How it Works
Bray
Loading...
70
OPERATING MANUAL
16 pgs2.14 Mb0
Table of contents
Loading...

Bray 70 OPERATING MANUAL

Download
SERIES 70
TUNNEL DAMPER MODEL ELECTRIC ACTUATOR
OPERATION AND MAINTENANCE MANUAL
BRAY Series 70 Tunnel Damper Electric Actuator
Operation and Maintenance Manual
Table of Contents
Safety Instructions - Definition of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Disassembly and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Appendix A - Basic Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Appendix B - Actuator Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Exploded View Series 70 Tunnel Damper Model Housing Size 12 . . . . . . . . . . . . . . . . . . . . . . . 10
Exploded View Series 70 Tunnel Damper Model Housing Size 30 . . . . . . . . . . . . . . . . . . . . . . . 11
1
BRAY Series 70 Tunnel Damper Electric Actuator
!
!
!
!
Operation and Maintenance Manual

SAFETY INSTRUCTIONS - DEFINITION OF TERMS

READ AND FOLLOW THESE INSTRUCTIONS
SAVE THESE INSTRUCTIONS
WARNING
CAUTION
NOTICE
indicates a potentially hazardous situation which, if not avoided, could re­sult in death or serious injury.
indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
used without the safety alert symbol indicates a potential situation which, if not avoided, may result in an undesirable result or state, including property damage.

1.1 HAZARD-FREE USE

This device left the factory in proper condition to be safely installed and operated in a hazard-free manner. The notes and warnings in this document must be observed by the user if this safe condition is to be maintained and hazard­free operation of the device assured.
Take all necessary precautions to prevent damage to the actuator due to rough handling, impact, or improper storage. Do not use abrasive compounds to clean the actuator, or scrape metal surfaces with any objects.
The control systems in which the actuator is installed must have proper safeguards to prevent injury to personnel, or damage to equipment, should failure of system components occur.
• Is trained in the proper use and care of personal protective equipment (PPE) in accordance with established safety practices
• Is trained in first aid
• In cases where the device is installed in a potentially explosive (hazardous) location – is trained in the operation, commissioning, operation and maintenance of equipment in hazardous locations
WARNING
The actuator must only be installed, commissioned, operated and repaired by qualified personnel.
The device generates large mechanical force during normal operation.

1.2 QUALIFIED PERSONNEL

A qualified person in terms of this document is one who is familiar with the installation, commissioning and opera­tion of the device and who has appropriate qualifications, such as:
• Is trained in the operation and maintenance of electric equipment and systems in accordance with established safety practices
• Is trained or authorized to energize, de-energize, ground, tag and lock electrical circuits and equipment in accordance with established safety practices
2
All installation, commissioning, operation and maintenance must be performed under strict observation of all applicable codes, standards and safety regulations.
Reference is specifically made here to observe all applicable safety regulations for actuators installed in potentially explosive (hazardous) locations.
BRAY Series 70 Tunnel Damper Electric Actuator
Operation and Maintenance Manual
Part NumberiNg SyStem refereNce chart
SerieS torque code SPeed Product Style Voltage trim dir
70 AAA W 113 X Y 536 /Z
houSiNg
Size
Use this chart as a guide to interpret the S70 Tunnel Damper electric actuator part number.
Part Number
12 70-0122-113E0-536 1200 15 120 VAC 12 70-0202-113E0-536 2000 15 120 VAC 30 70-0302-113E0-536 3000 18 120 VAC 30 70-0502-113E0-536 5000 18 120 VAC

INTRODUCTION

The Bray Series 70 Tunnel Damper Electric Actuator is a quarter turn electric actuator with manual override for use on any quarter turn valve requiring up to 5000 in.lb of torque. Operating speeds vary between 15 to 18 seconds.

