Honeywell Thermostat L4006 User Manual

L4006A B E H Controllers boiler mounted immersion type controllers in response to temperature changes in hydronic systems breaks the circuit on a temperature rise to the setting It is used for high limit or low limit control used as a controller or as a low limit a separate limit must be used makes the circuit on a temperature rise It is as a circulator controller delaying circulator when boiler water temperature is below the setting includes a trip free manual reset switch models are designed to break the control circuit the temperature of the controlled medium the high limit setting A reset button on the front the case must be pressed to re establish the control L4006H also includes bracket and clamp for mounting on pipe or tank plastic bag of heat conductive compound is included the L4006A B E Aquastat Controllers for use when sensing bulb is inserted into a well designed for a bulb than the one used on the L4006A B E A Well Adapter for use on old wells that do not fit L4006A B E immersion well clamp can be ordered form 68 0040 Wells and Fittings for Temperature A setting stop is included to prevent setting a desired temperature on limit a well adapter or other accessories are needed refer to 68 0040 Wells and Fittings for Temperature for part numbers and ordering information Installing This Product cid 133 Read these instructions carefully Failure to follow could damage the product or cause a condition Check the ratings given in the instructions and on product to make sure the product is suitable for application INSTRUCTIONS must be a trained experienced service After installation is complete check out product as provided in these instructions Shock Hazard cause serious injury death or equipment the power supply before beginning to prevent electrical shock or damage Immersion Well Models the best thermal response with a well snugly fits the sensing bulb The bulb be inserted until it rests against the of the well Use a well of correct length bend the tubing if necessary to provide force to hold the bulb against the of the well Do not make a sharp bend in tubing A sharp bend can produce a break in tubing and cause a loss of fill This condition cause the high and low limit controls to be continuously the well is not a snug fit on the bulb use the compound as follows Fold the bag of compound lengthwise and twist Snip the end of the bag and insert into well Slowly pull out the bag while squeezing to distribute the compound evenly in the Insert the bulb into the well Bend the if necessary to provide force to hold the against the bottom of the well and to hold out end of the bulb in firm contact with the of the well Wipe off any excess compound Some models have an adjustable capillary length to 3 inches 76 mm In these pull out extra tubing from inside the if needed the boiler manufacturer instructions if available proceed as follows U S Registered Trademark 2001 Honeywell cid 149 All Rights Reserved 0915 4 AQUASTAT CONTROLLERS Remove the old control Refer to the cover insert of the old control to and tag each lead as it is disconnected Leave the old well in place if it is suitable Well is Otherwise Suitable But Does Not Fit L4006 Immersion Well Clamp a 124904 Well Adapter order separately see form to secure the L4006 to the old well The has a flange at one end for fastening the L4066 clamp Loosen but do not remove the two adapter clamp Slide the adapter onto the capillary and short tube see Fig 1 Fig 2 inset Make sure the flanged end of the adapter fits into hole in the case Position the adapter well snugly over the flange on the adapter then the clamp screws the bulb into the well as shown in Fig 2 If use the heat conductive compound as in the IMPORTANT statement on page Tighten the setscrew if one is present in the old spud against the adapter SPUD TUBE IN CENTRAL OF DIAL CLAMP OF WITH FIXED DIFFERENBTIALS DO NOT INCLUDE WHEEL MOUNTED IMMERSION WELL IS ATTACHED THE BOTTOM OF THE CASE 1 Internal view of L4006A B with horizontal well is the same with reset button added IMMERSION ASSEMBLY COMPOUND BEND IN TUBES SHOULD HOLD BULB IN GOOD THERMAL CONTACT WITH THE WELL AT TWO OPPOSITE POINTS AS IN A AND B THAT TUBES FIT FREELY IN ADAPTER SO THAT TENSION OF THE CAPILLARY TUBE AT POINT C THE SENSING BULB IN GOOD THERMAL CONTACT WITH THE BOTTOM OF WELL AT POINT D 2 Bulb in immersion well and use of adapter the Old Well Is Unsuitable Drain the system and remove the well Select a new well from form 68 0040 order well the new well refill the system and check for Loosen but do not remove the two adapter clamp Fig 1 the sensing bulb into the well until it bottoms show in Fig 2 Add heat conductive compound necessary as instructed in the IMPORTANT on page 1 AQUASTAT CONTROLLERS BULB Make sure the end of the well fits into the hole in case Position the immersion well clamp snugly the well flange and tighten the clamp screw Surface Mount Model L4006H L4006H is designed for surface mounting on piping tanks and can be mounted in any position mounting the L4006H on piping the pipe should 1 in 25 mm diameter or larger for accurate sensing STRAP Remove any insulation from the pipe Thoroughly scrape off all scale rust or paint Mount controller as shown in Fig 3 using pipe strap furnished mounting the L4006H on a tank use a pipe strap provided of appropriate length for the tank Fit the strap through the slot in the mounting bracket See 3 Shock Hazard cause serious injury death or equipment power supply before connecting to avoid electrical shock or equipment wiring must comply with local codes and ordinances wire size insulation enclosure etc See Fig 4 5 for typical diagrams of Aquastat Controllers used heating systems these Aquastat Controllers with copper wire only 3 Mount L4006H directly on surface VOLT RELAY OR L4007A LIMIT OR L4007B OR L4007A LOW LIMIT CONTROLLER SUPPLY PROVIDE DISCONNECT MEANS AND PROTECTION AS REQUIRED L4006E FOR MANUAL RESET 4 Hookup for oil fired summer winter hydronic with domestic hot water This is typical control for domestic hot water is added or each Aquastat Controller is mounted in a location AQUASTAT CONTROLLERS VOLT WATER OR LIMIT SUPPLY PROVIDE DISCONNECT MEANS AND PROTECTION AS REQUIRED L4006E FOR MANUAL RESET 5 Typical hookup for gas fired system with hot water proper selections of settings follow boiler recommendations High limit controller Shuts off burner when water exceeds high limit setting Burner when temperature drops to high limit minus the temperature differential L4006E or H see Manual Reset section Low limit controller Maintains minimum boiler tem for domestic hot water Turns boiler on at setting less differential Circulator controller Prevents circulation of water is not hot enough Breaks ci