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Leonard TM-1520A-2P Installation Adjustment Service

Parallel systems
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INSTALLATION ADJUSTMENT SERVICE
Note: IMPORTANT! Provide serial numbers for both valves when ordering parts!!
20
10
LEONARD
0
-10
°C
°F
0
38"
LEONARD
THE RMOS TATIC
1017
ASSE
HOT
HOT
28"
TM-2020B-2P
Small valve manufactured after July 2007 starting with serial # TM26272
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.
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.
TM-1520A-2P, TM-1520A-2P-LF
TM-2020B-2P, TM2020B-2P-LF
PARALLEL SYSTEMS
INSTALLATION
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
30
R
40
50
60
LEONARD
THERMOSTATIC
ASSE
1017
1
4
"
2
COLD
1360 Elmwood Avenue, Cranston, RI 02910 USA
Phone: 401.461.1200 Fax: 401.941.5310
Email:
Web Site: http://www.leonardvalve.com
C
L
HOT
Small valve manufactured after July 2007 starting with serial # TM2039272
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.
CAUTION
info@leonardvalve.com
Bulletin G11N2
20
30
10
LEONARD
R
40
0
-10
50
60
°C
0
°F
LEONARD VALVE CO.
LEONARD VALVE CO.
CRANSTON RI USA
CRANSTON RI USA
TYP TM
TYP TM
U S. Pa ten ts 2 .97 0,
3 ,0 61 ,1 95 3 .152,760
U S. Pa te nt s 2 .9 70 ,
3, 06 1,1 9 5 3 .1 52, 7 60
AS SE
1017
1017
A SSE
28"
TM-1520A-2P
August, 2018
39"
COLD

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Summary of Contents for Leonard TM-1520A-2P

  • Page 1 5. Assemblies installed on a recirculated hot water system valves which function as a system to meet both high and low MUST be piped according to LEONARD’S REQUIRED demand for tempered water. PIPING METHOD #5 (see page 4).
  • Page 2 Minimum flows must be no less than shown (see Flow Capacities, page 12). If installed on a recirculated hot water system, make certain the valve is piped according to Leonard’s Required Piping Methods (see page 4).
  • Page 3 Minimum flows must be no less than shown (see Flow Capacities, page 12). If installed on a recirculated hot water system, make certain the valve is piped according to Leonard’s Required Piping Methods (see page 4).
  • Page 4: Setup Instructions

    1017 COLD INLET INLET 1. The Parallel Unit MUST be piped according to a Leonard Open ball valve V2R and shut ball valve V2L at the mixing Required Piping Method 5 (see page 4). valve. 2. Make sure full hot and cold supplies to this assembly are Set outlet temperature of the mixing valve LVR to the same operating.
  • Page 5 REQUIRED PIPING METHOD #5 HIGH TEMPERATURE FIXTURES SYSTEM FIXTURES BALL VALVE FOR SETUP (OPTIONAL) LEON ARD °C °F FULL RETURN LINE SIZE LEONARD LEONARD THERMOSTATIC THERMOSTATIC TEMPERED CIRCULATOR ASSE ASSE 1017 1017 AQUASTAT CHECK VALVE ISOLATION VALVE WATER OURCE HEAT...
  • Page 6 INSTRUCTIONS FOR SERVICING INSTRUCTIONS FOR SERVICING LARGER TM2020B VALVE SMALLER TM2020B VALVE M20-2C COVER SCREWS LTR SET SCREW POINTER SCREW M20-3C POINTER COVER GASKET TEMPERATURE TM20-1-12B ADJUSTING SCREW THERMOSTATIC CONTROL ASSEMBLY 1. Loosen LTR set screw. 1. Loosen LTR set set screw. 2.
  • Page 7: Repair Kits

    TM-2020B LARGE VALVE PARTS TM-15B/200 TGM-2/125 COVER THERMOSTAT GROUP 57-L TM-8 TM-25D TM-25C SNAP CAP COIL SLEEVE STOP POINTER MU-5A STUD O'RING (2) LEONARD THERMOSTATIC FRICTION TM-28A SPRING POINTER ROD TM-16 TM-29/29A TM-16 TM-16A COVER POINTER SCREW DIAL DIAL SCREWS W/WASHER...
  • Page 8 SMALL TM VALVE PARTS 03307 M 20 -1 C RF/CP 6910 D IAL PLATE C OVER L TR SET SC REW M 20 -3C C OVER 5 7-D RF GASKET 7520 G LA ND NUT P OIN TER SC REW T M28 -G2 T HER MOS TAT GROUP 7628...
  • Page 9 TM-1520A INSTRUCTIONS INSTRUCTIONS FOR SERVICING INSTRUCTIONS FOR SERVICING LARGER TM1520A VALVE SMALLER TM1520A VALVE M20-2C COVER BALL SCREWS DRIVING SOCKET LTR SET SCREW BALL POINTER POINTER SCREW FLANGE PACKING M20-3C POINTER COVER THERMOSTAT GASKET GROUP TEMPERATURE TM20-1-12B ADJUSTING SCREW THERMOSTATIC CONTROL ASSEMBLY 1.
  • Page 10 TM-15B/125 TGM-2/125 COVER THERMOSTAT GROUP 57-L TM-8 TM-25D TM-25C SNAP CAP COIL SLEEVE STOP POINTER MU-5A STUD O'RING (2) LEONARD THERMOSTATIC FRICTION TM-28A SPRING POINTER ROD TM-29/29A TM-16 POINTER SCREW COVER W/WASHER SCREWS TM-3/125 TM-16A/125 PORT SLEEVE NUT DIAL PLATE...
  • Page 11 TM1520A SMALL VALVE PARTS 03305 DIAL PLATE M20-1C(RF)(CP) 6910 COVER M20-3C LTR SET SCREW COVER 57-D(RF) GASKET GLAND NUT 7520 POINTER SCREW M20-G2 THERMOSTAT GROUP DURA-trol MU-4C MU-10B GLAND PACKING POINTER ROD NUT 7628 (2 REQ'D) M20-4B POINTER P.S. HOLDER M20-5B (2 REQ'D) M20-14B...
  • Page 12 Leonard’s instructions, for a period of one year from the date of shipment. During this period, Leonard 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.

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