WALKER FILTRATION PROSFD Series User manual

PROSFD
PROSFD
PROSFD

The product to which this manual refers must not be supplied, installed,
used, operated or serviced until the contents of the manual has been
fully read and understood by all relevant personnel.
Please complete the following information at the time of installation
found on the rating label on the upper right hand side of dryer
Model Number
Serial Number
Regulated Inlet Pressure
Filtration present with Dryer
Inlet Flow of Dryer
Supply Voltage

Contents
1Safety 5
Safety Guidelines 5
Symbols 6
2General Description 7
Function of the Dryer 7
Controller Options 7
Package Contents 8
Primary Components 9 - 10
3Technical Data 11
Environmental Conditions 11
Dimensional Specications 12
Sizing 13
4Mechanical Installation 14
Orientation 16
Conguration of the inlet /outlet ports 17
Connecting the pre-lter to the dryer 18
Connecting the optional pre-lter drain valve 18
Installing the hygrometer (DMC models only) 19
Conguring the purge orice 20
5Electrical Installation 22
PRODRY Controller power supply options 22
PRODRY Recommended power cable specications 22
LED Controller specications 23
DMC Controller specications 24
How to wire a DIN connector 25
Alarm connection details 26

6Operation 27
Background / Function of the Dryer 27
Detailed operational description - LED Controller 27
Detailed operational description - DMC Controller 27
Start-up procedure 28
Shut-down procedure 28
Operational schematics 29
7Energy Management 35
Overview 35
Developing a purge control strategy 35
Using a manual switch for purge control 35
Using a standard pressure switch for purge control 36
Using an electronic pressure switch for purge control 37
Using a hygrometer and process controller for purge control 38
Making connections between a switching device and dryer EM contact 39
8Maintenance 40
9Spares Information 41
Service kits 41 - 43
Accessory kits 44 - 45
10 Component Parts 46
11 Troubleshooting 50
12 Warranty 56
13 Declaration of Conformity 57

5
The following safety guidelines must be
strictly observed.
• Leave this manual at the place of installation of
the product.
• It is essential that only Walker Filtration or it’s appointed
agents carry out maintenance and servicing work.
Users, maintenance and servicing personnel must be familiar
with:
• Accident prevention regulations.
• Safety information (general and specic to the unit).
• Safety devices of the unit.
• Measures to be taken in case of an emergency.
• Allow only suitably trained persons to be involved with
installation, start-up, operation, servicing and maintenance
of the product.
• It is the responsibility of the installer to ensure that the
pipe work to and from the dryer is suitable, in accordance
with applicable legislation and subject to inspection and
testing prior to being put into service. All piping must be
adequately supported.
• Before carrying out any maintenance or servicing work the
unit must be taken out of operation. Users and others will
be exposed to risk if work is carried out whilst the unit is
running. This means electrical disconnection plus isolation
from the compressed air supply and full depressurisation.
• Only trained and competent persons familiar with the
electrical requirements of the unit as laid out in this
manual and electrical safety rules and regulations should
be allowed to carry out work on the electrical components
and power supply to the unit.
• When carrying out any work on the unit, use only
correctly sized appropriate tools in good condition.
• Only use original spare parts and accessories from the
manufacturer. There is no guarantee that non-original
parts have been designed and manufactured to meet
the safety and operational requirements of the unit.
Walker Filtration assume no liability for any equipment
malfunction resulting from the use of non-approved parts.
Safety
• If carrying out installation work above head height, use
suitable and safe working platforms or other means of
working access.
• Do not make any constructional changes to the product.
Any changes or modications may only be carried out by
the manufacturer, Walker Filtration.
• Any faults or defects that could affect safety must be put
right fully before using the unit.
• Used items and materials must be disposed of in the
correct manner, complying with local laws and regulations,
in particular the desiccant cartridge.
Section 1: Safety

