Lochinvar BLT2118 manual

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Table of contents for the manual

  • Page 1

    L TV V AL VE APPLICA TION INSTRUCTIONS FOR LOW TEMPERA TURE PROTECTION COPPER-FIN AND POWER-FIN MODELS CB 495 - 2066 / CH 401 - 2071 AND PB 501 - 2000 INS7238 Rev C Kit components: V AL30000 - 1 1/2" V AL VE Models: CB 45 - 500 • V AL20000 1 1/2" L T V V alv e • INS7238 Instruction Sheet V AL3048 - 2" V AL VE Models: CB 495 - 745[...]

  • Page 2

    2 of 8 T ypical piping applications: Figure 4 _Primary/Secondary Piping of a Single Boiler - 1 1/2" V alve Figure 5_ Primary /Secondary Piping of Multiple Boilers - 1 1/2" V alve for each boiler DET AIL DET AIL C = SYSTEM RETURN WATER B = FROM BOILER OUTLET A = BLENDED WATER *Best practice for Indoor/Outdoor reset. **Best practice for set[...]

  • Page 3

    3 of 8 T ypical piping applications (cont.): Figure 6_ Primary /Secondary Piping of a Single Boiler - 2" V alve Figure 7 _Primary/Secondary Piping of Multiple Boilers - 2" V alve for each boiler Note: V alve must be installed with proper port orientation. Failure to observe port markings on the valve body prior to installing the valve cou[...]

  • Page 4

    T ypical piping applications (cont.): Figure 8 _Primary/Secondary Piping of a Single Boiler - 2 1/2" V alve Figure 9 _Primary/Secondary Piping of Multiple Boilers - 2 1/2" V alve for each boiler DET AIL DET AIL Note: V alve must be installed with proper port orientation. Failure to observe port markings on the valve body prior to installi[...]

  • Page 5

    Figure 1 1 _2" L TV V alve - Up to 750,000 Btu/hr Figure 12 _2 1/2" L TV V alve - 990,000 Btu/hr and up Figure 10 _1 1/2" L TV V alve - 45,000 - 500,000 Btu/hr PORT "A" PORT "B" PORT "C" 6.125 3.750 5.250 A B C SIDE TOP 5 of 8 INS7238 Rev C[...]

  • Page 6

    Figure 14 _2" - Flow vs. Pressure Drop Figure 15 _2 1/2" - Flow vs. Pressure Drop FLOW vs. PRESSURE DROP FLOW IN U.S. GPM Pressure Drop, PSID Figure 13 _1 1/2" - Flow vs. Pressure Drop 6 of 8 INS7238 Rev C Maintenance instr uctions The L T V valv e is maintenance fr ee. It does not r equire r egular cleaning or calibration. I n most [...]

  • Page 7

    7 of 8 INS7238 Rev C Notes[...]

  • Page 8

    Revision Notes: Revision A (INS7238 Rev A) reflects the addition of the 1 1/2" valve. Revision B (INS7238 Rev B) reflects the addition of the maintenance instructions. Revision C (ECO C02335) reflects the revision of FIG .’s. 1, 2, 3, 4, 6 & 8. 10/08 - Printed in U.S.A.[...]