SECOP P Series, T Series, F Series, X Series, D Series Mounting Instructions

WITH MORE THAN 60 YEARS OF
EXPERIENCE IN COMPRESSOR
TECHNOLOGY AND HIGHLY
DEDICATED EMPLOYEES, OUR
FOCUS IS ON DEVELOPING AND

APPLYING ADVANCED COMPRESSOR
TECHNOLOGIES TO ACHIEVE
STANDARD SETTING PERFORMANCE
FOR LEADING PRODUCTS AND
BUSINESSES AROUND THE WORLD.

MOUNTING INSTRUCTIONS FOR
HERMETIC AC COMPRESSORS

GUIDELINE FOR P / T / X / D / N / F / S / G-SERIES & DELTA / KAPPA

www.secop.com SETTING THE STANDARD

TABLE
OF CONTENTS

1. Compressors ............................................................................................................3

1.1 Type label .............................................................................................................3

1.2 Denomination P / T / D / N / F / S / G-Series .....................................................4

1.3 Denomination variable speed .............................................................................6

1.3.1 Type label XV ........................................................................................................6

1.4 Denomination KAPPA/DELTA .............................................................................7

1.4.1 Type label KAPPA .................................................................................................7

1.4.2 Type label DELTA .................................................................................................7

1.5 Low and high starting torque ..............................................................................8

1.6 Motor protector ....................................................................................................8

1.7 Rubber grommets ...............................................................................................8

1.8 Minimum ambient temperature ..........................................................................8

1.9 SC Twin compressors ..........................................................................................8

2. Finding faults ............................................................................................................9

2.1 Winding protector cut out ...................................................................................9

2.2 PTC and protector interaction .............................................................................9

2.3 Check of winding protector and resistance ........................................................9

3. Opening the refrigerating system ...........................................................................10

3.1 Flammable refrigerants ....................................................................................10

4. Mounting .................................................................................................................11

4.1 Connectors ........................................................................................................ 11

4.2 Expanding connectors .......................................................................................12

4.3 Bending copper connectors ..............................................................................13

4.3.1 Spring benders ..................................................................................................13

4.3.2 Lever-type benders............................................................................................13

4.3.3 Tailor-made bending tools ................................................................................13

4.4 Tube adaptors ....................................................................................................14

4.5 Filler metal ........................................................................................................14

4.6 Brazing ..............................................................................................................14

4.7 Brazing on suction connectors(direct suction intake)......................................15

4.7.1 Temperature at socket TLX / NLE / NLU / NLV / DLE / DLX / DLV / XV ...........15

4.7.2 Temperature at socket SCE ...............................................................................15

4.7.3 Brazing on discharge connector. Temperature at socket DELTA ....................15

4.7.4 Heat protection ..................................................................................................15

4.8 Brazing methods and requirements ................................................................. 16

4.8.1 Filler Metal and Flux..........................................................................................16

4.8.2 Corrosion ...........................................................................................................16

4.8.3 Flame and heating ............................................................................................. 17

4.9 LOKRING® connections ....................................................................................17

4.10 Driers ..............................................................................................................18

4.11 Driers and refrigerants .....................................................................................19

4.12 Capillary tube in drier ........................................................................................ 19

5. Electrical equipment ..............................................................................................20

5.1 LST (RSIR) starting device ................................................................................. 20

5.2 LST (RSCR) starting device ...............................................................................20

5.3 PTC protection screen .......................................................................................21

5.4 HST (CSIR) starting equipment ........................................................................21

5.5 HST (CSR) starting equipment ..........................................................................21

5.6 Equipment for SC Twin compressors ............................................................... 22

5.7 Connections .......................................................................................................22

5.8 Further reading ..................................................................................................22

6.- Single Pack Instructions .........................................................................................23

29. P / T / X / D / N / F / S / G-Series & DELTA / KAPPA. ..............................................53

30. Evacuation ..............................................................................................................54

30.1 Vacuum pumps ..................................................................................................54

31. Charging of refrigerant ..........................................................................................55

31.1 Maximum refrigerant charge ............................................................................ 55

32. Testing ....................................................................................................................56

32.1 Testing of the appliance.....................................................................................56

33. Mounting accessories .............................................................................................57

2

1.
COMPRESSORS

If a compressor needs to be installed in new appliances normally there is enough time available to choose
the right compressor type from data sheets and perform sufficient testing. On the contrary, when a faulty
compressor needs to be replaced it can be impossible to get the same compressor type as the original in
many cases. That is why it is necessary to compare relevant compressor catalogue data.

A compressor can provide a long durability if service work is done in the right way and attention is paid
to keeping parts clean and dry. The service technician must observe the following when choosing a com­pressor: type of refrigerant, voltage and frequency, application range, compressor displacement/capacity,
starting conditions, and cooling conditions. If possible use the same refrigerant type as in the faulty system.

The Secop hermetic refrigeration compressor programme consists of the types:
P / T / X / D / N / F / S / G-Series and DELTA / KAPPA

1.1
Type label

P T DELTA X D KAPPA N F S G

All compressors for 220-240 V have a yellow label with the type designation. Compressors for 115 V have a
green label with the type designation.
Direct current compressors and variable speed compressors have a gray label.
The label for “R404A R507” or “R404A R407C R507” has a lilac stripe. The label for “R134a” has a blue
stripe. The labels for “R290” and “R600a” both have a red stripe.
The labels for the DELTA, KAPPA, and XV compressors do not follow all rules.

The country of origin indicated on the com­pressor paper label and on the compressor
varies depending on the place of manufac­ture.
If the type label has been destroyed, the com­pressor type and the code number can be found
on the engraving on the side of the compressor.
For information please refer to Product Bulletin
"Date Code Format & Country of Origin".

LST/HST mentioned both means that the start­ing characteristics are depending on the electri­cal equipment.

Barcode format

A Secop compressor type label contains two barcode lines. The first line is the full code number of the com­pressor and the second line is the compressor serial number. These barcodes contain 8 characters each
and are printed in code 128.

Serial number

The compressor serial number will also be written in normal letters below the barcodes
The serial number contains 8 digits, written in characters 0–9 and A–Z, excluding I and O.

3

1.2
Denomination

Key to AC-Compressor Type Designation (P / T / D / N / F / S / G-Series)

1 2 3

Compressor

design

Protector location Optimization level

Internal External

PTC
LST

Relay

HST

PTC Relay Low < Standard > High

P

T

L

D

T

F

N

L

Blank

F R

S C C E

a)

E

intake

Semi-direct

S

b)

E

Y

a)/b)

a)

X

a)

U

Semi-direct or direct intake

Direct

intake

G S

intake

Semi-direct

= Semi-direct intake

S

= Energy-optimized

E

= High energy-optimized +

Y

= High energy-optimized ++

L = Low

Blank =

X

Standard

= High energy-optimized +++

U

1 The first letter of the denomination (P, T, D, N, F, S or G) indicates compressor series

2 The second letter indicates motor protection placement.

3 E, Y, X, and U denote different energy optimization steps. S means semi-direct suction.

On all these mentioned types, the indicated suction connector has to be used. Using the wrong
connector as a suction connector will lead to reduced capacity and efficiency.

4 A number indicates the displacement in cm

3

, but for PL compressors, the number indicates the

nominal capacity.

5 The letter after the displacement indicates which refrigerant must be used as well as the field of
application for the compressor.

4

4 5 6 7

Compressor size Application range Refrigerant Code letter

Capacity at

rating point

Displacement

characteristics

Generation

for starting

20
30
35
50

2.5, 3, 4

4.5, 4.8, 5

5.7, 6, 6.5
7, 7.5, 8

8.7, 9, 10

4, 4.8

5.7, 6.5

7.5, 8.7

9.4, 10

5.2, 5.5, 5.7

6, 6.1, 7, 7.3

8.0, 8.4, 8.8, 9
10, 11, 12.6
13, 13.3, 15

6

7.5

8.5
10
11

10
12
15
18
21

18
21
26
34

C = LBP

CL = LBP

CM = LBP

CN = LBP/MBP

CNL = LBP

D = HBP

DL = HBP

DN = HBP

F = LBP/(MBP)

FT = LBP tropical

G = LBP/MBP/HBP

GH = Heat pump

GHH = Heat pump optimized

K = LBP/(MBP)

KT = LBP/(MBP) tropical

MF = MBP

MK = MBP

ML = MBP

MN = MBP

S = LBP/HBP (service)

ST = LBP tropical (service)

R22

R404A/R507

R22

R290

R290

R22

R404A/R507
R407C

R290

R134a

R134a

R134a

R134a

R134a

R600a

R600a

R134a

R600a

R404A/R507

R290

R426A
R401A/R401B
R409A/R409B

R426A
R401A/R401B
R409A/R409B

Blank >

universal

(principal rule)

K = LST

characteristics

(capillary tube)

X = HST

characteristics

(expansion valve)

Blank >

first

generation

.1 >

updated

first

generation

.2 >

second

generation

.3 >

third

generation

.4 >

fourth

generation

= Run capacitor compulsory

a)

= Run capacitor optional

b)

5 LBP (Low Back Pressure) indicates the range of low evaporating temperatures, typically -10 °C / +14 °F down to -35 °C / -31 °F

or even -45 °C / -49 °F, for use in freezers and refrigerators with freezer compartments. MBP (Medium Back Pressure) indicates
the range of medium evaporating temperatures, typically -20 °C / -4 °F up to 0 °C / +32 °F , such as in cold cabinets, milk coolers,
ice machines, and water coolers. HBP (High Back Pressure) indicates high evaporating temperatures, typically -5 °C / +23 °F up to
+15 °C / +59 °F, such as in dehumidifiers and some liquid coolers.
T as an extra character indicates a compressor intended for tropical application. This means high ambient temperatures and
capable of working with more unstable power supply.

