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6.0 Boiler operation

Before operating the appliance, there are some important pre-igntion checks that need to be
performed. For more information, see

Before operating the boiler on page 73

. To understand the

boiler start-up process, see

Sequence of Operation on page 116

. If the sight glass viewport clouds up

at start-up, see

Cleaning the sight glass on page 98

.

6.1 Lighting and shutting down the boiler

Start-up Checklist

Check

Followed lighting and shutting down procedure.

□

Tested the ignition safety shutoff function (see

Testing the ignition safety shutoff on page

76

).

□

Checked the appliance's fuel source, and if necessary,

performed a fuel conversion

using

the appropriate P-kit.

□

Performed gas pressure test by

measuring the inlet gas pressure

.

□

Содержание CX Series

Страница 1: ...nity of this or any other appliance 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...

Страница 2: ...in the system A high water volume system with a low hardness count may cause as much damage as a system with less volume and higher hardness so it is recommended to treat water so as to reduce dissolv...

Страница 3: ...oving an existing boiler 19 3 3 Determining location of the appliance 20 3 3 1 Best installation conditions 21 3 4 Mounting the boiler 21 3 5 Connecting the vent and air intake pipes 23 3 6 Installati...

Страница 4: ...es in place of pumps 68 3 14 6 Thermostat heat anticipator 69 4 0 About the boiler controller 71 4 1 Controller 71 4 2 Control interface 72 5 0 Before operating the boiler 73 Important pre ignition ch...

Страница 5: ...s 98 7 6 Cleaning the condensate trap 98 7 7 Ensure door in place 101 8 0 Troubleshooting 103 8 1 Electronic components 103 8 1 1 Temperature sensors 103 8 1 2 Fan 104 8 1 3 Water pressure sensor 104...

Страница 6: ...Boiler part diagrams CX 150 CX 199 118 Installation Commissioning Report 122 6 Section Contents...

Страница 7: ...oints out installation maintenance and operational notes to enhance efficiency longevity and proper operation of the boiler Important safety instructions Installation start up and servicing of IBC boi...

Страница 8: ...se any phone in the building Immediately call the gas supplier from a phone located remotely Follow the gas supplier s instructions or if the supplier is unavailable contact the fire department Warnin...

Страница 9: ...to do so could result in damage to appliance and or electric shock Caution The boiler must be installed so that electrical components are not exposed to water during operation Known contaminants Known...

Страница 10: ...Intentionally left empty...

Страница 11: ...F 1 C Maximum water temp electronic hi limit 190 F 88 C 190 F 88 C Max T supply return electronic fence 40 F 22 2 C 40 F 22 2 C Max water temperature lockout limit 201 F 94 C 201 F 94 C Power use 120...

Страница 12: ...Trial for Ignition 4 seconds Flame Failure Response 0 8 second Domestic Hot Water Delivery 70 F 39 C temperature rise CX 150 4 1 GPM CX 199 5 5 GPM Cabinet dimensions CX 150 dimensions Figure 1 Front...

Страница 13: ...Figure 2 Top and bottom view CX 150 CX 199 dimensions Figure 3 Front and side view CX 199 13 CX 199 dimensions...

Страница 14: ...0 or 3 PP 80 mm 3 Schedule 40 or 3 PP 80 mm B Combustion Air Inlet 3 Schedule 40 or 3 PP 80 mm 3 Schedule 40 or 3 PP 80 mm C Boiler Return Water Inlet 1 NPT M 1 NPT M D Boiler Supply Water Outlet 1 NP...

Страница 15: ...rom the front 1 1 Standard features and benefits High thermal efficiency Coordinated Boiler and DHW circuits Compact Turn down ratio 10 to 1 Cascade up to 4 appliances 4 load pump management Built in...

Страница 16: ...lowing terms 0 10 years 100 coverage 11 15 years 25 coverage IBC offers a limited combustion heat exchanger warranty with no registration of 0 5 years 100 coverage For commercial applications IBC offe...

