Heldon
New refrigerants and synthetic oils (such as POE/PAG) demand a more precise operating environment than ever before. Excessive moisture and contamination levels can quickly lead to a loss of refrigeration capacity, system efficiency or even breakdown.
The Solution?
Trust in time-tested Heldon Filter Driers/Drier Cores to offer reliable, long lasting protection, for both food service and air conditioning applications, whether new installation, field replacement or retrofit.
The Filter Drier/Drier Core in a refrigeration or air conditioning system is often referred to as the system protector, because it removes harmful elements from the circulating refrigerants and lubricants before serious damage results.
2
The primary contaminants which Filter Driers/Drier Cores are expected to remove are:
1. Moisture.
2. Acids.
3. Solid contaminants such as metal filings, flux, dirt,
oxides and wax.
4. Sludges and Varnish.
Moisture or water can come from many sources:
• Improper dehydration of new equipment.
• Improper field assembly or poor service procedures.
• Refrigerant leaks.
• Wet refrigerant.
• Wet oil, Poly-ol Ester (POE) which is much more “moisture loving”
(hygroscopic) than mineral oils.
*Note that if the moisture content of the POE oil is greater than
75 PPM (parts per million), the POE reverts back to its original chemical – an alcohol and an organic acid. Alcohol reduces the Filter Drier's effectiveness with water and acid attacks the refrigeration system's internals.
A leading international compressor manufacturer’s experience with Poly-ol Ester Oil is presented in Fig. 1.
The seriousness of POE’s hygroscopic nature is depicted as the compressor with its oil, moves its way from manufacture, to rack fabrication, to field installation and finally comissioning.
For the most cost effective method of removing the harmful effects of moisture, simply choose a Heldon Filter Drier/Drier Core.
w w w . h e l d o n . c o m . a u

Heldon
Figure 1.
Moisture Level In
Oil (PPM)
300
270 PPM
237 PPM
200
100 93 PPM
75 PPM
0
Ex-Compressor
Manufacturer
156 PPM
129 PPM
Ex-Rack
Manufacturer
Filter Change At
60 Days Operating
At Jobsite
75 Days
30 PPM
20 PPM
In Operation
Acids are formed by a combination of refrigerants being heated to elevated temperatures and the presence of high moisture content in the system. This Hydrolysis forms both Hydrochloric and Hydrofluoric (inorganic) acids. Organic acids are also created from the lubricants breakdown in the presence of moisture.
Since acids attack and corrode the metals in a refrigeration system, it is crucial that they be removed as quickly as possible to minimise damage.
It is crucial to beware of the harmful effects of high discharge or condensing temperatures on refrigeration systems, as they act as the major catalyst in the production of acids. It is good trade practice to replace the Filter Drier or Core whenever a system has operated for extended periods under high operating temperatures.
Heldon Filter Driers/Cores have a critical mission to remove this acid, prolonging the life of compressors and refrigerants.
These include dirt, copper oxide scale, sludges, flux, metallic particles etc. Such contaminates can be introduced during manufacture, field assembly or service. They can damage compressor cylinder walls, bearings and cause blockages of capillary tubes or TX Valve strainers. These contaminants create the conditions necessary for the decomposition of the refrigerant/ lubricant mixture at high temperatures.
The effective removal of contaminants is difficult due to the wide range of particle sizes that can be encountered in a system.
A refrigeration system demands:
• Thorough low micron filtration to capture these particles.
• Guaranteed uniform porosity through the entire Filter Drier
Core.
• A core shaped to give maximum surface area with negligible pressure drop.
• Improved filtration, long lasting results.
A recent Air Conditioning and Refrigeration Institute (ARI) study showed that even weak acid circulating in a refrigeration system could reduce a compressor’s life from one million hours to approximately 1,000 hours.
Heldon Filter Driers/Cores offer thorough filtration with less chance of total core blockage.
w w w . h e l d o n . c o m . a u 3

4
Heldon
Even the cleanest system when subjected to unusually high discharge temperatures will suffer from lubricant breakdown. Sludge, varnish and carbon deposits are some of the by-products of this occurrence.
A refrigeration system can feature certain catalytic metals (iron
& copper) that can further contribute to the refrigerant/lubricant mixture’s breakdown.
Desiccant is the material used to filter and dry the refrigerant and oil.
The four most commonly used desiccants are:
• 3A Molecular Sieve (MS) - most effective against moisture.
• Activated Alumina (AL) - most effective against acid.
• Activated Carbon (AC) - most affective against sludges and varnish
• Silica Gel
Table 1.
Dessiccant
Molecular Sieve
Activated Alumina
Inorganic Acid (% by wt.)
6%
6%
Figure 2.
Organic Acid Capacity (% by wt.)
0.8%
5.5%
200
150
100
50
0 10 20 30 40 50 60
Moisture In R-22, mg/kg
70 80 90 100
*Source: 2002 Ashrae Refrigeration Handbook
Molecular Sieve
Activated Alumina
Silica Gel w w w . h e l d o n . c o m . a u

