Honeywell L4008 Thermostat User Manual

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href="
L4006,7,8; L6006,7,8  
®
Aquastat Controllers  
PRODUCT DATA  
FEATURES  
FOR VERTICAL  
MOUNTING AND  
HORIZONTAL  
SENSOR  
L4006, 7, and 8 provide Spst switching for high or low  
limit or circulator control.  
L4006G includes two Spst switches that provide high  
limit and circulator control.  
INSERTION  
L4006,7; L6006,7 models are available for insertion in:  
vertical or horizontal immersion well, vertical or  
horizontal direct immersion, and surface mounting.  
L4008, L6008 include remote bulb for mounting  
controller at a location away from the sensing element.  
Totally enclosed Micro Switch™ snap-acting switches  
operate on temperature rise to set point.  
Models calibrated for high limit use are also suitable  
for low limit control if a separate high limit controller  
is used.  
Visible control point scale and external adjustment  
screw, permit easy setting.  
FOR SURFACE  
MOUNTING  
WITH REMOTE BULB  
Remote bulb models may be used to sense air  
temperature in ducts and in outside air sensing  
applications.  
GENERAL  
Aquastat® Controllers are immersion type devices for limiting  
or regulating the temperature of liquids in boilers, storage  
tanks, and other applications where temperature control is  
required.  
Contents  
General .............................................................................  
Features ...........................................................................  
Specifications ...................................................................  
Ordering Information ........................................................  
Installation ........................................................................  
1
1
2
2
8
Operation .......................................................................... 14  
Adjustments ...................................................................... 15  
Checkout .......................................................................... 17  
Material Safety Data Sheet .............................................. 18  
60-2104—10  
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L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
SPECIFICATIONS  
IMPORTANT  
NOTE: The following specifications are standard. Variances,  
available as options, are listed in Tables 1 and 2.  
The specifications given in this publication do not  
include normal manufacturing tolerances. Therefore,  
this unit may not exactly match the listed  
specifications. Also, this product is tested and  
calibrated under closely controlled conditions, and  
some minor differences in performance can be  
expected if those conditions are changed.  
Electrical Ratings (A):  
Models with 2° F (1° C) fixed differential:  
120 Vac  
240 Vac  
Full Load  
2.6  
1.3  
7.8  
Locked Rotor  
15.6  
®
SUPER TRADELINE /TRADELINE MODELS  
SUPER TRADELINE controls offer features not available on  
TRADELINE or standard models, and are designed to replace  
a wide range of Honeywell and competitive controls.  
Models with 5° F (3° C) fixed differential or 5° F to 30° F  
(3° C to 17° C) adjustable differential:  
1
10/120 Vac 200/240 Vac  
277 Vaca  
4.2  
25.2  
TRADELINE models are selected and packaged to provide  
ease of stocking, ease of handling, and maximum  
replacement value. Specifications of SUPER TRADELINE  
and TRADELINE controls are the same as those of standard  
models except as noted below.  
Full Load  
8.0  
5.1  
Locked Rotor 48.0  
30.6  
Millivoltage 0.25 at 0.25 to 12 Vdc  
L6008G only.  
a
SUPER TRADELINE Model: L6006A Aquastat Controller.  
Switching:  
L4006, L4007, L4008: Spst.  
L6006, L6007, L6008: Spdt (breaks R-B and makes R-W on  
temperature rise at setpoint).  
SUPER TRADELINE Features:  
SUPER TRADELINE package with cross reference label and  
special instructions.  
Factory-set stop at 240° F (116° C).  
Vertical or horizontal mount.  
Tube of heat-conductive compound.  
Insulation: 1-1/2 in. to 3 in. (38 mm to 76 mm).  
Pressure Rating:  
Capillary Bulb (Direct Immersion): 200 psi (1379 kPa).  
Immersion Well: 255 psi (1758 kPa).  
Sensing Bulb Material: Copper.  
TRADELINE Models: L4006A,B,E; L4008E; L6006C;  
L6008A Aquastat Controllers.  
Sensing Bulb Fill: Liquid—toluene or silicone oil.  
TRADELINE Features Available:  
TRADELINE package with cross reference label and special  
instructions.  
Sensing Bulb Dimensions: 2-7/8 in. (73 mm) long,  
3/8 in. (10 mm) diameter.  
Some TRADELINE models include immersion well.  
Factory-set stops at 180° F, 240° F, or 250° F (82° C, 116° C,  
or 121° C).  
Wiring: Screw terminals.  
Maximum Ambient Temperature: 150° F (66° C).  
Vertical or horizontal mount.  
Tube of heat-conductive compound.  
Insulation depths of 1-1/2 in. or 3 in. (38 or 76 mm).  
ORDERING INFORMATION  
®
When purchasing replacement and modernization products from your TRADELINE wholesaler or distributor, refer to the  
TRADELINE® Catalog or price sheets for complete ordering number.  
If you have additional questions, need further information, or would like to comment on our products or services, please write or  
phone:  
1
.
Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).  
Honeywell Customer Care  
2.  
1
885 Douglas Drive North  
Minneapolis, Minnesota 55422-4386  
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.  
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,  
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.  
6
0-2104—10  
2
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L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Approvals:  
Underwriters Laboratories Inc:  
1
(25)  
Remote bulb devices and well-mounted devices shipped  
without well are component recognized:  
File No. MP466, Guide No. MBPR2.  
L4006A shipped with well, L4006G, L4007A,B; L6006C for  
surface mounting, L6006B for direct immersion mounting,  
and L6007A are listed: File No. MP466, Guide No. MBPR.  
L6008G is listed: File No. E4436, Guide No. XAPX.  
Canadian Standards Association: File No. LR1620,  
Guide No. 400-E-O.  
KNOCKOUT FOR 3/4 (19 )  
5
/16  
8)  
CONDUIT ON ALL MODELS. SIMILAR  
KNOCKOUT ON BOTTOM FOR  
HORIZONTAL INSERTION AND  
REMOTE BULB MODELS.  
(
2
(51)  
3/16  
5)  
2-1/8 (54)  
(
ANSI Miswiring: Models with 1/4 in. (6.35 mm) tab terminal  
meet ANSI Appliance Miswiring Standard.  
Mounting:  
Horizontal and vertical models mount directly to an immersion  
well installed in a boiler fitting. L4006H and L6006C contain  
a bracket and clamp for surface mounting on the pipe or  
tank. Remote bulb models have three mounting holes  
in rear of case for screw mounting to a vertical surface.  
The L6006B direct immersion model also mounts directly to  
a boiler fitting.  
