2 4 1 11 7 6 8 2 3 4 5-1 6 F 14 TERMOSTATI 1 12 2 ASSE 117 6 4 1 8 2 3 4 5-1 6 F 14 TERMOSTATI 1 12 Bulletin G-11E June 29 INSTALLATION ADJUSTMENT SERVIE IG-LOW MANIFOLD TM-22B Valve assembly is ASSE 117 listed Valve assembly is UP listed IMPORTANT! Provide serial numbers for both valves when ordering parts!! Small valve manufactured after July 27 starting with serial # TM26272 INSTALLATION DOMESTI OUTLET DOMESTI OUTLET OT INLET OLD INLET OT INLET OLD 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 (ot-left, old-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 S REQUIRED PIPING METODS (see pages 4 & 5). 6. Refer to page 3 of this bulletin for correct Setup Instructions. Maximum Operating Pressure 125PSI (86 KPA) for ot and old Water. AUTION All thermostatic water-mixing valves have limitations. They will not provide the desired accuracy outside of their flow capacity range. onsult the capacity chart on page 8. Minimum flow must be no less than as shown. 136 Elmwood Avenue, ranston, RI 291 USA Phone: 41.461.12 Fax: 41.941.531 Email: info@leonardvalve.com Web Site: http://www.leonardvalve.com
117 ASSE ADJUSTMENT AND SERVIE Leonard Type TM Thermostatic Water Mixing Valves are simple in design and may be easily cleaned, adjusted and repaired. If the installation is accessible, servicing may be completed without disconnecting the valves. NOTE: igh Low Manifold Systems include Thermostatic Water Mixing Valves, which must be regularly maintained to provide best performance. Frequency of cleaning depends on quality of local water conditions and usage. See Maintenance Guide and Record MGR-1 WARNING These mixing valves are equipped with an adjustable high temperature limit stop factory set at approximately 12 F (49 ) with an incoming hot water supply temperature of 15 F (65.5 ). If the hot water supply temperature of the job is greater than 15 F (65.5 ), the valves when turned to full OT will deliver water in excess of 12 F (49 ) and the limit stop MUST BE RESET BY TE INSTALLER! TO RESET ADJUSTABLE IG TEMPERATURE LIMIT STOP: TM-22B LARGE MIXING S TM-22B SMALL MIXING S TERMOSTATI STOP SREW SREW OLD FINE ADJUSTMENT SREW OT SNAP AP LTR SET SREW 1. Loosen LTR screw 2. Remove SNAP AP, SREW & WASER, Remove. 3. Temporarily place on the spline rod, turn RIGT for warmer temperature, turn LEFT for cooler temperature. When valve is delivering warmest temperature desired, remove the pointer. 4. Replace on the spline rod so that its RIGT edge is resting against the STOP SREW located on the RIGT SIDE OF TE OVER. 5. The new maximum temperature has now been set. Test this temperature by holding a thermometer under the flow of water to be certain it is as desired. * LIMIT STOP MUST BE RESET AND REEKED EA TIME ANDLE IS REMOVED. IMPORTANT! ALL MIXING S MUST BE SET AT TE SAME OPERATING TEMPERATURE. SEE PAGES: 6 & 7 FOR OMPLETE PARTS BREAKDOWN heck for significant variations in outlet flow. Thermostatic valves will NOT provide the desired accuracy outside of their flow capacity range. Minimum flows must be no less than shown (see Flow apacities, 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). REMEMBER! TIS IS A ONTROL DEVIE WI MUST BE LEANED AND MAINTAINED ON A REGULAR BASIS. (SEE MAINTENANE GUIDE AND REORD, MGR-1). 2 WEB (REST STOP AGAINST SREW) STOP LTR SET SREW 1. Loosen LTR Set Screw, remove SREW. 2. Adjust to maximum desired temperature. 3. Remove, replace on spline rod with STOP (which is cast into the underside on the pointer), resting against the BOTTOM side of the WEB on the FINE ADJUSTMENT SREW. 4. If fine adjustment is needed, adjust FINE ADJUSTMENT SREW on the cover, loosen for hotter or tighten for cooler temperature. 5. Replace and check temperature, if set to desired temperature replace SREW, and tighten LTR SET SREW. 6. The new maximum temperature has now been set. Test this temperature by holding a thermometer under the flow of water to be certain it is as desired. * LIMIT STOP MUST BE RESET AND REEKED EA TIME ANDLE IS REMOVED.
