ZEKS HeatSink HSH Series User manual

NOTICE
Those operating the machine or performing
maintenance should read and understand the
decals positioned on the machine and the
contents of this Technical Manual.
Ensure that this Technical Manual is not
removed permanently from the machine.
TECHNICAL MANUAL
HeatSink™
Cycling Refrigerated
Compressed Air Dryers
H
S
H M
ode
l
s,
1
0
-12
5
SC
FM
ZEKS Compressed Air Solutions
1302 Goshen Parkway
West Chester, PA 19380
Phone: [phone]
800-888-2323
Fax: [phone]
Web: www.zeks.com
Form: ZEKS HSH 10-125 Sept. 2013

CONTENTS
1. GENERAL INFORMATION
1.1 Functional description 3
1.2 Safe use of the dryer 3
2. INSTALLATION
2.1 Acceptance, Unpacking and Handling 4
2.2 Installation site 4
2.3 Installation 4
3. START UP
3.1 Control panel 5
3.1.1 Keys function 6
3.1.2 Condensate discharge
parameters programming 6
3.1.3 Display Indications 7
3.1.4 Remote signalling alarm 7
3.2 Before start up 8
3.3 Start up 8
4. MAINTENANCE, TROUBLESHOOTING
AND DISMANTLING
4.1 Maintenance 8
4.2 Troubleshooting 9
4.3 Decommissioning 11
ATTACHMENTS TO THIS MANUAL
Flow Diagram – 10HSH through 125HSH
Wiring Diagrams
10HSH through 50HSH
75HSH through 125HSH
100HSH through 125HSH - 230 Volt
Compressor Wiring
Technical Specifications
Outline Dimensions
Spare Parts List

2
INTRODUCTION
This manual is an integral part of the dryer you have bought, and must remain with the machine even if resold.
It is highly recommended that only qualified personnel be responsible for installation, maintenance and/or control of the dryer and
that they will fully comply with the contents of this manual as well as the prevention and safety rules in force in the country where the
system will be used.
If you have problems with your dryer, please contact your local authorized ZEKS distributor.
Please note that the use of original spare parts ensures efficiency and long operating life for the dryer.
Due to continuous product improvement, ZEKS reserves the right to modify the specifications contained in this manual without
giving previous notice.
SYMBOLS AND LABELS USED IN THIS MANUAL
WARRANTY
ZEKS Compressed Air Solutions (ZEKS) warrants that the equipment manufactured by it and delivered hereunder will be free of
defects in material and workmanship for a period of twelve months from the date of placing the equipment in operation or eighteen
months from the date of shipment from the factory, whichever shall first occur. The Purchaser shall be obligated to promptly report any
failure to conform to this warranty, in writing to ZEKS in said period, whereupon ZEKS shall, at its option, correct such nonconformity,
by suitable repair to such equipment or, furnish a replacement part F.O.B. point of shipment, provided the Purchaser has stored,
installed, maintained and operated such equipment in accordance with good industry practices and has complied with specific
recommendations of ZEKS. Accessories or equipment furnished by ZEKS, but manufactured by others, shall carry whatever warranty
the manufacturers have conveyed to ZEKS and which can be passed on to the Purchaser. ZEKS shall not be liable for any repairs,
replacements, or adjustments to the equipment or any costs of labor performed by the Purchaser or others without ZEKS's prior written
approval.
The effects of corrosion, erosion and normal wear and tear are specifically excluded. Performance warranties are limited to those
specifically stated within the ZEKS proposal. Unless responsibility for meeting such performance warranties are limited to specified
tests, the ZEKS obligation shall be to correct in the manner and for the period of time provided above.
ZEKS MAKES NO OTHER WARRANTY OR REPRESENTATION OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED,
EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, ARE HERBY DISCLAIMED.
Correction by ZEKS of nonconformities whether patent or latent, in the manner and for the period of time provided above,
shall constitute fulfillment of all liabilities of ZEKS for such nonconformities whether based on contract, warranty negligence,
indemnity, strict liability or otherwise with respect to or arising out of such Equipment.
The Purchaser shall not operate Equipment which is considered to be defective, without first notifying ZEKS in writing of its
intention to do so. Any such use of Equipment will be at Purchaser's sole risk and liability.
Note that this is ZEKS Compressed Air Solutions’ standard warranty. Any warranty in force at the time of purchase of the
equipment or negotiated as part of the purchase order may take precedence over this warranty.
A
ttention: Before performing any maintenance
operation on this machine, do not forget to
disconnect the electric supply, to completely
discharge air pressure, and to refer to the
Operators manual
Pay particular attention to the risk of moving parts
Installation, maintenance, and/o
r
control
operations preceded by these symbols must be
performed exclusively by qualified personnel
*.
Pay particular attention to the risk of electric
shock.
Read the Operators manual before attempting to
start up the machine o
r
to perform any service
operation on the dryer.
Pay particular attention to components o
r
systems under pressure.
Pay particular attention to the indications
preceded by these symbols. Pay particular attention to hot surfaces.