PRINCIPLE OF OPERATION

The Series 70 Tunnel Damper electric actuator is divided into two internal sections; the power center below the switchplate, and the control center above the switchplate. Below the switchplate the capacitor and gearmotor, with its spur geartrain, drive a non-backdriveable worm gear output. The override mechanism for manual operation is also housed here. Above the switchplate is where user required, readily accessible components are placed. The camshaft assembly, limit switches, terminal strips, and heater are all placed here for easy access. External to the unit are adjustable mechanical travel stops, the unique manual override handwheel, and dual conduit entry ports. The external coating is a high quality polyester powder coat which has exceptional UV as well as chemical resistance.

ELECTRICAL OPERATION

The motors used in the Bray Series 70 Tunnel Damper elec­tric actuator are permanent induction split capacitor design (single phase AC power). Travel limit switches are mechanical form ZZ(DPDT-DB) with contacts rated at 10 amp (0.8 PF), 1/2 HP 125/250 VAC. In cases where the torque capacity of the unit is exceeded to the point where the motor stalls and overheats, a thermal protector switch built into the motor windings will automatically disconnect the motor power. Once the motor cools sufficiently the thermal protector switch will reset.
torque
(In.Lbs)
SPeed, ¼ turN
(Seconds)
SuPPly
(Voltage)

MECHANICAL OPERATION

Mechanically, the ratio of the gear motor determines the speed of the unit. The gear motor utilizes high efficiency spur gears. Initial gear reduction through the spur gears is then transferred to the worm shaft. The final gear reduction and output is through a non-backdriveable worm gear set. Positioning is determined by an indicator-cam shaft linked to the output shaft. In the declutchable condition the manual override drives the worm shaft when engaged.

CW VS CCW

Due to the fact that the Series 70 is a rotary actuator, there are two directions that it can turn to actuate a device: clockwise and counter-clockwise. Depending on the application the actuator is going into, and the physical constraints that application presents, it may be preferential to designate which direction the actuator turns to open and close. This is accomplished with the /Z designator, which assigns the open direction of the actuator: CW for clockwise and CCW for counter-clockwise. This can be easily determined locally by looking at which direction the open arrow is pointing on the actuator hand wheel, and should be kept in mind when mounting the actuator to the device. To ensure proper function, the direction of travel should always align with the arrows on the hand wheel and the /Z designator in actuator part number.

ELEVATED TEMPERATURE RATINGS

The Series 70 actuator is certified to meet NEMA type 4/4x specifications. The actuator utilizes a thermally protected, permanent split-capacitor (PSC) motor coupled to a gear train, allowing operation after experiencing elevated ambient temperatures. It has been tested to and complies with NYCTA Master Specification 15ID dated 7/16/12 – Dampers and Accessories for Tunnel Ventilation and Station
Smoke Management, certifying it for use after soaking at an elevated ambient temperature of up to 302°F (150°C) for a minimum of 1 hour without the use of an insulated thermal blanket.
W - DESIGNATES THE SPEED
2 15/18 seconds
X - DESIGNATES STYLE
E Basic Unit - Declutchable
Y - DESIGNATES THE VOLTAGE
0
/Z - DESIGNATES DIRECTION OF OPEN TRAVEL
/CW
/CCW
120VAC
Clockwise
Counter-Clockwise
3
BRAY Series 70 Tunnel Damper Electric Actuator
!
!
!
!
!
Operation and Maintenance Manual

MANUAL OVERRIDE OPERATION (DECLUTCHABLE)

The manual override operates similar to a watch adjusting knob. To engage the manual override, simply pull the hand­wheel to its outermost position. A yellow stripe is revealed for visual indication that the unit cannot run electrically. The two handwheel positions, engaged and disengaged, are held in place with the use of spring plungers. The hand­wheel remains in position until physically moved. Rotating the handwheel in the clockwise direction will rotate the output shaft in the same clockwise direction and vice-versa.
CAUTION
A label on the handwheel hub warns users not to exceed a specific rim pull force, for each size of actuator. If the rim pull force is exceeded, the roll pin securing the hand­wheel onto the manual override shaft is designed to shear, thus preventing more serious internal gearing damage.