6
Risk of Danger
Risk of High Pressure
Equipment Protected by
Double Insulation
Risk of Electric Shock
Warning
Important Note
Section 1: Safety
Figure 1.1: Definition of symbols
Manual Handling
As with all areas of the workplace, Health and Safety is of
great importance and must be given due care and attention.
While working with this equipment, manual handling
regulations must be considered and adhered to.
Full advice, support and guidance should be detailed in your
Health and Safety Policy and Manual Handling guide, please
take the time to familiarise yourself with these documents.
The Manual Handling Operations Regulations apply to a wide
range of manual handling activities, including lifting, lowering,
pushing, pulling or carrying.
We ask every person handling this product to take the
responsibility for their own Health and Safety and the Health
and Safety of others around them. If you feel there is a
signicant risk, you must take steps to either remove the risk
altogether, or reduce the risk prior to carry out the activity. If
you need further support or guidance with this, please consult
your line manager or the HR Department.
There are safe systems of work and correct procedures in
relation to manual handling, please consult these documents
available within the workplace.
We ask everyone handling this product to:
• Follow appropriate systems of work laid down
for their safety.
• Make proper use of any equipment provided for
their safety.
• Inform the company if they identify hazardous
handling activities.
• Take care to ensure that their activities do not put
others at risk.
If in doubt, please seek further advice and ensure you always
follow the correct procedures and guidance.
A 3 amp fuse should be tted as per the wiring diagram.
For more information please see our Health and
Safety manual attached.

7
Function of the Dryer
PRODRY is designed to provide a smooth, controlled and
uninterrupted delivery of dry compressed air. Wet air passes
through a pre-lter and travels down to the bottom valve
assembly. The air is then fed through the bottom of the
desiccant bed and moves through the high performance
desiccant until it becomes dry. On exit from the desiccant
cartridge, the air is passed through the outlet valve assembly.
During this process, the dryer control system cycles the process
air between the two desiccant towers. While one tower is on
stream removing water vapour, the other is being carefully
depressurised in preparation for regeneration. The desiccant
bed is regenerated by expanding a small amount of dry
process air, or purge air, through the saturated desiccant.
Purge air passes to atmosphere through the silencer, which
is tted to an exhaust valve. The tower is then repressurised,
with the control system assuring each tower is at full
operational pressure prior to changeover.
This ensures a reliable and efcient operation. The air stream is
switched and the cycle repeats on a continuous basis.
General Description
Section 2: General Description
This manual is valid for the following dryer models
PD0046
PD0056
PD0075
PD0090
PD0110
PD0150
PD0180
PD0220
PD0300
PD0360
Controller Options
RESET
Dewpoint Hold (-40)
Dryer Dewpoint -43 PDP
Hours Run 1234
Service History # 0
Figure 2.1: LED Controller
Features:
• Supplied as standard controller
• Microcontroller based design
• Available in 115V or 230VAC
• Energy Management Feature (EM)
• Alarm Outputs
Controller Options
Figure 2.2: DMC Controller
RESET
Dewpoint Hold (-40)
Dryer Dewpoint -43 PDP
Hours Run 1234
Service History # 0
Features:
• (Optional) full feature controller
• PLC based design
• 24VDC only
• Includes Hygrometer
• Energy Management Feature (EM)
• Alarm Outputs
• Selectable output dewpoint levels (-20°C, -40°C, -74°C)
• Engages Dewpoint Hold during periods of low demand
• resulting in energy savings up to 81%.

8
Controller Options
Controller Options
Package Contents
The dryer is delivered in protective packaging. Take care when transporting, loading and unloading the unit.
The package contains the following items (refer to gure 2.3):
Figure 2.3: Package contents (All dryer models)
1. Dryer unit
2. Instruction manual (including certicate of conformity)
3. Power connector
4. Purge Kit
Section 2: General Description
1
7
6
2
3
4
5
1
7
6
2
3
4
5
1
7
6
2
3
4
5
Figure 2.4: Optional Items for DMC Dryer
Instruction manual
(including certicate of conformity)
Note: All dryers come equipped with
eyebolts to facilitate removing the dryer
from it’s crate. Simplex dryers include one
eyebolt and duplex models include two.
Note: All dryers include spare orice
components to allow the dryer to be
modied from the factory 7 barg (100 psig)
pressure setting to any pressure within the
specied operating range. The internal
purge valves within models PD046 & PD056
can be modied to suit all pressure settings
whilst models PD0075 to PD0360 require
additional components (which are supplied
with the dryer).
Hygrometer Sample Block
(Installed into top valve block)
Hygrometer Pre-lter drain valve
Figure 2.5: Optional Items for DMC Dryer