6 The next letter in the compressor denomination provides information on the starting torque. If, as principal rule, the compressor is
intended for LST (Low Starting Torque) and HST (High Starting Torque), the place is left empty.
The starting characteristics depend on the electrical equipment chosen. K indicates LST (capillary tube and pressure equalization
during idle periods) and X indicates HST (expansion valve or no pressure equalization).

7 The final letter (separated by a dot) mentions the generation of the compressor.

5

1.3
Denomination
variable speed

Key to AC-Compressor Type Designation (Variable Speed)

1 2 3 4 5 6

Compressor

design

Optimization

level

Low < Standard > High Displacement

Compressor

size

Application range Refrigerant Code letter

for starting

characteristics

Generation

XV L

DLV

NLV

SLV

Blank

5.0

7.2

8.0

4.0

5.7

12.6

12
15

F = LBP/(MBP)

K = LBP/(MBP)

EKT = LBP/(MBP)
extreme tropical

CL = LBP

ML = MBP

CN = LBP/MBP

CNL = LBP

MN = MBP

R134a

R600a

R600a

R404A/R507

R404A/R507

R290

R290

R290

X = LST & HST

characteristics
(capillary tube &
expansion valve)

Blank >

universal

(principal rule)

K = LST
characteristics
(capillary tube)

X = HST
characteristics

(expansion valve)

Blank >

first

generation

.1 >

updated

first

generation

.2 >

second

generation

1.3.1
Type label XV

6

1.4

Electrical characteristics

Compressor model

Background: white

Symbol and text: black

Approval marks

Serial number

Electrical characteristics

Compressor model
Background: white

Background: yellow
Pantone 137
Symbol and text: black

Bar code

Production date

Denomination
KAPPA / DELTA

KAPPA

DELTA

Key to AC-Compressor Type Designation (KAPPA/DELTA)

1 2 3 4 5 6 group

H X K 12 A T

1 2 3 4 5 6 group

H X D 55 A A

Group#6: Nominal Voltage Range

"A" for 220-240 V~ 50 Hz
"E" for 115-127 V~ 60 Hz
"G" for 220-240 V~ 50 Hz and
208-230 V~ 60 Hz
"T" for 200-240 V~ 50 Hz

Group#5: Application, starting characteristics
"A" for LBP, LST
"N" for LBP/(MBP), LST
"M" for LBP/MBP, LST

Group#4: Displacement in cm³
(values bigger than 20 have to be divided by 10)

Group#3: Platform
"K" for KAPPA, "D" for DELTA

example

example

1.4.1
Type label KAPPA

1.4.2
Type label DELTA

Group#1: Refrigerant

"H" for R600a
"G" for R134a

Variant code

Suction tube indication

Group#2: Performance level "M, T, K, X, Z"
(Medium Efficiency > Superior Efficiency)

1005

HKK12AA

R600a

MADE IN AUSTRIA

220-240 V ~ 50 Hz

SUCTION

B

9 052 1234567 0

TP

Secop logo

Suction tube indication
Check digit
Serial number

Approval marks

Manufacturer &
version code

Production date

Manufacturer &
version code

Variant code

220-240 V ~ 50 Hz

R600a

HXD55AA

F

S

0 001 00001234 0 1005

Secop logo

Approval marks

MADE IN AUSTRIA

TP

Background: yellow
Pantone 137

Check digit

Bar code

7

1.5
Low and high starting
torque

Description of the different electrical equipment shown can be found in the data sheets for the compressors.
See also chapter 4. Low starting torque (LST) compressors must only be used in refrigerating systems with
a capillary tube throttling device where pressure equalization is obtained between suction and discharge sides
during each idle period.
A PTC starting device (LST) requires that the idle time is at least 5 minutes, since this is the time necessary
for cooling the PTC.
The HST starting device, which gives the compressor a high starting torque, must always be used in refrig­eration systems with an expansion valve, and for capillary tube systems without full pressure equalization
before each start. High stating torque (HST) compressors are normally using a relay and starting capacitor
as starting device.
The starting capacitors are designed for short time cut-in.“1.7 % ED”, which is printed on the starting ca­pacitor. This means for instance max. 10 cut-ins per hour each with a duration of 6 seconds.

1.6
Motor protector and
winding temperature

1.7
Rubber grommets

Most of the Secop compressors are equipped with a built-in motor protector (winding protector) in the motor
windings. See also chapter 2.1. At peak load, the winding temperature must not exceed 135 °C / 275 °F and
nderstable conditions, the winding temperature must not exceed 125 °C / 257 °F.
Refer to our data sheets for specific information.

Stand the compressor on the base plate until it is fitted. This reduces the risk of oil coatings inside the con­nectors and associated brazing problems. Place the compressor on its side with the connectors pointing
upwards and then fit the rubber grommets and grommet sleeves on the base plate of the compressor. Do
not turn the compressor upside down. Mount the compressor on the baseplate of the appliance
Tightening torque for M6 bolt joint mountings should be 5 Nm ± 0,5 / 44 in-lb ± 4,4 (hand-tight).

1.8
Minimum ambient
temperature

1.9
SC Twin compressors

Allow the compressor to reach a temperature above 10 °C / 50 °F before starting for the first time to avoid
starting problems.

The twin version consists of two SC compressors mounted on a common base plate. The two compressors
are joined by an oil-equalizing tube and also have an intake manifold with screw connector for a service valve
or a braze connector (these parts are supplied as accessories, please refer to data sheets for more info).

Each twin compressor is supplied with two sets of electrical equipment and mounting accessories.

8

2.
FINDING FAULTS

If the compressor will not run, this may be due to a number of reasons. Before replacing the compressor,
make sure that it is defective. To easily determine the fault, please refer to Guideline
"Repair of Hermetic Refrigeration Systems".

2.1
Winding protector cut
out

2.2
PTC and protector
interaction

2.3
Check of winding
protector and
resistance

If the winding protector cuts out while the compressor is cold, it can take approx. 5 minutes for the protector
to reset. If the winding protector cuts out while the compressor is warm (compressor housing above 80 °C /
176 °F) the resetting time is increased. Up to approx. 45 minutes may pass before reset.

The PTC starting unit requires a cooling time of 5 minutes before it can restart the compressor with full
starting torque. Short time power supply cut offs, not long enough to allow the PTC to cool down, can result
in start failure for up to 1 hour. The PTC will not be able to provide full action during the first protector resets,
as they typically do not allow pressure equalization. Thus, the protector trips until the reset time is long
enough. This can be solved by unplugging the appliance for 5 to 10 minutes typically.

In the event of compressor failure, a check is made by measuring resistance directly on the current lead-in
to see whether the defect is due to motor damage or simply a temporary cut out of the winding protector.
If tests with resistance measurement reveal a connection through the motor windings from point M to S of
the current lead-in, but a broken circuit between point M and C and S and C, this indicates that the winding
protector is cut out. If so, wait to reset.

9

3.
OPENING THE REFRIGERATION
SYSTEM

Never open a refrigerating system before all components for the repair are available. The compressor, drier,
and other system components must be sealed off until a continuous assembly can occur.
Opening a defect system must be done in different ways depending on the refrigerant used. Fit a service
valve to the system and collect the refrigerant in the correct manner.

3.1
Flammable
refrigerants

R600a and R290 are hydrocarbons. These refrigerants are flammable and are only allowed for use in appli­ances which fulfill the requirements laid down in the latest revision of EN/IEC 60335-2-24. (To cover poten­tial risk originated from the use of flammable refrigerants). Consequently, R600a and R290 are only allowed
for use in household appliances designed for this refrigerant and fulfill the above-mentioned standard.
R600a and R290 are heavier than air and the concentration will always be highest at the floor.
R600a must only be stored and transported in approved containers and must be handled according to exist­ing guidelines.

The flammability limits are approx. as follows:

Refrigerant R600a R290

Lower limit 1.5 % by vol. (38g/m³) 2.1 % by vol. (39 g/m³)
Upper limit 8.5 % by vol. (203 g/m³) 9.5 % by vol. (177 g/m³)
Ignition temperature 460 °C / 860 °F 470 °C / 878 °F

In order to carry out service and repair on R600a and R290 systems, the service personnel must be properly
trained to be able to handle flammable refrigerants. This includes knowledge on tools, transportng the
compressor and refrigerant, and the relevant regulations and safety precautions when carrying out service
and repair. Do not use open fire when working with refrigerants R600a and R290!

