Install Instructions
Bulletin G-11E
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
HIGH-LOW MANIFOLD
TM-2020B, TM-2020B-LF
IMPORTANT! Provide serial numbers for both valves when ordering parts!!
Small valve manufactured after July 2007 starting with serial # TM26272
INSTALLATION
1. Type TM manifold 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. If this assembly is installed on a recirculated hot water
system it MUST be piped according to LEONARD’S
REQUIRED PIPING METHODS (see pages 4 & 5).
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.
1
4
0
0
1
0
0
1
2
0
10
4
0
-10
2
0
0
50
°C
°F
60
40
20
6
0
8
0
30
C
H
C
H
1
4
0
0
1
0
0
1
2
0
10
4
0
-10
2
0
0
50
°C
°F
60
40
20
6
0
8
0
30
LEONARD
THERMOSTATIC
ASSE
1017
DOMESTIC OUTLET
LEONARD
DOMESTIC OUTLET
HOT INLET
HOT INLET
COLD INLET
COLD INLET
ASSE
1017
LEONARD
LEONARD
THERMOSTATIC
!
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