IBC Technologies SL 30-175 Installation And Operating Istructions
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IBC Technologies SL 30-175 Installation And Operating Istructions

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SL 30-175, SL 45-260
Modulating gas Boilers
WARNING: If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury, or loss of life.
Do not store or use gasoline or other flammable vapours and liquids or other
combustible materials in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a nearby phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
this Manual is also available in French - contact iBC or visit our web site www.ibcboiler.com
(Natural Gas or Propane)
www.ibcboiler.com

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  • Page 1 SL 30-175, SL 45-260 Modulating gas Boilers (Natural Gas or Propane) WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. Do not store or use gasoline or other flammable vapours and liquids or other combustible materials in the vicinity of this or any other appliance.

  • Page 2: Safety Considerations

    6 x 1/4” x 2 1/2” Lag screws/w flat washers enhanced efficiency, longevity • and proper operation of your 1 x natural gas to Propane conversion Kit - iBC Part #168a (sl 30-175) boiler. • 1 x natural gas to Propane conversion Kit - iBC Part #170a (sl 45-260)

  • Page 3: Table Of Contents

    SL 30-175, SL 45-260 MODULATING GAS BOILERS CONTENTS INSTALLATION........... . 1-1 general .
  • Page 4 SL 30-175, SL 45-260 MODULATING GAS BOILERS The Installer must carefully read this manual to ensure that all installation DANGER details can be adhered to. Special attention is to be paid to clearances and access, vent travel and termination, gas supply, condensate removal and Should overheating occur combustion air supply.

  • Page 5: Installation

    SL 30-175, SL 45-260 MODULATING GAS BOILERS INSTALLATION general SL 30-175 and SL 45-260 gas-fired modulating boilers are low pressure, fully condensing units having a variable input range from 30 MBH to 175 MBH, and 45 MBH to 260 MBH respectively (0 to 8,000’). the boilers are approved as “Category iV” vented appliances using either direct Vent (sealed combustion) or indoor combustion air, providing a great degree of installation flexibility.

  • Page 6: Code Requirements

    SL 30-175, SL 45-260 MODULATING GAS BOILERS Code reQuireMents The SL 30-175 and SL 45-260 boilers were tested to and certified under CSA 4.9- 2010 / ansi Z21.13-2010. installation must conform to local codes, or in the absence of these, with the latest editions of Can/Cga B149 and the Canadian electrical Code Part 1 Csa C22.2 no.

  • Page 7: Exhaust Venting And Air Intake

    SL 30-175, SL 45-260 MODULATING GAS BOILERS contaminants; combustion air should be drawn from a CLEAN source (e.g. outdoors) and the boiler should be isolated from interior dust sources. Do not seal boiler case openings directly when firing - allow for air circulation and ventilation in the immediate area.
  • Page 8 SL 30-175, SL 45-260 MODULATING GAS BOILERS all venting must be installed in accordance with the requirements of the WARNING jurisdiction having authority: in Canada, Part 8, Venting Systems of the B149.1- 10 Code and any other local building codes are to be followed. in the usa, Venting, condensate the national Fuel gas Code, ansi 223.1, latest edition, prevails.
  • Page 9 SL 30-175, SL 45-260 MODULATING GAS BOILERS • Place in operation the appliance being inspected. Follow the lighting instructions. adjust thermostat so appliance will operate continuously. • after it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-burning appliance to their previous conditions of use.
  • Page 10 3" PPs (rigid single Wall) or CPVC ulC-s636 approved piping is the standard venting option; with this, the sl 30-175 and sl 45-260 boilers can be sited up to 200 equivalent feet from the vent termination. the actual vent travel allowance is reduced for fittings in accordance with Table 3.
  • Page 11 SL 30-175, SL 45-260 MODULATING GAS BOILERS runs back towards the trap. support should be provided for intake and vent piping, particularly so for horizontal runs (follow local code). You may have to insulate exhaust piping where it passes through unheated spaces or underground, with appropriate pipe insulation to prevent freezing of condensates.
  • Page 12 SL 30-175, SL 45-260 MODULATING GAS BOILERS • Optional bird screen may be placed in a termination fitting. Leave unglued, and hold in place with a short nipple. this permits easy access for cleaning. • For roof top venting of multiple boiler sets, group all intake terminals together for a common penetration through a custom cap. alternatively, place in the closest proximity achievable using commonly available pipe flashing. Similarly...
  • Page 13 SL 30-175, SL 45-260 MODULATING GAS BOILERS • use a 45° elbow on the exhaust termination to launch the plume up and off the sidewall, for protection of wall. • Bird screen of 1/4" stainless steel or plastic mesh (iPeX system 636 drain grate) is useful to guard against foreign objects.
  • Page 14 SL 30-175, SL 45-260 MODULATING GAS BOILERS or paved driveway that is located between two single family dwellings and WARNING serves both dwellings • In areas of high snowfall, Clearance under veranda, porch, deck or balcony: - 12" (0.3m) IBC strongly Users must be advised to recommends a minimum of 48”...
  • Page 15 SL 30-175, SL 45-260 MODULATING GAS BOILERS 1.4.7 “Direct vent” Combustion Air Intake Piping WARNING there are two basic methods of supplying combustion air to an iBC boiler. In addition to preventing the direct vent option uses piping from the outside to supply combustion air ingestion of chemical directly to the boiler’s combustion air connection.

