IBC VFC 15-150 Manual
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IBC VFC 15-150 Manual

Modulating gas boilers natural gas or propane
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VFC 15-150 - VFC 45-225
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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Summary of Contents for IBC VFC 15-150

  • Page 1 • 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 www.ibcboiler.com...

  • Page 2: Safety Considerations

    * boilers are shipped with 30 psig pressure relief valve - up to 75 psig relief valve can be ordered NOTE Supplied with the boiler - the iBC boiler is shipped with an accessory parts kit Points out installation, consisting of the following items:...

  • Page 3: Table Of Contents

    VFC 45-225 Parts diagraMs ........6-2 VFC 15-150 Parts diagraMs ........6-4 additional Parts diagraMs .
  • Page 4 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS The Installer must carefully read this manual to ensure that all installation details can be adhered to. Special attention is to be paid to clearances and access, vent travel and termination, gas supply, condensate removal and combustion air supply.

  • Page 5: Installation

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS INSTALLATION general VFC gas-fired modulating boilers are low pressure, fully condensing units having variable input ranges (a) 15 MBH (15,000 Btu/hr) to 150 MBH (15-150 model, 0 to 8,000’) and (b) 45 MBH to 225 MBH (45-225 model, 0 to 8,000’). the boilers are approved as “Category iV”...

  • Page 6: Code Requirements

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Code reQuireMents The VFC 15-150 model was tested to and certified under CSA 4.9-2000 / ANSI Z21.13-2000. the larger VFC 45-225 unit was approved under Csa 4.9a-2005 / anZi Z21.13a-2005. 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

    VFC 15-150 - VFC 45-225 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 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS • seal any unused opening in the common venting system. • Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.
  • Page 9 90° elbow adaptor. a condensate trap formed using the supplied fittings shall be considered part of the exhaust and installed near the base of the boiler (see Figure 2). • for PPs, use iBC’s VFC PPs transition kit as appropriate for the chosen PPs DANGER system: Failure to install PPs adaptor CENTROTHERM INNOFLUE™...
  • Page 10 - see Section 1.4.8. VFC 15-150: when using the 3” venting option a 3" x 2" reducer must be placed in a vertical section of the flue gas vent (within 3' of the boiler), to avoid pooling of condensate.
  • Page 11 3" x 3/4" (or 2-1/2" x 3/4") reducing tee would replace the 2" tee and 2" x 3/4" bushing supplied with the VFC 15-150 boiler. exhaust venting must slope down to the trap/drain with a pitch of at least 1/4" per foot (PPs vent: follow PPs manufacturer requirements for slope) so condensate runs towards the trap.
  • Page 12 (the closest intake and exhaust pipes shall be 36" - or more - apart). can be as low as 3.0 use the same 24" (minimum) vertical separation for all termination options. For alternate group terminations, contact the iBC Factory for written guidance. • DO NOT exhaust vent into a common venting system.
  • Page 13 VFC 15-150 - VFC 45-225 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 is useful to guard against foreign objects.
  • Page 14 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Vent terminal clearance minimums are as follows: • Clearance above grade, veranda, porch, deck or balcony – 12" (0.3m), but check local code also (anticipated snow levels may supersede). • Clearance to openable window or door – 36" (0.91m) (usa – 12”) •...
  • Page 15 Further vent allowance is available for 3” Rigid Single Wall PPs as follows: VFC 15-150: up to 30’ equivalent; VFC 45-225: up to 60’ equivalent. For the inlet air – schedule 40 PVC, aBs, or PPs piping of any type is permitted.
  • Page 16 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Combustion air piping is connected at the base of the boiler using a standard 2” PVC (aBs) coupler or elbow and run horizontally or vertically to the outdoors. screen material can be placed at the inlet as appropriate for the environment (e.g.

  • Page 17: Closet Installations

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 1.4.9 Combustion Air Filtration if combustion air contamination from ingested particulate matter may be a NOTE concern in any installation, an optional air intake filter may be installed. IBC supplied air intake filters have a known pressure drop and fouling factor and Combustion fan should be used as a component of the combustion air system according to the blockages can occur when allowable intake length in Table 4.

