Carrier TRANSICOLD VECTOR 8100, Operation & Service Manual, Page: 157 / 294

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00057 CHECK REMOTE SWITCH 1 (REMS1)
• ACTIVATION: REMS1 is set to trigger an alarm if the switch is activated (opened or closed, depending on
switch type) for more than five seconds.
• UNIT CONTROL: May be configured as alarm only or alarm and shutdown.
• RESET CONDITION:
Alarm Only: Auto reset after the switch has de-activated for more than five seconds.
Shutdown: Auto reset after three minutes (minimum off time for switch activated condition) and the
switch has de-activated for more than five seconds.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active
alarm should clear itself (refer to reset condition above). Operate the unit through the appropriate modes to see
if any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
IF A SWITCH IS INSTALLED:
1. Determine What REMS1 Is Activated By - REMS1 may be connected to a compartment door or some
other device. Locate the device used as REMS1.
2. Check To See If REMS1 Has Activated - Inspect device used to activate REMS1. For example, Com-
partment door must be closed, and switch must be de-activated.
3. Check Configuration for REMS1 - Verify that Configuration is set for the type of switch being used (i.e.
when switch is activated, switch contacts are closed; etc). Configuration must agree with switch type.
Refer to
Section 5.2.3 .
4. Check Wiring
a. Visually inspect wiring to REMS1. Wiring must be connected.
b. Visually inspect condition of switch. Must not be damaged, wet, corroded, etc.
c. Check circuit. (See wiring schematic Section 10.3 .) With the switch contacts closed, check for
minimum 11 VDC from 2SVM-14 through the wiring and switch back to 2SVM-25.
5. Temporary Solution Tip - In the event of a defective switch that can not be repaired or replaced, and the
switch is forcing the unit into a shutdown or low speed, this action may be temporarily overridden by set-
ting the correct Functional Parameter. Set the OVERRIDE REMS1 SHUTDOWN Functional Parameter to
YES.
IF A SWITCH IS NOT INSTALLED:
1. Check Configurations - Any switch/sensor not present in the unit should not be Configured “ON”. Cor-
rect Configurations.
2. Check REM Connector - Locate and inspect 10 position connector for optional sensors and switches
(see wiring schematic Section 10.3 ). Connector must have cap on. No corrosion or moisture inside con-
nector. If there is a problem with the connector and there are no remote sensors or switches in the unit,
the connector may be removed and each individual wire separated from the others, terminated and insu-
lated with heat shrink.