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.

NOTE: The TC-110, TC-135, DSC-425, and DSP Controls are designed to work with all Steamist “SM” Generators.

1. Pre-Installation

1. 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.

2. 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).

3. Route power supply cable to the location where the Steam Generator will be installed (before walls are closed).

2. Electrical Rough-In

1. 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).

   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.

3. Steam Generator Electrical Installation

1. Remove the six screws holding the electrical access cover and remove cover.

2. Locate the supply line knockout. Mount proper strain relief into knockout hole.

3. Strip back power cable's outer insulation jacket eight inches and insert into steam generator. Strip back insulation 1½" from the three (3) incoming wires (two power and one ground).

4. Connect incoming ground wire to floating green pigtail labeled "GND."

   CAUTION: Be sure the ground wire does not come in contact with a live electrical part.

5. Connect incoming power to floating black pigtail leads labeled "L1" and "L2.” (See illustration: Figure 2. Internal Electrical Connections).

4. Optional Auto Drain Valve Connection

1. Open knockout for Auto Drain Valve conduit connection.

2. Route flexible conduit from valve to knockout and secure.

3. Connect two wires from valve to the two place terminal strip provided (See figure 2).

Figure 1: Shows a diagram of the steam generator with water inlet, steam outlet, safety relief valve, and optional auto drain connection.

Figure 1 Description: The diagram shows a Steam Generator unit. Key components labeled include: Water Inlet (3/8" Compression Fitting), 3/4" Steam Outlet, 3/4" Safety Relief Valve, Optional Auto Drain Connection. The unit should be installed upright and level. A note indicates that if not equipped with an Optional Auto-Drain, the 1/2" Outlet should remain capped.

Checklist

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 a GFI (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.

Figure 2: Major Electrical Components

Figure 2 Description: This diagram illustrates the major electrical components of the Steamist SM-11. It shows the connection points for the control cable (via modular jack and multi-conductor cable in conduit), the optional Steamist splitter for two controls, the protective covering, the terminal strip for auto drain connection, the water level probe, the printed circuit board, and the main electrical supply wire connections (L1 & L2 Power Connections, Ground Connection). It also details the optional auto drain connection and the location of the ½" outlet which should remain capped if the auto-drain is not used.

Installation Diagram

Figure 3: Typical Installation

Figure 3 Description: This figure depicts typical installation scenarios for the Steamist SM-11. It shows an 'Outside Installation' with a TC-110 or DSP Timer Only, and an 'Inside Installation' where the control (TC-135, DSC-425, and DSP Temperature Control) must be installed inside the shower, mounted four feet from the floor, in a location convenient to the bather but not directly in the line of shower sprays or above the steamhead. The diagram illustrates routing the control cable from the control to the steam generator in a 3/4" conduit. It also shows field wiring to the steam generator, with a note about using appropriately fuse protected 208/240V wiring. A note indicates that 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).

Wiring Schematics and Specifications

240/208 VOLT SINGLE PHASE SCHEMATIC

Description: This schematic shows the wiring for a single-phase 240/208V system. It details the connections from the Steamist Control (Low Voltage LLC-1300-3 Circuit Board) to the Steam Generator. Key components shown include the water level probe, heating elements, auto-drain thermostat, water solenoid valve, and terminal blocks. Field connections are noted to use 90°C wire, gauge No. 6 copper. Notes indicate that fuses are only supplied with 208 Volt Single Phase Generators.

240/208 THREE PHASE SCHEMATIC

Description: This schematic illustrates the wiring for a three-phase 240/208V system. It shows connections from the Steamist Control (Low Voltage LLC-1300-3 Circuit Board) to the Steam Generator, including the water level probe, heating elements, auto-drain sensor, water solenoid valve, and a contactor/relay. Field connections are noted to use 90°C wire, gauge No. 8 copper.

SPECIFICATION CHART

LED COLOR CHART

• DS1 GRN TIMER ON
• DS2 YEL HEAT ON
• DS3 AMB WATER FILL ON
• DS4 RED POWER ON

Contact Information:

East Coast Office: 275 Veterans Blvd., Rutherford, NJ 07070 • Tel: (800) 577-6478 • Fax: (201) 933-0746

West Coast Office: 315 W. Pondera St., Suite F, Lancaster, CA 93534 • Tel: (800) 355-6478 • Fax: (661)940-1617