6 4 1 8 2 3 R 4 5-1 6 F SETUP INSTRUTIONS TERMOMETER 1 2 12 14 V2 SMALL TERMOSTATI V1 LARGE OT INLET OLD INLET 1. The igh-low Unit MUST be piped according to a Leonard Required Piping Method (see page 4 & 5). 2. Make sure full hot and cold supplies to this assembly are operating. The temperature of the hot water source must be properly set and maintained. 3. The circulator (if used) must be turned OFF before setup. 4. Turn on enough fixtures for a flow of at least 3 GPM (114 l/min.) downstream from this system. Make sure each fixture is set to deliver full "OT" water. 5. lose outlet Valve V1 at the smaller Type TM Valve 6. Make sure Valve V2 at the large Type TM Valve is in the full open position. 7. Set outlet temperature of the large Type TM Valve to the required level. 8. Open outlet Valve V1 at the small TM Valve. 9. Shut outlet Valve V2 at the large TM valve. 1. Turn on enough fixtures for a flow of at least 2 GPM (7.6 l/min) downstream from this system. Make sure each fixture is set to deliver full "OT" water. 11. Set outlet temperature of the small TM valve to the same temperature as Step 7. 12. Open outlet Valve V2. System is operational. To balance circulation system temperature, see page 4 & 5. NOTE! FOR OPTIONAL OUTLET SETUP PIPING ARRANGEMENT, SEE PAGE 8 3
REQUIRED PIPING METOD #2 FOR SYSTEMS IRULATING 8 GPM OR LESS* (SEE PAGE 5, PIPING METODS 4 AND 5 FOR IGER FLOW SYSTEMS) IG TEMPERATURE FIXTURES TEMPERED FIXTURES TERMOMETER BALL FOR SETUP (OPTIONAL) OT WATER SOURE EAT TRAP EK TEMPERED IRULATOR ISOLATION T AQUASTAT OLD EK BALANING IG TEMPERATURE RETURN TEMPERED RETURN IRULATOR PROEDURE TO BALANE IRULATION SYSTEM 1. MAKE SURE NO WATER IS BEING DRAWN IN TE BUILDING. OPEN #1 APPROXIMATELY ALF WAY AND START IRULATOR. 2. OBSERVE TEMPERATURE UNTIL IT STABILIZES. 3. LOSE #1 SLIGTLY IF TEMPERATURE IS TOO OT, OR OPEN IT SLIGTLY IF TEMPERATURE IS TOO OLD. ALLOW TEMPERATURE TO STABILIZE, REPEAT UNTIL DESIRED IRULATION TEMPERATURE IS SET. REMEMBER! TIS IS A ONTROL DEVIE WI MUST BE LEANED AND MAINTAINED ON A REGULAR BASIS (SEE MAINTENANE GUIDE AND REORD, MGR-1). 4
METOD #4 IRULATED FLOWS BETWEEN 8-25 GPM IG TEMPERATURE DOMESTI TEMPERED WATER FIXTURES TERMOMETER IRULATOR T AQUASTAT (OPTIONAL) OT WATER SOURE EAT TRAP (OPTIONAL) #2 BY-PASS (FULL LINE SIZE) #1 OLD IG TEMPERATURE RETURN PROEDURE TO BALANE IRULATION SYSTEM 1. MAKE SURE NO WATER IS BEING DRAWN IN TE BUILDING. OPEN BALANING #1 APPROXIMATELY ALF WAY AND START IRULATOR. KEEP BALANE #2 LOSED AT TIS TIME. 2. OBSERVE TEMPERATURE UNTIL IT STABILIZES. 