  • Page 18: Condensate Removal

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Condensate reMoVal IBC’s specified vent configuration promotes the safe drainage of moisture from the boiler and exhaust venting without flowing liquids back through the heat exchanger (as done by other condensing boilers). reliable system operation requires (1) proper design and installation of exhaust venting to allow condensate to run back to the drain/trap; (2) proper trap depth to handle maximum potential pressure within the vent, and (3) acid neutralization as appropriate.
  • Page 19 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 1.5.1.1 WITH SCHEDULE 40 PLASTIC VENTING SYSTEMS (E.G. ULC-S636 CPVC) a condensate trap must be installed near the base of the boiler as shown in Figures 14 or 15. The trap is formed using PVC pipe, elbows and threaded union fittings. Figure 15: Condensate trap...
  • Page 20 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 1.5.1.2 WITH PPS VENTING SYSTEMS a condensate trap must be installed on the drain connection at the base of the boiler as shown in Figure 17. Please follow the installation instructions below: undo drain spout Compression nut (e), remove drain Hose (g) from trap drain outlet (F).
  • Page 21 VFC 15-150 - VFC 45-225 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). remove the trap Cleanout assembly (H), from the trap Body and clean and flush the debris out.
  • Page 22 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Figure 18: Condensate trap disassembly for cleaning Figure 19: Condensate trap drainage WARNING If condensates are to be discharged into building drain piping materials that are subject to corrosion, a neutralization package must be used.

  • Page 23: Water Piping

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Water PiPing WARNING 1.6.1 General Piping Issues During operation, the relief the VFC modulating series boilers are designed for use within a closed loop, valve may discharge large forced circulation, low pressure system. a 30 psi pressure relief valve (3/4" nPt) amounts of steam and/or hot is supplied for field installation in the flow supply line – see below. An optional 75...
  • Page 24 Secondary piping ensures adequate flow and de-couples Δ°T issues (boiler vs. system, to reduce risk of distribution). Aim for a 20° to 30° F Δ°T across the heat exchanger at high fire water escapement. (there is a boiler protection throttle fence limiting the Δ°T to 35°F). Table 5 - pump sizing - deleted; consult IBC Shop drawing information NOTE Full sized application drawings can be downloaded from our web site. www.ibcboiler.com...
  • Page 25 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS the VFC modulating series boilers are designed to supply three different heating loads with temperatures within the range 34°F to 185°F - to meet three separately piped loads. use closely spaced tees to connect each pumped “load”...
  • Page 26 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS PRESSURE VESSEL HEAD Flow rate (gpm) Head @ flow (ft wc) 12.3 NOTE Table 6: Pressure Vessel Head The Primary (boiler) pump ensure the pump is rated for the design circulating water temperatures; some must be under the control...
  • Page 27 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS shall be carried out after the retrofit, with filter clearing after the 1st day, 1st week, month and annually thereafter. Care is to be taken to avoid use of ferrous fittings and pumps on PB tube systems. 1.6.2 Installation Rules NOTE the Boiler trim element – common to each of the following systems NOTE: This piping drawings in this - includes the pressure relief, fill, expansion tank and air bleed elements. The manual are simple schematic primary pump can be located on either the supply or return piping sections.
  • Page 28 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS new load is not exceeded. in the case of the typical maximum limit for a radiant floor (most would enter 140°F); the floor pump would remain off, the boiler shut down, leaving primary circulation on until the primary loop temperature drops into the acceptable range for the floor. Temperature sensing is done using thermistors at the boiler supply and return – no further sensors need to be installed.

  • Page 29: Gas Piping

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS For further information and details, consult our Application Notes – which provide detail on specific single and multiple boiler applications “Piping”, “Wiring” and “Settings”. (available at www.ibcboiler.com or from your IBC Representative). gas PiPing the boiler requires an inlet gas pressure of at least 3.0" w.c. for natural gas or propane.

  • Page 30: Electrical Connections

    VFC 15-150 - VFC 45-225 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 31 / mechanical Terminal Strip for: contact; ensure that triac or other parasitically-powered units are not used.

  • Page 32: Thermostat Heat Anticipator

    1.8.6 Thermostat Heat Anticipator iBC “therm.” contacts draw no power, so an anticipator setting for the thermostat is not applicable with the VFC 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 33: Boiler Systems And Operation

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS bOILER SYSTEMS AND OPERATION 2.1 general VFC modulating series boilers are designed to service three separate, directly WARNING piped heating loads using different pre-selected water temperatures and heat regulation routines. external controls can extend applications.

  • Page 34: Lcd Display

    VFC 15-150 - VFC 45-225 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 – RFL (for radiant floor) in place of Standby). the target temperature for the relevant load is conspicuously displayed while that load is being handled.

  • Page 35: Advanced Setup

    For the user the code is “11111” followed by “enter” • a common “installer” code is also used, to ensure continuing access even with a change in service personnel. Contact iBC for access to this password. BOILER SYSTEMS AND OPERATION...

