KONVEKTA FR4 Guide

Konvekta AG
Konvekta AGKonvekta AG
Konvekta AG
Am Nordbahnhof 5
34613 Schwalmstadt
Germany
 +49 0 ) 66 91 / 76 – 0
 +49 0 ) 66 91 / 76 - 200
 [email protected]
www.konvekta.com
Instructions for install
Instructions for installInstructions for install
Instructions for installa
aa
ation and
tion and tion and
tion and
se
sese
ser
rr
rvice
vicevice
vice
for control unit
for control unitfor control unit
for control unit
FR4
FR4FR4
FR4
12
12 12
12 -
--
- 24 Volt DC
24 Volt DC 24 Volt DC
24 Volt DC
ID#: 110013962AA
ID#: 110013962AAID#: 110013962AA
ID#: 110013962AA-
--
-a02
a02a02
a02
Valid from 08
Valid from 08Valid from 08
Valid from 08/200
/200/200
/2008
88
8

110013961AA date of change: 18.08.2008 page: 2/19
Contents
ContentsContents
Contents
page
1
11
1 Technical data
Technical dataTechnical data
Technical data of control unit
of control unit of control unit
of control unit ................................
................................................................
................................................................
................................................................
................................................................
................................................................
.......................................................
..............................................
....................... 3
33
3
2
22
2 General description of the control unit
General description of the control unitGeneral description of the control unit
General description of the control unit................................
................................................................
................................................................
................................................................
................................................................
................................................................
.......................................
..............
....... 4
44
4
2.1 LED-display ...............................................................................................................................................................4
2.2 Programming Menu.................................................................................................................................................4
2.3 Connecting and Safety instructions.....................................................................................................................5
2.4 Functions of buttons...............................................................................................................................................6
2.5 Factory setting / delivery state FR4.....................................................................................................................6
3
33
3 Switching
SwitchingSwitching
Switching-
--
-on the unit
on the uniton the unit
on the unit ................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
......................................
............
...... 7
77
7
3.1 Switching-on the refrigeration unit by button [U] of FR4.............................................................................7
3.2 Indication and change of setpoint........................................................................................................................7
3.3 Sampling of operating hours .................................................................................................................................8
3.4 Sampling of operating hours since last service ................................................................................................8
3.5 Sampling of the temperature values of room sensor and evaporator sensor..........................................8
4
44
4 Faults
FaultsFaults
Faults –
––
– indications and signals
indications and signalsindications and signals
indications and signals ................................
................................................................
................................................................
................................................................
................................................................
................................................................
......................................................
............................................
...................... 8
88
8
5
55
5 Adjustment of
Adjustment of Adjustment of
Adjustment of P
PP
Parameters in the
arameters in the arameters in the
arameters in the m
mm
men
enen
enu
uu
u................................
................................................................
................................................................
................................................................
................................................................
................................................................
.......................................
..............
....... 9
99
9
5.1 Example for change of a parameter, here parameter defrost interval “di nt”..........................................9
5.2 Conversion to cooling with recirculated air defrosting / or replace a FR1, FR2 or FR3.......................9
5.3 Conversion to cooling – heating with hotgas – defrosting with hotgas.................................................. 10
6
66
6 Control of defrosting
Control of defrostingControl of defrosting
Control of defrosting................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................................................
....................................
........
.... 10
1010
10
7
77
7 Configuration of the parameters with “FR 4
Configuration of the parameters with “FR 4 Configuration of the parameters with “FR 4
Configuration of the parameters with “FR 4 c
cc
copy
opyopy
opy-
--
-k
kk
key”
ey”ey”
ey” ................................
................................................................
................................................................
................................................................
.........................................
..................
......... 11
1111
11
8
88
8 Logi
LogiLogi
Logic
cc
c >>
>> >>
>> Explanations for the functions of the control conditions
Explanations for the functions of the control conditionsExplanations for the functions of the control conditions
Explanations for the functions of the control conditions................................
................................................................