Heldon
Heldon’s range of Filter Driers /Drier Cores are manufactured from the desiccants 3A Molecular Sieve, Activated Alumina and Activated
Carbon. The most suitable desiccant is chosen for the Filter Drier's intended application and its location within the refrigeration system.
Heldon’s vast experience has resulted in the creation of proprietary mixtures to target the removal of system contaminants before they can do damage and cause breakdowns to the refrigeration system. Designed in conjunction with the Suction Filter Element,
Heldon delivers total filtration management solutions for the benefit of customers.
• Suction Core – 100% Molecular Sieve
Targets moisture & particulate removal from the suction line before these contaminants can reach the compressor. Ideal for commissioning purposes, these replaceable Cores feature a unique design that delivers both low pressure drop, in conjunction with high refrigerant flow rates.
• 3A Molecular Sieve (MS)
Used for maximum moisture removal, the 3A Molecular Sieve traps and removes water molecules from the circulating refrigerant and oil. Tested in accord with ARI 710-86, when installed in the Liquid Line these Filter Driers provide the drying capacity necessary to keep the moisture content of the circulating fluids below 75 parts per million (ppm). This therefore avoids the creation of acids in POE oils.
Heldon’s 3A Molecular Sieve Filter Driers/Drier Cores are suitable for the traditional refrigerants (including R717) as well as the modern refrigerants including high pressure R410A and CO
2
. 3A MS Filter Driers/Drier Cores deliver the most cost effective means of removing the harmful effects of moisture from the refrigeration system.
• 3A MS and Activated Alumina (AL) mixtures
For high performance moisture, acid and contaminant removal, Heldon provides its customers with Filter Drier Cores that contain a mixture of both 3A MS and Activated Alumina.
The Activated Alumina chemically attracts acids that may be present in the refrigeration system, locking them away so as to prolong the life of compressors, refrigerants, and oils.
Note that, high percentage mixes of AL are not recommended for long term use with POE oils, as they can strip the compressor manufacturer's oil additives from the systems lubricant.
• 3A MS, AL and Activated Carbon (AC) mixtures
Best suited for clean up after burnout and for severely contaminated systems plagued with moisture, acids, sludge/ varnish and other contaminant issues. Working in conjunction with the other desiccants present in this type of Filter Drier, the
Activated Carbon cleans the operating system of the deposits that contribute to the breakdown of refrigerant and lubricants.
When fitted, these Filter Driers/Drier Cores provide the best insurance policy available for any compressor replaced in the field.
• Suction Filter Element – Fluted Filter Type
Compressor manufacturers know that motor burnouts can be caused by system contaminants returning down the suction line. Foreign particles including copper oxides, metal and copper pieces enter the compressor and become imbedded in the motor windings themselves. As the compressor starts and stops, these windings flex and move. The particles present scrape the insulation of the motor windings leading to motor burnout, system downtime and possible stock losses.
To extend the life span of the compressor, adequate filtration is required before the suction service valve.
Specially designed for such an application, the Suction Filter
Element removes returning contaminants down to 10 microns
(Filter Beta rating = 10: ISO 4548-12). Its fluted design keeps the collected debris safely imbedded in the filter whilst its large surface area keeps pressure drop to a minimum.
Heldon Suction Filter Element provides the compressor with the particulate protection it needs to prevent breakdowns caused by a contaminated system.
Note that good trade practice dictates that the Maximum recommended pressure drop in the Suction Line Filter for commercial refrigeration (R134a) is 10.3 kPa.
w w w . h e l d o n . c o m . a u 5

Heldon
Heldon Liquid Line Filter Driers offer a high level of protection for refrigeration and air-conditioning systems. They are specifically designed to remove moisture and solid particles from the system before acids can be created to damage the compressor. Ideally suited to HFC refrigerants and POE/PAG oils, they do not strip compressor manufacturer's oil additives.
3000 Series 3001 Series
1. Solid core construction with optimised binding agent.
2. 100% 3A Molecular Sieve core.
3. Post Core non-woven fine polyester filter.
4. Solid copper sweat or zinc plated flare connections.
5. Powder coated UL approved shell rated to 4,200 kPa/610 psi.
6. Suitable for high pressure applications (R410A).
1. Uniform porosity throughout the entire core guarantees
particulate filtration and retention.
2. The most effective desiccant for moisture removal.
3. A secondary line of defence that provides thorough low
micron filtration of particles from the system.
4. Easier to install, provides longer service life.
5. Suitable for harsh environments.
6. Suited for R410A.
Manufactured in accordance with AS 2971 and UL207
Safe Working Pressure: 4,200 kPa
6 w w w . h e l d o n . c o m . a u

