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When
this product . . .
installing
1. Read these instructions carefully. Failure to follo
them could damage the product or cause a
hazardous
condition.
2. Check the ratings given in the SPECIFICATION:
section and on the product to make sure that the
product is suitable for the application.
3. The installer must be a trained, experienced
service or installation technician.
4. After installation is complete, check system
operation as provided in these instructions.
5. Verify that the W7620s are installed in accordan
with the job drawings and these installation
procedures.
6. Verify that the T7660 Space Temperature Sensor
installed in accordance with job drawings and the
T7660 Specification Sheet (63-4219).
Disconnect power supply before beginning
installation to prevent electrical shock and
equipment damage.
radiate radio frequency energy.
and used in accordance with the instruction
manual, it may cause interference to radio
communications. Pursuant to FCC Rules,
Subpart J of Part 15, this equipment has
been tested and found to comply with the
limits for a Class A computing device. These
limits are designed to provide reasonable
protection against interference when operating
in a commercial environment. Operating this
equipment in a residential environment is
likely to cause interference, in which case the
user at his own expense will be required to
take whatever measures necessary to correct
the interference.
I
surface-before removing the W7621 or W7622
expansion board from the antistatic bag.
Failure to do so might damage the board.
Mount the controller in a location that allows clearance
for wiring, servicing and removal of the cover.
1. Remove the cover by loosening the two side
screws (Figure 4) and mount the controller in a
location appropriate to the equipment being
controlled.
2. Use No. 8 sheet metal screws (obtain locally) to
secure the controller to the mounting surface
through the four key holes inside the c a s e ,
3. Test the controller and equipment operation.
4. Replace and secure the controller cover after
wiring is complete.
Mountlng Additional Boards
To install additional input or output expansion boards
(W7621 or W7622) which are not manufacturer installed
on the base board assembly (Figure 5) complete the
following:
1. Align the IO-pin connector (J4) or (J5) on the
not installed
baseboard with the 10-pin inverse connector on
the input board (J15) or output board (13).
2. Align the white plastic standoff tab with the hole
located near the lo-pin connector.
3. Lean the input or output board in at the base to
catch the metal tab located on the bottom of the
controller.
4. Snap the board into place
5. Secure the board into place by applying and
tightening the two board screws provided with
each expansion board.
7
I
63-4224
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