PRE-INSTALLATION STORAGE

Actuators are not weatherproof until properly installed on the valve or prepared for storage. Bray cannot accept responsibility for deterioration caused on-site once the cover is removed.
NOTICE
The standard mounting position for the actuator is to orient the unit with its handwheel in a vertical plane and parallel to the pipeline. If the actuator is to be mounted on a vertical pipe, it is recommended that the unit be positioned with the conduit entries on the bottom to prevent condensation from entering the actuator by way of the conduit. In all cases, the conduit should be positioned to prevent drainage into the actuator.
The actuator should be mounted to the valve as follows:
1. Manually operate the actuator until the output shaft of the actuator is in line with the valve stem. If pos­sible, select an intermediate position (i.e. valve disc/ stem and actuator both half open).
2. Place the proper adapter, if required, onto the valve stem. It is recommended that a small amount of grease be applied to the adapter to ease assembly.
3. Mount the actuator onto the valve stem. It may be necessary to swing or manually override the actuator to align the bolt patterns.
4. Install the furnished mounting studs by threading them all the way into the actuator base.
5. Fasten in place with the furnished hex nuts and lock washers.

FIELD WIRING

NOTICE
Units are shipped with two metal screw-in plugs to pre­vent foreign matter from entering the unit. To prevent condensation from forming inside these units, maintain a near constant external temperature and store in a well­ventilated, clean, dry room away from vibration.
Power should be supplied to the heater via conduit entry and appropriate sealing gland.
Store units on a shelf or wooden pallet in order to protect against floor dampness.
Keep units covered to protect against dust and dirt.

INSTALLATION

MOUNTING TO A VALVE

All Bray Series 70 electric actuators are suitable for direct mounting on Bray butterfly valves. With proper mounting hardware, the S70 actuator can be installed onto other quarter-turn valves or devices, such as a damper.
4
WARNING
Turn off all power and lock out service panel before installing or modifying any electrical wiring.
Each actuator is provided with two (2) conduit entries (one for power and one for control).
1. The motor full load current is noted on the nameplate of the actuator. The terminal strip will accept wire sizes ranging from 14 to 22 AWG.
NOTICE
18 AWG minimum wire is recommended for all field wiring.
Note that heaters use approximately 0.5 amps at 110 volts.
2. All actuators have their applicable wiring diagram attached to the inside of the cover. Field wiring
should be terminated at the actuator terminal strip in accordance with this wiring diagram.
!
NOTICE
!
!
Striker Bar
The conduit connections must be properly sealed to main­tain the weatherproof integrity of the actuator enclosure.
CAUTION
Do not reverse motor instantaneously when it is still run­ning. Reversing direction to actuator motor when it is running can cause damage to motor, switches and gear­ing. Directional control switching can be done by PLC in 20ms or by a small relay in 46ms. Therefore time delay of 1s has to be incorporated into the control scheme to avoid damage.
BRAY Series 70 Tunnel Damper Electric Actuator
Operation and Maintenance Manual

CLOCKWISE TRAVEL SWITCH ADJUSTMENT

1. Loosen the mechanical stop for the CW position and
back it off so that it does not interfere with actuator travel (CW stop located on right when viewed from travel stop side of actuator).

