Honeywell Air Conditioner ML4125 User Manual

ML4125, ML4135, ML8125, ML8135  
Fast-Acting, Two-Position Actuators  
FOR HEATING, VENTILATION AND  
AIR-CONDITIONING APPLICATIONS  
PRODUCT DATA  
FEATURES  
Integral spring return.  
-40 to 130°F (-40 to 54°C) operating temperature range.  
No audible noise during holding.  
Electronic circuitry provides efficient operation while  
eliminating the need for limit switches.  
Ninety-five degree angle of rotation.  
Die-cast aluminum housing.  
Housing design allows flush mounting to damper.  
Integral junction box with three conduit openings  
eliminates need for separate wiring box.  
Direct mounting to 3/8 or 1/2 in. round or square shaft.  
ML4125, ML8125  
100 lb-in. (11.3 N•m) minimum driving torque.  
25 to 40 second drive timing (load dependant).  
Models available for 24, 120, and 230 Vac.  
ML4135, ML8135  
40 lb-in. (4.5 N•m) minimum driving torque.  
20 to 25 second drive timing (load dependant).  
Models available for 24 and 120 Vac.  
APPLICATION  
The ML4125, ML4135, ML8125 and ML8135 Fast-Acting,  
Two-Position Actuators are spring return direct coupled  
actuators (DCA) with an integral junction box for on/off  
damper control. The actuator accepts an on/off signal from  
a single-pole, single-throw (spst) controller. Models are  
available with clockwise (cw) or counterclockwise (ccw)  
spring return and are designed for heating, ventilation, and  
air-conditioning (HVAC) applications.  
APPLICABLE LITERATURE  
Motor/Actuator Selection Guide  
for Damper Applications  
Engineering Manual of Automatic Control  
(also called The Gray Manual)  
Direct Coupled Actuator  
63-8419  
77-1100  
IMPORTANT  
This actuator is not to be used in fire/smoke  
applications requiring UL555/555S approval.  
Quick Selection Guide  
63-8553  
63-8437  
Damper Torque Calculator  
Contents  
® U.S. Registered Trademark  
Copyright © 2000 Honeywell • All Rights Reserved  
N314  
63- 2567- 3  
 
   
ML4125, ML4135, ML8125, ML8135 FAST-ACTING, TWO-POSITION ACTUATORS  
Mounting:  
Table 3. Approvals.  
3/8 in. (10 mm) to 1/2 in. (13 mm) square or round damper  
shafts. Actuator can be mounted with shaft in any position.  
Secure hub to shaft with:  
ML4125  
A,B C,D ML4135 ML8125 ML8135  
ML8125, ML4125A,B: Four 1/4-28 UNF set screws. Use  
1/8 in. Allen wrench to tighten set screws.  
ML8135, ML4135: Two 1/4-28 UNF set screws. Use 1/8 in.  
Allen wrench to tighten set screws.  
UL/cUL  
X
X
X
X
X
X
X
X
X
X
UL873  
Plenum Rating,  
File No. E4436  
ML4125C,D: Four 3 mm set screws. Use 3 mm Allen wrench  
to tighten set screws.  
CE  
X
X
X
X
X
C-TICK  
IMPORTANT  
Honeywell does not recommend using linkages with  
these actuators because side-loading of the output  
hub reduces actuator life.  
2 (51)  
1 (25)  
Minimum Damper Shaft Length:  
1-3/4 in. (45 mm).  
5/8  
(17)  
1
Timing:  
Drive Open:  
6 3/8  
(161)  
ML4125, ML8125: 25 to 40 seconds (load dependant).  
ML4135, ML8135: 20 to 25 seconds (load dependant).  
Spring Close:  
ML4125, ML8125: 20 to 25 seconds.  
ML4135, ML8135: 15 seconds.  
7 1/2  
(192)  
Design Life (at Rated Voltage):  
ML4125, ML8125: 80,000 full-stroke cycles.  
ML4135, ML8135: 60,000 full-stroke cycles.  
Environmental Protection Ratings:  
Table 2. Environmental Ratings.  
All Devices ML4125C,D, ML8125, ML8135  
IP54  
2 (51)  
3 5/16 (84)  
4 (102)  
1/16 (2)  
NEMA1  
7/8 (22)  
Approvals:  
See Table 3.  
1
ML4135/ML8135 HAVE SHORTER  
HUB WITH TWO SET SCREWS.  
ML4125/ML8125 HAVE LONGER  
HUB WITH FOUR SET SCREWS.  
Accessories:  
201391 Shaft Adapter for 3/8 in. (10 mm) shafts.  
205649 Mounting Bracket (included with the actuator).  
32003532-001 Adjustable Switch Package, two 10A  
externally-mounted fully-adjustable switches.  
5 1/8 (129)  
M17538  
Fig. 1. ML4125/4135, ML8125/8135  
dimensiona drawing in in. (mm).  
3
63-25673  
 
