALS SPARK ELECTRODE (IGNITOR) FLUE SENSOR WINDOW (SIGHT GLASS) WATER OUTLET (SUPPLY) GAS VALVE VENTURI WATER INLET (RETURN) HEAT EXCHANGER COMBUSTION FLUE COLLECTOR BLOWER BOILER DRAIN TOP (EXTERIOR) VALVE FRONT (INTERIOR) VENT CONNECTION...

  • Page 4: Installation Requirements

    MINIMUM ALCOVE AND CLOSET CLEARANCE For Combustible Recommended This installation must also conform to the additional require- Surface Construction for Service ments in this Slant/Fin Instruction Book. Front 6" 18" Rear 0" 0" NATURAL GAS-FIRED BOILER LOCATION Left Side 0"...

  • Page 5: Additional Installation Requirements For Massachusetts

    VENTING APPLICATION 2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon The Lynx LX-85 is a sealed combustion type boiler, it may be installed monoxide detector as required in accordance with the above provisions and vented either as a direct vent boiler which all air for combustion is shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

  • Page 6: Flue Gas Venting Requirements

    (by inserting the optional adapter - Openings must never be reduced or closed. If doors or specified in the Lynx LX-85 Parts List, publication # LX-10PL, for windows are used for air supply, they must be stainless steel venting).

  • Page 7: Vent And Air Intake Restrictions

    Lynx Model LX-85 PVC/CPVC PIPE GENERAL ASSEMBLY METHOD The following are the recommended methods for cutting, cleaning and connecting PVC and CPVC pipe, for both the vent and air intake piping system: 1. When laying out the piping system, work from the boiler vent and air intake adapter to the point of outside termination.

  • Page 8: Non-Direct Vent Installation

    Figures 7 and 8 show typical horizontal sidewall venting. For method of installation. Refer to the Slant/Fin Lynx LX-85 Parts combustible wall passage of vent piping, a UL listed thimble List (publication number LX-10PL) for the appropriate model for or flashing and sealing boot must be used, providing the wall the vent material to be used.
  • Page 9 Lynx Model LX-85 LYNX MODEL LX-85 NON-DIRECT VENT, SIDEWALL VENTING All joints must be liquid and pressure tight. Use 3” dia. PVC/CPVC schedule 40 pipe or U/L listed single wall 3" dia. AL29-4C S.S.*. venting materials (See page 6). SLOPE UP 1/4 IN. 6"...
  • Page 10 Lynx Model LX-85 LYNX MODEL LX-85 NON-DIRECT VENT, VENTING THROUGH A ROOF All joints must be liquid and pressure tight. Use 3” dia. PVC/CPVC schedule 40 pipe or U/L listed single wall 3" dia. AL29-4C S.S.*. venting materials (See page 6). 90°...
  • Page 11 Lynx Model LX-85 LYNX MODEL LX-85 NON - DIRECT VENT, UTILIZING AN EXISTING CHIMNEY AS A CHASE All joints must be liquid and pressure tight. Use 3” dia. PVC/CPVC schedule 40 pipe or U/L listed single wall 3" dia. AL29-4C S.S.*. venting materials (See page 6). 90°...
  • Page 12 All joints must be liquid and pressure tight. Use 3” dia. PVC/CPVC schedule 40 pipe or U/L listed single wall 3" dia. AL29-4C S.S.*. venting materials (See page 6). 3 - 16" THICK WALL 3" DIA PVC/CPVC PIPE FOR AIR INTAKE SLANT/FIN VENT/AIR INTAKE 90° ELBOW TERMINATION KIT PART # 84 0802 000 3" DIA PVC/CPVC PIPE FOR VENT 12"...
  • Page 13 Lynx Model LX-85 3" DIA PVC/CPVC 3" DIA PVC/CPVC 3" DIA PVC/CPVC PIPE FOR VENT PIPE FOR AIR INTAKE PIPE FOR VENT INSIDE TERMINATION PLATE INSIDE TERMINATION PLATE 3" DIA PVC/CPVC PIPE FOR AIR INTAKE SCREW FLUE WALL WALL (3"-16" THICK) (3"-16"...

