PROPORTIONAL THERMOSTATIC MIXING AND DIVERTING
VALVE STANDARD AND “C” TEMPERATURE RANGE MODELS NPT, UNION SWEAT, THREAD, CPVC AND PEX MODELS
INSTALLATION INSTRUCTIONS
Patent Information: U.S. Patent No. 6,079,625.
INSTALLATION
APPLICATION
The AM-1 Series™ family of quality valves in a variety of
temperature ranges and connections, for master mixing or
diverting applications.
SPECIFICATIONS
Temperature Range:
C Model: 70°F–120°F (21°C–49°C)
Standard Model: 70°F–145°F (21°C–63°C)
Connections:
Straight-through design (HOT and COLD at same level).
Construction:
Nickel plated brass construction. EPDM o-rings. Made in
USA.
Lead Free Plumbing Code Compliance: The wettable sur-
faces of lead free models contain less than .25% of lead by
weighted average
Operating Pressure: 150 psi (1034 kPa) maximum.
IMPORTANT
NOTE TO INSTALLER:
qualified individual, in accordance with local codes and
ordinances. It is the responsibility of the installer to properly
select, install and adjust these devices as specified in these
instructions. For installations which require compliance with
Building/Mechanical/Plumbing Codes, the appropriate AM-1
Series™ valve must be chosen and installed, and the
discharge temperature set and locked according to these
instructions. AM-1 “C” Series models with the temperature
range, 70°F–120°F (21°C–49°C) and "Standard" models with
temperature range 70°F–145°F (21°C–63°C) are ASSE
1017 (point of source application) certified, and CSA
IAPMO
tubs, showers, bathing facilities and other outlets. These
valves should be installed where they will be accessible for
cleaning, servicing or adjustment.
Mounting must comply with all local codes.
This product should be installed by a
®
®a
®
listed. These models shall be used to supply water to
and
ASSE 1017 Applications—Point of
Source
These AM-1 Series models can be installed in any position
consistent with the intended use. For domestic hot water
supply, the valve must be installed as shown in Fig. 1. There
shall be no shut-off valves installed between the cold water
line and the cold water connection on the AM-1 Series valve.
Check valves shall be installed as indicated for NPT models;
all AM-1 models with union fittings are supplied with integral
check valves on both the hot and cold ports. A cold water
service valve may be installed, as indicated, between the cold
water supply line to the distribution system and the cold water
line supplying both the water heater and the AM-1 Series
valve.
Operating Temperature: 212 °F (100 °C) maximum.
a
-UCPVC and -UPEX models are not CSA listed.
®
CUS
62-3075EFS-03
AM-1 SERIES™
WARNING
M25029A
(1)
T
(1)
HEAT
TRAP
6
(152)
8
(203)
MAX
WATER
HEATER
EXPANSION
TANK
ALLOWABLE
SERVICE
VALVE
LOCATION
AM SERIES
WATER USE FIXTURES
RECIRCULATION
PUMP
M
COLD
WATER
SUPPLY
C
V
H
TO DISHWASHER
IF PERMITTED
BY CODES
T
AQUASTAT
(1)
CHECK VALVE
L
1
4
Fig. 1. AM-1 Series ASSE 1017 application
Installation of Union Sweat, CPVC
and PEX Connections
— Union sweat connections, if used, should be soldered
prior to assembly to the valve, or without the sealing
gasket or optional check valve present. After the joint
has cooled, the sealing gasket and/or check valves
may be installed.
— CPVC fittings are limited to a system maximum tem-
perature of 180° F (82° C) and 100 psi (689 kPa).
— PEX fitting and crimp ring (provided by Installer) are
deigned to meet ASTM F1807 requirements.
— PEX tubing used with PEX fittings must meet ASTM
F876 requirements.
VALVE ADJUSTMENT
To adjust temperature setting of the mixing valve, attach
thermostrip (supplied with the valve) to the piping connected
to the Mix port of the valve. Loosen handwheel screw, lift
handwheel and turn to desired temperature as indicated on
the thermostrip. Reposition the hand wheel and retighten
screw.
2
c
1
LOOSEN SCREW, LIFT HAND WHEEL.
