American Water Heater | 120 Series | Instruction manual | American Water Heater 120 Series Instruction manual

MODELS PCE 6-120 GALLONS
COMMERCIAL ELECTRIC WATER HEATERS
• Installation
• Operation
• Electrical
• Maintenance
• Wiring Diagrams
• Leakage Checkpoints
• Replacement Parts
• Limited Warranty
500 Tennessee Waltz Parkway, Ashland City, TN 37015
www.statewaterheaters.com
CAUTION
TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY.
PLEASE READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE.
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
Printed in U.S.A. 0106
PART NO. 195202-002
1
ROUGH-IN DIMENSIONS
* NO SIDE OUTLET AVAILABLE
FOR PCE 6 MODELS
ROUGH-IN DIMENSIONS
Models
Dimensions
PCE 6 1OMSA
PCE 10 1OMSA
PCE 17 OMSA
PCE 20 1OMSA
PCE 30 2OLSA
PCE 40 2OLSA
PCE 50 2OLSA
PCE 30 2ORTA
PCE 40 2ORTA
PCE 52 2ORTA
PCE 66 2ORTA
PCE 82 2ORTA
PCE 120 2ORTA
No. of
Elements
1
1
1
1
2
2
2
2
2
2
2
2
2
Tank Capacity
US Gals. Litres
6
23
10
38
15
57
20
76
30
114
40
151
50
189
30
114
40
151
50
189
66
250
80
303
119
450
A
inches
15 1/2
18 1/4
26
22 1/4
30 7/8
32 1/4
32 1/4
34 1/2
45 1/8
54 7/8
60 3/4
59 3/8
62 7/16
B
mm
394
464
660
565
784
819
819
876
1146
1394
1543
1508
1586
inches
14 1/4
18
18
21 3/4
21 3/4
24
26 1/2
20 1/2
20 1/2
20 1/2
21 3/4
24
29 3/8
C
mm
362
457
457
552
552
610
673
521
521
521
552
610
746
inches
11
12 1/2
20 1/2
15 3/8
24 1/8
25 9/16
25 1/8
-
mm
279
318
521
391
613
649
638
-
D
inches
8
8
8
8
8
8
8
8
8
Approx.
Shipping Weight.
Lbs.
Kg.
35
15.9
54
24.5
58
26.3
73
33.1
100
45.4
125
56.7
166
75.3
98
44.5
113
51.3
131
59.4
176
79.8
211
95.7
326
147.9
mm
203
203
203
203
203
203
203
203
203
RECOVERY CAPACITIES
Element
Wattage
(Upper/Lower)
INPUT
KW
F°
C°
NON-SIMULATANEOUS OPERATION
/1500
GPH
1.5
LPH
/2000
GPH
2.0
LPH
/2500
GPH
2.5
LPH
3000/3000
GPH
3.0
LPH
4000/4000
GPH
4.0
LPH
4500/4500
GPH
4.5
LPH
5000/5000
GPH
5.0
LPH
6000/6000
GPH
6.0
LPH
SIMULATANEOUS OPERATION
3000/3000
GPH
6
LPH
4000/4000
GPH
8
LPH
4500/4500
GPH
9
LPH
5000/5000
GPH
10
LPH
6000/6000
GPH
12
LPH
U.S. Gallons/Hr and Litres/Hr at TEMPERATURE RISE INDICATED
54F°
60F°
72F°
80F°
90F°
100F° 108F° 120F° 126F°
30C° 33.3C° 40C° 44.4C° 50C°
55.5C° 60C° 66.6C° 70C°
36F°
20C°
40F°
22.2C°
17
64
23
85
28
107
34
128
45
170
51
192
56
213
68
256
15
58
20
77
25
96
30
115
41
153
46
173
51
192
61
230
11
43
15
57
19
71
23
85
30
114
34
128
38
142
45
170
10
38
14
51
17
64
20
77
27
102
30
115
34
128
41
153
8
32
11
43
14
53
17
64
23
85
25
96
28
107
34
128
8
29
10
38
13
48
15
58
20
77
23
86
25
96
30
115
7
26
9
34
11
43
14
51
18
68
20
77
23
85
27
102
6
23
8
31
10
38
12
46
16
61
18
69
20
77
24
92
6
21
8
28
9
36
11
43
15
57
17
64
19
71
23
85
5
19
7
26
8
32
10
38
14
51
15
58
17
64
20
77
5
18
6
24
8
30
10
37
13
49
14
55
16
61
19
73
68
256
90
341
101
384
113
426
135
511
61
230
81
307
91
345
101
384
122
460
45
170
60
227
68
256
75
284
90
341
41
153
54
205
61
230
68
256
81
307
34
128
45
170
51
192
56
213
68
256
30
115
41
153
46
173
51
192
61
230
27
102
36
136
41
153
45
170
54
205
24
92
32
123
36
138
41
153
49
184
23
85
30
114
34
128
38
142
45
170
20
77
27
102
30
115
34
128
41
153
19
73
26
97
29
110
32
122
39
146
Recovery capacities at 100° F rise equal: for non-simultaneous element operation = 4.1 gal. x KW of one element; for simultaneous element operation
= 4.1 gal. x 2/3 KW of both elements. For other rises multiply element KW as previously explained by 410 and divide by temperature rise. Full load current for single
phase = total watts : voltage.
