Honeywell TRIPLEAQUASTAT L8151A manual

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Table of contents for the manual

  • Page 1

    1 60-2553—3 L8151A Tr iple Aquastat ® Relay J. H. • Rev. 1-95 • ©Honeywell Inc. 1995 • Form Number 60-2553—3 The L8151A is a remote bulb controller for use with hydronic heating systems that include domes- tic hot water service. ■ Provides high limit, low limit, and circulator control for maintaining boiler temperatures. ■ Can provi[...]

  • Page 2

    60-2553—3 2 L8151A SPECIFICATIONS • INSTALLATION • ORDERING INFORMATION Specif ication IMPORTANT: The specifications given in this publication do not include normal manufacturing tolerances. Therefore, this unit may not exactly match the listed specifications. Also, this product is tested and cali- brated under closely controlled conditions, [...]

  • Page 3

    3 60-2553—3 L8151A INSTALLATION IMMERSION WELL MOUNTING NOTE: Immersion well must be ordered separately. For a list of available wells, refer to form 68-0040, Wells and Fittings for Temperature Controllers. The boiler manufacturer generally provides a tapping for the immersion well. This tapping should be located at a point where typical water te[...]

  • Page 4

    60-2553—3 4 L8151A INSTALLATION Fig. 3—Remote bulb installation. All wiring must comply with local electrical codes and ordinances. The limits given in the Specifications section must not be exceeded when applying this control. Use manufacturer instructions when wiring controlled equip- ment or refer to typical hookups in Fig. 4 through 6. When[...]

  • Page 5

    5 60-2553—3 L8151A OPERATION AND SETTINGS Operation and Settings HIGH LIMIT The high limit opens and turns off the burner when the water temperature reaches the setpoint. The high limit automatically resets after the water temperature drops past the setpoint and through the 10 ° F (6 ° C) differential. W ARNING CAN CAUSE PROPERTY DAMAGE, SEVERE[...]

  • Page 6

    60-2553—3 6 EXAMPLE: Setpoint of 140 ° F (60 ° C) differential set at 25 ° F (14 ° C). On a temperature rise, R-B breaks and R-W makes at 155 ° F (68 ° C). On a temperature fall, R-B makes and R-W breaks at 130 ° F (54 ° C); see Fig. 7. L8151A OPERATION AND SETTINGS • CHECKOUT THERMOSTAT ANTICIPATOR Set the thermostat heat anticipator a[...]