Secop compressors for flammable refrigerants are provided with a special warning sign. The maximal filling
capacity is 150 g per system, which equates to approximately 8 g/m³ in a 20 m³ kitchen and thereby around
25 % of the lower flammability limit. These precautions minimize the risk of ignition in case of a leakage.
Under favorable conditions however, exceeding these values is officially allowed.
All manufacturers of HC-systems have to follow these safety regulations. Customer service, as well as
the repair of R600a and R290 applications, should only be accomplished by highly trained and experienced
personnel. This implies also knowledge about tools, transporting compressors and refrigerants as well as
laws, regulations, and standards.
National safety regulations demand leakage simulations and strictly require the isolation of electrical com­ponents close to the flow of refrigerants.

Yellow warning labels

Conversions from refrigerants R12 or R134a to R600a is not permitted, as the refrigerators are not approved
for operation with flammable refrigerants, and the electrical safety has not been tested according to existing
standards either. The same applies to conversions from refrigerants R22, R502, or R134a to R290.

The smaller R290 compressors, types T and N, are LST types. These often need a timer to ensure sufficient
pressure equalization time.

10

4.
MOUNTING

Brazing problems caused by oil in the connectors can be avoided by placing the compressor on its base plate
some time before brazing it into the system. The compressor must never be placed upside down.
The system should be closed within 15 minutes to avoid moisture and dirt penetration.

4.1
Connectors

The positions of connectors are found in the sketches. “C” means suction and must always be connected to
the suction line. “E” means discharge and must be connected to the discharge line. “D” means process and
is used for processing the system.

Most compressors are supplied with sealed connectors, which consist of a thick-walled copper plated steel
tube with great corrosion resistance and good braze ability. The connectors are welded in the compressor
housing and thus the weld cannot be destroyed by overheating during brazing operations. The seal is an
aluminum cap which gives a tight seal. Compressor with copper connectors are sealed with rubber plugs.
The aluminum cap sealing ("capsolut") offers a tight seali. The seal ensures that the compressors have not
been opened after leaving Secop´s production lines. In addition to that, the seal makes a protecting charge
of nitrogen superfluous.

220 V compressors are normally supplied with millimeter tubes, while 115 V compressors are supplied with
inch tubes. All connectors have a shoulder to provide optimal brazing conditions. Expanding the connectors
by more than 0.3 mm / 0.01 inch in is not allowed.
Compressors with an “S” in the model denomination and all NL/DL/SCE types have a direct intake system,
which means increased capacity. The suction connectors at these compressors must be connected to the
suction line to prevent capacity loss.

For the refrigerants R600a and R290, process tubes can be closed with a LOKRING® connection.
Brazing is not allowed on systems with flammable refrigerants.

11

The "capsoluts" are easily removed with an ordinary pair of pliers or a special tool as shown. The "capsolut"
cannot be remounted.

When the seals on the compressor connectors are
removed, the compressor must be mounted in the
system within 15 minutes to avoid moisture and dirt
penetration.

"Capsolut" seals on connectors must never be left in
the assembled system.

Oil coolers, if mounted (compressors from 7 cm

3

displacement), are made of copper tube and the tube con­nectors are sealed with rubber plugs. An oil-cooling coil must be connected in the middle of the condenser
circuit.

4.2
Expanding connectors

SC Twin compressors must have a non-return valve in the discharge line to compressor no. 2. If a change
in the starting sequence between compressor no.1 and no. 2 is desired, a non-return valve must be placed
in both discharge lines.

In order to create optimum conditions for braz­ing and to minimize the consumption of filler
metal, all tube connectors on Secop compres­sors have shoulders, as shown

It is possible to expand the connectors with in­side diameters f 6.2 mm to 6.5 mm which suit
1⁄4” (6.35 mm) tubes, but we advise against ex­panding the connectors by more than 0.3 mm
(0.01 inch). When expanding, it is necessary to
have a suitable counterforce on the connectors
so that they don’t break off.
A different solution to this problem would be to
reduce the diameter of the end of the connector
tube with special pliers.

12

4.3
Bending copper
connectors

Secop has changed most of its compressors to copper connectors to ensure easy brazing and handling.
Should additional extra handling or bending of connectors be required, it is the responsibility of the techni­cian to choose the proper bending method. Bending is not recommended without the standard support tools
used for adjusting or bending normal tubes shown below.
The following tools may be used for bending.

4.3.1
Spring benders

4.3.2
Lever-type benders

Spring benders are an efficient low-cost method for bending copper tubes. They are available in different
sizes to fit over the copper tube. Please ensure that you choose the correct size. The spring must be placed
over the full length of the bend. If you have difficulties removing the spring after bending, do not use force to
pull on the spring, as this may damage the spring. Simply twisting the spring and “unscrewing” the spring
will usually work. This procedure is only recommended for small adjustments.

Lever-type benders are easy to use and are calibrated for accurate bending. Many have scales or markings
to repeat the bending accuracy.

4.3.3
Tailor-made
bending tools

In some cases, special bending tools are necessary
due to space issues or special angles. This requires
a special geometry to protect the tube against wear
and tear on the profile (effective flow diameter).
If you need further information, please get in contact
with a bending specialist.

13

4.4
Tube adaptors

Instead of expanding the connectors or reducing the diameter of the connection tube, copper adapter tubes
can be used for service.
A 6/6.5 mm adapter tube can be used when a compressor with millimeter connectors (6.2 mm) is to be con­nected to a refrigerating system with 1⁄4” (6.35 mm) tubes.
A 5/6.5 mm adapter tube can be used when a compressor with a 5 mm discharge connector is to be con­nected to a 1⁄4” (6.35 mm) tube.

4.5
Filler metal

4.6
Brazing

For brazing, the connectors and copper tubes filler metals with a silver content as low as 2% can be used.
This means that the so-called phosphor filler metals can also be used when the connecting tube is made
of copper.
If the connecting tube is made of steel, a filler metal with high silver content, which does not contain phos­phor and which has a liquidus temperature below 740 °C / 1364 °F, is required. A flux is also needed for this
purpose.

The following are guidelines for brazing steel connectors whis is different to brazing copper connectors.
During heating, the temperature should be kept as close to the melting point of the filler metal as possible.
Overheating will lead to surface damage, so decreasing the chances of good brazing.

Use the “soft” heat in the torch flame when heating
the joint. Distribute the flame so at least 90 % of
the heat concentrates around the connector and

When the connector is cherry-red (approx. 600 °C /
1112 °F) apply the flame to the connecting tube for
a few seconds.

approx. 10 % around the connecting tube

Continue heating the joint with the “soft” flame and
apply filler metal.

Draw the filler metal down into the gap by slowly
moving the flame towards the compressor; then
completely remove the flame.

14

4.7
Brazing on suction
connectors
(compressors with
direct suction intake)

Secop uses telescope pipes or similar elements
inside the suction tube on some T- and N-Series
compressors, on all D- and X-Series compressors
and on the new SCE compressors to optimize energy
consumption.

4.7.1
Temperature at socket
TLX / NLE / NLU / NLV
DLE / DLX / DLV / XV

4.7.2
Temperature at socket
SCE

You can identify the compressors by the thicker suc­tion tube area near the compressor shell.
These telescope pipes are made out of plastic and
are sensitive to high heat exposure

Make sure when
brazing a tube into
the suction connec­tor that the section
with the telescope
never exceeds 150 °C
/ 302 °F.

The new range of
SCE compressors
features a telescope
inside the compres­sor on the suction
tube to optimize en­ergy consumption.
These telescopes are
made of rubber and
are sensitive to high
heat exposure.

Make sure when brazing a tube into the suction con­nector that the area with the telescope never ex­ceeds 350 °C / 662 °F and do not braze longer than
30 seconds.

TLX compressor with copper connectors

NLU compressor copper-plated steel connectors

NLE compressor with copper connectors (NLV similar)

4.7.3
Brazing on discharge
connector.
Temperature at socket
DELTA

4.7.4.
Heat protection

The DELTA compressor
uses a special discharge
connection element which
is directly connected to
the discharge tube to opti­mize power consumption.
This element is made out
of plastic and are sensitive
to high heat exposure.

Make sure when brazing a
tube into the discharge connector that the area with
the telescope never exceeds 240 °C / 464 °F and do
not braze longer than 10 seconds.

Use a fork burner and/or a damp cloth, if necessary.
A protective plate can also serve to protect the tele­scope from direct heat from a flame.

DLE compressor with copper connectors (DLX, DLV similar)

SCE compressor with copper connectors

XV compressor with copper connectors

Telescope pipes or similar elements make it no
longer possible to select the process connector
as the suction connector or vice versa. You must
choose the correct connector for the suction line.
Please refer to the corresponding data sheets.

DELTA compressor with copper (suction, process) and
copper-plated steel (discharge) connectors

15

4.8
Brazing methods and
requirements

The refrigeration and air conditioning industries depend on brazed copper tubes as a leak proof carrier for
pressurized refrigerant. The common approach to brazing copper to copper or copper to steel is to use filler
metal (copper alloy). Torch brazing with oxygen/fuel gas (acetylene in most cases) is standard practice in
heating these connections.

Two brazing methods are used

• With filler metal and flux

• With filler metal only

Basic requirements to have a good brazing connection

• Filler metal flows easily when clearance uniform and tight, between 0.038 mm and 0.076 mm /

0.0015 inch and 0.003 inch

• The wide 0.5 mm / 0.02 inch clearance severely limits the flow.