3
1. GENERAL INFORMATION
1.1 FUNCTIONAL DESCRIPTION
ZEKS refrigerated air dryers remove moisture from compressed air. Moisture is detrimental to pneumatically operated
appliances, controls, instruments, machinery and tools.
Hot compressed air enters the patented aluminum heat exchanger where it is cooled down to the dew point temperature in
two different stages: In the first stage, the precooler/reheater makes use of the colder compressed air exiting counterflow from
the condensate separator to cool the inlet air. In the second stage, the compressed air temperature is further reduced as it
passes through the refrigerant-to-air and glycol chiller. During these two stages almost all the oil and water vapor contained in
the compressed air are condensed to liquid and successively separated from it in the condensate separator, then drained out by
the automatic drain. The cold compressed air then re-enters the precooler/reheater where it is heated before exiting the dryer
for use.
When operating at partial loads, the dryer uses the energy previously stored in the gycol circuit, shuts down the compressor
and substantially saves energy and costs.
This dryer can be easily installed into various pneumatic systems in which dry air is required or desired. Please refer to Start
Up chapter for complete operating details.
The dryer comes provided with all the control, safety and adjustment devices, therefore no auxiliary devices are
needed.
Improper grounding can result in electrical shock and can cause severe injury or death.
This product must be connected to a grounded, dedicated service, permanent wiring system .
All grounding must be performed by a qualified electrician and comply with national and local electrical codes.
In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an alternate, lower
resistence, route for the electrical current.
Ground must be established with a bare grounding wire sized according to the voltage and minimum branch circuit
requirements.
Ensure good bare metal contact at all grounding connection points, and ensure all connections are clean and tight.
Check grounding connections after initial installation and periodically thereafter to ensure good contact and
continuity has been maintained.
Check with a qualified electrician or service technician if the grounding instructions are not completely understood, or
if in doubt as to whether the product is properly grounded.
1.2 USE OF THE MACHINE IN SAFE CONDITIONS
Because an air dryer is pressurized and contains rotating parts, the same precautions should be observed as with any
piece of machinery of this type where carelessness in operation or maintenance could be hazardous to personnel. In
addition to obvious safety rules that should be followed with this type of machinery, safety precautions as listed below
must be observed.
1. Only qualified personnel shall be permitted to adjust, perform maintenance or repair this air dryer.
2. Read all instructions completely before operating unit.
3. Pull main electrical disconnect switch and disconnect any separate control lines, if used, before
attempting to work or perform maintenance on the unit.
4. Do not attempt to service any part while machine is in an operational mode.
5. Do not attempt to remove any parts without first relieving the entire air system of pressure.
6. Do not attempt to remove any part of the refrigeration system without removing and containing
refrigerant in accordance with the EPA and local regulations.
7. Remove any trace of spilled surface fluids before connecting the dryer to electrical power.
8. Do not operate the dryer at pressures in excess of its rating.
9. Do not operate the dryer without guards, shields and screen in place.
10. Inspect unit daily to observe and correct any unsafe operating conditions.

