mr. steam MS-90E Instruction manual

mr.steam®steamtherapy®
Residential Steambath Generator Systems
Installation, Operation & Maintenance Manual
Models 90E-400E
Models Super 1E-6E

READ ME FIRST!
IMPORTANT NOTE: As you follow these
instructions, you will notice warning and
caution symbols. This blocked information is
important for the safe and efficient installa-
tion and operation of this generator. These
are types of potential hazards that may occur
during this installation and operation:
states a hazard may cause serious injury or
death if precautions are not followed.
signals a situation where minor injury or
product damage may occur if you do not
follow instructions.
IMPORTANT NOTE: This highlights
information that is especially relevant to a
problem-free installation.
All information in these instructions is based on
the latest product information available at the
time of publication. Sussman-Automatic Corporation
reserves the ri ht to make chan es at any time
without notice.
!CAUTION
!WARNING
mr.steam®
Sussman-Automatic
Corporation®
[email protected]
www.mrsteam.com
Residential Steambath Generator Systems MO EL _______________________
Installation, Operation & Maintenance Manual
SERIAL NO._____________________
MO ELS: MS-90E, MS-150E, MS-225E, MS-400E
MS-SUPER 1E, MS-SUPER 2E, MS-SUPER 3E, MS-SUPER 4E, MS-SUPER 5E, MS-SUPER 6E
43-20 34th Street
Long Island City, NY 11101
TEL: 1 800 76 STEAM
FAX: [phone]
9410 S. La Cienega Blvd.
Inglewood CA 90301
TEL: 1 800 72 STEAM
FAX: [phone] M A E I N U S A
PUR 101289 Rev 3/10
When installing and using this electrical equipment, basic safety precautions
should always be followed, including the following:
IMPORTANT SAFETY INSTRUCTIONS
1.READ AND FOLLOW ALL INSTRUCTIONS
2. o not permit children
under the age of 16 to use this steambath.
3.
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. o 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.
!W A R N I N G
!WARNING
A peel-off warning label has been
provided in the Information enve-
lope. This label is to be applied to
the wall of the installed shower or
steam enclosure.
D. Excessive temperatures have a high
potential for causing fetal damage
during the early months of pregnan-
cy. Pregnancy or possibly pregnant
women should consult a physician
regarding correct exposure.
E. Obese persons and persons with a his-
tory 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 con-
sult a physician before using a steam-
bath since some medication may
induce drowsiness while other med-
ications may affect heart rate, blood
pressure and circulation.
SAVE THESE INSTRUCTIONS
REDUCE THE RISK OF OVERHEATING AND SCALDING
1. EXIT IMMEDIATELY IF UNCOMFORTABLE, DIZZY OR SLEEPY.
STAYING TOO LONG IN A HEATED AREA IS CAPABLE OF CAUSING OVERHEATING.
2. CHILDREN UNDER THE AGE OF 16 SHOULD NOT USE THE STEAM BATH.
3. CHEC 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.
5. DO NOT CONTACT STEAM HEAD OR STEAM AT THE STEAM HEAD.
REDUCE THE RISK OF SLIPPING AND FALL INJURY
1. USE CARE WHEN ENTERING OR EXITING THE STEAM ROOM. FLOOR MAY BE SLIPPERY.
NOTE: FOR ADDITIONAL SAFETY CONSIDERATIONS SEE OWNER’S MANUAL
mr.steam®43-20 34th Street , Long Island City NY 11101 1 800 76 STEAM www.mrsteam.com PUR100378 6.4/08
WARNING
!

Residential Steambath Generator Systems
Installation, Operation & Maintenance Manual
mr.steam®steamtherapy®
TABLE F C NTENTS
Read Me First! & Warning Sticker . . . . . . . . . . . . . . . . . . . . . 1
Select Your Mr.Steam Model. . . . . . . . . . . . . . . . . . . . . . . . . 2
_______________________________________________________________
INSTALLER’S SECTI N
BeforeInstalling.................................3
SteamRoomGuidelines............................3
Locating the Steam Generator Unit . . . . . . . . . . . . . . . . . . . 4
TypicalInstallation...............................4
MS Super 1E, 2E, 3E Typical Installation . . . . . . . . . . . . . . . . 5
Installation: Plumbing, Water Supply, rain, Steam Outlet
Safety Valve, rain Pan, AromaSteam™ . . . . . . . . 6
SteamHeadInstallation ...........................7
Generator imensions.............................8
Electrical Specifications & Field Power Wiring . . . . . . . . . . . . 9
Wiring iagrams..............................10-11
OptionalTandemCable............................12
Initial Start-Up & Checkout, Maintenance . . . . . . . . . . . . . . 12
Optional AutoFlush System. . . . . . . . . . . . . . . . . . . . . . . . . 13
Optional rainPan..............................14
ExpressSteam..................................14
Liquid Level Control Board . . . . . . . . . . . . . . . . . . . . . . . . . 14
Replacement Parts iagram . . . . . . . . . . . . . . . . . . . . . . . . 15
ReplacementPartsList............................16
eTEMP ®C NTR LS
eTEMPO®& eTEMPO/PLUS®Installation Instructions . . . . 17-19
Installing the MSTS Remote Temperature Probe . . . . . . . 20-21
STEAM GENIE™Control
Installation...................................22
Pairing & Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . 23
_______________________________________________________________
H ME WNER’S SECTI N
eTEMP ®C NTR LS
Care Tips, Safety & Operating Information . . . . . . . . . . . . 24
eTEMPO®Operating Instructions . . . . . . . . . . . . . . . . . . . . 25
eTEMPO/PLUS®Operating Instructions. . . . . . . . . . . . . . 26-27
AROMASTEAM™ESSENTIAL OILS...................28
STEAM GENIE™CONTROL
BatteryReplacement ............................28
Operation & Module interface . . . . . . . . . . . . . . . . . . . . . . 29