  • Page 16: Closet Installations

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 1.4.8 “Indoor Air” Combustion Air Intake an “indoor Combustion air installation”, as described herein, is one in which air WARNING for combustion is taken from the ambient air around the boiler. When using Indoor...

  • Page 17: Condensate Removal

    SL 30-175, SL 45-260 MODULATING GAS BOILERS Condensate reMoVal IBC’s specified vent configuration promotes the safe drainage of moisture from WARNING the boiler and exhaust venting without flowing liquids back through the heat exchanger (as done by some other condensing boilers). Fill trap with water before reliable system operation requires (1) proper design and installation of exhaust boiler is first fired to prevent venting to allow condensate to run back to the drain/trap;...
  • Page 18 SL 30-175, SL 45-260 MODULATING GAS BOILERS 1.5.3 Condensate Trap Assembly - cleaning procedure turn off the power to the boiler and allow it to cool down. remove the trap from the boiler (reverse the installation procedure above). NOTE remove the trap Cleanout...
  • Page 19 SL 30-175, SL 45-260 MODULATING GAS BOILERS FLUE GAS EXHAUST WARNING - “Risk CONDENSATE AND of damage to RAIN WATER appliance” FLOWS BACK FROM VENTING SYSTEM Ensure rainwater is prevented from CONDENSATE DRAINAGE entering air intake piping. Free flow of condensate from...

