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Th is manual is intended only for use by a qualifi ed 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. Th

e 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.

Affi x these instructions near to the boiler/water heater. Instruct the building owner to retain the instructions for future use by a qualifi ed

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

P/N 42-9470 3/08 Copyright 2007 Mestek, Inc.

Cast iron condensing boiler

Cast iron condensing boiler

Boiler manual

Installation and operation
instructions

Boiler manual

Installation and operation
instructions

Also read and follow:

200

i

Control manual

200

i

Vent/Air manual

Also read and follow:

200

i

Control manual

200

i

Vent/Air manual

M2i-IOM-2

200i

200i

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Содержание 200i

Страница 1: ...ated with a dust freeairsupply Followtheinstructionmanualprocedurestoductairtotheboilerairintake Iftheboilerhasbeencontaminatedbyoperation with contaminated air follow the instruction manual guideline...

Страница 2: ...ication sensing Because of its low excess air operation and controlled combustion the burner also provides low NOX emissions and quiet operation Gas valve blower and venturi Most gas valves regulate a...

Страница 3: ...mbly Pressure switches blocked flue and blocked air inlet Control connection board Electrical box power and control entrances Water return connection Air inlet sleeve Relief valve Relief valve piping...

Страница 4: ...ore leaving the installation site after start or service fill out the Start up service history information on the back page Contents Customer service and technical support Please direct all questions...

Страница 5: ...s Should overheating occur Do not shut off power to the circulators if the boiler should overheat or thegassupplyfailtoshutoff Instead shutoffgassupplytotheboilerwith a manual valve in the gas supply...

Страница 6: ...ctrical requirements Voltage 120 vac 60 hz 1 phase Current draw 120 volt power line Amperes 2 75 Thermostat anticipator setting Amperes 0 5 Operating control Mestek SmartCycleTM control 4 Control oper...

Страница 7: ...duct or other means of providing make up air if the intake air op tion isn t used Any building utilizing other gas burning ap pliances a fireplace wood stove or any type of exhaust fan must be checke...

Страница 8: ...ftheboilerroom provides at least the minimum SERVICE OPERATION clearances given in Table 2 Failure to provide adequate ventilation could result in overheating of the boiler components or the room pote...

Страница 9: ...dings as having all of the following Walls and ceilings exposed to the outside atmosphere have a continuous watervaporretarderwitharatingof1permorlesswithopeningsgasketed Weather stripping has been ad...

Страница 10: ...losion causing possible severe personal injury death or substantial property damage Connecting the relief valve Connect inch NPT black iron pipe and fitting so the relief valve as shown in Figure 4 Fo...

Страница 11: ...a section of the piping that will ensure enough flow to operate the switch Additional high limit controls For ASME CSD 1 or Canadian applications or when required by applicable codes install an additi...

Страница 12: ...those that have air above the water in direct contact with the water See Figure 5 right side See Figure 7 for suggested piping Guidelines for closed type expansion tanks NEVER use automatic air vents...

Страница 13: ...d 12 Extra high limit when required 13 Zone valve 14 Zone circulator 15 Differential pressure by pass valve Use when high head circulator may cause noise erosion or valve lifting problems when only a...

Страница 14: ...tion of DHW tanks Makesuretoincorporateflow checkvalvesasshown Thesepreventforced flow in idle zones LEGEND 1 200i boiler 2 Boiler circulator 4 Boiler system circulator 5 Indirect fired DHW tank when...

Страница 15: ...through the heating loop s This is important for summer time operation of DHW tanks Makesuretoincorporateflow checkvalvesasshown Thesepreventforced flow in idle zones LEGEND 1 200i boiler 2 Boiler ci...

Страница 16: ...ation when required When heating system boilers are piped in parallel as in Figure 12 connect the DHW tank as a zone off of the main header or install boilers dedicated to the DHW application LEGEND 1...

Страница 17: ...es If using variable speed control of the system circulator ensure that the flow never drops below the total minimum for all boil ers connected The boiler loop can be any of the designs in this manual...

Страница 18: ...ock pressure test port Check the gas type The 200i comes from the factory ready to be piped to the gas supply If for any reason the boiler is not for the type of gas avail able at the installation sit...

Страница 19: ...ipe sizing Required supply pressure at boiler Minimumgassupplypressure naturalgasorpropane bothfor flowing and static conditions 4 inches 102 mm water column Maximum gas supply pressure natural gas or...

Страница 20: ...substantial property damage The electrical connections to this boiler must be made in accordance with all applicable local codes and the latest revision of the National Electrical Code ANSI NFPA 70 In...

Страница 21: ...ith the boiler cannot be used for system circulation Itmustbeused assuppliedfromthefactory Itcirculateswateraftertheboiler stops firing to prevent potential damage from heat pocketing in the top of th...

Страница 22: ...using 4 wire zone valves without a zone controller For other applications such as circulator relays or zone controllers see Appendix A in this manual Also see the Control manual Polarity The connectio...

Страница 23: ...c Cast iron condensing boiler Cast iron condensing boiler Installation and operation manual Figure 21a 200i wiring summary see Boiler manual and Control manual text for additional information Wiring a...

Страница 24: ...boiler Cast iron condensing boiler Installation and operation manual Figure 21b 200i wiring summary see Figure 21 for locations see Boiler manual and Control manual text for additional information Wir...

Страница 25: ...ff switch ON The control will beep at least twice and the display will show the first STANDBY display in Figure 22 Note that pushing the DOWN button on the keypad will change the right side of the dis...

