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L6006A1145 Aquastat Controllers

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 Honeywell L6006A1145 Aquastat ® Controllers, Stop factory-set at 240 F (116 C);



Controller operates in response to temperature changes in hydronic heating systems. It provides spdt switching for high limit, low limit or circulator control. The L6006A is designed for horizontal or vertical insertion/mounting using an immersion well (not included). Refer to Wells and Fittings for Temperature Controllers, form 68-0040, for part numbers and ordering information. A package of heat-conductive compound is included for use when the sensing bulb is inserted into a well designed for a larger bulb. NOTE: See form 69-0955, 107408, 120650 Heat Conductive Compounds Material Safety Data Sheet (MSDS) when used with this AquastatÆ Controller. A 124904 Well Adapter, for use on old wells that do not fit the L6006A Immersion Well Clamp, can be ordered separately, see form 68-0040. A setting stop is factory-installed to prevent setting above 240°F (116°C) limit. Adjustable differential range is 5°F to 30°F (3°C to 17°C). Table 1. Electrical Ratings (Amperes): INSTALLATION When Installing this ProductÖ 1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. 2. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application. 3. Installer must be a trained, experienced service technician. 4. After installation is complete, check out product operation as provided in these instructions. WARNING Electrical Shock Hazard. Can cause serious injury, death or equipment damage. Disconnect power supply before connecting wiring to prevent electrical shock or equipment damage. Follow instructions furnished by the system manufacturer, if available. Otherwise, refer to the following procedure. To install this L6006A as a replacement for other L6006A models: 1. Shut off the power and remove the old control in the existing application. If the old immersion well appears suitable and if the adapter clamp on the L6006A Aquastat Controller fits the old immersion well spud, this immersion well does not need to be replaced. 2. If the immersion well is to be replaced and if the system is filled, drain the system to a point below the boiler tapping. 3. Remove plug (or old immersion well) from boiler tapping. 4. Install new immersion well (not included). When a boiler tapping is greater than 1/2 in. or 3/4 in. NPT, use a reduction fitting to adapt the boiler opening to the 1/2 in. or 3/4 in. NPT threads that are standard with the well or fitting. Use thread seal compound or equivalent on the fitting. Type 120 Vac 240 Vac Full Load 8 5.1 Locked Rotor 48 30.6 Millivoltage 0.25 to 0.25 to 12 Vdc L6006A AQUASTATÆ CONTROLLER 69-0235ó5 2 NOTE: Some models have an adjustable tubing length to 3 in. (76 mm). In these models, pull out extra tubing inside the case if needed. 5. Fill the system. Make sure that the well is screwed in tightly enough to prevent leakage. Do not tighten after controller is secured to the well, applying force to the case. 6. Loosen the screw (at the top of the case, above the scale setting), and remove the cover. Loosen the two screws that secure the adapter clamp (See Fig. 1). 7. Determine whether vertical or horizontal mounting method is desired; see Fig. 2 for mounting bracket placement. 8. Insert the sensing element into the immersion well. 9. Fasten the case of the Aquastat Controller to the well with the adapter clamp. Make certain that the clamp is properly positioned over the groove of the well spud. Also be sure the flange at the opening of the well fits snugly into the opening of the case. Be sure the sensing element bulb bottoms in the well. Wiring Disconnect power supply before connecting wiring to prevent electrical shock or equipment damage. Make sure all wiring complies with local electrical codes and ordinances. The case has a knockout for 1/2 in. conduit. Fig. 3 and 4 show typical wiring diagrams of Aquastat® Controllers used in heating systems. Fig. 1. Internal view of L6006A and accompanying components. Fig. 2. Mounting bracket placement for vertical or horizontal mounting. M8870A 1 1 WITH VERTICAL MOUNTING OF IMMERSION WELL, ELEMENT IS ATTACHED TO BOTTOM OF CASE. SETPOINT INDICATING WHEEL DIFFERENTIAL ADJUSTMENT WHEEL INSERTION ELEMENT HEAT CONDUCTIVE COMPOUND ADAPTER CLAMP SCREW (2) M8871 VERTICAL MOUNTING HORIZONTAL MOUNTING L6006A AQUASTAT CONTROLLER 3 69-0235ó5 Fig. 3. Typical wiring hookup using L6006 for low limit and circulator control in oil-fired hydronic system. Fig. 4. Typical wiring hookup using L6006 with L8148A Aquastat Relay. OPERATION Select control settings according to the heating system manufacturer recommendations. High-limit Controlleróshuts off burner when water temperature exceeds high-limit setting. R-B contacts make, and burner restarts when temperature drops to high-limit setting minus the temperature differential. Low-limit Controllerómaintains minimum water temperature for domestic hot water; e.g., tankless coil in heating boiler. Makes R-B contacts at temperature setting minus differential. Circulator Controlleróprevents circulation of water that is not hot enough. Breaks R-W contacts for circulator circuit at temperature setting minus differential; remakes the R-W contacts for circuit when the temperature setting is reached. Switching action operates as follows: When there is a drop in water temperature (to dial setting, less differential), the R to B contacts make and the R to W contacts break, preventing circulator operation. When there is a rise in water temperature (to dial setting), R to B contacts break and R to W circulator contacts make. ADJUSTMENT Set the differential according to the system manufacturer recommendations. Rotate the wheel on the back of the snap switch until the desired reading is aligned with the V notch in the frame. The wheel provides an adjustment from 5°F to 30°F (3°C to 17°C). Replace the cover on the Aquastat Controller. Adjust the control point according to the system manufacturer recommendations. To adjust, insert a screwdriver in the slotted screw type head located beneath the window in the cover. Turn the scale to the desired control point. Move the factory-set stop if desired, as shown in Fig. 5. Fig. 5. Moving factory-set stop on L6006A. L1 (HOT) L2 1 2 1 2 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. R-B OPENS, R-W CLOSES ON TEMPERATURE RISE. M8782 PROTECTORELAY CONTROL HIGH LIMIT L6006 CIRCULATOR AND LOW LIMIT CONTROL W R B 1 2 4 3 T T IGNITION BURNER MOTOR 24V THERMOSTAT SWITCHING RELAY CIRCULATOR LINE VOLTAGE LOW VOLTAGE L1 (HOT) L2 1 1 2 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. WHEN USING CIRCULATOR LOW LIMIT CONTROL, REMOVE L1-3 JUMPER. 2 L6006 CIRCULATOR AND LOW LIMIT CONTROL L1 L2 3 R T T W B B R C1 C2 B1 B2 SERIES 80 THERMOSTAT L8148A CIRCULATOR PILOTSTAT LINE VOLTAGE GAS CONTROL OIL BURNER RELAY LINE VOLTAGE TERMINALS 1 1 2 1 2 2 M8783 LOW VOLTAGE LINE VOLTAGE TO CHANGE SETTING, INSERT BENT PAPER CLIP INTO SMALL HOLE IN DIAL AND PUSH ENOUGH TO ALLOW FOR MOVEMENT OF FACTORY-SET STOP. BENT PAPER CLIP SMALL HOLE FACTORY-SET STOP M8872 69-0235ó5 G.R. Rev. 12-01 L6006A AQUASTATÆ CONTROLLER Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. Automation and Control Solutions Automation and Control Solutio