Gerber TREYSTA™ Valve System - Tub and Shower Rough-in Valve Assembly Standard Installation and Thin Wall Installation Instructions

Use with trim kits for Gerber

SAFETY TIPS:

When using a solder alloy that has a tin content of greater than 95%, you may need to use more heat than can be supplied by using MAPP gas or propane.
Avoid heat damage: Remove the cartridge and inner valve components before soldering.

BEFORE YOUR INSTALLATION:

Check the local plumbing code requirements before installation.

TREYSTA VALVES MEET OR EXCEED THE FOLLOWING STANDARDS: ASME A112.18.1/CSA B125.1 and ASSE 1016.

FAUCET INSTALLATION PROCEDURES

Gerber always recommends that plumbing products be installed by a licensed professional.

Shut off the water supply
All plumbing is to be installed in accordance with applicable codes and regulations

ROUGH-IN VALVES

For standard shower wall construction, position the valve so that the plaster guard is flush with the interior finished wall.
For thin wall installation, use a 3" hole saw to cut a hole with the same center as the valve location.
2.1 If the valve comes with "stop", use a 1.5" hole saw to cut two openings "A1" & "A2" on the side as shown. If the valve comes with "diverter", use a 1.5" hole saw to cut the opening "B" on the bottom side as shown

2.2 Use two #10 screws, length depending on wall thickness, to secure the valve assembly to the wall.
For vertical inlet bodies only: first determine the direction of inlets, from top or bottom. If from the top, do the following:
Top-Down Installations Only:
3.1 Remove plaster guard.

3.2 Loosen screws 1/2 turn, DO NOT REMOVE SCREWS. Rotate retainer 180°. The arrow must point up.

3.3 Secure the retainer and tighten the screws.

3.4 Replace plaster guard.

Note: Up arrow on the plaster guard and retention ring always needs to be aligned, pointing up.
For stop removal, usea 7/8" socket to remove the nut. Stops are open when the screwdriver slot is horizontal. Stops are closed when the screwdriver slot is vertical.
For the pressure test cap, use the following configuration for different types of pressure testing.