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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2
M
Ma at te er ri ia al ls s o of f c co on ns st tr ru uc ct ti io on n, , r ro oo om m s si iz ze e ( (i in nc cl lu ud di in ng g r ro oo om m h he ei ig gh ht t) ) a an nd d s sp pe ec ci ia al l d de es si ig gn n
f
fe ea at tu ur re es s s su uc ch h a as s l la ar rg ge e g gl la as ss s a ar re ea as s, , a al ll l a af ff fe ec ct tt th he e s st te ea am m g ge en ne er ra at to or r m mo od de el l s se el le ec ct ti io on n. .
1.Measure length, width & height in feet of the steam/shower or tub/shower
Multiply the Length ____ x Width_____ x Height _____ =
2. Adjustments to Room Volume:
For natural stones: natural marble, Add 100%
stone, shale, glass block or concrete
For ceramic or porcelain tile on Add 30%
cement board or mortar bed
For each exterior wall or Add15% each
extra glass panel wall or panel
For each foot exceeding 8ft. in height Add 15% each foot
3. Add all figures above to obtain the Total Room Volume required
ROOM OLUME
TOTAL ADJUSTED
ROOM OLUME
SELECT Y UR MR.STEAM®
Compare your TOTAL A JUSTE ROOM VOLUME to the Specification Chart below
and select the appropriate model.
Visit www.mrsteam.com for sizing & selection calculators and additional information.
IMP RTANT: The guidelines for selecting the steambath gen-
erator is a recommendation only. Because of variables in con-
struction, these sizing instructions and specifications should
be considered as guidelines only. Mr.Steam
®
will review the
model selected provided we receive complete information,
including working drawings, specifications, and pertinent elec-
trical and construction details. Otherwise, the manufacturer
disclaims responsibility for the sizing of a model selected.
IMP RTANT: For steam rooms constructed of acrylic or syn-
thetic materials, select next lower-rated MS model.
WARNING: In considering a purchase of this steambath sys-
tem, please note that if you are pregnant, have a coronary
condition, are in poor health, are being treated for any other
medical condition, or are using medication or drugs, Mr.Steam
recommends that you obtain the approval of a physician
before use. For information about this product and safety
issues, please call us at 1.800.76.STEAM or log onto
www.mrsteam.com for a copy of the Installation/Operation/
Maintenance Manual.
IMP RTANT: The total adjusted room volume allows for up to
60 feet of insulated steam line from the MS generator to the
steam room. If the 60 foot line is exceeded consult with facto-
ry. When locating the steam generator consideration of con-
trol location must be taken into account, the maximum length
for a control cable is 60 feet. A 30 foot cable is standard, con-
tact Mr.Stam to purchase the optional 60 ft. cable (PN
103990-60)
Residential Steam Generators Specification Chart
Amps (for Total Adj Wire Water Usage Shipping
Model No. KW 240v/1P )† Room Vol. Size‡ gallons†† Dimensions* Wt. (lbs)**
MS90E 5 21 100 10 0.67 14½"L x 14¾"H x 6¾"D 30
MS150E 6 25 150 8 0.80 14½"L x 14¾"H x 6¾"D 30
MS225E 7.5 32 225 8 1.0 14½"L x 14¾"H x 6¾"D 30
MS400E 9 38 360 8 1.2 14½"L x 14¾"H x 6¾"D 30
MS SUPER 1E 10 42 475 8 1.4 17"L x 18½"H x 77⁄8"D 40
MS SUPER 2E 12 50 575 6 1.6 17"L x 18½"H x 77⁄8"D 40
MS SUPER 3E 15 63 675 4 2.0 17"L x 18½"H x 77⁄8"D 40
MS SUPER 4E 20 84 875 8 2.7 17"L x 18½"H x 77⁄8"D x 2 80
MS SUPER 5E 24 100 1075 6 3.2 17"L x 18½"H x 77⁄8"D x 2 80
MS SUPER 6E 30 125 1275 4 4.0 17"L x 18½"H x 77⁄8"D x 2 80
IMPORTANT: Add C1 suffix to Model No. for 240V/1Ph; Add B1 suffix to Model No. for 208V/1Ph.
IMPORTANT: Models SUPER 1E-6E must use eTEMPO/Plus® control.
IMPORTANT: All Mr.Steam MS Models are cULus Listed and CE approved.
NOTES: All MS Generators available in 240v/1PH, 208v/1PH and other voltages/phases.
† Amps are for 240/1PH rated units.
‡Wire size (AWG) based on minimum 90˚C rated THHN copper conductors.
Refer to the National Electrical Code for other types of conductors.
See Mr. Steam® Installation and Operation Manual for complete dimensional and installation information.
MS SUPER 4E includes two MS SUPER 1E steam generators, and require one eTEMPO/Plus® Control, and two matching steamheads. MS SUPER 5E includes two MS
SUPER 2E steam generators, and require one eTEMPO/Plus® Control, and two matching steamheads. MS SUPER 6E includes two MS SUPER 3E steam generators,
and require one eTEMPO/Plus® Control, and two matching steamheads.
*Dimensions are for generator only, without
AutoFlush® or plumbing features.
**Shipping weight and pricing are for generator
only, without control or steamhead.
†† Water usage based on 20 minutes of operation.