2
reduce the risk of injury under these conditions, it is recommended
that the hot water faucet be opened for several minutes at a nearby
kitchen sink before using any electrical appliance connected to
the hot water system. If hydrogen is present, there will probably
be an unusual sound such as air escaping through the pipe as
the water begins to flow. THERE SHOULD BE NO SMOKING OR
OPEN FLAME NEAR THE FAUCET AT THE TIME IT IS OPENED.
FOREWORD
Thank you for buying this energy efficient water heater from
State. We appreciate your confidence in our products. Detailed
installation diagrams are in this manual. These diagrams will
serve to provide the installer with a reference for the materials
and method of piping suggested. IT IS NECESSARY THAT ALL
WATER PIPING AND THE ELECTRICAL WIRING BE INSTALLED
AND CONNECTED AS SHOWN IN THE DIAGRAMS.
CAUTION
AN ELECTRICAL GROUND IS REQUIRED TO REDUCE RISK
OF ELECTRIC SHOCK OR POSSIBLE ELECTROCUTION. THE
GROUND SCREW AT THE JUNCTION BOX IS FOR BONDING
THE HEATER TO A GROUNDED SERVICE ENTRANCE
CONDUCTOR, A GROUNDED SERVICE ENTRANCE RACEWAY,
OR AN EARTH GROUNDING ELECTRODE CONDUCTOR.
In addition to these instructions, the water heater must be
installed in accordance with local codes and the authority having
jurisdiction.
GENERAL SAFETY INSTRUCTIONS
BE SURE TO TURN OFF POWER WHEN WORKING ON OR
NEAR THE ELECTRICAL SYSTEM OF THE HEATER. NEVER
TOUCH ELECTRICAL COMPONENTS WITH WET HANDS OR
WHEN STANDING IN WATER. WHEN REPLACING FUSES
ALWAYS USE THE CORRECT SIZE FOR THE CIRCUIT.
WARNING
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT
IN SERIOUS PERSONAL INJURY OR DEATH.
REQUIRED ABILITY
The principal components of the heater are identified on page 6.
The model and rating plate on page 5 interprets certain markings
into useful information. Both of these references should be
used to identify the heater, its components and optional
equipment.
INSTALLATION OR SERVICE OF THIS WATER HEATER
REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED
TRADESMAN IN THE FIELD INVOLVED. PLUMBING AND
ELECTRICAL WORK ARE REQUIRED.
GENERAL
WARNING
FOR CALIFORNIA INSTALLATION THIS WATER HEATER MUST
BE BRACED, ANCHORED, OR STRAPPED TO AVOID FALLING
OR MOVING DURING AN EARTHQUAKE. SEE INSTRUCTIONS
FOR CORRECT INSTALLATION AND PROCEDURES.
INSTRUCTIONS MAY BE OBTAINED FROM YOUR LOCAL
DEALER, WHOLESALER, PUBLIC UTILITIES OR CALIFORNIA’S
OFFICE OF STATE ARCHITECT, 400 P STREET, SACRAMENTO,
CALIFORNIA 95814.
The installation must conform to these instructions, the local
code authority having jurisdiction, and the requirements of the
power company. In the absence of code requirements follow
the current edition of NFPA-70, The National Electrical Code
which may be ordered from: National Fire Protection Association,
1 Batterymarch Park, Quincy, MA 02269.
LOCATION
The water heater should be located as close as possible to/or
centralized to the water piping system. The water heater should
be located in an area not subject to freezing temperatures.
INSULATION BLANKETS
Insulation blankets available to the general public for external
use on electric water heaters are not approved for use on your
State water heater. The purpose of an insulation blanket is to
reduce the standby heat loss encountered with storage tank
water heaters. Your State water heater meets or exceeds the
National Appliance Energy Act standards with respect to
insulation and standby loss requirements, making an insulation
blanket unnecessary.
The heater should be located in an area where leakage of the
tank or connections will not result in damage to the area adjacent
to the heater or to lower floors of the structure.
When such locations cannot be avoided, a suitable drain pan
should be installed under the heater.
Such pans should be at least two inches deep, have a minimum
length and width of at least two inches greater than the diameter
of the heater and should be piped to an adequate drain.
WARNING
Should you choose to apply an insulation blanket to this heater,
you should follow these instructions (See page 5 for identification
of components mentioned below). Failure to follow these
instructions can result in fire, serious personal injury or death.
Drain pans suitable for these heaters are available from your
distributor or State Water Heaters, 500 Tennessee Waltz Parkway,
Ashland City, TN 37015.
• Do not cover the temperature & pressure relief valve.
• Do not cover the instruction manual. Keep it on the side of
the water heater or nearby for future reference.
• Do obtain new labels from State Water Heaters for placement
on the blanket directly over the existing labels.
