PEERLESS MI SERIES Installation, Operation & Maintenance Manual
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PEERLESS MI SERIES Installation, Operation & Maintenance Manual

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MI/MIH
Boilers
Installation,
Operation
Maintenance
Manual
Pr=-EI_LESS _
CAST
IRON
BOILERS

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Summary of Contents for PEERLESS MI SERIES

  • Page 1 MI/MIH Boilers Installation, Operation Maintenance Manual Pr=-EI_LESS _ CAST IRON BOILERS...
  • Page 2 Model Available Natural or LP • Standit_g Pilot (3 9 sectior_) with 8(7_ AFUE • [-Ioneywell SmartValve ® Intermittent Ignition (3-9 section) with 82% AFUE Mid-E._f_ency Model Available in 3-6 Sections Natural • Honeywell SmartValve ® Intermittent Ignition with AFUE •...
  • Page 3 USING THIS MANUAL START-UP PROCEDURES A. INSTALLATION SEQUENCE ..... A. COMPLETING THE INSTALLATION ..B. SPECIAL ATTENTION BOXES ... B. CONTROL DESCRIPTIONS ..... C. ADJUSTMENT OF GAS PRESSURE PREINSTALLATION REGULATOR ....... A. ACCESSIBILITY CLEARANCES ..D. ADJUSTMENT OF PILOT GAS FLOW ..
  • Page 4 Follow thetnsta[lattoninstructionspro',,'_ded ill this Indicates a condition or hazard which will cause manual m the order shown The order ot these severe personal injury, death or major property mstructLons has been set m order to provide the installer damage. with a logical sequence ol steps that wdl mulmllze potenhal interferences...
  • Page 5 1.!B Read carefully, study these msh-uchons before beginning work This bo,le_ must be installed by a quahfled con_ac_or The bonler warranty can be voided _t the boder Is not installed, maintained and serviced correctly The equipment must be installed m accordance with those installation requirements of the authority having jurisdiction or, in the absence of such requirements, to the current edition of the National Fuel Gas Code, ANSI...
  • Page 6 Appliances Located in Unconfined Spaces: For installations in unconfined spaces with other 12" max than unusually tight construction, the supply of air for combustion and ventilation can usually be considered adequate. TWO AIR OPENINGS: Minimum 4. Unusually Tight Construction: BUILDING Free Area Each - For equipment located in buildings of unusually tight...
  • Page 7 ii-i Where communicating with the outdoors through horizontal ducts, size each opening 12"maxl with a minimum free area of one (1) square _t [jT TWO AIR OPENINGS: inch per 2000 Btu/hr of total input rating of all equipment in the enclosure. See Figure 4.
  • Page 8 l_.]llF'4T_'i:i_IrJ_ Provide a sound, level foundahon Locate boiler Separate the wood shppmg pallet from the boiler base by removing two (2) hold-down bolts at each near to the chmney or outside v_ali as possLble end of the boder base cennahzed v_Jth respect to the heahng system...
  • Page 9 3. WATER PIPING AND CONTROLS Supply Piping: "-I [:{=]ll_;l[.-llJ'J_Jl_'m_,]l_ll] I;l:i[IJ;|k' Pipe the supply to the I i/2 NPT supply tapping the top and rear of the boiler. 1. Size the supply and return to suit the system. A t_pical piping arrangement is shown in Figure 5.
  • Page 10 Install this boiler so that the gas ignition system components are protected from water (dripping, H ECj VAILVEI spraying, etc ) during appliance operation SUPPLY service (circulator replacement, condensate trap, LINE control replacements, etc ) If this boiler and distribution system is used in conjunction...
  • Page 11 loll I'JI_IL'_[_ l;:[e];l v_[o]L'ql:lm] F .._'_"-]I i :hVj_ See Figures 9 and 10 for basic zoned system layouts. Run each zone pipe down then up to zone prevent air accumulation in piping If required, provide means to isolate and drain each zone separately,...