7/8
3/8
1/2
5/8
3/8
1/2
5/8
3/4
3/4
7/8
1/4
3/8
1/2
1/4
3/8
1/2
5/8
1/4
3/8
1/4
3/8
Conn.
Size
(Inch)
Flare
Part No.
Solder
Part No.
3000-032 3001-032S
3000-033 3001-033S
3000-052 3001-052S
3000-053 3001-053S
3000-082 3001-082S
3000-083 3001-083S
3000-084 3001-084S
3000-162 3001-162S
3000-163 3001-162S
3000-164 3001-164S
3000-165 3001-165S
3000-303 3001-303S
3000-304 3001-304S
3000-305 3001-305S
3000-306 3001-306S
3001-307S
3000-413 3001-413S
3000-414 3001-414S
3000-415 3001-415S
3000-416 3001-416S
3001-417S
64.3
26.3
41.6
58.3
23.2
35.7
43.5
64.3
67.7
67.7
78
92
92
92
78
78
78
78
92
92
Shell
Dia.
46
46
65
78
78
78
78
65
65
65
65
Liquid Capacity Table (kw)
R22
R407C R410A R134a R404A
6.1
20.8
31.1
8.6
23.0
34.9
34.4
7.7
19.0
7.9
21.7
6.5
22.1
8.2
20.2
8.5
23.1
33.2
9.2
24.5
37.3
36.7
5.8
17.7
6.4
17.2
6.6
18.7
26.7
7.2
20.1
30.3
30.1
R744
3.2
8.9
10.3
27.1
3.5
9.8
10.2
26.3
10
10
3.6
10.1
15.8
10.5
28.7
15.8
15.6
40.8
15.8
3.9
11.0
25
11.1
30.8
16.9
46.4
16.0
46.1
25
25
25
Drying Capacity Tables (kg refrigerant)
R22
R134a
R507 R404A
R407C
R410A
24°C 52°C 24°C 52°C 24°C 52°C 24°C 52°C
4.9
5 5 5.0
8 5 5 5
4.9
5 5 5.0
8 5 5 5
Drops of
Water
@24°C
160
160
9
9
15
15
15
23
23
23
23
10.6
10.6
16.9
16.9
16.9
26
26
26
26
10
10
16
16
16
25.2
25.2
25.2
25.2
16
16
25
25
25
39
39
39
39
9.6
9.6
15.4
15.4
15.4
24
24
24
24
11
11
17
17
17
27
27
27
27
9.1
9.1
14.6
14.6
14.6
23
23
23
23
500
780
780
780
780
310
310
500
500
24.7
38.1
46.4
68.5
68.5
28.0
44.4
62.2
72.2
72.2
20.2
31.1
38.2
56.0
56.0
23.2
36.4
50.9
59.1
59.1
11.0
31.0
16.8
47.6
21.3
58.4
30.9
85.6
30.9
85.6
12.7
35.5
19.9
55.6
27.1
77.9
31.4
31.4
90.4
90.4
51
51
51
51
51
77
77
77
77
77
47.4
47.4
47.4
47.4
47.4
71
71
71
71
71
55
55
55
55
55
82
82
82
82
82
52
52
52
52
52
78
78
78
78
78
81
81
81
81
81
121
121
121
121
121
50
50
50
50
50
75
75
75
75
75
55
55
55
55
55
83
83
83
83
83
47
71
71
71
47
47
47
47
71
71
1620
2430
2430
2430
1620
1620
1620
1620
2430
2430
Given in accordance with ARI 710-86 for:
Evaporator temperature; te = -15
°
C
Condensing temperature; tc = 30 ° C
Pressure drop; P = 7 kPa (1 psi)
Drying Capacity based on moisture content reduction requirements as follows:
R22, R410A; down to 60 ppm
R407C, R404a, R507; down to 30 ppm
R134a; down to 75 ppm w w w . h e l d o n . c o m . a u 7

3001 Series - Solder
Heldon
3000 Series - Flare
1/2
5/8
3/8
1/2
3/8
1/2
1/4
3/8
5/8
3/4
3/8
1/2
5/8
3/4
Conn. Size
(Inch)
1/4
3/8
1/4
3/8
1/4
Flare
Part No.
3000-032
3000-033
3000-052
3000-053
3000-082
3000-083
3000-084
3000-162
3000-163
3000-164
3000-165
3000-303
3000-304
3000-305
3000-306
3000-413
3000-414
3000-415
3000-416
Dimensions (mm)
242
250
258
264
159
169
177
185
249
257
265
271
129
145
155
163
A
110
120
119
78
78
78
78
78
78
78
78
92
92
92
92
65
65
65
65
B
46
46
65
0.550
0.580
0.750
0.790
0.825
0.895
1.235
1.290
1.345
1.370
1.865
1.885
1.935
1.965
Weight
(kg)
0.255
0.310
0.395
0.435
0.515
Solder
Part No.
3001-032S
3001-033S
3001-052S
3001-053S
3001-082S
3001-083S
3001-084S
3001-162S
3001-163S
3001-164S
3001-165S
3001-303S
3001-304S
3001-305S
3001-306S
3001-307S
3001-413S
3001-414S
3001-415S
3001-416S
3001-417S
5/8
3/8
1/2
5/8
1/2
1/4
3/8
1/2
Conn. Size
(Inch)
1/4
3/8
1/4
3/8
1/4
3/8
5/8
3/4
7/8
3/4
7/8
3/8
1/2
209
215
214
216
214
216
222
134
207
209
220
122
130
134
136
90
94
116
120
Dimensions (mm)
A B
81
85
46
46
65
65
65
65
78
78
78
78
65
78
78
78
92
92
92
78
78
92
92
0.495
0.755
0.805
0.820
0.895
1.210
1.250
1.270
Weight
(kg)
0.225
0.260
0.360
0.380
0.480
0.485
1.290
1.310
1.805
1.815
1.825
1.835
1.870
Weight kg refers to packaged weight of drier.
8 w w w . h e l d o n . c o m . a u

