DINDAN 20ACU/004 User manual

ÀÒÉÒä·Â
English
Enclosure cooling unit
Model
20ACU/004
User's guide
ÀÒÉÒä·Â
English

1
Content Page
1. Over view 3-5
2. Specifications 6-7
3. Notification 8
4. Technical information 9-10
5. Installation 11-18
6. Maintenance 19
7. Fault Indication 20
8. Assembly and part number 21

Introduction
Cooling unit for control cabinet is used for diminishing internal heat by
providing cool air to the control cabinet that can protect sensitive equipment It is
specially designed to resist surrounding temperature as high as 40-50 oC and can
function well in any factories including those with intensive dust, particles and oil mist
or with high acidity.
2

3
1. Over view
20ACU/004

4
Main controller
(Hiprosent control)
Compressor
Condensor coil
Condensor fan 1
Drain pan
Temperature display
Evaporator coil
Evaporator fan
Filter
Condensor fan 2

5
HIPROSENT CONTROL (EGS035)
Control and Monitor
A1 = LED status
A2 = LED Over/Under Voltage Status
A3 = LED compressor's status
S1 = Temperature setting switch (Up)
S2 = Temperature setting switch (Down)
Cable and signal
B1 = Temperature sensor (inside cabinet)
B2 = Over heat sensor
B3 = Ice sensor
B4 = Ambient temperature sensor
220VAC
M1 = Compressor
M2 = Condenser Fan
M3 = Evaporator Fan
OP1 = Output Alarm
M1
1Ph
OP1
Display
S1
A2
A3 S2
A1
B1
B2
B3
B4
12BC7856910NO
COMM
NC
CON16
CON20
Temperature
220V 50/60Hz
Main connection
from 10A BREAKER
supply by Customer
M3
1Ph
C1
M2
1Ph

2. Specifications
6
Characteristics (under normal operating condition at ambient temp. +35oC)
Model 20ACU/004
Capacity Watt 600
Installation type panel
Input single-phase (V.) 220V+20% / -15%
frequency (Hz.) 50/60
current (A.) 1.9
Compressor hermetic type rotary
refrigerant type 134a
System operate direct expand yes
Hi-prosent ctrl1 thermostat yes
condensor thermal detector yes
anti-freeze detector yes
compressor overheat detector none
water detector none
Protection over drain protect system yes
Display thermometer (red 7 segment 19 mm.) yes
system status (2 colour LED) yes
Electrical equip. safety device 7A. slow-blow fuse
Evaporator coil face area x rows 42.5 sq.inch x 2
servo fan (r.p.m.) 2850
number of fan x cfm (0.18 inH2O) 1 x 135
Condenser coil face area x rows 78.75 sq.inch x 3
servo fan (r.p.m.) 2850
number of fan x cfm (0.2 inH2O) 2 x 158
Physical data approx.weight (kgs.) 31.5
dimension (mm.) W:384 D:177 H:619
condensate drain OD. 3/8 inch
internal casing electro-galvanize
Air filter width x lenth (mm.) 110 x 536
*under normal operating condition at ambient temp. +45oC

7
Cutting area
384 mm.(Unit width)
Cutting Area 586 mm.
654mm.(heigh)
4-Marking holes for cutting
14-3.2 Drill
22
120
100
100
100
100
100
150 210
16
19.7
Installation Plate & Templet for cutting Area
View From Outside of Cabinet
120
120
96
185
Cutting Area185 mm.
192
57 46.3
12
Ambient Air In
Cold Air Out
Warm Air
Out
Drain Tube OD. 9.5mm
384177
Return Air In

 2 

Socket plug
Air Filter Pocket
619
133
40
Overdr ain hole

3. Notification
Before, drilling, and cut. should use clean dry cloth, or the inventory doesn’t
lead the electricity, covers the equipment for protects iron dust touches the
electrical equipment while installing. (In case of machine still operate.)
Cooling unit should be installed in the good circuration area
Check vertical and horizontal level of which their error shall be allowable
within +/- 2 oin order to facililate efficient drainage
Should always install gasket between Installation plate and Cooling Unit
before hang the cooling unit on the installation plate
Installing of drain tube (Page 17)
In order to minimize water condensation, cabinet doors should be tightly closed
during operation
Circulation fan should be installed in cabinet if various equipment is densely
installed inside
In order to obtain highest performance and durablility, repair and alteration of
cooling unit should be under care of distributor
Should not adjust temperature difference more than 10oC betwee
enviromental temperature and cooling space, to prevent moisture build up on
some part in the cooling area when you open the cabinet panel
If it is necessary to set temperature lower than 25oC, it is recommended to
use precision cooling unit or contact your Professional Maker.
The equipments that are locate in the cooling air stream have to be
obstructed by the insulator to prevent water condensation
8