Страница 17: ...m interior dust sources Do not seal boiler case openings directly when firing allow for air circulation and ventilation in the immediate area Place the exhaust outlet 12 minimum above the down turned...

Страница 18: ...well away from all building air intakes including those of neighboring properties Caution Care must be taken to properly size the boiler for its intended use Prolonged full fire run time over sizing...

Страница 19: ...lers ANSI ASME CSD 1 If there is any conflict follow the more stringent regulations Table 2 Code requirements by country 3 2 Removing an existing boiler When an existing boiler is removed from a commo...

Страница 20: ...ed and approved for indoor installation wall or rack mounting in areas such as an alcove basement or utility room These areas should have a surrounding temperature of 32 F 0 C to 122 F 50 C and less t...

Страница 21: ...d exhaust pipes should terminate at a rooftop or sterile wall location to maximize customer satisfaction Keep exhaust plumes well away from all building air intakes including those of neighboring prop...

Страница 22: ...pliance to hollow wall structures The combined weight of the boiler its water content and associated piping components can exceed 113 pounds Fasteners must be rated for this strain and must be firmly...

Страница 23: ...6 Securing a pipe connection Combustion air piping if used is inserted directly into the 3 connector on the right side PP pipe should be inserted firmly into the connector until it cannot go further T...

Страница 24: ...nimum distance below the boiler of 12 is required to provide clearance for the supplied condensation trap assembly More clearance will typically be required to accommodate associated water and gas pip...

Страница 25: ...otherwise unused chimney as a vent raceway 3 7 3 Exhaust vent material Warning Covering non metallic vent pipe and fittings with thermal insulation is prohibited Exhaust vent material Canada Use PVC...

Страница 26: ...nal Refer to the vent terminal configuration drawings in the Vent Termination sections Flue gas exhaust to outdoors Combustion air from outdoors Direct Vent installation check air intake outside is cl...

Страница 27: ...e based on the severity of the problem Exhaust venting installation Exhaust venting must slope down towards the boiler with a pitch of at least per foot PP vent follow PP manufacturer requirements for...

Страница 28: ...ng and floor Confirm material meets local codes including fire stopping requirements Check the local jurisdiction on the minimum initial length of pipe that should be exposed or accessible for inspect...

Страница 29: ...he exhaust Unequal intake and exhaust piping is allowed Support should be provided for intake and vent piping particularly for horizontal runs follow local code Example of equivalent length calculatio...

Страница 30: ...t concern about rain infiltration rain will drain away through the condensate trap Optional bird screen may be placed in a termination fitting Leave unglued and hold in place with a short nipple This...

Страница 31: ...on noise allow a gap around the exhaust and air intake piping For roof top venting of multiple boiler sets group all intake terminals together for a common penetration through a custom cap Alternative...

Страница 32: ...kits when the outdoor temperature drops below 5 F 15 C Possible blockage of the combustion air intake can occur when the outdoor temperature drops below this temperature 3 7 6 Sidewall vent terminatio...

Страница 33: ...Vent terminal Air supply inlet Area where terminal is not permitted Figure 11 Minimum clearances from vent air inlet terminations 33 3 7 6 Sidewall vent termination...

Страница 34: ...ator within 3 ft 91 cm horizontally of the vertical center line of the regulator vent outlet to a maximum vertical distance of 15 ft 4 5 m J Clearance to non mechanical air supply inlet to building or...

Страница 35: ...style after passing through the wall to gain the required clearance as shown in Figure 12 and Figure 13 Use a 45 elbow on the exhaust termination to launch the plume up and off the sidewall for protec...

Страница 36: ...he boiler can result from a failure to maintain these separations Third party vent termination kits and concentric wall penetration kits that do not maintain these minimum separations must not be used...

Страница 37: ...4 Vent termination clearance vertical alignment Figure 15 Vent termination clearances vertical alignment side view Figure 16 Sidewall vent termination configuration option 1 37 3 7 6 Sidewall vent ter...