Heldon Bi-Flow Filter Driers offer the highest levels of protection for heat pump air-conditioning systems. They are designed to remove moisture, acids and solid particles that can lead to premature component failure and harmful chemical reactions regardless of whether the air-conditioning demand is for heating or cooling.
The Heldon Bi-Flow Filter Driers employ a new and improved valve plate assembly that ensures all particles remain trapped once they are caught by the filter regardless of the refrigerant flow direction. The new valve plate design directs the refrigerant flow through the desiccant core from the outside, inwards at all times. This provides maximum Drying and Micron Filtration for the refrigerant whilst maintaining acceptable refrigerant flow rates through the filter drier.
3040 Standard Series (Beige) have a solid core consisting of 100%
Molecular Sieve. Designed to handle all conditions, these Filter
Driers offer quick water absorption and are ideally suited to HFC refrigerants, with POE or PAG oils.
3027 Burnout Series (Yellow) have a solid core consisting of 48%
Molecular Sieve, 47% Activated Alumina and 5% Activated Carbon.
They offer quick moisture and acid absorption and are ideally suited when a small motor burnout occurs and space does not permit a full size burnout drier.
3040 Series - Solder
3027 Series
1. Solid drier core construction with an optimised binding agent.
1. Larger & faster moisture uptake per cubic capacity of
dessicant.
2. Maximum filtration without any nuisance breakdowns.
2. Pre and post core filters provide double the filtration and
less chance of a total core blockage.
3. 3040 Standard Series – 100% Molecular Sieve.
4. 3027 Burnout Series – 48% Molecular Sieve, 47% Activated
Alumina and 5% Activate Carbon.
5. Solid copper sweat or zinc plated flare connections.
6. Powder Coated shell rated at 4,200 kPa/600 psi (R410A
compatible).
7. Val ve plate employs compressor valve plate material for long life.
3. Ideal for POE oil systems, delivering the quickest moisture
removal and the reduced risk of hydrolysis. Importantly, will
not strip manufacturers oil additives.
4. Clean up after small burnout when space restrictions apply.
5. Easier to use and longer life.
6. Suitable for harsh environments and for high pressure
applications.
7. Will provide years of trouble free, system protection.
Manufactured in accordance with AS 2971, UL207
Safe Working Pressure: 4,200 kPa w w w . h e l d o n . c o m . a u 9

3040 Series - Flare 3040 Series - Solder
Heldon
1/4
3/8
1/2
3/8
1/2
5/8
Connection
(Inch)
Flare
Part No.
3040-082
3040-083
3040-084
3040-163
3040-164
3040-165
Solder
Part No.
3040-082S
3040-083S
3040-084S
3040-163S
3040-165S
3040-165S
Capacity (kW)
R22
R407C
R410A
4.1
8.0
8.9
18.9
30.0
38.5
R134a
3.7
7.4
8.0
17.0
27.0
34.6
Drying Capacity
(kg refrigerant)
R22
11.5
11.5
11.5
15.5
15.5
15.5
R407C
R410A
11.5
11.5
11.5
15.5
15.5
15.5
R134a
12.5
12.5
12.5
16.3
16.3
16.3
A
145
155
163
169
177
185
Dimensions (mm)
B
116
120
122
134
136
134
C
65
65
65
78
78
78
Flare
Weight
(kg)
Solder
Weight
(kg)
0.515
0.550
0.580
0.790
0.825
0.895
0.480
0.485
0.495
0.805
0.820
0.895
3027 Series
Connection
(Inch)
Part No.
1/4
3/8
1/2
3/8
1/2
3027-082
3027-083
3027-084
3027-163
3027-164
Capacity (kW)
R22
R407C
R410A
R134a
4.2
8.3
9.1
19.0
30.0
3.8
7.5
8.2
17.5
27.0
R22
7.0
7.0
7.0
13.0
13.0
Drying Capacity (kg refrigerant*)
R407C
R410A
6.3
6.3
6.3
11.8
11.8
R134a
7.4
7.4
7.4
14.0
14.0
Acid
Capacity
(g)
3.9
3.9
3.9
8.8
8.8
Dimensions (mm)
A
145
155
163
169
177
B
65
65
65
78
78
Weight
(kg)
0.515
0.550
0.580
0.790
0.825
10 w w w . h e l d o n . c o m . a u

