Leonard TM-850, TM-650, TM-800-LF, TM-800, TM-5125-LF User Manual

Bulletin G-4

EMERGENCY VALVE

THERMOSTATIC

LEONARD

INLET

HOT

C

°C
°F

INLET

COLD

H

OUTLET

MIXING VALVE

MIXING VALVE

PRIMARY THERMOSTATIC

OUTLET

INLET

HOT

THERMOSTATIC

REDUNDANT

INLET

COLD

LEONARD

THERMOSTATIC

EMERGENCY VALVE

C

H

°C
°F

January, 2015

INSTALLATION SET UP AND OPERATING INSTRUCTIONS

THERMOST ATIC WATER MIXING VALVE SYSTEMS

TYPE TM-600, TM-600-LF, TM-650, TM-800, TM-800-LF, TM-850, TM-850-LF

TM-5100, TM-5100-LF, TM-5125, TM-5125-LF

IMPORTANT! Provide valve serial number, (stamped on valve cover) when ordering parts!!

TM-600, TM-600-LF, TM-800, TM-

800-LF, TM-5100, TM-5100-LF

Valve should be installed at a location where it can
easily be cleaned, adjusted or repaired.

The inlets are clearly marked on the valve body
casting. Connect the hot water into the inlet marked
"HOT" and cold water into the inlet marked "COLD."
These are NOT to be confused with the "C-H"
markings on the front cover.

INSTALLATION

Union angle strainer checkstops furnished must be
installed on both supply lines as shown above.

Use solder or pipe cement sparingly. Supply pipes
should be flushed before the valve is connected. Flush
outlet pipe and valve as soon as it is connected.

Maximum Operating Pressure 125PSI (860 KPA)

TM-650, TM-850, TM-850-LF

TM-5125, TM-5125-LF

for Hot and Cold Water.

NOTE: It may be necessary to recirculate the tempered water to the face/eyewash/drench shower should the
piping be exposed to excessive hot or cold conditions. Consult factory for proper piping.

CAUTION

IMPORTANT! These systems are designed to provide mixed water from 60 to 90°F (15 to
32°C) for emergency shower applications only. Call Leonard for systems designed to
operate at temperatures outside of this range.

REMEMBER! THIS IS A CONTROL SYSTEM WHICH MUST BE CLEANED AND MAINTAINED ON A
REGULAR BASIS (SEE MAINTENANCE GUIDE AND RECORD MGR-1000).

1360 Elmwood Avenue, Cranston, RI 02910 USA

Phone: [phone] Fax: [phone]

Email: [e-mail]

Web Site: http://www.leonardvalve.com

ADJUSTMENT AND SER VICE

Leonard Type TM Thermostatic Water Mixing Valves are simple in
design and may be easily cleaned, adjusted and repaired. If the
installation is accessible, servicing may be completed without
disconnecting the valve.

TO RESET ADJUSTABLE HIGH TEMPERATURE

LIMIT STOP:

POINTER

1. Loosen LTR set screw.

2. Remove SNAP CAP, SCREW & WASHER. Remove
POINTER.

3. Temporarily place POINTER on the spline rod, turn
HANDLE to the left, allow cold water to flow. Slowly
adjust handle to the right to required maximum
temperature. (Temperatures above 90ºF are not
recommended on Emergency equipment, consult
medical advisor for correct temperature settings).

4. Replace POINTER on the spline rod so that its RIGHT
edge is resting against the STOP SCREW located on
the RIGHT SIDE OF THE COVER.

5. The new maximum temperature has now been set. Test
this temperature by holding a thermometer

flow of water to be certain it is as desired.

C

SNAP

LEONARD

THERMOSTATIC

CAP

H

STOP

SCREW

LTR

SET SCREW

under the

NOTE: Thermostatic Water Mixing Valves are REGULATING
mechanisms, which must be regularly maintained to provide best
performance. Frequency of cleaning depends on quality of local water
conditions and usage. (See Maintenance Guide and Record MGR­1000 and ANSI 358.1).