TRAVEL LIMIT SWITCH AND MECHANICAL TRAVEL STOP ADJUSTMENT

CAUTION
The electrical travel switches must be set to activate (depress) prior to reaching the mechanical travel stops. The cams are color coded (green for CCW, red for CW).
NOTE: Manual travel stops are designed to prevent manual overtravel from turning the handwheel, not to stop the electric motor. The travel stops have an adjustment range of approximately 10-degrees.
2. Reference the striker bar for damper position.
3. Manually operate the actuator handwheel clockwise
until the valve reaches the desired fully CW position.
4. Rotate the red adjusting knob by hand or with a flat
head screwdriver until the cam lobe just activates (de­presses) the switch from a clockwise direction.
NOTICE: All actuators have a cam locking screw. Cam
locking screw must be slackened before cam adjust­ments and re-tightened after cam adjustments.
UPPER GREEN “CCW” CAM
LOWER RED “CW” CAM
CAM LOCKING SCREW
CAM ADJUSTMENT KNOB (ONLY ADJUST IF LOCKING
POT DRIVE GEAR “BLACK” NOT SHOWN
NOTE: It is possible that the rotation of one cam will
move the other cam. If this occurs, hold the other knobs or cams during adjustment.
SCREW IS SLACKENED)
5. With the travel switch in the CW position, rotate the
handwheel clockwise 1 turn for Housing Size 12 and ½ turn for Housing Size 30. Adjust the CW travel stop bolt until it bottoms against the output gear and lock it in position with the locknut.
6. After all travel switch adjustments have been com-
pleted, secure the actuator cover.
5
BRAY Series 70 Tunnel Damper Electric Actuator
!
11/11/2014
ERN-161731
GA-03075
DRAWING NO.
RELEASED
ERN
3
REV.
2 OF 5
SHEET
THIRD ANGLE
THE INFORMATION CONTAINED HEREIN SHALL NOT BE COPIED, TRANSFERRED, CONVEYED OR DISPLAYED IN ANY MANNER THAT WOULD VIOLATE ITS PROPRIETARY NATURE WITHOUT THE EXPRESS WRITTEN PERMISSION OF BRAY INTERNATIONAL,INC.
BUSA Cindy Downey
SERIES 70, SIZE 30 - NYCTA MODEL
ELECTRIC ACTUATOR
ISOMETRIC EXPLODED VIEW
Operation and Maintenance Manual

COUNTER-CLOCKWISE TRAVEL SWITCH ADJUSTMENT

1. Loosen the mechanical stop for the CCW position and back it off, so that it does not interfere with actua­tor travel. The CCW stop is located on the left, when viewed from travel stop side of actuator.
2. Reference the striker bar for damper position.
3. Manually operate the actuator handwheel counter­clockwise until the valve reaches the desired CCW position.
WARNING
The heater surface can reach temperatures in excess of 200 degrees Celsius (392°F)
Heater Kit Consists of:
1. Heater with flying leads
2. Heater Mounting Bracket
3. #10 pan head screw, Phillips drive
4. Rotate the green adjusting knob until the cam lobe just activates (depresses) the switch from a counter­clockwise direction.
NOTICE: All actuators have a cam locking screw. Cam locking screw must be slackened before cam adjust­ments and re-tightened after cam adjustments.
NOTE: It is possible that the rotation of one cam will move the other cam. If this occurs, hold the other knobs or cams during adjustment.
5. With the travel switch in the open position, rotate the handwheel counterclockwise 1 turn for Housing Size 12 and ½ turn for Housing Size 30. Adjust the CCW travel stop bolt until it bottoms against the output gear and lock in position with the locknut.
6. After all travel stop adjustments have been completed, secure the actuator cover.

HEATER

To prevent condensation from forming inside the actuator, Bray offers a heater as standard in Series 70 Tunnel Damper models. The heater is a PTC (Positive Temperature Coefficient) style which has a unique temperature ­resistance characteristic. The heater self-regulates by increasing its electrical resistance relative to its temperature. The heater does not require external thermostats or switches to control its heat output. It is constructed of a polycrystalline ceramic, sandwiched between two conductors, and wrapped inside a thermally conductive electrical insulator.
Connect the heater wires to the terminal strip as indicated on the wiring diagram.
NOTE: The heater must have a constant power supply to be effective.
Tools required:
• For terminal wiring: Screwdriver, 1/4” tip flat blade
• For heater mounting screw: Screwdriver, No.1 Phillips
Installation procedure:
The heater is mounted through a hole provided in the switchplate.
Before servicing unit, switch all power off at the service panel and lock the service disconnecting means to prevent power from being switched on accidentally. When the service discon­necting means cannot be locked, securely fasten a prominent warning device, such as a tag, to the service panel.
Disconnect all power to the unit.
1. Place the heater snugly into its mounting bracket until approx. 1/2 to 1” is left above the bracket as shown in diagram.
2. Slip the heater into its mounting hole.
3. Align the fastening hole in the bracket with the threaded screw hole in the plate. Fasten the heater to the switchplate.
4. Connect the heater wires to the terminal strip as indicated on the wiring diagram.
6

