Steamist SM-12 User manual

07/07 Pub. No. 323-H
3. Steam Generator Electrical Installation
4. Optional Auto Drain Valve Connection
a)
b)
c)
d)
e)
Remove the six screws holding the electrical access
cover and remove cover.
Locate the supply line knockout. Mount proper
strain relief into knockout hole.
Strip back power cable’s outer insulation jacket
eight inches and insert into steam generator. Strip
back insulation ½” from the three (3) incoming
wires (two power and one ground).
Insert ground wire into grounding lug located on the
right side of the electrical compartment and secure.
CAUTION: Be sure the ground wire does not come
in contact with a live electrical part.
Locate the terminal block in the upper portion of the
electrical box. Insert power wires into the power
lugs on the right of the terminal block and secure.
Open knockout for Auto Drain Valve conduit
connection.
Route flexible conduit from valve to knockout and
secure.
Connect two wires from valve to the two place
terminal strip provided (See figure 2).
a)
b)
c)
WARNING: All power to the steam generator must
be turned off.
NOTE: The plug and receptacle require a rating of
no less than 250V and proper amperage. Refer to
chart on page 4 for amperage rating.
After the walls are complete, the Steam Generator
and Control can be wired.
2. Electrical Rough-In
Route appropriate power cable to the location the
Steam Generator will be installed. If receptacle is
desired, mount the box for the receptacle near the
location of the Steam Generator (See Figure 3:
Typical Installation).
a)
Electrical Installation Instructions
Models: SM-12 and SM-15
IMPORTANT: the warranty of this product is voided if it is used in a commercial application or for anything other than a
residential steambath installation. All electrical connections must be performed by a licensed electrician in accordance
with Local and National Electric Codes.
Steambath Generators
CUS
®
LISTED 995C
The Steamist “SM” generator operates with one or two
controls appropriately located inside and/or outside the
steamroom. It’s small enough in size to be tucked away
using very little space in a vanity, closet, basement, or an
insulated attic, but large enough to provide steam for most
residential baths.
The Steamist “SM” Steambath Generator comes
factory-assembled carefully wired and tested.
Proper electrical supply (208 or 240 Volt): See rating
label on Steam Generator and Chart on back page.
Determine proper size of wire, voltage, amperage,
and phase for the Steam Generator. Only UL rated
90°C wire can be used.
In-line fuse/circuit breaker required: Fuse/circuit
breaker to be installed must be sized in accordance
with chart on back page. Do NOT install a GFI
(Ground Fault Interrupter) to this equipment (per
article 210-8 in the National Electric Code).
Route power supply cable to the location where the
Steam Generator will be installed (before walls are
closed).
1. Pre-Installation
a)
b)
c)
NOTE: The TC-110, TC-135, DSC-425, and DSP
Controls are designed to work with all Steamist “SM”
Generators.
Optional Auto
Drain Installed
Water Inlet
⅜“ Compression
Fitting
¾“Safety
Relief Valve
¾“ Steam
Outlet
Electrical
Panel Cover
Knock-outs for
Electrical Supply Line
Knock-out for
Control Cable
- 1 -
WARNING: Elderly persons, pregnant women, or those suffering from heart disease, high blood
pressure, diabetes, or who are otherwise not in good health, do not use this device unless
directed to do so by a physician. Also, do not use steambath while under the influence of alcohol.
!
Figure 1
Steam Generator
Install Upright and Level

