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Assembly
Use pliers to operate the cartridge. Turn on water and check system
for leaks. If there are no leaks, turn OFF water.
For style A & B : Install escutcheon plate and stop tube.
The notched flat on the cartridge stem must point UP. Install
handle parts as shown in the exploded parts view.
For style C :
Attach stop tube to the valve body. Next, attach the
escutcheon using provided hardware. Place the washer on the
cartridge stem and attach the adapter and brake assembly using
the screw. Attach handle using set screw.
Stop Operation
CC - This type is integral with casting, actuated by screwdriver, and require a
90° turn to open or close. When the screwdriver slot is vertical, the rubber
stop is closed, and when the slot is horizontal, the rubber stop is open.
IPS - This type has been added to the basic shower casting and is actuated
by screwdriver. The stop is opened by rotating in a counterclockwise direc-
tion until it stops and closed by rotating in a clockwise direction until it bot-
toms.
MT662C
7" DIA
(178mm)
SHOWER
TUB
2" CC
(51mm)
2-3/16" IPS
(56mm)
SUPPLY
SUPPLY
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7" DIA
(178mm)
SHOWER
TUB
2-1/8" CC
(54MM)
3-3/4" IPS
(95MM)
4-5/8" FOR C.C.
(117mm)
6" FOR I.P.S.
(152mm)
SUPPLY
SUPPLY
‰
‰
‰
‰
‰
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‰
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‰
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4-1/2"
(114mm)
PLASTER GROUND
SIZE AND WALL
OPENING
WITHOUT STOPS WITH STOPS
‰
RUBBER STOP VALVE
(WITH SCREW DRIVER SLOT)
CLAMP SCREW
I.P.S.
C.C.
Install Shower Arm & Tub Spout
MAKE SURE ALL WATER SUPPLIES ARE OFF.
SHOWER: Install flange on long end of arm. Wrap threads on both ends of shower arm with thread seal tape.
Screw long end of shower arm into wall. Do not install showerhead prior to flushing (see Flushing).
C.C. SPOUT: The Moen Slip Fit spout is designed with an O-ring seal. It is specifically designed for installation with copper water tube. Lookout must
be free from burrs inside and out. The edge must not be rolled inward from a dull tubing cutter. The outside surface must be free from nicks and scratches.
Press and twist the spout onto the lookout upside down. Tighten the clamp screw with a 5/32" hex wrench until it just starts to bind. Turn spout upright into
position against the wall and finish tightening the clamp screw by hand. The use of pliers or another wrench on the hex wrench is not necessary.
Do not overtighten.
Rough-In
4- port: (2700 SERIES): Install casting with "UP" at the top (arrow pointing up). If the valve is to be used
for both a shower and a tub, connect the top outlet to the shower (36" minimum riser) and the bottom out-
let to the tub (6" minimum drop), using 1/2" iron pipe size or 1/2" copper water tube, 5/8" O.D. (If the valve
is to be used for a shower only or a tub only, plug the outlet not being used.)
3-port (2600 SERIES): These models may be used as either a shower or a tub filler. Since they are fac-
tory set in the shower position, with the outlet up, you must reverse the position of the cartridge retainer
clip when using the valve as a tub filler. Accomplish this change during the assembly process. Remove
the stop tube, pull the clip out from the bottom of the casting, rotate cartridge stem 180° and replace clip in
the top, then proceed with assembly, using 1/2" iron pipe size or 1/2" copper water tube.
WARNING: Secure all pipes and the shower and tub drop ells. Use thread seal tape on all threads.
Use a plain ell on the tub drop. A twin ell is not needed. CHECK SYSTEM FOR LEAKS BEFORE
CLOSING WALL.
MAKE SURE ALL WATER SUPPLIES ARE OFF.