9
1. Front panel
2a. LED controller
2b. DMC controller
3. Top trim cover
4. Extrusion cover
5. Top extrusion tower plug
6. Tower spring
7. Desiccant cartridge
8. Extrusion tower
9. Top manifold assembly
10. Pre-filter (Optional)
11. Downpipe
12. Exhaust silencer
13. Bottom manifold assembly
14. Dryer stand
15. Bottom extrusion tower plug
16. Tower circlip
17. Bottom trim cover
18. Hygrometer sample block*
19. Hygrometer*
* DMC models only
Figure 2.6: Primary Components (Simplex Models PD0046 - PD0180)
Section 2: General Description
9
PRODRY PD0046 - PD0360 Instruction Manual |Walker Filtration |
5
4
6
7
89
18
19
12
13
14
15
16
17
11
10
3
2a LED Models
DMC Models
1
DMC Models2b

10
Section 2: General Description
1. Front panel
2a. LED controller
2b. DMC controller
3. Top trim cover
4. Extrusion cover
5. Top extrusion tower plug
6. Tower spring
7. Desiccant cartridge
8. Extrusion link
9. Extrusion tower
10. Top manifold assembly
11. Pre-filter (Optional)
12. Downpipe
13. Exhaust silencer
14. Bottom manifold assembly
15. Bottom manifold support clip
16. Dryer stand
17. Bottom extrusion tower plug
18. Tower circlip
19. Bottom trim cover
20. Hygrometer sample block*
21. Hygrometer*
* DMC models only
Figure 2.7: Primary Components (Duplex Models PD0220 - PD0360)
10
P D PD00 6 - PD0360 nstru tion Manual |Walker Filtration |
Figure 2.7: Primary Components (Duplex Models PD0220 - PD0360)
Se ct io n 2: General Description
7
8
9
13
14
15
16
17
18
19
12
10
11
3
4
5
6
2
1
1. Front panel
2a.
2b.
LED controller
DMC controller
3. Top trim cover
4. Extrusion cover
5. Top extrusion tower plug
6. Tower spring
7. Desiccant cartridge
8. Extrusion link
9. Extrusion tower
10. Top manifold assembly
11. Pre-filter (Optional)
12. Downpipe
13. Exhaust silencer
14. Bottom manifold assembly
15. Bottom manifold support clip
16.Dryer stand
17. Bottom extrusion tower plug
18. Tower circlip
19.
20.
Bottom trim cover
Hygrometer sample block*
21.Hygrometer*
DMC Models2b
* DMC models only
20
21
DMC Models

11
Technical Data
Section 3: Technical Data
Environmental Conditions
All dryers are designed to be safe under the following conditions:
• Indoor use
• Altitude up to 2,000m
• Ambient temperature 5°C (41°F) to 50°C (122°F)
• Mains supply voltage uctuations not to exceed +/- 10% of nominal
For operation extended from the above conditions, please contact Walker Filtration.
Rated Conditions
Measurement Performance
Inlet pressure 7 barg 101.5 psig
Inlet temperature 35°C 95°F
Relative humidity of air at inlet 95%
Pressure dewpoint, standard version -40°C -40°F
Specified Limitation for Operation
Measurement Performance
Maximum inlet air pressure 13 barg 188.5 psig
Minimum inlet air pressure 4 barg 58 psig
Maximum ambient air temperature 50°C 122°F
Minimum ambient air temperature 5°C 41°F
Pressure dewpoint (LED & DMC Controller) -20°C to -74°C -4°F to -100°F
Electrical supply voltage (LED Controller) 115 VAC or 230 VAC
Electrical supply voltage (DMC Controller) 24 VDC
Excessive vibrations from external sources may cause
failure of this product.