Single Phase
Connections Shown
Power Supply
L1 and L2
Ground
Optional Steamist Splitter
for two Controls
Modular Jack
Protective Covering
“Remove Before
Installation”
Plug
Optional Auto
Drain Connection
Before starting, insure that the conditions of the following checklist have been met:
The proper size Steam Generator has been selected by
using the sizing page in the “Full Line Brochure,” “Pricing
Guide,” or “The Generator Sizing Guide” in the
Residential Systems/Steambath Product Information
section of the Steamist web site - www.steamist.com.
CAUTION: An improperly sized Steam Generator will
NOT produce the amount of steam necessary to reach
selected temperature.
The proper voltage Steam Generator has been selected
(i.e., 208V or 240V). A 208V generator operating on
240V will damage the heating element and a 240V
Generator operating on 208V will result in a 25% loss of
power.
The Steam Generator is installed in an upright position.
The proper sized 90°C wire and circuit breaker have
been used.
The circuit breaker is NOT aGFI (Ground Fault
Interrupter) type.
The Steam Generator is properly grounded.
The circuit breaker or disconnect switch is on.
Water Supply is open to the Steam Generator.
Checklist
Knock-Out
for Auto Drain
¾“ Steam
Outlet
Safety
Relief
Valve
Water Inlet
⅜“ Compression
Fitting
½“ Out
When not equipped
with Auto Drain leave
drain line capped
and closed
Printed
Circuit
Board
Water
Level
Probe
Contactor / Relay
07/07 Pub. No. 323-H
- 2 -
Terminal Strip
for Auto Drain
Connection

IMPORTANT: Run the Control Cable through a ¾”
conduit. Remove protective cap when making the final
connection to Control.
The Electrical Instructions must be
given to the homeowner for future use.
NOTE: Unit must be wired with
90°C wire in a suitable raceway,
or, if local codes allow, provide
twist lock plug on a 90°C wire cord
from generator to a 250V 2 pole,
3-wire grounding receptacle
(amperage rating as required).
Outside Installation
TC-110 or
DSP Timer Only
Control Cable
Route from
Control to Steam
Generator in a
¾” conduit.
Figure 3: Typical installation
Appropriately
fuse protected
208/240V field
wiring to Steam
generator.
TC-135, DSC-425, and
DSP Temperature Control
MUST be installed inside
the shower.
Inside Installation
Control should be mounted four
feet from the floor. Select a
location convenient to the
bather but not in a direct line of
Shower or Body Sprays and not
directly above the steamhead.
115
START
STOP
TEMP
TEMP
30
START
STOP
TIMER
TIMER
07/07 Pub. No. 323-H
- 3 -

LLC-1300-3 Circuit Board
(Low Voltage)
Multi-Conductor
P14
P12
P11
P16
P15 P10
P1
P2
P6 P8 P7
P9
P4
P3
P5
L
H
XL
P18 P17
DS1
DS2
DS3
DS4
See
Chart
Test
Switch
Fuse 0.15 AMP
P13
GND
COIL
Heating
Elements
TANK
WHT
GREY
BRN
RED
BLU
BLU
GRN
Water
Solenoid
Valve
Optional
Auto-Drain
Valve
Auto-Drain
Thermostat
Terminal
Block
Contactor / Relay
Fuse Block
Typical Steamist
Control
Cable*
YEL YEL
RED
RED
ORG
BLK BLK
Water
Level
Probe
GND
SM-12/15 SINGLE PHASE SCHEMATIC
RED
Field
Connections
**
DS1
DS2
DS3
DS4
GRN
YEL
AMB
RED
TIMER ON
HEAT ON
WATER FILL ON
POWER ON
LED COLOR CHART
SPECIFICATION CHART
240
208
1
1
6
4
4
4
240
208
240
208
240
208
3
3
1
1
3
3
50
58
29
33
63
72
36
42
8
8
8
6
70
80
40
45
80
90
45
60
Model
No.
Max. Cu. Ft.
For Area Up To KW Volt Phase Amps
Wire Size 90ºC
Copper AWG
Line
Fuse
SM-12 450 12
15550SM-15
LLC-1300-3 Circuit Board
(Low Voltage)
Multi-Conductor
Cable*
Typical Steamist
Control
P14
P12
P11
P16
P15 P10
P1
P2
P6 P8 P7
P9
P4
P3
P5
L
H
XL
P18 P17
DS1
DS2
DS3
DS4
See
Chart
Test
Switch
BLU
WHT
GREY
Water
Solenoid
Valve
Terminal
Block
Optional
Auto-Drain
Valve
GRN
Heating
Elements
Water
Level
Probe
Fuse 0.15 AMP
SM-12/15 THREE PHASE SCHEMATIC
P13
GND
Auto-Drain
Sensor
BLU
COIL
GND
BLK
BLK
BLK
YEL
BRN
ORG
ORG
BLK BLK
RED
BLK
BLK
BLK
L1
L3
L2
T1
T3
T2
Noise
Filter
RED
RED
RED
Field
Connections **
YEL
TANK
ORG
L1
L2
L3
L4
T1
T2
T3
T4
119
START
STOP
TIME
TEMP
SENSOR HEAT
119
START
STOP
TIME
TEMP
SENSOR HEAT
GND
GND
Contactor / Relay
L1
L3
L2
L3
L1
L2
Noise
Filter
L1
L2
Terminal Block
GRN
GRN
NOTES: * Supplied with Controller.
** Field Connections, use 90ºC wire, gauge No. See Chart Copper.
NOTES: * Supplied with Controller.
** Field Connections, use 90ºC wire, gauge No. See Chart Copper.
- 4 -
07/07 Pub. No. 323-H
East Coast Office: 275 Veterans Blvd., Rutherford, NJ 07070 ●Tel: [phone] ●Fax: [phone]
West Coast Office: 315 W. Pondera St., Suite F, Lancaster, CA 93534 ●Tel: [phone] ●Fax: [phone]

