Bulletin G-11N3
August, 2018
1360 Elmwood Avenue, Cranston, RI 02910 USA
Phone: 401.461.1200 Fax: 401.941.5310
Email: info@leonardvalve.com
Web Site: http://www.leonardvalve.com
INSTALLATION ADJUSTMENT SERVICE
TM-2020B-3PS, TM2020B-3PS-LF
PARALLEL SYSTEMS
IMPORTANT! Provide serial numbers for both valves when ordering parts!!
Small valve manufactured after July 2007 starting with serial # TM26272
INSTALLATION
1. Type TM Parallel Systems are factory pre-assembled and
tested and include large and small thermostatic water
mixing valves which function as a system to meet both
high and low demand for tempered water.
2. System should be installed at a location where it can
easily be cleaned, adjusted or repaired.
3. System supplies must be connected as shown (Hot-left,
Cold-right). Exercise caution when soldering.
4. Flush pipes thoroughly after system has been
connected.
5. Assemblies installed on a recirculated hot water system
MUST be piped according to LEONARD’S
REQUIRED PIPING METHOD #5 (see page 4).
6. Refer to page 3 of this bulletin for correct Setup
Instructions.
Maximum Operating Pressure 125PSI (860 KPA) for Hot and Cold Water.
CAUTION
All thermostatic water-mixing valves have limitations. They will not provide the desired
accuracy outside of their flow capacity range. Consult the capacity chart on page 8. Minimum
flow must be no less than as shown.
TM-2020B-3P
0
2
0
4
0
50
60
°C
1
2
0
-10
1
4
0
°F
0
20
8
0
30
6
0
40
R
LEONARD
10
1
0
0
49
1
2
"
LEONARD
THERMOSTATIC
C
H
ASSE
1017
LEONARD
THERMOSTATIC
C
H
ASSE
1017
LEONARD
THERMOSTATIC
C
H
ASSE
1017
47"
WARNING: This product can expose you to
chemicals including lead, which is known to the State
of California to cause cancer. For more information, go
to www.P65Warnings.Ca.gov
!
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