   
ML4125, ML4135, ML8125, ML8135 FAST-ACTING, TWO-POSITION ACTUATORS  
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.  
4.  
Installer must be a trained, experienced service  
technician.  
After installation is complete, check out product  
operation as provided in these instructions.  
1
IMPORTANT  
All wiring must agree with applicable codes,  
ordinances and regulations.  
WARNING  
Electrical Power Hazard.  
Line voltage can cause death or serious injury  
and short equipment circuitry.  
Disconnect power supply before installation.  
1
ENSURE THAT MOUNTING ASSEMBLY PREVENTS ACTUATOR  
ROTATION AND ALLOWS ACTUATOR TO FLOAT ALONG INDICATED  
AXIS. WHEN TOO TIGHT, THE RESULTING BINDING CAN DAMAGE  
CAUTION  
Electrical Shock or Equipment Damage Hazard.  
Low voltage can shock individuals or short  
equipment circuitry.  
THE ACTUATOR OR REDUCE TORQUE OUTPUT.  
M17519  
Fig. 2. Mounting actuator to damper housing.  
Disconnect power supply before installation.  
NOTE: The actuator mounts flush with the damper box.  
Location and Mounting  
Preparation  
Before mounting the actuator onto the damper shaft, determine  
the damper shaft size (3/8 in. to 1/2 in. [10 mm to 13 mm]).  
CAUTION  
Equipment Damage Hazard.  
Tightly securing actuator to damper housing can  
damage actuator.  
Mount actuator to allow it to float along its vertical axis.  
If damper shaft is 3/8 in. (10 mm) round or square, use part  
number 201391 Shaft Adapter. Place adapter opposite  
set screws (see Fig. 3).  
The actuators are designed to open a damper by driving the  
NOTE: The damper shaft adapter centers a 3/8 in. (10 mm)  
damper shaft in the hub. Failure to use adapter can  
cause mounting screws to loosen. A 1/2 in. (13 mm)  
damper shaft does not require an adapter.  
damper shaft in either clockwise  
or counterclockwise  
direction. The actuator housing has two slots on the  
bottom that, with a 205649 Mounting Bracket, secure it flush  
to a damper box (see Fig. 2). When mounted correctly, these  
float  
slots allow the actuator to  
damper shaft.  
without rotating relative to the  
SHAFT ADAPTER  
NOTE: ML4125, ML4135, ML8125 and ML8135 Actuators  
are shipped in the fully closed position.  
M2064  
Fig. 3. Using damper shaft adapter for  
3/8 in. (10 mm) damper shafts.  
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ML4125, ML4135, ML8125, ML8135 FAST-ACTING, TWO-POSITION ACTUATORS  
IMPORTANT  
Installation  
1. All wiring must comply with local electrical codes,  
ordinances and regulations.  
2. Voltage and frequency of transformer used with  
ML8125 or ML8135 must correspond with the  
characteristics of power supply and actuator.  
3. Use wires rated for at least 75°C (167°F).  
CAUTION  
Improper set screw tightening causes device  
Device Malfunction Hazard.  
malfunction.  
Tighten set screws with proper torque to prevent  
damper shaft slippage.  
See Fig. 4 through 6 for typical wiring diagrams.  
CAUTION  
Using actuator as shaft bearing causes device  
(
(
)
)
L1  
L2  
Actuator Damage Hazard.  
RED  
R
W
24 VAC  
BLACK  
damage.  
Use actuator only to supply rotational torque. Avoid  
any side loads to actuator output coupling bearings.  
M17585  
To install actuator, proceed as follows:  
1.  
Place actuator over damper shaft; and hold mounting  
bracket in place. See Fig. 2.  
Fig. 4. Typical 24 Vac wiring.  
2.  
3.  
4.  
Mark screw holes on damper housing.  
Remove actuator and mounting bracket.  
Drill or center-punch holes for mounting screws (or use  
no.10 self-tapping sheet metal screws).  
(
(
)
)
L1  
5.  
6.  
Turn damper blades to desired normal (closed) position.  
Place actuator and mounting bracket back into position  
and secure bracket to damper box with sheet metal  
screws.  
BLACK  
R
W
120  
VAC  
WHITE  
L2  
7.  
Tighten set screws securely into damper shaft using  
minimum 30 lb-in., maximum 60 lb-in. torque. Use  
1/8 in. or 3 mm Allen wrench (see Specifications for  
details) to tighten set screws.  
M17589  
Fig. 5. Typical 120 Vac wiring.  
Wiring  
WARNING  
Line voltage can cause death or serious injury  
(
(
)
)
L1  
BROWN  
Electrical Power Hazard.  
R
W
230  
VAC  
BLUE  
and short equipment circuitry.  
L2  
Disconnect power supply before installation.  
M17588  
CAUTION  
Fig. 6. Typical 230 Vac wiring.  
Table 4. Color Translations.  
Electrical Shock or Equipment Damage Hazard.  
Low voltage can shock individuals or short  
equipment circuitry.  
Disconnect power supply before installation.  
G
F
BRUN  
BLEU  
I
E
BROWN  
BLUE  
BRAUN  
BLAU  
BRUNO  
CAFE  
AZZURRO AZUL  
BLACK  
WHITE  
RED  
SCHWARZ NOIR  
NERO  
NEGRO  
WEISS  
ROT  
BLANC  
ROUGE  
BIANCO  
ROSSO  
BLANCO  
ROJO  
5
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ML4125, ML4135, ML8125, ML8135 FAST-ACTING, TWO-POSITION ACTUATORS  
OPERATION  
CHECKOUT  
The actuators are operated by an spst two-position controller.  
When using an spst two-position controller, the actuator drives  
to the damper fully open position when controller contact  
makes and spring returns to the damper fully closed position  
when controller contact breaks. The actuator drops to holding  
power level on detection of stall, independent of hub position.  
ML4125A,B, ML4135 (120 Vac model)  
1.  
2.  
Check damper position.  
Connect 120 Vac to the black and white leadwires to  
drive the damper to the open position. The actuator  
should drive the damper.  
3.  
4.  
5.  
6.  
If the actuator does not run, remove power for at least  
two seconds.  
If power fails, the actuator spring returns to the 0° position.  
If the actuator spring returns, allow it to close entirely,  
then return to step 2.  
If the actuator does not spring return, verify that the  
actuator is properly installed. See Installation section.  
I
f the actuator is correctly installed but neither runs nor  
spring returns, replace the actuator.  
ML4125C,D (230 Vac model)  
1.  
2.  
Check damper position.  
Connect 230 Vac to the blue and brown leadwires to  
drive the damper to the open position. The actuator  
should drive the damper.  
3.  
4.  
5.  
6.  
If the actuator does not run, remove power for at least  
two seconds.  
If the actuator spring returns, allow it to close entirely,  
then return to step 2.  
If the actuator does not spring return, verify that the  
actuator is properly installed. See Installation section.  
I
f the actuator is correctly installed but neither runs nor  
spring returns, replace the actuator.  
ML8125, ML8135 (24 Vac model)  
1.  
2.  
Check damper position.  
Connect 24 Vac to the red and black leadwires to drive  
the damper to the open position. The actuator should  
drive the damper.  
3.  
4.  
5.  
6.  
If the actuator does not run, remove power for at least  
two seconds.  
If the actuator spring returns, allow it to close entirely,  
then return to step 2.  
If the actuator does not spring return, verify that the  
actuator is properly installed. See Installation section.  
If the actuator is correctly installed but neither runs nor  
spring returns, replace the actuator.  
63-25673  
6
 
