4000 Series
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3460006-17_serial series 5000000
8.0 Sensor Validation:
Control/display sensor validation may be performed by removing the sensor mounting plate,
undoing the hook and loop fastener and extending the sensor cable to perform the needed validation.
Refer to section 4.0 Setup and Installation item 10 for sensor mounting plate location.
9.0 Options:
9.1 Remote contacts terminal block
The unit is supplied with remote signaling dry contacts (non-powered). Connections are made
to a terminal strip on the rear of the unit inside the plastic enclosure. Terminal locations are 1 & 2,
3 & 4 and 5 & 6. Terminals 1 & 2 and 3 & 4 are Profile function contacts. The internal contacts close
when a profile is started.
Terminals 5 & 6 are chamber door open contacts. The internal contacts close if the chamber door is
opened while a Profile is running.
Connecting to the remote contact terminals.
Locate the terminal enclosure on the back of the control area near the power cord. Remove the cover
from the enclosure by removing the 4 Philips head screws. Refer to figure 9.2.
Refer to the below chart for the state of the at various operational states of the 4000 series unit.
4000 Series Unit State – Remote Running Contacts
Contacts 1 & 2 Contacts 3 & 4
Contacts
5 & 6
Unit Unplugged
OPEN
OPEN
Unit Plugged in - Power Switch OFF
OPEN
OPEN
Unit Plugged in - Power Switch ON - Controller in "off"
state - no profile or defrost running
OPEN
OPEN
Profile 1,2, or 3 Initiated with Cycle Start Button
CLOSED
CLOSED
Cycle Complete Light Flashing
OPEN
CLOSED
Cycle Stop Button Pressed (controller goes into "off"
state)
OPEN
OPEN
Defrost Cycle is Active
OPEN
OPEN
Unit turned on - Profile 1, Profile 2, or Profile 3 running – Chamber door closed
OPEN
Unit turned on - Profile 1, Profile 2, or Profile 3 running – Chamber door opened
CLOSED
Unit turned on – Defrost cycle running – Chamber door closed
OPEN
Unit turned on – Defrost cycle running – Chamber door opened
OPEN
