American Water Heater 98 Gallon High Recovery Natural Gas Water Heater G62100T774NOV User Manual

							21
draInInG and flushInG
It	is	 recommended	 that	the	tank	 be	drained	 and	fl	ushed	 every	6	
months	 to	remove	 sediment	 which	may	build	 up	during	 operation. 	The 	
water	 heater	 should	 be	drained	 if	being	 shut	down	 during	 freezing	
temperatures.	 To	drain	the	tank,	perform	the	following	steps:
1. 	Turn 	of f 	the 	gas 	to 	the 	water 	heater 	at 	the 	manual 	gas 	shut-
off 	valve.
2.	Open	a	nearby	hot	water	faucet	until	the	water	is	no	longer	hot.
3.	Close	the	cold	water	inlet	valve.
4.	 Connect	 a	hose	 to	the	 drain	 valve	 and	terminate	 it	to	 an	 adequate	
drain	or	external	to	the	building.
5.	 Open	 the	water	 heater	 drain	valve	 and	allow	 all	of	the	 water 	
to	 drain	 from	the	tank.	 Flush	 the	tank	 with	water	 as	needed	 to	
remove	sediment.
6.	 Close	 the	drain	 valve,	 refill	the	tank,	 and	restart	 the	heater	 as	
directed	in	this	manual.
If	 the	 water	 heater	 is	going	 to	be	 shut	 down	 for	an	extended	 period,	
the	drain	valve	should	be	left	open.
IMPORTANT:	 Condensation	 may	occur	 when	refi	lling	 the	tank	 and	
should	not	be	confused	with	a	tank	leak.
draIn v alve washer replaceMent for 
selected Models wIth plastIc draIn valves
(See	Figure	19)
1.	Turn	“OFF”	gas	supply	to	water	heater.
2.	Follow	“Draining”	instructions.
3.	 Turning	 counterclockwise	 (		),	 remove	 the	hex	 cap	below	 the	
screw	handle.	
4.	Remove	the	was	her	and	put	the	new	one	in	place.
5. 	Screw	 the	handle	 and	cap	assembly	 back	into	the	drain	 valve	 and	
retighten	using	a	wrench.	DO	NOT 	OVER	TIGHTEN.
6.	Follow	instructions	in	the	“Filling	 The	Water	Heater”	section.
7.	Check	for	leaks.
8.	 Follow	 the	lighting	 Instructions	 in	the	 “Lighting	 and	Operating 	
Instructions”	section	to	restart	the	water	heater.
fIGure  20.
servIce
Before	 calling	for	repair	 service,	 read	the	“Start	 Up	Conditions”	 and	
“Operational	 Conditions”	found	in	the	 “For	 Your	 Information”	 section	
of	this	manual.
If	 a	 condition	 persists	or	you	 are	uncertain	 about	the	operation	 of	the 	
water	 heater	 contact	 a	service	 agency.	 If	you	 are	not	thoroughly	 familiar	
with	 gas	codes,	 your	water	 heater,	 and	safety	 practices,	 contact	your	
gas	supplier	or	qualified	installer	to	check	the	water	heater.
Use	 the	”Leakage	 Checkpoints”	 	 guide	to	check	 a	“Leaking” 	  
water	 heater.		 Many	suspected	 “Leakers”	are	not	leaking	 tanks.		Often	
the	source	of	the	water	can	be	found	and	corrected.
Read	 this	manual	 first.		Then	 before	 checking	 the	water	 heater	 make	
sure	 the	gas	 supply	 has	been	 turned	 “OFF”,	 and	never	 turn	the	gas	
“ON”	before	the	tank	is	completely	full	of	water.
Never	 use	this	water	 heater	 unless	it	 is	 completely	 filled	with	water.		
To	 prevent	 damage	 to	the	 tank,	 the	tank	 must	 be	filled	 with	water.		
Water	 must	flow	from	 the	hot	water	 faucet	 before	 turning	 “ON”	gas	
to	the	water	heater. 
						