  • Page 12 I:l;f:l:_,l: I;J;{e]i:_l,]i[o]_ For new or existing systems that must be freeze- Consult the tank manufacturer's instructions protected: specific information relating to tank installation Size the expansion tank for the required system volume and capacity. See Table 8 in Section 10 for boiler water capacity.
  • Page 13 Lt/:1_/Jl_[,':t 4; VENTING |_,!1 h,'_ii::[d; f_,_ II o] ;f_,_;Iil -"[o_o] g The MIiMIH boiler is equipped with a built in draft hood This device is designed Do not use one vent damper to control two or more heating appliances. See Figure 12. provide for the ready escape of flue gases from the boiler in the event of no draft.
  • Page 14 Before connection of joints, inspect the vent pipe _o,,N kVJ :h,_ / uI:J I:,,] h ,1 [€_V_*l _._ I D][o,]-" I hVj h ._ I_" interior for foreign objects such as tools, equipment, rags, etc. and remove if present. 1. Install vent piping in accordance with Part 7.
  • Page 15 Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat appliance will operate continuously. At the time of removal of an existing boiler, follow these Test for spillage at the draft hood relief opening after steps with each appliance remaining connected to the 5 minutes of main burner operation.
  • Page 16 SLZeand w,-_tal[the gas supply plpmg properly in SERVICE ordeT to provide a supply of gas sufflc,ent to meet the maximum demand wlthout undue loss of pressure between the meter and the boder Determine the volume of gas to be provlded to the -----JAC K ET boller in cublc feet per hour To obtain this value,...
  • Page 17 [tl :I-2 [_igl_tl Table MI Boiler- Natural Model Input (Cubic F_Hr) MI 03 MI-04 MI-05 MI Ofi MI 07 M] 0_ 227 5 MI 09 Based on i000 Btu/Cubic Ft Table MI Boiler - LP Gas Model Input (Cubic FI/Hr) Ml-03 MI 04 MI-05...
  • Page 18 6.*ELECTRICAL Install all elechlcal wrong m accoldance wLth the National Elecmcal Code local requirements This umt when installed must be electrically grounded in accordance with the requirements of the authority having JUrlSdtctton or, in the absence of such requirements, with the current edlbon of the National Electrical Code, ANSI/NFPA 70.
  • Page 19 CONNECTION DIAGRAM LADDER OIAGRAM 115/60/i THERMOSTAT (BY OTHERS) pOV_ER SUPPLy ..LB148£ C_81NATIO_i DISCONNECT " r..FUSE{) DISCONNECT SER_CE NSTALLF_ _ 60 S_TCH S_4TCH pR_MAR Y SUPgLY SER_C£ TR ANS_Oei4 ER THESE]_TO- - SZCONDARY 0{,. !B.i l L2T22_ _ERMO¢OUpI "_ CONNECTOR rifle RelJ_e,4J T...
  • Page 20 " i:! ! ;["_e_2_ CONN£CTI_ DIAGR_ L*_[R [_AGRAM 11p_o_45_LR_ 1 ¢1 FUSED D'S_EC _5_ T_I _ ..HIGH U_IIT LAD{)_R DIAGRAM L[G[NO 1_+41T_ __AM_ ND I 120V INT_RN_L I_IR1NG _P PILOT t20v [XT_RHAL_RIN_ _BNC)] ---- iN.HAL _4RIN_ [XTERNAL _I_IN_ .._>iLOT _RIN@ LO14_...
  • Page 21 START APPLY24 TO APPLIANCE I THERMOSTAT CALLS FOR HEAT FIVE-MINUTEDELAY RETRY • WAIT FOR FLAME SIGNAL TO DISAPPEAR • PILOT VALVE/IGNITER FLAME SIGNAL DETECTED_ REMAIN OFF I INTERNAL CHECK OKAY? I NO _YES TRIAL THREE-SECOND FAILURE RECYCLE FLAME DELAY IGNITION •...
