Справочник Пользователя для Honeywell W7750A
EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER
74-2958—1
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Step 6. Configure Controllers
Excel E-Vision PC Software is used to configure W7750
Controllers to match their intended application. The E-Vision
User Guide, form number 74-2588 provides details for
operating the PC software.
Controllers to match their intended application. The E-Vision
User Guide, form number 74-2588 provides details for
operating the PC software.
W7750 Controllers are shipped from the factory with a default
hardware configuration. On power-up, the controller
configuration parameters are set to the default values listed in
Table 20 in Appendix C. The controller can operate normally
in this mode (if the equipment and wiring match the default
setup), and given valid sensor inputs, the outputs are
controlled appropriately to maintain space temperature at the
default setpoint. The default I/O arrangement for the W7750A
hardware configuration. On power-up, the controller
configuration parameters are set to the default values listed in
Table 20 in Appendix C. The controller can operate normally
in this mode (if the equipment and wiring match the default
setup), and given valid sensor inputs, the outputs are
controlled appropriately to maintain space temperature at the
default setpoint. The default I/O arrangement for the W7750A
is printed on the terminal labels. Also see the wiring details in
Fig. 27 in Step 4, Prepare Wiring Diagrams. The labeled I/O
terminals are defined in Table 10.
Fig. 27 in Step 4, Prepare Wiring Diagrams. The labeled I/O
terminals are defined in Table 10.
Step 7. Troubleshooting
Troubleshooting Excel 10 Controllers and Wall
Modules
Modules
In addition to the following information, refer to the Installation
Instructions and Checkout and Test manual for each product.
Most products have a Checkout and Test section in their
Installation Instructions manual. If not, look for a separate
Checkout and Test manual. See the Applicable Literature
section for form numbers.
Instructions and Checkout and Test manual for each product.
Most products have a Checkout and Test section in their
Installation Instructions manual. If not, look for a separate
Checkout and Test manual. See the Applicable Literature
section for form numbers.
ML6464A1009
Direct Coupled Actuator, 66 lb-in. torque,
Series 60
Series 60
—
ML6474A1008
Direct Coupled Actuator, 132 lb-in. torque,
Series 60
Series 60
—
ML6185A1000
Direct Coupled Actuator, 50 lb-in. spring return Series 60
V5852A/V5862A
Two-way terminal unit water valve; 0.19, 0.29,
0.47, 0.74, 1.2, and 1.9 C
0.47, 0.74, 1.2, and 1.9 C
v
1/2 in. npt (13 mm)
or 2.9 and 4.9 C
v
3/4 in. npt (19 mm)
Use with M6410 Valve Actuator. Close-off rating
for 0.19 to 1.9 C
for 0.19 to 1.9 C
v
is 65 psi; for 2.9 and 4.9, C
v
is
45 psi. (Coefficient of volume or capacity index
C
C
v
= gallons per minute divided by the square
root of the pressure drop across the valve.)
V5853A/V5863A
Three-way mixing terminal unit hot water valve;
0.19, 0.29, 0.47, 0.74, 1.2, and 1.9 C
0.19, 0.29, 0.47, 0.74, 1.2, and 1.9 C
v
1/2 in.
npt (13 mm) or 2.9 and 4.9 C
v
3/4 in. npt (19
mm)
Use with M6410 Valve Actuator. Close-off rating
for 0.19 to 0.74 C
for 0.19 to 0.74 C
v
is 55 psi; 1.2 and 1.9 C
v
is 22
psi; 2.9 and 4.9 C
v
is 26 psi.
R8242A
Contactor, 24 Vac coil, DPDT
—
AT72D, AT88A, AK3310, etc. Transformers
—
EN 50 022
DIN rail 35 mm by 7.5 mm (1-3/8 in. by 5/16 in.) Obtain locally: Each controller requires 5 in.
—
Two DIN rail adapters
Obtain locally: Part number TKAD, from Thomas
and Betts, two for each controller.
and Betts, two for each controller.
Cabling:
—
Serial Interface Cable, male DB-9 to female
DB-9 or female DB-25.
DB-9 or female DB-25.
Obtain locally from any computer hardware
vendor.
vendor.
Honeywell
AK3791 (one twisted pair)
AK3792 (two twisted pairs)
AK3791 (one twisted pair)
AK3792 (two twisted pairs)
L
ON
W
ORKS
Bus (plenum): 22 AWG (0.34 mm
2
)
twisted pair solid conductor, nonshielded or
Echelon approved cable.
Echelon approved cable.
Level IV 140°F (60°C) rating
Honeywell AK3781 (one
twisted pair) AK3782 (two
twisted pairs)
twisted pair) AK3782 (two
twisted pairs)
L
ON
W
ORKS
Bus (nonplenum): 22 AWG (0.34
mm
2
) twisted pair solid conductor, nonshielded
or Echelon approved cable.
Level IV 140°F (60°C) rating
Honeywell AK3725
Inputs: 18 AWG (1.0 mm
2
) five wire cable
bundle
Standard thermostat wire
Honeywell AK3752 (typical or
equivalent)
equivalent)
Outputs/Power: 14 to 18 AWG (2.0 to 1.0 mm
2
) NEC Class 2 140°F (60°C) rating
Honeywell AK3702 (typical or
equivalent)
equivalent)
18 AWG (1.0 mm
2
) twisted pair
Non-plenum
Honeywell AK3712 (typical or
equivalent)
equivalent)
16 AWG (1.3 mm
2
) twisted pair
Non-plenum
Honeywell AK3754 (typical or
equivalent)
equivalent)
14 AWG (2.0 mm
2
) two conductor
Non-plenum
Table 11. Excel 10 W7750 Controller Ordering Information. (Continued)
Part Number
Product Description
Comments