5
-5/8  
(
136)  
RESET  
BUTTON  
(L4006E,  
L4008E  
ONLY)  
Finish: Gray.  
1-7/8  
48)  
(
3
/4  
3
/4  
(
19)  
Dimensions:  
(19)  
Installation: (See Figures 1, 2, and 3).  
Immersion Well: (See Fig. 4).  
Boiler Fitting and Bulb: (See Fig. 5).  
ELEMENT  
FOR VERTICAL  
IMMERSION  
KNOCKOUT FOR 3/4 (19)  
CONDUIT ON VERTICAL  
INSERTION MODELS ONLY  
1
1/16  
(18)  
ELEMENT FOR HORIZONTAL IMMERSION  
M8957A  
Accessories and Parts:  
1
37536A Scale Lock Assembly: Includes one 137536-767  
Scale Lock and one 80844C-767 Screw, No. 3-48 x 3/16  
Fig. 1. Approximate case installation dimensions  
in inches (mm) for direct insertion models.  
(
5 mm).  
Q615A1004 Weatherproof Enclosure (for remote bulb devices  
only).  
ALTERNATE POSITION  
OF SENSING ELEMENT  
CAPILLARY  
107408 Heat-Conductive Compound (4-oz. can).  
104488 Spring Clip (stainless steel).  
124904 Well Adapter.  
Immersion Well Assemblies and Compression Fittings:  
See form no. 68-0040, Wells and Fittings for Temperature  
Controllers, for list and ordering information.  
4-3/16  
(106)  
MOUNTING  
HOLE FOR  
3
/16 IN. (5 MM)  
SCREW (3)  
1
3/64  
5) (3)  
(
1
5/16  
24)  
(
3
/8 (10)  
1-1/4  
32)  
(
ALTERNATE POSITION  
OF SENSING ELEMENT  
SENSING  
ELEMENT  
CAPILLARY  
CAPILLARY  
M8823  
Fig. 2. Approximate installation dimensions  
in inches (mm) for remote bulb models. Other  
dimensions are the same as Fig. 1.  
3
60-2104—10  
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L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
1
/2 — 14 IN. NPT  
7
/8 IN. (22 MM)  
STANDARD  
7
/16  
KNOCKOUT (2)  
(
11)  
M8789A  
1
-1/2 (38)  
3 (76)  
1
25)  
(
Fig. 4. Approximate immersion well dimensions in inches  
(mm) for all models except L4006C and L6006B.  
C
L
1
/2 OR 3/4 — 14 IN. NPT  
3
/8  
(
10)  
5
-5/8  
(
136)  
1-5/16 (33)  
3 (76)  
M8799A  
Fig. 5. Approximate boiler fitting and bulb dimensions  
in inches (mm) for L4006C and L6006B.  
2
(51)  
2
(51)  
2
-3/4 (70)  
M8958A  
Fig. 3. Approximate installation dimensions  
in inches (mm) for surface mount models.  
6
0-2104—10  
4
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L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Standard Models:  
L4006,A,B,C,E,G; L4007,A,B; L4008A,B.E; L6006A,B,C; L6007A, L6008,A,G,H  
Table 1. L4006, L4007, L4008 Controller (SPST Switching) Specifications.  
Midscale  
Differential  
°F (°C)  
Switching On  
Temperature  
Rise  
Range  
°F (°C)  
Model  
Application  
Insertiona  
Available Options  
L4006A  
High or low 40° F to 180° F  
2° F or 5° F fixed Horizontal  
(1° C or 3° C)  
or  
Breaks  
TRADELINE models  
available.  
NPT brass spud 1/2 in. or  
3/4 in.  
(13 mm to 19 mm)  
Special capillary assembly.  
Insertion 3-3/8 in. or  
limit  
(4° C to 82° C)  
or  
1
(
00° F to 240° F 5° F to 30° F  
38° C to 116° C) adjustable  
3° C to 17° C)  
(
5
in. (86 or 127 mm)  
Celsius scale markings.  
Factory-set stops at 160°,  
1
2
1
80°, 185°, 200°, 220°, or  
30° F (71°, 82°, 85°, 93°,  
04°, or 110° C).  
Insulation depths of  
-1/2 in. , 3 in. or 4 in.  
38 mm, 76 mm, or  
02 mm).  
1
(
1
Screw and mounting  
brackets.  
Plastic tubing over well.  
Modified dial with stop.  
Special cover and knobs.  
With ground screw.  
L4006B  
Circulator  
100° F to 240° F 5° F (3° C) fixed Horizontal  
38° C to 116° C) or 5° F to 30° F  
3° C to 17° C)  
Makes  
TRADELINE model  
available.  
Insulation depth 1-1/2 in. or  
3 in.  
(
(
adjustable  
(
38 mm or 76 mm).  
NPT brass spud 3/4 in.  
19 mm)  
(
Screw in front of case on  
dial suitable for  
®
Powerpile control.  
Factory-set stop at  
240° F (116° C).  
L4006C  
High or low 65° F to 200° F  
3-1/2° F (2° C)  
Horizontal  
direct  
Breaks  
TRADELINE model  
available.  
limit  
(18° C to 93° C) fixed  
immersion  
Less cover.  
Capillary 10 in.  
(
254 mm).  
NPT brass spud 3/4 in.  
19 mm).  
(
L4006Eb  
High limit  
130° F to 290° F Manual reset  
Horizontal or Breaks  
vertical  
TRADELINE model  
available.  
Insulation depth  
(54° C to 141° C)  
1
-1/2 in. or 3 in.  
(38 or 76 mm).  
NPT brass spud 1/2 in. (13  
mm)  
Factory-set stop at  
250° F (121° C).  
Capillary 8 in. (203 mm).  
a
Some models include copper well or fitting; specify when ordering. Also specify boiler tapping size 1/2 or 3/4 in.  
13 to 19 mm) NPT and insulation depth.  
(
b
Manual reset (trip-free) switch breaks circuit and locks out when controlled medium reaches setpoint. Controlled temperature  
must drop 20° F (11° C) below setpoint before contacts can be manually reset.  
5
60-2104—10  
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L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Table 1. L4006, L4007, L4008 Controller (SPST Switching) Specifications. (Cont.)  
Midscale  
Differential  
°F (°C)  
Switching On  
Temperature  
Rise  
Range  
°F (°C)  
Model  
Application  
Insertiona  
Available Options  
L4006G  
High limit  
and  
circulator  
control  
100° F to 200° F 10° F (6° C) fixed Horizontal  
(38° C to 93° C)  
Two switches  
break  
simultaneously  
External adjustment knob.  
