The Moen 1225 cartridge is a component used in Moentrol with Integrated Transfer Valve shower systems. This article details the installation and replacement procedures for this cartridge, based on available documentation. The 1225 cartridge controls the flow and temperature of water in two-handle shower systems. Successful installation requires preparation, specific tools, and careful adherence to the steps outlined in the provided materials.
Preparation and Safety Precautions
Prior to commencing any work on the Moen 1225 cartridge, it is essential to turn off the water supply. The documentation specifies that the water supply shut off valves must be turned off. If shutoff valves are not present under the sink, the water supply to the entire home may need to be shut off. After turning off the water supply, it is recommended to turn the faucet on to relieve any remaining water pressure.
A cautionary note emphasizes the importance of reviewing each step before installation, as faucet models may have slightly different instructions. Covering the drain during the process is also recommended to prevent loss of small parts.
Skill level and estimated completion times vary. The documentation suggests completion times of approximately one hour for beginners, 30 minutes for those with intermediate skills, and 15 minutes for advanced users.
Required Tools
The following tools are recommended for the installation or replacement of the Moen 1225 cartridge:
- Adjustable wrench
- Channel-lock pliers
- Open-ended wrench
- Safety glasses
- Flashlight
- Screwdrivers (Phillips)
- Hex wrench (7/64th or 3/32nd, depending on the faucet model)
- Soft bristled nylon brush (e.g., old toothbrush)
Disassembly Procedures
The disassembly process varies depending on the escutcheon plate style. For egg-shaped escutcheon plates manufactured prior to 2007, the following steps are outlined:
- 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).
The documentation notes that instructions assume the handle and associated handle pieces have already been removed. Additional details regarding handle assemblies can be found in faucet-specific guides.
Cartridge Removal and Installation
The Moen 1225 cartridge is located behind the lower handle of the shower system and controls water flow and temperature. To replace the cartridge:
- Slide the new cartridge (#8A) into the brass valve body (#9A).
- Use a twisting tool to position the cartridge (#8A) correctly in the valve.
Before installing the new cartridge, it is recommended to clean the inside of the valve body with a soft bristled nylon brush to remove any mineral buildup. The documentation also suggests flushing the valve before installing the new cartridge.
Specific Faucet Compatibility
The documentation specifically mentions compatibility with the following Moentrol shower systems:
- 3320
- 3330
- 3350
The documentation also references a Vertical Spa: Moentrol with Integrated Transfer Valve faucet guide, which may contain specific information related to handle assemblies.
Conclusion
Replacing the Moen 1225 cartridge involves careful preparation, the use of specific tools, and adherence to a defined set of steps. Prioritizing safety by shutting off the water supply and reviewing the instructions before beginning is crucial. The process differs slightly depending on the faucet model and escutcheon plate style. Proper installation ensures continued control of water flow and temperature in compatible Moentrol shower systems.
Sources
- Tutorial: Installing the Moen 1200 or 1225 Cartridge
- Moen 1225 Cartridge: Moentrol with Integrated Transfer Valve
The provided source material is insufficient to produce a 2000-word article. Below is a factual summary based on available data.