Amerec AK Series Quick guide

WARNING
The AMEREC steam generators come assembled and ready for installation. Check that the size and rating of
the generator is suitable for your application, refer to Steam Room Construction and Generator Sizing Guide
(AMEREC document 4211-38).
IMPORTANT
An exhaust fan installed outside the steam
room is strongly recommended to remove
excess steam from the bathroom or shower
area.
AMEREC STEAMBATH GENERATORS
(AK and 3K MODELS) 230-400V
Note:Tobeused with the K30,K60,KT60 orR30K Control.
SAVE THESE INSTRUCTIONS
READ ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLATION.
POST "WARNING" LABEL OUTSIDE STEAMBATH FOR SAFETY
WARNINGS. REQUIRED POSTING ON DOOR OF STEAM ROOM
OR ADJACENT TO DOOR FOR ALL COMMERCIAL
INSTALLATIONS.
SECTION 1: GENERAL INFORMATION
AK and 3K Series Installation and Service
Instructions
Electrical grounding is required on
all AMEREC Steambath Generators.
All electrical supplies should be
disconnected when servicing
generator.
All wiring must be installed by a
licensed electrical contractor in
accordance with local and national
codes.
All plumbing must be installed by a
licensed plumber in accordance with
all applicable local and national
codes.
AK series generators are for indoor
use only.
AK series generators are not for
space heating purposes.
Be certain that steambath enclosures
are properly sealed to avoid water
damage from escaping steam. It is
recommended that 100% silicone
caulk be used to seal all pipes and
fittings. Steam must be prevented
from escaping into the wall cavity.
Never shut off the water to a steam
generator that is in use.
Electric Shock Hazard - High voltage
exists within this equipment. There
are no user serviceable parts in this
equipment.
K60/KT60
OR
K30
OR
R30K
Possible Controls
AK GENERATOR
4211-139-A 08-14-2009
REDUCE THE RISK OF
1. Exit immediately if uncomfortable, dizzy or sleepy. Staying too long in
a heated area is capable of causing overheating.
REDUCE THE RISK OF
Use care when entering or exiting the steam room, floor may be slippery.
NOTE: For additional safety instructions, see owner’s manual.
CAUTION!
Do not contact steam head. Stay at least 12" away
from hot steam escaping from the steam outlet.
OVERHEATING AND SCALDING
2. Supervise children at all times.
3. Check with a doctor before use if pregnant, diabetic, in poor health or
under medical care.
4. Breathing heated air in conjunction with consumption of alcohol, drugs
or medication is capable of causing unconsciousness.
SLIPPING AND FALL INJURY
WARNING

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
Section Description Page
Important Safety Instructions 3
2 Select Mounting Location 4
4 Mounting the Generator 4
4.5 Water Quality Requirements 4
5 Plumbing Instructions 5-6
6 Wiring Instructions 7
- Electrical Information Chart 8
7 Operational Test 9
8 Service 9-11
9 Optional Modifications 12
10 Trouble Shooting 12-13
- Exploded Parts Diagram 14-15
- Wiring Diagram 16
Table of Contents

page 3
AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
IMPORTANT SAFETY INSTRUCTIONS
1. READ AND FOLLOW ALL INSTRUCTIONS.
2. WARNING - To reduce the risk of injury, do not permit children to use this
product unless they are closely supervised at all times.
3. WARNING - To reduce the risk of injury:
a. The wet surfaces of steam enclosures may be slippery. Use care when
entering or leaving.
b. The steam head is hot. Do not touch the steam head and avoid the
steam near the steam head.
c. Prolonged use of the steam system can raise excessively the internal
human body temperature and impair the body’s ability to regulate its
internal temperature (hyperthermia). Limit your use of steam to 10 - 15
minutes until you are certain of your body’s reaction.
d. Excessive temperatures have a high potential for causing fetal damage
during the early months of pregnancy. Pregnant or possibly pregnant
women should consult a physician regarding correct exposure.
e. Obese persons and persons with a history of heart disease, low or high
blood pressure, circulatory system problems, or diabetes should consult
a physician before using a steambath.
f. Persons using medication should consult a physician before using a
steambath since some medication may induce drowsiness while other
medications may affect heart rate, blood pressure and circulation.
4. WARNING - Hyperthermia occurs when the internal temperature of the body
reaches a level several degrees above the normal body temperature of 98.6
degrees F. The symptoms of hyperthermia include an increase in the internal
temperature of the body, dizziness, lethargy, drowsiness and fainting. The effect
of hyperthermia include:
a. Failure to perceive heat:
b. Failure to recognize the need to exit the steambath:
c. Unawareness of impending risk:
d. Fetal damage in pregnant women:
e. Physical inability to exit the steambath: and
f. Unconsciousness.
WARNING - The use of alcohol, drugs or medication can greatly increase the
risk of hyperthermia.
SAVE THESE INSTRUCTIONS

page 4
AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
WATER SHUT-OFF VALVE
OPTIONAL FILTER
DO NOT CONNECT TO WATER
SUPPLY WITH SADDLE FITTING
1/2" STEAM LINE TO ROOM
UNION
PRESSURE RELIEF VALVE
BALL VALVE
UNION
UNION
1/2" NPT MALE x
SWEAT ADAPTER
3/8" COMPRESSION
ADAPTER
150 mm FROM
TOP OF TUB
35 mm
DIAMETER HOLE
1/2" NPT FITTING
9,5 mm
FROM WALL
OR 305 mm
FROM FLOOR
DIAGRAM 1 DIAGRAM 2
DIAGRAM 3
1/2" NPT MALE x
SWEAT ADAPTER
13" SERVICE
CLEARANCE

