Moen 1225 - User Manual

1225 Cartridge: Moentrol with Integrated Transfer Valve
This article will provide step-by-step instructions on how to replace a 1225 cartridge in a 3320, 3330 and 3350 Moentrol
with an Integrated Transfer Valve shower system. In this two handle shower system, the 1225 cartridge is located
behind the lower handle and controls the flow and temperature of the water.
Preparation:
• The water supply shut off valves must be turned off- see article How to Turn Off the Water Supply to the
Faucet.
• Recommended Tools: Phillips Screwdriver & Pliers
• The following instructions assume the handle and associated handle pieces have been removed. For additional
details, visit Vertical Spa: Moentrol with Integrated Transfer Valve and select the type you are repairing. The
faucet guide will contain specific information on handle assemblies associated with that style of product.
• We recommend covering the drain before beginning so to not loose any parts down the drain.
Egg-Shaped Escutcheon Plate (Prior to 2007):
Disassembly:
1. To remove the upper mounting cup (#2A), use a Phillips screwdriver
to unthread the upper mounting cup screws (#1A) counter-clockwise.
Repeat this step for the lower mounting cup (#4A) and lower mounting
cup screws (#3A).
Assembly:
1. Slide
the new
cartridge
(#8A) into
the brass
valve
body
(#9A). Use
the
twisting
tool to
position
the
cartridge
(#8A)
correctly
in the
valve
https://solutions.moen.com/Article_Library/1225_Cartridge%3A_Moentrol_with_Integrated_Transfer_Valve
Updated: Wed, 14 Sep 2022 18:42:34 GMT
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Summary

Preparation for Cartridge Replacement

Disassembly Procedures

Egg-Shaped Escutcheon Plate Disassembly

Step-by-step instructions for disassembling the shower system with an egg-shaped escutcheon plate.

Oval Shaped Escutcheon Plate Disassembly

Instructions for removing parts from shower systems with oval shaped escutcheon plates.

Assembly Procedures

Egg-Shaped Escutcheon Plate Assembly

Instructions for reassembling the shower system with an egg-shaped escutcheon plate.

Oval Shaped Escutcheon Plate Assembly

Steps for reassembling shower systems with oval shaped escutcheon plates.

Moen 1225 Specifications

General

Type	Cartridge
Compatibility	Moen Single Handle Faucets
Compatible Faucet Brands	Moen
Model Number	1225
Brand	Moen
Material	Brass
Handle Type	Single Handle