Models: SM-12 and SM-15
IMPORTANT: the warranty of this product is voided if it is used in a commercial application or for anything other than a
residential steambath installation.
Steambath Generators
WARNING: Elderly persons, pregnant women, or those suffering from heart disease, high blood
pressure, diabetes, or who are otherwise not in good health, do not use this device unless
directed to do so by a physician. Also, do not use steambath while under the influence of alcohol.
!
07/07 Pub. No. 324-G
CUS
®
LISTED 995C
Plumbing Installation Instructions
The Steamist “SM” Generator comes factory assembled,
carefully wired and tested.
The Plumbing Installation must conform to local and
national codes. All electrical power should be turned OFF
when working with Steam Generator.
Be sure that the proper size Steam Generator has
been selected by using the sizing page in the “Full
Line Brochure,” “Pricing Guide,” “The Generator
Sizing Guide,” Architectural Guidelines,” or in the
Residential Systems/Steambath Product
Information section of the Steamist web site -
www.steamist.com.
CAUTION: An improperly sized Steam Generator
may NOT produce the amount of steam necessary
to reach selected temperature.
IMPORTANT: Refer to page 4 for model required for
cubic foot rating.
The Steam Generator should be located as close as
possible to the Steam Room/Shower or tub
enclosure. Steam pipe should NOT exceed
twenty-five feet in length. If the steam pipe exceeds
ten feet, use an appropriate pipe insulation rated for
a minimum of 212°F. Possible locations include
Vanity, Closets, Attic (insulated), or Basement near
bath area. The serial number plate should be visible
and the Steam Generator should be accessible for
service. Refer to Installation Suggestion on the page
4. Do NOT install Generator outdoors, in a moist
humid area, or in an area where parts may freeze or
corrode. Also, do NOT install near flammable
materials such as paints, thinners, gasoline, etc.
The steam line and safety valve reach a
temperature of 212°F during operation and should
be appropriately protected to prevent personal injury
by accidental contact.
1. Pre-Installation
a)
b)
c)
NOTE: Safety Valve should be connected to a
minimum ¾” indirect waste or as required by local
plumbing codes. In the unlikely event this valve should
open, the discharge must be directed to prevent
damage to the home.
Water Inlet - A water line should be roughed-in from
existing ½” hot or cold water pipe. Using a ½” x ⅜”
tee, cut and solder tee into the existing water line.
(See Figure 3 on page 3). Solder a piece of ⅜”
copper tubing into tee. Rough-in for water supply is
now complete.
Steam Outlet - Rough-in the steam line using a
minimum of a ¾” copper or brass pipe, do NOT use
black iron or galvanized pipe, it will rust and discolor
the wall of the steam bath. The steamhead location
should be 18” above the shower floor or 6” above
the rim of the bathtub, as far from the seating area
as possible.
CAUTION: No shut-off valve can be installed in the
steam line. Do NOT create traps or valleys in this line
which would trap condensation and block the flow of
steam. The steam pipe should be pitched toward the
Steam Generator allowing condensation to run back
toward the Steam Generator (preferred), or toward the
steamhead.
2. Plumbing Rough-In
Plumbing rough-in is required for the water supply and
steam line, this should be completed before the walls
are closed. For operation, the “SM” Steam Generator
requires a ⅜” O.D. copper tubing to the fitting on the
generator for water inlet and ¾” copper or brass pipe for
steam outlet.
a)
b)
- 1 -
Optional Auto
Drain Installed
Water Inlet
⅜“ Compression
Fitting
¾“Safety
Relief Valve
¾“ Steam
Outlet
Electrical
Panel Cover
Knock-outs for
Electrical Supply Line
Knock-out for
Control Cable
Figure 1
Steam Generator
Install Upright and Level