3. LOSE BALANING #1 SLIGTLY IF TEMPERATURE IS TOO OT, OR OPEN IT SLIGTLY IF TEMPERATURE IS TOO OLD. ALLOW TEMPERATURE TO STABILIZE, REPEAT UNTIL DESIRED IRULATION TEMPERATURE IS SET. 4. IF UNABLE TO REA DESIRED TEMPERATURE WIT #1 IN TE FULL OPEN POSITION, OPEN BALANE #2 IN SMALL INREMENTS (i.e. 1/8, ¼, 3/8, ET) UNTIL DESIRED TEMPERATURE IS AIEVED. METOD #5 IRULATED FLOWS GREATER TAN 25 GPM IG TEMPERATURE DOMESTI TEMPERED WATER FIXTURES TERMOMETER IRULATOR T AQUASTAT (OPTIONAL) OT WATER SOURE EAT TRAP (OPTIONAL) #2 BY-PASS (FULL LINE SIZE) #1 OLD IG TEMPERATURE RETURN PROEDURE TO BALANE IRULATION SYSTEM 1. MAKE SURE NO WATER IS BEING DRAWN IN TE BUILDING. OPEN BALANING #1 APPROXIMATELY ALF WAY AND START IRULATOR. KEEP BALANE #2 LOSED AT TIS TIME. 2. OBSERVE TEMPERATURE UNTIL IT STABILIZES. 3. LOSE BALANING #1 SLIGTLY IF TEMPERATURE IS TOO OT, OR OPEN IT SLIGTLY IF TEMPERATURE IS TOO OLD. ALLOW TEMPERATURE TO STABILIZE, REPEAT UNTIL DESIRED IRULATION TEMPERATURE IS SET. 4. IF UNABLE TO REA DESIRED TEMPERATURE WIT #1 IN TE FULL OPEN POSITION, OPEN BALANE #2 IN SMALL INREMENTS (i.e. 1/8, ¼, 3/8, ET) UNTIL DESIRED TEMPERATURE IS AIEVED. 5
INSTRUTIONS FOR SERVIING LARGER TM22B INSTRUTIONS FOR SERVIING SMALLER TM22B LTR SET SREW M2-2 OVER SREWS SREW TEMPERATURE ADJUSTING SREW TM28-1-12B TERMOSTATI ONTROL ASSEMBLY M2-3 OVER GASKET 1. Loosen LTR set screw. 2. Remove snap cap, screw and washer, friction spring and pointer. 3. Turn off hot and cold supplies at checkstops. Remove TM-16 cover screws to release cover and thermostatic control assembly. 4. To clean port sleeve assembly, (the thimble must move freely on the port sleeve): unscrew the check nut as far as it will go, then screw the port sleeve nut into the base. The port sleeve and thimble may be lifted out. SEE DWG BELOW 5. lean in a non-corrosive cleaning solution. DO NOT USE ABRASIVES! The port sleeve should be reassembled in the valve. TIMBLE 1. Loosen LTR set set screw. 2. Remove pointer screw, and pointer. 3. Turn off hot and cold supplies at screwdriver checkstops. Remove M2-2 cover screws to release cover and thermostatic control assembly. 4. To remove bridge assembly, TM28-1-8B, remove pointer rod nut (MU-1B) and pull bridge assembly off control rod. 5. To clean submerge bridge assembly in clean water or noncorrosive cleaning solution. DO NOT USE ABRASIVES! Be certain thimble moves freely on port sleeve. Note! Driving ball on thimble must engage coil bracket in assembling. TM-28-1-8B BRIDGE ASSY EK NUT PORT SLEEVE PORT SLEEVE NUT 6. To clean thermostat group, remove coil sleeve stud and take off thermostat group. 7. lean in a non-corrosive cleaning solution. 8. When reassembling, make sure driving ball of thermostat group engages the ball socket of the port sleeve assembly. MU-1B ROD NUT 6. To disassemble bridge assembly, see drawing next page (remove TM25-3A holder nuts with screwdriver in slots provided). 