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ASHRAE 17 98 RA03:1998 Edition

ASHRAE 17 98 RA03:1998 Edition

$10.83

ASHRAE Standard 17 Method of Testing Capacity of Thermostatic Refrigerant Expansion Valves (ANSI approved)

Published By Publication Date Number of Pages
ASHRAE 1998 12
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PDF Catalog

PDF Pages PDF Title
3 CONTENTS
CONTENTS
4 FOREWORD
FOREWORD
1. PURPOSE
1. PURPOSE
2. SCOPE
2. SCOPE
3. DEFINITIONS
3. DEFINITIONS
5 4. CONDITIONS FOR TESTING CAPACITY
4. CONDITIONS FOR TESTING CAPACITY
5. DATA REQUIRED FOR REPORTING CAPACITY
5. DATA REQUIRED FOR REPORTING CAPACITY
6. TEST INSTRUMENTS
6. TEST INSTRUMENTS
Figure 1 Air fixture for remote temperature-sensing element valves.
Figure 1 Air fixture for remote temperature-sensing element valves.
Figure 2 Air fixture for integral temperature-sensing element valves.
Figure 2 Air fixture for integral temperature-sensing element valves.
7. TEST APPARATUS
7. TEST APPARATUS
6 Figure 3 Refrigerant fixture for remote temperature-sensing element valves.
Figure 3 Refrigerant fixture for remote temperature-sensing element valves.
8. TEST PROCEDURE
8. TEST PROCEDURE
9. CAPACITY CALCULATION
9. CAPACITY CALCULATION
7 Figure 4 Refrigerant fixture for integral temperature-sensing element valves.
Figure 4 Refrigerant fixture for integral temperature-sensing element valves.
10. REFERENCES
10. REFERENCES
8 I. Very Small Flow Exception
I. Very Small Flow Exception
Figure 5 Valve opening characteristics.
Figure 5 Valve opening characteristics.
II. Valve Opening vs. Temperature-Sensing Element Temperature (Sometimes Referred to as Valve Te…
II. Valve Opening vs. Temperature-Sensing Element Temperature (Sometimes Referred to as Valve Te…
Figure 6 Air test: test valve opening vs. temperature- sensing element temperature.
Figure 6 Air test: test valve opening vs. temperature- sensing element temperature.
III. Refrigerant Flow vs. Valve Opening
III. Refrigerant Flow vs. Valve Opening
Figure 7 Refrigerant test: refrigerant flow vs. test valve opening.
Figure 7 Refrigerant test: refrigerant flow vs. test valve opening.
IV. Determination of Superheat Change at Other Capacities
IV. Determination of Superheat Change at Other Capacities
9 Figure 8 Refrigerant flow vs. temperature-sensing element temperature.
Figure 8 Refrigerant flow vs. temperature-sensing element temperature.
Figure 9 Example.
Figure 9 Example.
V. Example
V. Example

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