  • Page 14: Vent/Air Intake Termination Installation

    Lynx Model LX-85 VENT/AIR INTAKE TERMINATION FOR PVC/CPVC VENT/AIR INTAKE TERMINATION FOR STAINLESS STEEL VENTING INSTALLATION VENTING INSTALLATION This termination is designed specifically for 3” diameter PVC or This termination is designed specifically for the 3” diameter CPVC Schedule 40 pipe to be used as the vent and air intake stainless steel venting systems approved to be used as the piping material, only.

  • Page 15: Direct Vent, Venting And Air Intake Through A Roof

    Lynx Model LX-85 B. DIRECT VENT - VENTING AND AIR INTAKE For PVC/CPVC pipe, follow the proper assembly practices THROUGH A ROOF specified on page 7, and venting system restrictions specified on page 7 of this manual. For stainless steel venting systems, follow the vent manufacturer’s instructions and the restrictions Figure 14 shows typical vertical venting.

  • Page 16: Venting And Air Intake Regular Inspection

    CONDENSATE REMOVAL SYSTEM The Lynx LX-85 is equipped with a built-in condensation drain B. The gas supply line to the boiler should run directly from the and trap. The trap must be filled with water. DO NOT operate the meter for natural gas or from the fuel tank for L.P.

  • Page 17: Electrical Wiring

    Lynx Model LX-85 At 30 ft. length of pipe, match required capacity from table on Boiler must be electrically grounded in accordance with the this page (choose higher capacity, in this case is 152 cu. ft. per requirements of the authority having jurisdiction, or, in the hour).

  • Page 18: Wiring Diagram

    Lynx Model LX-85 Figure 16a. Schematic wiring diagram.
  • Page 19 Lynx Model LX-85 Figure 16b. Boiler Control. Figure 16c. Ladder wiring diagram.

  • Page 20: Multi Zoning

    Lynx Model LX-85 ZONE 2 ZONE 3 ZONE 1 DISCONNECT THERMOSTAT THERMOSTAT THERMOSTAT SWITCH V8043E/F V8043E/F V8043E/F 120V/24V POWER SUPPLY, PROVIDE DISCONNECT TRANSFORMER MEANS AND OVERLOAD PROTECTION TH-TR MOTOR SWITCH MOTOR SWITCH MOTOR SWITCH TH-TR TH-TR AS REQUIRED. SPACE HEATING SYSTEM 1 2 3 4 5 6 7 8 FIELD WIRING...
  • Page 21 Lynx Model LX-85 ZONE 3 THERMOSTAT ZONE 2 ZONE 1 THERMOSTAT THERMOSTAT DISCONNECT SWITCH R882A/B R882A/B R882A/B 120V/60HZ 120V/24V TRANSFORMER CIRC. CIRC. CIRC. ZONE 2 ZONE 1 ZONE 3 POWER SUPPLY, PROVIDE DISCONNECT FIELD WIRING 1 2 3 4 5 6 7 8 MEANS AND OVERLOAD PROTECTION TERMINALS AS REQUIRED.
  • Page 22 Lynx Model LX-85 THERMOSTAT R845A RELAY DISCONNECT SWITCH CIRCULATOR POWER SUPPLY, PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 2 3 4 5 6 7 8 FIELD WIRING TERMINALS ON BOILER Figure 17d. Single zoning of Lynx boiler; pump zoning system using R845A rela y. DISCONNECT 120 V / 24 V THERMOSTAT...