TYPICAL WIRING DIAGRAMS

Field Wiring Actuator
BRAY Series 70 Tunnel Damper Electric Actuator
Operation and Maintenance Manual
Wiring diagram for CW OPEN unit with form-ZZ (DPDT-DB) travel switches. (Drawn for actuator in its fully open [CW] Condition.)
Field Wiring Actuator
Wiring diagram for CCW Open Unit with form-ZZ (DPDT-DB) travel switches (Drawn for actuator in its fully closed [CW] condition)
Note: Bray Series 70 Tunnel Damper electric actuator wiring is the same, regardless of CW or CWW application. Control is achieved through field wiring.
7
BRAY Series 70 Tunnel Damper Electric Actuator
!
!
A Division of BRAY INTERNATIONAL, Inc.
R
DECIMAL INCH
PRIMARY UNITS
11/11/2014
ERN-161731
GA-03075
DRAWING NO.
RELEASED
ERN
3
REV.
BUSA
DIVISION
3 OF 5
SHEET
THIRD ANGLE
CERTIFIED CORRECT BY
BUSA Jim Schmidt
11/11/2014
PRESSURE RATING
FLANGE DRILLING
BRAY ORDER NO.
THE INFORMATION CONTAINED HEREIN SHALL NOT BE COPIED, TRANSFERRED, CONVEYED OR DISPLAYED IN ANY MANNER THAT WOULD VIOLATE ITS PROPRIETARY NATURE WITHOUT THE EXPRESS WRITTEN PERMISSION OF BRAY INTERNATIONAL,INC.
BUSA Cindy Downey
SERIES 70, SIZE 30 - NYCTA MODEL
ELECTRIC ACTUATOR
ISOMETRIC EXPLODED VIEW
DECIMAL INCH
PRIMARY UNITS
11/11/2014
ERN-161731
GA-03075
DRAWING NO.
RELEASED
ERN
3
REV.
BUSA
DIVISION
4 OF 5
SHEET
THIRD ANGLE
CERTIFIED CORRECT BY
BUSA Jim Schmidt
11/11/2014
PRESSURE RATING
FLANGE DRILLING
BRAY ORDER NO.
THE INFORMATION CONTAINED HEREIN SHALL NOT BE COPIED, TRANSFERRED, CONVEYED OR DISPLAYED IN ANY MANNER THAT WOULD VIOLATE ITS PROPRIETARY NATURE WITHOUT THE EXPRESS WRITTEN PERMISSION OF BRAY INTERNATIONAL,INC.
BUSA Cindy Downey
SERIES 70, SIZE 30 - NYCTA MODEL
ELECTRIC ACTUATOR
ISOMETRIC EXPLODED VIEW
A Division of BRAY INTERNATIONAL, Inc.
R
DECIMAL INCH
PRIMARY UNITS
11/11/2014
ERN-161731
GA-03075
DRAWING NO.
RELEASED
ERN
3
REV.
BUSA
DIVISION
5 OF 5
SHEET
THIRD ANGLE
CERTIFIED CORRECT BY
BUSA Jim Schmidt
11/11/2014
PRESSURE RATING
FLANGE DRILLING
BRAY ORDER NO.
THE INFORMATION CONTAINED HEREIN SHALL NOT BE COPIED, TRANSFERRED, CONVEYED OR DISPLAYED IN ANY MANNER THAT WOULD VIOLATE ITS PROPRIETARY NATURE WITHOUT THE EXPRESS WRITTEN PERMISSION OF BRAY INTERNATIONAL,INC.
BUSA Cindy Downey
SERIES 70, SIZE 30 - NYCTA MODEL
ELECTRIC ACTUATOR
ISOMETRIC EXPLODED VIEW
Operation and Maintenance Manual

