MASTER Q Q-DRY11 User manual

[e-mail] 1300 696 199 masterq.com.au
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MASTERQ
Refrigerant Air Dryers
Q-DRY11, Q-DRY15, Q-DRY22, Q-DRY32,
Q-DRY45, Q-DRY57, Q-DRY72, Q-DRY84,
Q-DRY107, Q-DRY138, Q-DRY171, Q-DRY200
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Instruction booklet!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Refrigerant compressed air dryers
Q-DRY11, Q-DRY15, Q-DRY22, Q-DRY32,
Q-DRY45, Q-DRY57, Q-DRY72, Q-DRY84,
Q-DRY107, Q-DRY138, Q-DRY171, Q-DRY200
Instruction booklet
Original instructions
Copyright notice
Any unauthorised use or copying of the contents or any part thereof is prohibited.
This applies in particular to trademarks, model denominations, part numbers and
drawings.
NO. 1639 6909 96/2018-03 Printed

CONTENTS
1 GENERAL SAFETY STANDARD ............................................................................. 1
1.1 DESCRIPTION OF DANGER SIGNALS ................................................................... 1
2 GENERAL DESCRIPTION ........................................................................................ 2
2.1 GENERAL VIEW ........................................................................................................ 2
2.2 AIR SYSTEM ............................................................................................................. 4
2.3 REFRIGERATION SYSTEM ...................................................................................... 5
2.4 AUTOMATIC REGULATION SYSTEM ...................................................................... 6
2.5 CONDENSATE DRAIN SYSTEM .............................................................................. 7
3 INSTALLATION ......................................................................................................... 9
3.1 DRYER ROOM .......................................................................................................... 9
3.2 EXAMPLES OF INSTALLATION .............................................................................. 10
4 OPERATING INSTRUCTIONS ................................................................................ 11
4.1 WARNING ................................................................................................................ 12
4.2 CONTROL PANEL ................................................................................................... 12
4.3 PDP CONTROLLER ................................................................................................ 13
4.4 STARTING ............................................................................................................... 15
4.5 DURING OPERATION ............................................................................................. 15
4.6 STOPPING ............................................................................................................... 16
5 DIMENSIONS AND TECHNICAL DATA ...................................................................... 17
5.1 CONNECTIONS ...................................................................................................... 17
5.2 DIMENSIONS .......................................................................................................... 18
5.3 TECHNICAL DATA ................................................................................................... 18
5.4 REFERENCE CONDITIONS ................................................................................... 19
5.5 LIMITATIONS ........................................................................................................... 19
6 TRANSPORT AND HANDLING .................................................................................. 20
7 ROUTINE MAINTENANCE ......................................................................................... 21
8 TROUBLESHOOTING ................................................................................................. 22

ADDRESSES OF ASSISTANCE CENTERS
In the event of breakdown or malfunction of the machine, switch it off and do not
tamper with it.
If repairs are needed, contact a technical assistance center approved by the
manufacturer and insist on the use of original spare parts.
Failure to comply with the above may endanger the safety of the machine.
Keep this manual with care for future consultation; the use and maintenance manual
is an integral part of the machine.
Read this manual carefully before carrying out any operations on the compressor
unit. The installation of the compressor unit and all operations involving it must be
performed in conformity with the regulations in force concerning electric plants and
personal safety.

1
1 GENERAL SAFETY STANDARD
BEFORE REMOVING THE PROTECTION DEVICES FOR ANY MAINTENANCE WORK ON
THE MACHINE, DISCONNECT THE ELECTRICAL POWER SUPPLY. MAKE SURE THAT
THERE IS NO INTERNAL RESIDUAL PRESSURE.
ALL WORK ON THIS MACHINE MUST BE CARRIED OUT BY AUTHORISED &
PROFESSIONALLY SKILLED PERSONNEL.
Note: Any tampering with the machine or alterations not approved beforehand by the
manufacturer relieve the latter of responsibility for any damage resulting from the above
actions.
1.1 DESCRIPTION OF DANGER SIGNALS

2
2 GENERAL DESCRIPTION
2.1 GENERAL VIEW
4
5
6
7
Rear View
Front View
Inside View
Inside View
17
15
9
10
11
12
13
14
16

3
Reference
Name
1
Air outlet
2
Air Inlet
3
Data plate
4
Electrical cable outlet
5
Condensate drain outlet
6
Dew point indicator
7
Dryer on/off switch
8
High pressure switch
9
Heat exchanger
10
Electrical timer drain
11
Condenser
12
Capacity
13
Motor fan
14
Refrigerant filter
15
Capillary
16
Hot gas by-pass valve
17
Refrigerant compressor
Introduction
The dryer is a chilling machine with direct expansion and dry evaporator. The air to be dried
is sent to the heat exchanger in which the water vapor present is condensed: the
condensate gathers in the separator and is discharged outside through a steam trap.

