mr. steam MS-90 Instruction manual

PUR101289
Rev. 11-96
INSTALLATION, OPERATION & MAINTENANCE MANUAL
r
- S
at
m®
STEAMBATH GENERATOR SYSTEMS FOR
RESIDENTIAL APPLICATIONS
MODELS: MS-65, MS-90, MS-150, MS-225, MS-300, MS-400
MS-SUPER1, MS-SUPER2, MS-SUPER3
For Serial No. P74701 and up
READ ALL INSTRUCTIONS BEFORE INSTALLING OR SERVICING!
LEAVE THIS MANUAL WITH OWNER
MR. STEAM a division of SUSSMAN-AUTOMATIC CORPORATION, 43-20 34th Street, Long Island City, NY 11101
Telephone: [phone] - Toll Free: 800-76-STEAM - FAX No. 718-472-3256

BEFORE INSTALLING
IMPORTANT
Take a minute to read these instructions before installing or servicing. Although this MS
steambath generator has been fully qualified 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, including incoming line voltage.
-
Insure steambath generator has been correctly selected for the steambath room. Pay
particular attention to room volume and construction. If any questions, please
refer
to
MR. STEAM sizing guide enclosed. (see page 9)
-
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 servicing and its distance from the
steam room must all be considered
before
final installation.
IMPORTANT
411,

MR. STEAM units intended to be operated with optional accessories, such as digital timer
and/or temperature controls, are to be installed strictly in accordance with the specific
instructions supplied with these optional accessories and the information contained in this
manual.
STEAM ROOM REQUIREMENTS
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 flooring is used, install anti-skid strips or equivalent, for safety.
4.
Walls and ceilings must be covered with water-resistant, non-corrosive surface, such as
tile, molded acrylic, fiberglass, etc.
5.
Provide a
floor drain.

ELECTRIC
POWER
II
II
I
WATER
FEED
%HUT
OFF VALVE
STRAINER
DRAIN
STEAM
LINE
LOCATING THE STEAM GENERATOR UNIT
Select a location as near as possible to the steam room. Typical locations include: closet, vanity
cabinet, insulated attic or basement.
1.
For best performance locate steambath generator within 20 feet of steam room.
See page 9 for guidance if generator is greater than 20 feet from steam room.
2.
Do not install steambath generator inside steam room.
3.
Do not install steambath generator outdoors.
4.
Do not install steambath generator in unheated attic or basement where water could freeze.
5. Do not install steambath generator near combustible or corrosive materials and chemicals.
6.
Install steambath generator on a solid and level surface.
7.
Install steambath generator in an upright position only.
8.
Provide access to top and ends of steambath generator for servicing.
9. Steam line, safety valve and drain valve become hot during operation. Provide appropriate
protection.
10.
SMART/ONE, SMART/TWO and SMART/PLUS controls can be located inside the steam
room or on the outside of the steam room. See SMART/ONE instructions for specific
details.
TYPICAL MR. STEAM INSTALLATION
SMAR
CON
-
I
t
i
t
i
STEAM
HEAD
I/ONF.
ROI.
STEAM
ROOM
,.......„
.....
7-
\
-3-

INSTALLATION
Plumbing
All plumbing shall be performed by a qualified plumber and in accordance with applicable
national and local codes.
-Use unions on all pipe connections.
-Use only brass piping or copper tubing
- Do not use black, galvanized or PVC pipe.
Water Supply - (3/8" NPT)
1.
Connect hot or cold water line. Hot water line is preferable. Hot water should not
exceed 160' F.
2. Provide a shut off valve in the supply line.
3.
Do 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 is required if there are solid particles in the water.
6.
Incoming water supply should not exceed 120 psig. For best performance, water pressure
should be 15 to 20 psig.
111. 
Steam Outlet - (1/2" NPT)
1. Do not install a valve in steam line. Flow of steam must be unobstructed.
2.
Use 1/2-inch brass or copper pipe from unit to steam head.
3. Insulate steam line.
4. Pitch steam line to avoid valleys and trapping of condensate.
Steam Head
1.  Locate steam head 6 to 12 inches from floor, except:
- For tub/shower enclosures, install steam head 6 inches above tub top ledge.
-
When used in shower stall with acrylic or other non-heat resistant floors, install steam
head 20-30 inches from floor or use a MR. STEAM steam shield MS-103412.
2. If steam room is provided with seat(s), locate steam head as far away from seat as
possible.
3.
Install steam head with steam emission slot facing downward.
4.
CAUTION - To preserve steam head finish, do not use wrench or other tools to tighten.
Hand tightening is sufficient.
-4-

