FRIEDHELM LOH Rittal 3370.22 Series User manual

Assembly and operating instructions
空调装配和使用说明书
3370.22X 3370.52X
3370.32X 3370.62X
3370.37X 3370.72X
3370.42X
1194.42X 1194.55X
1194.62X 1194.72X
Compact Cooling unit
Compact 机柜空调

Contents
Rittal cooling unit assembly and operating instructions page 2 of 27
EN Contents
Contents ..................................................... 2
1 Application Error! Bookmark not defined.
2 Technical data ........ Error! Bookmark not
defined.
3 Assembly ... Error! Bookmark not defined.
4 Safety notes ........... Error! Bookmark not
defined.
5 Commencing operation and control
behavior ........... Error! Bookmark not defined.
5.1 Controller control ... Error! Bookmark not
defined.
5.1.1 Operation of the controller .............. Error!
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5.1.2 Editable parameters ..... Error! Bookmark
not defined.
5.1.3 Parameter navigation ... Error! Bookmark
not defined.
5.1.4 Setting the target temperature ....... Error!
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5.1.5 Setting the temperature range ....... Error!
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5.1.6 Controller display .. Error! Bookmark not
defined.
5.1.7 Display buttons ...... Error! Bookmark not
defined.
5.1.8 Compressor: On / Off ... Error! Bookmark
not defined.
5.2 Alarm parameters .. Error! Bookmark not
defined.
5.3 Evaluating system messages ......... Error!
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5.4 Forced cooling ....... Error! Bookmark not
defined.
6 Filter mats . Error! Bookmark not defined.
7 Technical informations Error! Bookmark
not defined.
7.1.1 Operation of the cooling unit .......... Error!
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7.1.2 Condensate discharge . Error! Bookmark
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8 Handling instructions .. Error! Bookmark
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8.1 Fitting the cooling unit .. Error! Bookmark
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8.1.1 External mounting of the cooling unit
............... Error! Bookmark not defined.
8.1.2 Partial internal mounting of the cooling
unit (accessories not included) ....... Error!
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8.2 Electrical connection .... Error! Bookmark
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8.2.1 Connection data .... Error! Bookmark not
defined.
8.2.2 Overvoltage protection and power line
load ......... Error! Bookmark not defined.
9 Scope of supply and guarantee ... Error!
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9.1 Compressed air cleaning ................ Error!
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10 Storage and disposal .. Error! Bookmark
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11 Scope of supply and guaran-tee . Error!
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12 Wire plan ............................................ 13

1 Application
Rittal cooling unit assembly and operating instructions page 3 of 27
1 Application
Enclosure cooling units are designed and built to dis-
sipate heat from enclosures by cooling the air inside
the enclosure and protecting temperature sensitive
components.
2 Technical data
See nameplate
3 Assembly
The standard wall-mounted unit is suitable for exter-
nal mounting. Cut out the sections and drill according
to the drawing.
Cut the enclosed seals to the required length and at-
tach to the unit. Screw tapped pins into the blind nuts
on the rear of the unit. The unit is then to be secured
using washers and nuts
4 Safety notes
The following safety notices are to be observed in
their entirety for the correct use of the equipment:
 To prevent the enclosure with the cooling unit fit-
ted tipping over, it is essential that this be bolted
to the floor.
 A roller door is to be used to ensure problem free
opening and closing of the enclosure door.
 A transportable enclosure with built-in cooling
unit may only be produced if an additional
transport anchorage to support the cooling unit is
used.
Prior to mounting, ensure that:
 the site for the enclosure, and hence the arrange-
ment to the cooling unit, is selected so as to en-
sure good ventilation;
 the location is free from excessive dirt and mois-
ture,
 the cutout for air extraction is located in the upper
area of the enclosure;
 the mains connection ratings, as stated on the
rating plate. are available:
 the ambient temperature does not exceed +50°C;
 The packaging shows no signs of damage.
Traces of oil on damaged packaging are an indi-
cation of refrigerant loss and of leakage in the
unit system. Any damage to the packaging may
be the cause of subsequent malfunctions:
 the enclosure is sealed on an sides Con-
densation will occur if the enclosure is leaky;
 the separation of the units from one another and
from the wall should not be less than 200mm;
 air inlet and outlet are not obstructed on the in-
side of the enclosure;
 units are only fitted horizontally in the specified
position Max. deviation from the true horizontal:
2°
 condensate drainage is provided
 electrical connection and repair are carried out
only by authorized personnel
 Use only original replacement parts and acces-
sories.
 Losses from the components installed in the en-
closure must not exceed the specific refrigeration
capacity of the cooling unit itself;
 The customer may not modify the cooling unit in
any way.
5 Commencing operation and
control behavior
Following the completion of mounting and a waiting
period of approximately 30 minutes (to allow oil to col-
lect in the compressor in order to ensure lubrication
and cooling).
5.1 Controller control
Figure 1: Controller
After electrical connection the internal fan turns on
and circulates the enclosure air. This helps assure
even temperature distribution within the enclosure.
The condenser fan and compressor are controlled by
the controller. The minimum time is 3 minutes to re-
start the compressor after it has switched off. The
switching difference is 5 K. To avoid short switching
cycles and hence the danger of inadequate or only
partial cooling in some sections of the enclosure, The
switching difference should be set to be only as low
as necessary. For economic reasons (energy saving),
the nominal value of the internal enclosure tempera-
ture Ti should also be set to be only as low as neces-
sary.
5.1.1 Operation of the controller
The display terminal H1 consists of a 3 position 7-
segment display which indicates the internal enclo-
sure temperature in °C as well as any fault codes.
The actual enclosure internal temperature is con-
stantly displayed on H1. When a system message is
generated, this alternates in the display with the cur-
rent internal enclosure temperature.

