JADE™ ECONOMIZER MODULE
63-2700—11
4
sensor is required for all applications and is mounted in
the mixed air section of a rooftop unit either directly to the
sheet metal using self tapping sheet metal screws or in the
air stream using the duct mounting kit. Duct mount kit is
part number 50053060-001.
Optional OA, RA
a
and DA
b
Sylkbus sensors communicate
with the W7220 on the two-wire communication bus and
can either be wired using a two pin header or using a side
connector. Each Sylkbus sensor includes a two pin side
connector with the packaging. The SKU number of the
Sylkbus sensor is C7400S. All OA, RA and DA sensors are
the same SKU number. The sensor is set for the
appropriate type of sensing using the three position DIP
switch located on the sensor. OA position is OFF, OFF, OFF;
RA is ON, OFF, OFF and DA is OFF, ON, OFF. During
installation the sensors are set for the usage desired. See
“Sylk Bus Sensor Wiring” on page 7 for DIP switch details.
NOTE:
The protective film on the dip switch is only nec-
essary during the factory assembly process. Sim-
ply push through the film to set the dip switches;
this will not harm the device.
Once installed, a sensor can be changed to a different
application by simply changing the DIP switch setting.
Sensor Mounting
The sensors can be mounted directly on to the sheet metal
of unit or can be mounted in the air stream using the duct
mounting kit (order separately).
The kit contains a rod to hold the sensor in the duct, a
flange to secure the sensor rod to the duct wall and fill the
hole and a gasket to prevent air from leaking through the
duct wall. There are five (5) kits in each bag assembly. See
Fig. 2.
The rod has slots for threading the wire to prevent loose or
hanging wire in the duct and can be adjusted for 6 to 12
inch length. The flange has extended relief for ease of
mounting. See Fig. 3.
Fig. 2. Duct Mounting Kit (Part No. 50053060-001).
Fig. 3. Duct Mounting Adjustments.
WIRING
All wiring must comply with applicable electrical codes
and ordinances, or as specified on installation wiring
diagrams. Module wiring in the field is terminated to the
four screw terminal blocks located on the left and right
sides.
Module wiring at the OEM factory is terminated via the
header pin terminals located on the left and right sides.
The header terminal pins and the terminal blocks have
common terminations for the appropriate input or output.
See OEM wiring diagram in Fig. 20.
The remainder of this section describes the wiring for the
JADE™ Economizer module, W7220A.
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 unit.
a
RA = Return Air
b
DA = Discharge Air
ROD - 1 PIECE
FLANGE - 1 PIECE
GASKET - 1 PIECE
M32281A
WIRE HOLDER
EXTENDED RELIEF
(FOR CORRECT MOUNTING)
M32282A
LENGTH ADJUSTS
6-12 INCHES