Insulation depth 4 in.  
(102 mm).  
Factory-set stop at  
1
60° F (71° C).  
Celsius scale markings.  
Without well.  
L4007A  
High or low 100° F to 240° F 2° F or 5° F  
Horizontal or Breaks  
vertical  
Insulation depth  
1-1/2 in. or 3 in.  
(38 mm or 76 mm).  
limit  
(38° C to 116° C) (1° C or 3° C)  
fixed,  
5
° F to 30° F  
3° C to 17° C)  
adjustable  
(
L4007B  
L4008A  
Circulator  
100° F to 240° F 5° F (3° C) fixed Vertical  
38° C to 116° C) or  
° F to 30° F  
3° C to 17° C)  
Makes  
Celsius scale markings.  
(
5
(
adjustable  
High or low 100° F to 240° F 5° F (3° C) fixed, Remote bulb Breaks  
limit  
Remote capillary  
5-1/2 ft (1.7 m),  
8-1/2 ft (2.6 m) or  
10 ft (3.0 m).  
Factory-set scale stops at  
(38° C to 116° C) 5° F to 30° F  
or (3° C to 17° C)  
30° F to 270° F adjustable  
54° C to 132° C)  
direct  
immersion  
1
(
1
20°, 170°, or 200° F (49°,  
77°, or 93° C)  
Celsius scale markings.  
Front cover screw.  
L4008B  
L4008Eb  
a
Circulator  
High limit  
100° F to 240° F 5° F (3° C) fixed Remote bulb Makes  
Capillary 5-1/2 ft  
(1.7 m).  
(
38° C to 116° C) or  
° F to 30° F  
3° C to 17° C)  
direct  
immersion  
5
(
adjustable  
40° F to 80° F  
Manual reset  
Remote bulb Breaks  
Factory-set scale stops at  
140°, 200°, or 250° F (60°,  
93°, or 121° C).  
(
1
(
4° C to 27° C) or  
30° F to 270° F  
54° C to 132° C)  
Capillary 5-1/2 ft or  
20 ft (1.7m or 6.1 m).  
Some models include copper well or fitting; specify when ordering. Also specify boiler tapping size 1/2 or 3/4 in.  
13 to 19 mm) NPT and insulation depth.  
(
b
Manual reset (trip-free) switch breaks circuit and locks out when controlled medium reaches setpoint. Controlled temperature  
must drop 20° F (11° C) below setpoint before contacts can be manually reset.  
6
0-2104—10  
6
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L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Table 2. L6006, L6007, L6008 Controller (SPDT Switching) Specifications.  
Midscale  
Differential  
°F (°C)  
Range  
°F (°C)  
Model  
L6006A  
Application  
Insertiona  
Available Options  
Circulator and low 100° F to 240° F  
5° F (3° C) fixed Horizontal  
or  
SUPER TRADELINE model  
available.  
limit or high limit  
(38° C to 116° C)  
or  
5° F to 30° F  
(3° C to 17° C)  
adjustable  
Modified dial with stop.  
NPT brass spud 1/2 in. or 3/4  
in. (13 mm to 19 mm)  
3-3/8 in. (86 mm) insertion.  
Without well.  
Adapter for horizontal or  
vertical mount.  
1
00° F to 290° F  
38° C to 143° C)  
(
Insulation depth 1-1/2 in. or  
3
in. (38 mm or 76 mm).  
L6006B  
L6006C  
Circulator and low 100° F to 240° F  
limit or high limit (38° C to 116° C)  
5° F (3° C) fixed Horizontal  
or  
Direct immersion.  
Insulation depth 1-1/2 in.  
(38 mm).  
3/4 in. (19 mm ) brass  
compression fitting.  
5
° F to 30° F  
3° C to 17° C)  
adjustable, or  
0° F (17° C)  
(
3
fixed.  
Circulator, low limit, 65° F to 200° F  
and high limit (18° C to 93° C)  
5° F (3° C) fixed Horizontal or  
TRADELINE model available.  
Strap-on, surface mount.  
or  
° F to 30° F  
3° C to 17° C)  
vertical surface  
mounted  
5
(
adjustable  
L6007A  
L6008A  
Circulator and low 40° F to 180° F  
limit or high limit (4° C to 82° C)  
Fixed  
Horizontal or  
vertical  
Insulation depth 1-1/2 in. or 3  
in. (38 mm or 76 mm).  
Circulator and low 100° F to 240° F  
5° F (3° C) fixed Remote bulb  
or  
5° F to 30° F  
(3° C to 17° C)  
TRADELINE models  
available.  
Modified dial with stop.  
Capillary 5-1/2 ft (1.7 m).  
limit cooling  
(38° C to 116° C)  
or  
-30° F to +70° F  
(
-35° C to +21° C) adjustable  
3-1/2° F (2° C) Remote bulb  
Controller to cycle (54° C to 110° C) or fixed  
L6008G  
L6008H  
Two-stage Aquastat 130° F to 230° F  
Capillary 6 ft (1.8 m).  
Adjustable interstage  
differential; 5° F to 10° F  
(2° C to 6° C).  
two-stage gas  
valve.  
60° F to 160° F (16°  
C to 71° C)  
Low fire Aquastat  
Controller  
150° F to 200° F  
(66° C to 93° C)  
15° F (8° C)  
fixed  
Remote bulb  
Capillary 33 in. (0.8 m).  
(maximum  
temperature  
of element  
405° F  
(
207° C))  
a
Some models include copper well or fitting; specify when ordering. Also specify boiler tapping size 1/2 or 3/4 in. NPT and  
insulation depth.  
7
60-2104—10  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
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  
When Installing This Product…  
1
.
.
Read these instructions carefully. Failure to follow them  
could damage the product or cause a hazardous  
condition.  
Check the ratings given in the instructions and on the  
product to make sure the product is suitable for your  
application.  
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.  
2
3
.
.
Installer must be a trained, experienced service  
technician.  
After installation is complete, check product operation as  
provided in these instructions.  
Mounting Immersion Well and Direct  
Immersion Models (L4006A,B,C,E,G;  
L4007A,B; L6006A,B; L6007A)  
4
WARNING  
Can cause serious injury, death or property  
damage.  
This product is intended for use only in systems with a  
pressure relief valve.  
Installing Immersion Well Models  
Explosion Hazard.  
(
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:  
WARNING  
Can cause serious injury or death.  
Disconnect power supply before beginning installation  
to prevent electrical shock or equipment damage.  
1.  