• The overlap need to be about 4 to 9 times of the tube thickness and is a function of the tube thickness
and required strength of the joint.

4.8.1
Filler Metal and Flux

Filler metal

Two types of filler rods are used for brazing copper tubes. These fillers are:

• Phosphorus – copper brazing alloys with melting point around 704 °C / 1300 °F and this temperature
depends on the alloy composition.
When phosphorus content reaches 8.37%,

Lower phosphorus content is needed when the clearance is greater than 0.127 mm / 0.005 inch.

the melting point is 710 °C / 1310 °F.

Caution: Alloys containing phosphorus should not be used to braze copper – steel joints.

These alloys should not be used on Secop compressors with steel copper coated connecting tubes.

The joint will not have sufficient ductility for high vibration application (compressor).

• High silver filler metal should be used to braze the copper-steel joints or other ferrous base metals.

The best are 40%; 45% and 56% silver rods.

• With optimum clearance, many brazing filler metals are suitable. It is necessary to heat only the joint to
suitable temperature above filler metal melting point.

Flux

• Fluxes are not designed for the removing oxides, coatings (in our case – painting tubes), oil, grease, dirt,
or other foreign materials from the tubes to be brazed. Prior to brazing, all parts must be subjected to
appropriate cleaning operation. The main function of flux is to make sure that the filler metal flows freely
through the brazing joint.

• Oxides are the principal source of surface contamination. The dissolution and removal of oxides during
brazing are also a function of a flux.

• The flux must also be fluid and displace readily by the molten brazing filler metal So as not to impair
metal flow.

• Wetting ability and viscosity of a flux at brazing temperature, therefore, are important properties.

• Some filler metals such as silver and phosphorus are self-fluxing.

• Flux residue generally should be removed to avoid corrosion from the remaining active chemicals.
The residue obtained from the flux, particularly when considerable oxide removal has occurred, is a
form of glass. Less formation of glass makes for easier flux residue removal. Removing flux from
properly cleaned, brazed tubes can usually be accomplished by washing in hot water accompanied by
light brushing. Preferably, this rinse should be done immediately after brazing operation. drying is highly
recommended after rinsing.

16

4.8.2
Corrosion

The type of corrosion affecting brazed joints are often similar to those acting upon the base metal and their
alloys. Brazed joints experience corrosion caused by environment, geometric factors, microstructure, or
composition of the brazed joint. The basic corrosions are:

• Galvanic corrosion

• High temperature corrosion

• Cracking complicated by corrosion

Galvanic corrosion can be a major concern because the brazed joints consists often a bond between dis
similar base and filler metal. If the braze is immersed in an electrolyte, galvanic corrosion may occur. The
electrolyte may be as simple as water. If flux is used and the customer is using water to clean the joint, they
create the electrochemical reaction. The distances between the anodic and cathodic reactions are on atomic
scale. The worst case scenario is using acid for cleaning the surface. We should remember that water is also
present in brazing fluxes either as water of hydration or separate addition for the purpose of making a paste
or liquid.

-

4.8.3.
Flame and heating

Flame

• The neutral flame should be used for copper-copper and copper – steel tubes.

Bluish to orange

Inner cone

Torch

bluish white

4.9
LOKRING® connections

(VULKAN Lokring
Rohrverbindungen GmbH
& Co. KG)

Bluish

Neutral flame - No acetylene feather

When the oxygen addition reaches the ratio for the fuel gas to be completely combust, the feather that ex
tended out from the bright inner cone disappears. This flame is used when the arc access of carbon in the
reducing flame is detrimental to the base metals or when maximum flame temperature is required.

Heating:

When brazing tubes type joints follow these steps for best results.

• First, heat the inside tube. Copper is a very excellent heat conductor and will draw the heat down inside
the joint.

• Then bring the torch to the fitting. Move the torch between the tube and fitting to ensure even heat, and
apply the filler metal. The phosphorus – copper brazing material will flow toward the heat into capillary
for a sound joint. Filler metal through the length of the capillary is desired.

• When copper is heated to the brazing temperature, surface oxides will flake off as the part cools. This
flaking can be detrimental inside the tube. In this application an inert gas such as nitrogen is bled through
the tube during and after brazing.

Systems containing the flammable refrigerants R600a or R290 must not be brazed. In such cases, a
LOKRING® connection as shown can be used.

-

Illustrations by kind permission of
VULKAN Lokring Rohrverbindungen GmbH & Co. KG

Newly made systems can be brazed as usual, as long as they have not been charged with a flammable
refrigerant. Charged systems are never to be opened by using a flame. Compressors from systems with a
flammable refrigerant must be evacuated to remove the refrigerant residues from the oil.
Furthermore, those refrigeration systems must be opened with a pipe cutter. The brazing on HC-cooling
circuits is only allowed if the existing refrigerant has been disposed according to regulations and if the high
and low-pressure circuits are subsequently flushed separately with nitrogen. Even if the compressor is not
to be replaced, the brazing is only allowed under flowing nitrogen as a protective gas. On all other occasions,
the brazing close to flammable refrigerants is strictly forbidden.
When working on a system, the connections have to be established with pressure fitted connections. With
a solderless connection, this can be established for aluminum, copper, or steel pipes. The connection con­sists of two rings and a connection piece to receive the two pipes, which is to be connected. Because of the
conical internal contour of the rings and the special external contour of the connection piece, the radius
of the connection piece will be reduced to the diameter of the pipes to generate a hermetic metal to metal
compound.

17

Prior to assembly, the pipe ends have to be cleaned thoroughly with fine steel wool or abrasive sheets, using
a rotating motion. Ths prevents scratches along the pipes, which could lead to an insufficent seal.
To ensure a sealed connection, the pipe ends are treated with LOKPREP®. This evens out any irregularities
on the pipe’s surface and quickly hardens. After the insertion of the pipe end into the connection pieces,
the pipes should be rotated by 360°, to guarantee the sealant spreads evenly. Afterwards, the two rings are
compressed to the stop in the middle with a special pair of pliers for manual assembly.
Depending on the material and the environmental temperature, the LOKPREP® hardens in three to four
minutes, so that all necessary connections can be established alongside the replacement of the compressor
and filter dryer as well as the filling process. Due to maximal precision in the manufacturing process, the
connection can be established with minimal effort. It guarantees an absolutely clean, inseparable and purely
mechanical pipe connection with high durability regarding the hermetical seal.
Servicing and repair for R600a and R290 systems is possible for skilled and well trained service technicians.
Our video "Compressor Service for Isobutane (R600a) and Propane (R290) – Step by Step" can be used as a
reference (https://www.secop.com/solutions/compressor-qa-tools/compressor-service/)
Local laws and regulations must also be taken into account. Very careful handling is required due to the
flammability of the gas, which is a potential danger during work on the refrigeration system.
The disposal of R290 and R600a does not include the filling of a recycling cartridge. Due to the low GWP, the
flammable refrigerants are directed away from the workplace into the open through a tube. External ignition
sources must be avoided During the process.
Good ventilation of the room is necessary and the discharge of the vacuum pump must be lead to open air.
The equipment of the service technician must meet the requirements of R600a and R290 in terms of evacu­ation quality and refrigerant charge accuracy. An electronic scale is recommended to control refrigerant
charge to within the needed accuracy.
The maximal filling capacity is 150 g / 5.3 oz. per system, which equates to approximately 8 g/m³ in a 20 m³
kitchen and thereby around 25 % of the lower flammability limit. These precautions minimize the risk of an
ignition in case of a leakage. Exceeding these values is officially allowed under favorable conditions.
All manufacturers of HC-systems have to follow these safety regulations. The customer service, as well as
the repair of R600a and R290 applications, should only be accomplished by highly trained and experienced
personnel.

4.10
Driers

Secop compressors are expected to be used in well dimensioned refrigerant systems including a drier con­taining an adequate amount and type of desiccant and with a suitable quality.
The refrigerating systems are expected to have a dryness corresponding to 10 ppm. As a max limit 20 ppm
is accepted.
The drier must be placed in a way ensuring that the direction of flow of the refrigerant follows gravitation.
Thus the MS beads are prevented from moving among themselves and therefore creating dust and possible
blockage at the inlet of the capillary tube. For capillary tube systems this also ensures a minimal pressure
equalizing time.
Pencil driers should be especially chosen carefully to ensure proper quality. In transportable systems only
driers approved for mobile application are to be used.
A new drier must always be installed when a refrigeration system has been opened.

7469

18

4.11
Driers and refrigerants

Water has a molecular size of 2.8 Ångström. Accordingly, molecular sieves with a pore size of 3 Ångström
should be suitable for normally used refrigerants.
MS with a pore size of 3 Ångström can be supplied by the following:

UOP Molecular Sieve Division, USA
(earlier Union Carbide)

R12 x x x
R22, R502 x x
R134a, R404A x x
HFC/HCFC blends x
R290, R600a x x

Grace Davision Chemical, USA

R12, R22, R502 x x
R134a x
HFC/HCFC blends x
R290, R600a x

CECA S.A., France

R12, R22, R502 x x
R134a x x
HFC/HCFC blends x
R290, R600a x

4A-XH6 4A-XH7 4A-XH9

574 594

NL30R Siliporite H3R

Driers with the following amount of desiccants are recommended:

Compressor Filter drier

P and T 6 gram or more

F and N 10 gram or more

SC 15 gram or more

In commercial systems, larger solid core driers are often
used. These are to be used for the refrigerants according to
the manufacturers instructions. If a burn-out filter is needed
in a repair case, please contact the supplier for more detailed
information.

