Leonard 170-LF Manuals

Bulletin G-522 February 2013 INSTALLATION, ADJUSTMENT, SERVICE MODEL 170, 170-LF, 270, 270-USW, 270-LF, 370, 370-LF, 470 THERMOSTATIC / POINT OF USE MIXING VALVES 270 (1/2”NPT) 270-LF (1/2”NPT) ASSE1017/ASSE 1070 170 (3/8”COMP) 170-LF (3/8”COMP) ASSE 1070 370 (3/4”NPT) 370-LF (3/4”NPT) ASSE1017/ASSE 1070 170 WARNING: DO NOT USE THREAD SEALANT ON MODEL 170 470 (1”NPT) ( PICTURE NOT SHOWN ) ASSE 1017 ASS 10 0 270-USW (1/2”) ( PICTURE NOT SHOWN ) ASSE 1017 COMPRESSION CONNECTIONS 270 / 270-LF / 370 / 370-LF / 470 WARNING: When using flex hoses be careful, swivel connectors may damage inlet checks and / or element on outlet on 270, 270-LF, 370, 370-LF and 470 models. Coupling fittings may be needed if swivel connectors have a brass protruding tube or any protrusion that may damage the valve. ASSE 1070 ASSE 1070 WARNING!! 1. Valve should be installed where it can be easily cleaned, adjusted or repaired. 2. Inlets are furnished with NPT connections. When soldering close to this unit, DO NOT OVERHEAT, internal components may become damaged. 3. Leonard recommends that unions and shutoffs are installed on the inlets and outlet. 4. Use solder or pipe cement sparingly. Supply pipes should be flushed before the valve is connected. Flush outlet pipe and valve as soon as it is connected. WARNING!! WATER TEMPERATURES IN EXCESS OF 110°F (43°C) MAY CAUSE SCALDING, SEVERE INJURY, OR DEATH!! Maximum Operating Pressure: 125 PSI (860 KPA) IMPORTANT! These thermostatic water mixing valves can be adjusted to deliver water at temperatures exceeding 110°F (43°C). After installation, the installer must check the outlet water temperature and adjust the temperature setting to ensure delivery of a safe water temperature not exceeding 110°F (43°C). See 1360 Elmwood Avenue, Cranston, RI 02910 USA Phone: 401.461.1200 Fax: 401.941.5310 Email: [email protected] Web Site: http://www.leonardvalve.com p g y p g ( ) “Temperature Adjustment” next page. ADJUSTMENT AND SERVICE TEMPERATURE ADJUSTMENT WARNING WARNING! This thermostatic mixing valve’s 1. Open hot and cold water supply valves to mixing valve. 2. Open mixed water outlet. 3. With the fixture in the full open position, calibrate the mixed water outlet temperature by placing a thermometer temperature setting MUST be checked. If the temperature is too high (above 110ºF, 43ºC), the temperature knob must be adjusted immediately. Excessively hot water is DANGEROUS AND MAY CAUSE SCALDING!! PRESSURE-TEMPERATURE: Maximum Pressure:125 PSI (8 6 BAR) mixed water outlet temperature by placing a thermometer in the mixed water stream. Loosen knob set screw with 5/64” allen wrench. Adjust the setting of the valve to obtain the desired temperature (counterclockwise, to increase temperature-clockwise to decrease temperature.) 4. Tighten knob set screw to lock temperature setting. Maximum Pressure:125 PSI (8.6 BAR) Maximum Hot Water temperature: 200F- (93°C) Approach Temperature 5°F (2.8°C) above set point. TROUBLESHOOTING INSTRUCTIONS GASKET KIT Leaking water under knob. Leaking water between valve cover and body. GASKET KIT ALL Models 1/WX REBUILDING KIT Valve will not control temperature after cleaning. REBUILDING KIT Model 170, 170-LF R/170 Model 270, 270-LF, 270 USW 370 370 LF 470 R/270/370 270-USW, 370, 370-LF 470 R/270/370 CHECKSTOP KIT Hot water by-pass into cold line. Cold water by-pass into hot line. CHECK KIT Model 170, 170-LF 4/108 Model 270, 270-LF 4/220 Model 270-USW 4/220USW Model 370, 370-LF, 470 4/320 SEE PAGE 3 FOR COMPLETE PARTS BREAKDOWN SEE PAGE 3 FOR COMPLETE PARTS BREAKDOWN SEE PAGE 4 FOR PIPING IN RECIRCULATED OR NON-RECIRCULATED WATER SYSTEMS 8.7 6.4 0.95 270 1/2" 1/2" 21 0 95 13 3.5 0.25 5.5 170 MODEL MINIMUM 3/8" 3/8" IN OUT .7 .3 1.7 0.25 L\MIN 2.3 FLOW * (GPM) 5 10 19 18 15 12 10 L\MIN 17 14 11.4 11.5 36 9.5 32 25 28 6.5 7.5 8.5 40 38 43 10.5 10 45 L\MIN 12 GPM 3.6 30 2.1 PRESSURE DROP 1.7 1.0 1.4 2.7 3.0 3.2 15 20 25 2.8 2.4 3.1 4.0 4.4 4.7 35 40 45 3.4 BAR 5.0 GPM 50 PSI 270-LF 270-USW 170-LF * Minimum flow certified to ASSE 1070 370 3/4" 3/4" 21 0.95 13 0.5 1.9 6 4 15 23 12.5 36 38 10 32 25 28 8 7 27 30 9 34 40 38 43 11.5 10.5 40 43 47 45 L\MIN L\MIN 49 13 GPM 470 1" 1" 0.5 1.9 6 4 15 23 12.5 38 10 8 7 27 30 9 34 11.5 10.5 40 43 47 L\MIN 49 13 GPM 270 USW 370-LF IMPORTANT!! THIS IS A CONTROL SYSTEM WHICH MUST BE CLEANED AND MAINTAINED ON A REGULAR BASIS (SEE MAINTENANCE GUIDE AND RECORD MGR-1001). 