Honeywell L4188B, L4189B, L6188A, L6188C, L6189C User Manual

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Honeywell

THESE BULB-TYPE CONTROLLERS PRO­VIDE OPERATING OR LIMIT CONTROL OF
WATER TEMPERATURE IN HOT WATER
HEATING SYSTEMS AND WATER
HEATERS.

Cl L4188 and L4189 provide spst switching

for high or low limit control.
q L6188 and L6189 provide spdt switching

for low limit and circulator control.
Cl L4188, L6188 models are direct-

mounted.

0 L4189, L6189 models are remote bulb.

Cl Diaphragm-operated switch breaks on
temperature rise (spst and normally closed
spdt contacts).

q Compact controller case for application

flexibility.
0 3116 in. diameter bulb for faster

response.
Cl All models available with or without

setting knob. Models without knob are ad-

justed with screwdriver.

Cl Choice of manual or auto reset. Auto
reset models available with fixed or adjust-

able differential.
Cl l/4 in. male quick-connects standard;

combination screw and l/4 in. quick­connects available.

0 Field adjustable high or low limit stop
available.

Cl Bracket for surface mounting available
on remote bulb models.

Cl Capillary on remote bulb models avail­able in several lengths.

Cl Immersion well with l/2 in. NPT spud
available as accessory.

J.A.

2-86.

Form Number 68-0061

Qlioneywell Inc. 1986

SPECIFICATIONS

THE SPECIFICATIONS GIVEN IN THIS PUBLICATION DO NOT INCLUDE NORMAL MANUFACTURING TOLERANCES.
THEREFORE, THIS UNIT MAY NOT MATCH THE LISTED SPECIFICATIONS EXACTLY. 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.

MODELS: See Table 1.

TABLE l-AQUASTAT CONTROLLER SELECTION GUIDE

APPLICATION SWITCHING 1 MOUNTING

High or low limit

Low limit and

and circulator

Spst, breaks on

temp. rise.

Spdt, breaks C-l,

makes C-2 on

temp. rise.

Direct

Remote bulb

r

aSpecify when ordering.
ELECTRICAL RATINGS:

24 Vat

Full Load
Locked Rotor

SWITCHING: Diaphragm-operated, snap-acting switch.

L4188, L4189: switch breaks on temperature rise to

set point, remakes when temperature drops below
set point and through differential.

L6188, L6189: switch breaks C-l and makes C-2 on

temperature rise to set point; switches back when
temperature drops below set point and through

differential.

1 2.0A

- 1 48.0

1

120 Vat

1 8.0

A 1 5.1
A 1 30.6

IMPORTANT

Screwdriver slot

7,14or22F[4,8or12C],

Giizbkj adjustablea

Knob

Screwdrh

240 Vat

A

A

rer slot

TERMINALS: l/4 in. male quick-connects standard.

Options (specify when ordering):

-Combination screw and l/4 in. quick-connects.

-Separate grounding terminal.

TEMPERATURE SETTING RANGE: 80 to 200 F, 110 to

230 F, and 160 to 280 F [43 to 93 C, 38 to 110 C, and
71 to 138 C] available. Specify when ordering.

Temperature setting minus differential must be no

SETTING SCALE: Marked every 20 degrees F

111 degrees Cl, with subdivisions every 10 degrees F
[6 degrees Cl. Includes OFF setting.

fixeda. or 7-18 F [4-10 C].

7,14,or22F[4,8,or12C],

fixeda, or 7-18 F [4-10 C],

more than 9 F [5 C] below bottom of setting range.

Manual reset L6188C

adiustablea

Manual reset

L4189B

I

L6189A

L6189B

I

L6189C

continued on page 3

I

WHEN PURCHASING THIS HONEYWELL PRODUCT, REFER TO THE PRICE SHEETS FOR COMPLETE
ORDERING NUMBER, OR SPECIFY-

1. Order number.

2. Temperature setting range.

3. Differential.

IF YOU HAVE ADDlTlONAL QUESTIONS, NEED FURTHER INFORMATION, OR WOULD LIKE TO COMMENT ON OUR
PRODUCTS OR SERVICES, PLEASE WRITE OR PHONE:

1. YOUR LOCAL HONEYWELL RESIDENTIAL DIVISION SALES OFFICE (CHECK WHITE PAGES OF PHONE
DIRECTORY).

2. RESIDENTIAL DIVISION CUSTOMER SERVICE
HONEYWELL INC., 1865 DOUGLAS DRIVE NORTH
GOLDEN VALLEY, MINNESOTA 55422-4386 [phone]

IN CANADA-HONEYWELL CONTROLS LIMITED/HONEYWELL LIMITEE, 740 ELLESMERE ROAD, SCARBOROUGH,
ONTARIO MlP 2V9. INTERNATIONAL SALES AND SERVICE OFFICES IN ALL PRINCIPAL CITIES OF THE WORLD.

4. Immersion well or capillary compresslon ffttlng, If needed.

5. Optional specifications, if desired.

2

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0

LIMIT STOP: Limits dial rotation beyond desired high or

low limit temperature. Can be set at 5 F [2.5 C]
intervals. Optional, available on models with knob
only. Specify when ordering.

AMBIENT TEMPERATURE RANGE: 32 F to 158 F 10 C

to 70 C].

MOUNTING: Must be mounted in an enclosure that

meets local electrical codes.
Direct: Unit mounts on immersion well at desired

sensing location.

Remote bulb: Sensing bulb is inserted into immer-

sion well at desired sensing location. Controller

KNOB MODEL

r*~‘s~‘I

case mounts behind remote panel with two self­tapping M4 or No. 8 sheetmetal screws (supplied).
Optional mounting bracket allows mounting on
front of panel. Specify bracket when ordering.

DIMENSIONS: See Fig. 1.
SENSING BULB Liquid-filled copper. See Fig. 1.
UNDERWRITERS LABORATORIES INC. COMPONENT

RECOGNIZED: File No. MP466, Guide No. MBPR.

CANADIAN STANDARDS ASSOCIATION LISTED: File

No. LR62051-1.

-

0

-

SCREWDRIVER SLOT MODEL

IMMERSION WELLS

a

i-uIMtNSIUNS

IN In.

[mm In brackets 1 OF AQUASTAT CONTROLLER

AND IMMERSION WELL.

68-0061