Danfoss Controller type AKC 24W for controlling water chillers. Vers. 4.4x. AKA 21 Installation guide
- Type
- Installation guide
RC.1J.C3.02 → RC.1J.C4.02 09-1995
Software version 4.4x
Controller for controlling water chillers
AKC 24W
ADAP-KOOL
®
Menu operation via AKA 21
2 Menu operation RC.1J.C4.02 © Danfoss 09/95 AKC 24W Version 4.4X
System survey
A refrigerating plant fitted with ADAP-KOOL
®
refrigeration controls will mostly consist
of several controllers where each controller will regulate its own refrigeration
appliance/cold room.
The system has been designed in such a way that contact can be made to each and
every controller via a data communication system. One specific controller is selected,
and it will now be possible to make settings and readouts for this unit.
The individual controllers can be operated in two
ways:
1. With control panel type AKA 21.
Use this document when operation takes place in
this way.
2. With PC and system software type AKM. Use
another document with literature number
RC.1J.P2.02.
Operation
Validity
This menu operation (dated October 1994), applies to AKC 24W with the
following code number:
084B2003 that is fitted with software version 4.4x.
AKC 24W Version 4.4X Menu operation RC.1J.C4.02 © Danfoss 09/95 3
All controllers that are connected to the same network can be operated with the
control panel. There may be as many as 125 controllers, and they are shown in
groups of 16 on the display.
A system is shown here which consists of more than 16 controllers. The meaning of
the letters is, as follows:
A: AKC controller
E: Controller with active ERROR (on addresses 2, 11 and 12 in this example)
g: Gateway (to addresses 13 and 14 in this example)
G: Gateway with connected printer
: A blank field indicates that there is no unit with this address.
Select the unit that is to be operated by using the “+/On” or “-/Off” key, and push
“Enter”. In this example you select the controller with address 4.
If the system comprises more than 16 units or units with an address code higher than
16, you may change to the next group by pushing "→".
When a controller has been selected, you can make settings in it. This setting is
performed, as follows:
Shown in the upper right corner of the display is the setting with which the controller is
operating. Below that value a new setting may be made. Use the three keys “+/ON”,
“-/OFF” and “Digit” for setting the new value. This new value will not govern the
regulation until you push the key “Enter”.
Select a controller
Settings of a controller
5
-50 to +50 5
ON
OFF / ON ON
The functions in the controller can be protected by means of an access code.
Depending on the settings to be made, you may gain access in one of the following
ways:
User input: Gives access to:
1. Push F1 Display of alarms
2. Push F2 Read selected pressures and capacities, stop and
start the regulation
3. Code 1 and then F1 Acknowledgement of alarms
Code 1 and then F3 Setting of selected parameters
4. Code 2 Operation of all settings of the entire menu system
(with system software type AKM there is access to
additional functions).
Pages 6 and 7 contain a description of how you gain access to the system via a code.
Access to a controller
1 < 1 > 16
AEAAAAAAAAEEgg A
1 < 4 > 16
AEAAAAAAAAEEgg A
17 < 17 > 32
AAA
4 Menu operation RC.1J.C4.02 © Danfoss 09/95 AKC 24W Version 4.4X
A supporting text is attached to the individual functions. When such a function is
shown in the control panel’s display, the supporting text can be obtained by pushing
the key “Help”. The supporting text is intended as a help to users who no longer use
these operating instructions.
In the menus shown below functions with supporting texts are identified with the word
“Help” next to the function.
When an error appears in a system, it can be seen on the control panel’s display
which will show an “E”. If the control panel shows a text from a selected controller, the
LED at the word “Alarm” will furthermore flash.
When an error has occurred, first select the controller on which the error is registered.
When the controller has been found, push “F1”, and the error message will appear.
At the end of the document there is a list of all the error messages and a description
of how to acknowledge an alarm.
Supporting text
How to localise an error
When one controller has been selected from the total system, the following display
will appear (the display is the first one shown when you have selected an address
from the total system):
e.g.
AKC 24W Adr: 2
E Mon-11:27
From this position you can freely choose between several forms of operating levels:
1. Display of alarms - push “F1”
2. Display and setting of a few selected functions - push “F2”
3. Display and setting of several selected functions - push “F3”
The function may be protected with a code (code 1)
4. Display and setting of all allowed functions in the controller. The function may be
protected with a code (code 2).