.......................................................
..............................................
....................... 12
1212
12
8.1 Cooling and defrosting with hot gas >> delivery state FR4 ............................................................... 12
8.2 Cooling and defrosting with recirculated air >> see changes in parameters point 5.2....................... 12
8.3 Neutral zone cooling + heating with hot gas) and defrosting with hot gas >> see changes in
parameters point 5.3. .......................................................................................................................................... 12
9
99
9 Connection diag
Connection diagConnection diag
Connection diagram
ramram
ram a
aa
and
nd nd
nd p
pp
parameter
arameterarameter
arameter chart
chart chart
chart ................................
................................................................
................................................................
................................................................
................................................................
................................................................
................................ 13
1313
13
9.1 Connection diagram ............................................................................................................................................ 13
9.2 Parameter chart.................................................................................................................................................... 13

110013961AA date of change: 18.08.2008 page: 3/19
1
11
1Technical data
Technical dataTechnical data
Technical data of control unit
of control unit of control unit
of control unit
Type / operating voltage
Type / operating voltageType / operating voltage
Type / operating voltage:
::
: KONVEKTA
KONVEKTA KONVEKTA
KONVEKTA part no.
part no.part no.
part no.:
::
:
FR4 / 12 – 24 V H11-001-396
Housing
HousingHousing
Housing:
::
:.................................................................. UL 94 V0 plastic material
Dimensions
DimensionsDimensions
Dimensions:
::
:........................................................... frontal: 78x35 mm; depth: 64 mm
Mounting
MountingMounting
Mounting:
::
: ............................................................... panel mounting in a 29x71 mm panel cut-out
Frontal protection
Frontal protectionFrontal protection
Frontal protection:
::
:............................................... IP65 with sealing
Connections
ConnectionsConnections
Connections:
::
: ......................................................... Screw terminal block ≤ 2,5mm
2
wiring
Power supply
Power supplyPower supply
Power supply:
::
: ................................
................................................................
.......................................
..............
....... 12 – 24 V AC/DC, -10%, +10%
Power consumption
Power consumptionPower consumption
Power consumption:
::
: ........................................... 3 VA max.
Display
DisplayDisplay
Display:
::
: ................................................................... 4-digit, blue LED, height 12mm
Inputs
InputsInputs
Inputs:
::
: ................................................................ 2 x PTC-sensor
Rela
RelaRela
Relay outputs
y outputsy outputs
y outputs:
::
:
c
cc
compre
ompreompre
ompressor:
ssor:ssor:
ssor: ................................................. Relay NOC normally open contact) 16 A
defrost
defrostdefrost
defrost:
::
: ....................................................... Relay change-over contact 8 A
fans
fansfans
fans:
::
: .......................................................... Relay NOC normally open contact) 5 A
D
DD
Data storage
ata storageata storage
ata storage.......................................................... non-volatile memory EEPROM)
Operating
Operating Operating
Operating temperatur
temperaturtemperatur
temperature
ee
e:
::
: ..................................... 0..50°C
Storage t
Storage tStorage t
Storage temperatur
emperaturemperatur
emperature
ee
e:
::
: .......................................... -10..60°C
H
HH
Humidity
umidityumidity
umidity:
::
:................................
................................................................
.............................................................
..........................................................
............................. 10 to 95% without condensation)
Measuring range sensor
Measuring range sensorMeasuring range sensor
Measuring range sensor PTC NTC):
PTC NTC): PTC NTC):
PTC NTC): ............. -50 to 150°C -50 to 109°C)
Resolution
ResolutionResolution
Resolution:
::
:............................................................. 1°C or 1°F
Accuracy
AccuracyAccuracy
Accuracy:
::
:................................................................ ±0,5%

110013961AA date of change: 18.08.2008 page: 4/19
2
22
2General description of the control unit
General description of the control unitGeneral description of the control unit
General description of the control unit
Model FR4
FR4FR4
FR4 is an electronical control unit 78x35mm) suitable for applications on medium or low tempera-
ture refrigeration units, which has three relay outputs to control compressor, defrost and evaporator
blower as well as two PTC-/NTC-sensor-inputs in order to measure the room temperature and evapora-
tor temperature. Defrosting can be recirculation air as well as hot-gas defrosting. The blower can be acti-
vated during defrosting upon request. The sensor is suitable for refrigeration. The control unit FR4 is suit-
able for refrigeration as well as heating applications only hot-gas heating). Supply voltage may be between
10 and 28V.