Страница 26: ...xample The setpoint must never be higher than the OP LIMIT setting minus the LIMIT BAND minus half of the HEAT BAND setting This would cause the boiler to hit limit while trying to modulate Example If...

Страница 27: ...e arrow keys until the cursor points at OA RESET The default setting is ON To change the setting press SELECT and use the arrow keys to change from ON to OFF Press SELECT then BACK If outdoor reset is...

Страница 28: ...ndanyothergas burningappliance to their previous condition of use Any improper operation of the common venting system should be corrected so the installation conforms with the National Fuel Gas Code A...

Страница 29: ...l a cover over the tubing or some other means to protect it from damage or movement Prevent freezing Do not route the line through or termi nate the line in any area that could expose the condensate t...

Страница 30: ...atter Use cleaning chemicals sold for use in hydronic systems Replacementboilerinstallationsoftenhavelargeamountsofaccumulatedsediment and corrosion that must be removed to ensure boiler life and reli...

Страница 31: ...tem water temperature reaches the maximum op erating temperature that the system and boiler temperature controls will allow The pressure in the boiler must never be below 12 psig Lower pressure could...

Страница 32: ...smell Before start up and periodi cally afterwards have the propane supplier check verify the odorant level Never attempt to measure gas valve outlet pressure Donotattempttomeasuretheboilergasvalveou...

Страница 33: ...sig 3 5 kPa Manual gas valve Open the main manual gas valve and check the gas piping and joints in the boiler Check for leaks if not already done following the instructions on page 18 Starting the boi...

Страница 34: ...ow the bottom of the heat band 10 seconds PRE PURGE Ignition trial ON at ignition RPM 30 of maximum 4 seconds ON ON IGN 30 Flame is sensed Stabilization period ON at ignition RPM 30 of maximum 6 secon...

Страница 35: ...4 5 Wait five minutes to clear out any gas Then smell for gas including near the floor If you smell gas Follow B in the safety information above If you don t smell gas go to the next step 6 Turn manu...

Страница 36: ...36 P N 42 9470 11 07 Copyright 2007 Mestek Inc Cast iron condensing boiler Cast iron condensing boiler Installation and operation manual Illustration 26 En francaise Starting the boiler continued 12...

Страница 37: ...p covering the flue gas sam pling hole Figure 27 The flue gas vent pipe may be hot Touching the pipe with unprotected skin could result in a severe burns 2 Slide the hose clamp off of the sample openi...

Страница 38: ...he gas pressure at the manual gas valve Gas pressure should never fall off by more than 2 inches w c 50 mm To meter gas input natural gas only Meter gas input with the high fire jumper in place Turn o...

Страница 39: ...erlysupported Remove the seven Phillips head screws securing the jacket top to the jacket sides Lift off the jacket top Leave the wire harnesses connected Move the insulation aside if necessary Adjust...

Страница 40: ...ration with prepurge then continue through a normal start cycle With the manual gas valve closed the boiler should attempt ignition three times then lockout as described below Ignition failure Make su...

Страница 41: ...er is damaged or blocked with debris consult the factory for corrective action Operating the boiler with a damaged or 13 obstructed heat exchanger could result in severe personal injury death or subst...

Страница 42: ...afterwardstopre vent contamination of other clothing NIOSH First aid procedures Eye exposure irrigate immediately Breathing fresh air Read before proceeding Failure to adhere to the following could re...

Страница 43: ...r 10 Replace the three thumbscrews and finger tighten securely 11 Turn the boiler on off switch ON Accessing the electrode assembly Turn the boiler on off switch OFF If the boiler ignition electrodes...

Страница 44: ...of the assembly and a lock washer on top 8 Disconnect the three wire harnesses at the gas valve and blower items 2 and 3 Figure 36 In this illustration the wires are not shown 9 Lifttheuppercoverplate...

Страница 45: ...45 P N 42 9470 11 07 Copyright 2007 Mestek Inc Cast iron condensing boiler Cast iron condensing boiler Installation and operation manual Maintenance continued 14 Notes...

Страница 46: ...ABS UPPER COVER 1 24 59 1091 FILTER BOX ADAPTER GASKET 1 25 70 1237 FILTER BOX ADAPTER 1 26 57 2913 1 4 20 X 1 NYLOK SC HD CAP SCREW 4 27 54 3234 1 2 FLEX GAS LINE 1 ITEM PARTNo DESCRIPTION QTY 28 70...

Страница 47: ...47 P N 42 9470 11 07 Copyright 2007 Mestek Inc Cast iron condensing boiler Cast iron condensing boiler Installation and operation manual Replacement parts continued 15...

Страница 48: ...Connectingthewiresincorrectlycancausethe transformer to be shorted out and damaged 3 wirezonevalves Youwillhavetorewireexisting3 wirezonevalves tomeettherequirementsshowninFigure A1 Movethethermostat...

Страница 49: ...replace with a circulator zoning controller or install relays that provide a 24VAC common terminal Heat Demand terminal connections using circulator relays The end switch leadsfromtherelaysmustconnect...

Страница 50: ...s shown in Figure A3 The connections to the IAR negative terminals IAR must be from the zone controller s 24VAC common terminal as shown Connecting the wires incorrectly can cause the transformer to b...

Страница 51: ...densing boiler Installation and operation manual Figure A3 Indoor Air Reset wiring to IAR terminals Heat Demand and DHW Demand using typical zone controller for either circulators or zone valves see F...

Страница 52: ...alled correctly Air purged from water system Boiler operated through several cycles Air vents checked and opened as needed Limits and interlocks tested Water piping correct and operational Metered gas...

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