Water heater life depends upon water quality, water pressure
and the environment in which the water heater is installed. Water
heaters are sometimes installed in locations where leakage
may result in property damage, even with the use of a drain pan
piped to a drain. However, unanticipated damage can be reduced
or prevented by a leak detector or water shut-off device used in
conjunction with a piped drain pan. These devices are available
from some plumbing supply wholesalers and retailers, and
detect and react to leakage in various ways:
EXTENDED NON-USE PERIODS
CAUTION
HYDROGEN GAS CAN BE PRODUCED IN A HOT WATER
SYSTEM SERVED BY THIS HEATER THAT HAS NOT BEEN USED
FOR A LONG PERIOD OF TIME (GENERALLY TWO WEEKS OR
MORE). HYDROGEN GAS IS EXTREMELY FLAMMABLE. To
• Sensors mounted in the drain pan that trigger an alarm or
turn off the incoming water to the water heater when leakage
is detected.
3
CALCULATING
AMPERAGE/OVERCURRENT PROTECTION
• Sensors mounted in the drain pan that turn off the water supply
to the entire home when water is detected in the drain pan.
• Water supply shut-off devices that activate based on the water
pressure differential between the cold water and how water
pipes connected to the water heater.
• Devices that will turn off the gas supply to a gas water heater
while at the same time shutting off its water supply.
The heaters come from the factory in two configurations:
1. Two wire C-2 circuit for single element heater equipped with
a high limit control, single phase power input.
2. Four wire A-8 circuit for dual element heater equipped with
two high limit controls, single phase or three phase power
input.
CLEARANCES
A minimum clearance of 4” must be allowed for access to
replaceable parts such as thermostats, drain valve and relief valve.
The heater with dual elements is factory wired for connection to
a three wire, three-phase delta branch circuit, non-simultaneous
operation. In addition a ground conductor is required.
Adequate clearance for servicing this appliance should be
considered before installation, such as changing the anodes, etc.
Element connection is for non-simultaneous operation. This
means only one element at a time operates. The wiring diagram,
on page 5, shows the heater may be field converted to
simultaneous element operation by moving the red wire on
“J” terminal to L1. It is then possible for both elements to operate
at once as determined by the thermostats. Regardless of
element connection the heater operates in an “unbalanced”
fashion.
FLOOD WARNING
IF THE HEATER BECOMES IMMERSED IN WATER UP TO OR
ABOVE THE LEVEL OF THE BOTTOM OF THE ELEMENT
DOORS, THE HEATER SHOULD BE EXAMINED BY A
COMPETENT SERVICE PERSON BEFORE IT IS PLACED IN
OPERATION.
The heater may be field converted to single-phase operation by
moving the wire on L3 of the terminal block to L2. L3 is not
used, see page 5.
CHEMICAL VAPOR CORROSION
Water heater corrosion and component failure can be caused by
the heating and breakdown of airborne chemical vapors. Spray
can propellants, cleaning solvents, refrigerator and air
conditioning refrigerants, swimming pool chemicals, calcium
and sodium chloride, waxes, and process chemicals are typical
compounds which are potentially corrosive. These materials
are corrosive at very low concentration levels with little or no odor
to reveal their presence. Products of this sort should not be stored
near the heater.
The heater, now in single-phase non-simultaneous operation,
may be field-converted to single phase simultaneous operation
by moving the red wire on terminal “J” to L1, see page 5.
This is an example of calculating heater amperage for both
types of element operation. From this, the branch circuit
conductor and overcurrent protection sizing can be established.
The example is of a three-phase 240 volt unit with two, 6 kw
elements. The notations are for units field converted to
single-phase. Check the heater model and rating plate for actual
specifications and substitute those values in the following.
ELECTRICAL (GENERAL)
Check the heater model and rating plate information against the
characteristics of the branch circuit electrical supply. DO NOT
CONNECT THE HEATER TO AN IMPROPER SOURCE OF
ELECTRICITY. Contact the heater supplier for conversion
information if necessary.
Voltage applied to the heater should not vary more than +5%
to -10% of the model and rating plate marking for satisfactory
operation.
DO NOT ENERGIZE THE BRANCH CIRCUIT FOR ANY REASON
BEFORE THE HEATER TANK IS FILLED WITH WATER. DOING
SO WILL CAUSE THE HEATING ELEMENTS TO BURN OUT.
The factory wiring is attached to a terminal block within the external
junction box unit. The branch circuit is connected to the terminal
block within this junction box. The water heater should be
connected to a separate, grounded, branch circuit with overcurrent
protection and disconnect switch. The water heater should be
grounded in accordance with national and local codes.
Non-simultaneous:
(as factory wired)
Simultaneous:
(Field conversion)
3000 : 240 = 12.5 amps*
3000 : 240 = 12.5 amps*
12.5 x 1.73 = 21.6 amps
*NOTE: as a single-phase
non-simultaneous unit.
*NOTE: as a single-phase
simultaneous unit the
total is:
12.5 x 2 = 25 amps
The rating of the overcurrent protection should be computed on
the basis of 125 percent of the total connected load amperage.
Where the standard ratings and settings do not correspond
with this computation, the next higher standard rating or setting
should be selected.
Portion of Table 310-16 (NFPA-70) follows:
Allowable Ampacities of Insulated Copper Conductors. Not
more than three conductors in Raceway or Cable or Direct Burial
(Based on Ambient Temperature of 30° C, 86° F).
BRANCH CIRCUIT
The branch circuit wire size should be established through
reference to the current edition of NFPA-70, the
National Electrical Code or other locally approved source in
conjunction with the heater amperage rating. For convenience,
portions of the wire size tables from the Code are reproduced
here. The branch circuit should be sized at 125 percent of the
heater rating and further increase wire size as necessary to
compensate for voltage drop in long runs.
