Honeywell MCSS, MCSP Data Sheet

ML4115, ML8115 Fast-Acting, Two-Position Actuators

FOR FIRE/SMOKE CONTROL APPLICATIONS

The ML4115, ML8115 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 to operate reliably in smoke control systems requiring Underwriter’s Laboratories Inc. UL555S ratings up to 350°F.

SPECIFICATIONS

Models:

Model

ML4115A ccw 120 30 (3.4)

ML4115B cw

ML4115C ccw 230

ML4115D cw

ML8115A ccw 24

ML8115B cw

Electrical Ratings:

! Power Input:

! ML4115A,B: 120 Vac ±10%, 60 Hz. ! ML4115C,D: 230 Vac ±10%, 50/60 Hz. ! ML8115: 24 Vac +20%, -10%, 50/60 Hz.

! Power Consumption:

! ML4115A,B: Running: 0.18A, 18W. Holding: 0.11A, 9W. ! ML4115C,D: Running: 0.13A, 18W. Holding: 0.10A, 11W. ! ML8115: Running: 16 VA. Holding: 8 VA.

Electrical Connections:

! ML4115A,B, ML8115: Two color coded 16 in. leads;

includes ground screw.

! ML4115C,D: 1m appliance cable. ! Three 7/8 in. holes for conduit connections

(fittings not included).

Controller Type:

! ML4115A,B: Line voltage (120 Vac), two-position, spst

(Series 40).

! ML4115C,D: Line voltage (230 Vac), two-position, spst

(Series 40).

! ML8115: Low voltage (24 Vac), two-position, spst

(Series 80).

Device Weight:

! 5 lb (2.3 kg).

Noise Rating (Maximum):

! Driving Open: 65 dBA at 1m. ! Holding: 20 dBA at 1m (no audible noise).

Spring Return

Direction

Voltage

in Vac

Torqu e

in lb-in. (N•m)

FEATURES

• 30 lb-in. (3.4 N•m) minimum driving torque at 350°F (176°C).

• Integral spring return ensures level of return torque.

• Stainless steel internal spring.

• Fifteen-second spring return timing.

• No special cycling required during long-term holding.

• No audible noise during holding.

• Patent pending design eliminates need for limit switches to reduce power consumption.

• Models available for 24 and 120 Vac.

• Ninety-five degree angle of rotation.

• Actuator holds rated torque at reduced power level.

• Die-cast aluminum housing.

• Housing design allows flush mounting to damper.

• Integral junction box with three conduit openings eliminates need for separate wiring box.

Temperature Ratings:

! Ambient: 0°F to 130°F (-18°C to 55°C). ! Shipping and Storage: -40°F to 140°F (-40°C to 60°C).

IMPORTANT

The actuator is designed to meet UL555S standards at 350°F (176°C). The actuator must be tested with the damper to achieve this rating.

Humidity Ratings:

! 5% to 95% RH noncondensing.

Stroke:

! 95° ± 3°, mechanically limited.

Torque Rating (at rated voltage):

! Typical Holding (0°F to 350°F): 30 lb-in. (3.4 N•m). ! Typical Driving (0°F to 350°F): 30 lb-in. (3.4 N•m). ! Spring Return: 30 lb-in. (3.4 N•m). ! Stall Maximum: 150 lb-in. (17 N•m).

Timing (At Rated Torque and Voltage):

! Drive Open:

! ML4115: 25 sec maximum, 18 sec typical. ! ML8115: 25 sec maximum, 22 sec typical.

! Spring Close: 15 sec.

Design Life (at Rated Voltage):

! 60,000 full stroke cycles.

Cycling Requirements:

! Prolonged holding period (1 year) testing of these

actuators has been performed with no evidence of reduced spring return performance.

Minimum Damper Shaft Length:

! 1-1/2 in. (38 mm).

N314

SPECIFICATION DATA

63-1291—5

ML4115, ML8115 FAST-ACTING, TWO-POSITION ACTUATORS

Mounting:

! 3/8 to 1/2 in. square or round damper shafts. Can mount

actuator with shaft in any position. Secure hub to shaft with: Two 1/4-28 UNF set screws. Use 1/8 in. Allen wrench to tighten set screws.

IMPORTANT

Honeywell does not recommend using linkages with these actuators because side-loading of the output hub reduces actuator life.

Environmental Protection Ratings:

! NEMA 1.

Accessories (not supplied with actuator):

! 201391 Shaft Adapter for 3/8 in. shafts. ! 205649 Mounting Bracket. ! 32003532-005 Dual Auxiliary Switch Package for

UL555(S) applications.

Approvals:

ML4115C,D

ML4115A,B

ML8115

UL/cUL X X

UL873 Plenum Rating,

XX File No. E4436; Guide No. XAPX.

CE X

C-TICK X

( )

230 VAC

( )

M17588A

Dimensions:

BROWN

BLUE

Fig. 3. Typical 230 Vac wiring.

2 (51)

1 (25)

5/8 (17)

6 3/8 (161)

7 1/2 (192)

( )

M17585A

24 VAC

RED

BLACK

Fig. 1. Typical 24 Vac wiring.

( )

120 VAC

( )

M17589A

BLACK

WHITE

IMPORTANT

Fig. 2. Typical 120 Vac wiring.

Automation and Control Solutions

Honeywell International Inc. Honeywell Limited-Honeywell Limitée

4 (102)

2 (51) 3 5/16 (84)

7/8 (22)

5 1/8 (129)

1/16 (2)

M17899

For actuators with a product date code before 0527, a power break of less than two seconds can cause the actuator to spring-return 5 degrees or less and remain in place until a power break of longer duration. For actuators with a product date code of 0527 or after, a power break of any duration will cause the actuator to spring-return and be able to drive immediately when power is reapplied.

By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising out of your use or modification to, the literature. You will defend and indemnify Honeywell, its affiliates and subsidiaries, from and against any liability, cost, or damages, including attorneys’ fees, arising out of, or resulting from, any modification to the literature by you.