Operation of the individual levels is shown below:
When you push “F1” the alarm messages from the controller in question appear.
Only active alarms are shown. With a push on "↓" you can see whether there are
more alarm messages, and if so, their texts.
When an alarm has been localised and corrected, the alarm is acknowledged
(removed from the system, so that it no longer appears). In large systems where a
gateway is also connected this acknowledgement will take place automatically. In
other systems it has to be done manually, cf. end of the document.
Prior to the acknowledgement of the alarm, the keying of a code is required, see
page 6.
Leave the F1 function by pushing "←".
Functions of a
controller
1 < 2 > 16
AEAAAAAAAAAAgg A
AKC 24W Adr: 2
E Mon-11:27
Standby Mode
1. F1
AKC 24W Version 4.4X Menu operation RC.1J.C4.02 © Danfoss 09/95 5
When you push “F2” a number of functions will appear where it is possible to read
values.
You can move to and from the individual functions by pushing "↑" or "↓". On page 3 you
can see how a setting is changed.
Media °C Media temperature
3:02:02
Ref °C Media temperature reference
3:02:03 incl. external reference signal (if used)
P0/S1 A °C Evaporating temperature A
4:02:05
Compr. A % Cut-in capacity in %, compressor A
3:02:06
P0/S1 B °C Evaporating temperature B
5:02:05
Compr. B % Cut-in capacity in %, compressor B
3:02:07
SH A K Superheat measured with the sensors P0A/S1 and S2
4:02:02
SH Ref. A K Actual superheat reference of the control
4:02:03
TQ open A % Temperature of the TQ valve according to its max. permissible temperature
4:02:07 (Kmax)
SH B K Superheat measured with the sensors P0B/S1 and S2
5:02:02
SH Ref. B K Actual superheat reference of the control
5:02:03
TQ open B % Temperature of the TQ valve according to its max. permissible temperature
5:02:07 (Kmax)
Rfg. Type R Reading of set refrigerant type
2:04:01
Leave the F2 function by pushing "←".
2. F2
6 Menu operation RC.1J.C4.02 © Danfoss 09/95 AKC 24W Version 4.4X
When you push “F3”, a number of functions will appear which are used when the
system is serviced.
• If access code is used (code 1), key it as follows:
- Push the “key”
- Enter the code by using the three keys “+”, “-” and “Digit” (the code is men-
tioned later as code 1, and the factory setting is 40. If code 2 has been set at
0, access code 1 cannot be used).
- Push “Enter”
- Push “F3”
Move to and from the individual functions by pushing "↑" or "↓".
On page 3 you can see how a setting is changed.
Media °C Reference value of media temperature
-99.9 99.9
3:03:02
Main Switch Main switch: 1: Regulation
-1 / 0 / 1 0: Controller stop
2:02:01 -1: Service mode
Leave the function by pushing "←".
3. F3
AKC 24W Version 4.4X Menu operation RC.1J.C4.02 © Danfoss 09/95 7
4. Access to all
functions
The access to the functions may be protected with a code (code 2).
• If access code is used, key it as follows:
- Push the “key”
- Enter the code by using the three keys “+”, “-” and “Digit”
- Push “Enter”
- Push "←"
Move to and from the individual functions by pushing the four arrow keys.
On page 3 you can see how a setting is changed.
When you wish to leave the “Access to all functions” function, push “Clear” and then
"←".
List of functions on level 1:
1. Controller’s access picture and access to system information
2. Controller switch and selection of refrigerant
3. Capacity control
4. Expansion valve function A
5. Expansion valve function B
6. Forced-control functions for service and initial setting
Below and on the following pages the individual functions are shown together with a
brief description:
Level 1 Level 2 Level 3 Description
AKC 24W Adr: xxx Controller access display
Mon hh:mm If the code function is used, continue by pushing the "key" key.
Enter Code Entry of access code 1 or access code 2 (cf. also 1:07 and 1:08).
0 - 255 0 Continue by pushing "arrow left"
1:01
AKC 24W Adr: xxx Acces to system information
Mon hh:mm If an E appears in the display, an error has been registered
1
Code No. Reading of the controller’s code number and software version
Prog.Ver.