12
Section 3: Technical Data PD0046 - PD0360
Dryer
model
Pipe
size
Inlet flow rate* Dimensions mm (inches) Weight
Kg
No. of
cartridges
Recommended
Filter model
Filter
pipe size
Nm³/hr SCFM A B C D E F
PD0046 1 77 45 655 (25.8) 380 (15) 310 (12.2) 76 (3) 50 (2) 600 (23.6) 46 2 A058XA ½
PD0056 1 94 55 735 (29) 380 (15) 310 (12.2) 76 (3) 50 (2) 700 (27.6) 51 2 A059XA ½
PD0075 1 128 75 905 (35.6) 380 (15) 310 (12.2) 76 (3) 50 (2) 850 (33.5) 62 2 A059XA ½
PD0090 1 153 90 1030 (40.5) 380 (15) 310 (12.2) 76 (3) 50 (2) 1000 (39.4) 70 2 A078XA ¾
PD0110 1 187 110 1260 (49.6) 380 (15) 325 (12.8) 76 (3) 50 (2) 700 (27.6) 85 4 A079XA ¾
PD0150 1 255 150 1595 (62.8) 380 (15) 325 (12.8) 76 (3) 50 (2) 850 (33.5) 105 4 A108XA 1
PD0180 1 306 180 1845 (72.6) 380 (15) 325 (12.8) 76 (3) 50 (2) 1000 (39.4) 122 4 A109XA 1
PD0220 1½ 374 220 1262 (49.7) 380 (15) 490 (19.3) 76 (3) 62 (2.4) 700 (27.6) 154 8 A128XA 1 ¼
PD0300 1½ 510 300 1596 (62.8) 380 (15) 490 (19.3) 76 (3) 62 (2.4) 850 (33.5) 195 8 A128XA 1 ¼
PD0360 1½ 612 360 1845 (72.6) 380 (15) 490 (19.3) 76 (3) 62 (2.4) 1000 (39.4) 225 8 A159XA 1 ½
* Stated ows are for an inlet pressure of 7 barg (100 psig) with reference to 20°C (68°F), 1 barg (abs.), 0% relative water vapour pressure. For
ow at other pressures, temperatures and dewpoints apply correction factors on page 13.
12
PRODRY PD0046 - PD0360 Instruction Manual |Walker Filtration |
Section 3: Technical Data PD0046 - PD0360
Dryer
model
Pipe
size
Inlet flow rate* Dimensions mm (inches) Weight
Kg
No. of
cartridges
Recommended
Filter model
Filter
pipe size
Nm³/h SCFM ABCDEF
17745 655 (25.8) 76 (3) 50 (2) 600 (23.6) 50 2 ½
19455 735 (29) 76 (3) 50 (2) 700 (27.6) 58 2 ½
1 128 75 905 (35.6 76 (3) 50 (2) 850 (33.5) 66 2 ½
1 153 90 1030 (40.5) 76 (3) 50 (2) 1000 (39.4) 75 2
1 187 110 1260 (49.6) 76 (3) 50 (2) 700 (27.6) 105 4
1 255 150 1595 (62.8) 76 (3) 50 (2) 850 (33.5) 130 4 1
1 306 180 1845 (72.6) 76 (3) 50 (2) 1000 (39.4) 150 4 1
1½ 374 220 1262 (49.7) 76 (3) 62 (2.4) 700 (27.6) 250 8
1½ 510 300 1596 (62.8) 76 (3) 62 (2.4) 850 (33.5) 315 8
1½ 612 360 1845 (72.6) 76 (3) 62 (2.4) 1000 (39.4) 362 8 A159XA 1 ½
A
189189
175175
Models PD0046-PD0180 Models PD0220-PD0360
C
601601
B
A
175175
F
E
D
BC
F
E
D
* Stated flows are for an inlet pressure of 7 barg (100psig) with reference to 20°C (68°F), 1 barg (abs.), 0% relative water vapour pressure. For flow at other
pressures, apply the appropriate correction factors, terms and dewpoint.
380(15) 310 (12.2)
380(15) 310 (12.2)
380(15) 310 (12.2)
380(15) 310 (12.2)
380(15) 490 (19.3)
380(15) 490 (19.3)
380(15) 490 (19.3)
380(15) 310 (12.2)
380(15) 310 (12.2)
380(15) 310 (12.2)
12
PRODRY PD0046 - PD0360 Instruction Manual |Walker Filtration |
Section 3: Technical Data PD0046 - PD0360
Dryer
model
Pipe
size
Inlet flow rate* Dimensions mm (inches) Weight
Kg
No. of
cartridges
Recommended
Filter model
Filter
pipe size
Nm³/h SCFM ABCDEF
17745 655 (25.8) 76 (3) 50 (2) 600 (23.6) 50 2 ½
19455 735 (29) 76 (3) 50 (2) 700 (27.6) 58 2 ½
1 128 75 905 (35.6 76 (3) 50 (2) 850 (33.5) 66 2 ½
1 153 90 1030 (40.5) 76 (3) 50 (2) 1000 (39.4) 75 2
1 187 110 1260 (49.6) 76 (3) 50 (2) 700 (27.6) 105 4
1 255 150 1595 (62.8) 76 (3) 50 (2) 850 (33.5) 130 4 1
1 306 180 1845 (72.6) 76 (3) 50 (2) 1000 (39.4) 150 4 1
1½ 374 220 1262 (49.7) 76 (3) 62 (2.4) 700 (27.6) 250 8
1½ 510 300 1596 (62.8) 76 (3) 62 (2.4) 850 (33.5) 315 8
1½ 612 360 1845 (72.6) 76 (3) 62 (2.4) 1000 (39.4) 362 8 A159XA 1 ½
A
189189
175175
Models PD0046-PD0180 Models PD0220-PD0360
C
601601
B
A
175175
F
E
D
BC
F
E
D
* Stated flows are for an inlet pressure of 7 barg (100psig) with reference to 20°C (68°F), 1 barg (abs.), 0% relative water vapour pressure. For flow at other
pressures, apply the appropriate correction factors, terms and dewpoint.
380(15) 310 (12.2)
380(15) 310 (12.2)
380(15) 310 (12.2)
380(15) 310 (12.2)
380(15) 490 (19.3)
380(15) 490 (19.3)
380(15) 490 (19.3)
380(15) 310 (12.2)
380(15) 310 (12.2)
380(15) 310 (12.2)

