Service Manual
Table Of Contents
- Safety Notices
- Definitions
- General Information
- Installation
- Stacking Two Ice Machines on a Single Storage Bin
- Location of Ice Machine
- Clearance Requirements
- Dual Evaporator Model Installation on a Manitowoc Bin
- Ice Machine on a Dispenser Installation
- Water Supply and Drains
- Lineset Applications
- QuietQube® Remote Condensing Unit
- Additional Refrigerant Charge For 51' to 100' Line Sets
- Maintenance
- Operation
- Menu Navigation
- Component Check Procedures
- Control Board, Display And Touchscreen
- Operating an ice machine without a Touchscreen
- Control Board Relay Test
- Programming A Replacement Control Board
- USB Flash Drive Specifications and Formatting
- Exporting Data to a Flash Drive
- Upgrading Firmware with a Flash Drive
- Main Fuse
- Bin Switch
- Water Level Control Circuitry
- Ice Thickness Probe (Initiates Harvest)
- Bin Level Probe
- Thermistors
- High Pressure Cutout (HPCO) Control
- Low Pressure Cutout (LPCO) Control
- Compressor Time Delay
- Fan Cycle Control
- Harvest Assist Air Pump
- Compressor Electrical Diagnostics
- Diagnosing Start Components
- Refrigeration Components
- Recovery/Evacuation/Charging Procedures QuietQube® Models
- System Contamination Clean-Up
- Total System Refrigerant Charge QuietQube® CVD Models
- Control Board, Display And Touchscreen
- Charts
- Diagrams
156 Part Number: 000015431 Rev 02 6/20
COMPRESSOR TIME DELAY
FUNCTION
Supplies or interrupts power to the compressor contactor
coil. The time delay starts whenever line voltage is
removed/reapplied; The contact closes when the delay
period ends.
Specifications
Contact Delay Period
SPST
Normally open
300 seconds (5 minutes)
+35%/-15%
CHECK PROCEDURE
1. Verify line voltage is supplied to the condensing unit.
2. Disconnect/reconnect power to the condensing unit
and test for line voltage at terminals 2 & 3.
Line Voltage at Terminals 2 & 3?
Yes Proceed To Next Step
No Verify HPCO & LCPO are closed
3. Wait 5 minutes for the delay period to expire then
test for line voltage at terminals 1 & 3.
Line Voltage at Terminals 1 & 3?
Yes Time Delay is operating correctly
No
Verify the delay time has expired
Verify the HPCO & LPCO are not momentarily
opening/closing during the delay period
Replace the time delay