1:02
|
Clock: Setting of controller clock (AKC clock)
MON-00:00
1:03
Clock: Day Setting of day (1 = Monday, 7 = Sunday)
(Mon)1 (Sun)7
1:03:01
|
Clock: Hour Setting of hours
0 23
1:03:02
|
Clock: Min. Setting of minutes
0 59
1:03:03
|
System address Reading of the controller’s system address
Addr. yyy xxx yyy = network No. and xxx = address
1:04 The system address can only be set via PC
8 Menu operation RC.1J.C4.02 © Danfoss 09/95 AKC 24W Version 4.4X
|
Alarm report to Reading of the alarm address (end receiver) the alarms are to be sent to
Addr. yyy xxx The alarm address can only be set via PC
1:05
|
Gateway Address Reading of address of nearest gateway which has to effect alarms
125 The address can only be set via PC
1:06
|
Chg. Code1 Change of code 1. The code gives access to acknowledgement of active
0 255 alarm by means of the F1 key.
1:07 Also access to the selected settings/readouts via the F3 key.
| (Factory setting = 40) (See also code 2)
Chg. Code2 Change of code 2. The code gives access to the whole menu system.
0 255 (Factory setting = 0. Setting = 0 offers free access where neither
1:08 code 1 not code 2 is required)
|
Main Function Main function
2
Alarm message Error log is only visible in case of an active error.
(At alarm, an E is shown on the display).
2:01
See page 16 for list of alarm messages
2:01:01
|
Main Switch Access to the main switch.
Ctrl(1)/Serv(-1)
2:02
Main Switch Main switch: 1: Regulation
-1 / 0 / 1 0: Controller stop
2:02:01 -1: Service mode
|
Cooling (1) Access to selection of regulation
Heating (2)
2:03
Cool/Heat Selection of regulation: 1: Refrigeration
1 2 2: Heat pump
2:03:01
|
Rfg. type 1..22 Access to selection of refrigerant
2:04
Rfg. Type R Reading of set refrigerant type
2:04:01
|
Rfg. Type Selection of refrigerant: 0: No refrigerant selection 12: R142b
Help 0 22 1: R12 13: User-defined
2:04:02 2: R22 14: R32
3: R134a 15: R227
4: R502 16: R401A
5: R717 (ammonia) 17: AZ50
6: R13 18: R402A
7: R13b1 19: R404A
8: R23 20: KLEA 66
9: R500 21: R407A
10: R503 22: KLEA 61
11: R114
|
Rfg. Fac.a1 Refrigerant selection No. 13. Special function, please contact Danfoss.
*****32766
2:04:03
|
Rfg. Fac. a2 Refrigerant selection No. 13. Special function, please contact Danfoss.
*****32766
2:04:04
|
Rfg. Fac. a3 Refrigerant selection No. 13. Special function, please contact Danfoss.
*****32766
2:04:05
AKC 24W Version 4.4X Menu operation RC.1J.C4.02 © Danfoss 09/95 9
|
Capacity Ctrl. Capacity control
3
Alarm messages Error log is only visible in case of an active error.
(At alarm, an E is shown on the display).