13
Technical notes
1. Pre-filtration, including a water separator is essential to maintain dryer performance.
2.
An appropriate Water Separator must be installed. If bulk water enters the adsorption dryer it can cause heat
expansion to the desiccant, substantial rise in the dryer differential pressure, lead to poor outlet dewpoint, and
cause potential dryer failure.
3. Walker Filtration recommends fitting an RXA dust filter to the outlet.
4. Call your nearest Walker Filtration sales team for further information.
Operating pressure (PCF)
barg 4 5 6 7 8 9 10 11 12 13
psig 58 72 87 100 115 130 145 160 174 189
Correction factor 0.62 0.75 0.87 1 1.12 1.25 1.37 1.5 1.62 1.75
Temperature (TCF)
Celcius °C 20 25 30 35 40 45 50
Farenheit °F 68 77 86 95 104 113 122
Correction factor 1.3 1.2 1.1 1 0.75 0.65 0.45
Pressure dewpoint (DCF)
Celcius °C -20 -30 -40 -70 -74
Farenheit °F -4 -22 -40 -94 -100
Correction factor 1.23 1.2 1 0.8 0.77
Dryer correction factors
Section 3: Technical Data PD0046 - PD0360
To correctly select the PRODRY model suitable for your application the following information is required: Minimum
Inlet Pressure, Maximum Inlet Temperature, Maximum Compressor Inlet Flow and Required Pressure Dewpoint (PDP).
Requirements Correction Factor
Maximum compressor inlet ow 56 scfm -
Actual minimum inlet pressure
to the dryer 6 barg PCF = 0.87
Maximum inlet temperature 25°C (77°F) TCF = 1.2
Pressure dewpoint (PDP) -74°C (-100°F) DCF = 0.77
Corrected dryer ow rate
Appropriate Dryer Size Dryer model is selected based on the corrected ow rate, i.e. PD0075.
Inlet ow rate
PCF x TCF x DCF
56
(0.87 x 1.2 x 0.77)
69.7 scfm
(118 Nm³/hr)
= =
PRODRY Sizing Example

14
Figure 4.1: Typical installation
C
WS X1 XA
XA
RXA
Figure 4.2: Level ground
Mechanical Installation
Section 4: Mechanical Installation
To prevent back flow into the dryer a non-return valve should be placed in-line, downstream
of the dryer. This is essential when more than one dryer is used in a single application.

15
Section 4: Mechanical Installation
Figure 4.4: Hard piped installation
Figure 4.5 Exposure to heat
Figure 4.3: Location
Max 50OC (122OF) >Max 50OC (122OF)
Max 50OC (122OF) >Max 50OC (122OF)
Max 50OC (122OF)
>Max 50OC (122OF)
Max 50OC (122OF)
>Max 50OC (122OF)
Max 50OC (122OF) >Max 50OC (122OF)
Max 50OC (122OF) >Max 50OC (122OF)

16
Section 4: Mechanical Installation
Figure 4.6: Drainage (all tubing should be secured up to the point of drain to prevent whipping during discharge)
Orientation
Figure 4.7: The PRODRY range of dryers is designed to operate in both vertical and horizontal orientation.