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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installer
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8. Windows that are part of the steam room should be double
paned and tempered safety glass.
9. Try to limit steam room ceiling height to 8 feet. Exceeding
8 feet may require a higher-rated steam generator.
10. A peel-off warning label has been provided in the
Information envelope (see Warning facsimile below).
This label is to be applied to the wall of the installed
shower or steam enclosure.
The MS series of steam generators are
for residential use only. Commercial or other nonresidential
applications void the warranty and may adversely affect
product performance.
BEF RE INSTALLING
IMPORTANT NOTES:
• This document contains important safety, operation and
maintenance information. Leave this document with the
homeowner. o not discard this document.
• iscontinue use of the steam generator and control if
the steam generator or control are damaged or otherwise
not functioning properly. oing so may result in an inop-
erative or hazardous installation
IMPORTANT: The following general information should be
used in conjunction with consultations with an architect,
designer and contractor in determining factors necessary
in providing a suitable and safe steam room.
Read these instructions before installation or service.
Although this MS steambath generator has been fully quali-
fied for shipment by Mr.Steam, the following must be
reviewed for proper, safe and enjoyable steam bathing:
• Verify that the model and accessories are correct, includ-
ing incoming line voltage.
• Insure steambath generator has been correctly sized for
the steambath room. Pay particular attention to room
volume and construction. If any questions, please refer to
Mr. Steam sizing and selection guide on page 2.
STEAM R M GUIDELINES
1. Steam room must be completely enclosed, with full
walls, door, floor and ceiling.
2. It is recommended that a gasketed door is used for
heat sealing and steam containment.
3. If tile-type or other smooth surfaced flooring is used
provide suitable anti-skid strips or equivalent, to
prevent user slipping and injury.
4. Walls and ceilings must be constructed of water-
resistant, non-corrosive surface, such as tile, marble,
molded acrylic, or other non-porous material. The
ceiling should be sloped to prevent dripping of con-
densate. If acrylic, fiberglass or other non-heat resist-
ant materials are used as part of the steam room
enclosure. Consult with the material manufacture and
see pg. 7, "Steamhead" for additional details.
5. Provide a floor drain.
6. No heating, venting or air conditioning
devices should be installed inside the
steam room.
7. Steam room tile construction information is
available from the Tile Council of America, Inc. by
purchasing the TCA Handbook for Ceramic Tile
Installation. Tel: [phone] or www.tileusa.com.
!WARNING
• Marble or glass walls or ceilings, or exterior walls “ENLARGE”
the room’s size, requiring a generator larger than one based
only on the room’s cubic foot (L x H x W) volume.
• The physical size of the unit, clearance for plumbing servic-
ing, and its distance from the steam room must all be consid-
ered before final installation.
• Consider any options and accessories before initiating installa-
tion. Read the Installation and Operation Manual of all
options and accessories available at www.mrsteam.com tech-
nical downloads.
IMPORTANT: Mr.Steam units are intended to be operated with
Mr.Steam eTEMPO/PLUS, eTEMPO and STEAM GENIE Controls
only, and are to be installed strictly in accordance with the spe-
cific instructions contained in this manual and as supplied in
the manuals provided with the controls.
ELECTRICAL SHOCK HAZAR . Mr.Steam
steam generators are connected to 240V line voltage and
contain live electrical components. All installation and service
to be performed by qualified and licensed electricians and
plumbers only. Installation or service by unqualified persons
may void the warranty.
Not Actual Size
!WARNING
REDUCE THE RISK OF OVERHEATING AND SCALDING
1. EXIT IMMEDIATELY IF UNCOMFORTABLE, DIZZY OR SLEEPY.
STAYING TOO LONG IN A HEATED AREA IS CAPABLE OF CAUSING OVERHEATING.
2. CHILDREN UNDER THE AGE OF 16 SHOULD NOT USE THE STEAM BATH.
3. CHEC 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.
5. DO NOT CONTACT STEAM HEAD OR STEAM AT THE STEAM HEAD.
REDUCE THE RISK OF SLIPPING AND FALL INJURY
1. USE CARE WHEN ENTERING OR EXITING THE STEAM ROOM. FLOOR MAY BE SLIPPERY.
NOTE: FOR ADDITIONAL SAFETY CONSIDERATIONS SEE OWNER’S MANUAL
mr.steam®43-20 34th Street , Long Island City NY 11101 1 800 76 STEAM www.mrsteam.com PUR100378 6.4/08
WARNING
!

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
_____________________________________________________________________
installer
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L CATING THE STEAM GENERAT R UNIT
Select a location as near as practical to the steam room. Typical locations include: closet, vanity cabinet, heated attic or basement.
NOTE: T E STANDARD LENGT OF T E CABLE FOR CONNECTING T E CONTROL TO T E STEAM GENERATOR IS 30 FEET. T E
STEAM GENERATOR AND CONTROL MUST BE LOCATED ACCORDINGLY. A 60 FOOT CABLE (PN 103990-60) IS AVAILABLE AS A
SPECIAL ORDER PART.
(ITEMS 1-7)
1. O NOT install steambath generator or plumbing lines in
unheated attic or any locations where water could freeze.
2. O NOT install steambath generator inside steam room.
3. O NOT install steambath generator outdoors or wherever
environmental conditions may affect the safety and/or
performance of the generator.
4. O NOT install steambath generator near flammable or corro-
sive materials or chemicals such as gasoline, paint thinners,
or the like. Installation in areas having high concentrations of
chlorine (such as pool equipment room) must be avoided.
5. Install steambath generator on a solid and level surface.
Keyhole slots are provided for wall mounting. Insure the
steam generator is properly secured and level when mounting
with keyhole slots.
6. Install steambath generator in an upright position only.
7. Steam line, safety valve, drain valve, plumbing and steamheads
become hot during operation and remain hot after shutdown
for a period of time. Provide appropriate protection, including
insulating plumbing lines. Avoid plumbing runs and steamhead
locations that can come in contact with bathers.
NOTE: FOR ILLUSTRATIVE PURPOSES ONLY.
Consult with qualified designer, architect or
contractor for steam room construction details.
Provide unions as required to facilitate
installation and disconnect of piping
Steam
Generator
Field installed
power supply
Field installed
steam supply pipe
Drain Valve should be closed
when AutoFlush is not installed
Control
cable
Steam Head (shown with optional acrylic shield)
See page 7 for Steam Head Installation information
eTEMPO®or
eTEMPO/PLUS®
Control
See page 17-22
for installation
information.
Field installed
water supply line
IMPORTANT:
The control features an inte-
gral temperature sensor. Locate the control in a
location representative of the desired steambat-
hing temperatures. Do not locate the control above
or near the steam head or direct steam emissions.
TYPICAL MR.STEAM INSTALLATI N
!WARNING IMPORTANT: (ITEMS 8-11)
8. Install anti-water hammer device as necessary.
9 . Provide a minimum of (12) inches at both ends and
top of the steam generator or as required for servicing.
See page 8.
10. Provide unions as required to facilitate installation
and disconnection of piping.
11 . Mr.Steam controls can be located inside the steam
room or on the outside of the steam room.
See CONTROL INSTALLATION section (pgs. 17-22) for
specific details. If the controls are located outside
the steam room, a remote sensor (PN MSTS) is
required (see pgs. 21-22).
NOTE: Mr.Steam Generators (inclusive of the eTempo
series Controls) are CE and UL listed.
The MS series of steam generators
are for residential use only. Commercial or other non-
residential applications void the warranty and may
adversely affect product performance. Use only
Mr.Steam eTempo®series controls.
!WARNING
When installing the optional AromaSteam™,
install a downward facing 90-degree T in the
steam supply line. See the AromaSteam™
Installation Manual for complete information.

