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LIFETIME LIMITED WARRANTY

Residential Cast Iron Water Boilers

First Through Tenth Year
The “Manufacturer” warrants to the original owner at the original installation site that the cast iron sections of
the Residential Cast Iron Water Boilers (the “Product”) will be free from defects in material or workmanship for
ten (10) years from the date of installation. If upon examination by the Manufacturer the Product is shown to
have a defect in material or workmanship during the warranty period, the Manufacturer will repair or replace,
at its option, that part of the Product which is shown to be defective.

Eleventh Year and Above
The Manufacturer warrants that the cast iron sections of its residential cast iron water boilers will remain free 
of defects in material or workmanship under normal usage for the lifetime of the original owner at the original
installation site. Should any sections be found to be defective, the Manufacturer will repair or replace, at its
option, the original cast iron sections upon the payment of a proportionate charge based on the time the
defective section was in service. The proportionate charge will be equal to the appropriate percentage of the
trade price of the section at the time the warranty claim is made, determined as follows:

Year  11

12

13

14

15

16

17

18

19 20 21 22

23 24 25 

Above

% of
Trade

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

Price

This limited warranty does not apply:
(a) if the Product has been subjected to misuse or neglect, has been accidentally or intentionally damaged, 

has not been installed, maintained or operated in accordance with the furnished written instructions, or has
been altered or modified in any way.

(b) to any expenses, including labor or material, incurred during removal or reinstallation of the Product or 

parts thereof.

(c)  to any other cast iron parts of the boiler.
(d) to burners, jackets, controls, and other auxiliary equipment furnished by the Manufacturer, but

manufactured by others. Any warranties for such items shall be limited to those warranties offered by the
original equipment manufacturer.

(e)  to damage as a result of settlement, distortion, collapse, or cracking of any foundation area, beams or 

pipes surrounding the Product.

(f)  to any workmanship of any installer of the Product; or to Products installed outside the continental United

States or Canada.

This limited warranty is conditional upon:
(a) shipment, to the Manufacturer, of that part of the Product thought to be defective. Goods can only be

returned with prior written approval from the Manufacturer. All returns must be freight prepaid.

(b) determination, in the reasonable opinion of the Manufacturer, that there exists a defect in material or

workmanship

(c)  the residential water boiler having been installed in a single–family or two–family residential dwelling.

Repair or replacement of any part under this Limited Warranty shall not extend the duration of the warranty
with respect to such repaired or replaced part beyond the stated warranty period.

THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EITHER EXPRESS OR IMPLIED,
AND ALL SUCH OTHER WARRANTIES, INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES 
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE  HEREBY DISCLAIMED 
AND EXCLUDED FROM THIS LIMITED WARRANTY. IN NO EVENT SHALL THE MANUFACTURER BE 
LIABLE IN ANY WAY FOR ANY CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES  OF ANY
NATURE  WHATSOEVER, OR FOR ANY AMOUNTS IN EXCESS OF THE SELLING PRICE OF THE
PRODUCT OR ANY PARTS THEREOF FOUND TO BE DEFECTIVE. THIS LIMITED WARRANTY GIVES 
THE ORIGINAL OWNER OF THE PRODUCT SPECIFIC LEGAL RIGHTS. YOU MAY ALSO HAVE OTHER
RIGHTS WHICH MAY VARY BY EACH JURISDICTION.

IN CANADA: 

7555 TRANMERE DRIVE  

MISSISSAUGA, ONT. L5S 1L4 

TEL (905) 670-5888  
FAX (905) 670-5782

IN UNITED STATES: 

260 NORTH ELM ST.  

WESTFIELD, MA 01085  

TEL (413) 564-5515  
FAX (413) 568-9613

www.hydrotherm.com

Summary of Contents for HVX 175

Page 1: ...ause contamination of theburner resultinginpossibleseverepersonalinjury deathorsubstantialpropertydamage Theboilercanonlybeoperatedwithadust free air supply Follow the instruction manual procedures to...

