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Summary of Contents for HWX 70-195

Page 1: ...illcause contamination of the burner resulting in possible sexere personal injuu death or substantial property damage The boiler can only be operated with a dust fi eeair supply Followthe instruction...

Page 2: ...ONTROL DESCRIPTIONS 24 C ADJUSTMENT OF GAS PRESSURE REGULATOR 24 D ADJUSTMENT OF PILOT GAS FLOW 24 E CHECKING BURNER INPUT 25 E CHECK OUT PROCEDURE 25 A SHUT DOWN CAUSED BY PILOT OUTAGE BLOCKED VENT S...

Page 3: ...is boiler on carpeting Boiler installation on carpeting is a fire hazard Install this boiler on non combustible flooring or use a combustible floor pan to install this boiler on other non carpeted flo...

Page 4: ...ing spaces on different floors Provide one or more permanent openings communicating with additional spaces that have a total minimum free area of 2 in2 per 1000 Btu hr 44 cm 2 per 1000 W of total inpu...

Page 5: ...nd 6 inches 150 mm from the front of the appliance See Figure 1 6 for this arrangement Figure 1 6 Air Openings All Air from Outdoors through One Opening 5 Combination Indoor and Outdoor Combustion Air...

Page 6: ...c Ducts shall serve a single space d Ducts shall not serve both upper and lower combustion air openings where both such openings are used The separation between ducts serving upper and lower combustio...

Page 7: ...valve nipples and tee to the 1 1 4 NPT return tapping as shown in Figure 3 1 3 4 Supply Piping Pipe the supply to the 1 1 2 NPT supply tapping at the top and rear of the boiler When system return wate...

Page 8: ...boiler is installed above radiation level provide a low water cutoff device either as a part of the boiler or at the time of boiler installation l JI l 9 _ll i6 dl l_lll_lll Lv _llvA 1 Locate safety...

Page 9: ...ZONE ZONE 1 5 2 1 SYSTEM ZONE ZONE 2 3 ZONE j j i T SYSTEM BALANCING i _f co_ _c_ 0o _0 _o t CHECK TO RETURN TO BYPASS VALVE _ SUPPLY CITY WATER _ _ _C LA_o_J L_ __x_ o_ _A_ FROM BYPASS Figure 3 5 Zon...

Page 10: ...olutions of up to 50 by volume with water Ethylene glycol is toxic and can attack gaskets and seals used in hydronic systems 1 2 3 Glycol in hydronic applications is specially formulated for this purp...

Page 11: ...ose to the boiler See the Vent Damper Installation Instructions below Figure 4 1 DAMPER iNCORRECT CORRECT Venting Multiple Appliances 1 2 3 4 Do not use one vent damper to control two or more heating...

Page 12: ...nting system are not in operation a Seal any unused openings in the common venting system b Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage...

Page 13: ...de requires such a valve a suggested location is shown in Figure 5 1 Use a pipe joint sealing compound that is resistant to the action of liquefied petroleum gas A non resistant compound may lose seal...

Page 14: ...dinary number of fittings is required Pipe Length in 3 4 1 1 1 4 1 1 2 Feet Pipe Pipe Pipe Pipe Meters 1013 0 27817 9 520114 7 1050129 7 1600145 3 2016 1 19015 4 35019 9 730120 7 1100131 1 3019 1 1521...

Page 15: ...he thermostat heat anticipator to 0 2 Amp 2 3 4 For proper location of controls and accessories refer to Figure 6 1 and Section 11 See the attached control sheets for specific details regarding the in...

Page 16: ..._ _lJ l_ _ l l Ee d l _11 e _l 1 Standing Pilot See Figure 6 2 above a The vent damper is continuously powered On a call for heat limit relay R is energized which energizes the circulator when used t...

Page 17: ...ELEMENT SEN OR _ RO hb FI LO T S20v INTER L lAIN TLBI 20 EXTEaNAL _IRIN 24 I TEkN L _IklNG 24v EXTERNAL qRING PILOT _ IRI C o L8i48 TE _ I1 SL Ul _ 1 i Figure 6 3 Wiring and Connection Diagram Intermi...

Page 18: ...LOT VALVE IGNITER REMAIN OFF THREE SECOND FLAME 1 FAILURE RECYCLE DELAY PILOT VALVE CLOSES iGNITER OFF FIVE MINUTE RETRY I I DELAY I END f YES _ i I HEAT ENDS FIVE TIMES iN ONE _ CALL FOR NEAT i MAIN...

Page 19: ...with Zone Valves 120V BOHZ L1 HOT TO MAIN DISCONNECT L2 SWITCH JUMPER FACTORY iNSTALLED_ _ _L _GND ZONE 1 E OSTAT r_7 I I r_ AQUASTAT R EL_ Y HONEYWB_L L8148E BOILER CIRCULATOR ZONE I L L q __ i i i i...

Page 20: ...ion Check joints and fittings throughout the system for leaks If leaks are found drain the system and repair as required 8 9 10 11 12 13 Connect a manometer to the gas valve on the valve outlet gas ma...

