Instructions / Assembly

L6006 and L6007
Aquastat
®
Controllers
Installation Instructions for the Trained Service Technician.
Application
These Aquastat
®
Controllers operate in response to tem-
perature changes in hydronic heating systems. They provide
spdt switching for three-wire applications.
The L6006A,B, and L6007A combine low or high limit
and circulator control; L6006C combines circulator control
with low and high limit.
The L6006A,B are for horizontal insertion; the A model
uses an immersion well; the B model uses a capsule com-
pression fitting for direct immersion. The L6006C is for
horizontal or vertical surface mounting. The L6007A is for
horizontal or vertical insertion using an immersion well.
If immersion well or capsule compression fitting must be
ordered, refer to form 68-0040, Wells and Fittings for Tem-
perature Controllers, for part numbers and ordering informa-
tion.
ELECTRICAL RATINGS (A):
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your applica-
tion.
3. Installer must be a trained, experienced service techni-
cian.
4. After installation is complete, check out product op-
eration as provided in these instructions.
WARNING
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY OR DEATH.
This product is intended for use only in systems
with a pressure relief valve.
CAUTION
Disconnect power supply before connecting wir-
ing to prevent electrical shock or equipment
damage.
IMPORTANT: Controller can be used with or without
immersion well. If used, well must snugly fit sensing
bulb for good thermal response. Bulb should be in-
serted until it rests against bottom of well, and then
held there while the tubing clamp is tightened.
NOTE: Some models have an adjustable tubing length to 3
in. (76 mm). In these models, extra tubing inside the case
can be pulled out, if needed. See Fig. 1.
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 model, the element is inserted in an immer-
sion well or directly immersed through a capsule compres-
sion fitting.
Follow the instructions furnished by the system manufac-
turer, if available; otherwise, refer to the appropriate follow-
ing procedure.
Installation
WHEN INSTALLING THIS PRODUCT...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous condi-
tion.
l20 Vac 240 Vac
Full Load 8 5.1
Locked Rotor 48 30.6
Inductive Current 0.25 at 1/4 to 12 Vdc
SENSING ELEMENT IS FACTORY FORMED FOR 1.5 INCH
INSULATION WELL ASSEMBLIES.
FOR 3 INCH INSULATION WELL ASSEMBLIES, PULL OUT
SUFFICENT CAPILLARY TO ASSURE THAT THE CAPSULE
BOTTOMS IN THE WELL.
STRAIGHTEN CAPILLARY SUFFICENTLY SO IT DOES NOT
CAUTION:
EXCESSIVE HANDLING OR SHARP BENDS
CAN DAMAGE THE CAPILLARY.
1
2
3
1
2
3
Fig. 1—Adjusting the capillary length.
INTERFERE WITH INSERTING THE CAPSULE INTO THE WELL.
M8882
INSTALLING IMMERSION WELL MODELS
(L6006A, L6007A)
On existing installation, shut off the power and remove
the old control. If the old immersion well appears suitable,
and the adapter clamp on the Aquastat
®
Controller fits the
old well spud, do not replace.
1. If the system is filled, drain system to a point below the
boiler tapping.
J.H. • Rev. 1-95 • ©Honeywell Inc. 1995 • Form Number 95-5973—3

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