If the system is filled, drain the system to a point below  
the boiler tapping.  
Electrical Shock Hazard.  
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.  
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.  
CAUTION  
4.  
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.  
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).  
Insert the sensing element into the immersion well.  
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.  
2. Do not secure draw nut so tightly that retainer clamp  
can collapse tubing.  
2.  
.
IMPORTANT  
3
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.  
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.  
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.  
6
0-2104—10  
8
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
2
.
.
Insert the immersion sensing bulb through the bulb  
compression fitting. Adjust the adapter clamp so that the  
clamp fits over the groove at the opening of the bulb  
compression fitting.  
Tighten the adapter clamp screws so that the Aquastat  
Controller is firmly attached to the bulb compression  
fitting.  
SETPOINT  
INDICATING DIAL  
3
DIFFERENTIAL  
ADJUSTMENT  
WHEEL  
Mounting Remote Bulb Models  
ADAPTER CLAMP  
SCREWS  
(
L4008A,B,E; L6008A,G,H)  
INSERTION  
1
The remote temperature-sensing bulb can either be installed in  
an immersion well (See Fig. 8) that extends into the boiler or  
tank, or it can be directly immersed in the controlled medium  
ELEMENT  
2
(See Fig. 9). For installations that do not use a well, secure the  
remote bulb with a bulb compression fitting (See Fig. 10), or  
capillary compression fitting. (See Fig. 11).  
1
WITH VERTICAL MOUNTING OF  
IMMERSION WELL, ELEMENT IS  
ATTACHED TO BOTTOM OF THE  
CASE.  
Order well, well adapter, bulb compression fitting or capillary  
compression fitting separately. See form no. 68-0040, Wells  
and Fittings for Temperature Controllers. If used, well must  
snugly fit sensing bulb for the best thermal response. Insert  
bulb until it rests against the bottom of the well. Hold it there  
while tightening the tubing clamp. (See Fig. 8).  
2
SELECT MODELS HAVE SCREW  
TERMINAL, NOT TAB TERMINAL.  
M8806A  
Fig. 6. Internal view of L6006A.  
Installing Direct Immersion Models  
L4006C, L6006B)  
Models that provide for direct immersion of the sensing  
element into the boiler include a bulb compression fitting  
assembly instead of an immersion well. Install the fitting in the  
boiler tapping as follows:  
The boiler manufacturer usually provides a tapping for the  
insertion of the Aquastat Controller sensing element. This  
tapping should be located at a point where typical water  
temperature can be measured. Never locate the bulb or  
protecting immersion well close to a hot or cold water inlet or a  
steam coil.  
(
1.  
Be sure the sealing washer is in place as shown in  
Fig. 7. Make sure that the spud of the bulb compression  
fitting is screwed in tightly enough to prevent leaking.  
If the system is filled, drain system to a point below the boiler  
tapping, or wherever the sensing bulb is to be installed.  
The bulb can also be installed in the supply line of an indirect  
water heater, in the direct water heater itself, or in the feed  
riser, about 6 in. (153 mm) above the boiler. If the riser is  
valved, the bulb can be installed between the boiler and the  
valve.  
ADAPTER  
CLAMP  
NOTE: Do not make sharp bends or kinks in the capillary.  
Make bends no sharper than 1 in. (25 mm) radius.  
After installing the controller, carefully coil the excess capillary  
at the bottom of the controller case.  
SPLIT SLEEVE  
ADAPTER CLAMPS  
FIT OVER  
GROOVE  
Mounting Immersion Well  
1.  
.
Screw the well into the boiler, tank, or pipe tapping.  
Insert the bulb in the well, pushing the tubing until the  
bulb bottoms in the well.  
2
3
.
.
Attach the retainer clamp to the end of the well spud.  
Loosen the draw nut and spread the jaws of the clamp  
with the screwdriver if necessary. (See Fig. 8).  
With the retainer clamp attached to the well spud (be  
sure the jaws of the clamp hook over the ridge at the end  
of the spud, as shown at points A in Fig. 8), adjust the  
tubing to fit through the retainer clamp groove, as shown  
at point B in Fig. 8.  
SEALING WASHER  
4
BULB COMPRESSION  
FITTING  
M8774A  
SENSING BULB  
5.  
Tighten the draw nut so that the retainer clamp is firmly  
attached to the well spud and the tubing is held securely  
in place.  
Fig. 7. Direct immersion model  
with fitting partially removed.  
9
60-2104—10  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
CLAMP B  
CLAMP A  
CLAMP SCREWS (2)  
BULB  
SEALING  
BULB  
COMPRESSION  
FITTING  
WASHER  
JAWS  
SPREAD JAWS  
TO FIT OVER  
RIDGE ON  
WELL SPUD  
INSERTION LENGTH  
APPROX. 3-3/16 IN. (81 MM)  
SCREWDRIVER  
SPLIT SLEEVE  
M8815A  
MOUNTING CLAMP  
Fig. 10. Bulb compression fitting.  
Use with L4006A,B; L6008A.  
DRAW  
NUT  
MOUNTING  
CLAMP  
SPUD  
WELL  
B
BULB  
5.  
Place clamps A and B on the assembly so that the  
sleeve is drawn into the fitting when the screws are  
tightened.  
TUBING  
M8777A  
NOTE: Make sure that the nub on clamp A engages the  
space between the sleeve and the clamp.  
A
6.  
Tighten the clamp screws evenly.  
Fig. 8. Immersion well fitting.  
Mounting With Capillary Compression Fitting  
NOTCHES FOR  
CAPILLARY  
TUBE (4)  
27-1/2 IN.  
(70 MM)  
SENSOR  
1.  
.
Screw the fitting into the boiler or pipe tapping.  
Place the packing nut on the tubing.  
2
7/8 IN. (22 MM)  
3. Slide the bulb completely through the fitting.  
DIAMETER  
KNOCKOUT  
BOTH ENDS  
4.  
Place the composition disk and four slotted brass  
washers on the tubing in the order shown in Fig. 11. Turn  
the brass washers so the slots are 180 degrees apart.  
IMMERSION  
BULB  
1
80  
BOILER PLUG  
1
CAPILLARY TUBING  
COMPOSITION DISK  
LEFT SNAP  
SWITCH  
(
SLOTTED)  
(
NO. 2)  
1
0 FT. (3.0 M)  
CAPILLARY  
TUBE  
RIGHT SNAP  
SWITCH (NO. 1)  
MOUNTING  
HOLES (3)  
M4673A  
EXAMPLE OF SLOTTED WASHERS  
ASSEMBLED  
1
SELECT MODELS HAVE SIX TERMINALS.  