  • Page 36: Sequence Of Operation

    VFC 15-150 - VFC 45-225 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...
  • Page 37 VFC 15-150 - VFC 45-225 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 38: Other Operating Features

    With software versions 3.10.0 and higher, the boiler offers an error status signal feature. Please see IBC Technical Note: Boiler Status – Analog Output. see Section 5.3.1 Control Panel for a list of hard and soft errors and their likely causes.
  • Page 39 Manual for a message With software versions 3.10.0 and higher, the controller allows two loads of in respect of the use of such compatible temperature settings to be run together. see iBC technical note: override. load Pairing for further details.
  • Page 40 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Figure 30: Outdoor reset curves in an “open loop” reset system, a room or zone thermostat is used to send a call for heat over a 24VaC lead; this opens the respective zone valve, and signals the boiler to fire using onward leads to the boiler’s dry contacts (use one of the pairs...
  • Page 41 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 2.6.4 Variable Speed Pumping This section reserved. 2.6.5 Temperature Setback For heating loads declared as space Heating (e.g. with Outdoor Reset) and/ or DHW (where a thermistor probe is used), there are provisions for entering temperature setback intervals.

  • Page 42: Set Up & Load Definition

    Where the iBC controller senses a signal on the remote connections, it automatically subordinates its internal throttle logic, and adopts the external signal.
  • Page 43 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Each of the boiler’s 3 Load positions can be configured for any type of heating. VFC boilers are factory shipped with default settings as follows: load 1 set as Space Heating or Reset Heating, with High Mass Radiant Floor set as the terminal type; load 2 as set Point; and load 3 as dHW. the factory defaults can be changed using the Define Load 1-2-3 lines to reverse the order, turn off a load or do whatever the installer desires.
  • Page 44 Heat Load Configuration / Configure Load 1,2,3 fields (down to zero sec.= off). With software versions 3.10.0 and higher, the controller allows two loads of compatible temperature settings to be run together. See IBC Technical Note: Load Pairing for further details. 2-12...
  • Page 45 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 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. to enact the control arrangements as input, it is necessary that the piping structure and system wiring are configured appropriately (refer to Section 1.6.2 Installation Rules, page 1-20 for piping layouts and the Wiring...
  • Page 46 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS THIS PAGE INTENTIONALLY LEFT bLANK 2-14 INSTALLATION AND OPERATION INSTRUCTIONS...

  • Page 47: Startup And Commissioning

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS STARTUP AND COMMISSIONING 3.1 ligHting and sHutting doWn tHe Boiler STARTUP AND COMMISSIONING...

  • Page 48: Prior To Start-Up

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 3.2 Prior to start-uP 3.2.1 Pre-Ignition Checks Ensure venting system is complete and seal tested. Confirm any common venting system at the installation site is isolated and independent of the VFC boiler, that any holes left from removal of a previous boiler have been sealed, and that any resizing of the old flue has been done. Fill condensation trap to...
  • Page 49 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS With a combustion analyzer probe in the flue gas test port, turn the Gas:Air ratio adjustment screw (see Figure 31, “B”) to achieve 28% excess air (corresponding Co2 values are 9.2% for natural gas and 10.4% for propane). This screw offers very fine adjustment, and may require several turns. This screw has significant backlash. When changing direction of turn, NOTE: it may take up to a full turn before any change is indicated on the analyzer reading. Clock the gas meter to confirm full maximum rating plate input.
  • Page 50 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS THIS PAGE INTENTIONALLY LEFT bLANK INSTALLATION AND OPERATION INSTRUCTIONS...

  • Page 51: Maintenance

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS MAINTENANCE Boiler MaintenanCe 4.1.1 General Care CAUTION The owner is responsible for • Keep combustible materials and flammable liquids and vapours away from the general care of the boiler. boiler. Improper maintenance of • Keep vent terminals clear of obstructions (snow, dirt, etc.).

  • Page 52: Heat Exchanger

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 4.1.6 Heat Exchanger CAUTION during burner inspection (with the burner removed), examine the heat exchanger tubes adjacent to the burner’s normal position. in areas of poor gas quality, there may be a buildup of black plaque (typically sulfur). other fouling agents: airborne The IBC heat exchanger has a dust, debris and volatiles.

  • Page 53: Freeze Protection

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS • the second screen (below) shows another boiler (a 45-225) has operated for WARNING 26% of the total load 2 on-time at the bottom 30% of the throttle range and For service replacement of the virtually no time below that.

  • Page 54: Component Description

    # 180-022 FUNCTION: zero governor gas valve provides strict gas/air mixture control over the range — 15 - 150 MBH for VFC 15-150 or 45 – 225 MBH for VFC 45-225. see Section 3.3 - Commissioning, for gas valve adjustments INSTALLATION: 4.2.3 Direct Spark Ignition Module...

  • Page 55: Water Pressure Sensor

    3V lithium battery (iBC # 240-024) for powering the permanent memory if aC power is not connected. On-board field replaceable fuses (IBC # 240-023) are 5A, slow blow, 5mm x 20mm, and must be replaced using these same specs.
  • Page 56 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS THIS PAGE INTENTIONALLY LEFT bLANK INSTALLATION AND OPERATION INSTRUCTIONS...