4.12
Capillary tube in drier

Special care should be taken when brazing the capillary tube. When mounting the capillary tube it should
not be pushed too far into the drier, thus touching the gaze or filter disc, causing a blockage or restriction.
If, on the other hand, the tube is only partly inserted into the drier, blockage could occur during the brazing.
This problem can be avoided by making a “stop” on the capillary tube with a pair of special pliers as shown:

(3/16”)

19

5.
ELECTRICAL EQUIPMENT

The compressors are equipped with a single phase AC motor. The electrical equipment is classified as
“normal tight” (IP20). The motor protector is built into the motor (winding protector). Exceptions include
compressors with the denominations TF/TT, NF/NT, FF, some SCs and KAPPA and DELTA. Earth connec­tions are located on the bracket around the current lead in of the compressor (exception KAPPA & DELTA).

No attempt must be made to start the compressor without a complete starting device.

Never use a starting device of an old compressor because this may cause a compressor failure. No attempt
must be made to start the compressor without the complete starting equipment.
For information on the right starting devices, please see Data Sheets for the compressor.
For safety reasons the compressor must always be earthed or otherwise additionally protected. Keep inflam­mable material away from the electrical equipment. The compressor must not be started under vacuum.
R134a: With some exceptions, these compressors are designed with universal motors which means that
they can obtain a high (HST) or low starting torque (LST) depending on the external electrical
equipment used.

5.1
LST (RSIR)
starting device

R600: Nearly all compressors for R600a are designed only for use with Low Starting Torque (LST).

R290: All compressors for R290 are designed for use with Low Starting Torque (LST) or

High Starting Torque (HST).

R404A/R507 All compressors for R404A/R507 and R407C are designed only for use with
and R407C: High Starting Torque (HST).

Compressors with the motor type Resistant Start Induction Run (RSIR) have a starting device for Low Start­ing Torque (LST). The design of the electrical equipment depends on the actual compressor design. The
following designs of starting devices exist:

a) PTC + cord relief + cover, the motor protector is built into the motor (winding protector),

Mount the starting device on the current lead-in of the compressor. Pressure must be applied to the center
of the starting device so that the clips are not deformed. Mount the cord relief on the bracket under the
starting device.
Pressure must be applied to the center of the starting device when dismantling so that the clips are not
deformed. Place the cover over the starting device and screw it to the bracket.

b) Relay housing incl. motor protector + cord relief + cover (alternative: terminal board with cord relief)

Terminal board with cord relief: The relay is mounted by applying pressure on the center of the relay. The
cover is fixed with a clamp.
PTC with external protector: The protector is placed on the bottom terminal pin and the PTC on the 2 on the
top. The cover is fixed with a clamp. No cord relief is available for this equipment.

The PTC starting device requires pressure equalization before each start. This starting device is normally
used in well designed refrigerating systems with capillary tube as throttling device. The PTC needs a com­pressor standstill period of 5 minutes to cool down before each start.

5.2
LST (RSCR)
starting device

20

Compressors with the motor type Resistant Start Capacitor Run (RSCR) have a starting device for Low Start­ing Torque (LST). This starting device consists of a PTC and a run capacitor.

The PTC starting device requires pressure equalization before each start. This starting device is normally
used in well designed refrigerating systems with capillary tube as throttling device.
The PTC needs a compressor standstill period of 5 minutes to cool down before each start.

5.3
PTC protection screen

To fulfil the requirements of EN 60355-2-34 the pro­tection screen 103N0476 must be applied to the PTC
starting device.

The PTC protection screen is not needed together with
an ePTC (surface temp. < 82 °C / 180 °F).

5.4
HST (CSIR) starting
equipment

Compressors with the motor type Capacitor Start Induction Run (CSIR) have a starting device for High Start­ing Torque (HST). This starting device consists of a starting relay and a starting capacitor. The following
designs of starting devices are availabl:

a) Relay + starting capacitor + cord relief + cover

Mount the starting relay on the current lead-in on the compressor. Apply pressure to the center of the start­ing relay to avoid deforming the clips. Fasten the starting capacitor to the bracket on the compressor.
Mount the cord relief in the bracket under the starting relay. Place the cover over the starting relay and
screw it to the bracket or lock it in position with the integrated hooks.

b) Relay housing including motor protector + starting capacitor + cord relief (2x)

Mount the starting relay on the current lead-in on the compressor. Apply pressure to the center of the start­ing relay to avoid deforming the clips. Fasten the starting capacitor to the bracket on the compressor.
Place the cover over the starting relay and lock it in position with the locking clamp.

c) Relay + starting capacitor (with bracket) + cover/ protector/ protector holder (parts of the compressor),

used for compressors which have an external protector.

Fasten the starting capacitor to the bracket. Place the cover over the external protector and lock it in posi­tion with the locking clamp.

The starting device requires no pressure equalization before each start and is normally used in refrigerating
systems with expansion valve as throttling device or in capillary tube systems where pressure equalizing is
not obtained during standstill periods.

The starting capacitor is designed for short time cut in. “1.7% ED”, which is stamped on the starting capaci­tor, means for instance max. 10 cut ins per hour each with duration of 6 seconds (normally shorter than 1
sec).

5.5
HST (CSR)
starting equipment

Compressors with the motor type Capacitor Start Run (CSR) have a starting device for High Starting Torque
(HST). The following designs of starting devices exist:

a) Relay + starting capacitor + run capacitor + terminal board + cord relief + cover

Mount the terminal box on the current lead-in. Note that the leads must face upwards. Mount the cord relief
in the bracket under terminal box. Place the cover.

b) Relay + starting capacitor (with bracket) + run capacitor + cover/ protector/ protector holder (parts of

compressor), used for compressors which have an external protector.

Fasten the starting capacitor to the bracket. Place the cover over the external protector and lock it in posi­tion with the locking clamp.

The starting capacitor is designed for short time cut in. “1.7% ED”, which is stamped on the starting capaci­tor, means for instance max. 10 cut ins per hour each with a duration of 6 seconds.

21

5.6
Equipment for SC Twin
compressors

To ensure optimum starting and the smallest possible mains load, we recommend that the compressors
be equipped with a time delay relay for start of the second compressor. Twin compressors can operate with
capacity regulation depending on the controls used.
Depending on the motor type (CSR/CSIR) all accessories needed are illustrated in the drawing below.

The use of a time delay (e.g. 117N0001) is recommended for starting the second section (15 seconds time
delay). If a time delay is used, the connection on the terminal board between L and 1 must be removed from
the compressor no. 2 connection box. If thermostat for capacity control is used, the connection on the ter­minal board between 1 and 2 must be removed.

5.7
Connections

5.8
Further reading

The electrical equipment is equipped with connectors depending on the ordered code number,
Starting relays: 6.3 mm / 1/4” spade connectors only
PTCs: 6.3 mm / 1/4” or 4.8 mm / 3/16” spade connectors and screws
The power supply must be connected as shown in the wiring diagrams for the chosen electrical equipment
given in the actual data sheets or Single Pack Instructions.
The compressor application must factor in power supply from an electrical circuit with the appropriate fuse
or circuit breaker. In addition, the use of a GFCI (Ground Fault Circuit Interrupter) or RCD (Residual Current
Device) is recommended.

Single Pack Instructions for all our AC compressors showing wiring diagrams, warnings and connector
locations can be found in chapter 6.til 29. or on our website:
www.secop.com/products/technical-literature/instruction/single-pack-instructions/

Electronic Units Instructions for our AC and DC compressors can be found here:
www.secop.com/products/technical-literature/instruction/electronic-units-instructions/

Operating Instructions for our variable speed compressor can be found here:
www.secop.com/products/technical-literature-operating-instructions/

22

6.
PL COMPRESSORS

PL Compressors

!

February 2011 DES.I.200.H1.02 / 520N0370 1/2

PL Compressors

Service/Repair – R600a

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.H1.02 / 520N0370 February 2011

23

7.
TF COMPRESSORS

TF Compressors

February 2011 DES.I.200.J1.02 / 520N0372 1/2

TF Compressors

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.J1.02 / 520N0372 February 2011

24

8.
TL COMPRESSORS

TL Compressors

!

December 2017 DES.I.200.I2.02 / 520N0371 1/2

TL Compressors

Service/Repair – R600a, R290 Brazing on Suction

Connectors (Direct Intake)

Refer to Product Bulletin:

Brazing on Suction Connectors

(Compressors with Direct Suction Intake)

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.I2.02 / 520N0371 December 2017

25

9.
TT COMPRESSORS

TT Compressors

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

1/1 DES.I.200.K1.02 / 520N0373 February 2011

26

10.
DL COMPRESSORS

DL Compressors

!

December 2017 DES.I.200.N3.02 / 520N0375 1/2

DL Compressors

Service/Repair – R600a, R290 Brazing on Suction

Connectors (Direct Intake)

Refer to Product Bulletin:

Brazing on Suction Connectors

(Compressors with Direct Suction Intake)

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.N3.02 / 520N0375 December 2017

27

11.
NF COMPRESSORS

NF Compressors

February 2011 DES.I.200.E1.02 / 520N0367 1/2

NF Compressors

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.E1.02 / 520N0367 February 2011

28

12.
NL COMPRESSORS

NL Compressors

!