  • Page 20: Water Piping

    SL 30-175, SL 45-260 MODULATING GAS BOILERS Water PiPing 1.6.1 General Piping Issues WARNING the sl modulating series boilers are designed for use within a closed loop, During operation, the relief forced circulation, low pressure system. a 30 psi pressure relief valve (3/4" nPt) valve may discharge large is supplied for field installation in the relief valve fitting on top of the boiler. An...
  • Page 21 For best results, use a Primary: Secondary piping system, with a pumped system, to reduce risk of boiler loop using 1 1/2" piping for the either the sl 30-175 or sl 45-260. Heat water escapement. exchanger head is only 2’ at 6 gpm and approx. 13' at 25 gpm.
  • Page 22 SL 30-175, SL 45-260 MODULATING GAS BOILERS ensure the pump is rated for the design circulating water temperatures; some WARNING pumps have a minimum water temperature rating above the low temperature potential of the boiler. Following installation, confirm actual performance by Water quality has a significant measuring Δ°T (under high and low flow conditions) after establishing the correct impact on the lifetime and firing rate.
  • Page 23 SL 30-175, SL 45-260 MODULATING GAS BOILERS PRIMARY / SECONDARY PIPING - bENEFITS AND INSTALLATION RULES Good circulating water flow through the boiler irrespective of load or radiation system head Allows flexible ΔT° control in secondary loops adds to the system’s thermal buffering, to assist in handling small loads and temperature transition. A Primary / Secondary piping configuration requires an extra pump, independant from any secondary load pumps. the sl series modulating boilers’ controller hosts wiring terminals and integral relays to simplify installation and operation of this preferred layout, offsetting such costs.
  • Page 24 SL 30-175, SL 45-260 MODULATING GAS BOILERS zone space heating conditions, a pressure activated bypass or other means of NOTE bypass must be used on any load where the flow rate might drop below minimum requirements (6 usgpm). The piping drawings in this manual are simple schematic guides to a successful PARALLEL PIPING CONCEPT installation.
  • Page 25 WITH ISOLATION will energize an internal relay BY IBC VALVE OPTIONAL LOW WATER CUT-OFF THE IBC SL 30-175 or SL 45-260 CAN to operate the air handler BE ORDERED WITH AN INTERNAL circulator and its fan on FACTORY SUPPLIED AND...

  • Page 26: Gas Piping

    SL 30-175, SL 45-260 MODULATING GAS BOILERS gas PiPing the sl 30-175 and sl 45-260 boilers require an inlet gas pressure of at least NOTE 5.0" w.c. for natural gas or propane, ensuring 4” at the gas valve at high fire. For either fuel, the inlet pressure shall be no greater than 14.0" w.c. Confirm this Due to the precision of pressure range is available with your local gas supplier. the inlet gas connection modern modulating boilers of the boiler is 3/4"...

  • Page 27: Electrical Connections

    SL 30-175, SL 45-260 MODULATING GAS BOILERS eleCtriCal ConneCtions all electrical wiring to the boiler (including grounding) must conform to local electrical codes and/or national electrical Code, ans/nFPa no. 70 – latest edition, or the Canadian electrical Code, C22.1 - Part 1.
  • Page 28 SL 30-175, SL 45-260 MODULATING GAS BOILERS 1.8.3 Zone valve Hook-up NOTE if zone valves rather than pumps are used to manage multiple heating loads, then The IBC boiler (like any 24VaC for the zone valves should be provided to the power contacts on the Pump/ modern appliance that Zone Valve terminal Block.

  • Page 29: Thermostat Heat Anticipator

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 1.8.6 Thermostat Heat Anticipator iBC “therm.” contacts draw no power, so an anticipator setting for the thermostat is not applicable with the sl modulating series boilers. in the case of a single temperature / heat load where zone valves are used to manage individual thermostatically controlled zones, each room thermostat’s heat anticipator should...
  • Page 30 SL 30-175, SL 45-260 MODULATING GAS BOILERS THIS PAGE INTENTIONALLY LEFT bLANK 1-26 INSTALLATION AND OPERATION INSTRUCTIONS...

  • Page 31: Boiler Systems And Operation

    SL 30-175, SL 45-260 MODULATING GAS BOILERS bOILER SYSTEMS AND OPERATION 2.1 general the sl 30-175 and sl 45-260 modulating boilers are designed to service larger WARNING residential, light-to-medium commercial space and domestic water heating loads. external load controls can be added to provide remote/active mixing as required.

  • Page 32: Access Levels

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 2.3.2 LCD Display Upon power-up, the LCD screen initially flashes a software release number then switches to a Standby- display mode, showing real time data plus key temperature target settings. When there is a call for heat from any load, that load is identified at the Status line (e.g. Heating – BBd - for baseboards with reset - in place of Standby). the target temperature for the relevant load is conspicuously displayed while that load is being handled.

  • Page 33: Advanced Setup

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 2.4.1 User setup the occupant has access to a number of practical settings. the most meaningful include adjustment of the indoor temperature target plus the temperature setback and occupied / unoccupied modes. the user Menu also provides access to the time & date fields, provides the means to toggle between C° / F° plus allows...