The following functions can be adjusted:
•room temperature „only refrigeration“ or „refrigeration and heating with hot gas “)
•automatic defrosting hot gas or recirculating air)
•manual defrosting hot gas or recirculating air)
⇒Faults are shown in the display via flashing indication see point 4).
This present instructions for installation and service is amended by the „operating
instructions for refrigeration units“, KONVEKTA no: BBA-FR4-2AA.
2.1 LED-display
The display shows information about the current control mode via different LED.
The functions are listed as follows:
LED
LEDLED
LED STATUS
STATUSSTATUS
STATUS FUN
FUNFUN
FUNCT
CTCT
CTION
IONION
ION
Comp illuminated compressor is active
Comp blinking minimum off-duration of compressor is active
Fan illuminated Blowers active
Def illuminated defrosting active
Def blinking Manual defrosting active
OK illuminated function OK, no fault active
2.2 Programming Menu
The programming menu includes all parameters of the unit Service
Service Service
Service level
levellevel
level!).
!). !).
!). For this level you need a
password , see example in point 5.1.

110013961AA date of change: 18.08.2008 page: 5/19
2.3 Connecting and Safety instructions
-
--
- Please read before connecting
Please read before connectingPlease read before connecting
Please read before connecting!
! !
! -
--
-
•For safety reasons the control unit FR4
FR4 FR4
FR4 shall not be used for applications different from those described
in this manual.
•Before use please check the limits of this control unit as well as its applications.
Safety instructions
Safety instructionsSafety instructions
Safety instructions
Before connecting the unit please check wether the supply voltage is correct. Please pay attention to the
prescribed ambient conditions respectively their humidity and temperature limits. Should these conditions
not be followed, malfunctions can not be excluded.
Attention
AttentionAttention
Attention:
::
:
Before switching-on the unit, please check once again correct connection.
Never run this unit without housing.
Please install the sensor where it is not accessible for the end customer
Please consider the maximum current which can be applied to each relay see technical data / point 1).
Please ensure that all sensors are installed with enough distance to under-voltage cables. By this, distorted
temperature measurements can be avoided and the unit is protected from voltage interspersion by the
sensor-inputs.
Installation
Installation Installation
Installation a
aa
and
nd nd
nd mounting
mountingmounting
mounting
The control unit FR4
FR4FR4
FR4 shall be mounted on panel in a 71x29 mm
71x29 mm71x29 mm
71x29 mm hole and fixed by the fastening frame.
For a faultless operation the ambient temperature should be between 0 und 50 °C. Please avoid intense
vibration, aggressive gases, high fouling or humidity.
You have to care for enough air circulation at the air slots.
Ele
EleEle
Elec
cc
ctr
trtr
trical
icalical
ical co
coco
connections
nnectionsnnections
nnections
The control unit FR4
FR4FR4
FR4 is provided with screw terminals for a wire diameter of ≤ 2,5mm
2
. Before voltage
supply is connected please make sure that the auxiliary energy complies with the instrument’s require-
ments. Please ensure that the inlet cables are installed with enough distance to under-voltage cables.
Do not exceed the maximum voltage allowed on each relay.
Sensor
SensorSensor
Sensor connections
connectionsconnections
connections
The sensor peak should be mounted upwards in order to avoid accumulation of liquids or condense wa-
ter. We recommend to place the thermostat away from air flow in order to have a correct measurement
of the average room temperature.
