Bulletin G10N1
January 2007
INSTALLATION ADJUSTMENT SERVICE
TM-1520A-DT, TM-2020A-DT PARALLEL SYSTEMS
Note: Each individual valve assembly is ASSE 1017 listed.
IMPORTANT! Provide serial numbers for both valves when ordering parts!!
INSTALLATION
LEONARD VALVE CO.
CRANSTON RI USA
U S. Pa ten ts 2 .97 0, 3 ,0 61 ,1 95 3 .152,760
TYP TM
20
4
0
°F
0
140
30
10
0
20
60
LEONARD
-10
°C
0
10
50
12
0
40
R
60
80
LEONARD VALVE CO.
CRANSTON RI USA
U S. Pa te nt s 2 .9 70 , 3, 06 1,1 9 5 3 .1 52,760
TYP TM
28"
39"
HOT
COLD
H
C
ASSE
1 017
LEONARD
THERMOSTATIC
3"
33 1/2"
43"
HOT
COLD
10
- 10
20
0
40
140
°F
0
60
°C
50
LEONARD
20
40
R
30
12
0
10
0
60
80
L
C
THERMOSTATIC
LEONARD
H
C
1 017
ASSE
TM-2020A-DT
TM-1520A-DT
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.
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.
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 12. Minimum
flow must be no less than as shown.
1360 Elmwood Avenue, Cranston, RI 02910 USA
Phone: 401.461.1200 Fax: 401.941.5310
Email:
Web Site: http://www.leonardvalve.com