4
2.2 AIR SYSTEM
Reference
Name
4
Evaporator
5
Condensate separator
6
Condensate drain
10
Heat exchanger
11
Dew point indicator
Description
Compressed air enters heat exchanger (10) and is cooled by the outgoing, cold, dried air.
Water in the incoming air starts to condense. The air then flows through heat
exchanger/evaporator (10 & 4) where the refrigerant evaporates causing the air to be
cooled further to close to the evaporating temperature of the refrigerant. More water in the
air condenses. The cold air then flows through separator (5) where all the condensate is
separated from the air. The condensate is automatically drained in the condensate drain (6).
The cold, dried air flows through heat exchanger (10) where it is warmed up by the incoming
air to approx. 10˚C (18˚F) below the incoming air temperature. Condensation in the air net
cannot occur unless the air is cooled to below the pressure dew point indicated by the digital
dew point indicator (11).

5
2.3 REFRIGERATION SYSTEM
Reference
Name
1
Refrigerant compressor
2
Condenser
4
Evaporator
7
Capillary tube
8
filter
9
Liquid separator
12
High pressure switch
13
Hot gas by-pass valve
Description
Compressor (1) delivers hot, high-pressure refrigerant gas which flows through condenser
(2) where most of the refrigerant condenses. The liquid flows through liquid refrigerant
dryer/filter (8) to capillary tube (7). The refrigerant leaves the capillary tube at evaporating
pressure. The refrigerant enters evaporator (4) where it withdraws heat from the
compressed air by further evaporation at constant pressure. The heated refrigerant leaves
the evaporator and flows through the liquid separator (9) back to the compressor (1).

6
2.4 AUTOMATIC REGULATION SYSTEM
Reference
Name
1
Refrigerant compressor
3
Motor fan
9
Liquid separator
12
High pressure switch
13
Hot gas by-pass valve
Description
The condenser pressure must be kept as constant as possible to obtain stable operation. Fan
control switch therefore stops and starts the cooling fan (3). If, under partial or no load, the
evaporator pressure drops below a certain level, the hot gas by-pass valve (9) opens and hot,
high-pressure gas is fed to the evaporator circuit to prevent the evaporator pressure from
dropping any further.

7
2.5 CONDENSATE DRAIN SYSTEM
Description
The dryers are equipped with an electronic water drain (EWD). The condensate from the
condensate trap accumulates in a collector. On preset time intervals, the condensate is
discharged through the drain outlet. The opening time is limited to 1 second, which limits
compressed air waste to a minimum. The condensate can also be drained by pressing the
test button (1).
Control panel
Reference
Description
1
Test
2
On
3
Off
1
2
3

8
Setting：
1. Switch on the power. Note: the voltage must comply with the voltage mentioned on the coil.
2. It will start with its pre-set time setting of 0.5 min OFF and 1 sec ON time.
3. You can change the pre-set values to anything ranging from 0.5-10 sec and 0.5-5 Min.
4. To change the ON time simply rotate the black knob, the point of the arrow is the drainage
time, then the change is saved.
5. To change the OFF time simply rotate the black knob, the point of the arrow is the drainage
interval, then the change is saved.
Note:
When the test button is pressed during normal operation, it starts a manual drain test.

9
3 INSTALLATION
3.1 DRYER ROOM
EXAMPLE OF COMPRESSOR/DRYER ROOM
Reference
Description
_
• The refrigerant dryer should be installed on a level floor suitable for its weight.
_
• Install the dryer where the ambient air is as clean as possible and where the
temperature of the air will never exceed the limits. See Reference conditions
and limitations. Keep the ventilation gratings of the dryer free.
• The recommended minimum distance between the top of the unit and the
ceiling is 1.5m (58.5 in). The minimum distance between the wall and the back
of the dryer must be 1.5 m (58.5in).
• Lay out the condensate drain hose via a funnel towards a drain collector to
allow visual inspection. The hose must slope downwards.
• If the condensate drain has been fitted outside the dryer room where it may be
exposed to freezing temperatures, it must be insulated.
_
• The power cable must be connected by a qualified electrician.
• Connect dryer to the correct voltage; if necessary, check the unit data plate.
• Check that the electrical installation corresponds to local codes. The dryer must
be earthed and protected against short circuits using an automatic cut-out
device with a differential device.
• An isolating switch must be installed near the dryer.
_
• Connect the compressed air lines to the marked inlet and outlet pipes of the
dryer (see Dimension drawings). Provide an air inlet valve and outlet valve. If a
bypass pipe and valve are installed, the dryer can be serviced while it is
bypassed.