  • Page 34: Sequence Of Operation

    SL 30-175, SL 45-260 MODULATING GAS BOILERS seQuenCe oF oPeration the control module has 5 cycles during normal operation, as well as an error mode for problem detection: standby cycle Purging ignition cycle Heating cycle Circulating cycle error mode Each state is explained below. A flow chart for the sequence of operation can be found in the back of the manual.
  • Page 35 SL 30-175, SL 45-260 MODULATING GAS BOILERS the pump remains on for 5 minutes (adjustable) after the heating cycle ends. if the heating cycle ends as a result of water temperature exceeding the load specific band limit, the postpurge will continue as normal, but the boiler will enter the circulating mode.

  • Page 36: Other Operating Features

    SL 30-175, SL 45-260 MODULATING GAS BOILERS the pump remains on until the loop drops ½ the differential below the new load WARNING target temperature. note: if there is no place to sink heat during such Circ. mode, This boiler is equipped with this phase will continue indefinitely, affecting heat delivery.
  • Page 37 SL 30-175, SL 45-260 MODULATING GAS BOILERS initial cycle, the clashing loads will switch back and forth after further 10 min. intervals pending satisfaction of one or both loads. to cause repeated unequal run times (for example, constant 35 vs 5 min. runs) it is necessary to integrate an external load removing relay or timer on one of the heat calls (contact the Factory for details).
  • Page 38 SL 30-175, SL 45-260 MODULATING GAS BOILERS the boiler to fire using onward leads to the boiler’s dry contacts (use one of the pairs marked “therm 1, 2 or 3” on the sensor Block terminal strip. gang such leads in parallel from multiple zone valves for single connection to the boiler. note that typical room thermostats simply provide a call for heat, they do not control the circulating water temperature from the boiler in an open loop reset system.
  • Page 39 SL 30-175, SL 45-260 MODULATING GAS BOILERS 2.6.6 Unoccupied Mode users can further reduce energy consumption by switching the boiler to the unoccupied mode during holidays or other away periods. While in the unoccupied mode, the dHW load is turned off, while space Heating loads for which outdoor reset is activated will drop both the circulating water and the indoor setpoint temperature parameters to 50°F.

  • Page 40: Set Up & Load Definition

    SL 30-175, SL 45-260 MODULATING GAS BOILERS set uP & load deFinition after the boiler is powered up, the installer can use the keypad and display to characterize the application, as follows: in the Standby mode, start by pressing any key to call up the Main Menu.
  • Page 41 SL 30-175, SL 45-260 MODULATING GAS BOILERS use the Summer Shutdown field to enter a threshold temperature for the avoidance of heating during warmer times. this is typically set at 60° to 65°F so as to eliminate excessive boiler cycling in marginal heating conditions. use the Minimum Temp. field to optimize boiler run times on low mass loads.
  • Page 42 SL 30-175, SL 45-260 MODULATING GAS BOILERS if desired, use load Pairing option to allow two loads of compatible temperature demands to run at the same time. Consult iBC technical note: Load Pairing. upon completion of the input of load parameters, use the left button to step back through the menu system to return to the operating status screen.

  • Page 43: Startup And Commissioning

    SL 30-175, SL 45-260 MODULATING GAS BOILERS STARTUP AND COMMISSIONING 3.1 ligHting and sHutting doWn tHe Boiler FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fi re or explosion may result causing property damage, personal injury or loss of life A.

  • Page 44: Prior To Start-Up

    CoMMissioning the sl 30-175 and sl 45-260 modulating boilers are factory calibrated to operate with natural gas (or propane if so ordered) at sea level. the Zero-offset valve adjustment cap has been factory sealed using red paint-seal compound.
  • Page 45 SL 30-175, SL 45-260 MODULATING GAS BOILERS Allow the boiler to ignite. Run against a large load, to maintain high fire. DANGER With a combustion analyzer probe in the flue gas test port, turn the Gas:Air Making adjustments to ratio adjustment screw (see Figure 32, “B”) to achieve 25% excess air (see the IBC gas valve without table 8 below for corresponding Co values - set for Co target at high fire).

