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Sub-Zero SZ-CRC-1100A

Sub-Zero SZ-CRC-1100A
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COLD ROOM CONTROLLER
SZ-CRC-1100A
USER MANUAL
www.pvrcontrols.com
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Sub-Zero SZ-CRC-1100A Specifications

General IconGeneral
ModelSZ-CRC-1100A
BrandSub-Zero
CompatibilitySub-Zero Refrigeration Units
Frequency60 Hz
Featuresalarm notifications
Operating Temperature32°F to 100°F (0°C to 38°C)
Humidity Range10% to 90% non-condensing

Summary

Operation

Key Introduction

Set point

To set the cut-out point of the controller.

High Set Alarm P2 Parameter

To set the maximum allowable high temperature limit.

Low Set Alarm P3 Parameter

To set the minimum allowable low temperature limit.

Room Probe Diff. P4 Parameter

To set compressor differential (hysteresis).

Room Probe Calib P5 Parameter

To set room probe offset calibration.

Parameter Settings - Compressor Control

COMP. TIME DELAY P6 Parameter

To set time delay between compressor relay restart time.

COMP IN PRB FAIL P8 Parameter

To set compressor relay status on room probe failure.

DOOR ALARM DLY P9 Parameter

To set door open alarm delay.

Parameter Settings - Fan Control

FAN STOP TEMP. L1 Parameter

Evaporator fan stop coil temperature.

FAN TIME DELAY L2 Parameter

Time delay between evaporator fan relay restart.

FAN IF COMP OFF L3 Parameter

Evaporator fan operation when compressor is off.

COIL PROBE DIFF. L4 Parameter

Evaporator fan differential (hysteresis).

COIL PROBE CALIB L5 Parameter

To set coil probe offset calibration.

FAN WHEN DEFROST L6 Parameter

Evaporator fan status during defrost.

FAN WITH DOOR L7 parameter

Evaporator fan status on door open.

Parameter Settings - Defrost & Special Functions

CYC. ON TIME ON Time Parameter

Cyclic ON time of compressor relay.

CYC. OFF TIME OFF Time Parameter

Cyclic OFF time of compressor relay.

COND START DELAY d1 Parameter

To set condenser delay to start before compressor.

COND WHEN DEF. d2 Parameter

Condenser relay status during Hot gas defrost.

QUICK FREEZE SP CS Parameter

To set quick freeze set point.

QUICK FREEZE DUR Ct Parameter

To set Quick Freeze time duration.

POWER ON DEFROST E0 Parameter

To set/activate power up defrost cycle.

TYPE OF DEFROST E1 Parameter

To set type of defrost.

DEF. TIME CALC. E2 Parameter

To set type of computation for defrost frequency.

DEF. FREQUENCY E3 Parameter

To set defrost frequency.

MAX. DEF. DURATION E4 Parameter

To set maximum defrost duration.

MAX. DEF. TEMP E5 Parameter

Defrost stop temperature (Evap. coil probe).

HEATER CHK. FUNC E6 Parameter

Alarm to check heater function.

DISP. DURING DEF E7 Parameter

To set display during defrost.

PROB. FAIL DEF. DUR E8 Parameter

To set maximum defrost duration on coil probe fail.

POWER ON ALM DLY AL Parameter

Power on time delay for Alarm (HT/LT).

RESET PARAMETERS FS Parameter

Revert to factory set parameters.

END OF PROG. End Parameter

To end programming.

Operating Messages and Icon Status

Technical Data

Fixing and Dimensions

Suggested Wiring Diagram

Controller Installation Notes

Probe Placement

To give a correct reading, the probe must be installed in a place protected from thermal influences.

Wiring Caution

The probe and its corresponding wires should never be installed in a conduit next to control or power supply lines.

Improper Wiring Warning

Improper wiring may cause irreparable damage and personal injury.

Maintenance and Notices

Maintenance - Cleaning

Clean the surface of the controller with a soft moist cloth.

Information Notice

Information in this document is subject to change without prior notice.

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