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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5
MS SUPER 4E, 5E, 6E TYPICAL C NFIGURATI N
Installation Instructions for Models:
MS-Super 4E, MS-Super 5E and MS-Super 6E
1. Install each steam generator as in a single installation.
Install generators as close as practical to each other,
not exceeding 12 feet. The interconnecting cable length
is 12 feet.
2. IMPORTANT NOTE: Power must be disconnected at the
main electrical supply. Remove steam generator covers.
Retain screws and covers for reuse.
3. Connect the eTEMPO/PLUS®control to either unit per
instructions on pages 17-22.
4. Remove one knock-out on each generator as shown.
Insert the ends of interconnecting cable provided
(PN 103904) through the knock-outs as shown in
iagram A. Connect each end to the printed circuit
board connector labeled "TAN EM" as shown.
5. Prevent the interconnecting cable from contacting hot
surfaces such as steam outlet, safety valve and the like.
6. Connect separate plumbing and power supplies for
each unit. Replace covers with cover screws.
NOTE: The secondary unit will de-energize when the steam
room reaches steambathing temperature resulting in a
more gentle and energy efficient operation.
Diagram A
Printed Circuit Board Component
shown enlarged for illustrative purpose.
Interconnecting
Cable PN: 103904
NOTE: FOR ILLUSTRATIVE PURPOSES ONLY.
Diagram B
MS Super 4E, 5E, 6E
Typical Installation
shown with Optional
AutoFlush
Provide unions as required
to facilitate installation and
disconnection of piping
Primary Unit
Interconnecting
Cable
Control
Cable
Secondary Unit
eTEMPO/PLUS®
Control
Optional AutoFlush®, see
AutoFlush®Installation page 13
Steam Heads
shown with optional
acrylic shields
NOTE: For illu trative purpo e only. Consult with qualified designer,
architect or contractor for steam room construction details.
Water
Feed
Line
Power
Supply

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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installer
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INSTALLATI N
Plumbing
All plumbing shall be performed by a qualified licensed plumber and
in accordance with applicable National and local codes.
• Use unions on all pipe connections.
• Use only brass piping or copper tubing as permitted by codes.
• o not use black, galvanized, PVC pipe or PEX.
Water Supply (3⁄8" NPT)
1. Connect hot or cold water line. If hot water line is used hot water temperature should not exceed 160° F.
2. Provide a shut off valve in the water supply line upstream of the steambath generator.
3. o not overheat inlet solenoid valve with solder connections. Overheating will damage parts.
4. Flush inlet water line thoroughly before making connection to unit.
5. Strainer recommended upstream of feed water connection.
6. For best performance water pressure should be 15 to 20 psig.
Reduce pressure as required.
7. Provide anti-water hammer device as required.
8. Install an approved backflow preventer as required by local codes.
Drain (1⁄2" NPT)
The drain from the generator should not share an undersink trap, unless the generator
is mounted higher than the sink.
NOTE: A drain valve is provided to facilitate servicing. Provide a drain line connection from steambath generator
drain valve according to National and local Codes. Check local plumbing code for receptor, trap and vent require-
ments. o not connect rain line and Safety Valve line together. Unit drains by gravity.
Steam utlet (1⁄2" NPT)
1. o not install any valve in steam line. Flow of steam must be unobstructed.
2. Use 1/2-inch brass pipe or copper tubing from unit to steam head as permitted by codes.
3. Insulate steam line using pipe insulation rated 212° F or higher.
4.
Pitch steam line 1/4" per foot towards steam head or steam generator to avoid valleys and trapping of condensate.
NOTE: Running the steam line down and then up will create a steam trap blocking the flow of steam.
NOTE: A 1.5" hole in the steam room is required to mount the steamhead.
Safety Valve (3⁄4" NPT)
Where permitted by local codes, provide an outlet plumbing connection for safety valve.
To insure proper and automatic safety valve operation: O NOT connect a shut off valve or a
plug at safety valve outlet. O NOT connect a shut off valve or any obstruction in steam supply pipe.
Drain Pan
Mr. Steam strongly recommends the use of a drain pan in the unlikely event of a plumbing leak. Check local
plumbing codes for receptor, trap and vent requirements. rain pans drain by gravity. The drain pan is equipped
with an integral 3/4" fitting. See page 14 for additional drain pan installation information .
AromaSteam™
If the optional AromaSteam Electronic Oil elivery System ( PN : MS AROMA ) is to be installed, a 90 degree T plumbing
fitting must be installed at a designated location on the steam outlet line. See the Mr.Steam AromaSteam™
Operation and Instruction Manual (
PN : 100402) for installation information before the steam line is installed at
http://mrsteam.com/products/technical-downloads.html
!WARNING