TURN HAND WHEEL CLOCKWISE
2
OR COUNTER CLOCKWISE TO
ADJUST TEMPERATURE.
2
33
H
c
REPOSITION HAND WHEE
3
TO LOCK POSITION.
4
RETIGHTEN SCREW.
H
M27487
Thermostrip Installation
Clean pipe and firmly apply Thermostrip on mix outlet of
valve. Flow water and adjust mixed outlet temperature for
desired setting range. Actual mixed water temperature is
indicated in green with 2° F (1° C) increments. Blue means
slightly lower and brown means slightly higher.
Water Temperature above 120°F (49° C) can cause
serious injury. Mixing valve temperature setting
should be done by licensed contractor per local
code requirement. To ensure correct temperature
control, use water thermometer at faucet outlet.
The thermostrip is ONE TIME USE ONLY for initial system
temperature setting. Check expiration date printed on
temperature strip to ensure temperature reading accuracy. If
necessary, contact your Honeywell distributor to obtain a
replacement thermostrip, part number TS205-064.
Temperature Setting Procedure
It is possible to limit the temperature range. To use this
feature:
62-3075EFS—032
Fig. 2. Thermostrip.
Post Installation Procedure
1. Write temperature setting on CAUTION label and sign in
space provided.
2. Attach CAUTION label to AM-1 valve.
3. Explain CAUTION label to owner.
4. Deposit this instruction sheet with owner.
OPERATION
The AM-1 series valve provides for automatic operation
through the use of a thermostatic element in the product. The
element will control the mixing of the hot and cold supply to
provide mixed tempered water to connected fixtures. This
provides constant water temperature under different working
conditions.
MAINTENANCE PROCEDURES
AM-1 SERIES™
Table 1. AM-1 Series Replacement Kits
ModelTemperature RangePart No.
C70°–120° F (21°–49°C)AM-1-020 RP
STD70°–145° F (21°–63° C)AM-1-025 RP
Hard water conditions may result in scale deposits, causing
binding of internal parts in extreme cases. Cleaning the
internal parts will usually restore the valve to proper operating
conditions. In some cases, it may be necessary to replace the
lower assembly.
To clean and/or replace the lower assembly, shut off water
and:
1. With a screwdriver, remove screw and handwheel.
2. Loosen upper nut (do not remove) to allow engaging an
adjustable wrench on lower nut. Unscrew lower nut
(counterclockwise). This removes top assembly.
3. Brass top assembly will pop up. Remove lower assem-
bly, diffuser and spring.
4. Carefully remove any scaling (calcium deposit) or for-
eign particles from valve seat and other internal parts.
Use vinegar to remove calcium. Soak parts until calcium
becomes soft and can be scrubbed and washed off. Do
not use solvents or scratch metallic / Teflon® coated surfaces.
5. Replace cleaned spring, diffuser and lower assembly
following instructions below or use new replacement kit
assembly. For correct kit number, see Table 1.
Install spring, diffuser and lower assembly:
A. Insert spring onto diffuser.
B. Insert diffuser with spring end first into body.
C. Fit valve top assembly into lower assembly and insert into valve.
D. Tighten lower nut.
E. Reposition handwheel and insert screw. Turn handwheel to
desired temperature setting.
A
Ø 1-51/64
(46)
2-1/4
(57)
H
B
MIX
C
Fig. 4. Dimensions in in. (mm).
C
M23938
HANDWHEEL
UPPER NUT
LOWER NUT
O RING
H
H
MIX
RETAINING RING
TOP ASSEMBLY
LOWER ASSEMBLY
DIFFUSER
SPRING
C
VALVE BODY
M23941
Fig. 3. AM-1 Series valves assembly.
362-3075EFS—03
AM-1 SERIES™
AM-1 Series™ is a trademark of Honeywell International, Inc.
ASSE® is a registered trademark of the American Society of Sanitary Engineering.
®
CSA
is a registered trademark of the Canadian Standards Association.
®
IAPMO
is a registered trademark of the International Association of Plumbing and Mechanical Officials.
ASTM® is a registered trademark of the American Society for Testing and Materials.
®
Tefl on
is a registered trademark of E.I. du Pont de Nemours and Company.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422