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CW
60
60
CW CCW
45
45
CCW
Excel 10 W7751H Smart VAV Actuator
INSTALLATION INSTRUCTIONS
BEFORE INSTALLATION INSTALLATION
The W7751H Smart VAV Actuator is a factory-combined Horizontally mount the W7751H on the damper shaft and
Excel 10 Variable Air Volume (VAV) Box Controller and an allow clearance for wiring, servicing and module removal.
ML6174 Direct-Coupled Actuator with De-clutch mechanism. Avoid mounting the W7751H in areas where acid fumes or
The actuator/controller assembly is fiel
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EXCEL 10 W7751H SMART VAV ACTUATOR 4-1/16 (103) 1-13/16 (46) 1-5/16 (33) 3-5/8 (92) CW 1 (25) MAINTAIN A MINIMUM DISTANCE 60 60 OF 3 IN. (76 MM) CW CCW 1-13/16 FROM OTHER (46) DEVICES OR PANELS 45 FOR REMOVING 45 CONTROLLER COVER 5-7/8 (149) DE-CLUTCH LEVER 3-3/4 (95) MAINTAIN A MINIMUM DISTANCE OF 4 IN (100 MM) FROM OTHER DEVICES OR PANELS FOR ATTACHING PNEUMATIC AIR FLOW TUBING 3-3/4 (95) DE-CLUTCH 2-1/8 LEVER (54) 3/4 1-15/16 (49) 3/4 M10523 (19) (19) Fig. 2. W7751H mounting dimen
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EXCEL 10 W7751H SMART VAV ACTUATOR CW CW 60 60 60 60 CCW CW CCW CW 45 45 45 45 PULL TOP OF COVER OUT, THEN DOWN, FOR REMOVAL CIRCUIT BOARD TERMINAL BLOCKS MOUNTING TAB M10000 Fig. 3. Cover removal and mounting tab/terminal block access. 3. The direction the damper shaft rotates to open the damper (CW or CCW), see Fig. 5. 1MM (1/32 IN.) 4. The damper opening angle (45, 60, or 90 degrees). TYPE A DAMPER AIR FLOW CW TO OPEN, CCW TO CLOSE TYPE B DAMPER AIR FLOW CCW TO OPEN, CW TO CLOSE M2067B
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60 60 CW CCW 45 45 CW EXCEL 10 W7751H SMART VAV ACTUATOR degree CW slot, the damper actuator must be driven fully open (CCW). To do this, the SHAFT ADAPTER controller on the W7751H must be wired, powered, and connected to the portable PC via ® the Serial LonTalk Adapter (SLTA). The SLTA connects to the controller on the W7751H via the jack for Network Access on T7770 Wall Module or by the B-Port on the Q7750A Zone Manager. From E-Vision Software, drive the actuator on the W7751H fully C
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EXCEL 10 W7751H SMART VAV ACTUATOR IMPORTANT — To prevent VAV air flow connector breakage, use The minimum position set screw on the actuator is caution when removing tubing from it. Always pull not available on the W7751H device. straight away from connector; never remove by pulling at an angle. SCREWDRIVER Wiring All wiring must comply with applicable electrical codes and ordinances, or as specified on installation wiring diagrams. NOTES: — For multiple controllers operating from a single
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90 75 60 45 EXCEL 10 W7751H SMART VAV ACTUATOR PROCEDURE W7751B 1. Determine desired switching action (i.e, if switch 28 energizing is to occur during CW or CCW rotation). With switch cam as shown in Fig. 12, the normally closed EARTH contact opens in CCW rotation. The normally open GROUND contact closes. Conversely, with switch cam as shown in Fig. 13, the normally closed contact opens during CW 9 10 rotation and the normally open contact closes. W7751H OR J COM NO W7751D,F NC 32 CCW EART
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EXCEL 10 W7751H SMART VAV ACTUATOR 2 • Approved cable type is Level IV 22 AWG (0.34 mm ) plenum or non-plenum rated unshielded, twisted pair, solid conductor wire: SWITCH CAMS — For nonplenum areas, use CMP listed cable. — In plenum areas, use CMP listed cable. • Do not bundle output wires with sensor, digital input or LONWORKS® Bus wires. • Ensure that neither LONWORKS® Bus wire is grounded. • In noisy (high EMI) environments, avoid wire runs parallel to noisy power cables, motor control ce
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EXCEL 10 W7751H SMART VAV ACTUATOR COMM COMM OUT OUT 2 2 9 8 7 6 5 4 321 9 8 7 6 5 4 321 JACK FOR JACK FOR E-BUS E-BUS T7770C NETWORK AIR FLOW T7770C NETWORK ACCESS DP PICKUP WALL ACCESS WALL MODULE MODULE AIR FLOW AIR FLOW DP PICKUP DIRECTION AIR FLOW DIRECTION LOW MICROBRIDGE W7751H DP SENSOR LOW HI MICROBRIDGE W7751H DP SENSOR TRIAC HI EQUIVALENT NOT EARTH GROUND CIRCUIT TRIAC EQUIVALENT NOT EARTH GROUND CIRCUIT E-BUS WALL MODULE 12 34 5 6 7 8 9 10 12 11 E-BUS 2 WALL MODULE 12 34 5
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EXCEL 10 W7751H SMART VAV ACTUATOR CHECKOUT COMM OUT W7751H Checkout 2 9 8 7 6 5 4 321 Step 1. Wiring Connections Inspect all wiring connections at the W7751H and the T7770 terminals, and verify compliance with installation diagrams. If any wiring changes are required, first be sure to remove JACK FOR power from the controller before starting work. Pay particular E-BUS attention to: T7770D NETWORK — 24 Vac power connections. Verify multiple controllers being ACCESS WALL powered by the sa
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EXCEL 10 W7751H SMART VAV ACTUATOR NOTE: During item 2, the occupancy override state of Alarms the controller changes based on how long the The commissioning tool is used to perform the ID Assignment bypass/override button is depressed. For task. Once the ID Assignment and commissioning has been example, if the button is pressed for 6 sec., the done, check the controller status LED to determine if there are node sends the Service Pin Message, AND the any alarms. node enters Continuous Un
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EXCEL 10 W7751H SMART VAV ACTUATOR SERIES OR PARALLEL W7751H FAN TRIAC EQUIVALENT NOT EARTH GROUND CIRCUIT ML7984B PWM VALVE ACTUATOR CONTACTOR (24 VAC) E-BUS WALL MODULE 12 34 5 6 7 8 9 10 12 11 T6 T5 C B W R 2 REHEAT VALVE 1 ACTUATOR 24 VAC 1 MAKE SURE ALL TRANSFORMER/POWER WIRING IS AS SHOWN; REVERSING TERMINATIONS WILL RESULT IN EQUIPMENT MALFUNCTION. 2 M10529 TO ASSURE PROPER ELECTRICAL CONTACT, WIRES MUST BE TWISTED TOGETHER BEFORE INSERTING INTO THE TERMINAL BLOCK. Fig. 20. W7751H to
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EXCEL 10 W7751H SMART VAV ACTUATOR — W7751H2025 Series 9, T7770C or D Wall Module Override LED — W7761A2010, The remote override LED, located on either the T7770C or — Q7750, T7770D Wall Module will display the Manual Override mode of — Q9200, the controller. The modes are: — XFL521, XFL522, XFL523, XFL524, 1. LED = Off. No override active. — XL500, 2. LED = Continuously On. Bypass mode (timed Occupied —XLINK. override). 3. LED = One flash per second. Continuous Unoccupied Connect the
