Leonard TM-186-30015050-PRV Installation Adjustment Service

High capacity manifold system

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INSTALLATION ADJUSTMENT SERVICE
HIGH CAPACITY MANIFOLD SYSTEM
IMPORTANT! Provide valve serial numbers (stamped on cover of valves) when ordering parts!!
HOT
INLET
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.
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 9. Minimum flow must be no less than as shown.
REMEMBER! THIS IS A CONTROL SYSTEM WHICH MUST BE CLEANED AND MAINTAINED ON A
REGULAR BASIS (SEE MAINTENANCE GUIDE AND RECORD MGR-1000).
TM-186-30015050-PRV
64"
INSTALLATION
Maximum Operating Pressure 125 PSI (8.6 BAR)
CAUTION
1360 Elmwood Avenue, Cranston, RI 02910 USA
Phone: 401.461.1200 Fax: 401.941.5310
info@leonardvalve.com
Email:
Web Site: http://www.leonardvalve.com
OUTLET
!
CIRCULATION
CONNECTION
56"
APPROX.
COLD
INLET
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 a REQUIRED PIPING METHOD (see
page 4).
6. Refer to page 3 of this bulletin for correct Setup
Instructions.
Bulletin G19Z
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
April, 2020

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Summary of Contents for Leonard TM-186-30015050-PRV

  • Page 1 Bulletin G19Z April, 2020 INSTALLATION ADJUSTMENT SERVICE HIGH CAPACITY MANIFOLD SYSTEM TM-186-30015050-PRV IMPORTANT! Provide valve serial numbers (stamped on cover of valves) when ordering parts!! OUTLET WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer.
  • Page 2 ADJUSTMENT AND SERVICE Leonard Type TM Thermostatic Water Mixing NOTE: High Low Manifold Systems include Valves are simple in design and may be easily Thermostatic Water Mixing Valves, which must be cleaned, adjusted and repaired. If the installation is regularly maintained to provide best performance.
  • Page 3: Setup Instructions

    SETUP INSTRUCTIONS BLEED HERE TM-50 TM-300 TM-150 1. TM-186-30015050PRV High-Low Unit Must be 9. Carefully adjust screw S2 on the reducing pilot fully counter-clockwise (CCW) until all spring piped in accordance with appropriate Piping Method shown on page 5. tension is relieved. Open V2 and close outlet V3 (V1 should remain closed) (no water will flow at this time).
  • Page 4: Troubleshooting

    PRESSURE REDUCING VALVE PARTS LIST A In line, Filter 2 Control Orifice 3 Pressure Reducing Pilot S Opening Speed Control TROUBLESHOOTING SYMPTOM CAUSE REMEDY Insufficient inlet pressure Check/create inlet pressure Valve fails to open No downstream demand Create demand/flow Insufficient spring compression on pressure Turn adjusting screw on pressure reducing pilot reducing pilot 3 clockwise...
  • Page 5 4. IF UNABLE TO REACH DESIRED TEMPERATURE WITH VALVE #1 IN THE FULL OPEN POSITION, OPEN BALANCE VALVE #2 IN SMALL INCREMENTS (i.e. 1/8, ¼, 3/8, ETC) UNTIL DESIRED TEMPERATURE IS ACHIEVED. CONTACT LEONARD FOR ADDITIONAL PIPING METHODS DESIGNED FOR HIGHER FLOW RECIRCULATED SYSTEMS AND FOR OTHER SPECIAL INSTALLATIONS.
  • Page 6: Troubleshooting Instructions

    INSTRUCTIONS FOR SERVICING INSTRUCTIONS FOR SERVICING LARGER TM VALVE SMALLER TM VALVES BALL DRIVING DRIVING SOCKET BALL BALL BALL SOCKET POINTER FLANGE PACKING FLANGE PACKING THERMOSTAT GROUP LTR SCREW 1. Remove pointer rod nut, friction spring and pointer. Shut 1. Loosen LTR screw. off hot and cold supplies to this valve.
  • Page 7: Repair Kits

    LARGE TM VALVE PARTS POINTER ROD (15/300) COVER NUT (29) POINTER LOCK SCREW (26/300) THERMOSTAT GROUP POINTER (25/300 for TM-300) (TG-2/300) PACKING GLAND COIL SLEEVE RING (22) STUD (8/300) POINTER ROD WITH GEAR PACKING GLAND (TG-4/300) GLAND PACKING NUT (23) FRICTION (24) SPRING (30)
  • Page 8 TM-15B/125 (TM-150) TGM-2/125 (TM-150) 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 COVER TM-16A/50 (TM-50) POINTER SCREW SCREWS TM-16A/125 (TM-150) W/WASHER DIAL PLATE...
  • Page 9 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.

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