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  This manual is intended only for use by a qualified heating installer/technician. Read and follow this manual, all supplements and related 

instructional information provided with the boiler. Install, start and service the boiler only in the sequence and methods given in these 

instructions. Failure to do so can result in severe personal injury, death or substantial property damage.

 

Do not use the boiler during construction.

 Construction dust and particulate, particularly drywall dust, will cause contamination of 

the burner, resulting in possible severe personal injury, death or substantial property damage.  The boiler can only be operated with a dust-

free air supply. Follow the instruction manual procedures to duct air to the boiler air intake. If the boiler has been contaminated by operation 

with contaminated air, follow the instruction manual guidelines to clean, repair or replace the boiler if necessary.

  Affix these instructions near to the boiler/water heater. Instruct the building owner to retain the instructions for future use by a qualified 

service technician, and to follow all guidelines in the User’s Information Manual.

12/2021 Copyright 2015 Mestek, Inc.

Stainless Steel Condensing Boilers 

Models CK850, CK1000, CK1500, 
CK2000, CK2500, CK3000, CK3500, 
CK4000, CK4500, CK5000, CK6000, 
CK7000, CK8000 & CK9000

Boiler Manual

Installation and Operation 
Instructions

FCR-IOM-10R

82-0651

Also read and follow:

 

HeatNet Control Manual

Содержание FLEXCORE CK7000

Страница 1: ...ge The boiler can only be operated with a dust freeairsupply Followtheinstructionmanualprocedurestoductairtotheboilerairintake Iftheboilerhasbeencontaminatedbyoperation with contaminated air follow th...

Страница 2: ...OF 160 PSI 1103 kPa WATER INSTALLER THESE INSTRUCTIONS TO BE AFFIXED ADJACENT TO THE BOILER WATER HEATER CONSUMER RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE PURPOSES CONTENTS Before Your Start pa...

Страница 3: ...flooring but never on carpeting 4 Locate the boiler in an area that will prevent water damage to adjacent construction should a leak occur or during routine maintenance 5 DO NOT place this boiler hea...

Страница 4: ...be within 12 in 300 mm of but not less than 3 in 80 mm from the bottom of the enclosure Where directly communicating with the outdoors or communicating with the outdoors through vertical ducts each o...

Страница 5: ...propriate thimbles and fire stops must be used where required Improper installation of common positive pressure vent systems can result in excessive levels of carbon monoxide which can cause severe pe...

Страница 6: ...ry IV 100 100 100 100 100 100 100 100 100 100 100 100 100 100 Standard Tee 1 25 20 ft 25 ft 25 ft 30 ft 35 ft 35 ft 40 ft 40 ft 40 ft 50 ft 50 ft 55 ft 55 ft 55 ft Boot Tee 0 65 10 ft 15 ft 15 ft 15 f...

Страница 7: ...all metal vent system passes through an unheated space it must be insulated with insulation rated for 400 F 204 C Structural penetrations must be made using approved fire stops The top of a vertical v...

Страница 8: ...UARD Security Chimneys Secure Seal Schebler Chimney Systems e Vent VAN PACKER CS Z Flex Z Vent Jeremias GOV ICC VIC Exhaust Termination Hood Exhaust 90 deg Exhaust Tee Exhaust 45 deg Exhaust Straight...

Страница 9: ...L6 S2D 09 00002 002 09 0112 2000 2500 9801MAD SS8FFNSAU SSD8FFNSAUK SWKL8 S2D 09 00002 001 09 0113 3000 3500 91001MAD SS10FFNSAU SSD10FFNSAUK SWKL10 S2D 09 0310 004 09 0115 4000 4500 5000 91201MAD SS1...

Страница 10: ...ric dampers may be omitted When required by applicable codes install a thermal spill switch on each barometric damper 1 Connect each boiler riser to the common vent with a Y connection or Boot T only...

Страница 11: ...er to prevent pressure differences due to prevailing winds In cold climates double wall or insulated inlet pipe recommended to prevent condensation 0 1 2 3 4 5 6 7 8 9 0 5 10 15 20 Horizontal Distance...

Страница 12: ...nsing Boilers Installation Manual Figure 4 Vertical Air Intake and Venting for Direct Vent System Figure 5 Combination Direct Vent Systems 10 FT 3 1 m 4 FT 1 2 m 5 FT 1 5 m 1 5 FT 0 5 m 5 1 2 FT 1 7 m...

Страница 13: ...ction must also be followed Figure 6 Side Wall Venting VERTICAL VENT Recommended POSITIVE PRESSURE CATEGORY IV In this configuration the boiler blower is used to push the flue products vertically to t...

Страница 14: ...e 8 The chimney system must provide a negative pressure of 0 02 to 0 10 in 0 51 to 2 5 mm WC at the boiler flue collar with the unit running When using a listed metal chimney system the chimney system...

Страница 15: ...s les portes entre l espace o les appareils toujours raccord s du syst me d vacuation sont install s et les autres espaces du b timent Mettre en marche les s cheuses tous les appareils non raccord s a...