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
SEE DIAGRAMS
The AMEREC steam generator can be hung on a wall
or sit on its base. The best mounting location will
satisfy all or most of the following:
1. The steam line should slope to allow condensation
to drain. Condensation should drain into the steam
room.
2. The steam line should be less than 6 M long.
3 M preferred. Steam lines over 6 M long should be
insulated.
3. The mounting location should minimize the num-
ber of bends and elbows in the steam line.
4. The generator should be installed in a dry, well
ventilated area. Suggested locations are under a
vanity, in a closet, attic, crawl space or basement.
5. The location should provide clearance for service
and element removal. See diagram 2.
6. The mounting location should allow for a drain hook
up.
7. The generator must be mounted in a minimum 0,2
cubic meter space.
8. The generator should not be mounted in an area
subject to freezing.
SECTION 2: SELECT MOUNTING LOCATION
Do not mount outdoors.
Protect from freezing.
Unit must be located as to allow
access for service.
The generator will not operate
properly, unless it is mounted level
with the arrows pointed up.
Do not put a shut off valve in the
steam line. Avoid traps and valleys
where water could collect and cause a
steam blockage. The hot steam line
must be insulated against user
contact.
Centering the steam pipe is critical in
rooms made of plastic, acrylic, resin,
fiberglass or similar materials.
Allowing the steam pipes to touch
materials not rated for 100°C or
higher will result in damage to these
materials.
Do not install the steam head near
bench(es) or where steam may spray
or where condensation will drip on
the user as this will present a scald
hazard.
The steam pipe entry and any other
entry into the steam room must be
caulked to avoid damage caused by
steam leakage into the wall.
SECTION 4: MOUNTING THE GENERATOR
Floor Mounting:
1. In general the width of the unit allows it to sit on
a shelf, across the ceiling joists or on a floor. The
generator must be restrained from moving. Normally
the piping will provide adequate support. If not,
additional support must be provided.
2. All floor installed generators must have provision
for routine draining of the tank.
Wall Mounting:
1. Note the location of the mounting holes on the
back of the generator. The screws must set directly
into studs or equivalent supports. Drill pilot holes on
254 and 305 centers and install the two #10 1½"
screws provided.
2. Carefully hang the generator on the two 305 mm
screws. Tighten the screws.
3. Install two #10 1-1/2" screws through the genera-
tor into the 254 mm holes and tighten the screws to
secure the generator to the wall.
4. Replace the generator's front cover and secure it
with the screws provided.
SEE DIAGRAM
WARNING
SECTION 4.5: Water Quality Requirements
The nature of a boiler or steambath generator requires testing of the feedwater to avoid potential
high concentrations of impurities which can cause a deposit or scale to form on the internal sur-
faces. This deposit or scale can interfere with the equipments proper operation and even cause
premature boiler or generator failure. Concentration of impurities is generally controlled by treat-
ing the feedwater and or "blowing down" the generator or boiler when it is not heating. The "blow
down" process involves removing a portion of the tank water with high solid concentration and
replacing it with makeup water.
To insure proper operation, the water supply should be tested prior to operating the equipment.
There are several treatment processes which can be used if you have a problem with hard water.
A local reliable water treatment company can recommend the appropriate treatment if required.
The recommended feedwater quality is listed below.
Feedwater Quality
Hardness, ppm 10 - 30 (.5 - 1.75 gpg)
T-Alkalinity, ppm 150 - 700 (8.75 - 40.8 gpg)
Silica Range, ppm 15 - 25 (.88 - 1.45 gpg)
PH (strength of alkalinity) 10.5 - 11.5

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
DIAGRAM 5 DIAGRAM 6
CONTROL
HOUSING
SEALANT
(MUST FILL GROUT
LINE FOR TILE
WALLS).
6" MIN -
7'
MAX
TEMPERATURE
SENSOR
(K60 or K30 only)
STEAM
CONTROL
(1,2 M up not
directly over
steamhead)
TEMPERATURE
SENSOR CABLE
(K60 or K30 only)
CONTROL
CABLE
CONTROL
HOUSING
DECORATIVE CONTROL
COVER PLATE
CONTROL HOUSING
MOUNTING SCREWS
50 mm DIAMETER
HOLE IN FINISHED
WALL
0,6 mm 35 mm
DIAMETER
HOLE
S
P
A
C
E
R
S
T
U
D
1/2" NPT
SWEAT
ADAPTER
CENTER IN
OPENING
0,6 mm
9,5 mm
FROM
WALL 1/2" NPT FITTING
FRAGRANCE
RESERVOIR
STEAM HEADESCUTCHEON35 mm DIAMETER HOLE
MOUNTING
BRACKET
(DO NOT OVER
TIGHTEN)
DIAGRAM 7 DIAGRAM 8
DIAGRAM 9 DIAGRAM 10
STEAM HEAD INSULATOR
TEMPERATURE
SENSOR
(K60 or K30 only)
STEAM
CONTROL
OPTIONAL AUTOMATIC
DRAIN CONNECTION
TEMPERATURE SENSOR PLUG (J4)
STEAM CONTROL PLUG
R30K (S30)
K30 PRIMARY (S30)
KT60/K60 PRIMARY (S60A)
KT60/K60 SECONDARY (S60B)
S30
S60A
S60B

