American Water Heater AHCG/HCG3 60T 120 - AHCG3/HCG3 100T 250 User manual

American Water Heater
Brand
American Water Heater
Model
AHCG/HCG3 60T 120 - AHCG3/HCG3 100T 250
Category
Water heaters & boilers
Type
User manual

This manual is also suitable for

COMMERCIAL GAS WATER HEATERS
Instruction Manual
PRINTED 0912 198154-003
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
7KDQN\RXIRUEX\LQJWKLVHQHUJ\HI¿FLHQWZDWHUKHDWHU
:HDSSUHFLDWH\RXUFRQ¿GHQFHLQRXUSURGXFWV
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.
MODELS AHCG3/HCG3 60T 120
THROUGH AHCG3/HCG3 100T 250
SERIES 100 & 101
INSTALLATION - OPERATION - SERVICE
- MAINTENANCE - LIMITED WARRANTY
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.
www.americanwaterheater.com
American Water Heater
Johnson City, TN 37605
2
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TEMPERATURE REGULATION 43
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Temperatures Menu47
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Heater Information49
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+LJK$OWLWXGH,QVWDOODWLRQV 55
LIGHTING THE WATER HEATER 56
Lighting & Operation Labels 56
7528%/(6+227,1* 58
,QVWDOODWLRQ&KHFNOLVW 58
6HTXHQFH2I2SHUDWLRQ 58
6HTXHQFH2I2SHUDWLRQ)ORZ&KDUW 59
Operational Problems 60
5RXJK6WDUWLQJ5RXJK2SHUDWLRQ60
Momentary Ignition60
Not Enough Or No Hot Water60
)DXOW$QG$OHUW&RQGLWLRQV 61
)DXOW&RQGLWLRQV61
$OHUW&RQGLWLRQV61
5HVHWWLQJ&RQWURO6\VWHP/RFN2XWV61
'LDJQRVWLF&KHFNV61
)DXOW$QG$OHUW0HVVDJHV62
0$,17(1$1&( 64
0DLQWHQDQFH6FKHGXOH 64
',$*5$06 67
&&%&HQWUDO&RQWURO%RDUG/D\RXW 67
$+&*:LULQJ'LDJUDP 68
$+&*:LULQJ'LDJUDP 69
&LUFXODWLRQ3XPS:LULQJ'LDJUDPV 70
Water Piping Diagrams 71
/,0,7(':$55$17< 78
TABLE OF CONTENTS
6$)(,167$//$7,2186($1'6(59,&( 3
*(1(5$/6$)(7<,1)250$7,21 4
3UHFDXWLRQV 4
,1752'8&7,21 6
4XDOL¿FDWLRQV 6
3UHSDULQJ)RU7KH,QVWDOODWLRQ 6
)($785(6$1'&20321(176 7
%DVLF2SHUDWLRQ 7
7RS9LHZV 8
6LGH9LHZV 10
,167$//$7,21&216,'(5$7,21611
Rough In Dimensions11
*DV3UHVVXUH5HTXLUHPHQWV 12
5HFRYHU\&DSDFLWLHV 12
/RFDWLQJ7KH:DWHU+HDWHU 12
&OHDUDQFH7R&RPEXVWLEOH0DWHULDOV13
6HUYLFH&OHDUDQFH13
Insulation Blankets 13
,167$//$7,215(48,5(0(176 14
*DV6XSSO\6\VWHPV 14
6XSSO\*DV5HJXODWRU 14
3RZHU6XSSO\ 14
Mixing Valves 15
'LVKZDVKLQJ0DFKLQHV 15
&ORVHG:DWHU6\VWHPV 15
Thermal Expansion 15
Temperature-Pressure Relief Valve 16
&RQGHQVDWH'UDLQ 17
$LU5HTXLUHPHQWV 18
&RPPRQZHDOWKRI0DVVDFKXVHWWV 21
9(17,1*,167$//$7,21 22
General Venting Information 22
&DWHJRU\,9$SSOLDQFH22
3RZHU9HQW&RQ¿JXUDWLRQ22
'LUHFW9HQW&RQ¿JXUDWLRQ22
*HQHUDO9HQWLQJ,QVWUXFWLRQV 22
9HQWLQJ5HTXLUHPHQWV 24
0D[LPXP(TXLYDOHQW/HQJWKV24
0LQLPXP(TXLYDOHQW/HQJWKV24
0D[LPXP1XPEHU2I(OERZV24
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DANGER
WARNING
CAUTION
CAUTION
DANGER indicates an imminently
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will result in injury or death.