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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7
Steam Head Installation (1⁄2" NPT)
IMPORTANT: o not disassemble steamhead. Mr.Steam’s
steamhead is shipped fully assembled and requires no
additional assembly.
Because the steam head and direct
steam emissions are very hot, locate the steam head where
incidental contact by bather with the steam head or direct
steam emission cannot occur.
NOTE: A 1.5” clearance hole around the steam pipe is
needed to mount the steamhead.
STEP 1
Locate steam head 6-12 inches above floor, except for:
• Tub/shower enclosures, install 6 inches above tub top edge.
• For enclosures with acrylic or other non-heat resistant
flooring install Acrylic Shield Part Number MS-103938.
STEP 2
Install steamhead with the oil well facing up as shown. Hand
tightening is sufficient when teflon or equal pipe thread seal-
ing compound is used.
IMPORTANT NOTE: To preserve steam head finish, do not
use wrench or other tools to tighten. DO NOT use abrasive
cleansers or chemicals. Use only water with mild soap and a
non-abrasive sponge.
Consult with supplier of acrylic, fiberglass
and other non-heat resistant enclosures for recommended steam-
head location. Use Acrylic Shield PN MS-103938. See instructions
provided with steam shield.
STEP 3
Secure a bronze drop ear fitting to a header and run a 1/2"
copper steam line from the steam generator to the drop ear
fitting. Install a temporary nipple (6" or longer)in the drop ear
fitting to locate the steamhead after the wall is finished.
STEP 4
After the wall has been finished, mark on the nipple where the
surface of the wall is. Remove the nipple and measure the
portion that was in the wall (the end to your mark). Subtract
1⁄4" from that dimension and select a brass nipple of that
length to finish the installation.
STEP 5
Wrap teflon tape around the threads of the new nipple and
screw the nipple into the steamhead. o not use wrenches
or tools which would damage the steamhead's finish.
Wrap teflon tape around the threads of the nipple and
screw the nipple and steamhead assembly you just made
into the drop ear fitting in the wall. The steamhead should
be flush with the wall and the well must be facing up.
!CAUTION
!CAUTION
Oil Well
STEP 3
STEP 4
STEP 5
Steam Supply P ipe
End of pipe to
be recessed 1/4"
(without Acrylic Shield)
1/8" (with Acrylic Shield)
1/8" minimum clearance
required when Acrylic
Shield is used. See installa-
tion instructions provided
with the Acrylic Shield.
Apply with silicone or
equal sealant as required
for moisture seal.
Use Teflon®or
equal sealant on
pipe threads
INSTALLING THE R UND & SQUARE
AR MASTEAM™STEAMHEAD
Steamhead
(shown with
optional acrylic shield)
Locating Nipple
rop Ear
Fitting

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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GENERAT R DIAGRAM
MS 90E- MS 400E MS Super 1E-3E
_________________________________
A 51⁄8(130) 71⁄4(184)
B 81⁄4(210) 97⁄8(251)
C 117⁄8(302) 121⁄2(310)
D 143⁄4(375) 183⁄4(466)
E 13⁄4(45) 13⁄4(45)
F 17⁄8(48) 23⁄8(60)
G 51⁄8(130) 4 (102)
H 5 (127) 6 (152)
I 63⁄4(171) 77⁄8(200)
J 13⁄4(45) 13⁄8(35)
K 141⁄2(368) 17 (432)
L 21⁄2(64) 23⁄8(60)
M 63⁄8(162) 63⁄8(162)
WATER INLET 3/8” NPT
STEAM UTLET 1/2” NPT
SAFETY VALVE 3/4” NPT
MANUAL DRAIN VALVE 1/2” NPT
AUT FLUSH VALVE 1/2” NPT
N TES :
1. M= ptional AutoFlush
2. All units in inches (MM)
3. MS Super 4E includes (2) MS Super 1E units
4. MS Super 5E includes (2) MS Super 2E units
5. MS Super 6E includes (2) MS Super 3E units
F
E
LM
K
G
H
I
A
J
B
C
D
Water Inlet
Control &
Accessory
Connections
Steam Outlet
Safety Valve
Optional AutoFlush
IMPORTANT NOTE: Provide a minimum of (12) inches at
both ends and top of the steam generator or as required for
servicing. Alternately, provide unions as required to facili-
tate installation and disconnection of the steam generator.
IMPORTANT NOTE: The minimum clearance from com-
bustible surfaces is zero all around.
TO AVOID EQUIPMENT DAMAGE DO NOT CONNECT
POWER SUPPLY DIRECTLY TO ELEMENTS !!!
NOTE: FOR ILLUSTRATIVE PURPOSES ONLY.
Side View Showing
Element Access Panel
Manual Drain Valve

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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9
Transformer
Liquid Level
Control Board
Water Feed
Solenoid
Water Feed
Liquid Level Probe
AutoFlush®Plug and
Play Connection
(see page 13)
Fuses
Contactor
Power Block
Power Supply
Knock-Out
Steam Outlet
Transformer
Liquid Level
Control Board
Water Feed
Solenoid
Steam Outlet
Liquid Level Probe
AutoFlush®Plug and
Play Connection
(see page 13)
Contactor
Power Supply
Knock-Out
Water Feed
FIELD POWER WIRING
TO AVOID EQUIPMENT DAMAGE DO
NOT CONNECT PO ER SUPPLY
DIRECTLY TO ELEMENTS!!!
L1, L2, GROUND TO BE FIELD IRED
NOTE: SUPER 1E 240/1 MODELS
ARE NOT SUPPLIED WITH
INTERNAL FUSING.
NOTE: FOR ILLUSTRATIVE PURPOSES
ONLY. CONSULT ITH QUALIFIED
LICENSED ELECTRICIAN FOR
ELECTRICAL INSTALLATION.
Models MS 90E – MS 400E
(single phase wiring shown)
Models MS Su er 1E - 6E
(single phase wiring shown)
ELECTRICAL
All electrical wiring to be installed by a qualified licensed elec-
trician in accordance with National Electrical Code and local
electrical code.
Power iring- ee “Field Power Wiring” Diagrams (below)
1. Check power voltage. Use 240V rated unit when supply is
greater than 208V. (Most homes have 240V, 1PH service).
Use 208V rated unit for 208V power.
2. Use minimum 90˚ C/300V rated insulated copper conduc-
tors only, sized in accordance with National Electrical
Code and local electrical code for the current in Ampere
Chart. If allowed by codes, NM cable may require a larger
wire size than as listed on the chart.
3. Connect suitably sized equipment grounding wire to
ground terminal provided.
4. Install a separate circuit breaker between supply and unit.
Provide a power supply disconnect within sight of the
steam generator or one that is capable of being locked in
the open position.
5. For single phase units, use two-wire supply source and equip-
ment grounding wire. Neutral (white) wire is not required.
CHART
____________________________________________________________________
MODEL NO. MAX ROOM KW VOLT AMP WIRE IZE
VOL (CU. FT.*) 1PH†(AWG)
________________________________________________________________________
MS-90E 100 5.0 208 24 8
240 21 10
________________________________________________________________________
MS-150E 150 6.0 208 29 8
240 25 8
________________________________________________________________________
MS-225E 225 7.5 208 36 8
240 32 8
________________________________________________________________________
MS-400E 360 9.0 208 44 8
240 38 8
________________________________________________________________________
MS-Super 1E 475 10.0 208 49 6
240 42 8
________________________________________________________________________
MS-Super 2E 575 12.0 208 58 6
240 50 6
________________________________________________________________________
MS-Super 3E 675 15.0 208 73 4
240 63 4
________________________________________________________________________
* ee page 2 for room sizing.
†All specifications shown are for 208V and 240V, single phase.
Consult factory for other voltage specifications.
Provide a power supply disconnect within sight of the steam generator or
one that is capable of being locked in the open position as permitted by code.