Heldon Burnout Filter Driers offer a high level of contaminant removal from refrigeration and air-conditioning systems following a compressor motor burnout. Designed to remove moisture, acids and solid particles that can lead to the premature failure of the replacement compressor.
Employing a solid core design, Heldon Burnout Filter Driers deliver minimal pressure drop via total core utilisation. This results in quicker uptake of inorganic acids and other contaminants. The solid core itself is formed through a binding process that maximizes surface area and protects the core from acid decomposition.
Available in both standard and short lay-in lengths these models feature inlet and outlet access Schrader ports for the monitoring of pressure drop. For smaller suction pressure drop critical systems, the 3026 series is supplied with a replacement jumper tube.
Note that it is good practice to remove suction burnout driers after performing a successful acid test, in order to prevent loss of system performance and the risk of catalytic hydrolysis in POE oil systems.
3021 Series
3022 Series
3025 Series
3026 Series
1. Solid core construction with optimized binding agents
60% Molecular Sieve, 35% Activated Alumina and 5% Activated
Carbon.
2. Stainless steel mesh and a post core filter provide double
the filtration and less chance of a total core blockage.
3. Inlet and Outlet access ports.
4. Short lay in length and multi-orientation design.
5. Solid copper sweat or zinc plated flare connections.
6. Powder coated shell rated to 4,200 kPa /610 psi (R410A
compatible).
1. Larger and faster moisture and contaminant uptake per cubic inch.
2. Double the filtration and less chance of a total core blockage.
3. The ability to monitor pressure drop across the filter drier.
4. Easy of installation in tight positions.
5. Easier to use and longer life.
6. Suitable for harsh environments and most suction line
applications.
Manufactured in accordance with AS 2971
Safe Working Pressure: 4,200 kPa w w w . h e l d o n . c o m . a u 11

Burnout 3021 Series - Flare Burnout 3022 Series - Solder
Heldon
3/8
1/4
3/8
1/2
1/4
5/8
3/4
7/8
1 1/8
3/8
1/2
5/8
1/2
1 3/8
1/2
1/2
3/4
7/8
Connection
(Inch)
Flare
Part No.
Dimensions (mm)
B
-
65.5
65.5
65.5
78
-
-
78
78
78
78
78
78
-
92
92
92
-
Length
(Lay-In)
A
-
146
156
163
160
-
-
259
265
170
177
186
250
-
257
266
272
-
-
3021-082
3021-083
3021-084
3021-162
3021-163
3021-164
3021-165
3021-304
3021-305
3021-306
-
-
-
3021-414
3021-415
3021-416
-
Weight
(kg)
-
0.57
0.60
0.64
0.80
1.46
1.44
-
-
0.86
0.88
0.96
1.40
-
1.94
1.96
2.00
-
R22
R407C
4.0
6.0
6.0
10.0
10.5
18.0
22.0
26.0
31.0
13.0
15.0
20.0
17.0
31.0
25.0
26.5
29.5
30.0
R134a
3.0
3.5
3.5
5.5
5.0
12.5
14 0
16.0
20.0
5.5
6.0
9.5
10.0
20.0
14.5
16.0
17.5
18
Capacity kW
R404A
3.0
4.0
4.5
8.0
7.5
15.0
19.0
22.0
27.0
8.0
8.5
13.0
15.0
27.0
23.0
24.5
25.0
25.0
Dimensions (mm)
Solder
Part No.
134
209
215
215
225
134
134
209
220
216
214
216
222
Length
(Lay-In)
A
85
120
120
122
130
3022-033S
3022-082S
3022-083S
3022-084S
3022-162S
3022-163S
3022-164S
3022-165S
3022-304S
3022-305S
3022-306S
3022-307S
3022-309S
3022-311S
3022-414S
3022-415S
3022-416S
3022-417S
B
46
65
65
65
78
78
78
78
78
78
78
78
78
78
92
92
92
92
Weight
(kg)
0.34
0.57
0.60
0.64
0.80
1.46
1.44
1.50
1.55
0.86
0.88
0.96
1.40
1.55
1.94
1.96
2.00
2.20
• Designed for use after motor burnout or mechanical failure; for clean up of the most contaminated systems.
• Activated Alumina and Carbon removes acids and waxes.
• Stainless steel mesh and a post core non-woven fine Polyester Filter provide additional filtering for the best in system protection.
• Suitable for use in either the liquid or suction lines. Best practice is to install Burnout Filter Driers in the suction line to
protect the replacement compressor.
• With POE and PAG oils, burnout driers should be removed as soon as all contaminants are absorbed from the system. This will
reduce the risk of catalytic hydrolysis and the formation of new acids.
• Safe Working Pressure 4,200 kPa (610 psi).
• Fitted with dual access ports to measure pressure drop.
12 w w w . h e l d o n . c o m . a u

3026 Series
Jumper Tube
Connection
(Inch)
3/8
1/2
Part No.
3026-06
3026-08
Dimensions (mm)
Length
(Lay-In)
A
Dia.
B
171
179
46.5
46.5
R22
R407C
7.0
7.0
Capacity kW
R134a
4.5
4.5
R404A
5.0
5.0
Weight
(kg)
0.57
0.65
• Heldon's 3026 series of Burnout Filter Driers/Jumper Tubes are specially designed for use in systems where pressure drop is critical.
• Core composition is a combination of Molecular Sieve, Activated Alumina and Activated Carbon.
• The matched copper jumper tube replaces the Burnout Filter Drier when removed from the suction line once the system has been cleaned of contaminants.
• It is good practice tp remove the Burnout Filter Drier once clean up is complete, for all system types.
• Safe Working Pressure 3,200 kPa.
3025 Series - Solder
• Designed for a compact fit in the suction line.
• Core composition is a combination of Molecular Sieve,
Activated Alumina and Activated Carbon.
• Features dual access ports.
• Safe Working Pressure 2,500 kPa (350 psi).
Connection
(Inch)
3/8
1/2
5/8
3/4
7/8
1 1/8
Part No.
3025-403S
3025-404S
3025-405S
3025-406S
3025-407S
3025-409S
Dimensions (mm)
Length
(Lay-In)
A
Dia.
B
104
106
117
106
112
112
91
91
91
91
91
91
R22
R407C
17.0ww
17.0
23.0
23.0
25.0
27.0
Capacity kW
R134a
14.0
14.0
17.5
17.5
19.0
21.0
R404A
15.0
15.0
19.5
19.5
21.0
23.0
Weight
(kg)
0.90
0.65
0.65
0.65
0.70
0.70
w w w . h e l d o n . c o m . a u 13