3:01
See page 16 for list of alarm messages
3:01:01
|
Cap.Measurements Reading of measuring values related to capacity control
3:02
Cap. Ctrl. Statement of capacity control (ON/OFF)
3:02:01
|
Media °C Media temperature
3:02:02
|
Ref °C Media temperature reference
3:02:03 incl. external reference signal (if used)
|
Limit °C Temperature measured on sensor defined as "Limit" sensor (see 3:04:02)
3:02:04
|
DI 3 Statement of external ON/OFF switch connected to terminal DI 3
3:02:05
|
Compr. A % Cut-in capacity in %, compressor A
3:02:06
|
Compr. B % Cut-in capacity in %, compressor B
3:02:07
|
DO 9 Status of output DO9 (extra capacity)
3:02:08
|
Safety A Statement of safety circuit connected to terminals DI 1
3:02:09 (control A)
|
Safety B Statement of safety circuit connected to terminals DI 2
3:02:10 (control B)
|
Run A h/10 Operating time for compressor A
3:02:11 Example: If 120 is displayed, the operating time is 1200 hours
|
Run B h/10 Operating time for compressor B
3:02:12 Example: If 1200 is displayed, the operating time is 12000 hours
|
Cap. Settings Setting of capacity control
3:03
Cap. Ctrl. Choose capacity control ON/OFF
OFF ON
3:03:01
|
Media °C Reference value of media temperature
-99.9 99.9
3:03:02
|
Media Al °C Upper alarm limit for media temperature
-50.0 99.0 Absolute value
3:03:03
|
Limit °C Lowest permissible media temperature (frost-protection)
-99.9 50.0
3:03:04
10 Menu operation RC.1J.C4.02 © Danfoss 09/95 AKC 24W Version 4.4X
|
NZ K Neutral zone for media temperature
0.1 10.0
3:03:05
|
+ Zone K Regulating band above neutral zone
0.5 10.0
3:03:06
|
- Zone K Regulating band below neutral zone
0.5 10.0
3:03:07
|
Adv. Capacity Setting of special parameters
Settings
3:04
Media Sens Selection of sensor input for measuring media temperature
Help 1 5 1: S3
3:04:01 2: S4
3: P0 A
4: P0 B
5: P AUX
|
Limit Sens Selection of sensor input for limit measurement
Help 0 6 0: No sensor
3:04:02 1: S3
2: S4
3: P0 A
4: P0 B
5: P AUX
6: Lowest value of P0 A or P0 B
|
+ Zone s Time delay between step cutins in the regulating band above the neutral zone
0 900 Set in seconds
3:04:03
|
- Zone s Time delay between step cutins in the regulating band below the neutral zone
0 900 Set in seconds
3:04:04
|
+ + Zone s Time delay between step cutins in the regulating band above the "+ zone band".
0 300 Set in seconds
3:04:05
|
- - Zone s Time delay between step cutins in the regulating band below the "- zone band"
0 300 Set in seconds
3:04:06
|
Del A min. Minimum time before compressor A can be restarted
1 60 Set in minutes
3:04:07
|
Del B min. Minimum time before compressor B can be restarted
1 60 Set in minutes
3:04:08
|
Max. step A Definition of compressor A steps
1 8
3:04:09
|
Max. step Definition of total number of steps
1 8 (Sum of steps: compressor A + compressor B)
3:04:10
AKC 24W Version 4.4X Menu operation RC.1J.C4.02 © Danfoss 09/95 11
|
Ext.Ref. Definition of external reference signal (connect to terminal "REF")
0 2 0: No connection
3:04:11 1: 0 - 10 V signal
2: 2 - 10 V signal
|
Ext.Max. K Displacement to be produced by max. reference signal (10 V)
-50 50
3:04:12
|
SH Step 1 Superheat reference at initial start or control without adaptive control
-5 20 (ADAP MODE = 1)
3:04:13 (4:03:02/5:03:02)
|
SH Step 2
-5 20 -- |¦ --
3:04:14
|
SH Step 3
-5 20 -- |¦ --
3:04:15
|
SH Step 4
-5 20 -- |¦ --
3:04:16
|
SH Step 5
-5 20 -- |¦ --
3:04:17
|
SH Step 6
-5 20 -- |¦ --
3:04:18
|
SH Step 7
-5 20 -- |¦ --
3:04:19
|
SH Step 8
-5 20 -- |¦ --
3:04:20
|
Max A h/10 Setting of hour counter for next compressor service to be performed
032000 (compressor A)
3:04:21 Example: 8000 hours until next service,
hour counter (3:02:01) to read: 1200 (= 12000 hours)
Set menu to 2000 (= 20000 hours)
|
Max B h/10 Setting of hour counter for next compressor service to be performed
032000 (compressor B)
3:04:22
|
Time share Priorities for operation of compressors A and B:
1 3 1: A starts before B
3:04:23 2: B starts before A
3: Equalisation of operating time
|
Step mode Step cutouts with two compressors
1 2 1: Last in, first out
3:04:24 2: Change of sequence! (e.g. 7-6-4-5-3)
(cf. also "Max step A" 3:04:09)
|
DO9 mode Additional capacity required
1 2 1: Because all steps are cut in
3:04:25 2: The media temperature sensor registers a higher value than the one set in the
next menu
12 Menu operation RC.1J.C4.02 © Danfoss 09/95 AKC 24W Version 4.4X
|
DO9 set °C Temperature value where additional capacity is cut in
-99.9 99.0 (see previous menu, setting 2)
3:04:26
|
DO9 diff K Temperature differential for previous menu
1.0 5.0
3:04:27
|
Injection Ctrl. A Expansion valve function A
4
Alarm message Error log is only visible in case of an active error.