         
ML4125, ML4135, ML8125, ML8135 FAST-ACTING, TWO-POSITION ACTUATORS  
D
F
I
Montageanweisung  
Instructions dInstallation  
Istruzioni per IInstallazione  
NL Installatievoorschrift  
DK Installasjonsinstruks  
N
Installationsinstrukioner  
SF Asennusohje  
S
E
Installations Instrukioner  
Instrucciones de montaje  
A2  
A
A1, A4  
24 VAC  
230 VAC  
!
d
ASSEMBLY  
EINBAU  
D
F
I
MONTAGE  
MONTAGGIO  
a
NL MONTAGE  
DK MONTERE  
N
MONTERING  
a
FIN ASENTAMINEN  
S
E
MONTERA  
MONTAJE  
b
M11874  
b
c
M11875  
M11876  
M11876  
A3  
A5  
A6  
MIN: 45 lb-in. (5.1 Nm)  
MAX: 60lb-in. (6.8 Nm)  
b
HEX  
4mm  
c
a
a
b
b
a
M12030  
M11881  
M11882  
7
63-25673  
 
ML4125, ML4135, ML8125, ML8135 FAST-ACTING, TWO-POSITION ACTUATORS  
B
B1  
B2  
B4  
24 VAC  
230 VAC  
!
a
b
M11887  
DISASSEMBLY  
AUSBAU  
DÉMONTAGE  
SMONTAGGIO  
D
F
I
M11886  
NL DEMONTAGE  
DK AFMONTERE  
DEMONTERE  
FIN PURKAMINEN  
N
B3  
S
E
NEDMONTERA  
DESMONTAJE  
M11884  
a
HEX  
4mm  
b
M11885  
M11888  
Home and Building Control Home and Building Control  
Honeywell Asia Pacific Inc. Honeywell Europe S.A. Honeywell Latin American  
Honeywell  
Honeywell Limited-Honeywell Limitée  
Room 3213-3225  
Sun Hung Kai Centre  
No. 30 Harbour Road  
Wanchai  
3 Avenue du Bourget  
1140 Brussels  
Belgium  
Region  
480 Sawgrass Corporate Parkway  
Suite 200  
Sunrise FL 33325  
1985 Douglas Drive North  
Golden Valley, MN 55422  
35 Dynamic Drive  
Scarborough, Ontario  
M1V 4Z9  
Hong Kong  
Printed in U.S.A. on recycled  
paper containing at least 10%  
post-consumer paper fibers.  
63-25673 B.B. Rev. 7-00  
 

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