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

2. Slide off the escutcheon plate (#5A).

3. Grab ahold of the stop tube (#6A) and pull it forward until it has been

removed.

4. Lift the tab at the top of the U-shaped copper colored retaining clip

(#7A) just enough to grab it with your hand to fully remove. Be

careful not to drop the clip (#7A) behind the wall.

5. Using the plastic twisting tool (see Image A below) provided in the

1225 cartridge kit (#8A), rotate the cartridge (#8A) 1/4 of a turn (90

degrees) in either direction. This will help loosen the cartridge (#8A).

Remove the twisting tool from the top of the cartridge (#8A). Pullout the

stem of the cartridge (#8A) until it stops. Using pliers, grab the stem of

the cartridge (#8A) and pull the cartridge (#8A) out. This may require

some effort. If you are replacing the 92451 service kit, see 92451

Cartridge Service Kit Repair Guide for additional details.Note: It is

highly recommended to clean and flush the valve body (#9A)

before installing the new cartridge (#8A). See Valve Body Cleaning

and Flushing for additional details.

Image A:

body

(#9A). The

plastic

tabs on

the

cartridge

(#8A)

must be

centered

on the

slots on

the valve

body

(#9A),

which are

located at

the 12 and

6 o'clock

positions.

2. Gently slide the

copper clip (#7A)

back into the brass

valve body (#9A)

on top of the

cartridge (#8A). If

you encounter any

resistance, do not

force the copper

clip (#7A). The

cartridge (#8A)

may not be

properly aligned

(see step 1). If for

any reason the

copper clip (#7A)

cannot be

installed, the

water cannot be

turned back on to

the shower

system until the

copper clip (#7A)

is replaced.

https://solutions.moen.com/Article_Library/1225_Cartridge%3A_Moentrol_with_Integrated_Transfer_Valve

Updated: Wed, 14 Sep 2022 18:42:34 GMT

3. Rotate

the stem of the

cartridge (#8A)

so the small

notch is facing

down. The notch

on the stem of

the cartridge

(#2) determines

the hot and cold

location. If the

hot and cold are

reversed, rotate

the stem of the

cartridge (#8A)

180 degrees.

4. Slide the stop tube (#6A) back

onto the valve body (#9A).

5. Position the escutcheon plate

(#5A) with the word "Moen" upright

and slide it onto the valve body

(#9A).

6. Position the upper mounting cup

(#2A) so the screw holes lines up

with the screw holes on the valve

body (#9A). While holding the

upper mounting cup (#2A) in

position, use a phillips screwdriver

to thread the upper mounting cup

screws (#1A) clockwise until tight.

Repeat this step with the lower

mounting cup (#4A) and lower

mounting cup screws (#3A).

Oval Shaped Escutcheon Plate (After 2007):

https://solutions.moen.com/Article_Library/1225_Cartridge%3A_Moentrol_with_Integrated_Transfer_Valve

Updated: Wed, 14 Sep 2022 18:42:34 GMT

Disassembly:

1. To remove the escutcheon plate (#2B), use a Phillips screwdriver

to unthread each of the four escutcheon screws (#1B) counter-clockwise.

2. Grab ahold of the stop tube (#3B) and pull it forward until it has been

removed.

3. Lift the tab at the top of the U-shaped copper colored retaining clip (#4B)

just enough to grab it with your hand to fully remove. Be careful not to drop

the clip (#4B) behind the wall.

4. Using the plastic twisting tool (see Image 1 below) provided in the 1225

cartridge and cartridge repair kit, rotate the cartridge (#5B) 1/4 of a turn (90

degrees) in either direction (see Image 2 below). This will help loosen the

cartridge (#5B). Remove the twisting tool from the top of the cartridge (#5B).

Pullout the stem of the cartridge (#5B) until it stops. Using pliers, grab the

stem of the cartridge (#5B) and pull the cartridge (#5B) out (see Image 3

below). This may require some effort. If you are replacing the 92451 service

kit, see 92451 Cartridge Service Kit Repair Guide for additional

details. Note: It is highly recommended to clean and flush the valve

body (#6B) before installing the new cartridge (#5B). See Valve Body

Cleaning and Flushing for additional details.

Image 1 Image 2 Image 3

Assembly:

1. Slide

the new

cartridge

(#5B) into

the brass

valve body

(#6B). Use

the

twisting

tool to

position

the

cartridge

(#5B)

correctly in

the valve

body

(#6B). The

plastic

tabs on the

cartridge

(#5B) must

centered

on the

slots on

the valve

body

(#6B),

which are

located at

the 12 and

6 o'clock

positions.

2. Gently slide

the copper clip

(#4B) back into

the brass valve

body (#6B) on

top of the

cartridge (#5B).

If you encounter

any resistance,

do not force the

copper clip

(#4B). The

https://solutions.moen.com/Article_Library/1225_Cartridge%3A_Moentrol_with_Integrated_Transfer_Valve

Updated: Wed, 14 Sep 2022 18:42:34 GMT

cartridge (#5B)

may not be

properly aligned

(see step 1). If

for any reason

the copper

clip (#4B)

cannot be

installed, the

water cannot be

turned back on

to the shower

system until the

copper clip

(#4B)

is replaced.

3. Rotate

the stem of the

cartridge (#5B)

so the small

notch is facing

down. The notch

on the stem of

the cartridge

(#5B) determines

the hot and cold

location. If the

hot and cold are

reversed, rotate

the stem of the

cartridge (#5B)

180 degrees.

4. Position the escutcheon plate

(#2B) so the word "Moen" appears

upright and slide it onto the valve

body (#6B).

5. Using a Phillips screwdriver,

thread each of the four escutcheon

screws (#1B) clockwise until tight.

For additional information on Moen products visit solutions.moen.com and select the type of product you are repairing.

The guide will contain repair details, troubleshooting and specific information on assembling handles associated with

that style of product.

https://solutions.moen.com/Article_Library/1225_Cartridge%3A_Moentrol_with_Integrated_Transfer_Valve

Updated: Wed, 14 Sep 2022 18:42:34 GMT

Still Not Finding What You're Looking For?

Non US? Moen Canada | Other International Sites

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Updated: Wed, 14 Sep 2022 18:42:34 GMT

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