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
SEE DIAGRAMS
All plumbing shall be installed by a licensed plumber
and conform with local & national codes.
Materials (locally available):
- 3/8" O.D. copper tube for the water supply to the
generator.
- 3/8" water supply shut-off valve.
- 3/8" supply valve housing and filter (optional
depending on local water conditions).
- 3/8" O.D. compression to 3/8" male NPT adapter.
- 1/2" copper sweat unions. (2)
- 1/2" copper pipe for the tank drain.
- 1/2" copper pipe and 1/2" female NPT sweat adapter
for the steam line between the generator and the
steam room.
- 3/4" copper pipe, fittings, and a sweat union for
the Pressure Relief Valve drain.
- Tube DAP 100% silicone caulk.
- Rectorseal No. 5 pipe compound.
1. INSTALL WATER LINE
IMPORTANT
Input water pressure must be 138 to 690 kPa.
Run 3/8" copper tube between the nearest cold water
line and the WATER INLET fitting on the generator.
Locate a shut-off valve near the generator. Connect
this line to the generator with a 3/8" compression
adapter. When tightening this fitting always use two
wrenches so there will be no strain on the water inlet
valve.
IMPORTANT
If the generator is mounted in a place difficult
for the home owner to access, the water
supply shut- off valve should be located where
it can be quickly accessed in an emergency.
2. INSTALL STEAM LINE
A. At the generator: Install a 1/2" male NPT sweat
adapter directly into the tank. Install a 1/2" union in
the steam line.
B. Run the 1/2" copper steam line from the generator
to the steamroom. Refer to SECTION 2: SELECT
MOUNTING LOCATION.
C. The steam line should enter the steam room
12,5 mm above the floor or at least 150 mm above a
tub rim or ledge. See diagram 1.
D. At the steam room: Drill/prepare a 35 mm hole for
the steam line entry. Center the 1/2" copper steam
pipe in the 35 mm hole. See diagram 5.
- Terminate the steam line with a 1/2" NPT male
adapter. Stub the line out into the room 9,5 mm
from the finished surface.
- Secure the steam line to a structural member.
SECTION 5: PLUMBING INSTRUCTIONS
WARNING
3. INSTALL STEAM HEAD INSULATOR: Apply sili-
cone caulk to the finished wall side of the steam head
insulator and screw on hand tight until it is flush with
the wall with the opening pointing down. If a hand
tight fit does not align with the opening pointing
down, use teflon tape on the steam line threads to
adjust the fit.
4. INSTALL STEAM HEAD AND ESCUTCHEON: Place
the escutcheon over the steam head insulator then
slide the steam head on until the escutcheon rests
firmly against the finished wall. Tighten the hex head
screw underneath the steam head to secure it in place
with the allen wrench provided. The steam head
should be level with its fragrance reservoir at the top.
See diagram 6.
IMPORTANT
Check all of the standard fixtures in the steam
room. All fixture penetrations must be sealed
with 100% silicon caulk to avoid moisture
damage within walls.
5. INSTALL PRESSURE RELIEF VALVE
Install the pressure relief valve into its port on the
generator. The pressure relief valve outlet must drain
in accordance with local and national codes.
6. INSTALL DRAIN VALVE
Install 1/2" NPT male sweat adapter directly into the
tank as shown in diagram 2. Install a 1/2" union. Run
a 1/2" copper drain line to a gravity flow drain. Do not
run the drain uphill. The drain must be connected in
accordance with local and national codes. See dia-
gram 2.
Do not connect the overpressure
device output into the steam line.
Do not connect the drain valve into
the steam line.
Do not mount outdoors.
Protect from freezing.
Unit must be located as to allow
access for service.
The generator will not operate
properly, unless it is mounted level
with the arrows pointed up.
Do not put a shut off valve in the
steam line. Avoid traps and valleys
where water could collect and cause a
steam blockage. The hot steam line
must be insulated against user
contact.
Centering the steam pipe is critical in
rooms made of plastic, acrylic, resin,
fiberglass or similar materials.
Allowing the steam pipes to touch
materials not rated for 100°C or
higher will result in damage to these
materials.
Do not install the steam head near
bench(es) or where steam may spray
or where condensation will drip on
the user as this will present a scald
hazard.
The steam pipe entry and any other
entry into the steam room must be
caulked to avoid damage caused by
steam leakage into the wall.
IMPORTANT
If the steam line is in an area where the
temperature will be below 4°C or if the line
is more than 6 M long, best results can be
obtained by insulating the steam pipe.
IMPORTANT
Do not use a saddle valve or saddle fitting for
the water shut-off valve.
Flush water supply line before final hookup.

