Owners Manual / Installation Guide
Installation Instructions
Installation and Operational Manual
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Boutique Collection
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Solid Stone® Tubs
mtibaths.com / 8
Installation Instructions – Airbath
1. The blower and check valve must be remotely located from the tub (See Illustration A on next page). The
blower and check valve may be remote mounted up to 8’ from the bath. The check valve must be located at
least 2” above the top rim of tub. The air hose leading to the blower may be installed under the floor and the
blower and check valve located inside a utility or linen closet. MTI does not recommend locating the blower
more than 8’ from the tub to prevent heat loss from the blower to the tub. Use care not to crush or restrict
the airflow in the line in any way.
Note: 1” schedule 40 PVC pipe and pipe insulation may be used to help retain the warmth from the blower.
Do NOT use insulation within 8” of the blower. The blower needs sucient air space surrounding it for
circulation, and must be installed in a climate controlled environment.
2. A 110V, 15 Amp GFCI outlet is required for the air blower. The blower is equipped with a 29” power cord to
plug directly into this outlet. Keep in mind, the outlet, as well as any electrical equipment, must be easily
accessible for any future service. The blower draws 9.5 amps.
3. The air hose that attaches to the check valve and manifold (factory installed underneath the tub), can exit
the tub either through the side of the pedestal base or from directly underneath the tub, depending on
the blower location. Side exit would only be used in cases where the tub is very close to the wall, or has
cabinetry around it to conceal the plumbing. MTI does not pre-drill the pedestal base for side exit (Photo A).
4. The check valve MUST be mounted at least 2” above the top rim of the tub. A common location is near the
blower in a closet or cabinet. The check valve can be mounted to the framing or wall with pipe hanger, pipe
clamp, metal straps or wire ties (See Illustration A on next page).
5. Use 1” PVC flexible hose or rigid schedule 40 to connect the check valve to the tub. Connect the check
valve to the blower using the grey hose provided. Secure blower using wood screws through the mounting
feet. Connect the sensor wires to the blower (See Illustration A on next page). The sensor wires are factory
installed to the two small chrome sensor heads on either side of the drain (Photo B) and allow the purge
cycle to activate (see page 8 and/or step 8 at bottom of this page for more details about the autormatic
purge cycle). Do not attempt to remove the sensor wires from the tub. The sensor wires must be located and
attached to the blower for proper operation.
6. Connect the keypad cable to the remote control module and the module to the blower. The keypad plugs
into the jack on the right side and the cable from the left jack connects to the blower
(See Illustration B on next page).
7. The keypad can be mounted convenient to the bather, or simply left unattached if only the remote control is
desired.
8. Plug the blower into the outlet and test for operation. After the tub is turned o, the light on the keypad will
be flashing, indicating the purge cycle is activated.
Note: All air baths are equipped with an automatic drying cycle. The blower will turn on for 1-2 minutes
approximately 7 minutes after the bath is drained. The blower LED blinks during the drying cycle countdown.
This drying cycle cannot be cancelled. Any attempt to cancel this cycle only resets the countdown timer.
If your bath came equipped with an air system, there are several considerations and important installation
procedures to follow.
The instructions on pages 7-9 apply to ALL air baths.
Manifold
Air Hose
PHOTO A PHOTO B
Sensor Wire
Connects to
blower