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mr

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C U S E R I E S

Installation, Operating & Maintenance Manual

3

BEFORE INSTALLING

IMPORTANT:

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1. Verify that the model and accessories are as specified and

ordered.

2. Verify that the power voltage and control voltage at the 

site is suitable for the CU Steambath Generator.

3. Verify the correct steam generator sizing by referring to 

the Mr. Steam sizing guide. See page 5.

4. DO NOT use black iron pipe or galvanized pipe for the

steam line. Use brass pipe or copper tubing ONLY, and 
in accordance with National and local plumbing Codes.

5. The physical size of the unit, clearance for plumbing 

servicing and its distance from the steam room must all 
be considered before selecting a location for the generator.
See pages 3 & 4.

6. The Manufacturer's Data Report is supplied with the gen-

erator.  This is an important document and may be
required by a State or Provincial Agency. THIS DOCU-
MENT MUST BE SECURED IN A SAFE LOCATION.

7. Do not use or install unauthorized components, acces-

sories or products on the generator or generator piping.

IMPORTANT: 

The Mr.  Steam Digital 1 System operating

and over temperature control is to be installed in accor-

dance with the specific instructions provided. See Note 7

below.

STEAM ROOM GUIDELINES

IMPORTANT: 

The following general information should be

used in conjunction with your architect, designer and contrac-
tor in determining all factors necessary in providing a suitable
and safe steam room environment for your bathers.

IMPORTANT: 

Owners/operators should obtain a copy and

familiarize themselves with the latest edition of the American
College Sports Medicine Health/Fitness Faculty Standards
and Guidelines, or a similar resource and reference publica-
tion, and refer to those guidelines for the proper and safe
operation of a spa facility including steam rooms.
Steam room construction information is available from the Tile
Council of America, Inc. at (864) 646-8453 or www.tileusa.com
1. Steam room must be completely enclosed, with full walls,

door, floor and ceiling.

2. It is recommended that a gasketed door be used for heat

sealing and steam containment. Windows, skylights and the
like that are part of the steam room should be double
paned. Only vapor sealed fixtures approved for the appli-
cation should be used.

3.

If tile or other smooth surface is used for

the flooring, provide suitable anti-skid strips or equivalent,
to prevent user slipping and injury.

IMPORTANT: 

4. Walls and ceilings must be constructed with 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 condensate on bathers. If acrylic,
fiberglass or other non-heat resistant-  materials are used as
part of the steam room enclosure, see page 7, “Steamhead”
and “Acrylic Shield” for important additional details.

5. Provide floor drains for condensate run-off and steam room

cleaning.

6. Comply with all applicable National and local building 

and electrical Codes and confer with design consultants
and contractors for room construction details.

7. The Digital 1 Temperature Control System is

required operating equipment for each steam room. The
operating temperature control is to be set by the
owner/operator to sense desired room temperature at the 
sensor location within the steam room. Connection of the
Digital 1 Over Temperature cut-off is mandatory to provide
additional protection to the bathers. The steam room is to
be operated in accordance with “Important” ºinformation
as noted above.

IMPORTANT:  

Final selection of the steam room temperature

setting is at the discretion of the owner/operator.

CAUTION

!

CAUTION

!

Summary of Contents for CU-1000

Page 1: ...tors Installation Operation Maintenance Manual Models CU 360 through CU 4500 Installation Operation Maintenance Manual _______________________________________ IMPORTANT LEAVE THIS MANUAL WITH THE OWNE...

Page 2: ...ass Installation 24 Water Gauge Gauge Glass Use and Care 25 24 hour and 7 day Time Switches 25 Trouble Shooting 26 Check PC Boards Probes Steam Solenoid Valve Digital 1 Control Heating Element 27 Elem...

Page 3: ...authorized components acces sories or products on the generator or generator piping IMPORTANT The Mr Steam Digital 1 System operating and over temperature control is to be installed in accor dance wit...

Page 4: ...only They are to be located indoors in a dry clean location and are not to be subjected to moisture conden sate hose wash down or the like 2 Do NOT install steambath generator outdoors or wherever env...

Page 5: ...ble surfaces Refer to Fig 2 above for legend A 1 above top of CU generator B Front of CU generator suitable for alcove installation only D 1 from rear of CU generator EL 1 from left side of CU generat...

Page 6: ...____ CU 1400 36 1400 3 8 1 20 30 38 300 _____________________________________________________________________________________________________ CU 2000 48 2000 1 2 1 24 33 44 330 _______________________...

Page 7: ...to exceed 100 psig 5 Install a back flow preventor as required by Code 6 Provide anti water hammer device as required in accordance with Code 7 Provide unions as required to facilitate installation an...

Page 8: ...am room enclo sure install each steam head 20 30 inches above the floor 2 Locate each steamhead away from bather seating area and away from traffic patterns as required to prevent incidental contact w...