PROTECTIVE
CAP
SCREW
HOLE
ACCESS
STOP
TUBE
COVER
RETAINER
CLIP
CARTRIDGE
EAR
NOTCHED FLAT
ON STEM
STOP
TUBE
WASHER
ALWAYS KEEP POINTER UP
HANDLE
KNOB
HANDLE
SCREW
HANDLE
COVER
HANDLE
LEVER
SCREW
SET
SCREW
HANDLE
LEVER
STOP TUBE
HANDLE ADAPTER &
BRAKE ASSEMBLY
C
H
IMPORTANT FINAL CHECK - ALL INSTALLATIONS: If above instructions have been followed correctly there will be clearance between the handle and the
escutcheon when the handle is pushed into the closed position, otherwise the valve will not shut off.
CAUTION
These valves are equipped with
Moen's long-life 1225 cartridge,
designed for smooth, trouble free
operation. When soldering, do not
heat valve any higher than neces-
sary to flow the solder. Overheating
may damage the cartridge or rubber
stop valves. Following this direc-
tion will allow you to solder without
removing the cartridge or rubber
stop valves.
WARNING: The cartridge and rub-
ber stop valves MUST be removed
before either brazing or resistance
(electric) soldering. For stop valve
removal instructions, see last page.
TO UTILIZE THE MAXIMUM TEMPERATURE LIMIT FEATURE AVAILABLE WITH THE STYLE C LEVER MODELS,
SEE INSTRUCTIONS ON BACK PAGE.
To Remove Stop Valve
Always turn water supply OFF before disassembly. Open faucet to relieve pressure.
Removal of stop valve:
1. Remove handle assembly as shown above and escutcheon.
2. Using snap ring pliers, remove retaining ring from valve body.
3. Grip stop valve stem with pliers and rotate slightly to remove from valve body.
Re-Installation of new stop valve:
1. Check to be sure that stop valve stem is fully seated in plug.
2. Insert stop valve until fully seated beyond retaining ring groove in valve body.
3. Using snap ring pliers, place retaining ring in valve body, making sure that ring is fully seated.
4. Check orientation of stop valve for water flow. (Stop is in the off position when screwdriver slot is vertical).
5. Turn water supply on.
A
B
C
Flushing
IMPORTANT: Before closing all wall openings, pressure test valve and complete system using
flushing instructions
IMPORTANT:
Pipe chips, sand, stones, and other solids found in new or renovated plumbing can damage the sealing surface of the cartridge and cause a leak. To avoid dam-
age, DO NOT TURN ON SUPPLY VALVES until instructed below:
1. Break off the protective cap on the plaster ground at the top end of the stop tube cover (see illustration page 3). Place a flat bladed screwdriver into
one of the slots near a support tab and twist to break. Repeat at remaining tabs.
2. Use pliers to operate cartridge.
3. Open the cartridge in the full cold position (notched flat pointing to the right) and turn on the cold supply for 15 seconds. Without closing the
cartridge, turn to the full hot position (notched flat pointing to the left) and turn on the hot supply for 15 seconds.
4. Turn the cartridge to the mixed position (notched flat pointing up), divert water to the shower and run for an additional 15 seconds.
5. Close cartridge.
6. Install showerhead.
IPS SPOUT:
CAUTION: This spout is A.B.S. plastic and will crack when in contact with some pipe thread compounds.
Please read the pipe compound label to be certain. We recommend using thread seal tape thread sealant.
Screw tub spout onto pipe and tighten by hand. If final turn by wrench is needed, use small wrench with smooth
jaws; otherwise, pad wrench teeth with rag. Pull outward on spout while tightening to avoid scratching the wall.
DO NOT INSERT TOOL INTO SPOUT END TO TURN SPOUT.
Plaster Ground
TO REMOVE STOP TUBE COVER:
Place a flat bladed screwdriver into the slot at the base of the
stop tube cover near a support tab as you did when removing protective cap.
Twist the screwdriver until tab breaks. Repeat for remaining tabs.
TO REMOVE THE PLASTER GROUND:
SNAP ON STYLE
Insert a flat bladed screwdriver into the screw hole access. Push the retaining arm
towards the outside of the plaster ground until it disengages from the valve body.
Repeat for other side and remove plaster ground.
SCREW STYLE
Remove screw holding plaster ground in place. Discard plaster ground.