Installation Instructions

Introduction

Read this manual thoroughly before operating or servicing this unit.

Warnings, Cautions, and Notices

Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

The three types of advisories are defined as follows:

⚠️ WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

⚠️ CAUTION

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.

ℹ️ NOTICE

Indicates a situation that could result in equipment or property-damage only accidents.

Important Environmental Concerns

Scientific research has shown that certain man-made chemicals can affect the earth's naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants.

Important Responsible Refrigerant Practices

Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified according to local rules. For the USA, the Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

Safety and Compliance

Copyright and Trademarks

This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.

All trademarks referenced in this document are the trademarks of their respective owners.

General Information

Note: Keep these instructions with the actuator or with the plant documentation.

Parts List

Table 1. Parts list

Figure 1. Parts list. Diagram shows the actuator unit (1), a self-centering shaft adapter (2), an auxiliary switch adjustment tool (3), a shaft adapter locking clip (4), a 3mm hex wrench (5), a mounting bracket (6), and mounting screws (7). The screws are labeled with dimensions 4.8 x 13 DIN 7981.

Required Tools

Mounting Position

Figure 2. Mounting position. Diagrams illustrate acceptable mounting positions for the actuator. One shows the actuator mounted vertically with the shaft horizontal, allowing for angles less than 45 degrees from vertical. Another shows the actuator mounted horizontally with the shaft vertical, at 90 degrees. Ratings IP 54 and NEMA 3R are indicated. Further diagrams show the actuator with the shaft adapter attached, indicating the manual override feature.

Installation

Note: Actuator is shipped with 5° preload. When power is applied to the actuator, the preload is released. To manually release the preload, insert the 3 mm hex key in the override opening and turn the key in the direction of the arrow. See "Manual Override,” p. 8.

The expected installation time is 30 minutes.

Important:

• Do not open actuator.
• Do not turn the 3 mm hex key against the direction of the arrow.

Step 1-3: Shaft length and shaft adapter mounting location

Figure 3. Shaft length and shaft adapter mounting location. Diagrams show the process of attaching the shaft adapter. Step 1 illustrates measuring the shaft length, indicating a minimum of 77 mm (3 inches) and a range of 20 mm to 77 mm (3/4 inch to 3 inches) for the shaft adapter engagement. Step 2 shows aligning the self-centering shaft adapter with the 'SHAFT ADAPTER ALIGNMENT MARK' on the actuator. Step 3 shows inserting the shaft adapter locking clip to secure the adapter.

Step 4: Close the damper

Figure 4. Close damper. Diagram shows the actuator connected to a damper shaft, with an arrow indicating the action of closing the damper. Note: If the damper fail-safe position is open, change the actuator preload from the preset 5° to 85°. See "Manual Override,” p. 8.

Step 5: Mount the actuator onto the shaft

Figure 5. Mount actuator. Diagram shows the actuator being mounted onto the damper shaft.

Step 6: Prepare mounting bracket

Using 4 mm (5/32-in.) drill bit, drill two holes one at each end of the mounting bracket. See Figure 6, p. 8.

Step 7: Install mounting bracket

Figure 6. Install mounting bracket. Diagram shows drilling two holes at each end of the mounting bracket using a 4 mm (5/32-in.) drill bit. It then shows attaching the mounting bracket with mounting screws.

Step 8: Fasten shaft adapter

Figure 7. Fasten shaft adapter. Diagram shows using a 4 mm hex wrench to fasten the shaft adapter to the damper shaft, with a torque specification of 7.5-9 lb-ft (10-12 Nm).

Manual Override

To manually override or set preload:

1. Insert the 3 mm hex key in the override opening.
2. Turn the key in the direction of the arrow until it reaches the desired degree of opening.
3. Hold the key in place.
4. Insert a small flat-blade screwdriver into the gear train lock pin. Turn the screwdriver in the same direction as the arrow until it clicks or meets slight resistance (approximately 5 degrees rotation).

NOTICE Equipment Damage! To avoid stripping the gear train lock pin, do not turn past the click or point of resistance.

To release manual override or preload:

1. Insert the 3 mm hex key in the override opening.
2. Turn the key only a short distance in the direction of the arrow.
3. Remove the key. The actuator will return to 0 (fail-safe) position.

Note: Applying power and sending a control signal will release manual override.

Figure 8. Manual override. Diagrams illustrate the manual override process. 'Rotating' shows inserting a 3mm hex wrench into the override opening and turning it. 'Locking in place' shows holding the key and inserting a small flat-blade screwdriver into a lock pin. 'Releasing when power is absent' shows removing the key.

Wiring

• All wiring must conform to NEC and local codes and regulations.
• Use earth ground isolating step-down Class 2 transformers. Do not use autotransformers.

Note: The maximum rating for a Class 2 stepdown transformer is 100 VA. Determine the supply transformer rating by summing the VA ratings of all actuators and all other components used. It is recommended that not more than 80% of the transformer VA be utilized. The 62 lb-in actuator consumes 8 VA or less.

Either AC line voltage from the same phase must be applied to all six outputs of the dual auxiliary switches, or UL-Class 2 voltage must be applied to all six outputs. Note: With Plenum cables, only UL-Class 2 voltage is permitted.

Table 2. Types of actuator

Table 3. Wire designations for 24 VAC/DC ACT00987 actuator

Figure 9. Modulating 2 to 10 VDC control, 24 VAC/DC ACT00987. Diagram shows a simplified block diagram with connections labeled 1, 2, 3, 4.

Figure 10. Modulating 2 to 10 VDC control, 24 VAC/ DC: ACT00988. Diagram shows a more detailed wiring diagram for the ACT00988, illustrating connections to a motor (M) and terminal blocks with specific pin assignments (G, G0, Y, U) and corresponding wire colors (Red, Black, Pink, Grey).

Table 4. Wire designations for 24 VAC/DC ACT00988 actuator

Dimensions

Figure 11. Actuator and mounting bracket dimensions in inches (millimeters). Diagrams provide detailed dimensions for the actuator and mounting bracket in both inches and millimeters. Key dimensions include height, width, depth, shaft engagement length, and mounting hole spacing.

Notes

Notes section for additional information.