WARNING

WARNING! This Thermostatic Mixing Valve has an adjustable

high temperature limit stop which must be checked. If temperature is
too high, the installer MUST RESET stop immediately. Always
check the temperature of the mixed water when the lever handle is
turned to full HOT. If the Emergency Drench equipment is a
combination type, the water temperature must be checked at each
outlet (FACE/EYEWASH /SHOWER) location independently,
Excessively hot water is DANGEROUS AND MAY CAUSE

SCALDING!

Consult medical advisor for correct temperature
setting.

The high temperature limit stop is factory set at approximately 90°F
(32.2°C) with an incoming hot water supply temperature of 150°F
(65°C). If the incoming hot water on the job is higher than 150°F, the
valve when turned to full hot will deliver water in excess of 90°F and
the high temperature limit stop MUST BE RESET BY THE

INSTALLER.

TROUBLESHOOTING INSTRUCTIONS

PACKINGS &
GASKETS

PORT SLEEVE
ASSEMBLY

THERMOSTAT
GROUP

CHECKSTOPS

If installed on a circulated hot water system, make certain the valve is piped according to Leonard Required Methods of Piping (see page 3).

REMEMBER! THIS IS A CONTROL DEVICE WHICH MUST BE CLEANED AND MAINTAINED ON A REGULAR BASIS. (SEE MAINTENANCE
GUIDE AND RECORD, MGR-1000).

Leak at po inter rod.
Leak between valve cover and base

Valve delivers eith er all hot or all cold water, or
will not mix consiste ntly.

After cleaning or replacing port sleeve
assembly, valve will not hold t e m perature.

Hot water bypass into cold line.
Supplies canno t be shut o ff comple te ly.
Leak at che c ks to p bonnet.

SEE PAGE 5 FOR COMPLETE PARTS BREAKDOWN, AND PARTS KITS

TM-600, 650, 800, 850

REPAIR KIT 1/50M

REPAIR KIT T GM -1/50M or
REPAIR KIT R/50M

REPAIR KIT T GM -2/50 or
REPAIR KIT R/50M

REPAIR KIT 2/50M

TM-5100, 5125

REPAIR KIT 1/125M

REPAIR KIT T GM -1/125M or
REPAIR KIT R/125M

REPAIR KIT T GM -2/125 or
REPAIR KIT R/125M

REPAIR KIT 2/50M

2

REQUIRED METHOD OF PIPING TM VALVES

PRIMARY THERMOSTATIC

OUTLET

F

C

INLET

HOT

MIXING VALVE

LEONARD

C

H

THERMOSTATIC

MIXING VALVE

COLD
INLET

REDUNDANT

HOT SUPPLY

COLD SUPPLY

TO HOT WATER SOUR CE

SWING CHECK

ADJUSTMENT

SCREW

INLET

COLD

HOT

INLET

COLD SUPPLY

HOT SUPPLY

TO HOT WATER SOURCE

EMERGENCY VALVE

THERMOSTATIC

LEONARD

C

°C
°F

H

OUTLET

METHOD #1

Required when hot water is to be circulated to a thermostatic mixing valve, which is a substantial distance from
the hot water source. Recommended Hot Water Inlet Temperature 140ºF (60ºC).

TM-650, 850, 5125

The TM-650, 850 & 5125 Redundant Thermostatic Mixing
Valve has been factory set at 90°F (32°C). This set point can be
field adjusted with a 3/8” wrench (see diagram). ”Clockwise”
direction will increase temperature. Maximum set point is 100°F
(38°C). Consult medical advisor for correct temperature setting.
As a secondary level of protection, in the event of redundant
valve failure, installing contractor may wish to prevent cold
water contamination by installing a swing check valve on the
cold water supply to the valve (only needed on TM-650, 850,
and 5125).

This unit must be cycled each time the emergency equipment is check ed. (See ANS I Z358.1,

Maintenance and Training section).

Cycle redundant thermostatic valve by loosening the
pointer set screw and set the primary thermostatic
mixing valve to full hot. (TM-650, TM-850, TM-5125
only).