PROVIDE 12" SERVICE ACCESS
1 2" 
AT SIDE SERVICE PANEL
USE UNIONS WHEN
INSTALLING
H
1/2" STEAM
OUTLET
3/8" WATER FEED
3/4" SAFETY
VALVE
1/2" DRAIN VALVE
( SEE INSTRUCTIONS )
Drain - (1/2" NPT)
NOTE: A drain valve is provided to facilitate servicing.
Where local codes permit, provide a drain line connection from steambath generator drain
valve. Check plumbing code for receptor, trap and vent required. Unit drains by gravity.
Safety Valve - (3/4" NPT)
Where permitted by local codes, provide a connection for safety valve.
WARNING: To insure proper and automatic safety valve operation, DO NOT connect shut off
valve to or plug, safety valve outlet.
MODEL NO.
L
W
H
MS65-MS400
14
3/4
6
7/8
14
1/2
MS-SUPER 1, 2,
3
19
3/4
7
7/8
18
3/4
-5-

Electrical
All electrical wiring shalibe installed by a qualified electrician, in accordance with local and
national codes.
Power Wiring
- SEE "INPUT POWER" DIAGRAMS
1.
Check power voltage. Use 240V rated-unit when supply is greater than 208V. (Most
homes have 240V, 1PH service available.)
2.
Use minimum 90 deg. C/300V copper conductors only, sized in accordance with National
and Local electrical codes for the amps in chart below.
3.
Connect equipment grounding wire to ground terminal provided.
4.
Install a separate circuit breaker between supply and unit.
5.
On single phase units, use two-wire supply source with ground. Neutral (white wire is not
required).
Model No.
Maximum Room
Volume, Cu. Ft.*
KW Volts
Amp
MS-65 65
4.5
208
240
2?
19
MS-90 100
5.0
208
240
24
21
MS-150
175
6.0
208
?40
29
25
MS-225
250
7.5
208
240
36
'.3 -5,
MS-300
325
8.5
208
240
41
36
MS-400 375
9.0
208
240
44
38
MS-Super 1 475
10.0
208
240
49
42
MS-Super 2 575
12.0
208
240
58
50
MS-Super 3
675
15.0 208
240
73
63
•
*See page 9 for room sizing.
-6-

GROUND
CONTACTOR
MS65 TO MS-400
WIRE TO L1-L2 TERMINALS
AS SHOWN
POWER
BLOCK
Ll

L2
GROUND
CONTACTOR
POWER WIRING
INPUT POWER
Ll

L2
INPUT POWER
MS-SUPER SERIES
WIRE TO POWER BLOCK
AS SHOWN

CHECK OUT AND OPERATION
•

1. Turn on SMART/ONE.
-
When using standard SMART/ONE control, follow specific instruction sheet provided
with controls.
-
When using optional digital timer and/or temperature controls, follow specific instruction
sheets provided with controls.
2.

Steam will begin to appear in a few minutes at the steam head.
-
When the installation includes an optional air switch, press button once and release if no
steam appears after 5 minutes.
-
When system is equipped with an "optional room temperature control or digital
timer/temperature control," steam will shut off when desired temperature is reached and
will automatically resume.
3.

Steam will shut off automatically when SMART/ONE counts down to zero.
- To shut steam off manually, push optional air switch once or turn off SMART/ONE.
-
To clear steam from enclosure area, turn on shower before opening door.
•

OPTIONAL
EOUIPMENT
Refer to specific instruction sheets for installation, operation and maintenance of optional
equipment and accessories such as SMART/ONE, SMART/PLUS, SMART/REMOTE,
AUTOFLUSH, etc.
MAINTENANCE
MR. STEAM steambath generators are desig.n
.
ed for unattended operation and require little
maintenance. Other than periodic draining, maintenance procedures are not required. Every 2
months, or more often in "hard" water areas, the drain valve should be opened fully flushing
out accumulated materials, salts and other particles which are natural by-products of boiling
water. Note: For best results, this should be done immediately after using the steambath
generator, while contents are still hot and with the control off! The unit will refill automatically
when power is reapplied. In areas of very hard water, a MR. STEAM autoflush system and
water treatment is recommended for generator longevity.
-8-