4
2. INSTALLATION
2.1 ACCEPTANCE, UNPACKING AND HANDLING
Upon receiving your ZEKS air dryer, please inspect the unit closely. If rough handling is detected, please note it on your
delivery receipt, especially if the dryer will not be uncrated immediately. Obtaining the delivery person's signed agreement
to any noted damages will facilitate any insurance claims by the customer.
It is mandatory to always keep the dryer in a vertical position, as indicated by the symbols present on the packaging. For
handling, use devices having sufficient capacity for the weight of the machine.
Remove the packaging after having positioned the dryer in the installation site. Dispose the various packaging materials in
compliance with the relevant rules locally in force.
If not in use, the dryer can be stored in its packaging in a dust-free and protected site between 32°F (0°C) and 120°F
(50°C), and a specific humidity not exceeding 90%. Should the stocking time exceed 12 months, please contact your local
ZEKS authorized distributor.
Under no circumstances should any person attempt to lift heavy objects without proper lifting equipment (i.e., crane, hoist,
slings or fork truck). Lifting any unit without proper lifting equipment, may cause serious injury. Use fork lift channels
where provided.
2.2 INSTALLATION SITE
While preparing a proper site for the installation of the dryer, please take into account the following
requirements
The machine must be protected from atmospheric agents and not directly exposed to sun light.
A seating base that is flat and capable of holding the weight of the machine.
Ambient temperature complying with the nominal data of the dryer.
The dryer should be located in a clean area, without forced air draft that can affect the fan control
system.
Make sure to leave sufficient clearance (20 inches, 500 mm) around the dryer to allow adequate
cooling of the machine and for maintenance and/or control operations.
The incoming air must be free of smoke or flammable vapors which could lead to explosion or fire risks.
2.3 INSTALLATION
Before attempting any installation operation, make sure that
No parts of the air system are under pressure.
No parts of the system are electrically powered.
Tubing to be connected to the dryer are free of impurities.
All interconnecting piping has been tightened.
After having verified the points listed above, you can proceed to the installation of the machine.
1. Connect the dryer to the compressed air lines. If not already existing, we suggest installation of a by-
pass to allow the machine to be isolated from the plant to facilitate maintenance operations.
2. Perform the electrical connection in accordance with any local laws and regulations after reviewing
the dryer electrical specifications and wiring diagram.
3. Check the condensate drainage assembly, and connect the flexible drain hose to the draining line,
keeping in mind that the condensate that’s separated by the dryer may contain oil. In order to
dispose of it in compliance with local rules and regulations, we suggest installation of an
oil/water separator having adequate capacity.
4. Power up the dryer after having checked that the nominal voltage and line frequency are constant
and matching the nominal values of the machine. The user must provide the installation with an
adequate line protection and a ground terminal complying with the electrical rules locally in
force.
In order to optimise use of the dryer, we suggest it be placed in a way that positions all the machine controls
within easy view and access.
A suitably sized prefilter must be installed before the dryer. Failure to install and maintain a proper
prefilter will void the dryer warranty. The rating for this filter must be at least 10 micron.

5
3. START UP
Ensure that the dryer is by−passed, or there is no load on the cooler. Switch on the main electrical isolation switch (if present). The
control panel will show the message OFF, indicating that the line and control voltages are available.
Start sequence
The dryer will initially start by pressing and holding the ON/OFF button for 1 second. The start sequence will progress only if there are no
active alarms. The compressor motor will start AFTER 120 SECONDS. The fan motor will start simultaneously with the compressor.
Stop sequence
The dryer can be stopped locally from the control panel. After having pressed the ON/OFF switch for 1 second, the compressor and the
fan motor will continue running for an additional 10 seconds in order to re-balance the internal pressures. The dryer can also be stopped
due to an alarm or energy saving condition (ESA or ES2). Any alarm will de−energize the compressor though the fan motor may still be
running , it depends on the type of alarm (see Display indications chapter). If the shutdown is due to an alarm, a message will blink on
display indicating the reason for the shutdown. Energy saving condition (ESA or ES2) occurs when the dew point stands below the set
value for a long time in order to save energy and avoid heat exchanger freezing. This situation can happen when ambient temperature
is low and there is no compressed air load.
Energy Saving System
A patented 3-layer (air / glycol / freon) heat exchanger allows the dryer to utilize the full power of the refrigeration system. Maximizing
the efficiency by storing the surplus energy in the glycol. The result is that at partial load the microprocessor can swich off the
refrigerant system for significant periods of time while the glycol circulation system (always running) ensures a constant dew point.
Under standard load conditions, the refrigerant circuit is turned on 100% of the time. No load conditions result in about 5% usage only.
3.1 CONTROL PANEL
The dryers are provided with an electronic control system. All adjustments and resets can be performed by means of the digital
panel located on the front of the dryer.
The control panel is composed of 5 keys (ON/OFF, TEST, SET, DOWN and UP) and a 3 digit display, with three signalling LEDs
indicated by icons (PIC 1)
PIC. 1
DISPLAY VISUALIZATION AND SIGNALING LEDS
*Not used with Zero Loss Drain Option
DISPLAY DESCRIPTION
the unit is ON with low load
the unit is ON with normal load
the unit is ON with normal-high load
the unit is ON with high load
LED STATUS DESCRIPTION
ON Compressor energized
Blinking Programming mode activated
ON Condensate drain energized*
Blinking
ON Speed of the fan = 100%
Blinking Speed of the fan < 100%
OFF Fan not running