These instructions contain all necessary information for installation of the control unit. In case you need
further information respectively explanation our technical after-sales service will be at your disposal
℡06691/76 –124, or  [email protected]om).
In the course of further developments we reserve the right to technical modifications without prenotice.
Guarantee and liability conditions of Konvekta AG’s general business conditions are not enlarged by the
above notes. Indications and photos should neither be copied and circulated nor used for competitor’s
purposes. All rights according to the copyright remain expressly reserved.
Manufacturer: KONVEKTA AG,
KONVEKTA AG, KONVEKTA AG,
KONVEKTA AG, P.O. Box
P.O. BoxP.O. Box
P.O. Box 2280, 34607 Schwalmstadt
2280, 34607 Schwalmstadt 2280, 34607 Schwalmstadt
2280, 34607 Schwalmstadt, Germany
, Germany, Germany
, Germany

110013961AA date of change: 18.08.2008 page: 6/19
2.4 Functions of buttons
The control unit FR4
FR4FR4
FR4 has four buttons:
[UP] - Scrolls through the positions of
the menu
- raises the values
- switching-on of manual defrosting
[DOWN] - Scrolls through the positions of the menu
- lowers the values
- sampling of operating-hour counter
- sampling of service-hour counter
[U] - ON / OFF button
- sampling of temperatures at room sensor and evaporator sensor PR1 – PR2)
[P] - access to setpoint
- access to menus
- confirmation of commands
Setting of temperature setpoint
Setting of temperature setpointSetting of temperature setpoint
Setting of temperature setpoint:
::
:
Indication of temperature
Indication of temperature Indication of temperature
Indication of temperature setpoint
setpointsetpoint
setpoint
Press button [P]. The display shows alternately „SP 1” and the current adjusted setpoint.
Change of the setpoint
Change of the setpointChange of the setpoint
Change of the setpoint:
::
:
To change the setpoint you have to press button [UP] or [DOWN] within 15 seconds until
the desired setpoint is indicated. Confirm with [P].
A
AA
Attention
ttentionttention
ttention:
: :
:
The new value will be automatically adopted and stored if it is not confirmed within 15 sec-
onds.
2.5 Factory setting / delivery state FR4
Delivery state/factory setting of control unit FR4 will be as follows:
Refrigeration with hot-gas defrosting! see point 7.1. on page 11)
Refer to the Konvekta set values in column „Def.” from the enclosed parameter list see point 8
page 12 to 18)!

110013961AA date of change: 18.08.2008 page: 7/19
3
33
3Switching
SwitchingSwitching
Switching-
--
-on the unit
on the uniton the unit
on the unit
Analog to operating instructions no. BBA-FR4-1AA)
3.1 Switching-on the refrigeration unit by button [U] of FR4
Press button [U] for 3 seconds. The display shows “PR2” blinking; afterwards the current room tempera-
ture will be indicated.
3.2 Indication and change of setpoint
Press button [P] once, alternately blinking appear „SP1“ >> setpoint.
Now you can change the setpoint using the arrow keys -30 to +30°C)
Now press button [P] once and the new value will be stored.
A
AA
Attention
ttentionttention
ttention:
: :
:
The new value will be automatically adopted and stored if it is not confirmed within 15 sec-
onds.
In refrigeration operation the room temperature is indicated, LED’s for compressor „Comp“ and fans
„Fan“ are illuminated.
Drive operation
Drive operationDrive operation
Drive operation Stand
StandStand
Stand-
--
-by operation
by operationby operation
by operation
•start vehicle engine
see original operating instructions of the vehi-
cle)
•For units with additional stand-by operation
230V/400V) you only have to plug in the power
plug for stand-by refrigeration.
compressor ON
evaporator/condensor
-
blower activ
e
Mains operation:
Plug in power plug

110013961AA date of change: 18.08.2008 page: 8/19
ATTENTION
ATTENTIONATTENTION
ATTENTION:
::
:
The factory setpoint is
The factory setpoint is The factory setpoint is
The factory setpoint is 1°C.