Страница 16: ...of 2 ft 61 cm from the center line of the terminal E Clearance to unventilated soffit F Clearance to outside corner G Clearance to inside corner H Clearance to each side of center line extended above...

Страница 17: ...00 Btuh 3 kW and 100 000 Btuh 30 kW 36 in 91 cm for appliances 100 000 Btuh 30 kW 4 ft 1 2 m below or to side of opening 1 ft 300 mm above opening C Clearance to permanently closed window D Vertical c...

Страница 18: ...ch deck or balcony is fully open on a minimum of two sides beneath the floor NOTES 1 In accordance with the current CSA B149 1 Natural Gas and Propane Installation Code 2 In accordance with the curren...

Страница 19: ...PE DISCHARGE PER ASME SECTION IV SO AS TO AVOID EXPOSURE OF PERSONS TO HOT LIQUID OR VAPOR AND ALLOW COMPLETE DRAINAGE OF RELIEF VALVE AND PIPING LOW WATER CUTOFF CONDENSATE DRAIN ASSEMBLY AIR VENT AI...

Страница 20: ...670 9 89 4 8000 154 3 771 5 102 9 9000 174 3 871 5 116 2 Min Max flow correspond to a 20 F 100 F t at full input for applications requiring operation above and or below these parameters please consult...

Страница 21: ...ppm chloride concentration and no greater than 300 ppm hardness Suspended solids such as Magnetite Iron Oxides must be flushed from the system prior to commissioning the boiler s The PH level must be...

Страница 22: ...WATER MAKE UP Water Meter WM WM For Heat net Operation A Sensor Is Required And Installed At A Minimum Of 12 From Primary Loop Tee Riom 0205_a Tangential Type Air Separator Aquastat Heat Net Sensor Pr...

Страница 23: ...water born bacteria Figure 14 Typical Single Boiler with Indirect Storage Tank Piping RIOM 0206_A HEAT NET SENSOR EXPANSION TANK THERMOMETER BACKFLOW PREVENTION DEVICE GATE VALVE PUMP TEMPERATURE PRES...

Страница 24: ...M 0207_A HEAT NET SENSOR EXPANSION TANK THERMOMETER ATURE URE VALVE PRESURE RELIEF VALVE VACUUM RELIEF VALVE NOTES 1 WHEN USING INTERMITTENT PUMP AND PUMP DELAY LOCATE HEAT NET SENSOR WITH WELL IN LOW...

Страница 25: ...roperly If more than one appliance is supplied by the same supply pipe the piping must be sized based on the maximum possible demand Do not neglect the pressure drop due to pipe fittings Table 8 shoul...

Страница 26: ...to full load of the gas supply line and all the appliances running Always use a wrench on the gas valve body when making gas connections to it Never over tighten the piping entering the gas valve body...

Страница 27: ...EGULATOR PILOT SHUT OFF VALVE TYP REAR MODULE FRONT MODULE GAS MANIFOLD MAIN GAS VALVE RIOM 0210_C MODULATING GAS VALVE TYP SUPPLIED BY OTHERS PIPING GAS SUPPLY CK7000 TO 9000 REAR MODULE FRONT MODULE...

Страница 28: ...g Close the make up water valve and check and clean the strainers and make up water pressure reducing valve Open the make up water valve and adjust the system pressure if necessary The system should b...

Страница 29: ...ay will say Standby Figure 18 13 Slide the HeatNet controls low fire switch on the HeatNet control board to the low fire position 14 The boiler will begin the start sequence 15 When the main display r...

Страница 30: ...es and observe the combustion reading The Calibration Min Max represents the mapped signal sent to the blower and doesn t reflect the modulation as indicated on the Master Member Screens a Place the S...

Страница 31: ...that it can be changed Adjust the maximum value using the arrow keys to achieve the required combustion CO2 O2 Table 11 and pressure delta p Table 12 c The high fire trim adjustment is located on the...

Страница 32: ...0 45 0 45 0 45 0 45 0 40 0 45 0 45 0 45 0 45 Firing Rate 4500 Delta P W C 5000 Delta P W C 6000 Delta P W C 7000 Delta P W C 8000 Delta P W C 9000 Delta P W C Front Module Rear Module Front Module Re...

Страница 33: ...st limit in the Limit String to Ignition Control Have We received the BLOWER signal CALL FOR HEAT PRE_PURGE Interlocks OK Are we below the Temp Band YES fire the boiler NO Send 120 VAC BLOWER signal L...

Страница 34: ...h a dc voltmeter Figure 20 Pilot Assembly CHECKING ADJUSTMENT OPERATION Spark Gap The gap has to be measured and adjusted with the igniter removed from the boiler Observe the trial for ignition to con...

Страница 35: ...Water Cutoff Ensure that the low water cutoff device s function properly Test in accordance with the manufacturer s instructions included with the device s DIAGNOSTICS The FlexCore has a display that...