These ampacities relate only to conductors described in Table
310-13 in Code.
For ambient temperatures over 30° C (86° F), see Correction
Factors, Note 13 in Code.
4
Size
AMG
MCM
18
16
14
12
10
8
6
4
3
Size
Temperature Rating of Conductor
See Table 310-13 in Code
60° C
75° C
(140° F)
(167° F)
TYPES:
TYPES:
RUW
RH, RHW, RUH,
(14-2),
(14-2), THW
T, TW,
THWN, XHHW,
UF
USE
--------15
15
20
20
30
30
40
45
55
65
70
85
80
100
AMG
MCM
12
10
8
6
4
3
2
1
Temperature Rating of Conductor
See Table 310-13 in Code
60° C
75° C
(140° F)
(167° F)
TYPES:
TYPES:
RUW
RH, RHW, RUH,
(12-2),
(12-2), THW
T, TW,
THWN, XHHW,
UF
USE
15
15
25
25
30
40
40
50
55
65
65
75
75
90
85
100
Portion of Table 310-18 follows:
Allowable Ampacities of Insulated Aluminum and Copper -Clad Aluminum Conductors.
Not more than three conductors in Raceway or Cable or Direct Burial (Based on Ambient Temperature of 30° C, 86° F. These
ampacities relate only to conductors described in Table 310-13 in Code.
For ambient temperatures over 30° C (86° F), see Correction Factors, Note 13 in Code.
WIRING DIAGRAMS
A-8 CIRCUIT FOR DUAL ELEMENT HEATER
C-2 CIRCUIT
FOR SINGLE
ELEMENT HEATERS
EQUIPPED WITH HIGH
LIMIT CONTROL
FACTORY WIRED
---------- FIELD WIRING
† WHITE FOR 120V
5
TYPICAL PIPING CONNECTIONS
This page shows typical water heater installations by model designations.
DUAL ELEMENTS HEATER
SINGLE ELEMENT HEATER
INSTALL SUITABLE DRAIN PANS UNDER HEATERS TO
PREVENT DAMAGE DUE TO LEAKAGE. REFER TO WATER
HEATER LOCATION ON PAGE 2.
INSTALL THERMAL
EXPANSION TANK IF
CHECK VALVE OR
PRESSURE REDUCING
VALVE IS USED IN
SUPPLY LINE.
INSTALL VACUUM RELIEF
IN COLD WATER INLET
LINE AS REQUIRED BY
LOCAL CODES.
† OVER CURRENT PROTECTION MUST BE SUPPLIED IN WATER HEATER CIRCUIT.
CONSULT LOCAL CODE OR NFPA 70 FOR PROPER INSTALLATION.
* INSTALL IN ACCORDANCE WITH ALL LOCAL CODES.
that any discharge from the valve will exit only within 6 inches
above, or at any distance below, the structural floor and cannot
contact any live electrical part. THE DISCHARGE OPENING
MUST NOT BE BLOCKED OR REDUCED IN SIZE UNDER ANY
CIRCUMSTANCES.
TEMPERATURE AND PRESSURE RELIEF VALVE
CAUTION
TO REDUCE THE RISK OF EXCESSIVE PRESSURES AND
TEMPERATURES IN THIS WATER HEATER, INSTALL
TEMPERATURE AND PRESSURE PROTECTIVE EQUIPMENT
REQUIRED BY LOCAL CODES BUT NOT LESS THAN A
COMBINATION TEMPERATURE AND PRESSURE RELIEF
VALVE CERTIFIED BY A NATIONALLY RECOGNIZED TESTING
LABORATORY THAT MAINTAINS PERIODIC INSPECTION OF
PRODUCTION OF LISTED EQUIPMENT OR MATERIALS, AS
MEETING THE REQUIREMENTS FOR RELIEF VALVE DEVICES
FOR HOT WATER SUPPLY SYSTEMS. (ANSI Z21.22.)
DUAL ELEMENT
RATING PLATE
This valve must be marked with a maximum set pressure not to
exceed the marked maximum working pressure of the water
heater. Install the valve into an opening provided and marked for
this purpose in the water heater, and orient it or provide tubing so
6
SINGLE ELEMENT
RATING PLATE
Figure 3 shows the approximate time-to-burn relationship for
normal adult skin. The thermostats on your water heater have a
linear relationship between degrees of angular rotation and the
corresponding change in temperature. Thus rotating the
temperature adjustment indicator 30 angular degrees will result
in a 10 degree Fahrenheit change in water temperature.
OPERATION
CAUTION
DO NOT OPERATE THE HEATER WITHOUT INSTALLING AN
APPROVED TEMPERATURE AND PRESSURE RELIEF VALVE
IN THE OPENING PROVIDED IN THE TANK. GROUND THE
HEATER TO GUARD AGAINST ELECTRIC SHOCK FROM THE
HEATER OR WATER SYSTEM. NEVER OPERATE THE HEATER
WITHOUT FILLING WITH WATER PER THE FILLING
INSTRUCTIONS. FAILURE TO DO SO WILL DAMAGE INTERNAL
PARTS.
FILLING
1. Close the water heater drain valve by turning hand-wheel to
right (clockwise).