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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10
FACTORY
WIRING
FIELD
WIRING
L E G E N D
(All Diagrams)
CONTACTOR
HEATING ELEMENT TO PROBE CONTROL BOARD
AUTOFLUSH
(optional)
STEAM GENIE
(optional)
ETEMPO-
ET/PLUS
CONTROL
TRANSFORMER
POWER INPUT
GROUND
WATER
FEED
SOLENOID
VALVE
CONTACTOR
HEATING ELEMENT
TO PROBE CONTROL BOARD
AUTOFLUSH
(optional)
STEAM GENIE
(optional)
ET/PLUS
CONTROL
TRANSFORMER
POWER INPUT
GROUND
WATER
FEED
SOLENOID
VALVE
FUSES
SINGLE PHASE WIRING DIAGRAMS
with eTempo®and eTempo/Plus®Controls
M DEL MS SUPER-1E, 2E, 3E
(Note: Super 1E 240 does not have fuses)
M DEL MS90E, MS150E, MS225E, MS400E

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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11
INSTALLATI N INSTRUCTI NS
for Models: MS-Super 4E, MS-Super 5E and MS-Super 6E
1. Install each unit as in a single installation as close to each other as possible.
2. IMPORTANT Power must be disconnected at the main electrical supply. Remove steam generator covers.
3. Connect the eTEMPO/PLUS control to either unit per instructions supplied with the eTEMPO/PLUS control.
4. Remove one knock-out on each generator as shown. Insert the ends of interconnecting cable provided
(PN 103904) through the knock-outs as shown in diagram A, page 6. Connect each end to the printed
circuit board as shown.
5. Connect separate plumbing and power supplies for each unit.
Wiring Diagram: MS-Super 4E, MS-Super 5E, MS-Super 6E
Single Phase Models
AutoFlush
(optional)
STEAM GENIE
(optional)
ET/Plus Control
AutoFlush
(optional)
FACT ORY
WIRI NG
FIELD
WIRI NG
L E G E N D
(All Diagrams)
PRIMARY UNIT
SECON ARY UNIT

AutoFlush
(optional)
STEAM GENIE
(optional)
ET/Plus
Control
AutoFlush
(optional)
PLUG THIS END
TO MASTER UNIT
MASTER UNIT
SECOND UNIT
TO THIRD UNIT
TO FOURTH UNIT
TO FIFTH UNIT
Optional Tandem Cable for 2-5 Generators
Length is 30 ft. PN: 103917
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12
PTI NAL TANDEM CABLE
For connecting more than 2steam generators in tandem
Initial Start-Up and Checkout
1. Turn on control. Follow specific instructions pages 17-22 or those
provided with controls.
2.
Steam will begin to appear in approximately 5minutes (unless equipped
with factory-installed Express Steam option) at the steam head. Steam
will shut off when desired temperature is reached and will automatically
resume when room temperature drops below set point.
3. Steam will shut off automatically when control counts down to zero.
To shut steam off manually, turn control OFF. To clear steam from
enclosure area, turn shower on before opening door.
4. If unit does not start and control does not turn ON (control display
does not light up) then turn breaker off for 20 seconds and try again.
System Status Codes
The control (either eTempo or eTempo/Plus) may display a status code if the steam generator is not functioning properly.
Code Code Meaning Probable Cause Suggested Remedy
H20 Water level is not Water Supply is off Turn on Water Supply
satisfied within 5 min. efective water feed solenoid Check/replace water solenoid valve
Water feed probe not functioning Check/clean probe.
Check probe wiring.
Prr1Temperature Probe Error Control cable/MSTS cable cut Replace control cable/MSTS
or Prr2Internal problem with control/MSTS Replace control / MSTS
Err1Incorrect Field Supply Voltage Incorrect voltage supplied Supply steam generator with the correct
(green light on liquid level to Generator voltage noted on the data plate label.
control board will be off)
Err2Button on control is pressed Control cover misalignment Remove and reinstall control cover
for more than 5 minutes ebris behind control cover Remove control cover and clean
cover, control and keypad with a
damp cloth
Errb Water level not satisfied in a tandem set up – Check secondary generators, see H20.
Err7Liquid Level Control Board malfunction Memory error in LLCB Press ON/OFF to clear.
Replace control if code remains.
ptional and Accessory
Equipment
Refer to specific instruction sheets for installa-
tion, operation and maintenance of optional
equipment and accessories such as eTEMPO®,
eTEMPO/PLUS®, STEAM GENIE™, MSTS.