5 Commencing operation and control behavior
page 4 of 28 Rittal cooling unit assembly and operating instructions
5.1.2 Editable parameters
Param.
Type
Display
screen
Parameter
Min.
value
Max.
value
Factory
setting
Description
F PS Password 0 99 22 Protection code for modifying the configu-
ration parameters (default=22). The value
of the password can be customized from
the supervisor
S St Setpoint r1 r2 35 :r1 minimum value and r2 maximum
value of the set point. Parameter St de-
termines the desired temperature to be
maintained inside the cabinet or cold
room (set point).
F rd Regulation differ-
ential
0 +19 5 Value that is added to (or subtracted
from, in ‘reverse’ mode) the temperature
set point.
rd= low values:
 more precise temperature control;
 high compressor On/Off switching
frequency in the event of minimum.
Temperature deviations (with the risk
of causing damage).
rd= high values:
 less precise temperature control;
 low compressor On/Off switching fre-
quency in the event of minimum tem-
perature deviations.
Important: the compressor can also be
safeguarded using the parameters that
limit the number of activations/hour and
the minimum off time
C r1 Setpoint min.
value
20 r2 30 r1 & r2 :set the range of temperatures
for setting the set point.
C r2 Setpoint max.
value
r1 50 45
C cc Continuous cycle
period
0 15 1 (hours) ?
C A0 Alarm and fan dif-
ferential
-20 +20 2 See chapter 5.2
F AH Alarm maximum
temp.
-50 +99 10 See chapter 5.2
C Ad1 Delay for high and
low temp. alarm
0 199 30 Delay for high temperature alarm when
power on just before. When alarm condi-
tion is achieved but power on just before ,
the timer start to count for a specify value
(Ad1). Only the time elapsed, alarm relay
can be active
5.1.3 Parameter navigation
The operating parameters, modifiable using the key-
pad, are divided into two types: frequent (type F) and
configuration (type C). Access to the latter is protected
by password (default= 22) to prevent accidental or un-
authorized modifications.
Accessing the type F parameters:
 Press the SET button for more than 3 s (if there
are active alarms, mute the buzzer), the display
shows the parameter code ‘PS’ (password);
 use the UP and DOWN buttons to scroll the pa-
rameters. The LED corresponding to the cate-
gory of parameters will be on (see parameters
list)
 press SET to display the value associated with
the parameter increase or decrease the value us-
ing the UP or DOWN button respectively;
 press SET to temporarily save the new value and
display the parameter again; repeat the proce-
dure for any other parameters that need to be
modified;
 press the SET button for more than 3 s to perma-
nently save the parameters and exit the parame-
ter setting procedure.

