ThermoFlex-Manual - 第55页
Section 3 ThermoFlex 3-17 Thermo Scientific ThermoFlex24000 Example: Follow the lines. Start with a known, e.g., facility water temperature. A - go across to temperature curve B - go down or up to determine the minimum re…
Section 3
3-16 ThermoFlex
Thermo Scientific
Facility Water Maximum Inlet Pressure must not exceed 150 PSIG.
Facility Water Maximum Pressure Differential must not exceed
50 PSID.
(Pressure Differential = Inlet Pressure - Outlet Pressure)
Note Before using facility water that is above 35°C contact Thermo Fisher
Scientic.
The facility water must meet the following conditions for the chiller to
maintain its full rated capacity.
Facility Water
Requirements
(water-cooled
chillers)
Facility Pressure Drop PSID
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Facility Flow - GPM
Facility Temperature °C
45
40
35
30
25
20
15
10
5
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
°C
PSID
ThermoFlex1400
Example:
Follow the lines.
Start with a known, e.g., facility water
temperature.
A - go across to temperature curve
B - drop down to determine the minimum
required facility ow.
C - Where B crosses the PSID curve, go
across to determine the minimum required
PSID.
A
B
C
Facility Temperature °C
45
40
35
30
25
20
15
10
5
2 4 6 8 10
Facility Flow - GPM
Facility Pressure Drop PSID
45
40
35
30
25
20
15
10
5
°C
PSID
ThermoFlex3500/5000
A
B
C
Example: See above.
Facility Pressure Drop PSID
2 4 6 8
Facility Flow - GPM
Facility Temperature °C
45
40
35
30
25
20
15
10
5
30
25
20
15
10
5
°C
PSID
ThermoFlex2500
A
B
C
Example: See above.
CAUTION
Section 3
ThermoFlex 3-17
Thermo Scientific
ThermoFlex24000
Example:
Follow the lines.
Start with a known, e.g., facility water temperature.
A - go across to temperature curve
B - go down or up to determine the minimum
required facility ow.
C - Where B crosses the PSID curve, go across to
determine the minimum required PSID.
Facility Temperature °C
40
35
30
25
20
15
10
5
5 10 15 20 25 30
Facility Flow - GPM
Facility Pressure Drop PSID
Facility Pressure Drop PSID
30
25
20
15
10
5
PSID
A
B
C
°C
ThermoFlex15000/20000
Example: See below.
5 10 15 20
Facility Flow - GPM
°C
PSID
ThermoFlex7500/10000
Example: See below.
A
B
C
Facility Temperature °C Facility Temperature °C
40
35
30
25
20
15
10
5
40
35
30
25
20
15
10
5
5 10 15 20 25 30
Facility Flow - GPM
Facility Pressure Drop PSID
30
25
20
15
10
5
30
25
20
15
10
5
PSID
A
B
C
°C
Section 3
3-18 ThermoFlex
Thermo Scientific
Initial Filling
Ensure the reservoir drain plug on the back of the chiller is in place, or the
Before using any uid refer to the manufacturer’s MSDS for handling
precautions.
Slowly
comply may result in internal spillage.
Note
O FLO) causing the chiller to shut down.
Since the reservoir capacity may be small compared to your application and
keep the system topped off when external circulation is started.
Figure 3-6 Reservoir Cap
Before replacing the reservoir cap ensure the reservoir sight tube ball
stopper is securely in place, see next page.
Replace the reservoir cap by screwing it clockwise. Cap should be hand tight.
Reservoir Sight Tube & Ball
MAX
LEVEL
MIN
LEVEL
Figure 3-7 Reservoir Sight Tube & Ball
WARNING
Locate and remove the reservoir cap by
unscrewing it counterclockwise.
To prevent the introduction of particulates
Section 6.
CAUTION