17
Section 4: Mechanical Installation
Re conguration of the inlet / outlet ports
PD0046 – PD0360 models
• Dryer can be recongured to interchange position of
inlet and outlet ports as per gure 4.8.
• PRODRY has two inlet ports (A and B) and two outlet
ports (C and D). Either (A or B) can be used for inlet
and (C or D) for outlet. Make sure the un-used ports are
blanked off with provided pressure plugs.
Figure 4.8: Inlet/outlet ports
A
C
B
D
Any of the two outlet ports can be used on
occasion. Please ensure flow at outlet should not
exceed specification. Please adhere to regional
regulations.
It is strongly advised to connect a non-return
valve to the outlet port of the dryer.
Only use one inlet port at any one time
Ensure original seals are in place.
Check dryer is leak-free prior to operation.
Tools required
• Adjustable spanner
• Ratchet with 17mm Hexagonal connection
(PD0046 - PD0180)
• Ratchet with 1” Hexagonal connection
(PD0220 - PD0360)

18
Section 4: Mechanical Installation
Connecting the pre-lter to the dryer
PD0046 – PD0360 models
• Attach pre-lter (purchased separately) utilising a pipe
nipple and/or pipe adapter.
• Pipe away condensate with tubing from drain outlet.
Ensure condensate is drained into an oil/water
separator.
• Fit any further ltration and/or ancillary equipment.
• Pre-lter is typically supplied with an autodrain installed
in the bowl drain port. On DMC models, this can
be replaced with a solenoid drain valve which is an
optional extra sold separately.
• It is recommended that a bypass line including XA lter
is installed, as per gure 4.1.
All tubing should be secured up to the point of
drain to prevent whipping during discharge.
Connecting the optional pre-lter drain valve
• Available on DMC models only.
• If necessary, remove existing autodrain valve from
pre-lter.
• Install pipe adapter into pre-lter drain port.
• Install optional solenoid drain valve onto pipe adapter(s)
taking care to note ow direction as indicated by arrow
etched into the side of the drain valve body.
• Pipe away condensate with tubing from drain outlet.
Ensure condensate is drained into an oil/water
separator.
All tubing should be secured up to the point of
drain to prevent whipping during discharge.
18
PRODRY PD0046 - PD0360 Instruction Manual |Walker Filtration |
•
•
•
•
•
•
s
.
All tubing should be secured up to the point of drain to
prevent whipping du ring discharge.
Figure 4.9:Conn ecting a pre- filte r
Section 4: Mechanical Installation
•
•
• .
Available on DMC models only.
• Install optional solenoid drain valve onto pipe adapter(s)
etched into the side of the drain valve body.
•
All tubing should be secured up to the point of drain to
prevent whipping du ring discharge.
Figure 4.10 : Co nn ecting filte r dr ain
Pipe away condensate with tubing from drain outlet.
Ensure condensate is drained into an oil/water separator.
Figure 4.9: Connecting a pre-filter
18
PRODRY PD0046 - PD0360 Instruction Manual |Walker Filtration |
•
•
•
•
•
•
s
.
All tubing should be secured up to the point of drain to
prevent whipping du ring discharge.
Figure 4.9:Conn ecting a pre- filte r
Section 4: Mechanical Installation
•
•
• .
Available on DMC models only.
• Install optional solenoid drain valve onto pipe adapter(s)
etched into the side of the drain valve body.
•
All tubing should be secured up to the point of drain to
prevent whipping du ring discharge.
Figure 4.10 : Co nn ecting filte r dr ain
Pipe away condensate with tubing from drain outlet.
Ensure condensate is drained into an oil/water separator.
Figure 4.10: Connecting filter drain

