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Page 13-C 

7.  Maintenance Instructions 

7.1. 

In the day-to-day operation of this equipment, you will become aware of certain levels of noise, vibration, 

temperature and pressure. If you encounter any significant changes in these levels, investigate them 

immediately. 

7.2. 

A preventive maintenance program should be developed for this equipment. To assist in your 

development of this program, Cincinnati Sub-Zero has prepared a list of preventive maintenance 

routines. While this list is not all inclusive, it will serve as a good base on which to build your own custom 

preventive maintenance program. The establishment of such a program will add significantly to the life of 

the equipment and will reduce the unscheduled down time on the equipment. 

7.3. 

Print the following table to track preventive maintenance activities. Initial and date when each activity has 

been completed.  

 

Inspect 

Daily 

Weekly 

Montly 

Yearly 

Initial 

Date 

1.  interior & exterior cleaning 

 

 

 

 

 

2.  FLUID LEVELS (IF APPLICABLE) 

 

 

 

 

 

3.  GAS MONITOR (OPTIONAL EQUIPMENT) 

WATER FILTER 

 

 

 

 

 

4.  R-404A CHARGE (IF APPLICABLE) 

 

 

 

 

 

5.  R-410A CHARGE (IF APPLICABLE) 

 

 

 

 

 

6.  R-508B STAND-BY PRESSURE (IF 

APPLICABLE)  

 

 

 

 

 

7.  R-23 STAND-BY PRESSURE (IF APPLICABLE) 

 

 

 

 

 

8.  COMPRESSOR OIL LEVEL 

 

 

 

 

 

9.  HUMIDITY DEMINERALIZER FILTER 

(OPTIONAL EQUIPMENT) 

 

 

 

 

 

10.  AIR COOLED CONDENSOR (IF APPLICABLE) 

 

 

 

 

 

11.  ELECTRICAL PANEL 

 

 

 

 

 

12.  OPERATING CURRENTS 

 

 

 

 

 

13.  CHECK GFCI RECEPTACLE (IF APPLICABLE) 

 

 

 

 

 

14.  TUBING ABRASION 

 

 

 

 

 

15.  OIL PRESSURE (SEMI-HERMETIC 

COMPRESSORS ONLY) 

 

 

 

 

 

16.  HUMIDITY SENSOR (IF APPLICABLE) 

 

 

 

 

 

17.  PRODUCT HIGH/LOW LIMIT 

 

 

 

 

 

18.  WATER STRAINER  

 

 

 

 

 

19.  WATER COOLED CONDENSOR (IF 

APPLICABLE) 

 

 

 

 

 

20.  CHAMBER CONTROLLER CALIBRATION/ 

VERIFICATION 

 

 

 

 

 

21.  DIAPHRAGM, AIR COMPRESSOR (ATOMIZER, 

OPTIONAL EQUIPMENT) 

 

 

 

 

 

22. LUBRICATE MOTORS 

 

 

 

 

 

 

For more detailed instructions, please see the user manual 

 

 

 

Summary of Contents for Z-Plus

Page 1: ... and Unit startup checklist IF0230 as an overview for your chamber installation and operation For all details regarding your chamber please read the user manual in its entirety This reference guide does NOT replace the user manual Please refer to the Installation Operation Maintenance and Troubleshooting Q A sections of the manual for commonly asked questions ...

Page 2: ...kid 1 3 The unit is to be lifted from the side as shown in the illustration below 1 4 Forks should extend past the other side of the chamber to prevent damage 1 5 The rear of the chamber is heavier than the front use caution when lifting 1 6 The chamber should be 2 3 off the floor when transporting 1 7 The unit is also equipped with casters and can be moved manually once removed from the skid 2 Ge...

Page 3: ...tion must be smooth and level with a maximum slope in any direction of 1 8 3 mm x 10 3 m 3 2 For proper ventilation a minimum clearance of 12 31 cm must be maintained around the sides of the chamber and 30 70 cm of clearance at the back of the chamber It is recommended to maintain a 36 91 cm clearance around the chamber for ease of service access ...