1360 Elmwood Avenue, Cranston, RI 02910 USA Phone: 401.461.1200 Fax: 401.941.5310 Email: [email protected] WEB: http://www.leonardvalve.com 2 VALVE PARTS LIST CHECK CHECK CLIP (MODEL 270/270-LF/370/ 370-LF/470 ONLY) SHUTTLE ASSEMBLY STEM ASSEMBLY STEM ASSEMBLY O'RING COVER O'RING RETAINING CLIP KNOB 170 - BP ONLY RETURN SPRING SHUTTLE ASSEMBLY SCREW DIAL PLATE DO NOT REMOVE SNAP RING ON STEM - INJURY MAY OCCUR PACKING PART # 7539 MODEL 170, 170-LF, 270, 270-LF, 270-USW, 370, 370-LF, 470 MODEL 170, 170-LF 1/ WX Gasket Kit MODEL 270, 270-LF 1/ WX Gasket Kit MODEL 270-USW 1/ WX Gasket Kit MODEL 370, 370-LF, 470 1/ WX Gasket Kit SHUTTLE O'RING COVER KNOB SET SCREW 1/ WX Gasket Kit Shuttle o’ring Stem assembly o’ring Cover o’ring R/ 170 Rebuild Kit Return spring Shuttle assembly Shuttle o’ring Stem assembly o’ring 1/ WX Gasket Kit Shuttle o’ring Stem assembly o’ring Cover o’ring R/ 270/370 Rebuild Kit Return spring Shuttle assembly Shuttle o’ring Stem assembly o’ring 1/ WX Gasket Kit Shuttle o’ring Stem assembly o’ring Cover o’ring R/ 270/370 Rebuild Kit Return spring Shuttle assembly Shuttle o’ring Stem assembly o’ring 1/ WX Gasket Kit Shuttle o’ring Stem assembly o’ring Cover o’ring R/ 270/370 Rebuild Kit Return spring Shuttle assembly Shuttle o’ring Stem assembly o’ring DISMANTLING & CLEANING TROUBLESHOOTING 1 ki d k b d k ki l bl Stem assembly o’ring Cover o’ring 4/108 Check valve Kit 2 Check valves Stem assembly o’ring Cover o’ring 4/220 Check valve Kit 2 Check valves 2 Check clips Stem assembly o’ring Cover o’ring 4/220USW Check valve Kit 2 Check valves 3 Union gaskets Stem assembly o’ring Cover o’ring 4/320 Check valve Kit 2 Check valves 2 Check clips 1. Shut off hot and cold water to the valve as well as the valve outlet port. 2. Loosen lock screw on side of knob with 5/64” allen wrench. 3. Remove the knob screw on top of knob. 4. Remove temperature adjustment knob. 5. Remove valve cover, which includes the stem assembly. 6. The shuttle assembly can now be removed, cleaned and inspected. Be sure to check the condition of the shuttle o-ring and replace if necessary. 1. Leaking water under knob, order gasket kit, replace stem assembly o- ring. Remove knob screw and knob, remove retaining clip, thread out the stem assembly and replace o-ring. Lubricate o-ring, thread stem into cover, replace retaining ring, knob and screw. Valve temperature must be reset after any repairs or cleaning!! See page 2. 2. Leaking water between cover and body, order gasket kit, replace cover o-ring. Remove knob screw and knob and remove valve cover and replace o-ring. Replace valve cover, knob and knob screw. Valve temperature must be reset after any repairs or cleaning!! See page 2 7. Lubricate the shuttle o-ring before installing the shuttle assembly. 8. Install the cover assembly including o-ring back onto valve and tighten. 9. Replace knob and knob screw. 10. Valve temperature must be reset after any repairs or cleaning!! See Page 2. Temperature Adjustment page 2. 3. Hot water bypass into cold line, order checkstop kit and replace checks within inlets of valve. 4. Valve not controlling temperature even after cleaning, order complete rebuild kit. Remove knob screw and knob and remove valve cover. Replace shuttle assembly and return spring being sure to lubricate shuttle o-ring. Replace valve cover, knob and knob screw. Valve temperature must be reset after any repairs or cleaning!! See page 2. 5. Leak between valve by-pass fitting to the inlet of base. Check #265 packing, is installed or not split. 1360 Elmwood Avenue, Cranston, RI 02910 USA Phone: 401.461.1200 Fax: 401.941.5310 Email: [email protected] WEB: http://www.leonardvalve.com 3