5 Commencing operation and control behavior
Rittal cooling unit assembly and operating instructions page 5 of 28
Accessing the type C parameters:
 Press the SET button for more than 3 s (if there
are active alarms, mute the buzzer), the display
shows the parameter code “PS” (password);
 press the SET button to access the password
setting; use the UP and DOWN buttons to scroll
the numbers until displaying “22” (password to
access the parameters);
 press the SET button to confirm the password ;
 use the UP and DOWN buttons to scroll the pa-
rameters. The LED corresponding to the cate-
gory of parameters will be on (see Below Table);
 press SET to display the value associated with
the parameter increase or decrease the value us-
ing the UP or DOWN button respectively;
 press SET to temporarily save the new value and
display the parameter again;
 repeat the procedure for any other parameters
that need to be modified;
 press the SET button for more than 3 s to perma-
nently save the parameters and exit the parame-
ter setting procedure.
Accessing the type S parameters:
 press SET for 1 s, the set value will start flashing;
 increase or decrease the value using UP or
DOWN;
 press SET to confirm the new value.
5.1.4 Setting the target temperature
The temperature is preset at the factory to 35℃.
 press SET for 1 s, the set value will start flashing;
 increase or decrease the value using UP or
DOWN;
 press SET to confirm the new value.
5.1.5 Setting the temperature range
 Press the SET button for more than 3 s (if there
are active alarms, mute the buzzer), the display
shows the parameter code “PS” (password);
 press the SET button to access the password set-
ting; use the UP and DOWN buttons to scroll
the numbers until displaying “22” (password to ac-
cess the parameters);
 press the SET button to confirm the password;
use the UP and DOWN buttons to scroll the pa-
rameters.
 press SET to display the value associated with the
parameter increase or decrease the value using
the UP or DOWN button respectively;
 press SET to temporarily save the new value and
display the parameter again;
 repeat the procedure for any other parameters
that need to be modified;
 press the SET button for more than 3 s to perma-
nently save the parameters and exit the parameter
setting procedure.
Notice!
It is not allowed to change the value for
„r1 & r2“ without Rittal authorization
5.1.6 Controller display
Figure 2: Controller display
function Normal operation Start up
no. on off flash
1 compressor on off call on
2 digits two digits with sign and decimal
point, -99 to 99(*).
Notice!
The parameters that feature three digit
values can be set from the supervisor. In
this case the display will show “---“
5.1.7 Display buttons
Figure 3: Display buttons
no.
Normal operation Start up/ reset
Pressing the button alone
1
more than 3 s: switch the
compressor ON/OFF -
2
 1 sec: displays/sets
the set point
 more than 3 sec.: ac-
cesses the parameter
setting menu (enter
password 22)
 mutes the audible
alarm (buzzer)
-
pressed
together (2
and 3) acti-
vate parame-
ter reset pro-
cedure
Start up/ reset to factory setting parameters
 Disconnect power supply

5 Commencing operation and control behavior
Rittal cooling unit assembly and operating instructions page 6 of 28
 Reconnect power supply while holding but-
tons 2 and 3
 Display will show the message “CF”

After a few seconds the unit will restart with
factory setting parameters

8 Handling instructions
Page 7 of 28 Rittal cooling unit assembly and operating instructions
5.1.8 Compressor: On / Off
Switching the compressor ON: press UP for more
than 3 s (when pressing the button, the display
shows ON).
Switching the compressor OFF: press UP for more
than 3 s. The display shows the message “OFF”.
In OFF status, the following functions are disabled (if
featured by the model):
 compressor control
 duty setting
 continuous cycle
5.2 Alarm parameters
A0: Alarm temperature differential
This represents the differential used to activate the
high temperature alarm (“AH”) .In the event of an
alarm, as seen in the figure, the value of “A0” deter-
mines the actual activation of the temperature alarm.
The value of “A0” (negative or positive) defines the na-
ture of alarm “AH” (absolute or relative):
 A0 ≤ 0  AH expressed as absolutes
 A0 > 0  AH expressed relative to the set point
Figure 4: High temperature alarm
AH: High temperature alarm
AH setting: 10 degrees is the factory setting (-50 to 99
is the lower and upper limit ). Other Factory settings:
Setpoint (ST) = 35°C; A0 = 2°C.
For example: If the internal temperature of the cabinet
is Ti = 46°C, ST (35°C)+ AH (10°C) = 45°C ,
so 46°C > 45°C the display will show AH-alarm. As
long as Ti is more than 43°C the display will show AH-
alarm, because ST (35°C)+ AH (10°C) - A0 (2°C) =
43°C. If the temperature Ti will fall to 42°C the alarm
AH will no longer be shown in the display. As long as
the temperature inside of the cabinet will not rise over
45°C again there will be no AH-alarm displayed.
Temperature alarm output
 Logo and buzzer on display: The information
“AH” and logo will be shown on the display and
buzzer.
 The over temperature message may also be
polled via a contact on the connection clamp of
the cooling unit (system message relay with
changeover contact, see connection diagrams).
--Terminal “1” C (connection of the supply voltage
to the fault signal relay)
--Terminal “2” NO (normally open) .
Notice!
Delay for high temperature alarm when
power ON: When alarm condition is
achieved but power is ON, the timer
start to count for a specify value (Ad1).
Alarm relay becomes active when this
time is elapsed.
Notice!
The unit of parameter “Ad” is “Sec”.
The unit of parameter “Ad1” is “Min”.
Notice!
The contacts of the relays are normally
open (NO). If the alarm occurs the con-
tacts close (NC).
HP：High pressure alarm output
 Logo and buzzer on display: The information
“HP” and logo will be shown on the display and
buzzer.
 The over temperature message may also be
polled via a contact on the connection clamp of
the cooling unit (system message relay with
changeover contact, see connection diagrams).
--Terminal “1” C (connection of the supply voltage
to the fault signal relay)
--Terminal “2” NO (normally open) .
Notice!
Delay for high temperature alarm when
power ON: When alarm condition is
achieved but power is ON, the timer
start to count for a specify value (Ad1).
Alarm relay becomes active when this
time is elapsed.
Notice!
The unit of parameter “Ad” is “Sec”.
The unit of parameter “Ad1” is “Min”.
Notice!
The contacts of the relays are normally
open (NO). If the alarm occurs the con-
tacts close (NC).
5.3 Evaluating system messages
Display
screen
Buzzer
Alarm
relay
System
message
Measures