6
3.1.1 KEYS FUNCTION
TEST: When pushed for 3 sec. during normal operation, it activates the condensate drain.
If pushed while the display shows Energy saving values, resets the counter.
SET: When pushed and released during normal operation, it displays the dew point set value (decimal).
When pushed for 10 seconds, it allows to enter the C8 and C9 condensate drain parameters programming menu (see
relevant table).
When pushed after having set new configuration values, it stores the applied modifications.
DOWN: When pushed while setting the drain set point, it decreases the displayed value of one unit per second, during the
first 10 seconds, then one unit every 0.1 sec.
When pushed for 10 seconds during normal operation, it starts an automatic test cycle of the controller.
UP: When pushed while setting the drain set point, it increases the displayed value of one unit per second, during the first
10 seconds, then one unit every 0.1 sec.
ON / OFF: Pushed, it activates or deactivates the dryer. When the dryer is deactivated, the display shows OFF.
SET+DOWN: When pushed simultaneously for 1 second, the dislay shows in sequence the the Energy Saving value of the
last cycle (iSt) and the value of the last 100 hours (tot). The Energy Saving value is the percentage of time in which the
dryer is in ESA/ES2 mode.
NOTE: when the controller is in the OFF position, some parts of the dryer may still be energized. Therefore, for
safety purposes, disconnect the electrical power before performing any maintenance operation on the dryer.
3.1.2 CONDENSATE DISCHARGE PARAMETERS PROGRAMMING
Push the SET key for 10 seconds to enter the parameters configuration menu: the display will show in
sequence the set point value, the code of the first modifiable parameter (C8) and its value).
Only if strictly necessary, use the UP and/or DOWN keys to change the displayed parameter value.
Press the SET key to store the previously changed parameter value or to browse the parameters without
changing them.
15 seconds after the last performed operation, the controller will return automatically to the normal
operation mode.
PARAMETER DESCRIPTION RANGE DEFAULT SET VALUE
C8 Delay between condensate
discharges 1 - 999 (min) 1
C9 Time required for condensate
discharge 1 - 999 (sec)
1
NOTE: Changes entered for timing values will be effective only after exiting the programming, while changes to other
variables will be immediately effective.
Please remember that changes to the configuration parameters of the machine could negatively affect its efficiency. Thus,
changes must be performed by a person familiar with the operation of the dryer.
WARNING FOR USER:
IT’S FORBIDDEN TO ATTEMPT TO MODIFY THE OTHER CONFIGURATION PARAMETERS OF THE ELECTRONIC
CONTROLLER WITHOUT AUTHORIZATION AND COLLABORATION WITH AN AUTHORIZED ZEKS DISTRIBUTOR.

7
3.1.3 DISPLAY INDICATIONS
The controller is capable of recognizing certain types of anomalies in the drying circuit. In such cases, a message will blink on the
display, alternated to the current dew point value.
MESSAGE
(BLINKING) CAUSE OUTPUTS ACTIONS
HtA High dew point value
(delayed alarm) Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Drain cycle standard
Resettable by switching off the
dryer.
If problem persists call your local
ZEKS distributor.
Ht2 Very high dew point value
(immediate alarm)
PF1
PF2 Interruption or short circuit on the PTC probe input line
Alarm output ON
Refrig. Compressor output OFF
Fan output OFF
Drain cycle standard
Resettable by switching off the
dryer. May require replacing the
faulty probe.
If problem persists call your local
ZEKS distributor.
ESA The automatic Energy saving
mode activated due to low load
Alarm output OFF
Refrig. Compressor output OFF
Fan output OFF
Drain cycle standard
No action necessary.
Automatic Reset
ES2
ASt Activated after repeated alarms
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Drain cycle standard
Call your local ZEKS distributor.
PCd Glycol circuit malfunction
Alarm output ON
Refrig. Compressor output ON
Fan output ON
Drain cycle standard
Resettable by switching off the
dryer. See troubleshooting section.
If problem persists call your local
ZEKS distributor.
Cnd High compressor output
temperature
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Drain cycle standard
No action necessary.
Automatic Reset
Note: PF1 has priority on all other messages.
3.1.4 REMOTE SIGNALING ALARM
The dryer control board is equipped with a terminal block for a remote alarm signal.
Proceed as follows to activate a remote alarm output:
1. Disconnect the dryer from electrical power supply, remove cover and left side panel.
2. Connect the alarm circuit to the terminal block (See PIC.2).
3. Replace cover, left side panel and reconnect power.
Alarm Output electric features:
12V DC - 40mA on alarm,
0V on normal conditions.
PIC.2
Activation of the above function is at the User’s discretion. The User will purchase all necessary
installation material. Any operation which needs access to the dryer must be carried out by qualified
personnel.