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
The pressure relief valve must be
installed in such a fashion that the
risk of scalding is reduced to a
minimum. Draining the pressure
relief valve into the steam room may
present a scald hazard.
Boiling water may be discharged from
the drain. Proper precaution should
be taken too insure safety.
Draining the tank into the steam room
may present a scald hazard and/or
damage materials used to construct
the steam room.
Electrical shock hazard - Disconnect
all electrical power before servicing
the generator. All wiring should be
installed by a licensed electrical
contractor in accordance with local
and national codes.
The generator is designed for hookup
with copper wire only.
1. CONTROL CABLE ROUGH-IN
The low voltage control can be mounted up to 7,6 M
from the generator either inside or outside the steam
room for the K30, K60 or R30K control but with a built
in temperature sensor, the KT60 must be mounted
inside the steam room, also see #6 optional second-
ary generator control. String the 7,6 M cable from the
control location through 13 mm holes in the wall
studs or ceiling joists to the generator. Note: Do not
staple through or damage cable. Use factory supplied
cables only. Optional for tile rooms, a 2 gang rough-
in box may be installed at the desired control mount-
ing location. A mounting plate with proper diameter
hole is included with the control kit. Tile up to the hole
in mounting plate as indicated in diagram 13 or 14.
2. TEMPERATURE SENSOR CABLE ROUGH-IN
(REQUIRED FOR K60 OR K30 ONLY)
It is recommended that the sensor be mounted in the
steam room 150 mm from the ceiling, but not directly
over the steam dispersion head or more than 2,1 M
above the floor. String the sensor cable from the
sensor location through 13 mm holes in the wall
studs or ceiling joists to the generator location. Leave
305 mm of slack at the sensor location. Note: Do not
staple through or damage cable. Use factory supplied
cables only.
3. ELECTRICAL ROUGH-IN
Size wire for the generator as indicated by the Elec-
trical Information Chart on page 8. Use correct size
and type to meet electrical codes. Leave 1,2 M of
slack wire at generator location for finish hookup.
Connect the generator to a dedicated circuit breaker.
A GFI device is not required by UL. One may be
installed if required by local codes or the owner. A GFI
device will tend to nuisance trip due to heater element
aging.
4. ELECTRICAL FINISH
Materials (locally available):
- 3/4" Strain relief for supply wire.
A. Route the copper supply wire with appropriate
strain relief through the hole marked POWER ENTRY.
B. Connect the supply wires to terminals marked
230V and N (230V ~ Models) or L1,L2, L3, and N
(400V ~ 3N Models)
C. Connect the ground to the earth ground lug ( ).
5. INSTALL GENERATOR CONTROL (K30,K60,KT60)
The low voltage controls can be mounted directly to
a finished wall either inside or outside the steam
room with the exception of the KT60 control which
must be mounted inside the steam room. Using a 50
mm hole saw, drill a hole in the finished wall where
the control is to be mounted (the control cable should
already be roughed-in to this location). With the
decorative cover removed from the control switch
assembly, insert the two control mounting screws
through the control housing (may need to punch
through skinned holes) and screw 0,6 mm into the
mounting bracket. Locate the control cable and plug
it into the back of the control housing. See diagram
8. Run a bead of 100% silicon caulk in-between the
2 ridges around the perimeter on the back of the
control housing. See diagram 9. Insert the mounting
bracket into the wall cavity by first pushing with the
control housing and then with a hard flat surface on
the control housing mounting screws which extend
out through the control face. Once the mounting
bracket has been inserted into the finished wall,
center the control and tighten the mounting screws
to draw the control housing securely against the
finished wall. Do not over tighten the mounting
screws. Install the decorative cover plate by sliding
the top of the cover plate over the tab on the top of the
control housing and pushing on the bottom of the
cover plate to complete the snap fit. See diagram 11.
Route the generator end of the control cable through
the generator hole marked CONTROL WIRING EN-
TRY using the strain relief provided. Plug the control
cable into the connector on the printed circuit board
assembly. Insert cable into connector S30 if a K30
control is used or connector S60A if a K60 or KT60
control is used. See diagram 10.
5A. INSTALL GENERATOR CONTROL (R30K)
The low voltage control can be mounted directly to a
finished wall either inside or outside the steam room.
Using a 45 mm hole saw, drill a hole in the finished
wall where the control is to be mounted (the control
cable should already be roughed-in to this location).
Locate the control cable, pull it out through the
45 mm hole and plug the connector on the back of the
control housing. Run a bead of 100% silicone caulk
around the perimeter on the back of the control
housing. See diagram 13. Insert the control into the
wall cavity.
WARNING
SECTION 6: WIRING INSTRUCTIONS
SEE ELEC. INFO. CHART AND WIRING DIAGRAM