Страница 38: ...lculation for exhaust in the preceding table is used Install the SST to comply with the minimum vent clearances listed in Table 5 Install the SST with the vent and intake pipes horizontally beside eac...

Страница 39: ...SST Install multiple vent SST installations level with one another and maintain at least the minimum separation distances shown below The terminals shall not be stacked vertically Figure 20 Minimum se...

Страница 40: ...ombustion air is drawn from outdoors combustion venting should also transition to vertical and terminations should observe the limitations shown for rooftop terminations 3 7 7 Indoor air combustion ai...

Страница 41: ...on air must be made as follows in the USA in accordance with the National Fuel Gas Code ANSI Z223 1 latest edition or applicable provisions of the local building codes in Canada in compliance with B14...

Страница 42: ...ch as a closet ventilation openings may be needed through a door or wall to prevent excessive heat from building up inside the space The appliance must not be exposed to surrounding air above 122 F 50...

Страница 43: ...water When required add and maintain in good condition a neutralization tank For information on installing a condensate neutralizer see Installing a condensate neutralizer on page 45 The condensate t...

Страница 44: ...breaker opening and push firmly 2 Fill the condensate trap with water 3 Attach the drain hose and tighten the drain compression nut including washer 4 Slide the trap over the boiler drain outlet and t...

Страница 45: ...ding drain piping materials that are subject to corrosion use a neutralization package Caution After installing a condensate neutralization package the pH of the condensate discharge must be measured...

Страница 46: ...tering Condensate water line Warning Risk of damage to appliance All condensate discharge lines including neutralization tank inlet must be at a lower elevation than the condensate water line of the a...

Страница 47: ...rformance of a boiler s heat exchanger Improperly prepared water in a heating circuit may cause damage to the heat exchanger through fouling or corrosion Repeated or uncontrolled water fills will incr...

Страница 48: ...hydronic heating systems of mixed materials Improper mixtures and chemical additives may cause damage to ferrous and non ferrous components as well as non metallic wetted components normally found in...

Страница 49: ...a discharge line that Is connected from the valve outlet with no intervening valve and directed downward to a safe point of discharge Allows complete drainage of both the valve and the discharge line...

Страница 50: ...e site 3 11 2 System piping Note The piping drawings in this manual are simple schematic guides to a successful installation For further information and details consult our concept drawings which prov...

Страница 51: ...CW Space heating return Figure 28 Piping connections Pressure relief valve required shipped with boiler Important Shut off valves are not allowed between the relief valve and the boiler Space heating...

Страница 52: ...commended Thermostatic tempering valve if required by local code Domestic water DHW relief valve Primary loop circulator built into return side of boiler Figure 30 Boiler trim options single boiler Fl...

Страница 53: ...s use a primary secondary piping system with a boiler loop piped in 1 or 1 Primary Secondary piping ensures adequate flow and de couples T issues boiler vs distribution Aim for a 20 F to 30 F T across...

Страница 54: ...n on secondary loops extending vertically to a load above the primary loop especially where head loss is low install check valves on both supply and return of secondary piping or install a check valve...

Страница 55: ...solation valves Thermostatic mixing valve for the lower temperature emitter required for simultaneous operation of two space heating temperatures Thermostatic tempering valve if required by local code...

Страница 56: ...few cases C the internal pump will be adequate to provide flow through the building s heat emitters Ensure that the internal pump is powerful enough for system distribution Avoid D where an external...

Страница 57: ...Air handler Closely spaced tees Circulator sized for secondary piping only Figure 35 Air handler on primary loop and direct domestic water piping 57 3 11 2 System piping...

Страница 58: ...k valve typical of each boiler Closely spaced tees Domestic water Thermostatic tempering valve if required by local code From building To building Figure 36 Multiple boiler piping 58 Section Installat...

Страница 59: ...ow sensor and the appliance fires up to begin generating domestic hot water We strongly recommend treating hard water and adjusting the pH between 6 5 and 8 5 Refer to the table on drinking water guid...