At alarm an E is shown on the display.
4:01
See page 16 for list of alarm messages
4:01:01
|
Inj. Measurements Reading of measurement values related to expansion valve
4:02 function A.
Inj. Ctrl. A Statement of expansion valve ON/OFF
4:02:01
|
SH A K Superheat measured with the sensors P0A/S1 and S2
4:02:02
|
SH Ref. A K Actual superheat reference of the control
4:02:03
|
SH Mss. A K Registered optimum superheat
4:02:04 (only with "Adap mode" in pos. 2) (4:03:02)
|
P0/S1 A °C Evaporating temperature converted from pressure
4:02:05
|
S2 A °C Refrigerant temperature at evaporator outlet
4:02:06
|
TQ open A % Opening of the TQ valve according to its max. permissible temperature
4:02:07 (Kmax)
|
Inj. Settings Setting of expansion valve function A.
4:03
Inj. Ctrl. A Choose expansion valve function ON/OFF
OFF ON
4:03:01
|
Adap. Mode Selection of type of regulation
Help 1 5 1: Regulation based on fixed superheat reference (individually set for each
4:03:02 capacity step)(3:04:13 to 3:04:20)
2: Adaptive regulation following minimum superheat
3: Regulation based on defined SH-curve
Injection only allowed if the respective compressor is running
4: Regulation based on defined SH-curve
Injection allowed if just one of the compressors are running
5: As 4, but the TQ valve kept in stand-by when the regulation is stopped by
the external function switch
|
MOP Choose MOP function ON/OFF
OFF ON
4:03:03
|
MOP °C Value of MOP point
-40.0 40.0
4:03:04
AKC 24W Version 4.4X Menu operation RC.1J.C4.02 © Danfoss 09/95 13
|
Adv. Inject Setting of special parameters
Settings
4:04
Use AKS 32 ON for use of pressure transmitter for registration of P0A
OFF ON OFF for use of of Pt 1000 ohm sensor as S1A sensor
4:04:01
|
SH Close K Min. value of superheat reference at loads below 10%
1 15 (The value must be lower than SH min.)
4:04:02
|
SH Min K Min. value of superheat reference
2 15
4:04:03
|
SH Max. K Max. value of superheat reference
2 20
4:04:04
|
K max. Curve Change of TQ valve K max. curve (max. actuator pressure)
5.0 50.0
4:04:05
|
Kp Amplification factor
0.5 5.0
4:04:06
|
Tper sec Period time. (Minimum time between two automatic reductions of the superheat
60 600 reference = 1.5 x Tper.
4:04:07 Integration time = 0.8 x Tper)
|
Standby K Diaplacement of TQ valve’s standby temperature:
-15 15 relation to the TQ valve’s opening temperature (K curve)
4:04:08 (negative values only)
|
Injection Ctrl. B Expansion valve function B
Description for "injection Ctrl B" is the same as for "Injection Ctrl. A" (4)
5
|
Service Mode Service function
6
Measurements Measurements
6:01
P0 A Bar Pressure measured with pressure transmitter connected to P0A inlet
6:01:01
|
P0 B Bar Pressure measured with pressure transmitter connected to P0B inlet
6:01:02
|
Paux Bar Pressure measured with pressure transmitter connected to Paux inlet
6:01:03
|
S1 A °C Refrigerant temperature at evaporator inlet control A
6:01:04
|
S2 A °C Refrigerant temperature at evaporator outlet control A
6:01:05
|
S1 B °C Refrigerant temperature at evaporator inlet control B
6:01:06
|
S2 B °C Refrigerant temperature at evaporator outlet control B
6:01:07
14 Menu operation RC.1J.C4.02 © Danfoss 09/95 AKC 24W Version 4.4X
|
S3 °C Media temperature measured with S3 sensor
6:01:08
|
S4 °C Temperature measured with S4 sensor
6:01:09
|
Ext ref V Registered temperature value of external reference connected to terminal "REF"
6:01:10
|
DI 3 Statement of cut-off function connected to terminal "DI 3"
6:01:11
|
TQ A °C TQ-temperature, control A (NTC)
6:01:12
|
TQ B °C TQ-temperature, control B (NTC)
6:01:13
|
Safety A Statement of safety circuit at terminal DI 1 (control A)
6:01:14
|
Safety B Statement of safety circuit at terminal DI 2 (control B)
6:01:15
|
Manual Control Forced servo operation of outlets (service)
6:02
Man. Ctrl. ON: Manual control permitted (see 2:02:01)
OFF ON PLEASE NOTE: No monitoring
6:02:01 When manual setting is finished, the setting must be changed to OFF
|
TQ A % Forced servo operation of power supply to expansion valve control A.