DISASSEMBLY AND ASSEMBLY

Tools required:
NOTE: Assembly is the opposite of removal
See Appendix A for a complete list of basic tools.
2. Disconnect motor wires from the 3-terminal strip (motor neutral, open, and close).
3. The switchplate can be independently disassembled.
4. To remove the Gearmotor, first disconnect the motor leads which run to the capacitor, and unscrew the mounting screws (four lower, one upper). The motor can now be removed vertically out of the unit. Note: do not misplace the alignment pin.
5. To remove the worm shaft spur gear, remove the spring pin using a 3⁄32" punch, then slide the gear off the end of the worm shaft for Housing Size 12 . Remove bowed E-clip retainer for Housing Size 30.
6. To remove the output drive worm gear, back off both mechanical travel stops. Remove the retaining ring and thrust washer, then lift the output drive worm gear out of its base.
7. The handwheel is held by a spring pin.
Procedure:
Turn off all power and lock out service panel before installing or modifying any electrical wiring.
1. Remove the switchplate by unscrewing the seven Phillips head mounting screws. The switchplate should lift out as an assembly with the camshaft attached.
WARNING
CAUTION
8. Further disassembly of the unit requires special tools and procedures, and thus will not be covered in this manual.
8
BRAY Series 70 Tunnel Damper Electric Actuator
Operation and Maintenance Manual

APPENDIX A - BASIC TOOLS

Common To All Units
Terminal connections, cam adjustment
All switches, terminal strip, torque switch plate
Switchplate screws, capacitor
Screwdriver, 1/4” tip flat tip blade
Screwdriver, No.1 Phillips
Screwdriver, No.2 Phillips
Housing Size 12 Housing Size 30
Mounting nuts (small pattern) Wrench, 1/2” Mounting nuts, travel stop jam nuts Wrench, 3/4”
Mounting nuts (large pattern) Wrench, 3/4” Cover captivated capscrews Hex key, 3/8”
Cover captivated capscrews Hex key, 5/16” Travel stop adjusting studs Wrench, 3/4”
Travel stop adjusting bolts Wrench, 9/16” Motor mount socket head shoulder bolt Hex key, 5/32”
Travel stop nuts Wrench, 9/16” Motor mount socket head cap screws Hex key, 3/16”
Motor mount socket head capscrew Hex key, 5/32” Conduit Entry Plug Hex key, 9/16”
Conduit Entry Plug Hex key, 9/16”

APPENDIX B - ACTUATOR TROUBLESHOOTING CHART

Problem PoSSible cauSe SolutioNS
Override is engaged Push handwheel in all the way
Actuator does not operate
Actuator operates in reverse directions
Actuator does not fully close damper (or open damper)
Engaging override handwheel does not shut off motor
Disengaging override hand­wheel does not restart motor
Motor runs but worm and gear segment do not
Corrosion inside unit
Wiring is incorrect Check wiring and power supply
Actuator motor has reached its thermal shutdown temperature
Field wiring is reversed Rewire field wiring
Limit switches are depressed Readjust travel limit switches
Mechanical travel stop is stopping actuator Adjust mechanical travel stops
Damper torque requirement is higher than actuator output
Voltage power supply is low Check power source.
Override pin is corroded or damaged
Override switch is damaged Replace switch
Not completely disengaged Push handwheel in as far as possible (no yellow showing)
Override pin is damaged or and does not activate switch
Incorrect wiring of override switch Check wiring
Worm gear segment is not meshing with worm
Pin/Key on Worm/Motor drive gear sheared Replace Pin/Key on drive gear
Condensation forming Test heater wiring, should have constant power
Water leaking in Check all seals and possible water entry through conduit
Allow time to cool
Manually override out of seat, try angle seating or larger actuator
Clean and check for smooth operation of the override switch pin
Replace override pin
Remove switchplate and inspect, adjust travel stops to prevent gear disengaging
9
BRAY Series 70 Tunnel Damper Electric Actuator Operation and Maintenance Manual
1
2
3
4
5
6
80
79
78
77
76
75
74
73 72
71 70
69
68
67
66
65
64
63 62
61
7
8 9
10
11
27 28
29 30
31
32 33
12
13 14
15
16
17
18
19
20 21
22 23
24
25 26