  • Page 22 I15V/60HZ (HOT} TO MAIN DISCONNECT ZONE I ZONE 2 ZONE 3 g_TCH _× _c× • AOOASTAT dUMPER FACTORY INSTALLED-- RELAY (HONEYWELL LS148E) ZONE ZONE ZONE VALVE VALVE VALVE WIRING MUST COMPLY WITH APPLICABLE CODEg• OROLNANCES PEGULATIONS WIRE REMAINDER OF AQUASTAT RELAY IN ACCORDANC_ WITH...
  • Page 23 7. START-UP PRO_GI RES + Connect a manometer to the gas val_,e on the valve f-'l [a"[o) L'+I "JII:IIIIh'_ [€"li l -"I=IIh';F-"+l Ir-"1 ! l;_li to] L _ outlet (ga, manifold) Use the 1 8 NPT tappLng prowded Cont£rm that all water gas and electnclly are turned off Confirm that the gas supply pressure to the boiler Rs above the mlmmum and below the maximum...
  • Page 24 !UUUL '_ PILOI _EAD THERMOCOUPLE LEAD SECTION A Figure 22: Gas Valve, Manifold and Burner Assembly - Standing Pilot (Continuous Ignition) -GAS VALVE PILOT TUBING ORIFICE SECTION A A MAN,FOLD A "_ _TEST TAPPING Figure Gas Valve, Manifold and Burner Assembly - Intermittent Ignition GAB PRESSURE...
  • Page 25 FOR YOUR SAFETY READ BEFORE OPERATING exactly, I WARNING: follow these instructions a fire or explosion result causing property damage, personal injury, or toss of life. This appliance is equipped with an ignition device • If you cannot reach your gas supplier, call the fire which automatically lights the pilot.
  • Page 26 I[,-']t-'; • ,'_ • "] FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion result causing property damage, personal injury or loss of life. pilot • If you cannot reach your gas supplier, call the A.
  • Page 27 IsJ V-ll_i ilJ-*t iLhl_l i [*]; L :JI I[*]t 11[€1r-"!.:1 I_ K*PA :]q '=*,[*]=_//;{*]n Im]:_'[*_;]lM/[*]_: To maximize thermocouple life, particularly on natural See Figure 16 in Section 6 (Electrical) for locations of gas installations with gas supply pressures above 9" these devices.
  • Page 28 Table Meter Conversion - Natural iv) Observe boiler operation through one Burner inputs in Btu/hr for various meter timings and complete cycle heat values. (Tables based on 2 cubic feet of gas through meter). b. Intermittent Ignition System: i) Turn gas supply off Time that Heat Value of Gas meter is...
  • Page 29 When servicing or replacing items that communicate with the bonier water, be certain that" • There is no pressure on the boLler In the event of a shut-down caused by a pLlot outage • The boiler us not hot. actLon of the blocked vent shut-ott sw_tch or flame...
  • Page 30 In j ;[.luJ :_! _; [oD_ ni 1 _L_ Table Boiler Troubleshooting Guide Burners not functioning ] No power I Check line voltage wiring and fuses. 2. Limit (aquastat) not working 2 Check wiring and contacts, relay, temperature setting. Clean and adjust as necessary 3.
  • Page 31 INSET A END VIEW OF 24 VOLT CONTROL THERMOSTAT HARNESS CONNECTOR START • ASSURE GAS VALVE SWITCH VOLTS iN "ON" POSITION • DISCONNECT SYSTEM CONTROL 24 VOLT 24 VOLT COMMO HARNESS VOLTS I • TURN OFF GAS SUPPLY • SET THERMOSTAT TO CALL CHECK FOR DAMAGED OR MISSING...
  • Page 32 h',!_,!1_i i 4 _<'_!_,l 7[.I: 9. MAINTENANce. Smell around the apphance alea for gas It you smell l-*! [€l _ L'I_IP.t. gas. follow the procedure listed m the LLghtJng, Operatlng Instructions m Section Disconnect this boiler from the gas supply piping durung any pressure...