Page 4: ...he proper connection size and flow rates below LOW TEMP HERMETIC SEMI HERMETIC COMPRESSORS LOW TEMP SCROLL COMPRESSORS WATER TEMPERATURE 85 F 75 F 65 F 55 F WATER TEMPERATURE 85 F 75 F 65 F 55 F 29 C 24 C 18 C 13 C 29 C 24 C 18 C 13 C HP Pipe Size GPM GPM GPM GPM HP Pipe Size GPM GPM GPM GPM 1 3 8 3 3 2 1 4 1 1 2 1 2 4 8 2 8 2 1 6 1 5 1 2 4 8 2 8 2 1 6 3 1 2 6 4 3 8 2 7 2 2 2 1 2 8 9 5 2 3 8 3 3 5...

Page 5: ...a maximum supply pressure of 60 PSI 515 kPa 5 2 3 2 Closed Loop Systems require a minimum pressure differential supply pressure minus return pressure 40 PSI 275 kPa with a maximum supply pressure of 60 PSI 515 kPa 5 2 3 3 Verify that the incoming water flow rate is adequate based on temperature 5 3 Once power is applied the unit it must sit for 4 hours prior to refrigeration operation to allow the...

Page 6: ...alarm occurs Pressing the alarm icon will take the user directly to the alarm screen in order to view and or reset the active alarm condition The light icon allows the user to turn the chamber light s on and off The left and right navigation arrows will appear on screens that provide additional information that the user can scroll to such as the main view screen real time trends or program entry s...

Page 7: ...oak selections are used to turn on the guaranteed soak option for one or more of the control loops To enable guaranteed soak for a loop first press the G Soak button above the event list view on the Program Entry screen This will display the list of soak selections for each loop of the chamber 6 4 3 Press the on off button for a loop to toggle the guaranteed soak selection on and off as desired Wh...

Page 8: ...ge state before continuing the step 6 5 3 To enable a wait condition in a step first press the Wait button above the event list view on the Program Entry screen This will display the list of available wait selections Select the input to wait for and if a process variable is selected Loop or monitor input enter the set point for the wait This is the set point that the process variable must reach in...

Page 9: ... C in 5 C min 5 Soak at 40 C for one hour Repeat cycle for a total of five cycles 6 Ramp back to 24 C 7 Soak at 24 C for thirty minutes 8 Enter the last step without turning on events to end the profile 6 6 2 Profile Entry Screens 6 6 2 1 To enter a new profile select the Program Operation button then select Edit 6 6 2 2 Step 1 Specify starting point Temp changed to 24 C Chamber switch turned to O...

Page 10: ...1 Hr 6 6 2 5 Step 4 Ramp to 40 C at 5 C min Temp set to 85 C Ramp Rate set to 5 C min Time is automatically calculated by the ramp rate and temp set point Time set to 1 Hr Temp set to 40 C Ramp Rate set to 5 C min Time is automatically calculated by the ramp rate and temp set point ...

Page 11: ...t 24 C for 30 min Jump set to 2 to repeat the cycle until cycle count is reached Time set to 1 Hr Cycle count set to 1 minus the desired cycle count 5 1 4 Temp set to 24 C CAUTION It is recommended to return chamber to ambient temp 24 C after testing for at least 30 min to reduce any risk when opening chamber door Time set to 30 min ...

Page 12: ... and select save Enter the profile name To run the profile select the Run icon 6 6 4 Plot Profile 6 6 4 1 Select the menu monitor icon swipe to screen 2 home program and select Plot Profile Below is the screen of the plot profile that should be seen for the completed profile Chamber switch turned to OFF position ...

Page 13: ...entive maintenance activities Initial and date when each activity has been completed Inspect Daily Weekly Montly Yearly Initial Date 1 interior exterior cleaning X 2 FLUID LEVELS IF APPLICABLE X 3 GAS MONITOR OPTIONAL EQUIPMENT WATER FILTER X 4 R 404A CHARGE IF APPLICABLE X 5 R 410A CHARGE IF APPLICABLE X 6 R 508B STAND BY PRESSURE IF APPLICABLE X 7 R 23 STAND BY PRESSURE IF APPLICABLE X 8 COMPRES...

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