Honeywell L6006 Installation Manual

L6006A

Aquastat® Controller

INSTALLATION INSTRUCTIONS

APPLICATION

The Honeywell SUPER TRADELINE® L6006A 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 Aquas tat® 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):

Type 120 Vac 240 Vac

Full Load 8 5.1

Locked Rotor 48 30.6

Millivoltage 0.25 to 0.25 to 12 Vdc

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 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.

69- 0235- 5

L6006A AQUASTAT® CONTROLLER

M8870A

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.

SETPOINT INDICATING WHEEL

DIFFERENTIAL ADJUSTMENT WHEEL

INSERTIO ELEMENT

ADAPTER CLAMP SCREW (2)

HEAT CONDUCTIVE

WITH VERTICAL MOUNTING OF IMMERSION WELL, ELEMENT IS ATTACHED TO BOTTOM OF CASE.

Fig. 1. Internal view of L6006A and

accompanying components.

COMPOUND

ERTICAL MOUNTING

Fig. 2. Mounting bracket placement for vertical or horizontal mounting.

69-0235—5 2

HORIZONTAL MOUNTING

M887

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