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
ELECTRICAL INFORMATION CHART
DIAGRAM 11 DIAGRAM 12
(BUILT-IN SENSOR ON KT60
CONTROL ONLY)
USED WITH K60 OR K30 CONTROL ONLY
TILE UP TO 50 mm
DIAMETER HOLE
IN FINISHED WALL
WALL
DECORATIVE
CONTROL COVER
PLATE
CONTROL
HOUSING
DIAGRAM 13
APPLY SEALANT
(100% SILICONE CAULK)
TILE UP TO
45 mm DIAMETER
HOLE IN FINISHED
WALL
(OPTIONAL NUT IF BACK OF
WALL IS ACCESSABLE)
2 GANG ROUGH-IN BOX
DIAGRAM 14
R30K
ROUGH-IN K30, K60, KT60
ROUGH-IN
SILICONE
CAULK
TEMPERATURE
SENSOR
WALL
22 mm
HOLE
SENSOR
CABLE
PIGTAIL
PROBE MUST
BE POINTED
DOWN
STEAM
GENERATOR
MODEL kW
AC
VOLTAGE PHASE
NOMINAL
WATTS
NOMINAL
AMPS
RECOMMENDED
SAFETY DEVICE
4kW 230V~ N 1 4133 18,0 25
5kW 230V~ N 1 5051 22,0 30
6kW 230V~ N 1 5970 26,0 35
7kW 230V~ N 1 6888 29,9 40
8kW 230V~ N 1 7806 33,9 45
10kW 230V~ N 1 9184 39,9 50
12kW 230V~ N 1 11939 51,9 65
8kW 400V~ N
3 3 7806 11,3 15
10kW 400V~ N
3 3 10102 14,6 20
12kW 400V~ N
3 3 11939 17,2 25
14kW 400V~ N
3 3 13776 19,9 25
Notes: Use only copper wire rated 600V~ and 75°C or better
All models require Earth connection
All models require Mains plus Neutral connections
All Mains must supply minimum 195V ~ to N while steamer is heating
Steamer must be connected to a means of disconnecting all mains supply
connections after installation

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
SECTION 6: WIRING INSTRUCTIONS (continued)
SEE DIAGRAM
Electrical shock hazard - Disconnect
all electrical power before servicing
the generator. All wiring should be
installed by a licensed electrical
contractor in accordance with local
and national codes.
For continued safe operation use
factory authorized replacement
elements only.
6. OPTIONAL SECONDARY GENERATOR CONTROL
As an option, a second K60 control can be installed
with an AK generator to provide ON/OFF control both
inside and outside the steam room. The second
control should be installed as described in para-
graphs 1 & 5, with the second control cable plugged
into connector S60B for the K60 Control on the
printed circuit board assembly. See diagram 10.
7. INSTALL TEMPERATURE SENSOR
(REQUIRED FOR K60 OR K30 ONLY)
The temperature sensor should be mounted 150 mm
below the ceiling, inside the steam room, but not
directly over the steam dispersion head or more than
2,1 M above the floor. Using a 22 mm hole saw, drill
a hole in the finished wall where the sensor is to be
mounted (the sensor cable should already be roughed-
in to this location). Locate the sensor cable, pull it out
through the hole and plug it into the temperature
sensor. It is best to tape the sensor and cable connec-
tion together to avoid disconnection inside the wall.
Apply silicon caulk as shown in diagram 12 and insert
the sensor in the hole. Make sure that the sensor
probe is pointing down once installed. Tape the
sensor in place while the silicone hardens. Route the
generator end of the sensor cable through the gen-
erator hole marked CONTROL WIRING ENTRY using
the control cable strain relief. Plug the sensor cable
into the connector marked J4 on the printed circuit
board assembly. See diagram 10
SECTION 7: OPERATIONAL TEST
SECTION 8: SERVICE
6. Within one minute the unit should again pro-
duce steam. It should call for water once every two
minutes or more depending on its power rating.
It’s normal for the flow of steam out the steam
head to slow for up to 10 seconds each time the
unit calls for water.
7. The unit will shut down automatically in 30
minutes if the "R30K or K30" Control is used, or up
to 60 minutes if the K60 or KT60 Control is used.
When the time runs out the steam will stop and
there should not be any water flow. The control
should not be lit.
8. If the unit does not operate as described above,
refer to SECTION 9: TROUBLESHOOTING GUIDE.
THE UNIT IS NOW READY FOR OPERATION.
1. DESCRIPTION OF AMEREC AK SERIES
GENERATOR
The AK series is one of AMEREC’s high performance
line of steam generator products.
The Printed Circuit Assembly (the “PCA”) provides
the basic functions necessary to produce steam. The
PCA controls makeup water, provides a water level
permissive for powering the elements and provides
raw DC power for the system.
The PCA also provides regulated non-interruptible
5.0 VDC power for the generator control and tem-
perature sensor. It provides the interface circuitry
between the control and the PCA, provides the room
temperature control loop, power switching for "soft
steam" and a fixed 30 minute steam bath timer or
adjustable 60 minute timer.
2. MAINTENANCE OF AK SERIES STEAM
GENERATORS
- VISUAL INSPECTION - Whenever the generator is
opened, inspect for any evidence of water leaks.
Inspect the wiring for any evidence of overheating.
Check all electrical connections for tightness.
- FLUSH TANK - Flush monthly, or more often,
depending on local water conditions.
- FLUSHING PROCEDURE:
A. The generator should be cool.
B. Press the ON/OFF. The control should light.
C. Open the manual drain valve.
D. The unit will drain without heating the water.
E. Allow the water to run for a full 10 minutes, then
press the ON/OFF. The control light should turn off.
(continued page 12)
SEE DIAGRAMS
1. Assure power and water are on.
2. Press the ON/OFF. The control should light-up.
3. Allow 10 minutes for the steam to start.
4. Once the steam starts, press the ON/OFF. The
steam should stop; there shouldn't be any water
flow. The control should not be lit-up.
5. Press the ON/OFF. The control should light up.
WARNING

