4 2 AS SE 1 17 6 8 2 3 1 LEONAD 4 5-1 6 C F 14 1 12 4 2 1 17 6 8 2 3 1 LEONAD 4 5-1 6 C F 14 1 12 BULLETIN G-11F February 29 INSTALLATION ADJUSTMENT SEVICE HIGH-LOW MANIFOLD SYSTEMS TM-42A Valve assemblies are 117 listed Valve assemblies are CUPC listed IMPOTANT! Provide serial numbers for both valves when ordering parts!! Top valve TM-26A manufactured after July 27 starting with serial # TM261A Bottom valve TM-2 manufactured after July 27 starting with serial # TM239272 DOMESTIC OUTLET DOMESTIC OUTLET HOT INLET COLD INLET INSTALLATION HOT INLET COLD INLET 1. Type TM manifold systems are factory pre- 4. Flush pipes thoroughly after system has been assembled and tested and include large and small connected. thermostatic water mixing valves which function 5. If this assembly is installed on a recirculated hot as a system to meet both high and low demand water system it MUST be piped according to for tempered water. EQUIED PIPING METHOD #2 (see page 4). 2. System should be installed at a location where it 6. efer to page 3 of this bulletin for correct Setup can easily be cleaned, adjusted or repaired. Instructions. 3. System supplies must be connected as shown (Hot-left, Cold-right). Exercise caution when soldering. Maximum Operating Pressure 125PSI (86 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. EMEMBE! THIS IS A CONTOL SYSTEM WHICH MUST BE CLEANED AND MAINTAINED ON A EGULA BASIS (SEE MAINTENANCE GUIDE AND ECOD MG-1). 136 Elmwood Avenue, Cranston, I 291 USA Phone: 41.461.12 Fax: 41.941.531 Email: info@leonardvalve.com Web Site: http://www.leonardvalve.com
117 EMEMBE! THIS IS A CONTOL DEVICE WHICH MUST BE CLEANED AND MAINTAINED ON A EGULA BASIS. (SEE MAINTENANCE GUIDE AND ECOD, MG-1). 2 117 ADJUSTMENT AND SEVICE 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. WANING NOTE: High Low Manifold Systems includ e 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 ecord MG-1. These mixing valves are equipped with an adjustable high temperature limit stop factory set at approximately 12 F (49 C) with an incoming hot water supply temperature of 15 F (65.5 C). If the hot water supply temperature of the job is greater than 15 F (65.5 C), the valves when turned to full HOT will deliver water in excess of 12 F (49 C) and the limit stops MUST BE ESET BY THE INSTALLE! TO ESET ADJUSTABLE HIGH TEMPEATUE LIMIT STOP: TM-26A (TOP ) TM-2 (BOTTOM ) COLD FINE ADJUSTMENT SCEW HOT HOT COLD FINE ADJUSTMENT SCEW WEB (EST STOP AGAINST SCEW) STOP LT SET SCEW STOP LT SET SCEW WEB (EST STOP AGAINST SCEW) 1. Loosen LT Set Screw, remove. 2. Adjust to maximum desired temperature. 3. emove, 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 SCEW. 4. If fine adjustment is needed, adjust FINE ADJUSTMENT SCEW on the cover, loosen for hotter or tighten for cooler temperature. 5. eplace and check temperature, if set to desired temperature replace, and tighten LT SET SCEW. 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 ESET AND ECHECKED EACH TIME HANDLE IS EMOVED. 1. Loosen LT SET SCEW, remove. 2. Adjust to maximum desired temperature. 3. emove, 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 SCEW. 4. If fine adjustment is needed, adjust FINE ADJUSTMENT SCEW on the cover, loosen for hotter or tighten for cooler temperature. 5. eplace and check temperature, if set to desired temperature replace, and tighten LT SET SCEW. 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 ESET AND ECHECKED EACH TIME HANDLE IS EMOVED. IMPOTANT! BOTH MIXING S MUST BE SET AT THE SAME OPEATING TEMPEATUE. SEE PAGES: 6 & 7 FO COMPLETE PATS BEAKDOWN Check 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 Capacities, page 8). If installed on a recirculated hot water system, make certain the valve is piped according to Leonard equired Piping Method #2 (see page 4).