  • Page 46: Fuel Conversion

    Kit instruction sheet. • For the sl 30-175 natural gas to Propane conversion Kit - iBC Part #168a • For the sl 30-175 Propane to natural gas conversion Kit - iBC Part #169a •...
  • Page 47 SL 30-175, SL 45-260 MODULATING GAS BOILERS Remove three venturi mounting screws Separate gas valve from venturi PART NUMbER DESCRIPTION 180-042 gas ValVe groMMet - eQuiPPed WitH gas ValVe 180-044 or 180-046 Brass oriFiCe - For PorPane onlY 151-003 sCreWs - eQuiPPed WitH gas ValVe...
  • Page 48 SL 30-175, SL 45-260 MODULATING GAS BOILERS 3.5.1 Gaining access to combustion chamber, burner NOTE removal instructions The safety warning regarding remove fan and gas valve assembly. see “Fan and gas valve removal burner refractory on page instructions” on page 4-6 of this manual.

  • Page 49: Maintenance

    SL 30-175, SL 45-260 MODULATING GAS BOILERS MAINTENANCE Boiler MaintenanCe 4.1.1 General Care CAUTION • Keep combustible materials and flammable liquids and vapours away from the The owner is responsible for boiler. general care of the boiler. • Keep vent terminals clear of obstructions (snow, dirt, etc.). Improper maintenance of the boiler may result in a hazardous condition.
  • Page 50 SL 30-175, SL 45-260 MODULATING GAS BOILERS 4.1.6 Heat Exchanger WARNING during annual inspection (with the burner removed), examine the heat exchanger for signs of contamination and clean if neccessary. in areas of poor gas quality, there may be a buildup of black plaque (typically sulfur). other fouling agents: The IBC heat exchanger has a airborne dust, debris and volatiles.

  • Page 51: Boiler Treatment

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 4.1.12 boiler Treatment WARNING • Check consistency of any boiler treatment used, for appropriate mixture. Do not use automotive-type Chemical inhibitors are consumed over time, lowering their density. ethylene or other types of •...

  • Page 52: Geography & Components

    SL 30-175, SL 45-260 MODULATING GAS BOILERS geograPHY & CoMPonents Remove top cover button machine screws Gas Inlet Block (air intake snorkle removed for clarity) Turn cover button Counter Clock Wise to loosen Lift top cover up at front Gas Valve...
  • Page 53 SL 30-175, SL 45-260 MODULATING GAS BOILERS Fan Flange Bolts Air intake snorkel inlet from cabinet (behind the vent stack) Ignitor Cable connected to Ignitor Fan Gasket Transformer (underneath LWCO chamber) Air intake stack outlet to cabinet Combustion chamber Lid Bolts (8 bolts)
  • Page 54 SL 30-175, SL 45-260 MODULATING GAS BOILERS 4.2.1 Fan and gas valve removal instructions turn off electric power at the disconnect switch, and gas supply at the gas control valve to the boiler. ensure boiler cools down to ambient temperature. do not drain the boiler unless freezing conditions are expected during this procedure.

  • Page 55: Troubleshooting

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 5.0 TROUbLESHOOTING the troubleshooting section is divided into 3 sections: 5.1 Preliminary Checks 5.2 Electronic Components 5.3 Troubleshooting Guide Often, a problem can be identified and solved through simple checks of the basics: confirming the electrical power supply, gas flow and resetting the thermostat control. to extend the cover of such preliminary checks, the boiler’s control module offers a clear visual display of the status of the various control circuit components.