							22
leaKaGe checKpoInts
Read	this	manual	 first.		Then	 before	 checking	 the	water	 heater	 make	
sure	 the	gas	 supply	 has	been	 turned	 “OFF”,	 and	never	 turn	the	gas	
“ON”	before	the	tank	is	completely	full	of	water.
Never	 use	this	water	 heater	 unless	it	 is	 completely	 filled	with	water.		
To	 prevent	 damage	 to	the	 tank,	 the	tank	 must	 be	filled	 with	water.		
Water	 must	flow	from	 the	hot	water	 faucet	 before	 turning	 “ON”	gas	
to	the	water	heater.
A.	 Water	 at	the	 draft	 hood	 is	water	 vapor	 which	 has	condensed	 out	
of	 the	 combustion 	products.		 This	is	caused	 by	a	problem	 in	the	
vent.	Contact	the	gas	utility.
B.		*Condensation	 may	be	seen	 on	pipes	 in	humid	 weather	 or	pipe	
connections	may	be	leaking.
C.		*The	anode	rod	fitting	may	be	leaking.
D.		Small	 amounts	of	water	 from	temperature-pressure	 relief	valve	
may	 be	due	 to	thermal	 expansion	 or	high	 water	 pressure	 in	your	
area.
E.		*The	 temperature-pressure	 relief	valve	 may	be	leaking	 at	the	
tank	fitting.
F.		 Water	 from	a	drain	valve	 may	be	due	 to	the	 valve	being	 slightly	
opened.
G.		*The	drain	valve	may	be	leaking	at	the	tank	fitting.
H.		Combustion	 products	contain	water	vapor	 which	 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.
I.		 Water	 in	the	 water	 heater	 bottom	 or	on	 the	 floor	 may	be	from	
condensation,	 loose	connections,	 or	the	 relief	 valve.		 DO	NOT 	
replace	 the	water	 heater	 until	a	full	 inspection	 of	all	 possible	 water	
sources	is	made	and	necessary	corrective	steps	taken.
Leakage	 from	other	 appliances, 	water	 lines,	or	 ground	 seepage 	
should	also	be	checked.
*	 To	 check	 where	 threaded	 portion	enters	tank,	insert	 cotton	
swab	 between	 jacket	opening	 and	fitting.		 If	cotton	 is	wet,	 follow	
“Draining” 	instructions 	in	 the	 “Periodic 	Maintenance” 	section	 and	
then	 remove	 fitting.		Put	pipe	 dope	 or	teflon	 tape	on	the	 threads	
and	 replace.		 Then	follow	 “Filling	 the	Water	 Heater”	 instructions	
in	the	“Installing	the	New	Water	Heater”	section. 
						

							23
repaIr parts
17
a
draIn pan23
natural
propane
 
  Key no.  part description
	 1	 Pipe	Nipple
	 2	 Burner	Tube
	 3	 Burner	Head
	 4	 Thermocouple
	 5	 Pilot
	 6	 Draft	Hood
	 *7	 Draft	Hood	Brace
	 8	 Inlet	 Tube
	 9	 Flue	Baffle	 Assembly
	 10	 Anode	Rod
	 11	 Cleanout	Cover	(Optional)
	 12	 Cleanout	Gasket	(Optional)
	 13	 Cleanout	Screw	(Optional)
	 14	 Inner	Door
	 15	 Outer	Door
	 16	 Gas	Control	Valve/Thermostat
	 17	 T 	&	P	Relief	Valve
	 18	 Drain	Valve
	 19	 Front	Cover	(optional)
	 20	 Pilot	 Tube	(LP)
	 21	 Orifice
	 *22	 Fitting	Breakaway
	 *23	 Metal	Drain	Pan
	 *24	 Instruction	Manual
* not shown.
Now	 that	you	have	 purchased	 this	water	 heater,	 should	a	need	
ever	 exist	 for	repair	 parts	or	service,	 simply	contact	 the	company	
it	 was	 purchased	 from	or	direct	 from	the	manufacturer	 listed	on	
the	rating	plate	on	the	water	heater.
Be	sure	to	provide	all	pertinent	facts	when	you	call	or	visit.
selling prices will be furnished on request or parts will 
be shipped at prevailing prices and you will be billed 
accordingly.
The	 model	 number 	of 	your 	Gas 	Water	 Heater	 will	be	found	 on	the	
rating	place	located	above	the	gas	control	valve.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE 
FOLLOWING	INFORMATION:
•	 MODEL 	NUMBER
•	 TYPE	GAS	(NATURAL 	OR	PROPANE	(L.P.)
•	 SERIAL 	NUMBER
•	 PART 	DESCRIPTION
thIs Is  a repaIr parts lIst , not a pacKInG lIst .
    approX.    
     InsulatIon      teMp  
     thIcKness  press.  a  =  relIef
     > or = 1.5”  150 lBs. 2.13” 210°f
     < 1.5”  150 lBs.  1.88” 210°f
3/4” T&P RELIEF VALVEautoMatIc, self-closInG tYpes 
						