8 Handling instructions
Page 8 of 28 Rittal cooling unit assembly and operating instructions
E0 Active Not
active
Ambient
temperature
probe bro-
ken
Check sen-
sor cable
and replace
if necessary
HI Active Active High tem-
perature
alarm
Check cool-
ing capac-
ity/check unit
HP Active Active High pres-
sure alarm
Switch off
unit and
clean/wash
the air filter
5.4 Forced cooling
The continuous cycle is used to maintain refrigeration
forced cooling mode active in the cabinet or cold room,
regardless of the temperature inside the unit. This may
be useful for rapidly bringing the temperature below
the set point value.
To activate or deactivate the continuous cycle from the
keypad, Press UP+DOWN for more than 3 s, the dis-
play shows “cc” and the icon flashes (2 flashes, pause).
The unit starts the forced cooling mode at least after
the minimum compressor off time ( 3 min.). The forced
cooling mode is activated after the start for 1 h. After
this time the unit starts normal operation.
6 Filter mats
The stainless steel filter mat available as an acces-
sory is coarse and filters large dust particles or fluff
from the air. Subject to the suction of the blower be-
ing high enough, fine dust is blown through the filter
mat and the external circuit of the unit. This does not
affect the unit's operation.
Figure 5: Replacement of the filter mat
7 Technical information
The cooling unit (compressor refrigeration unit) con-
sists of four main components: the coolant compres-
sor, evaporator, condenser, and the capillary, which
are connected by suitable Pipe-work. This circuit is
filled with a readily boiling substance, the refrigerant.
The R134a (CH2FCF3) refrigerant is free from chlo-
rine. It has an ozone destroying potential (ODP) of 0
and is therefore environmentally friendly. A filter dryer
which is integrated in the hermetically sealed cooling
circuit, provides effective protection against moisture,
acid, dirt particles, and foreign bodies within the cool-
ing circuit.
7.1.1 Operation of the cooling unit
Figure 6: Operation of the cooling unit
The compressor takes the gaseous refrigerant from
the evaporator and compresses it to a higher pressure
in the condenser. During this process the temperature
of the refrigerant rises above the ambient temperature
and heat can be dissipated to the environment via the
surface of the condenser. Then the refrigerant is liq-
uefied and, by means of a thermostatically controlled
capillary, returned to the evaporator, where it evapo-
rates at low pressure. The heat required for complete
evaporation is drawn from the enclosure interior caus-
ing it to cool down. The cooling cycle is thus completed,
the aforementioned process of the heat transfer starts
afresh.
7.1.2 Condensate discharge
A drain pipe fitted to the evaporator divider panel en-
sures that any condensate which may form on the
evaporator (at high air humidity, low temperatures in-
side the enclosure) is drained away from the bottom of
the unit. For this purpose, a length of hose should be
fitted to the condensate pipe connection piece. The
condensate must be able to run off freely. If the con-
densate is to be drained off over a greater distance,
then care must be taken that the hose is free from
kinks and a check for correct drainage made.

8 Handling instructions
Page 9 of 28 Rittal cooling unit assembly and operating instructions
8 Handling instructions
8.1 Fitting the cooling unit
The enclosure cooling unit may optionally be exter-
nally mounted on the enclosure (1) or partially inter-
nally mounted (2).
Figure 7: Installation method
To this end, cut the side panel or door of the enclo-
sure, as per the Manu included with the supply, and
drill the relevant holes.
Notice!
For mounting the units SK 3370724 in
the TS side panel or rear panel, we rec-
ommend the use of enclosure panel
fasteners TS 8800.071 (see RITTAL
Catalogue).
8.1.1 External mounting of the cooling
unit
 Cut the supplied sealing tape to the correct
length and stick it carefully along the back of the
unit so that no gaps are left at the joints.
Figure 8: Applying the self-adhesive tape
 Screw the supplied grub screws into the blind nuts
on the rear of the unit.
 Secure the unit using the supplied washers and
nuts.
Figure 9: Securing the unit (all compact units except 3370220)
8.1.2 Partial internal mounting of the
cooling unit (accessories not in-
cluded)
 Fix the 4 mounting bars on the air conditioner by
using screws.
Figure 10: Fixing mounting bars
 Cut the supplied sealing tape to the correct length
and stick it carefully along the inside of the rear
enclosure half so that no gaps are left at the con-
nection points.
Figure 11: Sticking sealing tape
 Mount the front enclosure tray using the washers
and nuts.

