Honeywell L6006, L4007, L6008, L6007, L4008 specifications Installation, When Installing This Product…

L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS

INSTALLATION

When Installing This Product…

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 product operation as provided in these instructions.

WARNING

Explosion Hazard.

Can cause serious injury, death or property damage.

This product is intended for use only in systems with a pressure relief valve.

WARNING

Electrical Shock Hazard.

Can cause serious injury or death.

Disconnect power supply before beginning installation to prevent electrical shock or equipment damage.

CAUTION

Equipment Damage Hazard.

Use of incorrect device or improper installation can damage the system.

1.Do not replace immersion-type Aquastat Controller with strap-on Aquastat Controller.

2.Do not secure draw nut so tightly that retainer clamp can collapse tubing.

IMPORTANT

1.Terminals on these Aquastat relays are approved for copper wire only.

2.Controller may be used with or without immersion well. If used, well must snugly fit sensing bulb for best thermal response. Insert bulb until it rests against the bottom of the well. Use well of correct length and bend the tubing, if necessary, to provide enough force to hold the bulb against the bottom of the well. Avoid making a sharp bend in the tubing as it can produce a break in the tubing and cause loss of fill. This condition causes the High and Low Limit controls to be made continuously.

3.If well does not snugly fit on bulb, use the heat- conductive compound, included with Super Tradeline and Tradeline models, as follows: Fold the plastic bag of compound lengthwise and twist gently. Snip the end of the bag and insert into the well. Slowly pull out the bag while squeezing firmly to distribute compound evenly in the well. Insert the bulb into the well. Bend the tubing, if necessary, to provide force to hold the bulb against the bottom of the well and to hold the outer end of the bulb firmly in contact with the side of the well. Wipe off excess compound.

The manufacturer usually provides a tapping for insertion of the controller sensing element. This tapping is located at a point where typical water temperature can be measured.

Depending on the model, the element is inserted in an immersion well, through a boiler fitting, or directly immersed.

Installation should be made by a qualified service technician. Follow the instructions furnished by the system manufacturer, if available. Otherwise, refer to appropriate procedure listed below.

Mounting Immersion Well and Direct

Immersion Models (L4006A,B,C,E,G;

L4007A,B; L6006A,B; L6007A)

Installing Immersion Well Models (L4006A,B,E,G; L4007A,B; L6006A; L6007A)

On an existing installation, shut off the power and remove the old control. If the old immersion well appears suitable, and if the adapter clamp on the Aquastat Controller fits the old well spud, this well does not need to be replaced.

To replace the well:

1.If the system is filled, drain the system to a point below the boiler tapping.

2.Remove the old well from the boiler tapping.

3.Install the immersion well included with the controller. If the boiler tapping is greater than 1/2 in. (13 mm), use a reduction fitting to adapt the boiler opening to the 1/2 in. (13 mm) threads that are standard with the well or fitting. Fittings with 3/4 in. (19 mm) threads are also available.

4.Fill the system. Make sure that the well is screwed in

tightly enough to prevent leakage. Do not use the case as a handle to tighten the well after the controller is secured to the well.

To install the controller:

1.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. 6).

2.Insert the sensing element into the immersion well.

3.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. The sensing bulb must bottom in the well.

NOTE: Some models include up to 3 in. (76 mm) extra capil- lary tubing inside the case. In these models, pull out the extra tubing, if needed.

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