Page 2: ...REMOVAL FROM COMMON VENTING SYSTEM 17 5 GAS PIPING 18 6 ELECTRICAL 20 A WIRING 20 B ZONED SYSTEM WIRING 20 C CONTROLS 20 D BOILER SEQUENCE OF OPERATION 22 7 START UP PROCEDURES 22 A COMPLETING THE IN...

Page 3: ...will see special attention boxes intended to supplement the instructions and make special notice of potential hazards Indicates special attention is needed but not directly related to potential person...

Page 4: ...e for Controls and Safety Devices for Automatically Fired Boilers ANSI ASME CSD 1 NOTICE Do not install this boiler on carpeting Boiler installation on carpeting is a fire hazard Install this boiler o...

Page 5: ...the air infiltration rate of a structure is known the minimum required volume of indoor air for the Boiler and other fan assisted appliances shall be determined as follows where Ifan Input of the fan...

Page 6: ...orizontal ducts each opening shall have a minimum free area of 1 in2 per 2000 Btu hr 22 cm2 per 2000 W of total rated input for all appliances in the space See Figure 1 5 b One Permanent Opening Metho...

Page 7: ...r grille is known it shall be used in calculating the opening size required to provide the free area specified ii Where the free area through a louver or grille is not known it shall be assumed that w...

Page 8: ...E DETECTORS Each carbon monoxide detector shall comply with NFPA 720 and be ANSI UL 2034 listed and IAS certified SIGNAGE A metal or plastic identification plate shall be permanently mounted to the ex...

Page 9: ...ith a drain valve at the 1 1 4 NPT return tapping near the bottom of the left section Pipe the return to the inlet connection of the circulator 3 Supply Piping Pipe the supply to the 1 1 2 NPT supply...

Page 10: ...the boiler water during the cooling cycle 9 If this 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 B S...

Page 11: ...5 and 3 6 for basic zoned system layouts 2 Run each zone pipe down then up to zone to prevent air accumulation in piping 3 If required provide means to isolate and drain each zone separately Figure 3...

Page 12: ...ZE PROTECTION For new or existing systems that must be freeze protected 1 Glycol in hydronic applications is specially formulated for this purpose It includes inhibitors which prevent the glycol from...

Page 13: ...er to be provided by installer 5 Single wall vent pipe should be furnished between increaser and chimney If the vent connector shall be located in or pass through a cold area the vent connector shall...

Page 14: ...u une m thode quivalente afin de l emp cher de s affaisser Ne pas visser dans le tuyau de ventilation Horizontal portions of the vent pipe must be supported at intervals no greater than four feet to p...

Page 15: ...ed in Equivalent Vent Length 7 Refer to Figure 4 2 for vertical offset option The maximum offset is 5 feet With the exception of the last 90 elbow which serves as the vent terminal the additional elbo...

Page 16: ...tal portions of the vent pipe shall slope upward from the boiler towards the vertical vent not less than 1 4 per foot 21 mm per meter Parties horizontales de l vent doit pente ascendante de la chaudi...

Page 17: ...es registres de foyers d Place in operation the appliance being inspected Follow the lighting instructions Adjust thermostat so appliance will operate continuously Mettre en service l appareil inspect...

Page 18: ...quires such a valve a suggested location is shown in Figure 5 1 7 Check piping for leaks Use an approved gas detector a non corrosive leak detection fluid or other leak detection method If leaks are f...

Page 19: ...140 165 28 42 56 66 0 8 1 2 1 6 1 9 Pipe Length in Feet Meters 3 4 Pipe 1 Pipe 11 4 Pipe 11 2 Pipe 10 3 0 20 6 1 30 9 1 40 12 2 50 15 2 60 18 3 278 7 9 190 5 4 152 4 3 130 3 7 115 3 3 105 3 0 520 14 7...