14
Heldon
Our range of Replaceable Core Filter Drier Shells are designed to be used in both the liquid and suction lines of refrigeration and air-conditioning systems using fluorinated refrigerants and CO
2
.
Shells rated for Ammonia with steel connectors are available upon request.
The Replaceable Core Filter Drier Shells are made from a steel tube shell with solid copper connectors. The shells have a corrosion resistant powder coat finish, complete with aluminium, zinc plated steel or stainless steel end plate. The range covers connection sizes from 7/8” to 2-1/8”. Larger sizes for suction line duty can be made to order.
The Replaceable Filter Core Drier Shell comes with a unique filter cup that cleans the internal wall as you remove the assembly during service. The standard end plate is plated steel.
3017 Series
1. Maximum Working Pressure = 42 bar.
1. Increased operating life in low temperature application due
to corrosion protection.
2. Ideal for HP refrigerants including CO
2
.
2. Designed for use in both the liquid and suction lines of
refrigerated systems employing fluorinated refrigerants
and CO
2
.
3. Solid copper connections (7/8” through to 2-1/8”).
4. Single core through to 4 core models available.
5. Accepts a range of 48 cu. in desiccant filter cores to
specifically target the removal of system contaminants.
6. Designed for the long term usage with Pleated Suction
Filter Elements. Perfect for supermarket installations.
7. Incorporates a 100 mesh stainless steel strainer in the
internal assembly.
11. Capacities from 10 kW through to 509 kW available.
12. End plate options are aluminium, zinc plated steel or stainless steel.
3. Flexibility of application.
4. Full flow connections provide easy brazing for the installer.
5. Large range of both Refrigeration and Drying capacities
available.
6. Heldon provides a total filtration management system via
its comprehensive range of Replaceable Cores & Filters.
7. Suction filter elements capture foreign particles returning
to the compressor before they can destroy motor winding
insulation and cause burnout.
8. Provides secondary particulate filtration & retention. 8. The internal assembly end plate provides a unique filter cup
that cleans the internal wall of the shell during its removal
for service.
9. Standardised to replace other manufacturers units and cores.
10. Powder Coated Shell.
9. Creates the cleanest possible environment in which the
Filter Drier Cores can operate.
10. Drop in replacement for other common makes and will
accept most cores.
11. Suitable for the harshest environments.
12. Large range available to suit most applications.
Manufactured to AS2971, UL207 + CE
Safe Working Pressure: 4,200 kPa
Note larger connection sizes are available on request, please consult with Heldon sales for further information.
w w w . h e l d o n . c o m . a u

Heldon
Liquid Line Capacity (kW)
Conn.
Size
(Inch)
1 3/8
1 5/8
1 5/8
1 5/8
1 1/8
1 3/8
1 3/8
1 3/8
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
7/8
7/8
7/8
7/8
1 1/8
1 1/8
1 1/8
Part No.
3017-1401
3017-1402
3017-1403
3017-1404
3017-1801
3017-1802
3017-1803
3017-1804
3017-2201
3017-2202
3017-2203
3017-2204
3017-2601
3017-2602
3017-2603
3017-2604
3017-3401
3017-3402
3017-3403
3017-3404
Cores
2
3
4
1
2
3
4
1
4
1
2
3
4
2
3
4
1
1
2
3
R404A
124.7
171.5
174.1
183.1
192.6
199.8
216.7
217.2
225.1
298.2
307.2
268.1
311.1
89.7
83.1
83.1
83.1
128.6
128.2
124.7
R134a
173.3
236.8
241.5
253.4
263.9
273.7
298.7
299.3
309.4
399.6
419.9
367.1
429.8
124.2
116.0
116.0
116.0
178.8
178.1
173.3
R507
120.8
166.1
168.7
177.4
186.6
193.6
210.0
210.4
218.1
289.2
297.7
259.8
301.4
86.9
80.5
80.5
80.5
124.5
124.0
120.8
R410A
184.2
253.5
257.3
270.5
284.9
295.7
320.5
321.1
332.8
442.2
454.6
396.7
459.9
132.7
122.8
122.8
122.8
190.0
189.1
184.2
183.9
179.1
179.1
245.6
249.8
262.4
275.1
285.4
310.2
310.8
321.8
422.6
438.4
382.9
445.7
R22
R407C
128.6
119.5
119.5
119.5
184.7
30.6
19.6
28.8
27.0
21.9
20.7
24.9
28.6
35.3
20.1
28.2
25.5
34.9
12.5
12.5
14.1
16.9
16.7
18.5
18.2
19.0
21.4
23.2
15.1
14.1
14.1
16.9
16.0
21.9
20.2
26.7
15.5
21.4
19.1
26.4
-20°C
R134a
R507
9.6
9.6
10.9
13.0
12.9
Suction Line Refrigeration Capacity (kW)
Evaporating Temperature te °C
-20°C
R404A
4.4°C
R22
73.7
85.7
90.5
57.0
54.8
53.8
64.8
60.1
85.7
81.1
105.0
58.2
83.8
76.5
103.8
4.4°C
R407C
R410A
36.7
37.0
41.6
49.9
49.2
90.5
57.0
85.7
81.1
64.8
60.1
73.7
85.7
105.0
58.2
83.8
76.5
103.8
36.7
37.0
41.6
49.9
49.2
54.8
53.8
Liquid Line Capacity (kW) is based upon:
Evaporating temperature of te = -15.0
o C
Condensing temperature of tc = +30.0
o C
Pressure Drop = 7 kPa
Suction line capacity (kW) is based upon:
Evaporating temperature of te = 4.4
o C
Condensing temperature of tc = +32.2
o C
For other sizes and special pressures please contact
Heldon.
Cover Plate & Gasket
Spring
Retaining Plate & Nut
Inner Rod Assembly
Spacer Plate
Inner Rod Assembly
New Filter Cup
(with sealing assembly) w w w . h e l d o n . c o m . a u 15