8 Handling instructions
Page 10 of 28 Rittal cooling unit assembly and operating instructions
Figure 12: Mounting cooling units
8.2 Electrical connection
When performing electrical installation, shall comply
with national and local institute There are existing reg-
ulations and provisions of the local power supply bu-
reau. Electrical safety. Installed by qualified electrician,
electrician must comply with the current standards and
regulations. Connect the power supply cable accord-
ing to the power supply tension as shown on the name
plate by following the instructions below:
Figure 13: Electrical connection
8.2.1 Connection data
 The connected voltage and frequency must corre-
spond to the values stated on the rating plate
 The cooling unit must be connected to the mains
via an all-pin isolating device, which ensures at
least 3 mm contact opening when switched off
 No additional temperature control may be con-
nected upstream of the unit at the supply end
 Install the pre-fuse specified on the rating plate to
protect the cable and equipment from short-cir-
cuits
 The mains connection must ensure low-noise
8.2.2 Overvoltage protection and power
line load
 The unit does not have its own overvoltage pro-
tection. Measures must be taken by the operator
at the supply end to ensure effective lightning and
overvoltage protection. The mains voltage must
not exceed a tolerance of ±10%.
 In accordance with IEC 61 000-3-11, the unit is
intended solely for use at sites with a continuous
current-carrying capacity (incoming mains power
supply) of more than 100 A per phase and with a
supply voltage of 400/230 V. If necessary, the
electricity supply company must be consulted to
ensure that the continuous current-carrying ca-
pacity at the point of connection to the public grid
is sufficient for connection of such a unit.
 The fans and compressors in single- and three
phase units are intrinsically safe (thermal winding
protection). This also applies to transformer ver-
sions, types 3370.424, 1194.424, 3370.524,
1194.524, 3370.724, 1194724 and to special-volt-
age units which are likewise equipped with a
transformer.
 Install the slow pre-fuse specified on the rating
plate (miniature circuit-breaker with appropriate
characteristic – e.g. “K” characteristic – or gG
standard type slow fuse, circuit-breaker for plant
or transformer protection) to protect the cable and
equipment from short-circuits. Select a suitable
circuit-breaker in accordance with the information
specified on the rating plate: Set it to the minimum
specified value. This will achieve the best short-
circuit protection for cables and equipment. Exam-
ple: Specified setting range 6.3 – 10 A; set to 6.3
A.
9 Inspection and maintenance
The cooling circle is designed in the form of a
maintenance-free, hermetically sealed system. The
cooling unit is filled with the required quantity of re-
frigerant at the factory, checked for leaks, and sub-
jected to a functional test run.
The installed maintenance-free fans are mounted on
ball bearings, protected against moisture and dust.
The life expectancy is at least 30,000 operating
hours. The cooling unit is thus largely maintenance-

9 Inspection and maintenance
Rittal cooling unit assembly and operating instructions page 11 of 28
free. All that may be required from time to time is to
clean the components of the external air circuit using
a vacuum cleaner or compressed air if they become
visibly dirty. Any stubborn, oily stains may be re-
moved using a non-flammable detergent, such as de-
greaser. Maintenance interval: 2,000 operating
hours. Depending on the level of contamination in the
ambient air, the maintenance interval may be re-
duced to suit the air pollution intensity.
Notice!
Caution!
Risk of fire!
Never use flammable liquids for
cleaning.
Sequence of maintenance measures:
–Check the level of dirt.
–Filter soiling? Replace the filter if necessary.
–Cooling membranes soiled? Clean if necessary.
–Activate test mode; cooling function OK?
–Check noise generation of compressor and fans.
Sequence of maintenance measures:
-Check the level of dirt.
-Filter soiling? Replace the filter if necessary.
-Cooling membranes soiled? Clean if necessary..
-Check noise generation of compressor and fans.
9.1 Compressed air cleaning
Figure 14: Break power
Figure 15: Twist off the screw on the top of the cover
Figure 16: Twist off the screw on the bottom of the cover
Figure 17: Open the cover
Figure 18: Disconnect the plug of the display

9 Inspection and maintenance
Page 12 of 28 Rittal cooling unit assembly and operating instructions
Figure 19: Twist off the screw of the outside fan(1)
Figure 20: Twist off the screw of the outside fan(2)
Figure 21: Remove the outside fan
Figure 22: Disconnect the plug of the outside fan(1)
Figure 23: Disconnect the plug of the outside fan(2)
Figure 24: Clean the heat pipe and compressor
chamber using compressed air

9 Inspection and maintenance
Rittal cooling unit assembly and operating instructions page 13 of 28
Figure 25: Clean the heat exchanger using
compressed air
10 Storage and disposal
Store the cooling unit in the appropriate position for
transport.
The closed cooling cycle contains refrigerant and oil,
which must be properly disposed of for the protection
of the environment. Facilities for disposal are availa-
ble at the Rittal plant.
Please contact us for advice.
11 Scope of supply and guarantee
1 cooling unit, ready for connection
1 sealing tape
1 set of mounting and operating instructions
Guarantee:
This unit is covered by a 1-year guarantee from the
date of supply, subject to correct usage(see also
Safety notices under heading 4.). Within this period,
the returned unit will be repaired in the factory or re-
placed free of charge. The cooling unit is to be used
for the cooling of enclosures only. If it is connected or
handled improperly the manufacturer’s guarantee
does not apply and in this case we are not liable for
any damage caused.
12 Wire plan

