| IMPORTANT: | Accessories/Parts: |
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| those conditions are changed. | Stroke--19mm (3/4") or less Stroke timing-- Approx. 63 seconds for 3/4" stroke Closing Force-- 710N (160 lbs.) Nominal* *Rating applies to both directions. |
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| -40°C to +65°C (-40°F to 150°F) | Performance Specifications: |
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| 相對濕度 | Minimum Signal Input Duration: 200 milli-second conditions) 50,000 full stroke cycles plus 1,000,000 repositions at 10% stem travel or 10 years, |
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| Acoustic Noise: | whichever occurs first. |
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| ! | CAUTION Minimum required control signal input duration is 200 milli-second. Short and rapid cycling/repositioning will result in possible device lock-up or reduced service life. 1. Model number. 2. Valve body type and model number. 3. Accessories, if desired. 1. Your local Honeywell Home and Building Control Sales office (Check white pages of your phone directory). 2. Home and Building Control Cus |
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| In U.S.A. -- | Honeywell Inc. 1985 Douglas Drive North, Minneapolis, Minnesota 55422-4386 (612) 951-1000 Mounting: |
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| 安裝 | 1. Ensure that the valve body is installed correctly, that is, the arrow points in the direction of the flow. 2. Although the actuator can be mounted in any position, it is preferable that the ML6984 is mounted above the valve body. This will minimize the risk of damage to the ML6984 in the event of condensation or a valve gland leak. 3. Remove the stem button (Fig. 3) from the valve stem. Save th |
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| FIG.2 -- MINIMUM MOUNTING CLEARANCE. | threads showing), by turning the valve actuator in a clockwise direction, as viewed from above (depending on the valve models, use a pin or wrench to keep valve stem from turning). Note that the valve |
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| occur. | 4. Orient the conduit hole to the most desirable direction, then tighten the LOCKNUTS on the U-bolt. |
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| FIG.3 -- PREPARATION FOR VALVE ASSEMBLY. | FIG. 4 -- ASSEMBLY OF ML6984A TO VALVE. the two screws located on the top (Note: These screws are captive. Rotate three complete revolutions to remove or Allen Wrench cover ). Drop either Slot Headed or Allen Hex type of set screw (both are included in the plastic bag ) into the top of the shaft, slotted/ Hexed side up. Or use the set screw from the valve stem button. 5 mm (3/16") Slotted screwdri |
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| FIG. 5 -- U-BOLT ASSEMBLY. | FIG. 6. -- LOCKING ML6984A DRIVE SHAFT TO VALVE STEM |
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| Typical Electronic Controller | ML6984 3 |
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| L1 | H 1 W T6 24 Vac 3-wire control systems |
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| C | T5 3 B 1 Typical Electro-mechanical |
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| Controller | ML6984 3 |
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| L2 | R W |
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| B | T5 |
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| Typical SPDT Controller | 3 ML6984 |
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| W | T6 24 Vac |
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| T6 | + 28 Vdc |
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| the last position. | same electrical circuit. For multiple actuators controlled by a common controller in parallel, these actuators must be To replace ML6874: 1. The new ML6984 is a direct replacement for the old ML6874 in single actuator hook-up. |
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| ! CAUTION: | 2. For parallel multiple old ML6874 actuators applications, 1. Disconnect power supply before beginning an isolation relay must be used (isolation relay contacts installation to prevent electrical shock and should be placed in the new ML6984 actuator signal input |
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| equipment damage. | "W" and "B" circuit). 2. All wiring must comply with applicable local electrical codes, ordinances and regulations. Checkout: 3. Make certain that the voltage and frequency of 1. Make sure the valve stem is completely screwed into the the power supply correspond to the rating of actuator drive shaft with no threads showing. |
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| the device. | 2. Make sure the valve stem is locked in place with the set 4. DO NOT electrically operate the ML6984 screw. |
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| before assembly to the valve because | 3. With 24 Vac or 28Vdc power supply connected to T5 & |
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| damage not apparent to the installer may | T6. |
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| Home and Building | Home and Building modification to, the literature. You will defend and indemnify |
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| Control | Control Honeywell, its affiliates and subsidiaries, from and against any |
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| Honeywell Limited/Limitee | Honeywell Inc. liability, cost, or damages, including attorneys’ fees, arising out of, or resulting from, any modification to the literature by you. 155 Gordon Baker Road 1985 Douglas Drive North |
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| North York , ON | Golden Valley, MN 55422 Canada M2H 3N7 www.honeywell.com |
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