Страница 60: ...scald hazard or if codes require specific water temperatures at the hot water faucet the installer may Install a field supplied thermostatic mixing valve at this appliance and ensure it is working pr...

Страница 61: ...meant to be left open if not used to allow for the air in the coil to expand and contract as the appliance is in operation 3 12 2 Domestic hot water piping The domestic water piping connections are l...

Страница 62: ...hot water with a water pressure lower than 40 PSI reduces the amount of hot water generated and increases the risk of scaling in the heat exchanger The domestic hot and cold water connections must be...

Страница 63: ...ing valve may be installed on the direct domestic hot water piping connections at the appliance or at the outlet of a domestic hot water storage tank if using the domestic hot water function Failure t...

Страница 64: ...er s minimum specification at all firing rates and will not exceed the boiler s maximum pressure rating when locked up with no load 3 13 1 Gas pressure The boilers require a minimum inlet gas supply p...

Страница 65: ...during any pressure testing of the system at test pressures in excess of psig Dissipate test pressure prior to reconnecting The boiler and its gas piping must be leak tested before being placed into...

Страница 66: ...emoving power to the boiler This will interrupt the moisture management routine fan turns at ultra low RPM for 90 minutes after burner shutdown resulting in serious damage to the boiler Treat the boil...

Страница 67: ...s drawing over 1 3 HP use a protective relay 3 14 2 2 Boiler pump The boiler primary pump is factory installed and wired Pumps can be switched on off using the touchscreen controller so there is no ne...

Страница 68: ...l boiler controller for direct throttle control The boiler s own sensors act as high limits only The user must enter maximum and minimum boiler supply temperatures Note Sensors connected to any sensor...

Страница 69: ...ssociated contacts on the TB1 terminal strip 3 14 6 Thermostat heat anticipator IBC Therm contacts draw no power so an anticipator setting for the thermostat is not applicable with these appliances In...

Страница 70: ...Intentionally left empty...

Страница 71: ...simultaneous operation of two similar water temperature loads Programmable setback override schedule The control can manage or operate in a network of up to 4 IBC CX boilers without additional contro...

Страница 72: ...ols Do not use a sharp or metallic object such as a screw driver to operate the control as it could damage the touchscreen Prior to any interaction with the touchscreen the display shows the Home scre...

Страница 73: ...rtant to review the following checklist of precautions Checklist for electrical conditions ducting and water connections Checking electrical conditions Check Check all line voltage electrical connecti...

Страница 74: ...e boiler Check The installer must verify that at least one carbon monoxide alarm has been installed within a residential living space or home following the alarm manufacturer s instructions and applic...

Страница 75: ...f the sight glass viewport clouds up at start up see Cleaning the sight glass on page 98 6 1 Lighting and shutting down the boiler Start up Checklist Check Followed lighting and shutting down procedur...

Страница 76: ...ontrol valve directly outside the boiler case 2 Ensure that the boiler has purged attempted to re light three times has shut off and the appropriate error information is displayed on the controller 3...

Страница 77: ...e if the boiler is configured for natural gas but needs to be converted to propane use the conversion kit sold separately by IBC to install the appropriate fitting s and adjust the gas valve according...

Страница 78: ...he new fuel appropriate mixer with the Philips head bolts 2 Check that the gasket is in place between the gas valve outlet pipe and the mixer 3 Connect the gas line to the mixer using the brass union...

Страница 79: ...est port Gasket Low fire adjustment offset pressure Mixer High Fire Adjustment Fan O ring Gas valve Fan coupler O ring Fan Figure 42 Gas valve and fan components 6 3 3 1 Measuring the inlet gas pressu...

Страница 80: ...s pressure test port 8 Tighten inlet gas pressure test port screw 9 Switch on the gas supply and return the boiler to normal operation 6 3 3 2 Performing a combustion test and adjustment The High Fire...

Страница 81: ...hen Turn counter clockwise to lower CO2 Start with of a turn until you see the analyzer measure a change then only make 1 16 adjustments If changing direction on this adjustment you may notice a signi...