Страница 36: ...this manual for reference 1 Check the operating controls for proper operation 2 The probe on a probe low water cut off must be removed cleaned and inspected at least once a year Ensure that the low wa...

Страница 37: ...UBING POSITIVE PRESSURE TAP NEGATIVE PRESSURE TAP PILOT VALVE ASSEMBLY ASCO AIR SHUT OFF VALVE UV SCANNER AIR PUMP AIR BOX DIFFERENTIAL PRESSURE PILOT GAS PILOT AIR NOTES 1 TYPICAL PER EACH INDIVIDUAL...

Страница 38: ...OVE 1 2 3 4 5 6 7 8 Low Fire Hold Fires the boiler at the minimum rate while in Calibrate This functions exactly as the T1 input Calibrate Allows adjustment of the Minimum Fire Maximum Fire and Pilot...

Страница 39: ...E VIEW C SEE VIEW D RIOM 0217_D 46 SEE VIEW F 49 17 22 19 49G 49H 1 1A 2 2A 3 3A 5 5 9 8 10 11 7 6 1 4 23A SEE VIEW A 49F SEE VIEW E 48 47 45 15 16 18 44A 50 51 41A 42A 24 21 25B 33 25A 24A 21 20 43A...

Страница 40: ...VIEW D RIOM 0217_D SEE VIEW F 22A 23A 48 47 46 45 15 16 19A 18 17A 44A SEE VIEW A 25A 25C 25D 21 22A 21 22B 23D 24A 24B 23C 17C 19A 17D 19B 41B 42B 43B 49D 49C 49A 33 49H 49G 49E 44C 44D 44F 2B 5 1B...

Страница 41: ...66A 67A 68A 69 65A 68B CK0850 TO 1000 ONLY 58C 58A 58B 59 58 53 52 54 56 61 54 63 54 65 60A 60C 60B 60 VIEW A RIOM 0217_D 64 60D 62 57 55 67 68 69 66 VIEW B 73 73 45 72 RIOM 0217_D 72 72 45 72 45A 45...

Страница 42: ...42 FlexCore Stainless Steel Condensing Boilers Installation Manual 80 82A 82A 81 80A 79A 78 77A RIOM 0217_D VIEW C 76A 77A 79A 80A 81 78 82A 82 81 79 77 78 76 VIEW D RIOM 0217_D 84 83 86 85...

Страница 43: ...ainless Steel Condensing Boilers Installation Manual VIEW E RIOM 0217_D OR 92A 97A 95A 96 93 98 94A 87 88 95 98 97 93 92A 96 94 87 88 90 89 OR 93 94 96 97 98 91 95 92 96A 88 87 VIEW F RIOM 0217_D 71 1...

Страница 44: ...74 0015 005 1 1 1 33 Air Box Splice Panel 74 0022 001 1 1 1 1 1 2 2 2 41 Rear Jacket Panel 75 0049 001 1 1 1 1 1 1 41A 75 0049 002 1 1 1 1 1 41B 75 0049 003 1 1 1 NS DrainValve 11 0461 1 1 1 1 1 1 2...

Страница 45: ...mall Combustion Chamber 01 0061 002 1 1 1 1 1 SS Ring Large Combustion Chamber 01 0062 002 1 1 1 1 2 1 2 2 3 3 3 56 Combustion Chamber Small 05 0401 001 1 1 1 1 1 Combustion Chamber Large 05 0401 002...

Страница 46: ...lve 11 0376 002 1 1 1 1 1 1 2 2 2 2 2 3 3 3 86 Mini Fan 12 0021 002 1 1 1 1 1 1 2 2 2 2 2 3 3 3 87 Air Pressure Switch 0 25 WC 14 0067 1 1 1 1 1 1 2 2 2 2 2 3 3 3 88 Air Pressure Switch 2 5 WC 14 0068...

Страница 47: ...10 2 Disable any external call for heat and toggle the remote local switch to REMOTE follow section Operating Instructions Steps 11 14 3 Ignition and pilot adjustment Toggle the LOW FIRE switch to cy...

Страница 48: ...LOW WATER CUT OFF HIGH LIMITS COMMISSIONING THE BOILER UNIT CYCLED MINIMUM OF 15 TIMES THE DELTA T BETWEEN THE HEATER IN LET AND OUTLET IS CRITICAL TO PROP ER FLOW BEFORE YOU LEAVE THE JOB SITE YOU MU...

Страница 49: ...ll exhaust vent termination is less than seven 7 feet above finished grade in the area of the venting including but not limited to decks and porches the following requirements shall be satisfied 1 INS...

Страница 50: ...ioning the boiler s In addition pH levels must be in the 6 5 10 range Failure to follow these guidelines will void the warranty This Limited Warranty does not Apply a If the product has been subjected...

Страница 51: ...51 FlexCore Stainless Steel Condensing Boilers Installation Manual...

Страница 52: ...www rbiwaterheaters com 7555 Tranmere Drive Mississauga Ontario L5S 1L4 Canada Phone 905 670 5888...

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