0 100 (It is not the valve's opening degree)
6:02:02
|
TQ B % Forced servo operation of power supply to expansion valve control B.
0 100 (It is not the valve's opening degree)
6:02:03
|
Step 8 Forced servo operation of outlet D08
OFF ON ON => 24 V a.c. on C3/C4
6:02:04
|
More Cap. Forced servo operation of outlet DO9
OFF ON ON => 24 V a.c. on D3/D4
6:02:05
|
Step 1 Forced servo operation of outlet DO1
OFF ON ON => 24 V a.c. on X1/X2
6:02:06
|
Step 2 Forced servo operation of outlet DO2
OFF ON ON => 24 V a.c. on X3/X4
6:02:07
|
Step 3 Forced servo operation of outlet DO3
OFF ON ON => 24 V a.c. on X5/X6
6:02:08
AKC 24W Version 4.4X Menu operation RC.1J.C4.02 © Danfoss 09/95 15
|
Step 4 Forced servo operation of outlet DO4
OFF ON ON => 24 V a.c. on X7/X8
6:02:09
|
Step 5 Forced servo operation of outlet DO5
OFF ON ON => 24 V a.c. on Y1/Y2
6:02:10
|
Step 6 Forced servo operation of outlet DO6
OFF ON ON => 24 V a.c. on Y3/Y4
6:02:11
|
Step 7 Forced servo operation of outlet DO7
OFF ON ON => 24 V a.c. on Y5/Y6
6:02:12
|
Alarm Out Forced servo operation of alarm outlet
OFF ON ON => Relay switch closed = no alarm (0 V on Y7/Y8)
6:02:13
16 Menu operation RC.1J.C4.02 © Danfoss 09/95 AKC 24W Version 4.4X
Alarm messages The following readouts are only visible if there is an active error
A or B in brackets show in which regulation an active error is recorded.
When the error is corrected, the error message can be removed by pressing ENTER.
S1 Error ( ) S1 sensor error Check sensor connection/sensor resistance
S2 Error ( ) S2 sensor error Check sensor connection/sensor resistance
S3 Error S3 sensor error Check sensor connection/sensor resistance
S4 Error S4 sensor error Check sensor connection/sensor resistance
P0 Error ( ) Pressure Check connections
transmitter error
Paux Error Pressure Check connections
transmitter error
NTC Error TQ ( ) NTC sensor error Check sensor connection/sensor resistance
in TQ actuator
Standby Mode Control stopped Function switch (Main switch) is either in pos. "Controller stopped" or
"Service" (cf. 2:02:01)
Time for Compr. ( ) Service information The operating time set for the compressor has been reached.
Inspection Plan service
Rfg. Type change Changed Check chosen refrigerant. Regulation with changed refrigerant not possible
after power Up refrigerant before the controller has been de-energized
Rfg. Type No selection of Select refrigerant (2:04)
Not selected refrigerant
Too high Media Too high
temperature media tempetature
Cut off below Low temp. Wait for temperature rise
Limit temp. Risk of frost
Safety ( ) Cutout Cut-out in safety Check safety automatic
circuit
Max step A > Programming Correction of data in 3:04:09/3:04:10
Max step error
Adj. Error TQ ( ) Setting error Check if P0 is measured by AKS 32
AKS 32 not ON
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alternations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respecitve companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
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Danfoss Controller type AKC 24W for controlling water chillers. Vers. 4.4x. AKA 21 Installation guide
- Type
- Installation guide
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