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ThermoFlex 900
Thermo ThermoFlex 900 User Manual
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R 134a Refrigerant Charging Data
900 Air Cooled
US measure
metric measure
Amount
19 (±0.3) ounces
537
(±9) grams
900 Water Cooled
US measure
metric measure
Amount
16 (±0.3) ounces
283
(±9) grams
1400 Air Cooled
US measure
metric measure
Amount
19 (±0.3) ounces
537
(±9) grams
1400 Water Cooled
US measure
metric measure
Amount
16 (±0.3) ounces
454
(±9) grams
Section X Refrigeration
79
81
Table of Contents
Table of Contents
3
Section I Safety
5
Warnings
5
Section II Theory of Operation
7
Abbreviations
7
RA Process Data Dictionary
7
Flow Diagram, Air-Cooled
8
Flow Diagram, Water-Cooled
9
Components
10
Section III General Information
15
Specifications
15
Performance Curves
16
Section IV Installation
17
Site Requirements
17
Electrical Requirements
18
Plumbing Requirements
19
Fluids
21
Section V Operation
22
Basic Controller
22
Prestart
23
Start up
23
Controller Loops
25
Setpoint Loop
26
Setup Loop
27
Diagnostic Loop
31
Adjusting the Controller PID Values
32
Shut down
33
Section VI Troubleshooting
34
Operational Error Codes
34
Checklist
43
Flowcharts
45
Section VII Service Function
49
Entering
49
Diagnostic Loop
50
Calibration Loop
51
Engineering Loop
52
Tune Loop
53
Configuration Loop
54
Master Reset
55
End Item Number Decoding
56
Section VIII Advanced Service
59
Removing the Side Panels
59
Draining
59
Control Board Replacement
60
Pump
64
Top Assembly
66
Pressure Transducer
69
Temperature Sensor
70
Testing RTD Temperature Sensor
71
Temperature Sensor Replacement
73
RTD1 Calibration
74
Flow Transducer Calibration
76
Section IX Pressure Transducer Check
78
PD Pump
78
Suction Pressure
79
Section X Refrigeration R134A Refrigeration Charging Data
80
Section XI C1 - C3 Service Test
81
Heat Load Capacity
81
Section XII Printed Circuit Board Assembly Calibration
83
Overview
83
Procedure
83
Section XIII Firmware Download
89
Procedure
89
Section XIV Diagrams Wiring Diagrams
90
Country Specific Receptacle Ratings Requirements
90
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Thermo ThermoFlex 900 Specifications
General
Temperature Stability
±0.1°C
Refrigerant
R134a
Power Requirements
230V, 50/60Hz
Display
Digital
Power Supply
230V, 50/60Hz
Cooling Capacity
900 W
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