9
CORRECT INCORRECT
General Condition
Storage: Cooling unit should be stored at temp not exceeding 70 oC
Transportation: This type of cooling unit can't be laid down horizontally.
Installation: It shall be installed in vertical direction only
(please see figure below)
Disposal of damaged Cooling Unit
As its refrigeration system contain Refrigerant and lubricating oil for
compressor, in order to protect environment, these substances should be
disposed of properly or other under direction given by distributor.
4. Technical information
Protective equipment
Refrigeration system has been tested with high pressure device at 350 PSI.
This series of cooling unit also contains electronic circuit and sensors are
installed at significant points to monitor any defect of refrigeration cycle in order
to reduce burden of the user and to prolong use life of cooling unit at more
costeffective practice.
Note
- LED light will display green colour (continuously) to indicate condition.
- Under any abnormal condition, please see pages 20.

10
Correct installation Incorrect installation
Refrigeration Cycle
Drainage
Drainage of condensed water from cooling system shall be done by inserting
drain tube under drainpan (see page 17) and trying not to left it twisted. Make
sure, the other end of drain tube is not lower than water level in the container,
in order to avoid water reflux
Condenser
Evaporator
Compressor
Cap.tube
Filter
dryer
External
Internal
Drain tube
Drain tube Drain tube

11
5. Installation
Accessories for 20ACU/004
Items Quantity
Cooling unit 1
User's guide & Warranty card 1
Socket plug guard 1
Socket plug 1
Special holder 2
Foam gasket 1
Air filter 1
Installing plate 1
3/8'' Drain Tube ( 200 cm. ) 1
3 x 1 Sq.mm VCT power cord. 200 cm. 1
Self tapping screw 1/8'' x 3/8'' (for Installation plate) 20
Self tapping screw 1/8'' x 1/2'' 4
(for Installation Socket plug guard)
M6 x 20 mm. bolt 2
Plain washer (for M6 x 20 mm. bolt) 2
1/2” Cable clamp 2
6” Cable tie 3

12
Installation procedure
1. Align installation plate in the position to be installed.
2. Layout 14 positions for drilling and cutout along the dot line with Jigsaw
Cutting line / เส้นแสดงการตัด
2
1
3
4
5
6
7
13
14
12
11
10
9
8

3. Cover eqipments inside cabinet with clean and dry cloth,and cover with paper
boxes at position will be drilled and cutted in order to prevent metal scrapt
falling in cabinet.
4. Drill and cut the holes and area as be pointed out from installation plate.
13
Paper box

5. Chamfer the cutted edge and paint rust proff colour.
6. Put the socket plug in the position and screw it
be careful the socket plug cover must be opened downward only
14

7. Socket plug Installation
7.1 Put the cable in the socket plug and screw.
7.2 Install the socket plug guard.
8. Installation plate attachment
8.1 Install the Installation plate with 14 self tapping screws
8.2 Connect main power line with 220VAC which be connected to 10 Amp.
breaker (Main power is 1 Sq.mm.)
Beware Breaker shouldn't be shared its load with any other components.
15
ฝาครอบแหล่งจ่ายไฟ
Socket plug guard

9. Attach the foam gasket to the installation plate and fasten the special holders
on it and then hang the cooling unit on this holders, fasten another 2 screws
M6 x 20 mm. at the bottom of the cooling unit.
10. Uncover the frontal case of cooling unit then plug-in the plug.
16
M6 x 20 mm. bolt (2 unit)
Special holders
Foam gasket
Installation plate and it foam

11. Install the draining tube by the illustrature below
Beware:
Avoid dipping draing tube below than water level
which be clogged its drainage
12. Turn on breaker for operation
17
Tire with 6” CABLE TIE
Fixed with 1/2” CABLE CLAMP
Fixed with 1/2” CABLE CLAMP
3/8” Draining tube
Tank
Illustrate of drainage wiring
Water level

Air diverter installation(In the necessary case)
1. Divert air down
Turn the air diverter to blow air down as shown below the drill and fix it.
2. Divert air to left and right
Turn air diverter to left or turn air diverter to right
Drill and fix the diverter as shown below
Note: Air diverter is the additional, not appropriate with common installation
equipment.
18
Illustrate diverting the air to left Illustrate diverting the air to right

19
6. Maintenance
Maintenance of DINDAN cooling unit can be simply done by giving care to the air
filter and condensor coil not to be clogged up. The cleaning interval for the air filter
depends on how dirty it is of the area where it is installed.
In case of abnormal function, it can be noticed from LED light which is to change
in corresponding with abnormal condition of cooling unit. For more details please
see page 20.