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®
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INSTALLATION INSTRUCTIONS
INSTALLATION
1. Finish Frame
A fi nish frame under the shell rim should always be
constructed to support the bath deck and ensure proper
drainage toward the bath well. This frame is not intended
to support the full bath weight. See
Figures 1 and
2
. Allow ample clearance for any equipment that may
installed on the bath.
CAUTION: Ambient temperature under the
bath where equipment is installed must not
exceed 122°F (50°C).
Drop In Framing
The drop in opening should be approximately one (1) inch
[2.5cm] less than the outer dimensions of the bath. Full
size templates are included with the bath packaging for
oval tubs.
Figure 1
Alcove Framing
For 3-wall alcove installations, install a 1”x 2” ledger strip
to support the tile lip fl ange. See the
Integral Tile Lip
Alcove Installation
section for further instructions.
Figure 2
2. AirMasseur
®
Ventilation (AM baths)
A minimum ventilation opening of 2” x 4” [5x10cm] for the
AirMasseur blower is required. It should be designed to
draw in indoor ambient air at a minimum of 72°F [22°C].
3. Drain and Overflow
Install the drain and overfl ow assembly to the bath shell
according to the instructions provided with the drain and
position the bath in the area of intended installation. Finish
plumbing rough-in of drain and overfl ow assembly. At this
time, considerations should be made for the position and
mounting of the faucet set, as well as all related plumbing.
4. Packing Board Removal
The bath is equipped with separate bath equipment sup-
port bases which are joined for shipment with packing
boards. Before installing the bath, detach the packing
board from the bath and from underneath the equipment.
WARNING: Any modification to the equip-
ment is not recommended and will void the
Manufacturer’s warranty.
5. Level Installation
The bath must be installed level to ensure proper draining.
To verify, use a level on top of the deck on both ends and
front of the bath. Jason baths are designed to be supported
at the base of the bath. If the fl oor is smooth and level, the
bath’s Level Form™ Base will provide proper drainage and
support (see Figure 3).
Mortar is required when the subfl oor is not smooth and
level or when additional sound insulation is desired.
Note:
Do not use a sand bed to install or level the bath.
Figure 3
BATH LIP SUPPORT
ACCESS OPENING
[IF REQUIRED]
WALL STUDS
FLANGE SUPPORT
Full Support Base