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These	guidelines	should	be	utilized	by	a	qualified	service	technician.
trouBleshootInG GuIdelInes
	 Problem Cause Solution
WATER LEAKSImproperly	sealed,	hot	or	cold	supply	connection,	relief	
valve,	drain	valve,	or	thermostat	threads.
Tighten	threaded	connections.
Leakage	from	other	appliances	or	water	lines. Inspect	other	appliances	near	water	heater.
Condensation	of	flue	products. Refer	to	CONDENSATION.
LEAKING T&P VALVE Thermal	expansion	in	closed	water	system.
Install	thermal	expansion	tank	(DO	NOT	plug	T&P	valve).
Improperly	seated	valve. Check	relief	valve	for	proper	operation
	
(DO	NOT 	plug	T&P	valve).
SMELLY WATER High	sulfate	or	mineral	content	in	water	supply.
Drain	and	flush	heater	thoroughly,	then	refill.
Bacteria	in	water	supply. Chlorinate	or	aerate	water	supply.
PILOT WILL NOT LIGHT Gas	control	knob	not	positioned	correctly.
Refer	to	LIGHTING	INSTRUCTIONS.
Main	gas	supply	off. Turn	on	main	gas	shutoff	valve.
Thermocouple	malfunction. Replace	pilot	assembly	and/or	thermocouple.
Match	not	close	to	pilot Locate	pilot,	move	match	closer.
BURNER WILL NOT  STAY LIT Thermocouple	malfunction.
Replace	pilot	assembly	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	Gas	Control. Replace	Gas	Control.
Thermocouple	tip	is	not	in	contact	with	pilot	flame. Insert	thermocouple	correctly.
NOT ENOUGH   HOT WATER Heater	not	lit	or	thermostat	not	on.
Refer	to	LIGHTING	INSTRUCTIONS.
Thermostat	set	too	low. Refer	to	TEMPERATURE	REGULATION.
Heater	undersized. Reduce	hot	water	use.
Low	gas	pressure. Contact	your	gas	supplier.
Incoming	water	is	unusually	cold. Allow	more	time	for	heater	to	re-heat.
Leaking	hot	water	pipes	or	fixtures. Have	plumber	check	and	repair	leaks.
High	temperature	limit	switch	activated. Contact	a	service	agency	to	determine	cause.
WATER TOO HOT Thermostat	set	too	high. Refer	to	TEMPERATURE	REGULATION.
WATER HEATER SOUNDSCondensation	dripping	on	burner. Refer	to	CONDENSATION.
SIZZLING	OR 	
RUMBLING Sediment	or	calcium	in	bottom	of	heater	tank.
Clean	sediment	from	tank.		Refer	to	DRAINING
	
instructions	in	Maintenance	section	of	manual.
SOOTING Improper	combustion. No	adjustment	available.	Contact	a	service	agency
	
to	determine	cause.
VENT GAS ODORS Lack	of	supply	air.
Contact	a	service	agency	to	determine	cause.
Improperly	installed	vent	piping.
Downdraft.
Poor	combustion. 
						

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notes 
						

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notes