page 11
AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
3 to 9,5 mm
LEVEL PROBE
DIAGRAM 15 DIAGRAM 16 DIAGRAM 17
HEAT
ELEMENT
GASKET
ELEMENT END
ORIENTATION
VERTICAL ± 15°
REF
FAST-ON
LUG
NOTE TAB
OFFSET IN
OPENING
TM
DIAGRAM 18 DIAGRAM 19
DIAGRAM 20
This diagram intentionally left blank.
RUBBER
GASKET

page 12
AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
C. WATER SOLENOID REPLACEMENT:
Disconnect power from the unit. Turn the water
supply OFF. Disconnect the water supply from the
water solenoid valve. Remove the front cover. Re-
move the two blue wires from the water solenoid
valve. Rotate the self-tightening hose clamp so it can
be loosened with a pair of pliers. Squeeze the clamp
and move it down towards the shelf and off the valve
outlet tube. Remove the two 1/4" - 20 hex head bolts
and lock washers that attach the valve to the chassis.
Pull the valve off the rubber fill hose. To install the
valve, reverse these instructions. Test the unit per
SECTION 7: OPERATIONAL TEST.
D. LEVEL PROBE REPLACEMENT:
Disconnect power from the unit. Remove the front
cover. Note where the blue wire is connected to the
triple pronged water level probe. Disconnect all three
wires from the water level probe. Using a 32 mm box
wrench, remove the level probe. Install a new level
probe. Use Teflon Tape on threads of probe if re-
quired. Tighten until the bottom of the plastic nut is
3 to 9,5 mm above the top of the port. See diagram
17. Reattach the three wires. Test the unit per
SECTION 7: OPERATIONAL TEST.
IMPORTANT
The blue wire connected to “L” on the
PCA must be connected to the shortest of the
three level probes.
IMPORTANT
The level probe may be extremely tight. Damage
to the insulation or chassis may result unless the
tank is properly blocked or supported during
probe removal or installation. It may be neces-
sary to completely disconnect and disassemble
the generator.
SEE DIAGRAMS
SECTION 8: SERVICE (continued)
6. Allow the unit to drain completely. When the water
stops, close the manual drain valve.
3. REPAIR OF AK SERIES GENERATORS
A. ELEMENT REPLACEMENT:
Disconnect power from the unit. Drain the tank. Open
the front and HEATING ELEMENT ACCESS covers.
Note the wire connections. See diagram 15. Remove
the element wires. Using a 1-1/2" (38 mm) hot water
element socket, remove the element. To install a new
element, mount a new element gasket on the ele-
ment. Clean the element port and add a light coat of
Rectorseal No. 5 pipe thread compound to the threads.
Insert and hand tighten the element-gasket combina-
tion. Notice the element end orientation as shown in
diagram 16. Tighten the element until the orientation
is the same as diagram 16, ± 15°. The gasket should
be set and tight but not deformed to a rounded or
bulbous appearance. If the drain valve was removed
reinstall it. Reconnect the wiring. Test the unit per
SECTION 7: OPERATIONAL TEST. Check for leaks at
the element. Replace the front cover and the HEAT-
ING ELEMENT ACCESS cover.
B. PRINTED CIRCUIT REPLACEMENT:
Printed circuit assembly (PCA) removal and replace-
ment must be performed in the sequence described
below. Any other method can damage the PCA.
IMPORTANT
The PCA’s contain static sensitive devices.
Static electricity may damage PCA’s. Handle
accordingly.
Disconnect power from the unit. Note and tag the
positions of all wires that plug into the printed circuit
assembly mounted relays. Remove all the wires from
the relays and water valve. When removing these
wires, pull on the connector, not the wire. Remove
the drain valve wires, if installed, from terminal block
TB2. Press down the orange tabs with a small screw-
driver until the drain wires can be easily pulled out of
the terminal block.Note the blue wire connected to
the shortest of the triple pronged water level probe.
Disconnect all three wires from the water level
probe.Note and tag the positions of all control and
temperature sensor cables. Remove the wire nuts
from the temperature limit switch cable and separate
the wires. Remove PCA from all seven standoffs.
When it is completely disconnected, it may be lifted
out of the enclosure. See diagram 20. To install the
board, reverse this procedure. Test the unit per
SECTION 7: OPERATIONAL TEST.
IMPORTANT
The blue wire connected to “L” on the
PCA must be connected to the shortest of the
three level probes.
All electrical supplies should be
disconnected when servicing
generator.
Electrical Shock Hazard. PCA’s have
exposed 230V ~ on them. Disconnect
ALL~ power to the generator before
servicing.
The relays may be damaged if the
correct orientation of the connectors
is not observed. See diagram 19.
WARNING