12 Wire plan
Rittal cooling unit assembly and operating instructions page 14 of 28

12 Wire plan
Rittal cooling unit assembly and operating instructions page 15 of 28

Inhaltsverzeichnis
威图机柜空调装配说明书 page 15 of 27
目录
目录 ........................................................... 16
1应用场合 ................................................. 17
2技术参数 ................................................. 17
3壁挂式安装 .............................................. 17
4安全须知 ................................................. 17
5操作和控制方式 ....................................... 17
5.1 控制器控制 ................................................... 17
5.1.1 控制器的操作 ............................................. 17
5.1.2 参数列表 .................................................... 18
5.1.3 参数设置 .................................................... 18
5.1.4 设定目标温度 ............................................. 19
5.1.5 设定温度范围 ............................................. 19
5.1.6 屏幕显示 .................................................... 19
5.1.7 按键显示 .................................................... 19
5.1.8 开机与关机 ................................................ 19
5.2 报警说明 ....................................................... 20
5.3 报警信息及系统状态 ..................................... 20
5.4 强制制冷 ....................................................... 20
6过滤网 ..................................................... 21
7技术信息 ................................................. 21
7.1.1 空调的运行 ................................................ 21
7.1.2 冷凝水的排放 ............................................. 21
8使用说明 ................................................. 21
8.1 空调的安装 ................................................... 22
8.1.1 空调的外部式安装 ...................................... 22
8.1.2 空调的半嵌入式安装 .................................. 22
8.2.1 连接要点 .................................................... 23
8.2.2 过压保护和电源线载荷 .............................. 23
9检验和维修 .............................................. 23
9.1 概述 ............................................................. 23
9.2 用压缩空气清吹 ............................................ 24
10 存放和处理 ........................................... 25
11 供货范围和保修 ................................... 25
12 电路图 .................................................. 26

1 应用场合
威图机柜空调装配说明书 page17 of 27
1应用场合
控制机柜空调是被设计并用于把控制柜的空气冷却同
时把柜内热量排出柜外，从而保护温度敏感部件。
2技术参数
参见标签
3壁挂式安装
标准的壁挂式空调适用于外部式安装。在机柜上开孔
然后安装空调。拧紧空调背面的螺纹孔，然后使用垫
圈和螺母进行固定。
4安全须知
为了正确使用本设备，请仔细阅读以下安全须知。
 为了防止机柜及空调翻倒，必须用螺栓把机柜在
地上固定好。
滚轮是用来保证控制柜门的正常开关的
一个带有内置空调的外壳应当只用于当空调是用
一个单独的运输板固定时。
安装之前，请确保以下情况：
 根据现场的位置选择空调的布置以保证良好的通
风
 现场没有过度潮湿和过多的灰尘。
 进气口位于柜体的上部
 电压与频率必须与空调铭牌上的数值相匹配
 使用环境温度不超过 50 摄氏度
 包装没有破损。破损包装上的油痕说明制冷剂已
经泄漏。任何包装上的破损都可能是后续损坏的
原因
 控制柜应保持密封，并且避免柜门频繁打开，以
免外部空气进入，产生过多冷凝水（超出空调消
除能力的冷凝水，将自动通过排水口排出）。
 与墙面以及其他系统之间至少保持 200mm 的距
离
 选择安装位置时，应避免控制柜内部的电子元器
件阻挡空调的进出风，
 该设备在安装时，应保证上下位置正确，左右、
前后方向垂直，其最大倾斜度为 2度。
 提供冷凝水排放
 空调的安装及电气接线必须由专业人员严格参照
本说书的相关规定来操作。
 仅使用原装备件和配件
 控制柜内部元器件的散热量不得超过空调的可用
制冷能力。
 用户不能用任何方式改动空调
 禁止用水冲洗空调，防止造成人员伤害及机器的
损坏。
5操作和控制方式
空调安装完成后，应至少等待 30 分钟后（让内部冷
冻油回流到位以保证正常的润滑和制冷）才可接通电
源开始操作。
5.1 控制器控制
图 1: 控制显示器
电路连接之后，内部的风扇启动，控制柜内的空气
开始循环，这样有助于保证柜内的温度分布平均。冷
凝风扇及压缩机启停由控制器控制。压缩机重新启动
的最小间隔时间为 3分钟。开关温度差为 5K。为了避
免柜内制冷区域冷热换热短路及由其引起不充分制冷
的危险，或者只有柜内的某些区域部分冷却，开关差
设定应根据实际需要来设定。考虑经济因素（节能），
柜内的温度 Ti 同样需要根据实际需要来设定。
5.1.1 控制器的操作
显示终端为一个 3位7段的显示器，它可以显示柜内
摄氏温度和故障码。实际的柜内温度在 H1 上实时显
示。当产生一个系统信息时，显示器的显示在当前柜
内温度和系统信息间交替切换。