Page 20: ...arness as required 6 ELECTRICAL This unit when installed must be electrically grounded in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements w...

Page 21: ...ELECTRICAL 21 Figure 6 2 Wiring Diagram Spark Ignited Pilot Becket 7600 Limit Control Figure 6 3 Wiring Diagram Spark Ignited Pilot Hydrolevel 3200 Limit control...

Page 22: ...instructions as necessary 5 Fill the boiler and system with water making certain to vent all air from all points in the system To check water level in the system open and close each vent in the system...

Page 23: ...START UP PROCEDURES 23 Figure 7 1 Gas Valve Manifold and Burner Assembly Intermittent Ignition Figure 7 2 Valve Tapping and Adjustment Screw Locations...

Page 24: ...START UP PROCEDURES Figure 7 3 Operating Instructions 24...

Page 25: ...25 Figure 7 4 Operating Instructions START UP PROCEDURES...

Page 26: ...as manifold set manifold pressure as follows for various gases a Natural Gas 3 5 W C 0 9 kPa b LP Gas 10 0 W C 2 5 kPa 2 To adjust gas pressure turn adjusting screw of gas pressure regulator countercl...

Page 27: ...66 cubic meters of gas through the meter Burner inputs in Btu hr for various meter timings and heating values Tables based on 2 cubic feet of gas through the meter Time that meter is read sec Heat Val...

Page 28: ...allowing fresh water to enter the system 6 Do not allow the system controls to subject the boiler to excessively low water temperatures which would cause condensation of flue gases and corrosion of t...

Page 29: ...n pressure as shown in Figure 8 1 Note that as boiler operates suction pressure will decrease Measure after 15 minutes of boiler operation TROUBLESHOOTING 8 TROUBLESHOOTING Should overheating occur or...

Page 30: ...2 Check and correct wiring Flashback or burning at orifice spuds 1 Manifold gas pressure too low 2 Improperly sized drilled orifice spuds 3 Leaking gas valve 4 Burrs on orifice 5 Low supply gas pressu...

Page 31: ...OES INTO LOCKOUT OR RETRY DELAY RESET THE CALL FOR HEAT CHECK CONTINUITY OF IGNITION CABLE AND GROUND WIRE CLEAN FLAME ROD CHECK ELECTRICAL CONNECTIONS BETWEEN FLAME ROD AND MODULE CHECK FOR CRACKED C...

Page 32: ...te 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 and removal b...

Page 33: ...n 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 psig 172 kPa maximum for a 30 psig 207 kPa...

Page 34: ...lector and top section makes a tight seal to prevent leakage of the products of combustion h Re install the top jacket panel and vent pipe i Re install burners 2 Inspect entire venting system for corr...

Page 35: ...Annual Fuel Utilization Efficiency AFUE ratings are based on U S Government test Before purchasing this appliance read important information about its estimated annual energy consumptions or energy e...

Page 36: ...1 Block Base Floor Pan Jacket Flue Collector REPAIR PARTS Use the figures and tables on pages 37 38 to assist in ordering parts Note Remember to include boiler model number and serial number when orde...

Page 37: ...Burner 165 9 51537 7 Gas Manifold 70 50978 Gas Manifold 105 50979 Gas Manifold 140 50980 Gas Manifold 165 50981 8 Orifice Spud 48 Natural Gas 70 4 50894 Orifice Spud 48 Natural Gas 105 6 50894 Orifice...

Page 38: ...0558 Ignition Control Spark Honeywell S8610M 1003 50672 Cleveland NS2 1104 03 Switch 1 68 W C Set Point Pink 50038 Cleveland NS2 1104 02 Switch 1 47 W C Set Point Purple 50037 Cleveland NS2 1104 01 Sw...

Page 39: ...39...

Page 40: ...e boiler d to burners jackets controls and other auxiliary equipment furnished by the Manufacturer but manufactured by others Any warranties for such items shall be limited to those warranties offered...

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