IN PAIRS:  
PACKING NUT  
M8816A  
Fig. 9. Internal view of L4008L or L6008G.  
Fig. 11. Capillary compression fitting. Use with L4008.  
Mounting With Bulb Compression Fitting  
5
.
Slide the seal assembly into the fitting and tighten the  
packing nut.  
1.  
2.  
3.  
4.  
Screw the fitting into the boiler or pipe tapping.  
Slide the sealing washer onto the bulb.  
Insert the bulb into the fitting until the bulb bottoms.  
Slide the split sleeve into the fitting. (See Fig. 10).  
Duct Mounting  
1.  
Drill a 3/4 in. (19 mm) hole in the duct wall large enough  
to admit the sensing bulb into the holder.  
2.  
Using the holder as a template, mark and drill holes for  
the bulb holder mounting screws. (See Fig. 12).  
6
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10  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Mounting Remote Bulb Models  
For Outdoor Air Sensing  
These models have a 5 ft (1.5 m) capillary that establishes the  
maximum distance between the case and the outdoor  
mounting.  
Install the bulb on the outside of the building in the shield  
provided (See Fig. 15) where it can be exposed to  
representative air temperature, but not to direct sunlight. Mount  
the bulb high enough so that accumulated snow, leaves, or  
other debris cannot obstruct circulation of air around it, and  
where children cannot reach it. Avoid vents from the building.  
M8970A  
Fig. 12. Bulb support.  
Break the holder to the desired length. (See Fig. 13).  
3.  
Install the case at the indoor location selected, fastening the  
screws through holes in the back of the case. Bring out the  
bulb and tubing through a 3/4 in. (19 mm) hole in the outside  
wall, avoiding sharp bends or kinks. Leave excess tubing  
coiled near the case. Do not make sharp bends near the case  
or bulb.  
NOTE: The holder must be long enough to hold the sensing  
bulb in freely circulating air away from the duct wall.  
Neatly coil the excess capillary at the controller case  
or at the bulb holder.  
Slip the bulb through the supports in the shield. Pinch the split  
supporting clip until it holds the bulb firmly in position. If the  
seal-off tube protrudes from under the shield, bend it under as  
shown in Fig. 15.  
Hold the shield over the mounting position and form a small-  
radius bend in the tubing. Place the split plug around the tubing  
and move the shield into the mounting location as a unit. Push  
the split plug into the hole until it is wedged securely in place.  
Fasten the shield in place on the wall with the screws provided.  
M7216A  
NOTE: If the tubing is properly shaped and the split plug  
installed as directed, the shield will cover the split  
plug, and the hole in the wall will be hidden from sight.  
Fig. 13. Removing excess bulb support.  
SPLIT WOOD PLUG  
3
/4 IN.  
INSERT BULB  
IN CLAMP  
(
19 MM)  
HOLE IN  
WALL  
PINCH TOP EDGES OF  
HOLDER TOGETHER  
AT EACH SEGMENT  
OUTDOOR  
SENSING  
BULB  
CAPILLARY  
TUBING  
SENSING  
BULB  
CAPILLARY  
TUBING  
SEAL-OFF  
TUBE  
BE SURE EXTENSION TUBE IS  
UNDER BULB HOLDER, AS SHOWN  
M7217A  
3
4886A  
BULB  
Fig. 14. Securing capillary in bulb holder.  
SHIELD  
M8800A  
4
.
Place the capillary in the bulb holder channel. Pinch the  
top edges of the holder together at each segment. (See  
Fig. 14).  
Insert the bulb holder into the controlled area through the  
hole prepared in step 1.  
Fasten the bulb holder to the duct wall with the screws  
provided.  
Fig. 15. Mounting bulb in shield outside building.  
Mounting L6008A Remote Bulb Controller  
Mounting with Guard Bracket  
5
.
.
6
Mount the bulb in the guard bracket as shown in Fig. 16.  
Locate the bulb and bracket combination, in freely circulating  
air, in the controlled area. With screws provided, fasten the  
bracket in place.  
11  
60-2104—10  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Mounting on Suction Line  
Wiring  
1.  
In cooling units with more than one suction line, place  
the sensing bulb on the common line.  
Make certain the bulb is at least 2 ft (0.6 m) from the  
point at which the suction line leaves the cooler. This  
prevents the outside temperature from being transmitted  
to the remote bulb through the copper tubing of the  
suction line.  
Place the remote sensing bulb on the side of the  
horizontal suction line between the coil and trap (not on  
the trap).  
Disconnect power supply before beginning installation to  
prevent electrical shock or equipment damage.  
2
.
All wiring must comply with local codes and ordinances  
regarding wire size, type of insulation, enclosure, etc.  
Figures 19 through 28 show typical hookups.  
3.  
When wiring a switch equipped with a 1/4 in. (19 mm) tab  
2
terminal connector, use 18 AWG to 22 AWG (0.8 mm to  
2
4
.
.
Attach the sensing bulb to the suction line with clips or  
straps. (See Fig. 17).  
Coil the excess length of capillary tubing near the  
L6008A case.  
0
.3 mm ) gauge wire with an AMP Inc. part no. 2-520129-2  
fully insulated flag receptable connector or equivalent.  
5
ENCLOSED  
SENSING BULB  
SUPPORTING  
CLIP  
PIPE  
1
2 IN.  
ADJUSTABLE  
PIPE  
STRAP  
MOUNTING  
BRACKET  
SENSOR  
M8791A  
Fig. 16. Securing remote bulb in clip  
when mounting with guard bracket.  
SUCTION LINE  
LEAVES  
COOLER  
COOLER  
WALL  
®
SUCTION  
LINE  
AQUASTAT  
CONTROLLER CASE  
COIL  
M8771B  
L6008A  
CIRCULATOR  
LOW LIMIT  
CONTROLLER  
Fig. 18. Mounting L4006H or L6006C directly on surface.  
2
4 VOLT  
CAPILLARY  
REMOTE  
BULB  
BULB CLIPS  
TO SUCTION LINE  
M8805A  
THERMOSTAT  
LOW WATER  
CUTOFF  
PRESSURE  
CONTROL  
L1  
Fig. 17. Attaching remote bulb to horizontal suction line.  
(
HOT)  
L2  
1
Mounting Surface Mount Models  
2
L4006A OR  
L4007A  
The L4006H and L6006C are designed for surface mounting  
on piping or tanks. Mount the controller directly on the tank  
surface using the adjustable mounting bracket as shown in  
Fig. 18. The controller can be mounted in any position.  
