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Troubleshooting - Honeywell C7400S Installation Instructions

Enthalpy sylk bus sensor

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WIRING
All wiring must comply with applicable electrical codes and
ordinances, or as specified on installation wiring diagrams.
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or property
damage.
Disconnect power supply before beginning wiring, or
making wiring connections, to prevent electrical shock
or equipment damage.
CAUTION
Equipment Damage Hazard.
Electrostatic discharge can short equipment
circuitry.
Ensure that you are properly grounded before
handling the sensor.
Prepare wiring as follows:
1. Strip 1/2 in. (13 mm) insulation from the conductor.
2. Cut a single wire to 3/16 in. (5 mm). Insert the wire in
the required terminal location and tighten the screw.
3. Pull on each wire in all terminals to check for good
mechanical connection.
Sylk Bus Sensor Wiring
Use Fig. 4 and Table 1 to locate the wiring terminals for each
Sylk Bus sensor.
Use Fig. 4 and Table 2 to set the DIP switches for the desired
use of the sensor.
SYLK BUS
TERMINALS
(1 AND 2)
Fig. 4. Sylk Bus sensor DIP switches.
DIP
SWITCH
LABEL
DIP
SWITCHES
(3)
SYLK BUS
2 PIN "EURO"
CONNECTOR
M32271
C7400S ENTHALPY SYLK BUS SENSOR
Table 1. SYLK Bus Sensor Wiring Terminations
Terminal
Nbr
Label
1
S-BUS SYLK Bus Sylk Bus Communications
2
S-BUS SYLK Bus Sylk Bus Communications
a
Terminals are polarity insensitive.
Table 2. SYLK Bus Sensor DIP Switch Settings.
DIP Switch Positions for Switches 1, 2, & 3
Use
1
OFF
a
DA
ON
b
RA
c
OFF
OA
a
DA = Discharge Air
b
RA = Return Air
c
OA = Outside Air
CHECKOUT
Refer to the JADE™ Economizer Module (Model W7220)
Installation Instructions (Honeywell form 62-0331).

TROUBLESHOOTING

Refer to the JADE™ Economizer Module (Model W7220)
Installation Instructions (Honeywell form 62-0331).
3
Type
Description
(Sensor Bus)
(Sensor Bus)
2
ON
OFF
OFF
a
.
3
OFF
OFF
OFF
62-0332—03

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