3. Steam Generator Installation
The Steam Generator should be mounted in a location
convenient for hook-up and service by the Plumber and
Electrician.
CAUTION: The steam generator is designed to be used
ONLY in an upright and level position, to do otherwise
would damage the unit and void the warranty.
a)
b)
c)
d)
The steam generator can be mounted to a wall or set
on the floor. However, the unit must be secured. To
secure the unit to a vertical wall, loosen the two
screws holding the electrical access cover, remove
cover (see Figure 1). Located inside the cabinet
near the top left and right corners are mounting
holes. Place top cover back and secure.
Connect the 3/8” water supply, described in Section
2 to the Steam Generator by first soldering a 3/8”
valve into the previously installed water line. The
valve must be kept in an open position during normal
operation. In areas where high water pressure may
be a problem a water hammer arrestor or a pressure
regulator should be installed. Complete water
supply by connecting 3/8” copper tubing from the
valve to the water inlet compression fitting. Refer to
Plumbing Diagram below.
IMPORTANT: Do NOT use a “saddle valve” or
piercing type valve for water connection.
Connect the steam line from rough-in location
described in Section 2 to the ¾” nipple on the steam
generator using a union.
In the shower, place the center of the escutcheon
onto the steam pipe and screw the steamhead into
place. Care must be taken not to scratch the
steamhead or escutcheon with wrench. Be sure the
steam slot in the steamhead is facing down. After
the plumbing connections are complete the
electrician may finish wiring the unit.
- 2 -
07/07 Pub. No. 324-G
Steam Pipe
Apply silicone around
the steam pipe to form
a water tight seal
Escutcheon
Steamhead
Tighten the screw to the
steamhead with the screw
to face down
Installation Instruction for Steamhead & Escutcheon
1.
2.
3.
4.
5.
Be sure the steam pipe is installed with the proper
length pipe protruding through the wall.
Apply silicone sealant around the pipe to seal the
pipe to the wall.
Slip the Escutcheon over the steamhead loosely.
Screw on the steamhead making sure the steam
opening is facing down.
Hold the Escutcheon against the wall and tighten the
retaining screw facing down.
IMPORTANT: An optional steam diffuser
(Not Included) is strongly recommended for
small steam rooms. This option helps to
better diffuse the steam and makes the
steambath more comfortable. This option
may not be necessary in larger steam rooms
where the bather is sitting a few feet away
from the steamhead.
WARNING: When installing a steam pipe into a steam
room made out of Acrylic, Cultured Marble, Corian,
Swanstone, Resin, Plastic or an equivalent type of
material, consult the manufacturer of the material for their
recommendation on location of the steam pipe. Verify that
the type of material used for the construction of the steam
room is rated for a steam room environment. When
installing a steam pipe, in the mentioned material type
rooms, it is very critical in making sure that when the
steam pipe protrudes into the steam room that it is
centered in its 1¼” hole and does not touch the edge of
the wall material around the steam pipe.
Figure 2: Plumbing Diagram
(Supplied with control package)
Steam Generator
Water Level Probe
Electric Water
Solenoid Valve
Hot or Cold
Incoming Water
Supply
Shut-off
Valve
Union
(Required)
Free Flowing
Steam Line
Pressure Safety Valve
Connect to Indirect Waste
or as Required by Local Codes.
IMPORTANT: Install
steam head 18” above
the shower floor or 6”
above the rim of the
Bathtub.
Optional Auto Drain Valve
Connect to Indirect Waste
or as Required by Local Codes.

