Install Instructions

ManualsBrandsResideo ManualsAquastats & WellsHigh & Low Limit Aquastat, 10°F Fixed, 10-25°F Differential

Table Of Contents

® U.S. Registered Trademark

INSTALLATION INSTRUCTIONS

95- 6701- 5

L6081A

Aquastat® Controller

APPLICATION

The L6081A is a triple function controller; it is used as a

high limit, low limit, and circulator control. This controller

is designed to replace the controls listed in Table 1.

When replacing some of these controls, only 1 or 2 of the

L6081A switching functions may be needed. Refer to Fig.

2 to determine which terminals are used in a given

application.

Table 1. Controls L6081A Replaces.

All require a 124904 Well Adapter to fit L6081A case to well (order separately, see form 68-0040, Wells and Fittings

for Temperature Controllers).

Well for L6081A must be added when replacing these models.

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

Explosion Hazard.

Can cause serious injury, death or property

damage.

Use this product only in systems with pressure

relief valves.

WARNING

Electrical Shock Hazard.

Can cause serious injury or death.

Disconnect power supply before installation to

prevent electrical shock or equipment damage.

NOTE: If new immersion well is needed, refer to form

68-0040 Wells and Fittings for Temperature

Controllers for ordering information.

Mounting

Follow the mounting system manufacturer instructions if

available; otherwise, proceed as follows:

1. Turn off power and drain the system if necessary.

2. Remove old control.

3. loosen the captive cover mounting screw on the

L6081A and pull off the cover.

Honeywell General Controls

Mercoid

Penn

White Rodgers

L401A

L4010B

L4062A

L4062B

L4081A,B

L6062A

L6081A,C

L52F

L52G

L52H

L52J

L52K

L52L

480

DA-36-153

443AT

4432

447G 4432X

4420 4433

4420X 4433X

4422 4436

4422X 4437

11A61

11C61

1131

1135

11C30

1115

11C31

Summary of content (4 pages)

PAGE 1
L6081A Aquastat® Controller INSTALLATION INSTRUCTIONS APPLICATION The L6081A is a triple function controller; it is used as a high limit, low limit, and circulator control. This controller is designed to replace the controls listed in Table 1. When replacing some of these controls, only 1 or 2 of the L6081A switching functions may be needed. Refer to Fig. 2 to determine which terminals are used in a given application. Table 1. Controls L6081A Replaces.
PAGE 2
L6081A AQUASTAT® CONTROLLER 4. 5. IMPORTANT: Best thermal response is obtained with a well that snugly fits the sensing bulb. If well does not snugly fit bulb, use the heat-conductive grease. Fold the plastic bag of grease lengthwise and twist it gently. Then snip off end of bag and work the open end all the way into the well. Slowly pull out bag while squeezing it firmly to distribute grease evenly in the well. Insert bulb all the way to the bottom of the well.
PAGE 3
L6081A AQUASTAT® CONTROLLER Fig. 3 shows a typical L6081A hookup. LOW LIMIT/CIRCULATOR HIGH LIMIT NOTE: If the 128975 Field Addable Jumper (included) is used (Fig. 2 and 3), make sure that the two prongs of the jumper face the center of the controller. B 3 B 3 2 JUMPER R OPERATION AND SETTING High Limit W 1 R 1 MAKES R-B, BREAKS R-W ON TEMPERATURE FALL. 2 BREAKS ON TEMPERATURE RISE. 3 B TERMINALS ARE TAB TERMINALS.
PAGE 4
L6081A AQUASTAT® CONTROLLER 5. When all settings are made, replace the cover. WELL CLAMP SCREW STRIP GAUGE 240°F (116°C) LOW LIMIT/ CIRCULATOR DIFFERENTIAL ADJUSTMENT SWITCH BREAKS ON RISE. BURNER TURNS OFF. CIRCULATOR OPERATES ON A CALL FOR HEAT. HIGH LIMIT SETTING 10°F (6°C) DIFFERENTIAL SWITCH MAKES ON FALL. BURNER OPERATES ON A CALL FOR HEAT. LOW LIMIT SETPOINT ADJUSTMENT LOW LIMIT AND CIRCULATOR SETTING SWITCH MAKES R-W AND BREAKS R-B ON RISE. 25°F (14°C) DIFFERENTIAL.