  • Page 23: Water Piping

    Lynx Model LX-85 WATER PIPING 7. Water Treatment and Freeze Protection: A good water treatment program will not only extend the 1. Connection of system to boiler: useful life of this boiler but it will also save much of the time Primary/secondary piping of the system is recommended, to and expense of repairs made necessary by preventable ensure the proper flow through the boiler.
  • Page 24 Lynx Model LX-85 WATER OUTLET PIPING TO REST OF SYSTEM PROBE TYPE LOW WATER CUTOFF (IF REQUIRED) LOW WATER CUTOFF MANIFOLD (IF LWCO UTILIZED) PRESSURE RELIEF VALVE (SUPPLIED WITH BOILER) RELIEF VALVE DISCHARGE PIPING 3/4" NPT STREET ELBOW 1" x 1" x 3/4" TEE WATER OUTLET (SUPPLY) PIPE 1"...
  • Page 25 Lynx Model LX-85 LYNX LX-85 PRESSURE DROP FLOW RATE Boiler heat loss Feet w.c Head (feet w.c.) 0.75 Flow Rate (GPM) Figure 19. Boiler water side pressure drop Available Head Capability Left for Various Model Boiler Domestic Water Flow Temp...
  • Page 26 Lynx Model LX-85 ADDITIONAL ZONES SPACE HEAT ZONE #1 MAKE UP WATER SUPPLY HOT WATER OUTLET DOMESTIC HOT WATER TANK COLD INLET WATER *PIPING ORIENTATION FOR REFERENCE ONLY Figure 20. Zoning with circulators.
  • Page 27 Lynx Model LX-85 ADDITIONAL ZONES SPACE HEAT ZONE #1 MAKE UP WATER SUPPLY HOT WATER OUTLET DOMESTIC HOT WATER TANK COLD INLET WATER *PIPING ORIENTATION FOR REFERENCE ONLY Figure 21. Zoning with zone valves.
  • Page 28 Lynx Model LX-85 ADDITIONAL ZONES SPACE HEAT ZONE #1 WATER CHILLER UNIT MAKE UP WATER SUPPLY HOT WATER OUTLET DOMESTIC HOT WATER TANK COLD INLET WATER * PIPING ORIENTATION FOR REFERENCE ONLY Figure 22. Piping a heating-cooling system to the boiler and a c hiller.

  • Page 29: Operating Instructions

    Lynx Model LX-85 OPERATING INSTRUCTIONS 3. While “t” is blinking, DHW tank temperature may be set to desired temperature (if tank is equipped with I. FILLING AND VENTING WATER SYSTEMS sensor). The setting range is between 104˚ to 185˚F. 4. View actual boiler supply & return water tempera- A.
  • Page 30 Lynx Model LX-85 "TEMPERATURE" DISPLAY (3 DIGITS) "MODE" DISPLAY "UP" PUSH BUTTON "DOWN" PUSH BUTTON "RESET" PUSH BUTTON "ENTER" PUSH BUTTON "BURNER STATUS" "SELECT" PUSH BUTTON STEADY DOT = BURNER ON BLINKING DOT = BURNER OFF Figure 23. Display Board Table 3 LYNX BOILER DISPLAY BOARD “Boiler Operation Status”...
  • Page 31 Lynx Model LX-85 Table 4 VIEWING AND CHANGING TEMPERATURES Press “SELECT” button for viewing different modes on “MODE DISPLAY” MODE DESCRIPTION & TEMPERATURE DISPLAY DISPLAY Space heating supply water temperature could be changed by pressing “Up/Down” button. Settable from 90˚F to 185˚F (steps of 1 F).
  • Page 32 Lynx Model LX-85 VIEWING AND CHANGING SYSTEM SETTING - Table 5 “To change system setting or perform system test” The menu is accessed by pressing and holding “SELECT” and “ENTER” buttons for 10 seconds. To change system setting: Press “UP or DOWN” button, then press “ENTER” WARNING: Only a trained, experienced service technician or installer should use this table.
  • Page 33 Lynx Model LX-85 Maximum water target temp. 185 ° F Water Supply Target Temp. (° F) Minimum water target temp. Water reference temp. (default of 86°F) 68°F Outdoor Temp. (°F) Figure 24. Space Heating mode with outside sensor water set point graph.
  • Page 34 Force or attempted repair may result in a fire or explosion. Lynx LX-85 boiler under the ANSI Z21.13 - latest edition. D. DO NOT use this appliance if any part has been under Instructions water.