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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PTI NAL AUT FLUSH®
Box Contents
• AutoFlush Valve with Cord
• Installation instructions.
peration
The optional AutoFlush System feature automatically
drains the Mr.Steam®system following each use.
A time delay allows the water to cool down (about
two hours) before it drains by gravity for a safe and
gentle operation.
NOTE: If the Express Steam option has been installed,
the AutoFlush will drain for ten minutes then refill with
fresh water to begin the pre-heat cycle.
Installation Instructions
1. Plumbing to be performed by a qualified plumber
and shall be in accordance with applicable national
and local codes. Unit drains by gravity. A drain line
that is lower than the AutoFlush assembly must
be available. The AutoFlush System valve outlet is
threaded 1⁄2" NPT. Check plumbing code for receptor,
trap and vent requirements.
2. Use copper or brass nipple 1⁄2" NPT x 31⁄2" or longer
(not supplied) to connect AutoFlush valve (end "B")
to the rain Valve (valve end “A” and “B” are indicated
on bottom of AutoFlush Valve)
O NOT REMOVE THE RAIN VALVE
Removal may cause equipment and property damage.
If there is not enough room for the valve, an elbow and
a short nipple (not provided) can be added.
3. Open rain Valve (handle must be aligned with brass nipple).
4. Connect the AutoFlush System cord connector to
the three pin connector as shown.
o not drain into a steam enclosure or any
location where accidental contact with drain water may occur.
In the event of a power failure the AutoFlush System valve will
open and may discharge boiling water.
Sweat Fittings
When using sweat fittings use only tin base solder with a melting
point below 600 degrees F. o not overheat. Ends of water supply
tubing must be thoroughly clean for a minimum distance of 1"
from ends. o not remove valve cover.
To Check peration
1. Turn on Mr.Steam and allow tank to fill with water.
2. Turn off Mr.Steam control. Water should stay in tank.
3. Turn off power at the panel box. Water should
discharge from tank.
4. Turn on power at panel box.
5. Repeat
!CAUTION
!WARNING
!CAUTION
Drain Valve
DO NOT TURN OR REMOVE T E DRAIN VALVE
(shown in the correct open position)
Steam Generator
Nipple
Plumb to
Drain Line
AutoFlush Valve
AutoFlush Shown Fully Assembled
AutoFlush Cord
AutoFlush Valve
3Pin Connector
for AutoFlush
AutoFlush Cord
Connector
Drain Valve
(shown in the correct open position)
O NOT REMOVE THIS RAIN VALVE
Steam Generator
Nipple
copper or brass nipple
1⁄2" NPT x 31⁄2" or
longer (not supplied)
End
"B" End
"A"
Plumb to
Drain Line
Arrow indicates correct
direction of flow
PROVI E RAIN PLUMBING ACCOR ING TO LOCAL
CO ES. PLUMB AS REQUIRE FOR AUTOFLUSH SYSTEM.

PTI NAL DRAIN PAN
Mr. Steam strongly recommends the use of a drain pan in the unlikely
event of a plumbing leak.
Locate the drain pan on a solid level surface and place the steam generator
inside the drain pan. Insure the steam generator is level (see page 4for
locating the steam generator).
All plumbing shall be performed by a qualified licensed plumber and in
accordance with applicable national and local codes. Check local plumbing
code for receptor, trap and vent requirements. rain pans drain by gravity.
The drain pan is equipped with an integral female 3⁄4" NPT fitting.
PTI NAL EXPRESS STEAM
(only available factory installed)
Suitable for all MS Models. Express steam is
equipped with a low power heating element and
thermostat to keep the water in the tank warm
enough to bring up steam quicker. All express
steam components and wiring are installed at the
factory. No additional wiring or plumbing is
required by installers.
LIQUID LEVEL C NTR L B ARD - Explanation of LED Indicators
_________________________________________________________________________________________________
GREEN LE is ON when there is 208/240 Volt incoming power connected,
24 Volt transformer secondary output and on-board 5 Volt C control power are present.
_________________________________________________________________________________________________
YELLOW Water level indicator–LE is OFF when no water is detected (for more that 5 seconds). ON when
water level is satisfactory. For units with AutoFlush, if more than five hours have elapsed since
last usage and this LE is ON it is indicative of an AutoFlush or water level probe circuit malfunction.
_________________________________________________________________________________________________
RE Contactor relay indicator–LE is ON when relay is closed and sending 24 Volts to the
contactor coil. (This LE comes ON if the generator is ON.)
_________________________________________________________________________________________________
FORCE ON Press this button to operate the generator. This button is for trouble shooting only and will operate
TEST BUTTON if a control is connected or not. Pressing the button again will shut the generator OFF. The test button
will only allow the generator to operate for 10 minutes.
Liquid Level Control Board
PN 103975
(shown without wiring)
mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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14
RED(Heater)
YELLOW(Water Level)
GREEN(Power)
Force On
Test Button

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15
Transformer
Drain Line
Liquid Level
Control Board
Water Feed
Solenoid
Water Inlet
Safety Valve
AutoFlush
Valve
(optional)
Stainless Steel Tank
Heating Element
Express Steam
heater (optional)
Access Cover
Liquid Level Probe
Plug and Play
Connection (see page 13)
Power Block
Power Supply
Knock-Out
Contactor
Steam Outlet
Fuses
Nipple (not included)
MS Regular Models - MS65E - MS400E (with AutoFlush)
shown with cover removed
NOTE: FOR ILLUSTRATIVE
PURPOSES ONLY.
Some components may be
omitted or altered for clarity.
o not use for wiring, repair
or other purposes not related to
component identification.
MS Super Models - MS Super 1E- MS Super 6E (with AutoFlush)
shown with cover removed
NOTE: Super 1E 240/1
models are not supplied
with internal fusing.
NOTE: FOR ILLUSTRATIVE
PURPOSES ONLY.
Some components may be omitted
or altered for clarity. o not use for
wiring, repair or other purposes not
related to component identification.
Transformer
Drain Line
Nipple (not included)
Liquid Level
Control Board
Water Feed
Solenoid
Water Inlet
Safety Valve
AutoFlush
Valve
(optional)
Stainless Steel Tank
Heating Element
Access Cover
Liquid Level Probe
Plug and Play
Connection (see page 13)
Contactor
Power Supply
Knock-Out
Steam Outlet
Express Steam
Heater (optional)