  • Page 33 OUTE BL JL //_\ [)ARK IN CC' OR When servicing or replacing components, be absolutely certain that the following conditions are met: • Water, gas and electricity are off. • The boiler is at room temperature. • There is no pressure in the boiler. 1.
  • Page 34 10. BOILER DIMENSIONS 8 RA !N GS i rllt_ _,111 FLLIEF TEtd_" E _ - [iIPE I_IFE ,L_= LIrL Figure 30: Boiler Views Table 7: Series MI/MIH Boiler Dimensions 111:i I 1i,.I1_ I a_ I I: I :[l] I I1_1:i 1] I_ I =1_._1 [l]_p Jacket Left of Jacket Rear of Jacket...
  • Page 35 ]3 ;;_ EPAI R_PABTS REPAIR PARTS SERIES MI/MIH GAS BOILER Repair parts are available from your installer or by contacting Peerless Heater Company, Boyertown, PA 19512-1021. Use the figures and tables on pages 32-41 to assist in ordering parts. Note Remember to include boiler model number and serial number when ordenng parts Figure...
  • Page 36 Table Base/Combustible Floor 91518 91883 91897 91909 93561 93573 81036 Base Assembly 51771 51771 51771 51771 51771 51771 81771 Observation Cover Door 50867 50867 50867 50867 50867 50867 50867 Base Blanket Seal Specify length 90700 90701 90702 90703 90704 90705 90706 Combustible Floor Pan Assembly...
  • Page 37 ,,6) _\\ Figure 32: Manifold Figure 33: Gas Valve and Pilot - Standing Pilot (Continuous Ignition) Table 10: Manifold/Gas Train (MI - Standing Pilot) Steel Burner ! Specify quantity • 51263 51263 51263 6 _Steel Burner w/Pilot Clip I per boiler 51263 51263 Manifold...
  • Page 38 Figure 34: Gas Valve and Pilot - Intermittent ignition Table 11: Manifold/Gas Train (MI - Intermittent Ignition) Steel Burner Speci_ quanfl_ 51537 51537 51537 51537 51537 51537 lperbo er i 51539i51539 51539i51539 51539!51539 i 51539 Steel Burner w/Pilot Clip : s0979 50980 s09 , 50956 Gas Manifold...
  • Page 39 Figure 35: Block/Draft Hood...
  • Page 40 Table 13A: Block/Draft Hood 91280 Block Assembly Flue CollecloriDraft Hood 90511 Flue CollectorlDraft Hood 50866 50866 _ Flue Collector Blanket Seal Specify length Table 13B: Flue Baffles for MIH Only Flue Baffle - 4" 51583 1 per flue (specify qty) Flue Baffle - 8"...
  • Page 41 Figure 36: Jacket...
  • Page 42 Table Jacket 90445 90446 90447 90448 90449 90450 90451 ,Jacket Assembly Complete jacket* with insulation and screws *Complete Jacket Consists of: Left Side Panel Right Side Panel Rear Panel Top Panel Inner Front Panel Baffle Panel Removable Front Panel Upper Front Panel...
  • Page 43 I_t"-Jl_I_ 1;t I=a_l_-'] Figure 37: Controls/Circulator/Vent Damper...
  • Page 44 Table Controls/Circulator/Vent Damper 50736 50736 50736 50735 50736 50736 50736 Circulator w/Flanges. Gaskets and Hardware* 99236 99236 99236 99236 99236 99236 99236 1%" x 2_//' Nipple* 1%" Tee* 99967 99967 99967 99967 99967 99967 99967 11/4 " x 4" Nipple* 1539 1539 1539...
  • Page 45 Series MI/MIH Boilers Installation, Operation Maintenance Manual TO THE INSTALLER: This manual is the property of the owner and must be affixed near the boiler for future reference. TO THE OWNER: This boiler should inspected annually Qualified Service Agency. HI Division ASME of gama PEr-I_LESS...

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