CVS-21HA.rev.03
9
MOUNTING THE CONTROLLER
Open the latch and lift the cover. Remove the black caps located on each
of the four mounting holes. Mount the enclosure to the wall using four
screws. Insert the screws into the mounting holes and tighten. Fasten the
black caps onto the mounting holes.
CONNECTING THE EQUIPMENT
To connect the fans and heating units to the controller, refer to the wiring
diagram enclosed with this user's guide.
Set the voltage switch located inside the enclosure to the appropriate
line voltage.
Use the electrical knockouts provided at the bottom of the enclosure.
Do not make additional holes in the enclosure, particularly on the
side of the enclosure when using a computer communication
module.
If metallic cable holders are used to secure cables entering the
enclosure, use the ground plate provided with the controller. Connect
the ground wire to the ground stud on the plate.
When connecting heating units to the controller, it may be necessary
to install a transformer in order to adapt the voltage to the heating
units.
ALL WIRING MUST BE DONE BY AN AUTHORIZED ELECTRICIAN
AND MUST COMPLY WITH APPLICABLE CODES , LAWS AND
REGULATIONS. BE SURE POWER IS OFF BEFORE DOING ANY
WIRING TO AVOID ELECTRICAL SHOCK AND EQUIPMENT
DAMAGE.
CONCERNING THE ALARM CONNECTION: There are two types of
alarms in the industry. One type activates when current is cut off at its
input, whereas the other activates when current is supplied at its input. For
an alarm of the first type, use the NO terminal as shown in the wiring dia-
gram. For an alarm of the second type, use the NC terminal.