mr.steam®steamtherapy®Installation, Operation & Maintenance Manual
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16
REPLACEMENT PARTS LIST
_______________________________________________________________________
Part No. Description Product
_______________________________________________________________________
99178MS rain Valve All Models
99297 Safety Valve 15PSI All Models
100479 Water Feed Solenoid Valve w/filter All Models
10477-3 Transformer 24VAC All Models
103975 Liquid Level Control Board All Models
103904 Tandem Cable for 2 generators (12 ft.) All Models
103917 Tandem Cable for up to 5 generators (30 ft.) All Models
103990-30 Cable for eTempo Control (30 ft.) All Models
103990-60 Cable for eTempo Control (60 ft.) All Models
MSTS Remote Temperature Probe All Models
100476-2 Contactor 50A 2-pole MS 90E-400E, Single phase
99012 Contactor 50A 3-pole All 3-Phase Models
103453 Contactor 50A 4-pole MS Super-1E – Super-6E
100471-2 Probe Assembly All Models
99096MS Heating Element Gasket All Models
103938 Acrylic Shield All Models
99314 Power Fuse 60A 250V MS-Super 1E–6E Single phase
29051BMS Heating Element 5 KW 208V MS 90E
29051CMS Heating Element 5 KW 240V MS 90E
29061BMS Heating Element 6 KW 208V MS 150E
29061CMS Heating Element 6 KW 240V MS 150E
29071BMS Heating Element 7.5 KW 208V MS 225E
29071CMS Heating Element 7.5 KW 240V MS 225E
29091BMS Heating Element 9 KW 208V MS 400E
29091CMS Heating Element 9 KW 240V MS 400E
29101BMS Heating Element 10 KW 208V MS SUPER-1E & MS Super-4E
29101CMS Heating Element 10 KW 240V MS SUPER-1E & MS Super-4E
29121BMS Heating Element 12 KW 208V MS SUPER-2E & MS Super-5E
29121CMS Heating Element 12 KW 240V MS SUPER-2E & MS Super-5E
29151BMS Heating Element 15 KW 208V MS SUPER-3E & MS Super-6E
29151CMS Heating Element 15 KW 240V MS SUPER-3E & MS Super-6E
103978-30 Cable for STEAM GENIE (30 ft.) All models
103978-60 Cable for STEAM GENIE (60 ft.) All models
104058 Steam Genie All Models
104059
Genie Interface Module All Models
104060 5 foot Steam Genie Interface Cable All Models
103978-60 60 foot Steam Genie Interface Cable All Models

mr.steam®steamtherapy®eTempo®Controls
_________________________________________________________________________
eTEMP ®C NTR LS
Dimensional Information for the Round
and Square eTempo®and eTempo/Plus®
BOX CONTENTS:
• eT EMPO or eTEMPO/PLUS Control
• Control Cable (30 ft.)
• Steam head
• Tube of Silicone Sealant
• Owner’s Manual
Before Installing
Turn power to the steam generator OFF before connecting the control to the
generator. Failure to turn the power off will result in an inoperable control.
o not use any eTEMPO/Plus, eTEMPO or STEAM
GENIE™controls without reading and understanding the Mr.Steam steam
generator Installation and Operation Manual (PN 101289 Revision number
10.0/08 or higher). Failure to read and understand these instructions may
result in an inoperative or hazardous installation.
A peel and stick warning is provided with the Mr.Steam steam generator
Installation and Operation Manual. This label is to be applied to the wall of
the installed shower or steam enclosure.
Install the eTEMPO or eTEMPO/Plus controls according to installation
instructions. Failure to install according to instructions will result in an
inoperative control or hazardous overheating or inadequate heating of the
steam room.
If an eTEMPO or eTEMPO/Plus control is installed outside the steam room a
Remote Temperature Probe (PN MSTS) must be installed inside the steam
room per installation instructions supplied with the Remote Temperature
Probe. Failure to install according to instructions will result in an inopera-
tive control and overheating of the steam room.
o not route eTEMPO/Plus, eTEMPO or STEAM GENIE
control wiring inside conduit together with power lines or close to hot water
or steam piping. oing so may result in an inoperative or hazardous installation.
o not alter or modify eTEMPO/Plus, eTEMPO or STEAM GENIE controls.
oing so may result in an inoperative or hazardous installation.
IMPORTANT NOTES:
• Turn power to the steam generator OFF before
connecting the control to the
generator.
Failure to turn the power off will result in an inoperable control.
• o not operate eTEMPO/Plus, eTEMPO or STEAM GENIE controls with other than a
Mr.Steam eTEMPO compatible steam generator. Mr.Steam residential steam generators
with serial numbers lower than 900000, or any other brand of steam generator are not to
be operated with eTEMPO controls. oing so may result in an inoperative installation.
• This document contains important safety, operation and maintenance information.
Leave this document with the homeowner. o not discard this document.
• iscontinue use of the steam generator or control if the steam generator is damaged 0or
otherwise not functioning properly. oing so may result in an inoperative or hazardous
installation
!CAUTION
!WARNING
17
am
4.000
4.000
.920
.900
03.900
0.800
12" long pigtail
.884
on
off
p1
p2
timetemp
aroma
chroma
on
off
p1
p2
timetemp
aroma
chroma
mr steam
mr steam
installer

mr.steam®steamtherapy®eTempo®Controls
______________________________________________________________________
installer
18
eTEMP ®C NTR LS
Installation Instructions for Round and Square
eTempo®and eTempo/Plus®
Step 1
etermine the desired installation location of the control.
The eTEMPO and eTEMPO/Plus controls are designed to be
installed inside or outside the steam room as a matter of
personal preference.
If the control is installed inside the steam room the control
must be located:
• 4-5 feet above the floor
• The control features an integral temperature sensor. Locate the
control in a location representative of the desired steambathing
temperatures. o not locate the control above or near the
steam head or direct steam emissions.
• on a vertical wall
The control cable length is 30 feet. Insure that the control and/or
steam generator are located accordingly. Contact a Mr.Steam tech-
nical service representative if a longer cable is required. Contact
Mr.Steam for optional 60 ft. cable, PN 103990-60
If the control is installed outside the steam room a Remote
Temperature Probe Part Number MSTS must be installed inside
the steam room.
Insure Mr.Steam steam generator is eTEMPO compatible and
has a serial number 900000 or higher.
IMPORTANT: See installation instructions for the MSTS
Temperature Probe before rough-in or installation of control
(pg. 21-22).
Step 2
Make a one-inch diameter hole in the desired control location
( iagram 1). o not oversize or undersize the hole.
Step 3
Route the control cable (provided with the control) from the wall
cutout to the steam generator. Connect the black round Mini- in
connector to the steam generator connector as shown in iagram 2.
NOTE: The connector is keyed with the flat facing up.
IMPORTANT: Be careful not to strain, staple, pinch or
otherwise damage the control cable. Route cable as required
to permit replacement. Do not route cable in metallic conduit.