Five Easy Steps To Properly Select . . .
( - "Th
The MR. STEAM model selected depends on the steam room volume and the type of construction used.
"The Intelligent Steambath" for Your Home
1)
Measure the Length, Width and Height in feet of the steam shower or tub/shower being used.
L 
,W 
,H
2)
Multiply the Length X Width X Height to give you the room
volume = BASIC CUBIC FEET

(a)
3)
If the interior wall construction material within the steam area is composed of natural
marble, stone, slate, glass block or concrete, place on line (h) the same figure
appearing on line (a).

(h
)
4)
TOTAL (a) AND (h) TO OBTAIN (c).

(c)
5)
Increase (c) by 15% for each of the design features noted below ONLY if they describe your steambath
installation:
•
One exterior outside wall

(d)
•
Tile on mud wall

(e) 
•
An extra glass panel in addition to the door

(t) 
•
A cast iron tub
 (g)
•
For steambath rooms higher than 8 ft.,
please add 15% for each foot above 8 ft.
 (h) 
•
If generator is more thant 20 feet from steamhath
room, add 15% for every 20 feet distance.

(i)
ADD LINES (d) TIIRU (1) TO LINE (c) = (i) TOTAL CUBIC FEET REQUIRED

(i
)
Compare the cubic foot requirements (i) to the selection chart on hack of page 6 and select the appropriate model.
If the total cubic feet required (I) is two times or more the value noted in position (a), we strongly recommend that
you specify either an optional Digital Timer & Temperature Control or a Digital Temperature Control.
It is important to specify the correct voltage. Standard voltages are 240 Volts, single phase and 208 Volts, single
phase.
IMPORTANT
The above selection formula tOr sizing the steambath generator are recommendations only. Because of all
the numerous variables in construction, materials, and insulation (values) these sizing instructions and
specifications should he considered as guidelines only.
It is best that you consult your professional bath planner to evaluate the particular requirements before a
MR. STEAM unit is selected.
MR. STEAM personnel will review the appropriateness of the unit selected as tong as we receive complete
information, incluclin ,
' working drawings, specifications, and pertinent electrical and construction details
from the owner, architect, or engineer. Otherwise, the manufacturer disclaims responsibility for the sizing
of a unit selected.
—9—

4'
IP 
Stria
4 - 4 0.4 
Po - 1 VI gs-24„
1,
60 4
4)
ti
le  The information contained in this section is intended to aid qualified service personnel in the testing and
repair of steambath generators.
To avoid electric shock, disconnect generator from electric voltage supply.
All
servicing must be
performed by qualified personnel only.
PROBLEM
PROBABLE CAUSE SUGGESTED REMEDY
System is not working Electric power is off Turn power on
Control is "OFF" or in "PAUSE" mode
Turn control "ON"
Temperature control is set too low Set control to higher temperature
System is heating up Wait 5 minutes for steam
NOTE: The following servicing information is intended for use by qualified personnel only. It is
not intended for the home owner and/or end-user of this equipment. If there is any question,
consult with qualified personnel or the manufacturer.
PROBLEM
PROBABLE CAUSE SUGGESTED REMEDY
System is not working
Improper installation
Review instructions
Incorrect power supply Check power supply
Transformer malfunction
Check transformer output* -
Replace, if necessary
Control is inoperative Check control operation* -
Replace, if necessary
Water is not feeding
See below
Unit is not heating
See below
Water is not feeding
Supply valve is closed
Open Valve
Clogged water line
Check water line
Low water pressure Water pressure must be at least
15 prig
Clogged solenoid valve built-in filter
Remove obstruction
*See Major Electrical Components Test (page 13)
TROUBLE SHOOTING
•
—10—