Open drench or combination emergency shower and
allow temperature to reach the set point. Temperature
will drop when secondary valve opens to cool output.

Turn primary thermostatic valve to full cold and wait
ten seconds, this will close secondary valve.

TM-600, 800, 5100

Turn primary thermostatic valve to full hot and wait
for ten seconds.

Check to be sure outlet temperature does not climb
above 90°F (32°C) or above recommended maximum
temperature set by medical advisor.

Turn primary thermostatic mixing valve to full cold
and wait ten seconds.

Set primary thermostatic mixing valve to the desired
temperature and close drench or combination
emergency shower.

3

LTR

PACKING

SLEEVE

PORT

2.

NUT

PORT
SLEEVE
NUT

THIMBLE

CHECK

DRIVING

BALL

STUD

COIL SLEEVE

POINTER

ROD WITH

GEAR

1.

POINTER

FLANGE

SOCKET

BALL

ALWAYS TO RIGHT

ELONGATED HOLES

SET SCREW

INSTRUCTIONS FOR DISMANTLING VALVE

Shut off hot and cold supplies to valve.
Loosen POINTER SET SCREW, Remove SNAP CAP, SCREW and

WASHER, POINTER and FRICTION SPRING. (FIGURE #1).
Remove the 6 COVER SCREWS, then take off cover to which the

Thermostat and Gears are attached.
WHEN RE-ASSEMBLING VALVE, insert new Flange Packing in

base; replace COVER, tightening COVER SCREWS in rotation; put
FRICTION SPRING in place; then replace POINTER and POINTER
ROD SCREW, WASHER and CAP.

After installing new parts, it will probably be necessary to reset Pointer
to obtain correct temperature range from Cold to Hot. See page 2
instructions "TO RESET ADJUSTABLE HIGH TEMPERATURE
LIMIT STOP."

TO CLEAN PORT SLEEVE ASSEMBLY

Failure to properly blend the water may be caused by a sticking
condition in the PORT SLEEVE ASSEMBLY. The THIMBLE should
slide freely on the PORT SLEEVE.

If a deposit of lime or sediment prevents free movement, use a nail set
or other tapered tool to unscrew the CHECK NUT as far as it will go,
then screw the PORT SLEEVE NUT into the base. This will release the
PORT SLEEVE and THIMBLE so they can be lifted out, (Figure #2).

Clean with a NON-CORROSIVE CLEANING AGENT AND SOFT
CLOTH - DO NOT USE ABRASIVES - then wash parts thoroughly,
wipe with a dry cloth and re-assemble. The PORT SLEEVE should be
assembled with the elongated holes to the right (COLD SIDE). Tighten
PORT SLEEVE NUT against end of PORT SLEEVE but be careful not
to over tighten, this may deform port sleeve. Tighten CHECK NUT.

When replacing front be sure DRIVING BALL is inserted in Ball
Socket as shown in Figure #1.

TO REPLACE POINTER ROD WITH GEAR

Loosen POINTER SET SCREW, remove POINTER ROD SNAP CAP,
SCREW, WASHER, POINTER, and FRICTION SPRING. (FIGURE
#1)

Remove COVER with parts attached, from the front of valve.
Remove COIL SLEEVE STUD and take off THERMOSTAT GROUP.
Replace POINTER ROD with GEAR and re-assemble.

TO REPLACE (OR CLEAN) THERMOSTAT
GROUP

Follow instruction for replacing POINTER ROD with GEAR above. If
a deposit has collected on the Thermostatic Coil, clean it off with a
brush in a non-corrosive grit-free cleaning solution.