LOW LIMIT  
AQUASTAT  
GAS  
VALVE  
PILOTSTAT  
CONTROL  
®
CONTROLLER  
1
2
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
When mounting the L4006H or L6006C on piping, the pipe  
should be 1 in. (25 mm) diameter or larger for accurate  
temperature sensing. Remove any insulation from the pipe.  
Thoroughly scrape off all scale, rust, or paint. Mount the  
controller using adjustable bracket provided. Turn on power.  
USE L4006E FOR MANUAL RESET.  
M2856B  
Fig. 19. Typical gas-fired system with domestic hot water.  
6
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12  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
PROTECTORELAY  
CONTROL  
24 VOLT  
THERMOSTAT  
1
L1  
L4006A OR L4007A  
HIGH LIMIT  
1
(
HOT)  
RA832A  
L1  
(HOT)  
L2  
®
L4006A OR L4007A HIGH  
LIMIT CONTROLLER  
1
SWITCHING RELAY  
AQUASTAT  
CONTROLLER  
2
4
L2  
T
X
T
2
1
1
2
2
4 VOLT  
THERMOSTAT  
IGNITION  
IGNITION  
3
T
T
4
3
X
4
CIRCULATOR  
L4006B OR L4007B  
CIRCULATOR  
AQUASTAT  
BURNER  
MOTOR  
OIL VALVE  
(IF USED)  
®
CONTROLLER  
BURNER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
T
T
M1054B  
2
L4006A OR L4007A LOW LIMIT  
®
AQUASTAT CONTROLLER  
Fig. 20. Typical oil-fired gravity system.  
PROTECTORELAY  
CONTROL  
1
2
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
R
L1  
HOT)  
(
1
USE L4006E FOR MANUAL RESET.  
M2855B  
B
L2  
INDICATING  
LIGHT  
COOLING  
EQUIPMENT  
Fig. 23. Typical oil-fired hydronic heating system that  
provides year-round domestic hot water using RA832A.  
W
L6008A  
CIRCULATOR AND  
LOW LIMIT  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
CONTROLLER  
M8780A  
2
4V THERMOSTAT  
BURNER MOTOR  
L4008A OR E  
HIGH LIMIT  
RA817A  
PROTECTORELAY  
Fig. 21. L6008A used to control cooling  
equipment and indicating light.  
CONTROLLER CONTROL  
T
T
3
RA89A RELAY  
PROTECTORELAY  
2
24V  
THERMOSTAT  
CONTROL  
HIGH LIMIT  
2
1
3
4
1
CONTROLLER  
1
2
2
4
CIRCULATOR  
AND LOW  
IGNITION  
2
W
LIMIT CONTROL  
1
IGNITION  
TRANSFORMER  
CIRCULATOR  
B
R
L1  
L2  
4
3
SWITCHING RELAY  
W
(HOT)  
L6008A CIRCULATOR  
LOW LIMIT CONTROLLER  
R
1
2
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
T
T
B
3
4
L1  
CIRCULATOR  
(
HOT)  
SELECT MODELS HAVE 1/4 IN. (6) TAB TERMINAL FOR W TERMINAL.  
M8785B  
BURNER  
MOTOR  
L2  
LINE VOLTAGE  
LOW VOLTAGE  
1
Fig. 24. Typical connection diagram for an oil-fired,  
hydronic heating system that provides year-round  
domestic hot water using RA817A.  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
2
3
4
L6006C USED AS HIGH LIMIT CONTROL.  
L6006C USED AS AN OPERATING CONTROL.  
R-B OPENS, R-W CLOSES ON TEMPERATURE RISE.  
M8960B  
Fig. 22. Typical oil-fired hydronic  
system with domestic hot water.  
13  
60-2104—10  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
L4006  
HIGH LIMIT  
L1  
(HOT) L2  
1
SERIES 80  
THERMOSTAT  
CONTROLLER  
MILLIVOLTAGE  
THERMOSTAT  
L6006  
CIRCULATOR  
AND  
LOW LIMIT  
CONTROL  
R
L1  
3
L2  
T
T
2
MILLIVOLTAGE  
VALVE OPERATOR  
W
B
SAFETY  
SHUTOFF  
PILOTSTAT¨  
POWER UNIT  
B
R
OPERATOR PILOT  
COIL  
BURNER  
M1156A  
L8148A  
POWER UNIT COIL  
C1 C2  
B1  
B2  
Fig. 27. Typical Powerpile System wiring diagram.  
LOW VOLTAGE  
LINE VOLTAGE  
2
1
2
HEATING LOAD  
L2  
NO. 1  
1
CIRCULATOR  
L6008G  
L1  
HOT)  
(
1
2
1
W
B
W
B
HEATING LOAD  
NO. 2  
R
R
2
1
PILOTSTAT  
LINE VOLTAGE  
GAS CONTROL  
OIL BURNER RELAY  
LINE VOLTAGE  
TERMINALS  
JUMPER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
1
2
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
M8968B  
WHEN USING CIRCULATOR LOW LIMIT CONTROL,  
REMOVE L1-L2 JUMPER.  
Fig. 28. Typical oil burner installation using L4008G.  
M8783C  
Fig. 25. Typical wiring hookup using L6006 or  
L6007 with L8148A.  
OPERATION  
For proper selection of settings, follow the boiler manufacturer  
recommendations.  
LINE VOLTAGE  
CONTROL CIRCUIT  
LINE VOLT  
THERMOSTAT  
LOAD  
L4006  
L1  
HOT)  
(
High Limit Controller  
1
L2  
R-B terminals provide high limit switching function (contacts  
open at set point on temperature rise). (See Figures 30 and 31).  
R-B terminals shut off burner if water temperature exceeds high  
limit setting. Burner restarts when temperature drops to high  
limit setting, less differential.  
LOW VOLTAGE  
THERMOSTAT  
LOW VOLTAGE  
CONTROL CIRCUIT  
NOTE: On manual reset models, the reset button on the front  
of the case must be pushed in to allow the burner to  
operate after a high limit shutdown.  
L4006  
LOAD  
1
K
L1  
(
HOT)  
1
ELECTRIC  
HEAT RELAY  
L2  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
M1155A  
Fig. 26. Typical systems with 120 volt  
electric heat primaries.  
6
0-2104—10  
14  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Low Limit Controller  
R-B terminals provide low limit switching function (contacts  
open at set point on temperature rise). Maintains minimum  
boiler temperature for domestic hot water. Turns on boiler at  
temperature setting, less differential.  