Heldon
Part No.
3017-1401
3017-1402
3017-1403
3017-1404
3017-1801
3017-1802
3017-1803
3017-1804
3017-2201
3017-2202
3017-2203
3017-2204
3017-2601
3017-2602
3017-2603
3017-2604
3017-3401
3017-3402
3017-3403
3017-3404
Core
1 Core Shell
2 Core Shell
3 Core Shell
4 Core Shell
1 Core Shell
2 Core Shell
3 Core Shell
4 Core Shell
1 Core Shell
2 Core Shell
3 Core Shell
4 Core Shell
1 Core Shell
2 Core Shell
3 Core Shell
4 Core Shell
1 Core Shell
2 Core Shell
3 Core Shell
4 Core Shell
Conn. Size A
(Inch)
7/8
7/8
7/8
7/8
1 1/8
1 1/8
1 1/8
1 3/8
1 5/8
1 5/8
1 5/8
1 1/8
1 3/8
1 3/8
1 3/8
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
567
140
280
424
567
140
280
424
567
140
280
424
567
569
140
280
424
B
Dimensions (mm)
C
142
282
426
269
409
553
696
269
409
553
696
269
409
553
696
269
409
553
696
269
409
553
696
8.7
8.7
4.6
6.0
7.4
4.6
6.0
7.4
8.7
4.6
6.0
7.4
8.7
Weight
(kg)
4.6
6.0
7.4
8.7
4.6
6.0
7.4
3017 Series
Part No.
720-3017-01
720-3017-02
720-3017-03
720-3017-04
3010-ALUM-ASSY
3053-1C
3060-76C
725-3017-1
Description
ONE CORE - INTERNAL ASSEMBLIES incl gasket and spring
TWO CORE - INTERNAL incl gasket and spring
THREE CORE- INTERNAL incl gasket and spring
FOUR CORE - INTERNAL incl gasket and spring
ALUMINUM END PLATE C/W 1/4" NPT PLUG and 8 bolts to suit
GASKET SET - Suit demountable end plate & internal core seating
DRIER BRACKET - Demountable Shell
Steel End Plate
3010-ALUM - ASSY
16
3053 Series 720 Series w w w . h e l d o n . c o m . a u
3060 Series