4 2 117 117 6 8 2 3 1 LEONAD 4 5-1 6 C F 14 SETUP INSTUCTIONS THEMOMETE DOMESTIC TEMPEED WATE 1 V2 BOTTOM TM-2 12 V1 TOP TM-26A HOT INLET COLD INLET 1. TM-186 High-Low Unit MUST be piped according to Method #2 (see page 4). 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 2 GPM downstream from this system. Make sure each fixture is set to deliver full "HOT" water. 5. Close outlet Valve V1 at the bottom Type TM Valve. 6. Make sure Valve V2 at the top Type TM Valve is in the full open position. 7. Set outlet temperature of the top Type TM Valve to the required level. 8. Open outlet Valve V1 at the bottom TM Valve. 9. Shut outlet Valve V2 at the top TM valve. 1. Turn on enough fixtures for a flow of at least 2 GPM downstream from this system. Make sure each fixture is set to deliver full "HOT" water. 11. Set outlet temperature of the bottom TM valve to the same temperature as the top TM Valve. 12. Open outlet Valve V2. System is operational. 13. IMPOTANT!! See page 4 to balance recirculation system. * NOTE! FO OPTIONAL OUTLET SETUP PIPING AANGEMENT, SEE PAGE 8 3
EQUIED METHOD OF PIPING (ECICULATED DOMESTIC WATE SYSTEMS) 4 2 AS SE 117 AS SE 117 6 1-1 2 LEONAD C F 6 3 8 14 4 5 1 12 METHOD #2 HIGH TEMPEATUE FIXTUES TEMPEED FIXTUES BALL FO SETUP (OPTIONAL) HOT WATE SOUCE HEAT TAP TEMPEED CICULATO CHECK C ISOLATION T AQUASTAT CHECK COLD SUPPLY BALANCING HIGH TEMPEATUE ETUN TEMPEED ETUN C CICULATO THIS PIPING METHOD IS NOT TO BE USED FO MOE THAN ONE BUILDING POCEDUE TO BALANCE ECICULATION SYSTEM 1. MAKE SUE NO WATE IS BEING DAWN IN THE BUILDING. OPEN BALANCING, APPOXIMATELY HALF WAY AND STAT CICULATO. 2. OBSEVE TEMPEATUE UNTIL IT STABILIZES. 3. CLOSE BALANCING SLIGHTLY IF TEMPEATUE IS TOO HOT, O OPEN IT SLIGHTLY IF TEMPEATUE IS TOO COLD AND ALLOW TEMPEATUE TO STABILIZE. EPEAT UNTIL DESIED ECICULATED TEMPEATUE IS SET. EMEMBE! THIS IS A CONTOL DEVICE WHICH MUST BE CLEANED AND MAINTAINED ON A EGULA BASIS (SEE MAINTENANCE GUIDE AND ECOD, MG- 1). 4
INSTUCTIONS FO SEVICING TOP TM-26 INSTUCTIONS FO SEVICING BOTTOM TM-2 LT SET SCEW M2-2C SCEWS LT SET SCEW M2-2C SCEWS TEMPEATUE ADJUSTING SCEW TM28-1-12B THEMOSTATIC CONTOL MBLY TEMPEATUE ADJUSTING SCEW TM2-1-12B THEMOSTATIC CONTOL MBLY 1. Loosen LT set set screw. 2. emove pointer screw, and pointer. 3. Turn off hot and cold supplies at screwdriver checkstops. emove M2-2C 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. 1. Loosen LT set set screw. 2. emove pointer screw, and pointer. 3. Turn off hot and cold supplies at screwdriver checkstops. emove M2-2C cover screws to release cover and thermostatic control assembly. 4. To remove bridge assembly, M2-1-8B, remove pointer rod nut (MU-1B) and pull bridge assembly off control rod. Do not misplace M2-14B driving stud. TM-28-1-8B BIDGE ASSY M2-1-8B BIDGE ASSY POT SLEEVE THIMBLE M2-5B P.S. HOLDE NUT MU-1B OD NUT 5. To clean, submerge bridge in clean water or non-corrosive cleaning solution. DO NOT USE ABASIVES! Be certain thimble moves freely on port sleeve. Note! Driving ball must engage slot in coil bracket when reassembling. 6. 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. 7. Clean with a non-corrosive cleaning solution. DO NOT USE ABASIVES! MU-1B OD NUT M2-14B DIVING STUD 5. To clean, submerge bridge in clean water or non-corrosive cleaning solution. DO NOT USE ABASIVES! Be certain thimble moves freely on port sleeve. Note! Driving stud (M2-14B) must engage slot in thimble when reassembling. 6. 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. 7. Clean with a non-corrosive cleaning solution. DO NOT USE ABASIVES! TOUBLESHOOTING INSTUCTIONS Note: Provide valve serial number when ordering parts for either valve! LAGE TM-26A SMALL TM-2 PACKING & S 1. Leaks at stem. 2. Leak between valve cover and base. epair Kit # 1/26Y epair Kit # 1/M2 (Packings & Gaskets) POT SLEEVE/BIDGE MBLY THEMOSTAT GOUP 3. Valve delivers either all hot or all cold water, or will not mix consistently. 