1°C.1°C.
1°C.
This setpoint has to be adapted to the storage
This setpoint has to be adapted to the storage This setpoint has to be adapted to the storage
This setpoint has to be adapted to the storage temperatur
temperaturtemperatur
temperature of the transport
e of the transport e of the transport
e of the transport
goods
goodsgoods
goods!
!!
!
ATTENTION
ATTENTIONATTENTION
ATTENTION:
::
:
The factory minimal setpoint
The factory minimal setpointThe factory minimal setpoint
The factory minimal setpoint „SPLL
„SPLL „SPLL
„SPLL”
””
” is adjusted to
is adjusted to is adjusted to
is adjusted to -
--
-30°C.
30°C.30°C.
30°C.
In case of use as a
In case of use as a In case of use as a
In case of use as a chill
chillchill
chilling unit the p
ing unit the ping unit the p
ing unit the parameter „SPLL
arameter „SPLLarameter „SPLL
arameter „SPLL”
””
” has to be adjusted to
has to be adjusted to has to be adjusted to
has to be adjusted to 0!
0!0!
0!
3.3 Sampling of operating hours
Switch-on control unit FR4 with button [U].
Press button once. Now the total operating hours of the refrigeration unit will be indicated for
approx. 5 seconds.
3.4 Sampling of operating hours since last service
Switch-on control unit FR4 with button [U].
Press button twice. Now the operating hours of the refrigeration unit
since the last service are indicated for approx. 5 seconds.
3.5 Sampling of the temperature values of room sensor and evaporator sensor
Press button [U] once; the display shows alternately blinking „PR 2” and the measured evaporator tem-
perature. By pressing button [U] once again, „PR 1” is indicated in the display alternately blinking with the
measured room temperature.
After 15 seconds the display switches back to the current room temperature.
4
44
4Faults
FaultsFaults
Faults –
––
– indications and signals
indications and signalsindications and signals
indications and signals
The display shows faults by blinking indication.
If there is a fault, no control is possible!
Indication
IndicationIndication
Indication Description
DescriptionDescription
Description Fault s
Fault sFault s
Fault source
ourceource
ource
”E1” Fault with room sensor Cable rupture or sensor short-circuit
”E2” fault with evaporator sensor Cable rupture or sensor short-circuit

110013961AA date of change: 18.08.2008 page: 9/19
5
55
5Adjustment of
Adjustment of Adjustment of
Adjustment of P
PP
Parameters in the
arameters in the arameters in the
arameters in the m
mm
men
enen
enu
uu
u
The single parameters are classified in groups:
a) Group
]
SP parameter concerning set point)
b) Group
]
InP parameter concerning measuring inlets)
c) Group
]
reG parameter concerning temperature control)
d) Group
]
dEF parameter concerning defrost process)
e) Group
]
FAn parameter concerning fans/blowers)
f) Group
]
PrC parameter concerning switch-on delay / evaporator protection)
You will find the explanations to the single parameters in point 8
88
8 from page 13
13 13
13.
..
.
Access to menu is secured by a password
Access to menu is secured by a passwordAccess to menu is secured by a password
Access to menu is secured by a password!
!!
!
5.1 Example for change of a parameter, here parameter defrost interval “di nt”
For selecting the menu please press and hold button [P]. “SP 1” is blinking in the display. After 5 seconds a „0“
appears. By pressing buttons and the password „213
213213
213“ is set. Now press button [P] once, in order to
confirm the password.
The display now shows the term of the first group „
]
SP“. By pressing buttons
and the other groups
can be selected, by pressing button [P] the respective group is opened.
In order to change the defrosting intervals please browse with buttons and , until group „
]
dEF“
appears in the display. By pressing button [P] you open this group. First the display shows parameter „dtyP“
blinking. By pressing buttons
and you can choose paramenter „di nt“; parameter „di nt“ is now blink-
ing in the display. By pressing button [P] once, the current setting is shown, “di nt” and the adjusted value
“1,30” are blinking alternately. Now the value can be changed. The new value is stored by leaving the pa-
rameter. You can leave the parameter with button
. If you press button
longer, the menu switches
back to the groups, afterwards you can leave the menu by pressing this button longer once again.