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
WARNING indicates a potentially hazardous
situation which, if not avoided, could result
in injury or death.
CAUTION indicates a potentially hazardous
situation which, if not avoided, could result in
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symbol indicates a potentially hazardous
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property damage.
APPROVALS
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PRECAUTIONS
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GROUNDING INSTRUCTIONS
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HYDROGEN GAS FLAMMABLE
Explosion Hazard
Flammable hydrogen gases
may be present.
Keep all ignition sources away
from faucet when turning on
hot water.
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GENERAL SAFETY INFORMATION
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.
Water temperature over 125°F (52°C)
can cause severe burns instantly
resulting in severe injury or death.
Children, the elderly and the
physically or mentally disabled are at
highest risk for scald injury.
Feel water before bathing or
showering.
Temperature limiting devices such as
mixing valves must be installed
when required by codes and to
ensure safe temperatures at fixtures.
Explosion Hazard
Overheated water can cause
water tank explosion.
Properly sized temperature and
pressure relief valve must be
installed in the opening provided.
Verify the power to the water heater is turned off before performing any service procedures.
Improper installation, use and service may result
in property damage.
Do not operate water heater if flood damaged.
Inspect anode rods regularly, replace if damaged.
Install in location with drainage.
Fill tank with water before operation.
Properly sized thermal expansion tanks are required on all
closed water systems.
Refer to this manual for installation and service.
CAUTION
5
GENERAL SAFETY INFORMATION
Fire Hazard
Do not install water heater on
carpeted floor.
Do not operate water heater if
flood damaged.
For continued protection against
risk of fire:
Fire or Explosion Hazard
Read instruction manual before
installing, using or servicing
water heater.
Avoid all ignition sources if you smell gas.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Use only the gas shown on the water heater rating label.
Keep ignition sources away from faucets after extended
periods of non-use.
Maintain required clearances to combustibles.
Do not expose water heater controls to excessive gas
pressure.
Do not obstruct water heater air intake
with insulating blanket.
Gas and carbon monoxide detectors
are available.
Install water heater in accordance with
the instruction manual.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
Breathing Hazard - Carbon Monoxide Gas
Property Damage Hazard
All water heaters eventually leak.
Do not install without adequate drainage.
CAUTION
Fire and Explosion Hazard
Leak test before placing the
water heater in operation.
Disconnect gas piping and main
gas shutoff valve before leak
testing.
Install sediment trap in
accordance with NFPA 54.
Use joint compound or Teflon tape
compatible with propane gas.
Fire and Explosion Hazard
Turn off gas lines during installation.
Contact a qualified installer or service
agency for installation and service.
Excessive gas pressure to gas valve can
cause serious injury or death.
Do not use water heater with any gas
other than the gas shown on the rating
label.
Turn off power to the water heater
before performing any service.
Electrical Shock Hazard
Label all wires prior to disconnecting
when performing service. Wiring errors
can cause improper and dangerous
operation.
Verify proper operation after servicing.
Failure to follow these instructions can
result in personal injury or death.
Jumping out control circuits or components can
result in property damage, personal injury or death.
Service should only be performed by a qualified service
agent using proper test equipment.
Altering the water heater controls and/or wiring in any way
could result in permanent damage to the controls or water
heater and is not covered under the limited warranty.
Any bypass or alteration of the water
heater controls and/or wiring will result
in voiding the appliance warranty.
Altering the water heater controls and/or wiring in any way
could result in altering the ignition sequence allowing gas to
flow to the main burner before the hot surface igniter is at
ignition temperature causing delayed ignition which can
cause a fire or explosion.
6
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Figure 1
FEATURES AND COMPONENTS
BLOWER/BURNER ASSEMBLY DETAIL
199,000 & 250,000 Btu/hr MODELS
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Figure 2
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120,000 & 150,000
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TOP VIEW
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Figure 6
ROUGH IN DIMENSIONS
INSTALLATION CONSIDERATIONS
FRONT BACK
CLEANOUT
T & P VALVE
3/4” NPT DRAIN
1 1/2” NPT
WATER INLET
VENT CONNECTION
3 INCH PVC
(exhaust elbow)
CONDENSATE
DRAIN CONNECTION
1/2 INCH PVC
INTAKE AIR CONNECTION
3 INCH PVC
SUPPLY GAS
CONNECTION
E
H
D
C
A
I
G
F
B
WATER OUTLET
HEIGHT
These designs comply with the current edition of the American National Standard for Gas Water Heaters, Volume III, ANSI Z21.10.3 / CSA 4.3
as an automatic circulating tank water heater, and automatic storage water heaters.
