Sub-Zero CRC-2020, User Manual

Page: 2 / 18

Index Index
01 02
Index Index
Introduction
Get to Know Your Controller
LED Indication.
4
7
Parameter List.
Key Introduction 5
3
Fault Messages. 6
DESCRIPTION PARAMETER
Pg.
No.
To set the cut-out point of the controller.
SET POINT
8
DESCRIPTION PARAMETER
Pg.
No.
Items Included.
4
8
To set other parameter
8
To set allowable high temperature limit.
To set allowable low temperature limit.
To set the differential for compressor
restart.
P2
P3
P4
9
9
10
To set probe calibration. P5 10
To set time delay between relay restart
time. P6 10-11
To set duration of defrost. P7 11
To set defrost frequency.
To set power on defrost delay.
P8
P9
11
11
To enable / disable buzzer. BUZ
12
This parameter is used to set power on
delay for alarm. AL
12
Under load limit for compressor current. C-UL 12
Over load limit for compressor current. C-OL
13
Current sensing delay. C2 13
To enable or Disable HP sensing. D0 13
To enable or disable LP sensing. D1
14
Fault sensing logic. D2 14
To set LP sensing delay.
To set reset mode for HP fault.
D3
D4
14
15
15
To set Compressor Relay status on
Probe Failure.
To set On cycle at room probe fail.
To set Off cycle at room probe fail.
To set Display at defrosting.
E1
TON
TOFF
E7
16
16
16
16
To set time delay to switch off the light .
To change password.
To view Compressor run Hours.
Clear Compressor Run Hours.
To set Unit ID.
LD
PW
CRH
CCRH
Unit ID
17
17
17
17
18
To activate Keypad Lock.
To enable/disable Power Switch.
To set display at power OFF mode.
LP
PO
PDIS
18
18-19
19
To restore default settings of the
controller. FS 19
End of programming.
EP
19
Technical Data 20
Caution & Warranty
21
30-31
Suggested Wiring Diagram
DI-D
OPS
To select AUX or compressor thermal
trip digital I/P
To Enable / Disable Oil Pressure Switch
(OPS) I/P.
15
21-28
Instruction manual for VMRC-10/3
CRC-2020 CRC-2020
29