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Instruction Manual

PRINTED 0814 

326007-001

KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE 

WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.

 COMMERCIAL GAS WATER HEATERS

• 

For Your Safety

 •

AN ODORANT IS ADDED TO THE GAS USED 

BY THIS WATER HEATER.

MODELS JW375T75N-AV 

and JW375T75P-AV

Series 300, 301

INSTALLATION - OPERATION - SERVICE  

- MAINTENANCE - LIMITED WARRANTY

CANADIAN MANUAL

PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.

Read and understand this instruction

manual and the safety messages

herein before installing, operating or

servicing this water heater.
Failure to follow these instructions and

safety messages could result in death

or serious injury.
This manual must remain with the

water heater.

599 Hill Street West Fergus, 

ON Canada N1M 2X1

Low Lead Content

WARNING:  If   the information   in   these

instructions is not followed exactly, a fire

or explosion may result causing property

damage, personal injury or death.

Do  not store  or  use  gasoline  or other

flammable   vapors  and  liquids   in  the

vicinity 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   supplier

from a  neighbor’s  phone.  Follow the

gas supplier’s instructions.
If you cannot  reach your  gas supplier,

call the fire department.

Installation  and  service  must  be

performed  by  a  qualified  installer,

service agency or the gas supplier.

Содержание JW375T75N-AV

Страница 1: ...ructions and safety messages could result in death or serious injury This manual must remain with the water heater 599 Hill Street West Fergus ON Canada N1M 2X1 Low Lead Content WARNING If the informa...

Страница 2: ...Heater 12 Air Requirements 12 Unconfined Space 13 Confined Space 13 Fresh Air Openings for Confined Spaces 13 Outdoor Air Through Two Openings 13 Outdoor Air Through One Opening 13 Outdoor Air Throug...

Страница 3: ...ifornia to cause cancer birth defects or other reproductive harm and requires businesses to warn of potential exposure to such substances This product contains a chemical known to the State of Califor...

Страница 4: ...4 GENERAL SAFETY INFORMATION...

Страница 5: ...nd then the entire manual carefully If you don t follow the safety rules the water heater will not operate properly It could cause DEATH SERIOUS BODILY INJURY AND OR PROPERTY DAMAGE This manual contai...

Страница 6: ...1 1 4 3 2 1 NPT 1 2 NPT 11 15 16 30 3 RECOVERY RATINGS Models Input Approx Gal Cap Approx Liter Cap Temp Rise C 17 22 28 33 39 44 50 56 61 67 72 78 Rating Btu Hr Rating kW F 30 40 50 60 70 80 90 100 1...

Страница 7: ...cing and proper operation of the water heater Installation of water heater must be accomplished in such a manner that if the tank or any connections should leak flow will not cause damage to the struc...

Страница 8: ...sult in improper and inefficient operation of the water heater producing carbon monoxide gas in excess of the safe limits This could result in serious injury or death Contact your local gas supplier f...

Страница 9: ...ertain it does not sag thereby obstructing the combustion air flow HARD WATER Where hard water conditions exist water softening or the threshold type of water treatment is recommended This will protec...

Страница 10: ...to manufacturer s specifications If a positive lock up regulator is required follow these instructions 1 Positive lock up gas pressure regulators must be rated at or above the input Btu hr rating of...

Страница 11: ...y sized thermal expansion tank must be installed on all closed systems to control the harmful effects of thermal expansion Contact a local plumbing service technician to have a thermal expansion tank...

Страница 12: ...ature Pressure Relief Valve discharge line and 2 the water manually discharged will not cause any bodily injury or property damage because the water may be extremely hot If after manually operating th...

Страница 13: ...eater and the risk of fire or explosion may result It can also create a risk of asphyxiation LOUVERS AND GRILLES Thefreeareasofthefreshairopeningsintheinstructionsthatfollowdonot takeintoaccountthepre...

Страница 14: ...e provided with two permanent vertical ducts one commencing within 12 inches 300 mm of the top and one commencing within 12 inches 300 mm of the bottom of the enclosure The vertical ducts shall commun...

Страница 15: ...ter heater unless it is vented to the outdoors and has adequate air supply to avoid risks of improper operation explosion or asphyxiation For proper draft hood attachment the draft hood legs may be an...

Страница 16: ...IN INCHES MAXIMUM CAPACITY OF PIPE IN CUBIC FEET PER HOUR LENGTH IN FEET NOMINAL IRON PIPE SIZES INCHES INPUT IN THOUSANDS BTU HR 1 2 3 4 1 1 1 4 1 1 2 2 2 1 2 3 4 10 175 360 680 1400 2100 3960 6300 1...

Страница 17: ...allation shown in the Figures 15 and 16 Contaminants in the gas lines may cause improper operation of the gas control valve that may result in fire or explosion Before attaching the gas line be sure t...

Страница 18: ...18...

Страница 19: ...ian or gas supplier If the pilot will not stay lit after several tries turn the gas control knob to OFF Figure A and call your service technician or gas supplier 9 Replace inner and outer burner doors...

Страница 20: ...g valves are available at plumbing supply or hardware stores see Figure 2 Follow manufacturer s instructions for installation of the valves Before changing the factory setting on the thermostat read t...

Страница 21: ...s of combustion and water vapor SMOKE ODOR It is not uncommon to experience a small amount of smoke and odor during the initial start up This is due to burning off of oil from metal parts and will dis...

Страница 22: ...f the flue and vent system may occur if air for combustion contains certain chemical vapors Spray can propellants cleaning solvents refrigerator and air conditioner refrigerants swimming pool chemical...

Страница 23: ...sult in overheating and excessive tank pressure Can cause serious injury or death HOUSEKEEPING Fire and Explosion Hazard Do not obstruct combustion air openings at the bottom of the water heater Do no...

Страница 24: ...RAGE TANK 1 Turn off the electrical supply to the water heater 2 Ensure the cold water inlet valve is open 3 Open a nearby hot water faucet and let the water run until the water is no longer hot Then...

Страница 25: ...ch can condense on the cooler surfaces of the tank Droplets form and drip onto the burner or run on the floor This is common at the time of start up after installation and when incoming water is cold...

Страница 26: ...mbly and or thermocouple Defective Gas Control Replace Gas Control PILOT OUTAGE Dirty pilot burner Clean pilot assembly Thermocouple malfunction Replace pilot assembly and or thermocouple Defective Ga...

Страница 27: ...s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE 1 UNIT LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSU...

Страница 28: ...mostat should be set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE 1 UNIT WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP...

Страница 29: ...ermostat should be set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE 1 UNIT WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING P...

Страница 30: ...set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE 1 UNIT WITH MIXING VALVE TWO TEMPERATURE LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPE...

Страница 31: ...ating thermostat should be set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE 2 UNITS LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE...

Страница 32: ...er than the Tank Temperature Control SINGLE FLUE 2 UNITS TWO TEMPERATURE ONE PRE HEATER ONE BOOSTER HEATER LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERAT...

Страница 33: ...33 NOTES...

Страница 34: ...34 NOTES...

Страница 35: ...d by improper gas supply line sizing gas type venting connections combustion air voltage wiring or fusing Failure to follow applicable codes Failure to follow printed instructions Abuse misuse acciden...

Страница 36: ...rights reserved 599 Hill Street West Fergus ON Canada N1M 2X1 Should you have any questions please Email us at techsupport gsw wh com or Visit our website www johnwoodwaterheaters com or Call our Tech...

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