Fitters notes |
Pressure regulators |
|
|
|
|
|
|
|
|
|
|
Contents |
|
|
|
Page |
|
|
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. |
. |
37 |
|
KVP evaporating pressure regulator . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. . |
|
. 37 |
|
KVR condensing pressure regulator . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. . |
|
. 38 |
|
KVL crankcase pressure regulator . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. . |
|
. 38 |
|
KVC capacity regulator . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . 39 |
|||
|
KVD receiver pressure regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 |
||||
|
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. |
. |
40 |
|
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 |
||||
|
Soldering/brazing . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. |
. |
40 |
|
Pressure testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. |
. |
41 |
|
Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 |
||||
|
Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . . . . |
. . . |
. |
. 42 |
|
KVP evaporating pressure regulators . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. |
. |
42 |
|
KVL crankcase pressure regulators . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. |
. |
42 |
|
KVR + NRD condensing pressure regulators . . . . . . . . . . . . |
. . . . . . . . . . . |
. . |
|
. 42 |
|
KVR + KVD condensing pressure regulators . . . . . . . . . . . . |
. . . . . . . . . . . |
. . |
|
. 43 |
|
Danfoss pressure regulators . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . |
. |
. |
43 |
<![if ! IE]> <![endif]>regulators |
<![if ! IE]> <![endif]>Pressure |
© Danfoss A/S (AC-DSL/MWA), 10 - 2006 |
DKRCC.PF.000.G1.02 / 520H1459 |
35 |
Notes
36 |
DKRCC.PF.000.G1.02 / 520H1459 |
© Danfoss A/S (AC-DSL/MWA), 10 - 2006 |
Fitters notes |
Pressure regulators |
|
|
Application |
Type KV pressure regulators will control the low |
|
|
and high pressure sides of the system under |
|
|
varying load conditions: |
|
|
KVP |
is used as an evaporating pressure |
|
|
regulator. |
|
KVR |
is used as a condensing pressure regulator. |
|
KVL |
is used as a crankcase pressure regulator. |
|
KVC |
is used as a capacity regulator. |
|
NRD |
is used as a differential pressure regulator |
|
|
and as a receiver pressure regulator. |
|
KVD |
is used as a receiver pressure regulator. |
|
CPCE is used as a capacity regulator. |
Ak0_0031 |
KVP evaporating |
The evaporating pressure regulator is installed in |
pressure regulator |
the suction line after the evaporator to regulate |
|
the evaporating pressure in refrigeration sys- |
|
tems with one or more evaporators and one |
|
compressor. |
|
In such refrigeration systems (operating on |
|
different evaporating pressures) KVP is installed |
|
after the evaporator with the highest evaporating |
|
pressure. |
|
Each evaporator is activated by a solenoid valve |
|
in the liquid line. The compressor is contolled by |
|
a pressure switch in a pump down function. |
|
The maximum pressure on the suction side |
|
corresponds to the lowest room temperature. |
|
In refrigeration systems with parallel coupled |
|
evaporators and common compressors, and |
|
where the same evaporating pressure is required, |
|
KVP must be installed in the common suction |
|
line. |
The KVP evaporating pressure regulator has a pressure gauge connection for use when setting the evaporating pressure. KVP maintains constant pressure in the evaporator.
KVP opens on rising inlet pressure (evaporating pressure).
Ak0_0025
Ak0_0019
<![if ! IE]> <![endif]>regulators |
<![if ! IE]> <![endif]>Pressure |
Ak0_0023
© Danfoss A/S (AC-DSL/MWA), 10 - 2006 |
DKRCC.PF.000.G1.02 / 520H1459 |
37 |