7. To clean thermostat coil, remove retaining ring and stop, loosen gland nut. Push rod through cover. Be careful not to pull coil out of shape. TROUBLESOOTING INSTRUTIONS Note: Provide serial number when ordering parts for each valve! LARGE SMALL PAKING & GASKETS 1. Leaks at stem. 2. Leak between valve cover and base. Repair Kit # 1/2Y Repair Kit # 1/26 (Packings & Gaskets) PORT SLEEVE/BRIDGE ASSEMBLY 3. Valve delivers either all hot or all cold water, or will not mix consistently. Repair Kit # R/2N Repair Kit #R/28 (Rebuilding Kit) or TM28-1-8B Bridge Assembly TERMOSTAT GROUP 4. After cleaning or replacing port sleeve/ bridge assembly, valve performance is not consistent. Repair Kit # R/2N Repair Kit #R/28 (Rebuilding Kit) or TM-28-G2 Thermostat Group EKSTOPS 5. ot water by-pass into cold line(or cold into hot). 6. Supplies cannot be shut off completely. Supplies leak at checkstop bonnets. Repair Kit #2/2Y Repair Kit #4/M2 (heckstop Kit) 6
TERMOSTATI LARGE TM PARTS TM-15B/125 OVER TGM-2/125 TERMOSTAT GROUP 57-L SNAP AP TM-25 TM-25D STOP TM-8 OIL SLEEVE STUD MU-5A O'RING (2) TERMOSTATI 3 FRITION SPRING TM-28A ROD TM-29/29A SREW W/WASER TM-16A DIAL PLATE TM-16 OVER SREWS TM-21/125 FLANGE PAKING TGM-1/2 PORT SLEEVE ASSY TM-3/2 PORT SLEEVE NUT ASSY TM-16 DIAL PLATE EKSTOP PARTS REPAIR KITS * 477 SWIVEL NUT (* IF APPLIABLE) 4733 LOWER STEM & PAKING/O'RING *474 SWIVEL 4724 4742 YELLOW SPRING 4727 UPPER STEM 313 O'RINGS (2) 4728 AP WASER 4723 AP KIT 1/2Y * PAKINGS & GASKETS **=2 EA. MU-5A O'RING ** 4742 4733 YELLOW LOWER STEM SPRING ** & PAKING ** 313 UPPER STEM O'RING (4) KIT R/2N * REBUILDING KIT TM-3/2 PORT SLEEVE NUT ASSY. TM-21/125 FLANGE PKG. 4724 SREEN ** TM-28A ROD MU-5A ROD O'RING (2) 4728 AP WASER** TM-21/125 FLANGE PKG. TM-8 OIL SLEEVE STUD TGM-1/2 PORT SLEEVE ASSY. KIT 2/2Y * EKSTOP KIT TGM-2/125 TERMOSTAT GROUP LOK-TYPE TM-36 SET SREW 2 EA: 4733 LOWER STEM & PAKING 313 STEM O'RING (4) 4742 YELLOW SPRING 4724 SREEN 4728 AP WASER REMEMBER! TIS IS A ONTROL DEVIE WI MUST BE LEANED AND MAINTAINED ON A REGULAR BASIS (SEE MAINTENANE GUIDE AND REORD) NOTE: AFTER INSTALLING NEW PARTS IT WILL BE NEESSARY TO RESET TE ADJUSTABLE IG TEMPERATURE LIMIT STOP ON EA (SEE PAGE 2). 7
SMALL TM PARTS 752 SREW 691 LTR SET SREW 57-D RF GLAND NUT 337 DIAL PLATE M2-1 RF/P OVER M2-3 OVER GASKET 7628 TM-28-1-8B BRIDGE ASSEMBLY MU-4 GLAND PAKING (2 REQ'D) MU-1B ROD NUT TM25-3 TM-25-3A P.S. OLDER P.S. O LDER NUT (2 REQ'D) (2 REQ'D) TGM-1/28 PORT SLEEVE TM-28-6B ASSEMBLY OLDER NUT O'RING (2 REQ'D) TM25-5 BRIDGE TM28-G2 TERMOSTAT GROUP TM25-3B P.S. PA KING (2 REQ'D) EKSTOP PARTS REPAIR KITS EKSTOPS M2-3A BONNET PAKING M2-9A EK SPRING M2-6A LOWER STEM & PAKING MU-4A RF UPPER STEM AND PAKING MU-5A UPPER STEM PKG. M2-2A RF EK BONNET KIT 1/26 PAKINGS & GASKETS MU-4 GLAND PKG. (2 EA) M2-3A BONNET PKG. (2 EA) M2-3 OVER