December 2017 DES.I.200.F2.02 / 520N0368 1/2

NL Compressors

Service/Repair – R600a, R290 Brazing on Suction

Connectors (Direct Intake)

Refer to Product Bulletin:

Brazing on Suction Connectors

(Compressors with Direct Suction Intake)

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.F2.02 / 520N0368 December 2017

29

13.
NT COMPRESSORS

NT Compressors

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

1/1 DES.I.200.G1.02 / 520N0369 February 2011

30

14.
FF COMPRESSORS

FF Compressors

February 2011 DES.I.200.B1.02 / 520N0365 1/2

FF Compressors

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.B1.02 / 520N0365 February 2011

31

15.
FR COMPRESSORS

FR Compressors

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

1/1 DES.I.200.D1.02 / 520N0366 February 2011

FR Compressors

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

1/1 DES.I.200.D1.02 / 520N0366 February 2011

32

16.
SC COMPRESSORS

SC Compressors

February 2011 DES.I.200.A1.02 / 520N0536 1/2

SC Compressors

Service/Repair – R290

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.A1.02 / 520N0536 February 2011

33

17.
SC COMPRESSORS (EXTERNAL PROTECTOR)

SC Compressors

(External Protector)

ENGLISH Black Brown Blue

DEUTSCH Schwarz Braun Blau

FRANÇAIS Noir Marron Bleu

ESPAÑOL Negro Marrón Azul

ITALIANO Nero Marrone Blu

NEDERLANDS Zwart Bruin Blauw

DANSK Sort Brun Blå

SVENSKA Svart Brun Blå

SUOMEKSI Musta Ruskea Sinine

Русский Чёрный

August 2017 DES.I.200.C2.02 / 520N0319 1/2

S C R

Корич­невый

Синий

SC Compressors

(External Protector)

Service/Repair – R290

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.C2.02 / 520N0319 August 2017

34

18.

IP44 EQUIPMENT FOR SC COMPRESSORS

Instructions

IP44 Equipment for SC Compressors

Back Cover 103N2020 + IP44 Starting Capacitor 80μF 117U5117

4

!

1

2

3

5

6

7

“Click!“

“Click!“

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already

on order provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective
companies. Secop and the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

1/1 DES.I.200.O1.02 / 520N0525 January 2013

35

19.
SCE COMPRESSORS

SCE Compressors

(External Protector)

ENGLISH Black Brown Blue

DEUTSCH Schwarz Braun Blau

FRANÇAIS Noir Marron Bleu

ESPAÑOL Negro Marrón Azul

ITALIANO Nero Marrone Blu

NEDERLANDS Zwart Bruin Blauw

DANSK Sort Brun Blå

SVENSKA Svart Brun Blå

SUOMEKSI Musta Ruskea Sinine

Русский Чёрный

S C R

Корич­невый

Синий

ENGLISH Black Brown Blue

DEUTSCH Schwarz Braun Blau

FRANÇAIS Noir Marron Bleu

ESPAÑOL Negro Marrón Azul

ITALIANO Nero Marrone Blu

NEDERLANDS Zwart Bruin Blauw

DANSK Sort Brun Blå

SVENSKA Svart Brun Blå

SUOMEKSI Musta Ruskea Sinine

Русский Чёрный

S C R

Корич­невый

Синий

May 2018 DES.I.200.O4.02 / 520N0380 1/2

SCE Compressors

(External Protector)

Service/Repair – R290 Brazing on Suction

Connectors (Direct Intake)

Refer to Product Bulletin:

Brazing on Suction Connectors

(SCE Compressors with Direct Suction Intake)

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.O4.02 / 520N0380 May 2018

36

20.
GS COMPRESSORS

GS Compressors

S C R

ENGLISH Black Brown Blue

DEUTSCH Schwarz Braun Blau

FRANÇAIS Noir Marron Bleu

ESPAÑOL Negro Marrón Azul

ITALIANO Nero Marrone Blu

NEDERLANDS Zwart Bruin Blauw

DANSK Sort Brun Blå

SVENSKA Svart Brun Blå

SUOMEKSI Musta Ruskea Sinine

Русский Чёрный

Корич­невый

Синий

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

1/1 DES.I.200.M1.02 / 520N0137 February 2011

37

21.
SC TWIN COMPRESSORS

SC Twin

Compressors

ENGLISH

Русский

DEUTSCH

FRANÇAIS

ESPAÑOL

ITALIANO

NEDER­LANDS

DANSK

SVENSKA

Safety pres­sure control

Предохрани­тельное реле
давления

Sicherheits­druckschalter

Pressostat Relais de

Presostato
de seguridad
Pressostato Relè di ritar-

Pressostaat Tijdvertra-

Sikkerheds­pressostat
Säkerhets­pressostat

Time delay
relay

Реле
задержки
времени

Zeitrelais
(verzögernd)

temporisation

Relé de
retardo

do avviam.

gings relais

Tidsforsinkel­sesrelæ
Tidsfördröj­ningsrelä

Blue Black Brown Remove wire L-1 if time

Синий Чёрный Корич-

Schwarz

Blau

Bleu Noir Marron Supprimer la connection

Azul Negro Marrón Quitar cable L-1, si se

Blu Nero

Blauw Zwart Bruin Verwijder draad L-1

Blå Sort Brun Ved tidsforsinkelse fjernes

Blå Svart Brun Vid anslutning av tidför-

delay is used

Отсоедините провод L-1,

невый

если используется реле
задержки времени

Braun Bei Benutzung der Anlaß-

verzögerung Brücke L-1
entfernen

L-1 si le relais de tempori­sation est utilisé

utiliza un relé de retardo

Marrone

Eliminare il cavo L-1 se è
utilizzato il ritardatore

indien tijdvertraging wordt
toegepast

ledning L-1

dröjningsrelä avlägsnas
bygling L-1

Remove wire 1-2 if ther­mostat 2 is used

Отсоедините провод 1-2,
если используется
термостат 2

Bei Benutzung von
Thermostat 2 Brücke 1-2
entfernen
Supprimer la connection
1-2 si thermostat 2 est
utilisé

Quitar cable 1-2, si se

utiliza el termostato 2
Eliminare il cavo 1-2 se è
utilizzato il termostato 2
Verwijder draad 1-2
indien thermostaat wordt
toegepast
Ved termostat 2 fjernes
ledning 1-2
Vid anslutning av termo­stat 2 avlägsnas bygling
1-2

February 2011 DES.I.200.L1.02 / 520N0378 1/2

A B C D E F

38

21.
SC TWIN COMPRESSORS

SC Twin

Compressors

A B C D E F

ENGLISH

Русский

DEUTSCH

FRANÇAIS

ESPAÑOL

ITALIANO

NEDER­LANDS

DANSK

SVENSKA

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products
without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being

necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and the Secop
logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

Safety pres­sure control

Предохрани­тельное реле
давления

Sicherheits­druckschalter

Pressostat Relais de

Presostato
de seguridad
Pressostato Relè di ritar-

Pressostaat Tijdvertra-

Sikkerheds­pressostat
Säkerhets­pressostat

Time delay
relay

Реле
задержки
времени

Zeitrelais
(verzögernd)

temporisation

Relé de
retardo

do avviam.

gings relais

Tidsforsinkel­sesrelæ
Tidsfördröj­ningsrelä

Blue Black Brown Remove wire L-1 if time

Синий Чёрный Корич-

Schwarz

Blau

Bleu Noir Marron Supprimer la connection

Azul Negro Marrón Quitar cable L-1, si se

Blu Nero

Blauw Zwart Bruin Verwijder draad L-1

Blå Sort Brun Ved tidsforsinkelse fjernes

Blå Svart Brun Vid anslutning av tidför-

delay is used

Отсоедините провод L-1,

невый

если используется реле
задержки времени

Braun Bei Benutzung der Anlaß-

verzögerung Brücke L-1
entfernen

L-1 si le relais de tempori­sation est utilisé

utiliza un relé de retardo

Marrone

Eliminare il cavo L-1 se è
utilizzato il ritardatore

indien tijdvertraging wordt
toegepast

ledning L-1

dröjningsrelä avlägsnas
bygling L-1

Remove wire 1-2 if ther­mostat 2 is used

Отсоедините провод 1-2,
если используется
термостат 2

Bei Benutzung von
Thermostat 2 Brücke 1-2
entfernen
Supprimer la connection
1-2 si thermostat 2 est
utilisé

Quitar cable 1-2, si se

utiliza el termostato 2
Eliminare il cavo 1-2 se è
utilizzato il termostato 2
Verwijder draad 1-2
indien thermostaat wordt
toegepast
Ved termostat 2 fjernes
ledning 1-2
Vid anslutning av termo­stat 2 avlägsnas bygling
1-2

2/2 DES.I.200.L1.02 / 520N0378 February 2011

39

22.
XV COMPRESSORS

Instructions

XV Compressors

160-264V, 50/60Hz

with 105N5xxx

Series Controllers

for version105N5320 refer to Instructions DES.I.300.V_

for version105N5022 refer to Instructions DES.I.300.G_

Operating Instructions https://www.secop.com/products/technical-literature-operating-instructions/

Attached controller (PFC):

Attached controller:

Detached controller:

for version 105N5052

refer to Instructions

DES.I.300.H_

Recommended tool: 102B8950

Connectors:
C = Suction
D = Process
E = Discharge

February 2018 DES.I.300.C4.02 / 520N1205 1/2

40

22.
XV COMPRESSORS

Instructions

XV Compressors

160-264V, 50/60Hz

with 105N5xxx

Series Controllers

Max. pressure Max. pressure is 20 bar. Abrupt pressure drop > 3 bar/sec is not permitted.