Temperature
Time to Produce 2nd & 3rd
Setting
Degree Burns on Adult Skin
180° F (82° C)
160° F (71° C)
150° F (66° C)
140° F (60° C)
130° F (54° C)
125° F ( 52° C)
120° F (49° C)
Nearly instantaneous
About 1/2 second
About 1-1/2 seconds
Less than 5 seconds
About 30 seconds
About 2 minutes
More than 5 minutes
2. Open a nearby hot water faucet to permit the air in the system
to escape.
FIGURE 3.
TEMPERATURE ADJUSTMENT
3. Fully open the cold water inlet valve allowing the heater and
piping to be filled.
The water temperature is controlled by surface mounted
thermostats with hi-limit. There is one mounted firmly against
the tank directly above each element. The thermostats of A-8
circuit are adjustable from approximately 120°F (49°C) (lowest
setting) to 180°F (82°C) (highest setting). The thermostat of C-2
circuit is adjustable from approximately 110°F (43°C) to 170°F
(77°C) with a factory set point 120°F (49°C). The over temperature
device (hi-limit) attached to each thermostat has a manual reset.
4. Close the hot water faucet as water starts to flow.
5. Turn on the electrical switch to the water heater.
WARNING
DO NOT ATTEMPT TO OPERATE HEATER WITH COLD WATER
INLET VALVE CLOSED.
TEMPERATURE REGULATION
DANGER
THE WATER HEATER IS EQUIPPED WITH AN ADJUSTABLE
THERMOSTAT TO CONTROL WATER TEMPERATURE. HOT
WATER AT TEMPERATURES DESIRED FOR AUTOMATIC
DISHWASHER AND LAUNDRY USE CAN CAUSE SCALDS
RESULTING IN SERIOUS PERSONAL INJURY AND/OR DEATH.
THE TEMPERATURE AT WHICH INJURY OCCURS VARIES WITH
THE PERSON’S AGE AND TIME OF EXPOSURE. THE SLOWER
RESPONSE TIME OF CHILDREN , AGED OR DISABLED
PERSONS INCREASES THE HAZARD TO THEM. NEVER ALLOW
SMALL CHILDREN TO USE A HOT WATER TAP, OR TO DRAW
THEIR OWN BATH WATER. NEVER LEAVE A CHILD OR
DISABLED PERSON UNATTENDED IN A BATHTUB OR
SHOWER.
ADJUSTABLE UPPER
THERMOSTAT BEHIND
JUNCTION BOX DOOR
ADJUSTABLE
LOWER (SINGLE)
THERMOSTAT
FIGURE 4.
NOTE: It is not necessary to adjust the upper thermostat for a
dual element unit. However, if it is adjusted above the factory set
point 140°F (60°C) it is recommended that it not be set higher
than the lower thermostat setting.
To change the temperature setting:
DANGER
1. Turn off the heater electrical supply. Do not attempt to adjust
thermostat with power on.
It is recommended that lower water temperatures be used to
avoid the risk of scalding. It is further recommended, in all cases,
that the water heater thermostats be set for the lowest
temperature which satisfies your hot water needs, see Figure 3.
This will also provide the most energy efficient operation of the
water heater.
2. Open the junction box door (for upper thermostat of dual
element water heater only) and/or remove the (lower)
thermostat access panel. Do not remove the plastic personnel
protectors covering the thermostats. The thermostat is factory
pre-set at 140°F (60°C) for dual element units or at 120°F
(49°C) for single element units.
7
3. Using a flat tip screwdriver, rotate the adjusting knob to the
desired temperature setting.
Once a month the temperature and pressure relief valve should
be checked to ensure that it is in operating condition. Lift the
lever on the valve several times until the valve seats properly and
operates freely.
4. Replace the covers and access panels, and turn on heater
electrical supply.
CAUTION
THE WATER PASSING OUT OF THE VALVE DURING THIS
CHECKING OPERATION MAY BE EXTREMELY HOT.
Valves for reducing point-of-use temperature by mixing cold and
hot water are available, see Figure 5 . Also available are
inexpensive devices that attach to faucets to limit hot water
temperatures. Contact a licensed plumber or the local plumbing
authority.
It is recommended that the drain valve on this unit be opened
once a month and 1 to 2 gallons of water be allowed to drain
out. This will help to prevent sediment buildup in the tank
bottom.
A non-adjustable high temperature limit control operates before
steam temperatures are reached. The high limit is in the same
area as the upper thermostat and must be reset manually when
it operates. BECAUSE THE HIGH LIMIT OPERATES ONLY WHEN
ABNORMALLY HIGH WATER TEMPERATURES ARE PRESENT,
IT IS IMPORTANT THAT A QUALIFIED SERVICE AGENT BE
CONTACTED TO DETERMINE THE REASON FOR OPERATION
BEFORE RESETTING.
ANODE INSPECTION AND REPLACEMENT
This water heater is equipped with a sacrificial anode. Anodes
protect the glass-lined tank from corrosion by sacrificing
themselves through electrolysis. When the anode material is
consumed, there is no more protection and corrosion of the
tank accelerates.