GASKET M2-9A (2 EA) EK SPRING TM-28-6B OLDER NUT O'RING (2 EA) M2-6A LOWER STEM & PKG. (2 EA) MU-5A O'RING (2 EA) REMEMBER! TIS IS A ONTROL DEVIE WI MUST BE LEANED AND MAINTAINED ON A REGULAR BASIS (SEE MAINTENANE GUIDE AND REORD) KIT R/28 REBUILDING KIT M2-3 OVER GASKET TM-28-1-12B TERMOSTATI ONTROL ASSEMBLY NOTE: AFTER INSTALLING NEW PARTS IT WILL BE NEESSARY TO RESET TE ADJUSTABLE IG TEMPERATURE LIMIT STOP ON EA (SEE PAGE 2). KIT 4/M2 EKSTOP KIT 2 EA: M2-6A LOWER STEM & PAKING M2-9A EK SPRING MU-5A UPPER STEM O'RING M2-3A BONNET PKG. 8
OPTIONAL OUTLET SETUP PIPING (BY OTERS) The addition of this piping arrangement (extra tee and ball valve) eliminates the need to turn showers on and off throughout the building at setup. The flows required in the setup instructions (page 3) are set by using Ball Valve A. (make sure main outlet ball valve is closed). BALL FULL LINE SIZE PIPE TO OUTLET OF IG LOW SYSTEM OUTLET OF IG-LOW SYSTEM TEMPERED WATER TO BUILDING 1" OSE FTG. WIT AP BALL (A) AUTION! ALL TERMOSTATI WATER MIXING S AND SYSTEMS AVE LIMITATIONS! TEY WILL NOT PROVIDE TE DESIRED PERFORMANE OUTSIDE OF TEIR FLOW APAITY RANGE! ONSULT TE APAITY ART BELOW AND OBSERVE MINIMUM FLOWS SOWN. FLOW APAITIES MINIMUM FLOW (GPM) (l/min) 5.3 1 15.7.97 1.4 PRESSURE DROP (PSIG) 2 25 3 35 4 1.7 2.1 2.4 2.8 45 3.1 5 PSI 3.4 BAR 1. (3.8) 78 295 113 129 145 428 488 549 163 617 172 651 188 197 214 712 746 81 226 856 GPM l/min LIMITED WARRANTY Leonard Valve ompany (hereinafter, Leonard ) warrants the original purchaser that products manufactured by Leonard will be free from defects in material or workmanship under normal conditions of use, when properly installed and maintained in accordance with 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. Leonard provides no warranty, express or implied, which extends beyond the description contained herein. SPEIFIALLY DISLAIMS ANY AND ALL IMPLIED WARRANTIES OF MERANTABILITY OR OF FITNESS FOR A PARTIULAR PURPOSE. Nonetheless, some jurisdictions may not allow the disclaimer of certain implied warranties, in which case Leonard hereby limits such implied warranties to the duration of the limited warranty period contained herein. Some jurisdictions may not allow limitations on how long an implied warranty lasts, so the foregoing durational limitation may not apply to you. In no event will Leonard be liable for labor or incidental or consequential damages. Any alteration or improper installation or use of this product will void this limited warranty. If any provision of this limited warranty is prohibited by law in the applicable jurisdiction, such provision shall be null and void, but the remainder of this limited warranty shall continue in full force and effect. 29 Leonard Valve ompany Printed in USA