BREAKS R-B  
MAKES R-W  
ON RISE  
LEFT SWITCH  
DIFFERENTIAL  
TEMPERATURE  
RISE  
Circulator Controller  
2
BREAKS R-W  
MAKES R-B  
ON FALL  
R-W terminals provide circulation control function (contacts  
close at set point on temperature rise). Prevents circulation of  
water that is below the desired heating temperature. Breaks  
circulator circuit on temperature drop below setting less  
differential; remakes on rise to setting.  
INTERSTAGE  
DIFFERENTIAL  
1
BREAKS R-B  
MAKES R-W  
ON RISE  
L6008G Adjustable Interstage Differential  
SETPOINT  
RIGHT SWITCH  
DIFFERENTIAL  
(
ADJUSTABLE)  
When the temperature at the sensing element rises above the  
set point of the controller, the switch on the right makes R-W. If  
the temperature continues to rise through the preselected  
interstage differential of the controller, the switch on the left  
makes R-W.  
2
BREAKS R-W  
MAKES R-B  
ON FALL  
Conversely, on a temperature fall, the switch on the left makes  
R-B, providing first step switching. If the temperature continues  
to fall, the switch on the right makes R-B to provide sequencing  
of equipment.  
1
2
DIFFERENCE BETWEEN THE TEMPERATURES AT WHICH THE  
TWO SWITCHES MAKE R-W. ADJUSTABLE FROM 3°F TO 10°F  
(
(
1.7°C TO 5.6°C) ON STANDARD MODELS, OR FROM 3.6°F TO 12°F  
2.0°C TO 6.7°C); 55°F TO 175°F (13°C TO 79°C) MODELS.  
ADJUSTMENTS  
TWO SPDT SWITCHES OPERATE IN SEQUENCE. EACH SWITCH  
DIFFERENTIAL IS FIXED AT APPROXIMATELY 3°F (1.7°C) ON  
STANDARD MODELS, OR AT 3.6°F (2.0°C); 55°F TO 175°F (13°C TO  
7
9°C) MODELS.  
M2999B  
Adjusting Differential  
Set the differential to correspond with the boiler manufacturer  
recommendations. To adjust models with adjustable  
Fig. 29. Operation of L6008G.  
differential, rotate the wheel on the back of the snap switch,  
(
See Fig. 32), until the desired reading is aligned with the  
V notch in the frame. The wheel provides an adjustment from  
° F to 30° F (3° C to 17° C). Replace the cover on the  
5
Aquastat Controller.  
BREAKS  
ON RISE  
LEFT SWITCH  
DIFFERENTIAL  
TEMPERATURE  
RISE  
2
MAKES  
ON FALL  
INTERSTAGE  
DIFFERENTIAL  
1
BREAKS  
ON RISE  
SETPOINT  
(
ADJUSTABLE)  
RIGHT SWITCH  
DIFFERENTIAL  
DIFFERENTIAL  
WHEEL  
2
MAKES  
ON FALL  
NOTCH IN  
FRAME  
1
SNAP  
1
2
DIFFERENCE BETWEEN THE TEMPERATURES AT WHICH  
THE TWO SWITCHES BREAK ON TEMPERATURE RISE.  
SWITCH  
SWITCHES OPERATE IN SEQUENCE. RIGHT SWITCH  
1
SELECT MODELS HAVE A SCREW TERMINAL INSTEAD  
OF TAB TERMINAL.  
FIRST-ON TEMPERATURE RISE.  
M4671A  
M8969  
Fig. 30. Operation of L4008L.  
Fig. 31. Adjusting the differential.  
15  
60-2104—10  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Adjust the control point to correspond with the boiler  
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.  
Table 3. Temperature Adjustments.  
Difference Between Desired  
Room Temperature and  
Case Temperature  
Reduce Dial Setting  
°F °C  
Adjusting L6008G Interstage Differential  
°F  
°C  
The L6008G Controller has an adjustable interstage  
0
5
1
1
2
0
0
0.5  
1
differential. The set point adjustment knob determines the  
temperature at which the right switch operates. The left switch  
can be adjusted to operate from 3° F to 10° F (1.7° C to 5.6° C)  
above the point of operation of the right switch. See Figure 30  
for the operation of the L6008G. The interstage differential is  
adjusted by turning the star wheel with a narrow screwdriver  
inserted into the rectangular hole in the chassis. (See Fig. 32).  
3
3/4  
0
5
0
6
1-1/2  
2
8
1
11  
14  
17  
20  
22  
25  
28  
31  
33  
39  
45  
2-3/4  
3-1/2  
4-1/4  
5
2
25  
2
3
3
0
5
3
3
LEFT SWITCH  
RIGHT  
SWITCH  
40  
5-3/4  
6-1/2  
7
4
1
4
5
5
6
7
8
5
0
5
0
0
0
4
4
8
5
8-1/2  
10  
5
6
11-1/2  
7
STAR WHEEL (INTERSTAGE  
DIFFERENTIAL ADJUSTMENT)  
EXAMPLE:  
In the example shown in Fig. 33, the L6008A case is  
located in a room with a lower temperature than the  
controlled space. Adjusting the controlled space setting (dial  
setting) is necessary to compensate for the temperature  
difference of 35° F (20° C) between the two rooms. Table 3  
indicates that the dial setting should be lowered 5° F (3° C)  
to compensate for the 35° F (20° C) temperature difference.  
1
SELECT MODELS HAVE FOUR TERMINALS.  
M8972  
Fig. 32. Interstage differential adjustment on an L6008G.  
L6008A Location Differential Calibration  
The L6008A1093 is calibrated for applications where the bulb  
and controller case are located in the same control space.  
Manual Reset  
If the bulb and controller case are located in separate rooms,  
and if the temperature in the two rooms is different, an  
adjustment is required. Adjust the dial setting (control space  
temperature setting) to compensate for the difference in  
temperature.  
If the device includes manual reset (L4006E, L4008E), be sure  
to press the (red) reset button on the front of the case to make  
sure that the controller is not locked out on safety. When  
checking the system, adjust the limit setting low enough so the  
temperature of the controlled medium reaches the high limit  
setting. When the limit setting is reached, the Aquastat  
Controller locks out and the burner shuts down. When the  
temperature of the controlled medium drops to the high limit  
setting, less the differential, push the manual reset button to  
make the system operative again. Reset the control to the  
proper high limit setting.  
1
.
If the L6008A case is located in a room with a higher  
temperature than indicated on the dial setting, raise the  
dial setting the number of degrees listed in Table 3.  
If the L6008A case is located in a room with a lower  
temperature than indicated on the dial setting, lower the  
dial setting the number of degrees listed in Table 3.  