  • Page 35: Sequence Of Operation

    Lynx Model LX-85 LYNX BOILER MODEL LX-85 SEQUENCE OF OPERATION THERMOSTAT CALLS FOR HEAT CIRCULATOR(S) ON COMBUSTION BLOWER ON (AT MEDIUM SPEED) CONTROL LOCKOUT BLOWER SPEED CONFIRMED? DISPLAY SHOWS ERROR “A 33” 5 SECOND PRE-PURGE PERIOD CONTROL LOCKOUT DISPLAY SHOWS ERROR “A 01”...

  • Page 36: Gas Input Rate Adjustment

    Lynx Model LX-85 IV. CHECK COMBUSTION AND FUEL INPUT RATE If the fuel input is not at the rate specified on page 2 at the maximum firing rate, then the blower speed should be adjusted to attain the specified input rate. A.
  • Page 37 Lynx Model LX-85 SCREWS TOP COVER LATCH FRONT COVER HEAT EXCHANGER ENCLOSURE FRONT COVER Figure 26b. Lift control panel. Figure 26a. Remove jacket top and front covers. CONTROL PANEL HINGE PIVOT Figure 26c. Remove heat exchanger enclosure front cover. COMBUSTION BLOWER OFFSET ADJUSTMENT...

  • Page 38: Safety Check

    Lynx Model LX-85 V. SAFETY CHECK C. Control Safety Shutdown test: With the burner firing, disconnect the spark cable from the A. Check for gas leaks: spark ignitor. Gas valve should close and burner should Using soap solution, check for gas leaks from meter to gas stop firing.
  • Page 39 Lynx Model LX-85 B. BLOCKING ERRORS: Indicated by an “E” in the mode display. Operation is automatically restored, once the condition returns to normal or is fixed. The temperature display shows the error code. Pressing the “Reset” button is not required. ERROR CODE INDICATION REMEDY...
  • Page 40 Lynx Model LX-85 continued from page 39 ERROR CODE INDICATION REMEDY Check flue gas temperature, at the maximum firing rate and high water temperature. If the flue gas temperature reaches 212˚F, check the fuel input Excess Flue Temperature rate and combustion. Check the condition of the heat exchanger.

  • Page 41: Care And Maintenance

    All other control and parts required. Air needs are greatest in cold weather if boiler should be identified by and ordered from Slant/Fin. Relief/Safety installation is non-direct vent method. Air vents must open and valves must be ASME rater for the pressure and gross output of free of obstruction.

  • Page 42: General Troubleshooting Guide

    Lynx Model LX-85 GENERAL TROUBLESHOOTING GUIDE FOR SERVICE PERSONNEL WARNING: Only a trained, experienced service technician should perform troubleshooting. Turn off all electrical power to the boiler before servicing. A. BURNER FAILS TO OPERATE - NO HEAT CAUSE REMEDY 1. No power, display off, power switch off. Main electric 1.

  • Page 43: Conversion To Propane

    Lynx Model LX-85 VENTURI GASKET COMBUSTION BLOWER GAS VALVE CABLE SCREWS VENTURI SCREW GAS PIPE PROPANE ORIFICE WARNING: RUBBER GROMMET Only a trained, experienced Service DISCONNECT GAS PIPE DISCONNECT GAS VALVE CABLE Technician or Installer should per- GAS VALVE form the conversion procedure. Figure 27.
  • Page 44 SLANT/FIN CORPORATION, Greenvale, N.Y. 11548 • Phone: (516) 484-2600 FAX: (516) 484-5921 • Canada: Slant/Fin , Mississauga, Ontario LTD/LTEE www.slantfin.com ©Slant/Fin Corp. 2007.

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