8
3.2 BEFORE START UP
Before starting the machine, make sure that all operating parameters correspond to the nominal data.
The dryer is supplied already tested and preset for normal operation, and it doesn’t require any calibration.
Nevertheless, it’s necessary to check the operating performances during the first working hours.
3.3 START UP
The operations specified below must be performed after the first start up and at each start up after a
prolonged inactive period of time due to maintenance operations, or for any other reason.
1. Make sure that all instructions contained in chapters INSTALLATION SITE and INSTALLATION
have been observed.
2. Ensure dryer by-pass is open and air inlet/outlet valves closed. (if existing).
3. Ensure there is no glycol spillage and clean carefully (if any).
4. Activate power supply and press the ON/OFF switch on the control panel for at least 1 second.
(note there is a 2 minute delay before the dryer will start after the dryer is turned on).
5. Wait 5 to 10 minutes until machine has achieved its standard operating parameters.
6. Slowly open the air outlet valve and successively open the air inlet valve.
7. If existent, close the air by-pass valve.
8. Check if the condensate drain is working properly.
9. Check if all connecting pipes are properly tightened and fixed.
Before disconnecting the dryer from electrical power supply, use ON/OFF button on controller to
stop the dryer. Otherwise wait 10 minutes before switching the dryer on again, in order to allow
freon pressure to rebalance.
4. MAINTENANCE, TROUBLESHOOTING AND DECOMMISSIONING
4.1 MAINTENANCE
Before attempting any maintenance operation, make sure that:
1. No parts of the system are under pressure.
2. No parts of the system are electrically powered.
ÎWEEKLY OR EVERY 40 HOURS OF OPERATION
Verify the temperature on the control panel display is acceptable.
Visually check if the condensate is drained regularly.
ÎMONTHLY OR EVERY 200 HOURS OF OPERATION
Clean the condenser with compressed air, taking care not to damage the condenser fins.
At the end of the above mentioned operations, check if the dryer is working properly.
Check the condition of any filters installed with the dryer. Replace elements as needed.
ÎYEARLY OR EVERY 2000 HOURS OF OPERATION
Check if the flexible tube used for condensate drainage is damaged and replace it if necessary.
Replace the Service Unit of the Electronic drain discharge (If present).
Check if all connecting pipes are properly tightened and fixed.
Check glycol circuit.
At the end of the above mentioned operations, check if the dryer is working properly.