Evacuation Two-sided evacuation (suction and discharge side) is essential.

Supply voltage

Oil charge

Mounting instructions
Compressor service

Horizontal Connectors up Electrical lead-in up Connectors down

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already

on order provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective
companies. Secop and the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.300.C4.02 / 520N1205 February 2018

230 V (+15 % / - 30 %), 50/60 Hz, only with electronic controller
Refer to XV controller Instructions for wiring diagrams.

The compressor is already charged with 115 ml oil (5 cSt mineral).

No oil should be removed or relled.

https://www.secop.com/products/technical-literature-guidelines/
https://www.secop.com/solutions/compressor-qa-tools/compressor-service/

Shipment positions

of refrigeration appliances

Electrical lead-in

down

Base plate up

41

23.
XV COMPRESSORS

Instructions

XV Compressors

100-127V, 50/60Hz

with 105N5xxx

Series Controllers

for version105N5312 refer to Instructions DES.I.300.Y_

for version105N5310 refer to Instructions DES.I.301.A_

Operating Instructions https://www.secop.com/products/technical-literature-operating-instructions/

Attached controller:

Attached controller:

Detached controller:

for version 105N5150

refer to Instructions

DES.I.300.K_

Connectors:
C = Suction
D = Process
E = Discharge

April 2018 DES.I.301.D1.02 / 520N0381 1/2

42

23.
XV COMPRESSORS

Instructions

XV Compressors

100-127V, 50/60Hz

with 105N5xxx

Series Controllers

Max. pressure

Evacuation Two-sided evacuation (suction and discharge side) is essential.

Supply voltage

Oil charge

Mounting instructions
Compressor service

Horizontal Connectors up Electrical lead-in up Connectors down

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already

on order provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective
companies. Secop and the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.301.D1.02 / 520N0381 April 2018

Max. pressure is 20 bar / 290 PSI.
Abrupt pressure drop >3 bar/sec / >43.5 PSI/sec. is not permitted.

115 V (±15 %), 50/60 Hz, only with electronic controller.
Refer to XV controller Instructions for wiring diagrams.

The compressor is already charged with 115 ml / 3.89  oz oil
(5 cSt mineral). No oil should be removed or relled.

https://www.secop.com/products/technical-literature-guidelines/
https://www.secop.com/solutions/compressor-qa-tools/compressor-service/

Shipment positions

of refrigeration appliances

Electrical lead-in

down

Base plate up

43

24.
DLV COMPRESSORS

Instructions

DLV Compressors

100-127V 50/60Hz

105N446x

Series Controllers

December 2017 DES.I.300.Z2.02 / 520N1265 1/2

44

24.
DLV COMPRESSORS

Instructions

DLV Compressors

100-127V 50/60Hz

105N446x

Series Controllers

Service/Repair R290 Brazing on Suction Connectors (Direct Intake)

Refer to Product Bulletin: Brazing on Suction Connectors

(Compressors with Direct Suction Intake)

Airow 3 m/s

Operating conditions 105N4460 + 5 °C to 43 °C - humidity < 90 % rH non condensing
Storage conditions -25 °C to 70 °C - humidity < 90 % rH non condensing
Supply voltage 100-127 V (± 10 %)
Frequency 50/60 Hz

Input power rating 450 W

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already

on order provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective
companies. Secop and the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.300.Z2.02 / 520N1265 December 2017

45

25.
NLV COMPRESSORS

Instructions

NLV Compressors

220-240V 50/60Hz

105N47xx

Series Controllers

December 2017 DES.I.300.N3.02 / 520N1234 1/2

46

25.
NLV COMPRESSORS

Instructions

NLV Compressors

220-240V 50/60Hz

105N47xx

Series Controllers

Service/Repair R290 Brazing on Suction Connectors (Direct Intake)

Refer to Product Bulletin: Brazing on Suction Connectors

(Compressors with Direct Suction Intake)

Airow 3 m/s

Operating conditions + 5 °C to 43 °C - humidity < 90 % rH non condensing
Storage conditions -25 °C to 70 °C - humidity < 90 % rH non condensing
Supply voltage 230 V (+15 % / - 20 %)
Frequency 50/60 Hz

Input power rating 1000 W at 230 V (+15 % / - 20 %)

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already

on order provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective
companies. Secop and the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.300.N3.02 / 520N1234 December 2017

47

26.
NLV COMPRESSORS

Instructions

NLV Compressors

100-240V 50/60Hz

105N476x

Series Controllers

April 2018 DES.I.301.C1.02 / 520N1252 1/2

48

26.
NLV COMPRESSORS

Instructions

NLV Compressors

100-240V 50/60Hz

105N476x

Series Controllers

Service/Repair R290 Brazing on Suction Connectors (Direct Intake)

Refer to Product Bulletin: Brazing on Suction Connectors

(Compressors with Direct Suction Intake)

Airow 3 m/s

Operating conditions + 5 °C to 43 °C - humidity < 90 % rH non condensing
Storage conditions -25 °C to 70 °C - humidity < 90 % rH non condensing
Supply voltage 100-240 V (± 10 %)
Frequency 50/60 Hz

Input power, max. 1000 W

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already

on order provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective
companies. Secop and the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.301.C1.02 / 520N1252 April 2018

49

27.
SLV COMPRESSORS

Instructions

SLV Compressors

220-240V 50/60Hz

105N46xx

Series Controllers

Mains red
RL 1 blue
RL 2 yellow
RL 3 black
RL 4 grey
RL 5 green

S3 red
S4 blue
S5 yellow
S6 black
DI grey
Display green

February 2012 DES.I.300.A2.02 / 520N0379 1/2

50

27.
SLV COMPRESSORS

Instructions

SLV Compressors

220-240V 50/60Hz

105N46xx

Series Controllers

Service/Repair – R290

Airow 3 m/s

Operating conditions -10 °C to 43 °C - humidity < 90 % rH non condensing

Operating conditions 105N4630 + 5 °C to 43 °C - humidity < 90 % rH non condensing

Storage conditions -20 °C to 70 °C - humidity < 90 % rH non condensing

Supply voltage 230 V (+15 % / - 20 %)

Frequency 50/60 Hz

Input power rating 1000 W at 230 V (+15 % / - 20 %)

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already

on order provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective
companies. Secop and the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.300.A2.02 / 520N0379 February 2012

51

28.
DELTA COMPRESSORS

DELTA Compressors

April 2018 DES.I.200.Q1.02 / 520N0383 1/2

DELTA Compressors

1.

2.

3.

Adapter plate

Brazing on

Discharge Connector

Service/Repair – R600a

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.Q1.02 / 520N0383 April 2018

52

29.
KAPPA COMPRESSORS

KAPPA Compressors

Service/Repair – R600a

April 2018 DES.I.200.P1.02 / 520N0382 1/2

KAPPA Compressors

Service/Repair – R600a

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary to specications already agreed. All trademarks in this material are the property of the respective companies. Secop and
the Secop logotype are trademarks of Secop GmbH. All rights reserved. www.secop.com

2/2 DES.I.200.P1.02 / 520N0382 April 2018

53

30.
EVACUATION

After brazing, evacuation of the refrigeration system begins. When a vacuum below 1 mbar is achieved, the
system is pressure equalized before the final evacuation and charging of refrigerant. If a pressure test has
been performed directly before evacuation, the evacuation process is to be started smoothly, with low pump­ing volume, to avoid oil loss from the compressor. Many opinions exist on how evacuation can be carried out
in the best way. Depending on the volume conditions of the suction and the discharge side in the refrigera­tion system, it might be necessary to choose one of the following procedures for evacuation.
One-sided evacuation with continuous evacuation until a sufficiently low pressure in the condenser has been
obtained. One or more short evacuation cycles with pressure equalization in between is necessary.
Two-sided evacuation with continuous evacuation until a sufficiently low pressure has been acvhieved.
These procedures naturally require a good uniform quality (dryness) of the components used.

The first figure shows a typical
course of a one-sided evacuation
from the process tube of the com­pressor. It also shows a pressure
difference measured in the con­denser. This can be remedied by
increasing the numbers of pres­sure equalizations. The dotted
line shows a procedure where two
sides are evacuated simultane­ously.
If time is limited, the final vacuum
to be obtained is only dependent
on the capacity of the vacuum
pump and the content of non con­densable elements or refrigerant
residues in the oil charge.
The advantage of a two-sided
evacuation is that it is possible to obtain a considerably lower pressure in the system within a reasonable
process time. This implies that it will be possible to build a leak check into the process in order to sort out
leaks before charging the refrigerant.