  • Page 57: Troubleshooting

    VFC 15-150 - VFC 45-225 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 58: Temperature Sensors

    VFC 15-150 - VFC 45-225 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 59: Differential Air Pressure Sensor

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 5.2.2 Fan/blower operating power is provided by means of a separate 120 VaC connector at the back of the fan (white/black/green). Control of the fan is provided via a four lead connector at the front 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 60: Water Pressure Sensors

    VFC 15-150 - VFC 45-225 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 above for a presentation of the measurement points.
  • Page 61 0.7 Microamps. (see Section 5.3.1 - “Control Module - Maximum ignition trials error”, and Section 5.3.2 - “Ignition problems”). For conversion from Fenwal to the Capable Control, specify iBC part# 240-049 – that provides the module plus added wire lead and instructions.

  • Page 62: Troubleshooting Guide

    VFC 15-150 - VFC 45-225 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 63 VFC 15-150 - VFC 45-225 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.

  • Page 64: Ignition Problems

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS SYMPTOM DIAGNOSIS REMEDY • TEMPERATURE SENSOR Current outlet Check water flow. ERROR temperature exceeds operating limit. LCD Screen Message: • Defective or Check wiring to temperature sensor and Error - Max. In-Out Temp. disconnected control module.
  • Page 65 VFC 15-150 - VFC 45-225 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 66 VFC 15-150 - VFC 45-225 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 67 VFC 15-150 - VFC 45-225 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 68 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS THIS PAGE INTENTIONALLY LEFT bLANK 5-12 INSTALLATION AND OPERATION INSTRUCTIONS...

  • Page 69: Diagrams

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 6.0 DIAGRAMS 6.1 - VFC 45-225 Parts diagraMs 6.2 - VFC 15-150 Parts diagraMs 6.3 - additional Parts diagraMs 6.4 - Wiring diagraMs 6.5 - seQuenCe oF oPeration DIAGRAMS...
  • Page 70 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 6.1 VFC 45-225 Parts diagraM INSTALLATION AND OPERATION INSTRUCTIONS...
  • Page 71 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS ITEM # DESCRIPTION PART # ITEM # DESCRIPTION PART # Fan nrg 137 240-048 screw, M4 x 8 150-091 o-ring 150-073 sight glass Holder 250-309 Fan adapter Plate 180-023 gasket, sight glass...

  • Page 72: Vfc 15-150 Parts Diagrams

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 6.2 VFC 15-150 Parts diagraM INSTALLATION AND OPERATION INSTRUCTIONS...
  • Page 73 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS ITEM # DESCRIPTION PART # ITEM # DESCRIPTION PART # Fan rg 130 240-040 sight glass Holder 250-309 gasket Fan-Fan adapter 250-310 gasket, sight glass 250-060 Fan adapter Plate 180-023 sight glass...

  • Page 74: Additional Parts Diagrams

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 6.3 additional Parts diagraMs 51 TRAP/EXHAUST KIT Diagram 6.1-3: Vent high limit Diagram 6.1-4: Accessory parts kit (shipped with boiler) ITEM # DESCRIPTION PART # Pressure relief Valve 180-005 outdoor temperature sensor...

  • Page 75: Wiring Diagrams

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 6.4 Wiring diagraMs Diagram 6.2-1: Pictorial wiring diagram ELECTRICAL NOTES AND SPECIFICATIONS DIAGRAMS...
  • Page 76 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Diagram 6.2-2: Ladder wiring diagram INSTALLATION AND OPERATION INSTRUCTIONS...
  • Page 77 VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS Diagram 6.2-3: Internal wiring diagram DIAGRAMS...

  • Page 78: Sequence Of Operations

    VFC 15-150 - VFC 45-225 MODULATING GAS BOILERS 6.5 seQuenCe oF oPeration Diagram 6.3: Sequence of operation diagram 6-10 INSTALLATION AND OPERATION INSTRUCTIONS...
  • Page 79 Condensate neutralization? Yes/no Ignition Safety Shutoff test completed. Flame current reading - High fire _______ µA - Low fire _______ µA standby readings from iBC display screen - (remove all heat calls) - outdoor temperature ________ tank temperature _______ outlet temperature _________ outlet Pressure __________ Heat output ___________ load status screen readings - load 1 _______________ load 2 _______________ load 3 _______________ From installer setup Menu (scroll down) - altitude ______________ Prim.

  • Page 80: 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 81 notes...
  • Page 82 notes...
  • Page 83 • this boiler is part of a modular or multiple boiler system having a total input 300,000 Btu/hr or greater. • this boiler is equipped with a tankless coil (not applicable to iBC’s VFC boilers). US installers should contact IBC for any further information required.
  • Page 84 IbC Technologies Inc. 1445 Charles street, Vancouver, BC Canada V5l 2s7 tel: 604.877.0277 Fax: 604.877.0295 www.ibcboiler.com 120-100E-A-R4 september 2012...

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