Page 21: ...nding Pilot Continuous Ignition STEEL _ B U R N E R _ 0 S VALVE _IL T ORIFI E ILOT TU _INI d _N EL TI A A Figure 7 2 Gas Valve Manifold and Burner Assembly Intermittent Ignition INLET _ I ESSLJ k_E T...

Page 22: ...the appliance and to replace any part of the control system and any gas control which has been under water OPERATING iNSTRUCTiONS 1 STOP Read the safety information above on this 5 label 2 Set the th...

Page 23: ...knob clockwise _ to OFF Gas Control Knob shown in OFF Red Reset Button position _ 6 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B...

Page 24: ...gas pressure turn adjusting screw of gas pressure regulator counterclockwise to decrease pressure clockwise to increase pressure Refer to Figure 7 3 for location of gas pressure regulator Replace the...

Page 25: ...02 22 75 21 62 20 59 19 65 18 80 18 01 17 29 39 12 88 57 73 81 63 26 55 35 4920 44 28 40 26 36 90 34 06 31 63 29 52 27 68 26 05 24 60 23 31 22 14 21 09 20 13 19 25 18 45 17 71 _ I H llJ I 1 T IH 11 11...

Page 26: ...n cause severe damage to the boiler though oxygen corrosion pitting 5 6 8 9 Check the expansion tank and automatic fill valve if used to confirm that they are operating correctly If either of these co...

Page 27: ...dividuals must follow all applicable codes and regulations in repair of any boiler problems When servicing or replacing items that communicate with the boiler water be certain that There is no pressur...

Page 28: ...ary 3 Replace switch Locate cause and correct 4 Reset blocked vent switch Locate cause and correct 5 Start boiler using Lighting Operating Instructions 6 Check any gas valves in the line 7 Check clean...

Page 29: ...PRESSURE HARNESS COMMON ROT CHECK FOR DAMAGED OR MiSSiNG TERMINALS iN CONNECTOR iNSET B TERMI___ UNPLUG PILOT BURNER CABLE MEASURE VOLTAGE AT GAS VALVE HSI ELEMENT OUTPUT SEE iNSET B 24V NOMINAL YES R...

Page 30: ...ovide adequate ventilation Wear a NIOSH MSHA approved respirator Wear long sleeved loose fitting clothing and gloves to prevent skin contact Wear eye goggles Minimize airborne dust prior to handling a...

Page 31: ...temperature and pressure on the combination gauge located on the left side of the boiler Boiler pressure should never be higher than 5 psi 35 kPa below the rating shown on the safety relief valve 25...

Page 32: ...er movement Remove or replace as necessary g When replacing the flue collector draft hood be certain that the blanket seal between the flue collector and top section makes a tight seal to prevent leak...

Page 33: ...6 152 175 225 s 575 26s s 676 31S s 797 115 16 287 211s 16 554 6 152 195 26 660 26s s 676 31S s 797 13 330 211s 16 554 7 178 Table 10 2 Boiler Ratings I o llll l N I _1 h_ e 4 Boiler Size Input Heatin...

Page 34: ...iler model number and serial number when ordering parts Figure 11 1 Base Combustible Floor Pan Table 11 1 Base Combustible Floor Pan 1 Base Assembly 2 Observation Cover Door 3 Base Blanket Seal Specif...

Page 35: ...ce Spud 56 50899 50899 50899 50899 elevation specify qty LP Gas 0 2000 ft 0 610 m Orifice Spud 57 50900 elevation specify qty 9 Honeywell VR8200A2116 Gas Valve Natural Gas 50581 50581 50581 Honeywell...

Page 36: ...0 ft 0 610 m Orifice Spud 49 50895 elevation specify qty _ LP Gas 0 2000 ft 0 610 m Orifice Spud 56 50899 50899 50899 elevation specify qty LP Gas 0 2000 ft 0 610 m Orifice Spud 57 50900 elevation spe...

Page 37: ...INSTALLATION AND OPERATING INSTRUCTIONS Figure 11 4 Block Draft Hood Table 11 4a Block Draft Hood Block Assembly Flue Collector Draft Hood Flue Collector Blanket Seal N A N A Specify length 37...

Page 38: ...11 5 Jacket 16 16 16 16 16 16 16 Jacket Assembly Complete Jacket Consists of Left Side Panel Right Side Panel Rear Panel Top Upper Front Panel Inner Front Baffle Panel Removable Front Panel Complete J...

Page 39: ...e 30 psi Conbraco 10 408 05 50501 50501 50501 50501 50501 Safety Relief Valve 50 psi Watts 350 99950 99950 99950 99950 99950 26 Flame Roll Out Safety Shut Off Switch 51587 51587 51587 51587 51587 27 B...

Page 40: ...m _A _ _ MESTEK COMPANY IN UNITED STATES 260 NORTH ELM ST WESTFIELD MA 01085 413 564 5515 FAX 413 568 9613 IN CANADA 7555 TRANMERE DRIVE MISSISSAUGA ONT L5S 1L4 905 672 2991 FAX 905 672 2883 www hydro...

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