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
The AK Generator design may incorporate several modification options. Options such as automatic tank draining and others are available. Please call the AMEREC
Service Department at 1-800-331-0349 for instructions and availability of these options.
There are no user serviceable parts in the Generator. All repair should be performed by a qualified service person. For additional assistance or the factory authorized
service person nearest you call the AMEREC Service Department at 1-800-331-0349. The Trouble Shooting Guide below is meant as a general aid only. Follow ACTION
TO BE TAKEN in order until the problem is resolved. Where replacements or repairs are indicated, see the appropriate paragraph of SECTION: 8 SERVICE. Before
starting, check for loose, damaged or burnt wires. Make sure all connections are correct and tight.
SECTION 9: OPTIONAL MODIFICATIONS
SECTION: 10 TROUBLE SHOOTING GUIDE
SYMPTOMS PROBABLE CAUSES ACTION TO BE TAKEN
Control won't turn "ON"
(Control light off).
Note: Control Cables must
be correctly plugged in
before power is turned on.
Improper power supplied (no power).
or
Control improperly connected.
or
Steam tank temperature limit switch is open
or
"PCA" printed circuit assembly is faulty.
or
Control cable is faulty.
or
Control is faulty.
1. a. Make sure circuit breaker is "ON", 230V supplied.
b. Using a voltmeter, check the voltage across the two fuses on the "PCA"
printed circuit assembly. Voltage should be 230V.
c. Check fuses on the PCA. If fuse(s) are blown, replace with 100 mA Time
Delay (F1) or 1A Non-Time Delay (F2)
fuse. If the fuse blows again - call AMEREC'S Service Department.
d. Use a small screwdriver or similar tool to reach through the hole in the
PCA near T1 and press the button on the limit switch to reset.
2. Turn off power to the generator.
3. Check control(s) installed per instructions. Re-apply power and test operation.
4. Replace PCA printed circuit assembly - call AMEREC'S Service Department.
5. Replace control cable - call AMEREC'S Service Department.
6. Replace the control - call AMEREC'S Service Department.
Control "OFF". (Control light
off)
Water won't shut off and runs
out of the steam head.
Water solenoid valve is stuck open.
or
"PCA" printed circuit assembly is faulty.
1. Turn off power to the generator. If the water stops, go to step 3.
2. a. Remove the water solenoid valve, dissassemble, clean,
re-assemble, and check for proper operation.
b. Replace valve - call AMEREC'S Service Department.
3. Replace the "PCA" printed circuit assembly - call AMEREC'S Service
Department.
Control "ON". (Control light
on)
Water won't shut off and runs
out of the steam head.
"PCA" printed circuit assembly is faulty.
or
Connection between the PCA and the water
level probe is faulty.
1. Check that the blue & white wires are properly attached to the water level probe.
Blue wire to the shortest level probe,white to the highest probes.
2. Remove and clean the level probe.
3. Replace the "PCA" printed circuit assembly - call AMEREC'S Service
Department.
Control "ON" (Control light
on), Tank drained.
Unit won't fill.
No water supplied (turned off?)
or
Plugged water solenoid valve.
or
Water solenoid valve is faulty.
or
"PCA" printed circuit assembly is faulty.
or
Level probe is faulty.
1. Check for proper water supply (Supply valve "on"). Check for closed drain valve.
2. Remove the blue wire from the level probe. If the unit fills, clean or replace the
level probe.
3. Reconnect the blue wire to the shortest level probe. At the water valve solenoid,
slide back the blue connector enough to get the voltmeter probes on the
solenoid terminals. Measure the voltage across the solenoid terminals. If it is
not 230V, replace the printed circuit assembly. If 230V is found
proceed with steps 4 & 5.
4. Remove water solenoid valve; disassemble, clean, reassemble, and check for
proper operation.
5. Replace the water solenoid valve - call AMEREC'S Service Department.

