FScurtis ECO Scroll Series, Instruction Manual, Page: 20 / 40

ES08 ‐ 15 Controller v1.01.05
2022 ‐ 02 ‐ 03 FS ‐ Curtis Page 18
Note: To utilise the single contact remote control function, connect one latching switch between terminals
24G and X06 on Terminal Board 1 (TB1) inside the compressor’s electrical cabinet. Closing this 24 V DC
control circuit by means of the switch will send an “on” or “start” signal to the controller and opening the
circuit will send an “off” or “stop” signal. The compressor’s on or off status can be ascertained visually by
checking the two-position remote-control switch or an indicator light wired into this circuit.
It is recommended to use the single contact option for remote control operation.
Note: To utilise the double contact remote control function, connect one non-latching switch between
terminals 24G and X06 for the “start” command and another non-latching switch between terminals 24G and
X07 for the “stop” command. Momentarily closing either of these 24 V DC control circuits by pulsing one
switch or the other will send the relevant “on” (i.e. “start”) or “off” (i.e. “stop”) signal to the controller.
Note: Neither the single nor double contact remote control functions are compatible with sequential control
operation of multiple compressor sets. Only a single standalone compressor set can be operated by remote
control.
Note: Incorrect rotation of the drive motor will cause permanent damage to the compressor air-end that is
not a warrantable fault. Ensure that the 3-phase electrical power supply is connected with clockwise red →
white → blue phase sequence rotation BEFORE starting the compressor. When using the main motor test
function after carrying out any electrical installation, maintenance or repair work, visually check and confirm
that each drive motor and air-end is rotating COUNTER-CLOCKWISE when viewed looking onto its drive
shaft.
Note: When using the fan motor test function, check and confirm that the fan discharges upwards and away
from the cooling air exhaust vent on top of the compressor set. Temporarily affixing a piece of A4 paper with
adhesive tape along one long edge only above the vent can provide reliable indication of the cooling airflow’s
direction.
Note: Increasing either the stop delay or stop interval above the recommended 2-second value may cause
nuisance activation of the discharge air pressure shutdown alarm.
2.7 Calibration Menu
The calibration menu is accessed via the system menu using either the service or factory passwords. The
set values should NOT be altered without first seeking guidance from the manufacturer. The calibration menu
screen is shown in Figure 2.7.