Invacare 3800 User Manual
SECTION 2—PARTS AND INSTALLATION
20
Plumbing Installation
DANGER
Be certain all plumbing work is performed by a qualified plumber and is in
compliance with local codes.
WARNING
Some state and local plumbing codes require the installation of a “reduced pressure
zone” (RPZ) assembly on both the incoming hot and cold supply lines to prevent
back flow contamination into the potable water system. Invacare recommends you
check local plumbing code requirements to determine if RPZs are required on your
tub installation. RPZs are NOT supplied by Invacare and are to be provided by the
customer if required.
The hot water supply to the tub MUST NOT exceed 110°
The hot water supply to the tub MUST NOT exceed 110°
F (43° C) to protect the
user from scalding.
CAUTION
Purge water lines. Hot and cold lines MUST be purged (blown down) to clear lines
of debris prior to connection. Valves and spray heads may become inoperable and/
or damaged if lines are not properly cleared. Items damaged in this way are not
covered under the warranty.
When operating water pressure exceeds 55 p.s.i., pressure regulators (similar to the
When operating water pressure exceeds 55 p.s.i., pressure regulators (similar to the
¾-inch Watts U5) MUST be installed.
1. Route the plumbing lines in the following manner:
• 1 or 2 Wall Installation ‐ Plumbing lines must be routed from the back wall or up
from the floor.
• 3 Wall Installation ‐ Plumbing lines may be routed from the side wall.
location of the tub drain, hot water stub and cold water stub.
3. Measure the location of the drain on the unit as an extra precaution.
4. Install the drain in the floor in the appropriate location determine in STEPS 2 and 3.
5. Purge water lines. Hot and cold lines MUST be purged (blown down) prior to
4. Install the drain in the floor in the appropriate location determine in STEPS 2 and 3.
5. Purge water lines. Hot and cold lines MUST be purged (blown down) prior to
connection, to clear lines of debris.
6. Install On/Off valves at wall and use unions between valves and stubs.
7. Connect hot and cold supply lines to ¾‐inch copper pipes found on back of tub in
7. Connect hot and cold supply lines to ¾‐inch copper pipes found on back of tub in
accordance with applicable building codes (FIGURE 2.7).
8. Connect 2‐inch drains in accordance with local plumbing codes.
9. Assemble hand held shower wand. Be sure to use the washers supplied.
9. Assemble hand held shower wand. Be sure to use the washers supplied.
CAUTION
DO NOT run pump without water in the tub. Serious damage could result. Pump
requires water for cooling.