30.1
Vacuum pumps

54

The second figure is an example
of a pre-evacuation process with
built-in leak test. The level of
vacuum obtained depends on the
process chosen. Two-sided evacu­ation is recommended.

An explosion safe vacuum pump must be used for systems with the flammable refrigerants R600a and R290.
The same vacuum pump can be used for all refrigerants if it is charged with Ester oil.

31.
CHARGING OF REFRIGERANT

Always charge the system with the type and amount of refrigerant recommended by the manufacturer.
In most cases the refrigerant charge is indicated on the type label of the appliance. Charging can be done
according to volume or weight. Use a charging glass for charging by volume. Flammable refrigerants must
be charged by weight.

31.1
Maximum refrigerant
charge

If the max refrigerant charge is exceeded the oil in the compressor may foam after a cold start and the valve
system could be damaged. The refrigerant charge must never be too large to be contained on the condenser
side of the refrigeration system. Only the refrigerant amount necessary for the system to function must be
charged.

Compressor type

P 300 g / 10.6 oz. 120 g / 4.2 oz. - ­T 400 g / 14.1 oz.* 150 g / 5.3 oz. 150 g / 5.3 oz. 600 g / 21.2 oz.
DELTA - 150 g / 5.3 oz. - ­X - 150 g / 5.3 oz. - ­D, DLV - 150 g / 5.3 oz. 150 g / 5.3 oz. ­TL ... G 600 g / 21.2 oz. 150 g / 5.3 oz. 150 g / 5.3 oz. ­KAPPA - 150 g / 5.3 oz. - ­N, NLV 400 g / 14.1 oz.* 150 g / 5.3 oz. 150 g / 5.3 oz. ­F 900 g / 31.2 oz. 150 g / 5.3 oz. - 850 g / 30 oz.
S, SLV 1300 g / 45.9 oz. - 150 g / 5.3 oz. 300 g / 45.9 oz.
G 2000 g / 70.5 oz. - - 2000 g / 70.5 oz.
SC Twin 2200 g / 77.6 oz. - - 2200 g / 77.6 oz.

* Single types with higher limits available, see data sheets

For the refrigerants R600a and R290 the closing of the process tube can be done using a LOKRING® con­nection. Brazing is not allowed on systems with flammable refrigerants.

R134a R600a R290 R404A

Max. refrigerant charge

55

32.
TESTING

Hermetic refrigerating systems must be tight. If a household appliance is to function over a reasonable
lifetime, it is necessary to have leak rates below 1 gram per year. High quality leak testing equipment is
thus required. All connections must be tested for leaks with leak testing equipment. This can be done using
electronic leak testing equipment.

The discharge side of the system (from discharge connector to the condenser and to the drier) must be
tested with the compressor running. The evaporator, the suction line, and the compressor must be tested
during idle periods and equalized pressure.
If refrigerant R600a is used, leak testing should be done by means other than the refrigerant, e.g. helium,
as the equalizing pressure is low, so often below ambient air pressure. Thus, leaks would not be detectable.

32.1
Testing of the
appliance

Before leaving a system it must be checked that cooling down of the evaporator is possible and that the
compressor operates satisfactory on the thermostat. For systems with a capillary tube as a throttling device,
it is important to check that the system is able to pressure equalize during standstill periods. The low start­ing torque compressor must also be able to start the system without causing trips on the motor protector.
In a situation where the whole system has to be tested with high pressure, we recommend a test with nitro­gen, dry air or helium. You should not exceed pressure of 10 bar on the low pressure side of the compressor.
For the high pressure side, 32 bar is the limit. Ensure that all parts of the cooling system withstand the
pressure. We can only take assigned responsibility for the compressor.

56

33.
MOUNTING ACCESSORIES

Mounting Code Bolt / pin Comp. Type of packaging Compressor series Parts

number dimension base hole list
Bolt joint 118-1917
Bolt joint 118-1918

M6 metric 16 mm Single pack for one compressor BD- / P- / T- / X- / D- / N- / F- / S-Series
M6 metric 16 mm Industrial pack in any quantity BD- / P- / T- / X- / D- / N- / F- / S-Series

I
I

Bolt joint 107B9150

Bolt joint 118-1946
Bolt joint 118-1949

Snap-on 118-1947

Snap-on 118-1919

Parts list (4 pcs. per compressor needed) Symbol drawings

Sleeve Ø 8 mm x 6.4 mm x 0.8 mm 112-2052
Washer Ø 20 mm x Ø 6.7 mm x 1 mm 112-2053
Bolt M6 x 25 mm 681X1130

I

Nut M6 118-3659
Rubber grommet 16 mm 118-3661
Sleeve Ø 11 mm x 8.6 mm x 1.2 mm 107B9152
Washer Ø 20 mm x Ø 8.8 mm x 1.2 mm 107B9155
Bolt M8 x 40 mm 107B9153

II

Nut M8 107B9154
Rubber grommet 19 mm 107B9151
Sleeve Ø 8.3 mm x 6.7 mm x 0,8 mm 112-2088
Washer Ø 20 mm x Ø 6.7 mm x 1 mm 112-2053
Bolt 1/4 x 1 inch, 20 UNC 119-3002

III

Nut 1/4 inch, 20 UNC 119-3031
Rubber grommet 16 mm 118-3661
Sleeve Ø 9.5 mm x 7.9 mm x 0,8 mm 112-2085
Washer Ø 20 mm x Ø 6.7 mm x 1 mm 112-2053
Bolt 1/4 x 1 1/4 inch, 20 UNC 119-3002

IV

Nut 1/4 inch, 20 UNC 119-3031
Rubber grommet 19 mm 118-3666
Steel pin 118-3586
Washer Ø 21 x Ø 8.1 mm x 0.9 mm 118-3588

V

Clip 118-3585
Rubber Grommet 16 mm 118-3661

M8 metric 19 mm Single pack for one compressor G-Series

1/4 inch 16 mm Single pack for one compressor BD- / P- / T- / X- / D- / N- / F- / S-Series
1/4 inch 19 mm Single pack for one compressor all with 19 mm base holes (except G-Series)

Ø 7.3 mm 16 mm Single pack for one compressor

Ø 7.3 mm 16 mm Industrial pack in any quantity

BD- / P- / T- / X- / D- / N- / F- / S-Series

KAPPA / DELTA

BD- / P- / T- / X- / D- / N- / F- / S-Series

KAPPA / DELTA

II

III
IV

V

V

57

NOTES

58

NOTES

59

www.secop.com

OUR IDENTITY
At Secop we are committed to our industry and are genuinely passionate about the difference we are able to
make for our customers. We understand their business and objectives and the challenges of today's world of
refrigeration and cooling systems.
We work in a straightforward way, being open, direct and honest because we want to make things clear and easy.
Our people are committed to increasing value for our customers and constantly strive for better performance,
knowing that our own progression and success is dependent on theirs.

A NEWCOMER WITH 60 YEARS OF EXPERIENCE
Formerly known as Danfoss Compressors, Secop is one of the founding fathers of modern compressor
technology with an experience that goes back to the beginning of the 1950s.
For more than 25 years, Secop has been setting the standard in compressor technology by developing highly
efficient variable speed compressors and by compressors working with hydrocarbons.

OUR JOURNEY SO FAR

1970

1956

Production facility and
headquarters in Flensburg,
Germany founded.

1958

Start of production for
PW compressors.

Low HighCooling Capacity

HOUSEHOLD

AC

P-Series

Introduction of SC
compressors.
The birth of a standard-
setting platform in the light
commercial market.

1972

Introduction of FR
compressors.

1990

Introduction of NL
compressors.

1977

Introduction TL and BD
compressors.

1992

Introduction of PL
compressors.

1993

Start of production with
natural refrigerant R600a (isobutane).
Production facility in Crnomelj,
Slovenia founded.

1999

Start of production with
natural refrigerant
R290 (propane).

LIGHT COMMERCIAL

T-Series DELTA X-Series KAPPA D-Series

2002

Production facility in Zlate
Moravce, Slovakia founded.

2013

2005

Introduction of GS
compressors.

2008

Production facility
in Wuqing, China
founded.

2010

Introduction SLV-CNK.2
and SLV-CLK.2 variable
speed compressors.
Introduction BD1.4F
Micro DC compressor.
Introduction of DLX and
NLU compressors.

N-Series F-Series S-Series G-Series

Introduction of the XV compressor

- opening a new chapter in
refrigeration history.
Secop acquires ACC Fürstenfeld,
Austria.

2015

New generation of
energy-efficient propane
compressors.
New variable speed platforms
for household and light
commercial applications.

DC

BD Micro

BD

P-Housing

BD

T-Housing

DC-POWERED

Secop GmbH · Mads-Clausen-Str. 7 · 24939 Flensburg · Germany · Tel: [phone] · www.secop.com

Secop accepts no responsibility for possible errors in catalogs, brochures, and other printed material. Secop reserves the right to alter its products without notice. This also applies to products already
on order provided that such alterations can be made without subsequential changes being necessary to specifications already agreed. All trademarks in this material are the property of the respective
companies. Secop and the Secop logotype are trademarks of Secop GmbH. All rights reserved.

Produced by Secop | May 2018

DES.G.620.B2.02