10
2.1 EXAMPLES OF INSTALLATION
This can be used when the compressor runs constantly and the cooling capacity of the dryer
is equal to the air delivery of the compressor. Under this condition the load of the dryer is
constant.
This can be used when the air demand is variable. The air demand is for short periods higher
than the compressor can deliver, the air receiver must be large enough to meet the instant
air demand.

11
Reference
Description
1
Compressor
2
Air receiver
3
Install pre-filters and post-filters
4
Provide an air inlet valve and outlet valve. If a bypass pipe and valve are installed, the
dryer and filters can be serviced while by-passing the dryer
5
Dryer
6
Main air line

12
4 OPERATING INSTRUCTIONS
4.1 WARNING
Safety precautions
The operator must apply all relevant safety precautions, including those mentioned in this
manual.
Altitude operation
Consult your supplier if operating above 3,000m (9,843 ft).
4.2 CONTROL PANEL
Description
Reference
Description
1
Digital controller, used for:
1. pressure dew point indication (main function)
2. alarms information
2
Dryer On/Off switch
1
2

13
4.3 PDP CONTROLLER
1
Alarm
2
Dryer under tension
3
Fan on
4
PDP value
5
°C or °F
ICON
MODE
FUNCTION
Alarm
OFF
N/A
ON
Fan probe failed
High/Low PDP
Refrigerant
compressor
OFF
Dryer stops working
Flash
Service required
ON
Dryer working
Fan
OFF
Fan stops working
Flash
N/A
ON
Fan working
Normal operations
Flashing Alarm
Notes
Possible
causes
Observations
Dryer is
working OK
n/a
1
2
3
4
5
6

14
Warning
icon NOT
flashing,
label P1
flashing
Fan
control
probe
failed
-Replace probe
Warning
icon NOT
flashing,
label P2
flashing
PDP
Temp
probe
failed
-Replace probe
Warning
icon NOT
flashing,
label H2
flashing
High
PDP
-Refrigerant leak
-Flow rate or
temperature
exceeding
limitations
Warning
icon NOT
flashing,
label L2
flashing
Low PDP
-Expansion valve
out of order
-Ambient
temperature
lower than limits
EE ALARM
EE alarm is shown when internal EPROM errors happens, if this warning appears, the
dryer will stop running. The error can be reset by pressing one of the four buttons on
the controller, however the controller itself may need replacing.
NOTE: in case of EE alarm please contact your technical support.
LEGEND
ICON
DESCRIPTION
ICON
DESCRIPTION
P1
Probe that controls the fan
P2
Probe that measures the
PDP
H2
High PDP
L2
Low PDP
EE
EPROM ERROR
Sn
Software number
rL
Firmware

15
4.4 STARTING
Attention
To ensure optimum operational efficiency, do not use dr yer on/off switch
repeatedly within a short time period.
Wait at least 5 minutes to start the dryer again after stopping to allow pressure
equalization.
To keep the compressed air net free of condensate, start the dryer before
starting the compressor and stop the compressor before stopping the dryer.
Procedure
Step
Action
1
If installed, close the dryer by-pass valve. See Installation proposal.
2
Press dryer on/off switch (2).
3
Open dryer air inlet valve (customer's installation).
4
Approx. 5 minutes later, open dryer air outlet valve (customer's installation).
5
Approx. 10 minutes later, the nominal dew point will be reached.
4.5 DURING OPERATION
Regularly check:
• The pressure dew point indicator (1) on the control panel. The pressure dew point will
deviate from nominal if the air inlet conditions or volume flow differ from nominal.
• That condensate is discharged via condensate outlet. The amount depends on the
operating conditions.

16
4.6 STOPPING
Attention
To ensure optimum operational efficiency, do not use dr yer on/off switch
repeatedly within a short time period.
Wait at least 5 minutes to start the dryer again after stopping to allow pressure
equalization.
To keep the compressed air net free of condensate, start the dryer before
starting the compressor and stop the compressor before stopping the dryer.
Procedure
Step
Action
1
Close the dryer inlet and outlet valve (customer’s installation).
2
Press dryer on/off switch (2), the dryer stops.
3
If provided, open the dryer by-pass valve.