Danfoss CVMD Installation guide
Installation Guide
Pilot valve
CVMD
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Code number: 027B1038 |
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1. |
Protection cap |
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2. |
O-ring |
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3. |
Spindle |
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4. |
Gasket |
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5. |
Cover |
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6. |
Spring |
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7. |
Screw |
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8. |
Diaphragm |
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9. |
Gasket |
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17. |
Flanges |
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Fig. 1 |
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Fig. 2 |
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CVMD |
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0.45 bar 6.5 psi |
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Range |
1 turn 360° |
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bar |
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–0.66 →7 bar |
0.45 bar |
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4 →22 bar |
1.4 bar |
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4 →28 bar |
2 bar |
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Range |
1 turn 360° |
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psi |
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19.5 in.Hg →29 psi |
6.5 psi |
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58 psi →319 psi |
20 psi |
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58 psi →406 psi |
29 psi |
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Fig. 3
ENGLISH
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Technical data
Refrigerants
R 717, R 22, R 134a, R 404A, R 407C etc.
Range
0 -7 bar (0-101 psig)
Max. working pressure
PB = 28 bar (406 psig)
Temperature range
−50°C to 120°C (–58°F to 248°F)
See fig. 2
The figure shows the low pressure side of an R 717 refrigeration plant with flooded evaporator with pump circulation.
In this application, the constant pressure valve, type CVMD, is mounted as a pressure regulator in the bypass line between evaporator and downstream wet suction line after the solenoid valve, type PMLX.
Pos. A on the drawing is the pilot line from the high pressure side to PMLX.
Pos. B is the liquid/gas return line.
Pos. C is the liquid line to the evaporator. Pos. D is the hot gas line for hot gas defrosting of the evaporator.
Adjustment
See fig. 3
www.danfoss.com/IR
© Danfoss A/S (AC-MCI/MWA), 2013-02 |
DKRCI.PI.HN0.K1.02 / 520H7369 |
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