Inspection of the anode every 6 to 12 months allows you to
identify a spent anode and replace it. Replace the anode
when its diameter is 3/8" (1 cm) of an inch, or annually which
ever is first. Aggressive, very hot and softened water causes
rapid consumption of the anode requiring frequent
inspections. Anodes are available from your distributor or
A.O. Smith.
FIGURE 5.
TROUBLESHOOTING
DRAINING
CHECKLIST
If the heater is to be shut down and exposed to freezing
temperatures, it must be drained. Water, if left in the tank and
allowed to freeze, will expand and damage the heater.
Before contacting your dealer, check the water heater to see if
the apparent malfunction is caused by some external fault.
Consulting this checklist may eliminate the need for a repair call
and restore hot water service.
1. Turn off the electrical switch and cold water inlet valve.
NOT ENOUGH OR NO HOT WATER
• If desired, a hose may be connected to the drain valve
to carry the water away.
1. Be certain that the water heater electrical switch is turned to
the ON position.
2. Open a nearby hot water faucet and the heater drain
valve.
• In some areas an additional special meter, controlled
by a timer, is used to govern the periods electricity is
available. If the heater operates on a timed electrical
circuit, recovery will be limited to certain hours.
• Be careful to grasp the drain valve handle in such a
way that the hand will not be exposed to hot water.
3. The drain valve must be left open during the shutdown
period.
2. Check for loose or blown fuses in the water heater circuit.
• To restart heater, refer to the foregoing FILLING
instructions.
3. If the water has been excessively hot and is now cold, the high
temperature limit control may have operated. To restore
service, contact your dealer or utility company. Refer to
TEMPERATURE REGULATION section.
MAINTENANCE
Electric water heater maintenance consists of cleaning the tank
and removing lime (or scale) from the heating elements in hard
water areas. Tank flushing should be performed monthly. Tank
sediment removal and element lime scale removal must be
performed when needed as determined by periodic inspections.
Your dealer should be contacted for element cleaning. In some
instances a hissing sound may be heard as the scale builds up.
This noise is normal.
4. The storage capacity of the heater may have been exceeded
by large demands of hot water.
5. If the heater was installed when incoming water temperatures
were warm, colder incoming temperatures will create the
effect of less hot water.
6. Look for leaking or open hot water faucets.
8
Excessive water pressure is the most common cause of relief
valve leakage. It is often caused by a “closed system”. A check
valve in the inlet system will not permit the expanded hot water
volume to equalize pressure with the main. A relief valve must
release this water or the water heater or plumbing system will
be damaged.
WATER IS TOO HOT
1. Refer to TEMPERATURE REGULATION section.
WATER HEATER MAKES SOUNDS
1. See MAINTENANCE
Damage to the water heater caused by a closed system is not
covered by the limited warranty. The only solution is to install a
thermal expansion tank between the check valve and the cold
water inlet to the heater.
WATER LEAKAGE IS SUSPECTED
1. Check to see if the heater drain valve is tightly closed.
2. The apparent leakage may be condensation which forms on
cool surfaces of the heater and piping.
IF YOU CANNOT IDENTIFY OR CORRECT
THE SOURCE OF THE MALFUNCTION
3. If the outlet of the relief valve is leaking it may represent:
1. Place the water heater electrical switch in the OFF position.
• Excessive water pressure.
2. Close the cold water inlet valve to the heater.
• Excessive water temperature.
• Faulty relief valve.
3. Contact your dealer.
NOTES
9
LEAKAGE CHECKPOINTS
Instructions: Use this illustration as a guide when checking for sources of water leakage. You or your dealer may be able to correct what
appears to be a problem. NOTE: Cover and Insulation shown removed to reveal tank top
Where possible remove or lift top cover to
examine threads of fittings installed into tank
for evidence of leakage. Correct fitting leaks
as necessary.
Relief Valve
Condensation and dripping may appear
on pipes when cold water temperature
is low. Pipe fitting may be leaking.
Water leaks at the elements
may be due to:
1. Defective element which leaks at
terminals or thru flange. Replace
element*.
To Open Drain
Anode Rod (Some Models)
Relief valve operation and leakage may
be due to water expansion during
heating cycle or foreign material on
seat of valve. If the valve is not piped to
an open drain the released water could
be mistaken for a leaking heater. Check
for leakage where the threaded portion
of the relief valve enters the tank.
Remove valve* if indicated and repair
with pipe joint compound.
2. Loose element/gasket leak:
(a) Screw-in type: tighten with
1-1/2” socket wrench or Part Number
23985 wrench. If leak continues,
remove element*, discard gasket
and clean thread areas. Apply
nonhardeningPermatex Number 2 to
thread areas, install new gasket and
screw element into fitting until it
seats. Tighten 1/2 to 3/4 turn with
wrench.
To Open Drain
(b) Flange type: tighten screw with
wrench. If leak continues remove
element* and discard gasket. Clean
gasket seating areas and re-install
element with new gasket. NOTE: Part
Number 40000-1 scale cleaning
replacement screws available where
threads have become rusted or
damaged, preventing tightening.
Water on the side of the tank may be
condensation due to the panel or
insulation not being in place.
Drain valve leakage could be from the
valve itself.* To check for leakage
where threaded portion enters tank,
insert Q-tip or similar absorbent
material between jacket opening and
valve to swab spud area. Remove valve*
if leak is indicated and repair with pipe
joint compound.