120,000 & 150,000
Btu/hr
MODELS
199,000 & 250,000
Btu/hr
MODELS
* Center line of water outlet on top of the water heaters is approximately 7 inches from the front edge of the water heater.
TOP VIEWS
45°
18°
CL
E
ANO
U
T
T &
P
V
AL
V
E
D
RA
I
N
V
A
L
V
E
45°
35°
64°
*1 1/2” NPT
WATER
OUTLET
SUPPLY GAS
CONNECTION
VERTICAL
FRONT
INTAKE AIR
3 INCH PVC
VENT
3 INCH
PVC
35°
22°
68°
45°
18°
45°
CLE
ANO
U
T
T
&
P
V
A
L
V
E
D
R
A
I
N
V
A
L
V
E
*1 1/2” NPT
WATER
OUTLET
FRONT
INTAKE AIR
3 INCH PVC
GAS
VENT
3 INCH
PVC
MODEL
',0(16,216
6+,3
WEIGHT
67'
6+,3
WEIGHT
$60(
AB& DE) GH I
,1&+(6&0 ,1&+(6&0 ,1&+(6&0 ,1&+(6&0 ,1&+(6&0 ,1&+(6&0 ,1&+(6&0 ,1&+(6&0 ,1&+(6&0 /%6.* /%6.*
$+&*7 120
        
460/208 490/222
$+&*7 150
       63/160 
555/252 595/270
$+&*7
       63/160 
555/252 595/270
$+&*7
       63/160 
555/252 595/270
12
STORAGE CAPACITIES
TABLE 2
MODEL 86*$//216 /,7(56
$+&*7 60 227
$+&*7 100 379
$+&*7 100 379
$+&*7 100 379
GAS LINE CONNECTION SIZE
TABLE 1
† MODEL 6(5,(6 1$785$/*$6 3523$1(*$6
$+&*7 100/101 3/4 "NPT 3/4 "NPT
$+&*7 100/101 3/4 "NPT 3/4 "NPT
$+&*7 100/101 3/4 "NPT 3/4 "NPT
$+&*7 100/101 3/4 "NPT 3/4 "NPT
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Fire or Explosion Hazard
Read instruction manual before
installing, using or servicing
water heater.
Avoid all ignition sources if you smell gas.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Use only the gas shown on the water heater rating label.
Keep ignition sources away from faucets after extended
periods of non-use.
Maintain required clearances to combustibles.
Do not expose water heater controls to excessive gas
pressure.
LOCATING THE WATER HEATER
&DUHIXOO\ FKRRVH D ORFDWLRQ IRU WKH QHZ ZDWHU KHDWHU 7KH
SODFHPHQWLVDYHU\LPSRUWDQWFRQVLGHUDWLRQIRUWKHVDIHW\RIWKH
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ZDWHUKHDWHU
Property Damage Hazard
All water heaters eventually leak.
Do not install without adequate drainage.
CAUTION
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DYRLGHGLWLVUHFRPPHQGHGWKDWDPHWDOGUDLQSDQDGHTXDWHO\
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GAS PRESSURE REQUIREMENTS
TABLE 3
MODEL
0$1,)2/'35(6685( 0,1,0806833/<35(6685( 0$;,0806833/<35(6685(
1$785$/*$6 3523$1(*$6 1$785$/*$6 3523$1(*$6 1$785$/*$6 3523$1(*$6
$+&*7 ´:&N3D ´:&N3D ´:&N3D ´:&N3D ´:&N3D ´:&N3D
$+&*7 ´:&N3D ´:&N3D ´:&N3D ´:&N3D ´:&N3D ´:&N3D
$+&*7 ´:&N3D ´:&N3D ´:&N3D ´:&N3D ´:&N3D ´:&N3D
$+&*7 ´:&N3D ´:&N3D ´:&N3D ´:&N3D ´:&N3D ´:&N3D
RECOVERY CAPACITIES
TABLE 4
U. S. GALLONS/HR & LITTERS/HR AT TEMPERATURE RISE INDICATED
0RGHO
Type of
Gas
Input ) ) ) ) ) ) ) ) ) ) ) ) )
Btu/hr kW & & & & & & & & & & & & &
$+&*7
Natural
 35
GPH 461 345 276 230 197 173 154 138 126 115 106 99
Propane LPH 1744 1308 1046 872 747 654 581 523 476 436 402 374
$+&*7
Natural
 44
GPH 576 432 345 288 247 216 192 173 157 144 133 123
Propane LPH 2179 1635 1308 1090 934 817 726 654 594 545 503 467
$+&*7
Natural
 58
GPH 767 575 460 384 329 288 256 230 209 192 177 164
Propane LPH 2904 2178 1743 1452 1245 1089 968 871 792 726 670 622
$+&*7
Natural
 73
GPH 960 720 576 480 411 360 320 288 262 240 221 206
Propane LPH 3632 2724 2179 1816 1557 1362 1211 1090 991 908 838 778
5HFRYHU\FDSDFLWLHVDUHEDVHGRQWKHUPDOHI¿FLHQF\
13
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WKHZDWHUKHDWHU
CLEARANCE TO COMBUSTIBLE MATERIALS
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NOTE:$GHTXDWHFOHDUDQFHIRUVHUYLFLQJVKRXOGEHPDLQWDLQHG
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TOP VIEW
0
0
0
ALCOVE
FRONT VIEW
CLEARANCES TO COMBUSTIBLE
AND NON COMBUSTIBLE
CONSTRUCTION MATERIALS
WATER
HEATER
FRONT
TOP COVER
FRONT
Figure 7
SERVICE CLEARANCE
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INSTALLATION REQUIREMENTS
15
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CHECK