2.  
WALL  
REMOTE  
SENSING  
BULB  
L6008A  
CASE  
CONTROLLED  
SPACE  
ROOM  
TEMPERATURE  
TEMPERATURE  
o o  
0 F (27 C)  
8
o o  
15 F (46 C)  
1
M8790A  
Fig. 33. L6008A calibration.  
6
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16  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Check to make certain that the Aquastat Controller is properly  
installed and adjusted. Put the system into operation and  
observe the action of the controller through several cycles to  
make certain it provides proper control of the system as  
described in the OPERATION section. Make any additional  
adjustments necessary for assuring comfort requirements.  
CHECKOUT  
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.  
17  
60-2104—10  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
MATERIAL SAFETY DATA SHEET  
Manufacturer: Honeywell Inc., 1985 Douglas Drive North,  
Minneapolis, MN 55422.  
Section 1. Product And Company  
Identification  
Date Released: October 8, 1999  
Product Name: Heat Conductive Compound  
NFPA Ratings:  
MSDS ID: DS9021  
Synonyms: MS1699  
Health 0; Flammability 1; Reactivity 0; Personal Protection B  
Section 2. Composition,  
Information on Ingredients  
Product Use: Heat conductive material used to enhance  
contact and heat transfer in temperature sensor applications.  
Ingredient  
CAS Number  
64742-65-0  
Percent  
PEL  
TVL  
#
2 Lithium Complex Grease (70%):  
Mineral Oil  
Mineral Oil  
35-50  
20-25  
4-9  
mg/m3  
5 mg/m3  
5
5
64742-62-7  
68815-49-6  
mg/m3  
5 mg/m3  
Lithium Hydrostearate/Sebacate  
Complex  
Zinc Alkyldithiophosphate  
Aluminum Paste (30%):  
Aluminum, as Al  
68649-42-3  
0-2  
7429-90-5  
8052-41-3  
20-25  
10-15  
5 mg/m3  
10 mg/m3  
1
2
Aliphatic Petroleum Distillates  
900 mg/m3  
525 mg/m3  
Stearic Acid  
57-11-4  
1-2  
1-2  
Aromatic Petroleum Distillates  
64742-95-6  
mg/m3  
5 mg/m3  
5
Additional Information: Part No. 120650 (0.5 oz tube); Part No. 107408 (4 oz can); Part No. 197007 (5 gallon container). May also  
contain minute amounts of lithium and molybdenum lubricant compounds.  
Section 3. Hazard Identification  
Section 4. First Aid Measures  
Eye Contact: Flush eyes with water for 15 minutes. Remove  
any contact lenses and continue to flush. Obtain medical  
attention if irritation develops and persists.  
Acute Health Effects:  
Skin: Excessive contact may cause skin irritation and  
dermatitis.  
Skin Contact: Remove excess with cloth or paper. Wash  
thoroughly with mild soap and water. Obtain medical  
attention if irritation develops and persists.  
Eye: Direct contact with eye will cause irritation.  
Inhalation: No adverse effects are expected.  
Ingestion: Contact physician or local poison control center  
immediately.  
Ingestion: Ingestion of product may cause nausea, vomiting  
and diarrhea.  
Inhalation: Remove patient to fresh air and obtain medical  
attention if symptoms develop.  
Chronic Health Effects:  
Existing skin rash or dermatitis may be aggravated by  
repeated contact.  
Section 5. Fire Fighting Measures  
Material Flash Point: > 383° F (195° C). Will burn if exposed  
to flame.  
OSHA Hazard Classifications: None.  
Extinguishing Media: Carbon dioxide, dry chemical or foam.  
Special Fire Fighting Procedures: None.  
Carcinogenicity: Not considered to be a carcinogen by  
either OSHA, NTP, IARC, or ACGIH.  
Explosion Hazards: None. Aluminum powder can react with  
water to release flammable hydrogen gas. In this form of the  
product, this reaction is not expected.  
6
0-2104—10  
18  
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Reactivity: Hazardous polymerization will not occur.  
Incompatibilities: Strong oxidizing agents and halogens.  
Section 6. Accidental Release Measures  
Scrape up and dispose of as solid waste in accordance with  
state and federal regulations.  
Hazardous Decomposition Products: Carbon dioxide,  
carbon monoxide.  
Section 7. Handling and Storage  
Store in dry place. Keep container closed when not in use.  
Section 11. Toxicology Information.  
No data available.  
Section 8. Exposure Controls and Personal  
Protection.  
Section 12. Ecological Information  
Ventilation: No special ventilation is required when working  
with this product.  
Chemical Fate Information: Hydrocarbon components will  
biodegrade in soil; relatively persistent in water.  
Respiratory Protection: None required.  
Section 13. Disposal Consideration  
Eye Protection: Not normally required. However, use  
chemical safety goggles or faceshield if potential for eye  
contact exists, especially if material is heated.  
Dispose of as solid waste in accordance with local, state  
and federal regulations.  
Hand/Clothing Protection: Not normally required. Protective  
gloves and clothing are recommended, as material is  
difficult to remove from skin and clothing.  
Section 14. Transportation Information  
DOT Classification: Not classified as hazardous.  
Other Protective Equipment: None required.  
Section 15. Regulatory Information  
SARA Title III Supplier Notification: Include in Section  
311/312 inventory reports if amounts exceed 10,000  
pounds. Aluminum compounds are subject to the reporting  
requirements under Section 313 of Emergency Planning  
and Community Right-To-Know Act of 1986 (40 CFR 372).  
Ingredients listed in TSCA Inventory.  
Section 9. Physical and Chemical Properties  
Appearance/Odor: Aluminum color, semi-solid material,  
pleasant odor.  
Solubility in Water: Negligible.  
Specific Gravity: 0.86.  
Section 16. Other Information  
This information is furnished without warranty, expressed or  
implied, except that it is accurate to the best of our  
knowledge.  
Section 10. Stability and Reactivity  
Stability: Stable.  
19  
60-2104—10  
href="
L4006,7,8; L6006,7,8 AQUASTAT® CONTROLLERS  
Automation and Control Solutions  
Honeywell International Inc.  
985 Douglas Drive North  
Honeywell Limited-Honeywell Limitée  
1
35 Dynamic Drive  
Golden Valley, MN 55422  
customer.honeywell.com  
Toronto, Ontario M1V 4Z9  
®
©
U.S. Registered Trademark  
2006 Honeywell International Inc.  
6
0-2104—10 J.I. Rev. 12-06  

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