88226673-01-03 Technical Reference Manual - (Production Iss 03 November 2020).pdf - 第16页

Issue 03 November 2020 DISCONNECT – This d e fines the period be tween the Temperature Signal to t h e TM TCM being rem o ved or disconn e cted and the TCM entering a SHUTDOWN p eriod. The DISCONNECT period is adjus t ab…

Issue 03 November 2020

FIG 16

If you have the condensate warning lights and the condensate tray is empty then

you will need to check the second condensate tray in the chiller (also check the

condensate hose for any kinks or blockages.

Disconnect and Shutdown Periods

The Control PCB is fitted with two rotary switches (FIG 17).

FIG 17

WARNING

ELECTRICAL HAZARD. Ensure Isolator is in the OFF

position before opening access panel.

Issue 03 November 2020

DISCONNECT – This defines the period between the Temperature Signal to the TM TCM

being removed or disconnected and the TCM entering a SHUTDOWN period. The

DISCONNECT period is adjustable between 0 – 9 minutes in 1 minute increments. The

default setting is 1 minute. The Amber beacon will flash rapidly during the DISCONNECT

period (FIG 18). If the Temperature Signal to the TCM is reinstated during the Disconnect

period, the TCM will continue to run and not enter a SHUTDOWN period.

SHUTDOWN – If on completion of the DISCONNECT period no Temperature Signal is

present, the TCM will cease operation and enter a SHUTDOWN period. The

SHUTDOWN period is adjustable between 0 – 9 minutes in 1 minute increments. The

default setting is 1 minute. The Amber beacon will flash slowly during the SHUTDOWN

period. If the Temperature Signal is reinstated during this period, the TCM will not

commence operation until the SHUTDOWN period is complete. The Amber beacon will

illuminate continuously on completion of the SHUTDOWN period with no Temperature

Signal present.

FIG 18

TEMPERATURE DISPLAY – The temperature display on the printer MMI should read

the same as the temperature displayed on the PID controller. If this is not the case VR1

can be adjusted so that both displays read the same. See FIG19

FIG19

Issue 03 November 2020

Preventative Maintenance

Condenser Fan/Coil

To access the fan you will need to be removed 4 x retaining screws (FIG20)

Check that the Condenser Core and fan are free from obstruction (FIG 21.

FIG 20 FIG21

WARNING

BEWARE OF MOVING PARTS. Allow time for fan rotation to

cease before removing lid.

WARNING

ELECTRICAL HAZARD. Ensure Isolator is in the OFF

position before removing lid.