5 操作和控制方式
威图机柜空调装配说明书 page 18 of 27
5.1.2 参数列表
5.1.3 参数设置
可通过前面板小键盘修改的运行参数被分成三类：
频繁使用的参数（F类），结构参数（C类）和其
他参数（S类）。使用一条口令设限对结构参数
（默认为 22）的访问进行保护，以防止意外或未
授权的修改。
访问 F类参数:
 按住 SET 键并保持 3秒以上（在报警情况
下，使蜂鸣器禁音）来显示参数‘PS’（口
令）代码：
 使用 UP 键和 DOWN 键上下翻动显示参数的
名称。当翻动到的参数与示屏上的 LED 图标
对应时，LED 灯会亮（参考参数表 ）：
 按下 SET 键来显示与参数有关的值，分别使
用UP 或DOWN 键来增加或减小参数的值；
 按下 SET 键临时存储参数的新值，并再次显
示参数；如果任何参数需要修改，请重复以上
操作步骤;
 按住 SET 键并保持 3秒以上时间，将参数永
久保持并退出参数设置程序。
访问 C类参数:
 按住 SET 键并保持 3秒以上（在报警情况
下，使蜂鸣器禁音）来显示参数‘PS’（口
令）代码;
 按下 SET 键输出口令；使用 UP 或DOWN 键
来上下翻动显示数字，直到显示“22”（访问
参数的口令）
 按下 SET 键确认口令 ;
 使用 UP 键和 DOWN 键上下翻动显示参数的
名称。当翻动到的参数与示屏上的 LED 图标
对应时，LED 灯会亮（参考下表 ）;
 按下 SET 键来显示与参数有关的值；分别使
用UP 或DOWN 键来增加或减小参数的值;
 按下 SET 键临时存储参数新值，并再次显示
参数;
 如果任何参数需要修改，请重复以上操作步骤;
按住 SET 键并保持 3秒以上时间，将参数永久保
持并退出参数设置程序
参数类型 代码 参数 最小
值
最大值 默认值 描述
F PS 密码 0 99 22 修改设置参数的保护代码（默认为 22）。
这个口令可以通过显示器修改。
S St 设定点 r1 r2 35 St:用户设定点；r1：最小允许设定点；
r2：最大允许设定点。参数 St 确定冷柜或
冷库内期望保持的温度（设定点）。
F rd 控制偏差 0 +19 5 增加到（反向模式下，减少到）温度设定
点的值：
r4=低值：
更高精确度的温度控制；在最小偏差值
时，高频率的启动/停止压缩机（有损坏压
缩机的风险）
rd= 高值：
低精确度的温度控制；在最小偏差值时，
低频率的启动/停止压缩机
重要说明：通过设置参数来限制压缩机每
小时的激活次数和最小停机时间，可以有
效保障压缩机的使用寿命（请考参数“压缩
机保护”C 参数）。
C r1 设定点最小值 20 r2 30 R1 和R2：设置设定点的温度范围。
C r2 设定点最大值 r1 50 45
C cc 强制制冷持续时间 0 15 1 (hours)
C A0 报警及风扇差动 -20 +20 2 详见章 5.2
F AH 用于高温报警的绝
对和相对温度
-50 +99 10 详见章 5.2
C Ad1 上电时高温报警延
时
0 199 30 当刚上电时，高温报警有延时. 也就是说
当设备刚上电就达到高温条件, 延时继电
器启动(Ad1)参数. 仅当延时继电器时间达
到(Ad1)参数设定时,高温报警继电器才开
始.

5 操作和控制方式
威图机柜空调装配说明书 page 19 of 27
访问 S类参数:
 按住 SET 键1秒以上,参数会闪动;
 分别使用 UP 或DOWN 键来增加或减小参数
值;
 按下 SET 键临时存储参数的新值，并再次显
示参数.
5.1.4 设定目标温度
控制柜内部温度由工厂预设为 35℃。可通过下面
操作改变参数.
可参看 S类参数设置。
5.1.5 设定温度范围
 按住 SET 键并保持 3秒以上来显示参数‘PS’
（口令）代码：
 按下 SET 键输出口令；使用 UP 或DOWN 键
来上下翻动显示数字，直到显示“22”（访问
参数的口令）
 按下 SET 键确认口令；使用 UP 键和 DOWN
键上下翻动显示参数的名称。当翻动到的参数
r1 或r2 时，停止翻动
 按下 SET 键来显示与参数有关的值；分别使用
UP 或DOWN 键来增加或减小参数的值
 按下 SET 键临时存储参数的新值，并再次显示
参数；
 如果任何参数需要修改，请重复以上操作步骤；
按住 SET 键并保持 3秒以上时间，将参数永久
保持并退出参数设置程序。
注意!
在没有威图公司授权情况下，禁止客
户更改”r1“及”r2“的参数值
5.1.6 屏幕显示
图 2: 控制显示器
编
号 功能 正常运行 启动
开 关 闪烁
1 压缩机 开 关 请求 开
2 数字 两个带有小数点的数字，显示范围
为-99 到99
注意!
(*)带三个数字值的参数可以通过显
示器设定。这种情况下，显示屏将显
示为 “—“
5.1.7 按键显示
图 3: 显示按钮
编号
正常运行 Start up/ reset
单独按按钮
1
持续超过 3 秒：压缩机启
动/停止 -
2
 1 秒：显示/设定设定
值；
 持续超过 3 秒；进入
参数设定菜单（输入
密码 22）
 将听得到的报警设为
静音（蜂鸣器）
-
一起按住所有
健激活参数复
位程序
启动/.恢复出厂设置
 断开电源
 重新连接电源时按住按钮 2和3
 显示器将显示消息“CF”
 几秒后会系统重启并恢复出厂设置
5.1.8 开机与关机
启动装置：按下 UP 健超过 3秒（当按下这个健
后，显示屏显示 ON）
关闭装置：按下 UP 健超过 3秒（当按下这个健
后，显示屏显示 OFF），与设定的传感器测量的
温度交替显示。
在OFF 状态下，下列功能无效压缩机/执勤设定/强
制制冷
压缩机的控制
 任务设置
 连续循环