All water which appears at the heater
bottom or on the surrounding floor may
be caused by condensation, loose
connections or relief valve operation and
leakage. Do not replace the heater until
full inspection of all potential leak points
is made and corrective steps taken to
stop the leak. Leakage from other
appliances, water lines or ground
seepage should also be suspected until
proven otherwise.
*Contact your dealer as it is necessary to
shut off electricity and drain tank to perform
procedure.
10
REPAIR PARTS LIST
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.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION:
Selling prices will be furnished on request or parts will be
shipped at prevailing prices and you will be billed accordingly.
• MODEL NUMBER
• VOLTAGE AND ELEMENT WATTAGE
• SERIAL NUMBER
• PART DESCRIPTION
The model number of your Water Heater will be found on the
rating plated located above the lower access panel.
PCE 6 thru PCE 20 - refer to Repair Parts Table on page 12 for
Single Element Electric Units.
DRAIN VALVE
(not supplied with heater)
Part No. 9003906
11
Item
Description
PCE-610MSA
Series 102
1A .........
1B .........
2 ...........
3 ...........
4 ...........
5 ...........
6 ...........
7 ...........
PCE-1010MSA
Series 102
PCE-1710MSA
Series 102
PCE-2010MSA
Series 102
Anode, Alum... ....................................... 9003942 .............. 9003942 .............. 9003943 ............... 9003944
Anode, Mag. .......................................... 9002110 ................ 9002110 .............. 9004302 ............... 9003721
Collar, Pipe ............................................ 9004610 .............. 9004610 .............. 9004610 ............... 9004610
Cover, Front ........................................... 9003900 .............. 9003900 .............. 9003900 ............... 9003900
ELEMENT, HEATING ................................... SEE ELEMENT CHART ON PAGE 14 .................................
Gasket, Element .................................... 9000308 .............. 9000308 .............. 9000308 ............... 9000308
Opening Insulation ................................... 43307 .................. 43307 .................. 43307 ................... 43307
*Instruction Manual ............................. 195202-002 .......... 195202-002 ......... 195202-002 .......... 195202-002
LABEL
8 ................ *Scald Warning .................................. 181138 ................. 181138 ................ 181138 ................. 181138
9 ................ *Temperature Warning ........................ 182734 ................ 182734 ................ 182734 ................. 182734
10 ......... Personnel Protector ............................... 9003899 .............. 9003899 .............. 9003899 ............... 9003899
11 .......... Pipe Nipple ............................................. 194130 ............... 194130-3 ............. 194130-3 .............. 194130-3
12 ......... Plate, Knockout ..................................... 43293-1 ................ 43293-1 ............... 43293-1 ................ 43293-1
PLUG
13 .............. Cap ................................................... 42306-1 ................ 42306-1 ............... 42306-1 ................ 42306-1
14 .............. Pipe .................................................. 9001437 .............. 9001437 .............. 9001437 ............... 9001437
15/16 ..... Thermostat with High Limit Switch ......... 9003945 .............. 9003945 .............. 9003945 ............... 9003945
17 ......... Bracket, Thermostat .............................. 9003898 .............. 9003898 .............. 9003898 ............... 9003898
18 ......... Valve, Relief ........................................... 9003484 .............. 9003741 .............. 9003741 ............... 9003741
*Not Illustrated.
Standard Hardware Items May Be Purchased Locally.
Underlined Parts Are Recommended For Emergency Replacement.
12
PCE 3020RTA thru PCE 12020 RTA
(Refer to Repair Parts Table on Pages 14 & 15
for dual elements electric units)
PCE 3020LSA thru PCE 5020LSA
(Refer to Repair Parts Table on Pages 14 & 15
for dual elements electric units)
13
Item
Description
1A .........
1B .........
2 ...........
3 ...........
4 ...........
5 ...........
6 ...........
7 ...........
8 ...........
9 ...........
10 .........
11 ..........
12 .........
13 .........
14 .........
15* ........
16* ........
PCE 30 20LSA
Series 110
PCE 40 20LSA
Series 110
PCE 50 20LSA
Series 110
PCE 3020RTA
Series 110
Anode, Alum... .................................. 9003888 ................ 9003889 ................ 9003889 ............... 9003944 ......
Anode, Mag. ..................................... 9003721 ................ 9003922 ................ 9001834 ............... 9003721 ......
T&P Relief Valve ............................... 9003741 ................ 9003741 ................ 9003741 ............... 9000071 ......
Gasket, Element .............................. 90000308 .............. 90000308 .............. 90000308 ............. 90000308 .....
ELEMENT, each ...................................... (SEE ELEMENT & WATTAGE CHART BELOW) ............................
Upper Thermostat w/Hi Limit ............. 9003896 ................ 9003896 ................ 9003896 ............... 9003896 ......
Lower Thermostat w/Hi Limit ............. 9003897 ................ 9003897 ................ 9003897 ............... 9003897 ......
Thermostat Bracket, each ................. 9003898 ................ 9003898 ................ 9003898 ............... 9003898 ......
Terminal Cover, each ......................... 9003899 ................ 9003899 ................ 9003899 ............... 9003899 ......
Lower Access Panel ......................... 9003900 ................ 9003900 ................ 9003900 ............... 9003900 ......