5.2 Conversion to cooling with recirculated air defrosting / or replace a FR1, FR2 or FR3
Contrary to the factory setting „cooling with hot-gas defrosting”, the following parameters have to be
changed:
-parameter „dtyP“ in group „
]
dEF“ has to be changed from „in“ to „FdE“
-parameter „tdCO“ in group „
]
dEF“ has to be changed from „1“ to „off“
-parameter „Fd“ in group „
]
FAn“ has to be changed from „1“ to „off“
-If no evaporator sensor has been installed e.g. replace
replacereplace
replace FR1
FR1 FR1
FR1) the parameter „PR 2“ in group
„
]
InP“ has to be changed from „on“ to „off“
If you replace a FR1, FR2 or FR3 with the FR4 and the external ON-OFF-button should be used further-
more or further instruments such as temperature recorder or heating should be switched on together with
the FR4 by an external button, you have to
-change parameter „Usrb“ in group „
]
Pan“ from „4“ to „OFF“.

110013961AA date of change: 18.08.2008 page: 10/19
5.3 Conversion to cooling – heating with hotgas – defrosting with hotgas
Contrary to the factory setting, the following parameter has to be changed:
-parameter „FunC“ in group „
]
rEG“ has to be changed from „CooL“ to „nr“.
ATTENTION:
ATTENTION:ATTENTION:
ATTENTION:
Parameter
ParameterParameter
Parameter „FunC“
„FunC“ „FunC“
„FunC“ should only be changed from
should only be changed from should only be changed from
should only be changed from „CooL“
„CooL“ „CooL“
„CooL“ to
toto
to „nr“
„nr“ „nr“
„nr“ if a fluid e
if a fluid e if a fluid e
if a fluid ex-
x-x-
x-
tr
trtr
tractor is i
actor is iactor is i
actor is in
nn
nstalled in the suction pipe of the refri
stalled in the suction pipe of the refristalled in the suction pipe of the refri
stalled in the suction pipe of the refrig
gg
geration unit
eration uniteration unit
eration unit!
!!
!
Otherwise risk of damages to compressor.
Otherwise risk of damages to compressor.Otherwise risk of damages to compressor.
Otherwise risk of damages to compressor.
6
66
6Control of defrosting
Control of defrostingControl of defrosting
Control of defrosting
Factory setting of control unit FR4 is hot-gas defrosting. In case of use in refrigeration units with recircu-
lated air defrosting the following parameters have to be changed:
-parameter „dtyP“ in group „
]
dEF“ has to be changed from „in“ to „FdE“
-parameter „tdCO“ in group „
]
dEF“ has to be changed from „1“ to „off“
-parameter „Fd“ in group „
]
FAn“ has to be changed from „1“ to „off“
-If no evaporator sensor has been installed e.g. replace FR1
replace FR1replace FR1
replace FR1) the parameter „PR 2“ in group
„
]
InP“ has to be changed from „on“ to „off“
 The preadjusted maximum defrosting duration is 15 minutes.
During defrosting process „dEF” is indicated and the LEDs „Def” and „Comp”
are illuminated.
After the end of defrosting there is 1 minute drip-off time. Display shows „PdEF“.
The LEDs „Comp” and „Fan” are blinking.
Recommended defrosting inte
Recommended defrosting inteRecommended defrosting inte
Recommended defrosting inter
rr
rvals:
vals:vals:
vals:
Fresh meat and cheese: 1:00 hours
Dairy product: 2:00 hours
Deep freezing products: 3:00 hours
Pre
PrePre
Pre-
--
-adjustment:
adjustment:adjustment:
adjustment: 1:30
1:30 1:30
1:30 hours
hourshours
hours