Страница 82: ...LWCO function provides continuous protection against low water in the boiler If the SIM detects low water the boiler enters a lockout state Perform the test to ensure that the LWCO sensor is function...

Страница 83: ...erature function 1 Go to SIM Menu Hi Limit Test Read the instructions You will need to enter a cutoff temperature below the actual supply temperature value currently displayed For example if the Suppl...

Страница 84: ...Intentionally left empty...

Страница 85: ...arance of soot at the vent termination any such signs should be brought to the immediate attention of a qualified service technician Monthly Inspection of the boiler is to be performed annually by a q...

Страница 86: ...and have not been adversely amended Annually Check the operating history using the boiler s Logs menu and Error Logs menu The controller tracks the duty cycle of the boiler in each of the loads separa...

Страница 87: ...ish a reasonable burner inspection schedule Some combi boiler locations may call for annual service others showing clean burners will only need attention every 2 5 years c Reassemble Visually inspect...

Страница 88: ...in the system Use only antifreeze made specifically for hydronic systems Inhibited propylene glycol is recommended Antifreeze volume must be between 25 and 50 of the total volume of water in the syst...

Страница 89: ...is functioning normally Check for any noise in the system Annually Check water piping for damage or leaks and repair as needed Annually Check the water pressure Pressure should be stable when the com...

Страница 90: ...leak from the discharge pipe perform the test again to try and flush any debris that may be lodged in the valve If repeated tries fail to stop the leakage contact a licensed contractor or qualified s...

Страница 91: ...ressure test port Brass union nut Manifold gas pressure test port Gasket Low fire adjustment offset pressure Mixer High Fire Adjustment Fan O ring Gas valve Fan coupler O ring Fan Figure 44 Gas valve...

Страница 92: ...the mixer aside for re installation 10 Carefully remove the fan O ring and note its position for re installation 11 Remove the electrical connection to the fan 12 To remove the fan unscrew the two nu...

Страница 93: ...e gas valve from the gas valve outlet pipe undo the union nut at the gas valve outlet and set the pipe aside for re installation 9 Ensure that the O ring and nut retainer are secured to the pipe 10 At...

Страница 94: ...respirators certified by NIOSH For the most current information NIOSH can be contacted at 1 800 356 4676 or on the web at www cdc gov niosh 2 Wear long sleeved loose fitting clothing gloves and eyes...

Страница 95: ...amaged during removal and will likely need to be replaced 14 Install the new burner and gasket ensuring that all screws are tightened evenly by repeating the tightening sequence a few times as shown i...

Страница 96: ...drain port not visible below located behind boiler inlet connector and the strainer flow restrictor Boiler circuit water pressure sensor Bypass check valve DHW outlet temperature sensor DHW flat plate...

Страница 97: ...harness 4 Sensor is retained by a fork shaped clip Caution this may be sharp to the touch Use needle nose pliers to squeeze the clip prongs together when prongs disengage from their secured position...

Страница 98: ...ore you reassemble the sight glass check that the gaskets are in good condition 6 Assemble the components see image below by first inserting the rubber gasket linside the refractory top mfollowed by t...

Страница 99: ...allow it to cool down Important Installers or service contractors should ensure that the end user is instructed on cleaning and refilling the trap 1 Pull back the clip to release the trap and pull th...

Страница 100: ...p with water and replace the union cap and gasket 4 Slide the trap over the heat exchanger drain outlet making sure it is secured by the clip and tighten the upper union nut to ensure an airtight seal...

Страница 101: ...7 7 Ensure door in place The boiler door must be in place during operation Ensure door is in place after service 101 7 7 Ensure door in place...

Страница 102: ...Intentionally left empty...

Страница 103: ...and compare with the value derived from the measurement of the resistance obtained by connecting a good quality test meter capable of measuring up to 5 000 k 5 000 000 at the controller end of the se...

Страница 104: ...82 1 172 85 29 8 250 185 85 1 073 90 35 7 334 190 88 983 95 35 6 532 195 91 903 Table 11 Temperature sensor resistance values 10K ohms 8 1 2 Fan The fan is controlled via the SIM control The SIM provi...

