Page 4
INSTALLATION INSTRUCTIONS FOR SG SERIES
SG-9,
SG-14,
SG-18,
SG-23,
SG-27,
SG-36
STEAM UNIT THERMOSTAT TERMINALS
i.
- Identify the HI TEMP and the LO TEMP
terminals in the low voltage control side of the
steam unit main electrical connection box.
ii. -Connect the two HI TEMP terminals in the low
voltage control box to the "COM" and "NO"
terminals in the bottom of the A350 thermostat
control.
iii. -Connect the two LO TEMP terminals in the low
voltage control box to the "COM" and "NO"
terminals in the bottom of the S350 (right)
thermostat control.
POWER SUPPLY TO A350 (LEFT) THERMOSTAT
i -
Identify the "Thermostat 24 Volt" terminals in
the low voltage control side of the steam unit
main electrical connection box.
ii -
Identify the "24V" and "COM" terminals in the
upper left side of the HI TEMP model A350
thermostat. The COM terminal will already
have one wire from the temperature sensor
connected.
iii - Connect the + (plus) terminal in the control box
to the 24V thermostat terminal.
iv - Connect the - (minus) terminal in the control
box to the COM thermostat terminal together
with the wire from the temperature sensor.
The thermostat temperatures have been pre-set at
the factory. The HI TEMP at 115
o
F, and the LO
TEMP at 90
o
F. The differential is preset at 1 degree.
8. AIR SWITCH
To facilitate the final installation of the air switch
actuator button, indicator light, and mounting
plate assembly, cut a diamond shaped hole (4
inches across the flats) in the wall at standard
switch height, just outside or inside the steam
room door. Install a conduit to give access to
this 4 inch diamond shaped hole for installation
of a 5/16 inch plastic air line hose and a #18
AWG 2 LVT wire for the indicator light.
When mounting the button and plate assembly
to anchors in the wall, care must be taken to
protect the wires attached to the back of the
LED indicator light, as they can be damaged by
careless handling. Care must also be taken not
to kink the air line hose.
i - Using the plastic tubing provided, connect
the sender button, (on the back) to the air switch
nipple located on the outer upper side of the
steam unit low voltage electrical box.
ii - At the “Indicator Lamp" terminals in the
steam unit low voltage control box, connect the
orange wire to the + (plus) terminal and the white
wire to the - (minus) terminal. The polarity must
be correct for the LED indicator to operate.
Note: Silicone may be used to seal around the Air
Switch assembly plate when mounting it to the wall.
9 ELECTRICAL SUPPLY
Must be wired to
comply with local code. See “CAUTION 7" on page
5. According to most electrical codes, a disconnect
must be placed within easy reach or sight of the
steam generator. NOTE: Use Copper Wire Only
The heater elements installed in the SG series
Relax-A-Mist steam generators will be one of the
combinations listed in Figure 2, depending on the
combination that was ordered. Please check the
product label on your Relax-A-Mist generator to
ensure it is compatible with the electrical supply.
Connect the supply wires to terminals L1, L2 and
L3, (if provided) which are found in the right side of
the main electrical connection box (see the wiring
diagram in these instructions and on the inside of
the electrical connection box cover.)
Note: The dash ---- lines denote field hookup.
10. PRESSURE RELIEF
The boiling tank
pressure relief is a 23 inch water column that must
be piped to an open drain (through the drain piping
kit). Fill the pressure relief loop with water when
installing, before startup and insert it into the drain
kit column. Install the pressure relief loop so there
is an air gap at the drain column to avoid siphoning
it dry. See “Component Description” diagram page.
11.
OPTIONAL EQUIPMENT
All Relax-A-Mist
model SG steam generators are equipped to accept
the installation of a metal stand, remote switching, a
scent pump and a no steam switch, (all purchased
separately).
Remote Switch
A remote device, such as a
building computer may control the daily operation.
This switch must be capable of switching 3 Amps @
24 Volts AC. See “CAUTION 8” on page 5.