Dip Tube ........................................... 9003901 ................ 9003901 ................ 9003901 ............... 9003902 ......
Power Terminal ................................. 9005719 ................ 9005719 ................ 9005719 ............... 9005719 ......
Drain Valve ........................................ 9003906 ................ 9003906 ................ 9003906 ............... 9003906 ......
Wiring Diagram Label ......................... 195203 .................. 195203 .................. 195203 ................ 195203 .......
Scald Warning Label .......................... 181138 .................. 181138 .................. 181138 ................. 181138 .......
Junction Box Assembly ..................... 195171 .................. 195171 .................. 195171 ................ 195171 .......
Manual ............................................ 195202-002 ............ 195202-002 .......... 195202-002 .......... 195202-002 ...
*Not Illustrated.
Standard Hardware Items May Be Purchased Locally.
Underlined Parts Are Recommended For Emergency Replacement.
COPPER SHEATH ELEMENT AND WATTAGE CHART
K.W.
ELEMENT
WATTAGE
120V
PART NO.
208V
PART NO.
240V
PART NO.
277V
PART NO.
480V
PART NO.
1.0
1000W
---
9002863
9000143
---
---
1.5
1500W
9002963
9000145
9002864
9001225
---
2.0
2000W
9003947
9002858
9000145
9004709
---
2.5
2500W
9002859
9004712
9002860
9002890
9002861
3.0
3000W
9002862
9002868
9003959
9003958
9003961
3.5
3500W
---
9005708
9004712
---
---
MAX 3.5KW INPUT FOR 6 GALLON UNITS, ELEMENTS BELOW DOTTED LINE CANNOT BE USED ON 6 GALLON UNITS
4.0
4000W
---
9002867
9002868
9001229
9002869
4.5
4500W
---
9003952
9005708
9003960
9001225
5.0
5000W
---
9001224
9003957
9001231
9001236
5.5
5500W
---
9002871
9002867
---
9002872
6.0
6000W
---
9003953
9003952
9002874
9002875
14
PCE 40 20RTA
Series 110
PCE 52 20RTA
Series 110
PCE 66 20RTA
Series 110
PCE 82 20RTA
Series 110
PCE 120 20RTA
Series 110
.... 9003889 .......................... 9003889 .......................... 9000029 ......................... 9003892 ....................... 9003893
.... 9003483 .......................... 9003487 .......................... 9003465 ......................... 9003650 ....................... 9000734
.... 9000071 .......................... 9000071 .......................... 9000071 ......................... 9000071 ....................... 9000071
.... 9000308 .......................... 9000308 .......................... 9000308 ......................... 9000308 ....................... 9000308
................................................... (SEE ELEMENT & WATTAGE CHART ON PAGE 14) ..................................
.... 9003896 .......................... 9003896 .......................... 9003896 ......................... 9003896 ....................... 9003896
.... 9003897 .......................... 9003897 .......................... 9003897 ......................... 9003897 ....................... 9003897
.... 9003898 .......................... 9003898 .......................... 9003898 ......................... 9003898 ....................... 9003898
.... 9003899 .......................... 9003899 .......................... 9003899 ......................... 9003899 ....................... 9003899
.... 9003900 .......................... 9003900 .......................... 9003900 ......................... 9003900 ....................... 9003900
.... 9003903 .......................... 9003904 .......................... 9003905 ......................... 9003905 ....................... 9005709
.... 9005719 .......................... 9005719 .......................... 9005719 ......................... 9005719 ....................... 9005719
.... 9003906 .......................... 9003906 .......................... 9003906 ......................... 9003906 ....................... 9003907
..... 195203 ............................ 195203 ............................ 195203 .......................... 195203 ......................... 195203
......181138 ............................ 181138 ............................ 181138 ........................... 181138 ......................... 181138
..... 195171 ............................ 195171 ............................ 195171 .......................... 195171 ......................... 195171
.. 195202-002 ..................... 195202-002 .................... 195202-002 .................... 195202-002 .................. 195202-002
*Not Illustrated.
Standard Hardware Items May Be Purchased Locally.
Underlined Parts Are Recommended For Emergency Replacement.
INCOLOY SHEATH ELEMENT AND WATTAGE CHART
(FOR SPECIAL MAG. ANODE/INCOLOY ELEMENT UNITS
K.W.
ELEMENT
WATTAGE
120V
PART NO.
208V
PART NO.
240V
PART NO.
1.5
1500W
9004279
9004283
9004290
---
---
2.0
2000W
9004280
9004284
9004283
9004290
9004298
2500W
9004281
9004285
9004291
9004295
9004299
2.5
277V
PART NO.
480V
PART NO.
Incoloy Elements Below dotted line cannot be used on 6 gallon units because of element length
3.0
3000W
9004282
9004751
9000664
9004296
9004300
3.5
3500W
---
9003210
9004292
---
---
4.0
4000W
---
9004294
---
9004543
---
4.5
4500W
---
9004287
9003210
9004297
9004301
5.0
5000W
---
---
9004293
---
---
5.5
5500W
---
9004288
9004294
---
---
6.0
6000W
---
9004289
9004287
---
---
15
500 Tennessee Waltz Parkway, Ashland City, TN 37015
Phone: 800-821-2017 Fax: 800-644-9306
www.statewaterheaters.com
16
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