PROBLEM PROBABLE CAUSE
SUGGESTED REMEDY
Water is not feeding
(continued)
Probe is shorted to ground
Check for shorts
Liquid level control board malfunction
Check water solenoid operation
operation*
Solenoid valve malfunction
Check valve - Replace if
necessary
Unit is not heating
Drain valve is open
Close drain valve - Check for
leaks
Unit is flooding See below
Liquid level control malfunction
Check liquid level control for
contactor operation*
Contactor malfunction
Check contactor operation
Heating element Malfunction
Check heating element
Flooding (water
continuously flows out
of steam head)
Loose probe connection
Check probe connection
Liquid level control malfunction Check probe operation
Solenoid valve malfunction Check valve
Drain is hacking up
Check drain plumbing
Too much water in steam
See below
Too much water in
steam
There is a valley (trap) in steam line
Check plumbing
Steam line is not insulated
insulate steam line
Steam line is over 20 feet
Relocate steam generator closer
to steam room
Not enough steam (not
hot enough)
Unit is undersized
Check sizing
Voltage is insufficient
Check power supply
Heating element malfunction
Check heating element
Leak in steam line
Check steam line - Use only
brass pipe or copper tubing.
Steam is intermittent
See next page
*See Major Electric Component Test (page 13)

PROBLEM PROBABLE CAUSE
SUGGESTED REMEDY
Steam is intermittent Temperature control is set too low
Control turns steam on and off at
set temperature - Turn control
higher, as desired
There is a valley (trap) in steam line,
allowing water to block flow of steam
Correct pitch of steam line
Loose electrical connection
Check wiring
Drain is leaking
Check drain valve
Safety valve or tank is leaking
See below
Safety valve or tank is
leaking
There is a valley (trap) in steam line
Check plumbing
Clogged steam line
Check steam line
Clogged steam outlet
Check steam outlet
Too much steam (too
hot)
Unit is oversized
Add room temperature control or
air switch
Temperature control is set too high
Set control to lower temperature
Fuse blows out or
circuit breaker trips
Fuse or circuit breaker is undersized
_
Check current rating
Over voltage (current)
Check voltage (current)
Short circuit
Check wiring
Heating element malfunction
Check heating element
HeatinL
,
element burns
out
Over voltage
Check voltage
Liquid level control malfunction
Check p.c. board contactor
operation*
Probe shorted to ground
Check probe circuit
Loose electrical connection
Check wiring
Contactor malfunction
Check contactor*
Too much calcium build-up on element Flush generator after each use
*See Major Electrical Components Test (pagel3)

MAJOR ELECTRICAL SYSTEMS TEST
Transformer Test
1.
Power to unit is on.
2.
Check voltage input at Liquid Level Control Board = 24VAC.
3.
If voltage is OVAC, replace transformer. If voltage is less than 24VAC, check incoming power.
Control Test
1.
Power to unit is on.
2.
Transformer test is good.
3.
Turn control on.
4.
Check voltage at terminals "wht" & "yel" of the Liquid Level Control Board = 24VAC.
5.
If voltage is OVAC, check control wiring and connections for proper fit and installation.
Water Solenoid Test
1.
Power to unit is on.
2.
Control test is good.
3.
Drain water from unit by opening manual drain valve (not necessary if unit has a functioning
autoflush valve).
4.
Turn control on.
5.
Check voltage at "PUMP" contacts on the Liquid Level Control printed circuit board = 24VAC.
If voltage = OVAC, then proceed to probe test.
6.
Check voltage at the gray and white wires at water solenoid = 24VAC.
7.
If voltage is 24VAC, and water does not enter, replace water solenoid valve.
Probe Test
1.
Turn power off.
2.
Drain water from unit by opening manual drain valve (not necessary if unit has a functioning
autoflush valve.)
3.
Disconnect purple wire and green/yellow wire from the Liquid Level Control Board labeled "Probe"
and "GND".
4. Check resistance between the purple wire and green/yellow wire.
5.
With water level low, probe resistance should be open, if not, replace probe.
-13-

POWER INPUT
L1

L2
CONTROL
CONNECTOR
9-ACX

TRANSFORMER
CAW FILE
•
PLKPLE
CONTACTOR
I
I I
GROUND
wnE
WATER
FEED
SOLENOID
VALVE
O
C).1
PAY
HEATING
ELEMENT
TO
PROBE
IJQUID LEVEL
CONTROL BOARD
)