EXPLODED VIEW SERIES 70 TUNNEL DAMPER MODEL HOUSING SIZE 12

ON / OFF
1 COVER PLATE WITH STUD 2 OIL RESISTANT GASKET 3 COVER FASTENING SCREW 4 COVER 5 O RING-S271 6 STEEL BACK PLATE 7 WASHER 8 HEX NUT,NYLOCK 9 INDICATOR SHAFT ASSY 10 CCW SWITCH LABEL 11 CW SWITCH LABEL 12 SWITCH MOUNTING SCREW 13 FIBER WASHER 14 SWITCH ASSY,CCW 15 SWITCH ASSY,CW 16 COVER PLATE 17 PAN HD SCREW 18 HEATER MOUNTING BRACKET 19 HEATER 20 WIRE ASSEMBLY 21 INSULATOR 22 O’RIDE SWITCH(SPDT FORM C) 23 SCREW, PAN HEAD 24 OVERRIDE SWITCH TRIGGER PIN 25 BUSHING 26 THRUST WASHER 27 RETAINING RING 28 OUTPUT WORM GEAR SEGMENT 29 O RING-S-128 30 CAPACITOR 31 TERMINAL STRIP 32 ARMACELL TUBING 33 OVERRIDE SPRING PIN 34 TRAVEL STOP BOLT 35 HEX NUT 36 NYLON FLAT WASHER 37 O RING
34
35
36
37
38 39
40 41
42
38 WORM SHAFT 39 OVERRIDE DRIVE PIN 40 SPRING PLUNGER 41 MANUAL OVERRIDE SHAFT 42 MANUAL OVERRIDE SLEEVE 43 O RING-S-126 44 O RING-S118 45 RETAINING RING 46 HAND WHEEL, CW TO OPEN 47 HANDWHEEL WARNING LABEL 48 HANDWHEEL CCW TO OPEN 49 PIN,SLOT SPRING 1/8”DIA 50 MANUAL OVERRIDE BUSHING 51 THRUST WASHER 52 THRUST ROLLER BEARING 53 THRUST WASHER 54 DISC SPRING 55 WORM 56 WORM GEAR ROLL PIN 57 RETAINING RING 58 THRUST WASHER 59 BASE 60 3/4”-14 NPT PLUG 61 NAME TAG 62 BUSHING 63 GEAR SPACER 64 DOWEL PIN 65 DRIVE GEAR 66 RETAINING RING 67 GEARMOTOR 68 LOCK WASHER 69 SOCKET HEAD CAP SCREW 70 CONDUIT WIRE DEFLECTOR 71 SWITCH PLATE 72 WASHER TERMINAL GROUND 73 GROUND SCREW 74 FLAT HEAD SCREW 75 TERMINAL STRIP TAG: 1 - 9 76 TERMINAL STRIP 77 SCREW 78 TERMINAL STRIP TAG: 10 - 18 79 RELAY KIT 80 SCREW, PAN HEAD
10
51
52
53
54
43 44 45
59
60
58
57
54
55
56
53
25 15 05
49
48
46
47
81
BRAY Series 70 Tunnel Damper Electric Actuator
Operation and Maintenance Manual