  • Page 56: Electronic Components

    SL 30-175, SL 45-260 MODULATING GAS BOILERS eleCtroniC CoMPonents this section details the method for troubleshooting the non-standard electronic components on the boiler including the electronic differential air pressure sensor and the temperature sensors. 5.2.1 Temperature Sensors the resistance of the temperature sensors varies inversely with temperature. to...
  • Page 57 SL 30-175, SL 45-260 MODULATING GAS BOILERS 5.2.2 Fan/blower operating power is provided by means of a separate 120 VaC connector at the bottom of the fan (white/black/green). Control of the fan is provided via a four lead connector at the top of the fan. this connector feeds a PWM control signal (black wire) from the controller and provides a tachometer signal (white wire) back from the fan.

  • Page 58: Water Pressure Sensor

    SL 30-175, SL 45-260 MODULATING GAS BOILERS Next, confirm that the circuit is properly powered. The supply voltage to the sensor should be 13.8 VdC; to check, the simplest technique is to measure the circuit on the face of the controller circuit board (vs. an attempt to splice into the harness / connectors). see previous page for a presentation of the measurement points.
  • Page 59 SL 30-175, SL 45-260 MODULATING GAS BOILERS 5.2.8 Optional Low Water Cut Off Kit A UL 353 certified probe-type low water cut off device can be ordered Factory installed, or a LWCO retrofit kit (IBC Part #P-156A) can be ordered for a retrofit. the lWCo has test and reset buttons, located inside the case near the base of the rating Plate. the lWCo will reset upon power up of the boiler and return the device to its state at the time of any power cut.

  • Page 60: Troubleshooting Guide

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 5.3 trouBlesHooting guide 5.3.1 Using Control Module Errors Displayed SYMPTOM DIAGNOSIS REMEDY AIRFLOW ERROR Check fan operation • Check lead is attached at fan. • Cycle power off/on; listen for fan initialization. LCD Screen Message: if no action, focus your attention on the fan itself.
  • Page 61 SL 30-175, SL 45-260 MODULATING GAS BOILERS SYMPTOM DIAGNOSIS REMEDY MAxIMUM IGNITION TRIALS No spark when Check that igniter lead is secure at the control ERROR igniting. Igniter module and at the probe. probe/flame sensor LCD Screen Message: disconnected. Error – Ignition Failure after 3 Manual gas shutoff is Check for gas flow. Open manual gas shutoff...
  • Page 62 SL 30-175, SL 45-260 MODULATING GAS BOILERS SYMPTOM DIAGNOSIS REMEDY HI LIMIT ERROR If equipped with a Low Red light on Water Cut Off, check Water level oK - check manual reset water high LCD Screen Message: for illuminated red...

  • Page 63: Ignition Problems

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 5.3.2 Ignition Problems SYMPTOM DIAGNOSIS REMEDY NOISY SPARK WHEN Ignition lead is not reconnect ignition lead. IGNITING firmly connected. Contaminants/ ensure probe is dry by re-running post-purge; moisture on igniter otherwise, clean or replace igniter probe.
  • Page 64 SL 30-175, SL 45-260 MODULATING GAS BOILERS 5.3.3 Cycling Problems SYMPTOM DIAGNOSIS REMEDY Improper values Check load maximum temps are above target RAPID CYCLING entered via keypad. temps, by 1/2 of the selected boiler differential. ensure boiler differential is oK (16-30°F is...
  • Page 65 SL 30-175, SL 45-260 MODULATING GAS BOILERS 5.3.4 Temperature Problems SYMPTOM DIAGNOSIS REMEDY INSUFFICIENT HEAT Operating increase temperature target. see Section 2.7 temperature too low. Priority parameters Review load configuration parameters. See or load configuration Section 2.7 improperly set up. Unit undersized. refer to load Calculation vs. Boiler output.
  • Page 66 SL 30-175, SL 45-260 MODULATING GAS BOILERS 5.3.5 Miscellaneous SYMPTOM DIAGNOSIS REMEDY FUMES AND HIGH HUMIDITY Improperly installed refer to installation/operation instructions condensate trap Leak in vent piping inspect using soap solution Flue gas leak within Visually inspect all mechanical connections...