Heldon
Heldon offer a complete range of 48 cu. in Drier Cores to suit many brands of Replaceable Core Drier Shells. Heldon Drier Cores remove system contaminates and maximise the refrigeration systems performance.
Suction Core - 100% Molecular Sieve.
Targets moisture and particulate removal from the suction line before it can reach the compressor. Ideal for commissioning purposes, its unique design delivers low pressure drop with high flow rates. Uniform porosity throughout the entire filter drier core guarantees particulate filtration & retention.
Together with the Suction Filter Element, Heldon delivers a total filtration management system for its customers.
Ultra-Dry ® : 100% Molecular Sieve .
Employing a 3A Molecular Sieve to trap and remove water molecules, these cores deliver maximum moisture removal.
Suitable for traditional and modern refrigerants using mineral or synthetic oils. This includes R717 and the HP refrigerants R410A and CO
2
. Use these cores to safely remove moisture before acids can be formed.
Standard: 80% Molecular Sieve & 20% Activated Alumina.
A blend of Molecular Sieve and Activated Alumina for high performance moisture and contaminant removal. The Activated
Alumina chemically attracts acids that may be present in the system. Thorough low micron filtration effectively captures particles before they can do damage.
Suction Filter Element - Fluted Filter Type.
Foreign particles destroy compressor motor winding insulation and cause burnouts. Employing a fluted design for maximum filter surface area, particulates down to 10 Microns (Filter Beta Rating
= 10: in accordance with ISO 4548-12) are safely removed from the system. The Suction Filter delivers maximum compressor protection with the lowest possible pressure drop. By installing a
Heldon Suction Filter Element you are providing the compressor with the particulate protection it needs to prevent breakdowns caused by a contaminated system.
3050-1
3052-2
Burn-out: 48% Activated Alumina, 45% Molecular Sieves & 5%
Activated Carbon.
For clean up after burn-outs and for highly contaminated systems with moisture, acid, sludge and particulate issues. The Activated
Carbon cleans the system of deposits that contribute to the breakdown of refrigerant and oils, actively prevents contaminants from causing premature failure of the replacement compressor.
3049-1
3051-1
Part No.
3050-1
3049-1
3051-1
3050-32
3050-100
3052-2
Description
ULTRA-DRY
®
CORE
High Moisture Absorption
STANDARD CORE
Moisture & Acid Absorption
BURN-OUT CORE
Complete clean-up
SUCTION LINE CORE
Low pressure drop, high fl ow rate
HIGH CAPACITY CORE
Suit 150mm Shells
FILTER ELEMENT
Low Pressure Drop
Suitability Interchangeable with Material
Ideal for POE Oil
Not recommended for POE Oil
Not recommended for long term use particulary with POE
Oil. Replace after use.
Z-48, VS-48XH, RCW-48 & UK-48
PCK-48, 48DN, VS48H, RC-4864
& D48
PCK-48HH, 48DA, RC-4864-
HH,W-48 & VS-48SC
100% MS
80%/20% MS/AL
48%/AC/47% MS/5%/AL
Ideal for POE Oil RPE48BD 100% MS
Ideal for POE Oil H-100, VS-100H, PCK-100
RPE48BD, F48R, VS48F, PFE-48BF,
48-F
100% MS
Filter Element w w w . h e l d o n . c o m . a u 17

Heldon
Heldon
Part No.
3050-1
3049-1
Cores
1
1
24°C
83.5
73.0
R134a
R507
Drying Capacity (grams/kg of refrigerant), Water drops = grams x 20
Evaporating Temperature te o C
R404A
52°C
79.5
69.5
24°C
123.0
117.0
52°C
76.0
63.0
24°C
84.0
71.5
R407C
R410A
52°C
72.0
61.0
Dring capacity is based on the following moisture contents before and after drying:
R134a: From 1050 ppm W to 75 ppm W. If the refrigerant is to be dried to 50 ppm W, reduce the stated capacities by 15%.
R404A, R407C, R507: From 1020 ppm W to 30 ppm W.
R410A: From 1050 ppm W to 60 ppm W.
Capacities calculated in accordance with ARI 710-86.
Heldon
Part No.
3051-1
Cores
1
-30°C
46.0
R134a
R507
-20°C
39.0
4.4°C
27.0
Drying Capacity (grams/kg of refrigerant), Water drops = grams x 20
Evaporating Temperature te o C
-40°C
47.0
R404A
-20°C
31.0
4.4°C
19.0
-40°C
29.0
R22
-20°C
20.0
4.4°C
13.0
-40°C
43.0.0
R407C
R410A
-20°C
35.0
4.4°C
35.0
Drying Capacity is expressed as follows:
R22: EDP = 10 ppm W, corresponding to a dew point temperature of -50 °C
R134a EDP = 50 ppm W, corresponding to a dew point temperature of -37 °C
R404A EDP = 10 ppm W, corresponding to a dew point temperature of -40
°C
R407C EDP = 10 ppm W, corresponding to a dew point temperature of -40 °C
EDP = Equilibrium Dryness Point.
18 w w w . h e l d o n . c o m . a u

Heldon offers both the "Y" Type and In-line Strainer that allows for cleaning of the strainer element without the need to replace the whole strainer. These are suitable for refrigerants and liquids offering protection to compressors, pumps, meters, valves and similar mechanical equipment.
Installation of a strainer before any mechanical equipment will ensure trouble free service and avoid the costly shutdowns, repairs or replacement often caused by the introduction of foreign particles into the system.
The “Y” Type;
The 80 mesh filter can be removed and cleaned with solvent and compressed air. Y strainers can be installed in the horizontal or vertical position as long as the filter mesh is accessible. The Strainer can be removed for cleaning without the need to cut from the system.
In-line;
Heldon manufacture brass in-line strainers for capillary systems and feature an accessible, cleanable 100 mesh strainer.
Part No.
91-18
91-22
91-26
91-STRAINER
Connection
1 1/8 ID
1 3/8 ID
1 5/8 ID
A
(ID)
B
(mm)
C
(mm)
28.6
35.0
297
298
196
196
41.3
288 196
Filter Elements to suit Y-Strainer
D
(mm)
63.5
63.5
63.5
Mesh Size
80
80
80
91 Series
90 Series
Part No.
90-0496
90-0680
90-0896
90-1096
Connection
1/4 MSAE
3/8 MSAE
1/2 MSAE
5/8 MSAE
B
(mm)
111
126
155
150
C
(mm)
140
164
200
195
Mesh Size
100
100
100
100
Heldon
91 Series
90 Series
Manufactured in accordance with AS 2971 & AS 1677
Safe Working Pressure: 3,200 kPa (steel) & 4,200 kPa (brass)
91 Series
19 w w w . h e l d o n . c o m . a u