EXPLODED VIEW SERIES 70 TUNNEL DAMPER MODEL HOUSING SIZE 30

ON / OFF
1 COVER FASTENING SCREW
1
2 COVER 3 O-RING 4 CAM ASSEMBLY
2
3
4
76
75
74
73
72
71
70
69
68
67 66
65
64
63
62
61
60 59
58
57 56
5
6
7
8
9
10
20
21 22
23
24 25
26
27 28
11
12
13
14
15 16
17 18
19
5 SWITCH MOUNTING SCREW 6 FIBER WASHER 7 SWITCH ASSY,CCW 8 SWITCH ASSY,CW 9 CW SWITCH LABEL 10 CCW SWITCH LABEL 11 SWITCH PLATE COVER 12 PAN HD SCREW 13 HEATER MOUNTING BRACKET 14 HEATER 15 WIRE ASSEMBLY 16 INSULATOR 17 O’RIDE SWITCH(SPDT FORM C) 18 SCREW, PAN HEAD 19 OVERRIDE SWITCH TRIGGER PIN 20 BUSHING 21 THRUST WASHER 22 RETAINING RING 23 OUTPUT WORM GEAR SEGMENT 24 O RIBG-S-232 25 CAPACITOR 26 TERMINAL STRIP 27 ARMACELL TUBING 28 OVERRIDE SPRING PIN 29 TRAVEL STOP BOLT 30 LOCK NUT 31 NYLON FLAT WASHER 32 O-RING 33 WORM SHAFT 34 OVERRIDE DRIVE PIN 35 SPRING PLUNGER 36 MANUAL OVERRIDE SHAFT
29
37 MANUAL OVERRIDE SLEEVE
30 31 32
33
34
36
35
37 38 39 40
38 O RING-S-126 39 O RING-S118 40 RETAINING RING, INTERNAL 41 HAND WHEEL, CW TO OPEN 42 HANDWHEEL WARNING LABEL 43 HAND WHEEL, CCW TO OPEN 44 PIN,SLOT SPRING 1/8”DIA 45 MANUAL OVERRIDE BUSHING 46 THRUST WASHER 47 THRUST ROLLER BEARING 48 THRUST WASHER 49 DISC SPRING 50 WORM 51 WORM GEAR ROLL PIN 52 RETAINING RING,EXT 53 THRUST WASHER 54 BASE 55 3/4”-14 NPT PLUG 56 NAME TAG 57 BUSHING 58 DRIVE GEAR KEY 59 DRIVE GEAR 60 RET RING, BOWED E-RING 61 GEARMOTOR 62 LOCK WASHER 63 SOCKET HEAD CAP SCREW 64 DOWEL PIN 65 SOCKET HEAD SHOULDER SCREW 66 WIRE ENTRY GUARD 67 SWITCH PLATE 68 WASHER,GROUND TERMINAL 69 GROUND SCREW 70 FLAT HEAD SCREW 71 TERMINAL STRIP TAG: 1 - 9 72 TERMINAL STRIP TAG: 10 - 18 73 TERMINAL STRIP 74 SCREW 75 RELAY KIT 76 SCREW, PAN HEAD
46
47
48
49
54
55
5253
50
51
49
46
47
48
45
44
42
43
41
11
BRAY Series 70 Tunnel Damper Electric Actuator Operation and Maintenance Manual
12
BRAY Series 70 Tunnel Damper Electric Actuator
Operation and Maintenance Manual
13
R
CONTRO LS
A Division of BRAY INTERNATIONAL, Inc. 13333 Westland East Blvd. Houston, Texas 77041 281-894-5454 FAX 281/894-9499 www.bray.com
Bray® is a registered trademark of BRAY INTERNATIONAL, Inc. © 2014 Bray International. All rights reserved. OM-70TD-001 11-2014
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use