Copeland CV Serie Betriebsanleitung

Operating instructions
High Pressure Valves Series CV
General information:
CV are stepper motor driven valves for precise control of
refrigerant mass flow in CO systems as: (Fig. 1)
2
- High pressure gas valve (A,)
- Bypass valve (B),
- Heat reclaim valve (C),
- Expansion valves (D),
- Suction pressure regulating valve (E)
Safety instructions:
• Read operating instructions thoroughly. Failure to
comply can result in device failure, system damage or
personal injury.
• This product is intended for use by qualified personnel
having the appropriate knowledge and skills like trained
according to EN 13313
• Before opening any system make sure pressure in
system is brought to and remains at atmospheric
pressure.
• Do not release any refrigerant into the atmosphere!
• Do not exceed the specified maximum ratings for
pressure, temperature, voltage and current.
• Ensure that the system piping is grounded.
• Do not connect valve directly to supply voltage. Use a
suitable stepper motor driver.
• Do not operate the valve when system is under vacuum
except for closure of valve before refrigerant charging.
• Do not operate the valve when the compressor is not
running.
• Before installation or service disconnect all voltages
from system and device.
• Do not use any other fluid media without prior approval.
Use of fluids not listed could result in a change of hazard
category of product and consequently change of
conformity assessment requirement for product in
accordance with European Pressure
Directive 2014/68/EU.
• Ensure that design, installation and operation comply
with European and national standards/regulations.
Mounting location / position: (Fig. 1)
HR = Heat Reclaim, GC = Gas Cooler
High pressure gas valve (A), Bypass valve (B), heat reclaim
valve (C), Suction pressure valve (E):
- The motor needs to be pointed
downward.
- The valve must be protected against
contaminants by an upstream filter or
strainer with mesh size 100µm or
smaller, which should be replaced or
cleaned after first 24 hours of full system
operation.
Expansion valve (D):
-
The motor needs to
be pointed between
downward to
sideways.
-
Check for sufficient
refrigerant charge/
subcooling and
make sure no flash
gas is present at
the inlet of valve before attempting to check valve
operation.
Technical Data:
Type
Maximum allowable pressure PS / Factory Test Pressure PT
Max. operating pressure difference MOPD
Operating temperature
Nominal Supply Voltage U / Operating (moving) current peak
Holding current peak
Number of steps / Frequency
Stepping mode / Waveform
Winding resistance per phase /Insulating resistance
Compatibility
Dimensions
Marking
Copeland Europe GmbH
Pascalstrasse 65 I 52076 Aachen I Germany
-
For best result, locate the valve as close as possible to
the distributor or inlet of evaporator.
-
Install a sight glass as well as a filter drier before the valve.
-
Allow enough space when placing valve to mount plug as
shown in Fig. 6.
Installation:
• Direction of refrigerant flow must match with arrow on the
label.
WARNING:
• All valves are delivered at half open. Do not charge
system before closing of bypass valve (B) and
expansion valve (D). See operating instruction of used
driver/controller.
• The interior parts of valve must be protected against
moisture and water at any time. It is not permitted the use
of water, steam or any other solvent to clean the inside
of valve.
Installation - brazing ODF connections: copper piping:
(Fig. 3)
• Perform and consider the brazing joint as per EN 14324.
• Before and after brazing clean tubing and brazing joints.
• Minimize vibrations in the piping lines by appropriate
solutions.
• Do not exceed
the maximum
surface
temperature of
120 °C!
• Use flux and
silver rod
having
minimum
30 % silver.
Equipment
Fig. 3
NOTE: The valve connections are made of stainless steel
1.4305 contains 0.15...0.35 % sulphur. According to
standards, it is not recommended to apply welding process
for stainless steel 1.4305 with high content of sulphur.
(difficult to weld).
Pressure test:
After completion of installation, a pressure test must be
carried out as follows:
- according to EN 378 for systems which must comply with
European pressure equipment directive 2014/68/EU.
- to maximum working pressure of system for other
applications.
Tightness test:
Fig. 2a
Conduct a tightness test according to EN 378-2 with
appropriate equipment and method to identify leakages
from joints and products. The allowable leakage rate must
be according system manufacturer's specification.
WARNING:
• Failure to pressure test or tightness test as
described could result in loss of refrigerant, damage
to property and/or personal injury.
• The tests must be conducted by skilled personnel
with due respect regarding the danger related to
Fig. 2b
pressure.
CV4-HPV
70 bar
24 VDC / 625 mA
100 mA
750 Steps / 500 Hz
14 Ω ± 10 % / > 20 MΩ
Fluid group II:
Date: 29.10.2024
OI_CV4-6_5_A1_EN_DE_FR_ES_IT_Rev05_866918.docx
a
of
CV4.5 / 5.5 / 5.8 HPQ
90 bar (70 bar flash tank by-pass)
Inlet: –50 °C... +100 °C / Outlet: -100 °C...+100 °C
24 VDC / 800 mA
300 mA
750 Steps / 500 Hz
10 Ω ± 10 % / > 20 MΩ
R744
Out of Scope of PED
(no CE Marking required)
P/N 866918/Rev05
Electrical connection:
WARNING:
• Entire electrical connections have to comply with local
regulations.
• Improper wiring will result wrong direction of rotation or
no rotation of stepper motor.
• Ensure that the cables are mounted without tension;
always leave the cable a bit loose.
• Ensure that cables are not mounted near sharp edges.
• Do not bend or mechanically stress the cable outlet,
maintain a clearance of 20 mm to neighbouring parts.
• See operating instruction of used driver/controller.
• See the wiring diagram of applied driver/controller.
• Installation plug-valve
• Prewired plug and cable assembly is ready for
connection to the valve.
• There
is no specific
requirement for positioning
of plug on pins.
1. Push the plug on pins on
top of the valve.
2. Rotate the nut one turn in
clockwise direction
push the plug.
3. Repeat this procedure until the plug is tightened.
• Ensure, that the plug (with cable) is correctly placed
and tighten.
Wiring / Mounting to driver/ controller:
• See the wiring diagram of applied driver/controller.
Operation:
See operating instructions of applied electronic driver/
controller.
Service / Maintenance:
• Disconnect electrical power before service.
• Disconnection of electrical plug from device only when
the power is switched off.
• According
to EN 378-4
maintenance, tightness tests shall be carried out at the
relevant part of the refrigerating system. This shall apply
where appropriate following any repair.
• For motor check, remove
cable plug from valve.
Use an ohmmeter with
suitable range. Measure
windings resistance per
phase at opposite placed
pins acc. Fig. 5 and data
as in the table below.
• CV has capability of positive shut-off when it is driven to
fully close position (as long as inlet pressure is 0.5 bar
above outlet pressure).
• CV can replace defective CX4-6, under consideration by
replacing driver EXD-U01 to EXD-U02. For third party
driver /controller, electrical operating parameter settings
must be adapted. (see Technical data table).
CV5 / 6-HPV
130 bar / 186 bar
70 bar
Full step
See Fig. 6
(No. MP604)
EN
and
Fig. 4
during each periodic
Fig. 5