The Plumbing Instructions must be
given to the homeowner for future use.
Figure 3: Typical installation
Slope ceiling 2” per foot
A ⅜” air gap is recommended below the
door and the door should incorporate a
splashguard. The top and sides of the
shower opening must be sealed.
115
START
STOP
TEMP
TEMP
30
START
STOP
TIMER
TIMER
⅜” Shut-off Valve
Keep in open
position during
normal operation.
Steamhead Installation
Steamhead should be mounted
18” above the finished floor or
6” above the rim of the tub as
far from the bather as possible.
½“ x ½” x ⅜” Tee.
Using existing Hot or
Cold water supply.
Union
Required
Safety Valve
Connect ¾” pipe to an
indirect waste or as
required by Local Codes.
Outside Installation
TC-110 or
DSP Timer Only
TC-135, DSC-425, and
DSP Temperature Control
MUST be installed inside
the Steam Room.
WARNING: When installing the
Steamist Unit in conjunction with
an acrylic modular tub/shower unit,
please consult the “manufacturer
of the module” for location of the
steamhead.
Steam Outlet Pipe - Use a minimum of a ¾” Copper or Brass pipe.
CAUTION: Do NOT install a Shut-off valve on the Steam outlet pipe. Do NOT
create traps or valleys in this line which would prevent the flow of steam. The
steam outlet pipe should be pitched toward the Steam Generator (preferred),
allowing condensation to run back into the Steam Generator or toward the steam
head. If the steam pipe exceeds ten feet, use an appropriate pipe insulation rated
for a minimum of 212°F.
- 3 -
07/07 Pub. No. 324-G

Access Requirements
30
START
STOP
TIMER
TIMER
Alternate Attic Location
(Insulate to Prevent Freezing)
Alternate Basement Location
(Insulated and Dry)
122
STOP
TEMP
TEMP
START
Installation Suggestions
*Refer to the Steamist Sizing Guide for actual Cu. Ft. capacity.
- 4 -
07/07 Pub. No. 324-G
Select a location for mounting the Steam Generator that is
accessible for installation and service. The access requirement
indicates the minimum space for convenient access to Steam
Generator.
CAUTION: All models must be installed INDOORS, in a DRY,
NON-FREEZING location away from flammable materials such
as: Gasoline, Paints, Thinners, Etc...
IMPORTANT: Steam Generator must be installed upright and
level.
SPECIFICATION CHART
6
4
12
240
208
8
8
70
80
40
45
Model
No.
* Max. Cu. Ft.
For Area Up To KW Volt Phase Amps
Wire Size 90ºC
Copper AWG
Line
Fuse
SM-12 450 240
208
1
1
3
3
50
58
29
33
SM-15 550 15
240
208
240
208
1
1
3
3
63
72
36
42
4
4
8
6
80
90
45
60
Use 35”with
Optional Auto Drain
35”
28”
20”
18”
Alternate
Closet
Location
Steam
Generator
in Vanity
East Coast Office: 275 Veterans Blvd., Rutherford, NJ 07070 ●Tel: [phone] ●Fax: [phone]
West Coast Office: 315 W. Pondera St., Suite F, Lancaster, CA 93534 ●Tel: [phone] ●Fax: [phone]

