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120 Braley Rd. P.O. Box 429 

                               East Freetown, MA 02717-0429                                                www.htproducts.com 

 

                                                                                        LP-436 REV. 3.21.14 

 

Commercial Gas-Fired 

Water Heater 

 
 
 

 
 
 

INSTALLATION

 

 
 
 
 

START-UP 

 
 
 
 

MAINTENANCE 

 
 
 
 

PARTS 

 
 
 

Models 

 

CG125N73, CG150N73, CG199N73  

CG199N73X*, CG250N65, CG300N65 

 

*A Suffix of “X” Denotes Model Set for Low NOx Operation 

 

 

This manual must be used by a qualified installer/service technician. Read all instructions in this manual before installing. Perform steps 
in the given order. Failure to comply could result in substantial property damage, severe personal injury, or death.  
 

NOTICE:

 

HTP reserves the right to make product changes or updates without notice and will not be held liable for typographical errors 

in literature. 
 
The surfaces of these products contacted by consumable water contain less than 0.25% lead by weight, as required by the Safe 
Drinking Water Act, Section 1417. 
 

NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE. 

For your records, write the model and serial number here: MODEL #_____________ Serial #_________________ 

Содержание CG125N73

Страница 1: ...ling Perform steps in the given order Failure to comply could result in substantial property damage severe personal injury or death NOTICE HTP reserves the right to make product changes or updates wit...

Страница 2: ...CINITY OF THIS OR ANY OTHER APPLIANCE WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch Do not use any phone in your building Immediately call your gas s...

Страница 3: ...ION used without the safety alert symbol indicates a potentially hazardous situation which if not avoided may result in property damage FOREWORD This manual is intended to be used in conjunction with...

Страница 4: ...anadian Standards Association 5060 Spectrum Way Suite 100 Mississauga Ontario Canada L4W 5N6 Code for the installation of Heat Producing Appliances latest version from American Insurance Association 8...

Страница 5: ...quality professionally analyzed to determine whether it is necessary to install a water softener It is important that the water chemistry on both the domestic hot water and central heating sides are...

Страница 6: ...pressed in parts per million ppm Water with a high TDS concentration will greatly accelerate lime and scale formation in the hot water system Most high TDS concentrations precipitate out of the water...

Страница 7: ...ll Water Heaters Shipped to Operate on Natural Gas A suffix of X denotes model set for Low NOx operation Location This water heater should be located in a clean dry location as close as possible to th...

Страница 8: ...idth and depth of the water heater Should the water heater be installed in an alcove or closet the entire floor area must be covered by the panel The panel must be strong enough to carry the weight of...

Страница 9: ...cating directly with the outdoors each opening shall have a minimum free area of one square inch per 4 000 BTU H of the total input rating of all gas appliances in the enclosure See Figure 3 b When co...

Страница 10: ...box attached to this water heater Before installing the flue damper drafthood assembly verify that it is the correct model for this water heater the CG125N73 uses a 5 flue damper all other 73 gallon...

Страница 11: ...s Venting systems made with single wall piping cannot pass through any attic inside wall crawl space confined space or any floor The vent piping must be accessible for inspection cleaning and replacem...

Страница 12: ...ontally L Clearance above paved sidewalk or paved driveway located on public property 7 2 13 m M Clearance under veranda porch deck or balcony 12 Table 2 Power Vent Kit Installation Requirements 1 In...

Страница 13: ...ine DO NOT remove the relief valve Make sure the relief valve is properly sized for the water heater If the relief valve continuously discharges water call a qualified service technician to correct th...

Страница 14: ...h a suitable sealing compound that is approved for natural and propane gases It is mandatory that a readily accessible manual shut off valve be installed in the gas supply line The gas supply manual s...

Страница 15: ...led in the system This will prevent weeping from the water heater relief valve and premature failure of the heater due to expansion of water during the heating cycle Before acquisition of a water heat...

Страница 16: ...heater into operation The voltage needs to be set at 24 Volts This can be done by moving the red voltage jumper on the 24V prongs For detailed instructions on how to adjust the power vent settings co...

Страница 17: ...17 LP 436 REV 3 21 14...

Страница 18: ...18 LP 436 REV 3 21 14...

Страница 19: ...drain Have all the piping connections been properly installed and are they leak free Is the water heater full of water Gas Connections Is the gas supplied to the water heater the same type indicated...

Страница 20: ...isk of scalding it is recommended that the dial be adjusted to the lowest setting that produces an acceptable hot water supply The dial may be set from 100 o F to 180 o F 38 o C to 82 o C When hot wat...

Страница 21: ...he water heater refer to Filling the Water Heater and turn on the gas refer to Lighting Instructions Temperature and Pressure Relief Valve Manually operate the temperature and pressure relief valve at...

Страница 22: ...stem Vacation If you are planning a vacation or other prolonged absence it is highly recommended to shut off the gas supply and the cold water supply to the water heater This will save energy protect...

Страница 23: ...and motor 8800P 016 2 Vent damper motor 8800P 012 3 Aquastat with ECO 8800P 002 4 Fuse 2 Amps 8800P 005 5 Transformer 8800P 003 6 Pilot Module 8800P 007 7 Inlet nipple 8800P 030 8 Ignition wire 8800P...

Страница 24: ...U 8800P 045 Burner Assembly 150 kBTU 8800P 048 Burner Assembly 199 kBTU 8800P 046 Burner Assembly 199 kBTU Low NOx 8800P 054 Burner Assembly 250 kBTU 8800P 047 Burner Assembly 300 kBTU 8800P 049 25 Wi...

Страница 25: ...water heater The diagnostic system is designed to give the user or qualified service technician a visual indication of the operational status of the different parts of the water heater s control syste...

Страница 26: ...26 LP 436 REV 3 21 14...

Страница 27: ...27 LP 436 REV 3 21 14...

Страница 28: ...28 LP 436 REV 3 21 14...

Страница 29: ...29 LP 436 REV 3 21 14...

Страница 30: ...30 LP 436 REV 3 21 14...

Страница 31: ...31 LP 436 REV 3 21 14...

Страница 32: ...32 LP 436 REV 3 21 14...

Страница 33: ...33 LP 436 REV 3 21 14 MAINTENANCE NOTES...

Страница 34: ...Installation Address Date of Installation Installer s Code Name Product Serial Number s Comments Installer s Phone Number Signed by Installer Signed by Customer IMPORTANT Customer Please only sign aft...

Страница 35: ...n of the Standard Limited Warranty detailed above E This warranty extends only to commercial water heaters utilized in heating applications that have been properly installed by qualified professionals...

Страница 36: ...the installer for assistance Be prepared to provide the retailer or installer with a copy of the original receipt complete model and serial numbers and the date of installation of the water heater in...

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