CONTROL
CABLE

SMART/ONE
CONTROL
•
VARISTOR
UGHT 9-LE
I

I

1111
1111
MR STEAM SINGLE PHASE WRING DIAGRAM
MODELS MS-65, MS-90, MS-150, MS-225, MS-200, MS-400
WITH SMART/ONE CONTROL
•
Contactor
1.
Power to unit is on.
2.
Water solenoid test is good.
3.
Turn control on.
4.
Check voltage at "Contactor" & L2 contacts on the Liquid Level Control printed circuit board =
24VAC.
5.
Check voltage at blue and white wires at the contactor coil = 24VAC.
6.
If contactor coil voltage is 24VAC and contactor is not engaging, then contactor must be replace.
-14-

-15-
(it 41)
GROUND
•
G1AY
HEATING
ELEMENT
TO
PROBE
LIQUID LEVEL
CONTROL BOARD
POWER INPUT
TRANSFORMER

CARK 3J-E
WO(
VARISTOR
UGHI" ELLE

1111
CONTROL
CABLE

SMART/ONE
CONTROL
-<
--C
Ll L2 L3

G

CONTROL
CONNECTOR
CONTACTOR
MR STEAM THREE PHASE WIRING DIAGRAM
WITH SMART/ONE CONTROL
WATER
FEED
SOLENOID
VALVE
Aa
LIDIT 3LE

1

1

1111
II
POWER INPUT

r ,
rI
L1 I

L2
B
H
O •
MAW
Art
HEATING
ELEMENT
wirE
LIQUID LEVEL
CONTROL BOARD
WATER
FEED
SOLENOID
VALVE
().<

WITE
F-
I
I
I
I
GRAY
TO
PROBE
VARISTCR
GROUND
CONTACTOR
MR STEAM SINGLE PHASE WIRING DIAGRAM
MODES MS-SUPER-1, MS-SUPER-2, MS-SUPER-3
WITH SMART/PLUS CONTROL
CONTROL
CONNECTOR
TRANSFORMER
El‘PA ELLE
CONTROL
CABLE
SMART/PLUS
CONTROL
FUSES
G
ELACX
I

c:
2
777/

/0D'.477
Contact factory for 3 Phase heating elements.
—16—
MR. STEAM REPLACEMENT PARTS LIST
Item No.
Part No.
Description
1
99178MS
Drain Valve
2
99297 Safety Valve 15PSI
3
100479
Water Feed Solenoid Valve w/filter
4
100477-1
Transformer 24VAC
5
103675
Liquid Level Control Board
6
100476-1
Contactor 40A 2-pole
(MS65,-400 except below)
6
99012
Contactor 50A 3-pole
(MS300-400/208V & all 3 Phase)
6
103453
Contactor 50A 4-pole
(MS-SUPER/Single Phase)
6
103453
Contactor 4 Pole
(MS-SUPER)
7
100471-2
Probe Assembly
8
99096W
Heating Element Gasket
9
29041BMS
Heating Element 4.5KW 208V
(MS65)
9
29041CMS
Heating Element 4.5KW 240V
(MS65)
9
29051BMS
Heating Element 5 KW 208V
(MS90)
9
29051CMS
Heating Element 5 KW 240V
(MS90)
9
29061BMS
Heating Element 6 KW 208V
(MS150)
9
29061CMS
Heating Element 6 KW 240V
(MS150)
9
29071BMS
Heating Element 7.5KW 208V
(MS225)
9
29071CMS
Heating Element 7.5KW 240V (MS225)
9
2908 IBMS
Heating Element 8.5KW 208V
(MS300)
9
29081CMS
Heating Element 8.5KW 240V (MS300)
9
29091BMS
Heating Element 9 KW 208V
(MS400)
9
29091CMS
Heating Element 9 KW 240V
(MS400)
9
29101BMS
Heating Element 10 KW 208V
(MS-SUPER 1)
9
29101CMS
Heating Element 10 KW 240V
(MS-SUPER 1)
9
29121BMS
Heating Element 12 KW 208V
(MS-SUPER 2)
9
29121CMS
Heating Element 12 KW 240V
(1S-SUPER 2)
9
29151BMS
Heating Element 15 KW 208V
(MS-SUPER 3)
9
29151CMS
Heating Element 15 KW 240V
(MS-SUPER 3)