REMEMBER! THIS IS A CONTROL DEVICE WHICH MUST BE CLEANED AND
MAINTAINED ON A REGULAR BASIS. (SEE MAINTENANCE GUIDE AND RECORD,
MGR-1000)

4

FOR TM-600, TM-650, TM-800, TM-850

TM-25C

POINTER

TM-29/29A

W/WASHER

POINTER SCREW

SNAP CAP

57-L

TM-3/50M

PORT SLEEVE NUT

STUD

TM-16

SCREWS

COVER

TM-21/50

FLANGE PACKING

30
FRICTION
SPRING

TM-28A

POINTER ROD

PORT SLEEVE

TGM-1/50M

ASSY

ASSY

O'RING

C

TGM-2/50
THERMOSTAT GROUP

TM-15B/50

COVER

TM-25D

STOP

COIL SLEEVE

TM-8

MU-5A

PLATE

DIAL

TM-16A/50M

LEONARD

THERMOSTATIC

H

(2 REQD.)

LOWER STEM & PACKING

BODY

CAP PACKING

09/50

SWIVEL NUT

04/50

SWIVEL

06

STRAINER CAP

014

SCREEN

SPRING BLUE (COLD SIDE)

015

O'RING
013

MU-5A

SPRING (HOT SIDE)

011

03

MU-4A

UPPER STEM

02

BONNET

PACKING

05

TM-600, 650, 800, 850 VALVE PARTS

CHECKSTOP PARTS

LOCK-TYPE POINTER (SUFFIX LTR)

All TM-600, 650, 800 &
850, valves are furnished
with lockable pointers. See
part noted.

REMEMBER! THIS IS A CONTROL DEVICE WHICH
MUST BE CLEANED AND MAINTAINED ON A
REGULAR BASIS (SEE MAINTENANCE GUIDE AND
RECORD, MGR-1000)

NOTE: AFTER INSTALLING NEW PARTS IT WILL
BE NECESSARY TO RESET THE ADJUSTABLE
HIGH TEMPERATURE LIMIT STOP (SEE PAGE 2).

TM-36
POINTER SET SCREW

5

REPAIR KITS

FOR TM-600, 650, TM-800 & 850

KIT 1/50M PACKINGS & GASKETS

PKG.

POINTER ROD

SCREEN (2)

CAP PACKING (2)

SCREEN (2)

CAP PACKING (2)

THERMOSTAT

GROUP

BONNET PKG.(2)

FLANGE

PKG.

BONNET PKG. (2)

O'RING (4)

FLANGE

SPRING

(HOT & COLD)

LOWER STEM
& PACKING (2)

(1) (1 BLUE)

KIT R/50M REBUILDING KIT

PORT SLEEVE

COIL SLEEVE

STUD

NUT ASSY.

POINTER ROD

O'RING (2)

PORT SLEEVE

ASSY.

KIT 2/50M CHECKSTOP KIT

UPPER

STEM O'RING (2)

LOWER STEM

& PACKING (2)

SPRING
(HOT & COLD)
(1)

(1 BLUE)

TM-5100, 5125 VALVE PARTS

LOWER STEM & PACKING

BODY

CAP PACKING

09/125

SWIVEL NUT

04/125
SWIVEL

06

STRAINER CAP

014

SCREEN

SPRING BLUE (COLD SIDE)

015

O'RING
013

MU-5A

SPRING (HOT SIDE)

011

03

MU-4A

UPPER STEM

02

BONNET

PACKING

05

POINTER SET SCREW

TM-36

FOR TM-5100, TM-5125

TM-25C

POINTER

TM-29/29A

W/WASHER

POINTER SCREW

SNAP CAP

57-L

TM-3/125M

PORT SLEEVE NUT

STUD

TM-16

SCREWS

COVER

TM-21/125

FLANGE PACKING

30
FRICTION
SPRING

TM-28A

POINTER ROD

PORT SLEEVE

TGM-1/125M

ASSY

ASSY

O'RING

C

TGM-2/125
THERMOSTAT GROUP

TM-15B/125

COVER

TM-25D

STOP

COIL SLEEVE

TM-8

MU-5A

PLATE

DIAL

TM-16A/125M

LEONARD

THERMOSTATIC

H

(2 REQD.)

CHECKSTOP PARTS

REPAIR KITS

FOR TM-5100, TM-5125

KIT 1/125M PACKINGS & GASKETS

LOCK-TYPE POINTER (SUFFIX LTR)

All TM-5100, 5125 valves
are furnished with lockable
pointers. See part noted.