9 检查和维修
威图机柜空调装配说明书 page 20 of 27
5.2 报警说明
A0: 报警和风机温差
 表示用来激活高温报警报警的温差（ AH” )。出
现一个报警时（如图中所示），“A0”的值决定
了温度报警的实际触发温度。“A0”的值（负值
或正值）决定了“AH” 报警的属性（分别为绝
对或相对），具体说明如下:
 A0≤ 0 “AH” 表示绝对
 A0> 0 “AH” 表示相对设定点
图 4: 高温报警
高温报警 AH 说明
AH 设定：10 度是出厂设定（-50 和99 是上限和下限）
原厂设定，就是 ST 设定（35 度），AO 设定（2度）
AH 设定（10 度）
例如：如果机柜内部温度是 46 度（ST 设定）35+
（AH 设定）10=45 度，这个时候空调显示温度是 46
度，大于 45 度，这时空调会报警 AH。（只要机柜内
部温度大于 45 度就会报警 AH）
AH 报警的消除
例如：如果机柜内部温度是 42 度（ST 设定）35+
（AH 设定）10-（AO 设定）2=43 度，这时空调显示
温度是 42 度，小于 43 度，空调就会报警消除。只要
机柜内部温度小于 43 度就会报警消除
高温报警输出
 显示和蜂鸣输出：显示器上会显示：”AH”图标
及有蜂鸣声。.
 干结点报警输出：通过空调的用户终端接口上的
触点发送高温报警信息（详见空调电路图）。
--端子 “1” C (公共点）
--端子 “2” 常开 .
注意!
当刚上电时，高温报警有延时. 也就是
说当设备刚上电就达到高温条件, 延时
继电器启动(Ad1)参数. 仅当延时继电器
时间达到(Ad1)参数设定时,高温报警继
电器才开始.
注意！
延时继电器“Ad”单位 是秒，而延时
继电器“Ad1”单位 是分钟。
注意!
干结点报警输出的继电器在未有报警输
出时一直为常开状态，一旦有高温故障
时，继电器闭合
高压报警 HP 输出
显示和蜂鸣输出：显示器上会显示：”HP”图标及
有蜂鸣声。.
 干结点报警输出：通过空调的用户终端接口上的
触点发送报警信息（详见空调电路图）。
--端子 “1” C (公共点）
--端子 “2” 常开 .
注意!
干结点报警输出的继电器在未有报警输
出时一直为常开状态，一旦有高压故障
时，继电器闭合
门卫报警 HP 输出（选配）
 显示和蜂鸣输出：显示器上会显示：”HP”图标
及有蜂鸣声。.
 干结点报警输出：通过空调的用户终端接口上的
触点发送报警信息（详见空调电路图）。
--端子 “1” C (公共点）
--端子 “2” 常开 .
注意!
干结点报警输出的继电器在未有报警输
出时一直为常开状态，一旦有高压故障
时，继电器闭合
5.3 报警信息及系统状态
屏幕显
示
蜂鸣音 报警继
电器
系统信
息
解决措
施
E0 运行 停止 环境温
度传感
器损坏
检查传感
器的接
线，必要
时更换
HI 运行 运行 高温报
警
检查制冷
量及制冷
机
HP 运行 运行 高压报
警
关机并拆
洗冷凝器
侧的过滤
网
HP 运行 运行 开门报
警（选
配）
检查机柜
门是否正
确关闭复
位
5.4 强制制冷
强制制冷用于保持制冷持续动作，不管装置内的温度
是多少。 强制制冷的作用是用来迅速降低温度，甚至
使温度降到设定点以下，例如：在装满冷柜后。在这