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CLOSED WATER SYSTEMS
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MIXING VALVES
Water temperature over 125°F (52°C)
can cause severe burns instantly
resulting in severe injury or death.
Children, the elderly and the
physically or mentally disabled are at
highest risk for scald injury.
Feel water before bathing or
showering.
Temperature limiting devices such as
mixing valves must be installed
when required by codes and to
ensure safe temperatures at fixtures.
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TABLE 6
Water Temperature
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Time for 1st Degree Burn
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Time for Permanent Burns
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 35 minutes 45 minutes
 1 minute 5 minutes
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 VHFRQGV VHFRQGV
 VHFRQG VHFRQGV
 instantaneous VHFRQG
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DISHWASHING MACHINES
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Water Damage Hazard
Temperature-Pressure Relief Valve discharge
pipe must terminate at adequate drain.
CAUTION
T&P Valve Discharge Pipe Requirements:
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Pressure Relief Valve
discharge outlet.
The Temperature-Pressure Relief Valve must be manually
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TEMPERATURE-PRESSURE RELIEF VALVE
Explosion Hazard
Temperature-Pressure Relief Valve
must comply with ANSI Z21.22-
CSA 4.4 and ASME code.
Properly sized temperature-
pressure relief valve must be
installed in opening provided.
Can result in overheating and
excessive tank pressure.
Can cause serious injury or death.
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CONDENSATE DRAIN
LINE - FIELD INSTALLED
CONDENSATE DRAIN
LINE CONNECTION
EXHAUST (VENT)
ELBOW
BUILDING
DRAIN
FACTORY INSTALLED
CONDENSATE TRAP
CLEANOUT
PLUG IS
REMOVED
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DRAIN
Figure 9
CONDENSATE DRAIN WATER TRAP
Ensure a functioning water trap is
installed in the condensate drain.
Gas and carbon monoxide detectors
are available.
Install water heater in accordance with
the instruction manual.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
Breathing Hazard - Carbon Monoxide Gas
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COMBUSTIBLE MATERIAL STORAGE
Fire or Explosion Hazard
Read instruction manual before
installing, using or servicing
water heater.
Avoid all ignition sources if you smell gas.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Use only the gas shown on the water heater rating label.
Keep ignition sources away from faucets after extended
periods of non-use.
Maintain required clearances to combustibles.
Do not expose water heater controls to excessive gas
pressure.
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CONTAMINATED AIR
Breathing Hazard - Carbon Monoxide Gas
Install water heater in accordance with
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CAN/CSA-B149.1.
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air must be taken from outdoors.
Do not place chemical vapor emitting
products near water heater.
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death. Always read and understand instruction manual.
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Breathing Hazard - Carbon Monoxide Gas
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American Water Heater AHCG/HCG3 60T 120 - AHCG3/HCG3 100T 250 User manual

American Water Heater
Brand
American Water Heater
Model
AHCG/HCG3 60T 120 - AHCG3/HCG3 100T 250
Category
Water heaters & boilers
Type
User manual
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