4. After cleaning or replacing port sleeve/ bridge assembly, valve performance is not consistent. epair Kit # /28 (ebuilding Kit) or TM28-1-8B Thermostat group epair Kit # /28 or TM-28G2 Thermostat group epair Kit #/M2 (ebuilding Kit) or M2-1-8B Bridge Assembly epair Kit #/M2 (ebuilding Kit) or M-2-G2 Thermostat Group CHECKSTOPS 5. Hot water by-pass into cold line(or cold into hot). 6. Supplies cannot be shut off completely. Supplies leak at checkstop bonnets. See pages 6 & 7 for Parts Breakdowns 5 epair Kit #4/26Y (Checkstop Kit) epair Kit #4/M2 (Checkstop Kit)
TM-26A PATS 752 691 LT SET SCEW 57-D F GLAND NUT 337 DIAL PLATE M2-1C F/CP 7628 TM-28-1-8B BIDGE MBLY MU-4C GLAND PACKING MU-1B OD NUT TM25-3 TM-25-3A P.S. HOLDE P.S. HOLDE NUT TGM-1/28 POT SLEEVE TM-28-6B MBLY HOLDE NUT O'ING TM25-5 BIDGE TM28-G2 THEMOSTAT GOUP TM25-3B P.S. PACKING CHECKSTOP PATS EPAI KITS CHECKSTOPS M2-3A BONNET PACKING MU-4A F/CP UPPE STEM AND PACKING M2-2A F/CP 452 YELLOW CHECK BONNET CHECK SPING M2-6A LOWE STEM & PACKING MU-5A UPPE STEM PKG. KIT 1/26Y PACKINGS & S MU-4C GLAND PKG. M2-3A BONNET PKG. 452 YELLOW CHECK SPING KIT /28 EBUILDING KIT TM-28-6B HOLDE NUT O'ING M2-6A LOWE STEM & PKG. MU-5A O'ING TM-28-1-12B THEMOSTATIC CONTOL MBLY KIT 4/26Y CHECKSTOP KIT 2 EACH: M2-6A LOWE STEM & PACKING 452 YELLOW CHECK SPING MU-5A UPPE STEM O'ING M2-3A BONNET PKG. EMEMBE! THIS IS A CONTOL DEVICE WHICH MUST BE CLEANED AND MAINTAINED ON A EGULA BASIS (SEE MAINTENANCE GUIDE AND ECOD). NOTE: AFTE INSTALLING NEW PATS IT WILL BE NECESSAY TO ESET THE ADJUSTABLE HIGH TEMPEATUE LIMIT STOP ON EACH (SEE PAGE 2). 6
TM-2 PATS 752 691 LT SET SCEW 57-D(F) GLAND NUT M2-1C(F)(CP) 7628 M2-14B DIVING STUD M-2-1-8B BIDGE MBLY MU-4C GLAND PACKING M2-5B P.S. HOLDE NUT M2-6B HOLDE NUT O'ING M2-1B BIDGE M2-G2 THEMOSTAT GOUP DUA-trol MU-1B OD NUT M2-4B P.S. HOLDE M2-G1 POT SLEEVE MBLY M2-3B P.S. PACKING M2-14B DIVING STUD CHECKSTOP PATS EPAI KITS CHECKSTOPS M2-3A BONNET PACKING M2-9A CHECK SPING M2-6A LOWE STEM & PACKING MU-4A F/CP UPPE STEM AND PACKING MU-5A UPPE STEM PKG. M2-2A F/CP CHECK BONNET EPAI KIT 1/M2 PACKINGS & S MU-4C GLAND PKG. M2-3A BONNET PKG. M2-9A SPING M2-6A LOWE STEM & PKG. M2-6B HOLDE NUT O'ING EPAI KIT /M2 EBUILDING KIT MU-5A O'ING M2-1-12B THEMOSTATIC CONTOL MBLY EMEMBE! THIS IS A CONTOL DEVICE WHICH MUST BE CLEANED AND MAINTAINED ON A EGULA BASIS (SEE MAINTENANCE GUIDE AND ECOD, MG-1). NOTE: AFTE INSTALLING NEW PATS IT WILL BE NECESSAY TO ESET THE ADJUSTABLE HIGH TEMPEATUE LIMIT STOP ON EACH (SEE PAGE 2). EPAI KIT 4/M2 EBUILDING KIT 2 EACH: M2-6A LOWE STEM & PACKING MU-5A UPPE STEM O'ING M2-9A SPING M2-3A BONNET PKG. 7
OPTIONAL OUTLET SETUP PIPING (BY OTHES) BALL TEMPEED WATE TO BUILDING 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). FULL LINE SIZE PIPE TO OUTLET OF HIGH LOW SYSTEM OUTLET OF HIGH-LOW SYSTEM BALL (A) CAUTION! ALL THEMOSTATIC WATE MIXING S AND SYSTEMS HAVE LIMITATIONS! THEY WILL NOT POVIDE THE DESIED PEFOMANCE OUTSIDE OF THEI FLOW CAPACITY ANGE! CONSULT THE CAPACITY CHAT BELOW AND OBSEVE MINIMUM FLOWS SHOWN. FLOW CAPACITIES MODEL IN OUT MINIMUM FLOW (GPM) (l/min) SYSTEM PESSUE DOP (PSIG) 5 1 15 2 25 3 35 4,3.7.97 1.4 1.7 2.1 2.4 2.8 45 5 3.1 3.4 PSI BA TM-42A 3/4" 1" 1. (3.7) 12 45 18 68 22 26 83 98 3 33 114 125 36 136 39 42 148 159 44 GPM 167 l/min LIMITED WAANTY Leonard Valve Company (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. LEONAD SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WAANTIES OF MECHANTABILITY O OF FITNESS FO A PATICULA PUPOSE. 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 Company Printed in USA 8 136 Elmwood Avenue, Cranston, I 291 USA Phone: 41.461.12 Fax: 41.941.531 Email: info@leonardvalve.com Web Site: http://www.leonardvalve.com