Страница 105: ...zero Check the flow sensor for fouling or loose wiring If sensor is spinning freely and connected replace the sensor 8 1 5 Safety and Ignition Module SIM The SIM is a safety control certified to conf...

Страница 106: ...Flashing Lockout Possible errors An operating limit was exceeded A sequence failed An external sensor fault was detected Flash alternately with LED 2 Flash alternately with LED 1 Fail safe An error w...

Страница 107: ...e if the hi limit switch is operational You can also perform this test for gasket blowouts 8 2 Troubleshooting error messages Warning Never attempt to repair the control module circuit board If the co...

Страница 108: ...ler ignites but shuts off at the end of the ignition trial Improperly grounded pressure vessel burner or unserviceable ignition lead or spark module Ensure the pressure vessel is grounded Check the ig...

Страница 109: ...k of the controller board Temperature sensor input problem Test each temperature sensor for appropriate readings and Replace defective temperature sensor Error Max Inlet Outlet Sensor Temp Exceeded Ch...

Страница 110: ...ssure gas pressure too high too low Check CO2 level via analyzer Check for proper gas piping Check pressure with manometer during ignition Boiler will not attempt to ignite Fan and pump are operating...

Страница 111: ...evel Defective thermostat Refer to manufacturer s instructions Obstruction in condensate drain Inspect and clean condensate drain appliance cycling on operating safety controls Check operation with Oh...

Страница 112: ...s on clearing errors see Resetting a boiler after a hi limit temperature lockout on page 107 and Resetting a boiler after a LWCO lockout on page 106 DHW taking too long to heat Sensor may be under rea...

Страница 113: ...required Confirm adequate pump size and temp rise in the heat exchanger Slow combustion air blower Check that CO2 level is within specification Dirty burner heat exchanger Check pressure drop Low wat...

Страница 114: ...Appendices Wiring diagrams Figure 48 Controller electrical diagram 114 Section Troubleshooting...

Страница 115: ...Figure 49 Internal wiring diagram 115 Wiring diagrams...

Страница 116: ...Figure 50 Sequence of Operation 116 Section Troubleshooting...

Страница 117: ...8 4 Exploded views of the CX 150 CX 199 appliance 117 8 4 Exploded views of the CX 150 CX 199 appliance...

Страница 118: ...cover CX 199 1 2 Exhaust duct 1 3 Intake duct 1 4 Temperature sensor P 361 1 5 Safety Ignition Module plus SIM P 271B 1 6 Front door cover CX 150 1 Front door cover CX 199 1 7 Thumb screw 2 8 Termina...

Страница 119: ...119 Boiler part diagrams CX 150 CX 199...

Страница 120: ...asket CX 150 P 1525 1 Refractory and heat exchanger lid gasket CX 199 P 1529 1 10 Burner gasket P 1522 1 11 Burner CX 150 P 1526 1 Burner CX 199 P 1530 1 12 Rollout switch P 9070 1 13 Heat exchanger C...

Страница 121: ...P 1606 1 26 Gas inlet 3 4G to 1 2 NPT 1 27 29 Inlet gas line union gasket P 1522 2 28 Flex gas line P 1610 1 30 Gas valve P 326B 1 31 Gasket gas valve outlet pipe to gas valve 1 32 Gas valve outlet pi...

Страница 122: ...type concentration of any glycol chemicals used ___________________ Air purge completed Relief Valve correctly installed and piped Relief valve try lever test performed Condensate trap filled Condensa...

Страница 123: ...THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST ONE OF THE FOLLOWING CONDITIONS IS TRUE An external energy management system is installed that reduces the boiler water temperature as the heating load...

Страница 124: ...77 0277 T856 877 0544 F604 877 0295 F856 735 5584 Toll Free 1 844 HEAT IBC 1 844 432 8422 www ibcboiler com Information in this document is subject to change without notice IBC assumes no responsibili...

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