REMEMBER! THIS IS A CONTROL DEVICE WHICH
MUST BE CLEANED AND MAINTAINED ON A
REGULAR BASIS (SEE MAINTENANCE GUIDE AND
RECORD, MGR-1000)

NOTE: AFTER INSTALLING NEW PARTS IT WILL
BE NECESSARY TO RESET THE ADJUSTABLE
HIGH TEMPERATURE LIMIT STOP (SEE PAGE 2).

6

O'RING (4)

FLANGE

PKG.

SPRING

(HOT & COLD)

LOWER STEM

& PACKING (2)

(1) (1 BLUE)

KIT R/125M REBUILDING KIT

PORT SLEEVE

NUT ASSY.

COIL SLEEVE

STUD

POINTER ROD

O'RING (2)

PORT SLEEVE

ASSY.

POINTER ROD

KIT 2/50M CHECKSTOP KIT

UPPER

STEM O'RING (2)

LOWER STEM

& PACKING (2)

(HOT & COLD)
(1)

SPRING

(1 BLUE)

SCREEN (2)

BONNET PKG.(2)

CAP PACKING (2)

THERMOSTAT

GROUP

SCREEN (2)

CAP PACKING (2)

BONNET PKG. (2)

FLANGE

PKG.

FLOW CAPACITIES

*TM-850

*TM-800

TM-5125

TM-5100

*TM-600

TM-650

212

56

231

61

231

61

117
443

443

117

2.8

40

56

212

1 1/2"1 1/4"

11

3

151

40

MAXIMUM FLOW CAPACITY

307

81

242

64

201

53

273

72

374

99

341

90

409

108

BY-PASS
MINIMUM

INTERNAL

COLD WATER

7611

1 1/4"

1 1/4"

1 1/2"1 1/4"

1 1/4"

1"

3

11

11

40

151

76

3

11

3

20

76

20

OUT

3/4"

3/4"

MODEL

IN

203

1"

3

1"

11

20

76

(GPM)

FLOW

MINIMUM

L\MIN

193

1701511291108768

167

44

167

44

307

81

110

242

6453

201

79

72

273

143

29

110

29

21

79

21

38

143

38

201

374

99

341

90

189

108
409

212

201189

50 53

50 53

56

212

56

34

1.4

20

SYSTEM PRESSURE DROP

34

129

2918 23

23

87

18

68

29

110

.7

10

5

.3

15

1.0
4540

51

170

40 45

151

51

193

3025

1.7 2.1352.4

L\MIN

477

126

GPM

L\MIN

220

L\MIN

GPM

L\MIN

126
477

242

GPM

L\MIN

GPM

64

242

64

58

GPM

GPM

L\MIN

58

220

BAR

PSI

45

3.1

55
50

TM-600
TM-650

TM-800

TM-850

TM-5100
TM-5125

40

30

20

PRESSURE DROP P.S.I.G.

10

0

2

3

764 5 108 20 4030 150806050 70 100 200

MAXIMUM FLOW CAPACITY GALLONS PER MINUTE

Leonard Valve Company warrants the original purchaser that products manufactured by them (not by others) will be free from defects in materials
and workmanship under normal conditions of use, when properly installed and maintained in accordance with Leonard Valve Company's
instructions, for a period of one year from date of shipment. During this period the Leonard Valve Company will at its option repair or replace any
product, or part thereof, which shall be returned, freight prepaid, to the Leonard factory and determined by Leonard to be defective in materials or
workmanship. There are no warranties, express or implied, which extend beyond the description contained herein. There are no implied warranties
of merchantability or of fitness for a particular purpose. In no event will Leonard be liable for labor or incidental or consequential damages. Any
alteration or improper installation or use of the product will void this limited warranty.

© 2015 Leonard Valve Company
Printed in USA

1360 Elmwood Avenue, Cranston, RI 02910 USA

Phone: [phone] Fax: [phone]

Web Site: http://www.leonardvalve.com

LIMITED WARRANTY

Email: [e-mail]

7