System-30
Steambath Generators
Master/Slave Installation Instructions
Introduction:
The System-30 consists of one SM-15 Master and one
SM-15 Slave. The Master/Slave generators are 15
kilowatts each. This instruction sheet is to be used in
conjunction with the standard SM-15 Electrical and
Plumbing instructions (Pub. No. 323 and 324). All
connections both plumbing and electrical must be kept
completely separate.
Danger: To reduce the risk of explosion. DO NOT
interconnect the steam outlets.
Operation: The Master/Slave generators operate as two
completely separate generators. The steam bath controls
are connected to the Master Generator. When the Master
Generator is started up from the controller, it then turns on
the Slave Generator and both units produce steam at the
same time.
NOTE: The following specifications apply to each of the
two Generators, wired and plumbed separately.
Electrical
Note: See separate electrical instruction. Pub. No. 323.
Main Power Connection: Each Steam Generator
requires a separate incoming power service.
Important: The System-30 consists of two 15 kilowatt
Steam Generators, therefore reference Specification
Chart below.
Master/Slave Interconnection: The only common
connection between the Master/Slave generators is as
follows: Connect the cable (supplied with Slave Unit) from
Telco receptacle at Slave Unit to same at the Master Unit
(See diagram on back).
Control Connection: The controls are to be connected to
the Master Generator as described in the control
installation instructions.
Plumbing
Note: See separate electrical instruction. Pub. No. 324.
Water Connection: The two Generators may be
connected to a single water line with a tee connection to
the water inlet of each Generator.
Steam Connection: Each Generator must be connected
to a separate Steamhead using ¾” brass or copper pipe.
Drain Connection: When the optional drain connection
is made, it must be completely separate from the each
Generator.
Safety Valve Connection: The Safety Valve must be
connected per the local plumbing code. Then its
connection must be completely separate from each
Generator.
SPECIFICATION CHART
240
208
1
1
2 @ 4
2 @ 4
240
208
3
3
2 @ 63
2 @ 72
2 @ 36
2 @ 42
2 @ 8
2 @ 6
2 @ 80
2 @ 90
2 @ 45
2 @ 60
Max. Cu. Ft.
For Area Up To KW Volt Phase Amps
Wire Size 90ºC
Copper AWG
Line
Fuse
1100 2 @ 15
CUS
®
LISTED 995C
07/07 Pub. No. 563-C
- 1 -
Slave
Master

Slave
Master
Splitter supplied
with Slave Unit
To Control
To Slave
Unit
Diagram 1
When using
one Control
Diagram 2
When using
two Controls
Splitter
supplied
with Slave
Generator
Splitter
supplied
with control
To Controls
To Slave Unit
Modular Jack
Slave Interface
Board
From
Master
Unit
Plug
IMPORTANT: System-30
will NOT work with a
TC-110 by itself
(a Thermostatic Control is
needed for this application)
Each generator requires it’s own
steamhead. When a system is purchased
you receive (2) steamheads. (1) with the
control and (1) with the slave generator.
You must not install these steamheads any
closer than 6”. Steamheads must be 18”
from the finished floor or 6” above the rim of
the tub.
- 2 -
07/07 Pub. No. 563-C
East Coast Office: 275 Veterans Blvd., Rutherford, NJ 07070 ●Tel: [phone] ●Fax: [phone]
West Coast Office: 315 W. Pondera St., Suite F, Lancaster, CA 93534 ●Tel: [phone] ●Fax: [phone]
Modular Jack
Optional Auto Drain
for installation instructions
(see Pub. No. 577)

Live Power
Connecon
Thermostat
Hi-Limit
Switch
125 Wa
Heater
Warning: Do not turn on the power to the steam generator until the installation is
complete and the unit is ready to test/use. If the steam generator will not be in use for
long periods of time (over 6 months) the power to the steam generator should be
turned off.
Important: In order for the InstaMist feature to function, water must always be in the
tank. For this reason the Optional Auto-Drain can NOT be used with any InstaMist
generators.
The Steamist InstaMist Feature (-IM) is only available as a factory installed option on
the following Models: SM-5, SM-7, SM-8, SM-11, SM-12, SM-15, System-18,
System-24, and System-30.
The Steamist InstaMist generators feature
pre-heat function, which provides a generous
volume of steam in under a minute. This new
feature maintains an average water
temperature of 180°F in the stainless steel
reservior. When the steam generator is
activated, the pre-heated water inside the
steam generator quickly reaches the boiling
point, allowing steam to flow out in under a
minute.
All Steamist steam generators with or without
InstaMist are factory assembled and tested.
There are no additional Plumbing or Electrical
requirements needed in the field for
generators with the InstaMist feature. The
installation instructions for the plumber and
the electrician are provided with the steam
generator and need to be followed.
Pub. No. 124-A
07/07
InstaMist
Info