  • Page 67: Diagrams

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 6.0 DIAGRAMS 6.1 - Parts diagraMs 6.2 - Wiring diagraMs 6.3 - seQuenCe oF oPeration DIAGRAMS...

  • Page 68: Parts Diagrams

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 6.1 Parts diagraMs SL 30-175 & SL 45-260 Modulating Boilers - Parts assembly Diagram 6.1-1: Boiler assembly parts INSTALLATION AND OPERATION INSTRUCTIONS...
  • Page 69 SL 30-175, SL 45-260 MODULATING GAS BOILERS Diagram 6.1-2: Boiler assembly parts list (refer to Diagram 6.1-1 on opposite page) DIAGRAMS...

  • Page 70: Wiring Diagrams

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 6.2 Wiring diagraMs ELECTRICAL LADDER DIAGRAM SL 20-115, 30-175, 45-260 120Vac IBC Control Board Green White Black White Yellow CB-1 Fuse - 5A Boiler Pump Fuse - 5A CB-2 P/ V1 - L...
  • Page 71 SL 30-175, SL 45-260 MODULATING GAS BOILERS ELECTRICAL LADDER DIAGRAM SL 20-115, 30-175, 45-260 Sensor terminal blocks, multiple boiler inter-wiring detail Interlock 1 Auxiliary Interlock (L.W.C.O., Air Proving, etc.) - Jumper if not used Interlock 1 Interlock 2 Auxiliary Interlock (L.W.C.O., Air Proving, etc.) - Jumper if not used...

  • Page 72: Internal Wiring Diagram

    SL 30-175, SL 45-260 MODULATING GAS BOILERS SL 30-175, 45-260 INTERNAL WIRING DIAGRAM NRG 137 brown Combustion VALVE blue P 101 blue 5 x plug blue blue VALVE blue brown VALVE green orange orange green (BURNER) orange blue Transformer P 102...

  • Page 73: Sequence Of Operations

    SL 30-175, SL 45-260 MODULATING GAS BOILERS 6.3 seQuenCe oF oPeration Diagram 6.3: Sequence of operation diagram DIAGRAMS...
  • Page 74 installation & CoMMissioning rePort boiler Details: Model Number _____________________ Serial Number ______________________________________________ Date of Installation ______________ Address of installation __________________________________________ _____________________________________________________________________________________________ User contact information _______________________________________________________________________ Installer Information Company ___________________________________________________________________ address ______________________________________________________________________________________ Phone/Fax/e mail ______________________________________________________________________________ Fuel natural gas Propane Gas Supply Pressure (high fire) _______ inches w.c. Measured Rate of Input (high fire) ____________ Btu/hr installation instructions have been followed and completed (section 1 of installation and operating instructions).

  • Page 75: Service Record

    installer set-uP Load Definition - Load #1 _______________________________________________________________________ Load Configuration - Load #1 _____________________________________________________________________________________________ Load Definition - Load #2 _______________________________________________________________________ Load Configuration - Load #2 _____________________________________________________________________________________________ Load Definition - Load #3 _______________________________________________________________________ Load Configuration - Load #3 _____________________________________________________________________________________________ serViCe reCord DATE LICENSED CONTRACTOR DESCRIPTION OF WORK DONE...
  • Page 76 notes...
  • Page 77 as referenced on page 2-7 of this manual, the following message is relevant to users in the usa: IMPORTANT this Boiler is equipped with a feature that saves energy by reducing the boiler water temperature as the heating load decreases. this feature is equipped with an override which is provided primarily to permit the use of an external energy management system that serves the same function.
  • Page 78 IbC Technologies Inc. 1445 Charles street, Vancouver, BC Canada V5l 2s7 tel: 604.877.0277 Fax: 604.877.0295 www.ibcboiler.com 120-156A-R2 september 2012...

This manual is also suitable for:

Sl 45-260

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