19
Section 4: Mechanical Installation
Installing the hygrometer (DMC models only)
PD0046 – PD0360 models
• Remove hygrometer from packaging.
• Carefully remove plastic cover from the sensor.
• Hygrometer sample block is pre-installed in the dryer’s
top manifold assembly. Remove cover from threaded
port.
• Conrm the threads on the hygrometer sample
block are clean and free from any dirt, water, cutting
lubricant, liquid thread sealant, oil and/or grease.
• Per gure 4.11, insert hygrometer into the hygrometer
sample block and turn to clockwise to tighten.
Tighten lightly with adjustable spanner.
• Fit hygrometer DIN plug to the hygrometer and tighten
screw with pozi-head screwdriver.
Hygrometer
Sample Block
Hygrometer
Hygrometer
DIN Plug
PD0046 – PD0360 models
•
Installing the hygrometer (DMC models only)
•Remove hygrometer from packaging.
•Carefully remove plastic cover from the
sensor.
•
•
•
•
Hygrometer sample block is pre-installed in the dryer’s
top manifold assembly. Remove cover from threaded
port.
Confirm the threads on the hygrometer sample block
are clean and free from any dirt, water, cutting
lubricant, liquid thread sealant, oil and/or grease.
Per figure 4.11, insert hygrometer into the hygrometer
sample block and turn to clockwise to tighten .
Tighten lightly with adjustable spanner.
Fit hygrometer DIN plug to the hygrometer and
tighten screw with pozi-head screwdriver.
Section 4: Mechanical Installation
Do not touch white sensor tube.
Open 2 full turns = 5Nl/min
Hygrometer Silencer Setting
Figure 4.11 Attaching hygrometer
Hygrometer
Sample Block
Hygrometer
Hygrometer
DIN Plug
PD0046 – PD0360 models
•
Installing the hygrometer (DMC models only)
•Remove hygrometer from packaging.
•Carefully remove plastic cover from the
sensor.
•
•
•
•
Hygrometer sample block is pre-installed in the dryer’s
top manifold assembly. Remove cover from threaded
port.
Confirm the threads on the hygrometer sample block
are clean and free from any dirt, water, cutting
lubricant, liquid thread sealant, oil and/or grease.
Per figure 4.11, insert hygrometer into the hygrometer
sample block and turn to clockwise to tighten .
Tighten lightly with adjustable spanner.
Fit hygrometer DIN plug to the hygrometer and
tighten screw with pozi-head screwdriver.
Section 4: Mechanical Installation
Do not touch white sensor tube.
Open 2 full turns = 5Nl/min
Hygrometer Silencer Setting
Figure 4.12 Hygrometer attached
Do not touch white sensor tube.
Tools required
• Adjustable spanner
• Pozi-head screwdriver

20
Section 4: Mechanical Installation
Purge Orice Size Identication
• Reference gure 4.13 and the Purge Plug Identication Table.
• Each dryer is pre-set with the correctly sized purge valve for an operating pressure of 7 barg (100 psig) at point of order.
• The lettering (A through S), located on the purge valve body, indicates the orice size selected to suit the operating pressure of
the dryer per the chart below.
• If the inlet pressure to the dryer will be different than the pre-set orice size, the purge valve can be adjusted.
• Most dryers use a single orice purge valve represented by the Blue and Green single letter references in the table below.
• Larger dryers may require a two or three hole purge valve as represented by the Red and Yellow two and three letter references.
• To select the correct orice size, locate the appropriate dryer model at the left side of the table and then the operating pressure
at the top.
• Make sure that the correct valve body (1, 2 or 3 hole) and orice disc (01, 02, 03 or 04) has been supplied with the dryer. The
discs have the number (01, 02, 03 or 04) stamped out at the top.
Every dryer is shipped with a purge orifice set up for 7 barg (100 psig) operation. The dryer will also include the necessary
purge valve components to configure the dryer to operate at any pressure from 4 barg (58 psig) to 13 barg (189 psig). For
example: A PD0150 dryer will be supplied with a single hole purge assembly with an 02 purge disc installed and indexed to
position F. Additional purge valve components will be included to allow the dryer to be configured to purge settings, CK, M,
H, D, B, A, S, P and N.
Appropriate purge plug selection is very important for function of the dryer. Failure to comply with this may affect your
warranty.
Purge Plug Identification
Operating
pressure 4 5 6 7 8 9 10 11 12 13
Dryer
PD0046 M K I H G F E E E D
PD0056 P M L K J I H G F F
PD0075 B S P M L L K I I H
PD0090 C A P P N L K J I H
PD0110 I E C A P M K K J I
PD0150 CK M G F C B A S S P
PD0180 EM CK P I G E C B A A
PD0220 AFK FN DL P K H F E D C
PD0360 EJP DIN CHM AFK AFK GP EM DL BJ AI
Disc
01
02
03
04