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
SECTION 10: TROUBLE SHOOTING GUIDE cont.
SYMPTOMS PROBABLE CAUSES ACTION TO BE TAKEN
Control "ON". (Control light
on)
Unit won't steam.
Note:
Steam lit steadily on K30
or
Time/Temp properly
displayed on K60/KT60
Unit has not filled completely.
or
Heating elements burnt out.
or
Level probe faulty.
or
"PCA" printed circuit assembly is faulty.
1. a. Push the control "OFF".
b. Open the drain valve allowing tank to drain completely.
c. Close the drain valve.
d. Push the control "ON".
e. Unit will begin filling, listen for a click noise. Within 20 seconds after
click noise is heard, the water fill will shut off. This will indicate the
tank is full. Go to step 4, if the tank does not fill - See SYMPTOMS:
"Unit won't fill up".
2. If the tank filled but the relay click was not heard, temporarily ground the
two long probes. If the click is heard as each probe is grounded, replace the
level probe. If the click is not heard replace the "PCA" printed circuit assembly.
3. After it has been determined that the tank has filled and the click noise was
heard, remove the heating element access panel. Using a voltmeter, check the
voltage between the two wires on each heating element - the voltage should be
230V. If proper voltage is found call the factory for replacement heating
elements. If no voltage is found - check wiring diagram - call AMEREC's
Service Deparment.
Control "ON".
K60/KT60 Control displays
"E001"
Temperature sensor not connected.
or
Cable is open
or
Faulty sensor
1. Check that the sensor cable is connected to J4 on the "PCA" printed circuit
assembly.
2. Check the cable connection to the temperature sensor.
3. Replace sensor and/or cable - call AMEREC's Service Department.
Control "ON".
K60/KT60 Control displays
"E002"
Temperature sensor
or
cable shorted.
1. Check sensor cable for damage from nail/staple puncture.
2. Check sensor cable ends for frayed/exposed wire strands.
3. Replace sensor and/or cable - call AMEREC's Service Department.
Control "ON".
K60/KT60 Control displays
">>>º"
Steambath temperature over 55° C
or
Sensor/cable faulty.
1. If bath is too hot, shut off circuit breaker and call AMEREC's Service
Department.
2. Treat as "E002" fault above.
Control "ON"
K30 light blinking
Control improperly connected.
or
Sensor/cable faulty.
or
Control faulty.
1. Check that the control cable is properly plugged in at the control and at the
generator. K30 to primary S30 connector on the PCA. Turn off power supply,
wait one (1) minute then turn back on. Check for proper operation. If K30 is
still "blinking", turn off power supply and call AMEREC's Service Department.
2. Check sensor/cable as with K60 "E001" and "E002"
3. Replace K30 Control - call AMEREC's Service Department.
Control won't turn "OFF"
(Control light on).
Control is faulty. 1. Replace the control - call AMEREC's Service Department.
Control "OFF"
Unit won't shut off.
"PCA" printed circuit assembly is faulty. 1. Turn off the power to the generator, replace printed circuit assembly - call
AMEREC's Service Department.
Water continually sputters
out of steam head.
Foaming contaminants in the water. 1. Flush tank 3 times. See section 8, flushing procedure.
2. Call AMEREC's Service Department.
Unable to adjust Time or
Temp setting with
K60/KT60
Control faulty
or
"PCA" printed circuit assembly is faulty.
1. Replace control - call AMEREC's Service Department.
2. Replace PCA - call AMEREC's Service Department.

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
1
28
12
4
29
15 23
7
8
22
19
5
18
20
14
6
13
3
39
33
44
21
34
35
36
43
24
2
16
17
9
11

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
• For assistance or parts ordering,
please contact your local AMEREC
Dealer or AMEREC at 1-800-331-0349.
Please help us to serve you better by:
1. Identifying the problem by using the
troubleshooting guide in this manual.
2. Read Number 12, the ID/Ratings
Label, to obtain your unit's model and
code number.
• When ordering parts, please provide
the number, description and quantity
needed. When ordering wires or wire
assemblies, please describe the wires
by color, location and / or their
connection points.
• Do not return any material to
AMEREC without first contacting
AMEREC for a Return Authorization
Number. Freight must be prepaid to
AMEREC.
PARTS AND / OR RETURNS:
NUMBER PART NAME DESCRIPTION
1FRAME CHASSIS
2TERMINAL POWER INPUT TERMINAL BLOCK
3COVER FRONT WITH WD LABEL
4COVER ELEMENT ACCESS
5TANK ELEMENTS
6INSULATION BLANKET
7BRACKET L BRACKET
8NIPPLE DRAIN NIPPLE
9TERMINAL OPTIONAL AUTO FLUSH TERMINAL BLOCK
11 CAP CAP, THREAD PROTECTOR
12 LABEL ID/RATING LABEL
13 PROBE TRIPLE LEVEL
14 ELEMENT REPLACEABLE ELEMENT
15 VALVE WATER INLET
16 CLAMP SELF-TIGHTENING
17 HOSE WATER
18 CLAMP AUGER
19 VALVE MANUAL DRAIN
20 GASKET ELEMENT
21 BRACKET MOUNTING BRACKET
22 VALVE PRESSURE RELIEF
23 PCA PRINTED CIRCUIT ASSEMBLY, AK/3K
24 LUG GROUND
28 BOLT 1/4-20 x 1/2"
29 WASHER 1/4" LOCK
33 CONTROL HOUSING CONTROL HOUSING
34 CABLE CONTROL CABLE
35 SENSOR TEMPERATURE SENSOR (K30 or K60 ONLY)
36 CABLE TEMPERATURE SENSOR CABLE (K30 or K60 ONLY)
37 STEAM HEAD DISPERSION HEAD (NOT SHOWN)
38 PLACARD SAFETY (NOT SHOWN)
39 LABEL WIRE DIAGRAM
40 FUSES 100 MA TIME DELAY (NOT SHOWN)
41 FUSES 1A NON-TIME DELAY (NOT SHOWN)
43 STANDOFF STAND OFF
44 COVERPLATE DECORATIVE CONTROL COVER PLATE

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AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009

page 18
AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009

page 19
AK and 3K Series Installation and Service Instructions
4211-139-A 08-14-2009
P.O. Box 2258, Woodinville WA 98072
425-951-1120 Fax: [phone]
email address: amerec @ amerec .com