Page 9: ...______________________________________________________________________________________________ CU 1400 36 100 87 44 35 _________________________________________________________________________________...

Page 10: ...th National Electric and local Codes Disconnect all power supplies at the main disconnect switch before proceeding 1 Electric wiring to the steambath generator must be in accordance with National Elec...

Page 11: ...IMPORTANT Owners operators should obtain a copy and familiarize themselves with the latest edition of the American College of Sports Medicine Health Fitness Faculty Standards and Guidelines or a simi...

Page 12: ...or more steam solenoid valves in parallel 2 When generator services two rooms second room requires a Digital 1 and Solenoid Valve s CONTROL CIRCUIT WIRING DIAGRAM Digital 1 Temperature Control System...

Page 13: ...emperature Control System and optional automatic blowdown assembly For Models CU 1000AB3 CU 1000AC3 CU 1250AB3 CU 1250AC3 CU 1400AB3 CU 1400AC3 NOTES 1 Larger rooms may require two or more steam solen...

Page 14: ...n the steam room at the location selected by the designer architect DO NOT LOCATE THE Digital 1 SENSORS NEAR OR ABOVE THE STEAM HEAD S AS THIS MAY CAUSE DIRECT STEAM EMISSION TO INTERFERE WITH STEAMRO...

Page 15: ...ails including location of steam head s and sensors DIGITAL 1 KIT CONTENTS Mr Steam CU Steambath Generator can be used for one or two steam rooms in accordance with Page 5 Item D Each room requires on...

Page 16: ...ove 4 diameter blank cover located on steam generator Mount the Digital 1 faceplate on the back of the generator cabinet with provided screws and nuts For one room installation use the upper blank 2 C...

Page 17: ...EAR OR ABOVE THE STEAMHEAD S AS THIS MAY CAUSE DIRECT STEAM EMISSION TO INTERFERE WITH STEAMROOM TEMPERATURE REGULATION Route sensor cable directly to Digital 1 Control Do not route sensor cable with...

Page 18: ...e the Operating Manual for the Digital Timer PUR 100383 for complete installation instructions NOTE All drawings are for illustrative purposes only Steam Vents CU AUTOFLUSH GRN WHT BLK BRN Blowdown Co...

Page 19: ...he owner operator decreases below the set point the Digital 1 Control will energize the steam solenoid valve s and allow steam to enter the steam room Once the set temperature on the control is reache...

Page 20: ...rain valve should be closed Auto blowdown light should be OFF 3 Turn the override switch to permanent OFF 0 On Off Switch pilot light and generator should be OFF Auto blowdown light should be ON Motor...

Page 21: ...SAGE DISPLAY Under normal operation the actual room temperature will be displayed the following messages may also appear the Digital1 Control alarm will also sound press SET and DOWN simultaneously to...

Page 22: ...under the age of 16 should not use this facility 3 Check with a doctor before use if pregnant diabetic in poor health or under medical care 4 Breathing heated air in conjunction with consumption of al...

Page 23: ...cautions to prevent damage to building drain plumbing Consult with a licensed plumber NOTE ASME blowdown separator tank systems are available from Mr Steam For more information please contact Mr Stea...

Page 24: ...n and illustrations MAINTENANCE INSTRUCTIONS To establish a good preventive maintenance pro gram we suggest that the site equipment fore man engineer or owner operator familiarize them selves with the...

Page 25: ...is pointing directly upward Verify top and bottom fittings are threaded into the tapping the same number of turns dis tance A distance B 3 Remove glass packing nut friction washer or packing gland de...

Page 26: ...ATER GAUGE GAUGE GLASS USE AND CARE D DO O N NO OT Ts s DO NOT use glass if it contains any scratches chips or any other visible signs of damage DO NOT reuse any tubular glass or glass packings DO NOT...

Page 27: ...________________________________________________________________________________________ LWCO not functioning Check replace LWCO probe _________________________________________________________________...

Page 28: ...robe threads and reinstall 6 After installation make sure probe is not touching ground With generator drained and probe wires disconnected there should be no resistance X between probe and ground Chec...

Page 29: ...ge 6 Apply Slic Tite Gasket Compound or equal to both surfaces of new gasket supplied with replacement element Proceed to install element flange assembly with gasket between boiler flange and element...

Page 30: ...r 7day AutoFlush Blowdown Clock optional Heating Elements Drain Valve Motorized AutoFlush Blowdown Valve On Off Switch Gauge Glass CU 360 CU 1400 TYPICAL COMPONENT ARRANGEMENT CU 2000 4500 with Digita...

Page 31: ...______________________________________ 99314 Power Fuses 208 240V 60A 250V ________________________________________________________________________ 99317 Fuse Block 480V ______________________________...

Page 32: ..._______________________________________________ 99290 Pressure Gauge 0 30 PS ______________________________________________________ 99969R HI LIMIT Ccontrol w Manual Reset 15PSIG _____________________...

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