9
4.2 TROUBLESHOOTING
NOTE: FOLLOWING BEHAVIORS ARE NORMAL CHARACTERISTIC OF OPERATION AND NOT TROUBLES
•Display of message ESA and ES2 in case of operation without load or low load.
•A 2 minute delay for dryer to start after pressing the on/off switch.
•Temporary compressor and/or fan motor shutdown.
Troubleshooting and control and/or maintenance operations must be performed by qualified
personnel.
For maintenance of the refrigerating circuit of the machine, contact a refrigeration mechanic.
TROUBLE DISPLAY POSSIBLE CAUSE REMEDY
WATER IN THE SYSTEM
Control panel
display is
blank
No electrical power. Restore power.
Problems with wiring. Check wiring; if the trouble persists, replace it.
Problems with the electronic control board. Check the electronic control board; if the trouble persists,
replace it.
The dryer is off. Turn it on by pressing the ON/OFF switch for 1 second.
Dryer in stand-by. Wait 2 minutes after the dryer is switched on.
Compressed air inlet/outlet inverted. Check if the compressed air inlet/outlet is connected
properly.
The flow rate and/or temperature of the air
entering the dryer are higher than the
nominal values.
Restore the nominal conditions.
The ambient temperature is higher than the
nominal values. Restore the nominal conditions.
The condenser is dirty. Clean the condenser.
Condensate drain is not functioning.
Pic.3
Clean the condensate drainage system pre-filter. (Pic.3)
Replace the coil of the drainage solenoid valve if burned.
Clean or replace the drainage solenoid valve if
clogged/jammed.
Check the C8 and C9 parameters of the electronic control
board; if the trouble persists, replace it.
No loss condensate drain is not functioning.
(Optional)
Check the no loss condensate drain; if the trouble persists,
replace the service unit.
The temperature control probe is positioned
improperly or faulty. Check the probe; if the trouble persists, replace it.
Problems with cabling or with the electronic
control board.
Check the cabling and the electronic control board, if the
trouble persists, replace them.
Activation of compressor’s internal thermal
protection.
Wait one hour and check again. If the fault persists: stop
dryer and call your local ZEKS distributor.
Problems with the electrical components of
the compressor. Check the electrical components of the compressor.
Defective compressor. Replace the compressor.
The flow rate and/or temperature of the air
entering the dryer are higher than the
nominal values.
Restore the nominal conditions.
The ambient temperature is higher than the
nominal values. Restore the nominal conditions.
The condenser is dirty. Clean the condenser.
The temperature control probe is positioned
improperly or faulty. Check the probe; if the trouble persists, replace it.
Fan pressure switch defective or burned out
(if present). Turn off the dryer and call your local ZEKS distributor.
High pressure switch defective or burned out
(if present). Turn off the dryer and call your local ZEKS distributor.
Gas leakage in the refrigerating circuit. Turn off the dryer and call your local ZEKS distributor.
Defective fan. Replace the fan.
Protection fuse burned out (if present). Replace the fuse.

10
TROUBLE DISPLAY POSSIBLE CAUSE REMEDY
WATER IN THE SYSTEM
Gas leakage in the refrigerating circuit without
load. Turn off the dryer and call your local ZEKS distributor.
The temperature control probe is positioned
improperly or faulty. Check the probe; if the trouble persists, replace it.
Series of alarms very close to each other. Call your local ZEKS distributor.
The flow rate and/or temperature of the air
entering the dryer are higher than the nominal
values.
Restore the nominal conditions.
The ambient temperature is higher than the
nominal values. Restore the nominal conditions.
The condenser is dirty. Clean the condenser.
Fan pressure switch defective or burned out
(if present). Turn off the dryer and call your local ZEKS distributor.
Gas leakage in the refrigeration circuit. Turn off the dryer and call your local ZEKS distributor.
Defective fan. Replace the fan.
Protection fuse burned out (if present). Replace the fuse.
LOW PRESSURE IN THE LINE
Ice formation in the evaporator.
Check the probe; if the trouble persists, replace it.
Check the electronic control board; if the trouble persists,
replace it.
Contact ZEKS to check the gas charge.
Clog.
Check if the compressed air inlet/outlet is connected
properly.
Check for air line obstructions..
Check if any valves are closed.
Check the condition of filters.
Air flows continuously through the condensate
drainage. Pic. 3
Drainage solenoid valve jammed, clean or replace it.
Verify the condensate drainage times set on the electronic
control board (C8 and C9).
Check the signal from the control board: if it is continuous,
replace the control board.
Air flows continuously through the Zero Drain
condensate drainage. (Optional)
Check the no loss condensate drain; if the trouble persists,
replace it.
Problems with circulator wiring. Check wiring.
Glycol circulator defective. Replace circulator.
Glycol leakage. Check glycol circuit and connections, if necessary replace
flexible tubes and/or refill glycol tank to correct level.
IMPORTANT:
The temperature control probe is extremely delicate. Do not remove the probe from its position. If you
have a problem with the probe, please contact your local ZEKS distributor.

11
4.3 DECOMMISSIONING
If necessary, decommission the dryer and the relevant packaging in compliance with the
local rules and regulations.
Pay particular attention to the refrigerant, as it contains part of the refrigeration compressor
lubricating oil. Always contact a waste disposal and recycling facility.
Pic.3
Condensate drain

12
Flow Diagram
HeatSink HSH Dryers 10-125 SCFM