Table of Contents
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Instructions for install
Instructions for installa a a a tion and
Instructions for install
Instructions for install
se se se ser r r r vice
for control unit
for control unit
for control unit
for control unit
FR4
FR4
FR4
FR4
12 12 12 12 - - - - 24 Volt DC
ID#: 110013962AA- - - - a02
ID#: 110013962AA
ID#: 110013962AA
ID#: 110013962AA
Valid from 08
Valid from 08/200
/2008 8 8 8
Valid from 08
Valid from 08
/200
/200
vice
vice
vice
24 Volt DC
24 Volt DC
24 Volt DC
a02
a02
a02
tion and
tion and
tion and
Konvekta AG
Konvekta AG
Konvekta AG
Konvekta AG
Am Nordbahnhof 5
34613 Schwalmstadt
Germany
¥
+49 ( 0 ) 66 91 / 76 – 0
+49 ( 0 ) 66 91 / 76 - 200
Info@konvekta.com
www.konvekta.com
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Summary of Contents for KONVEKTA FR4
- Page 1 12 12 12 12 - - - - 24 Volt DC 24 Volt DC 24 Volt DC 24 Volt DC Konvekta AG Konvekta AG Konvekta AG Konvekta AG Am Nordbahnhof 5 34613 Schwalmstadt Germany ¥...
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Page 2: Table Of Contents
................Switching-on the refrigeration unit by button [U] of FR4................7 Indication and change of setpoint........................7 Sampling of operating hours ..........................8 Sampling of operating hours since last service ....................8 Sampling of the temperature values of room sensor and evaporator sensor ..........8... -
Page 3: Of Control Unit
Type / operating voltage KONVEKTA KONVEKTA KONVEKTA KONVEKTA part no. part no. part no. part no.: : : : FR4 / 12 – 24 V H11-001-396 Housing Housing Housing Housing: : : : ..............UL 94 V0 plastic material Dimensions Dimensions Dimensions Dimensions: : : : ............ -
Page 4: General Description Of The Control Unit General Description Of The Control Unit
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. -
Page 5: Connecting And Safety Instructions
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. -
Page 6: Functions Of Buttons
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: Switching Switching On The Unit
Mains operation: Plug in power plug 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. Indication and change of setpoint Press button [P] once, alternately blinking appear „SP1“... -
Page 8: Sampling Of Operating Hours
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. -
Page 9: Arameters In The M M M M En En En Enu U U U
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“... -
Page 10: Conversion To Cooling - Heating With Hotgas - Defrosting With Hotgas
Control of defrosting Control 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 „... -
Page 11: Configuration Of The Parameters With "Fr 4 C C C C Opy Configuration Of The Parameters With "Fr
3) Make sure that the FR4 copy-key is connected with current supply. 4) Check the LED signal of the FR4 copy-key: The LED should be green; if LED is blinking green or red, no valid configuration has been loaded and it doesn’t make sense to go on. -
Page 12: Explanations For The Functions Of The Control Conditions
Explanations for the functions of the control conditions Explanations for the functions of the control conditions Explanations for the functions of the control conditions Cooling and defrosting with hot gas >> delivery state FR4 Cooling Cooling: : : : Cooling... -
Page 13: Ram A A A A Nd Nd Nd Nd P P P P Arameter
9 9 9 9 Connection diag Connection diagram ram a a a a nd nd nd nd p p p p arameter arameter chart chart Connection diag Connection diag arameter arameter chart chart Connection diagram INPUTS OUTPUTS COMP (OUT1): 16A-AC1 (6A-AC3) / 250 VAC; 1HP 250VAC, 1/2HP 125VAC DEF (OUT2) : 8A-AC1 (3A-AC3) / 250 VAC;... - Page 14 Group InP (parameter concerning measurement inlets) Par. Description Range Def. SEnS Sensor type Ptc - ntc OFS1 Calibration sensor Pr1 (cell) -30 ÷ 30 -1.5 ° C/° F OFS2 Calibration sensor Pr2 (evaporator) -30 ÷ 30 -1.5 ° C/° F Pr 2 Sensor exists Pr2 (evaporator) On - OFF Unit Unit of measurement...
- Page 15 Group dEF (parameter of defrosting control) [refers to Pr2] [defrost cycle „disables“ Pr1] Par. Description Ran- Def. cooling cooling cooling cooling hot-gas recircu- neutral neutral zone defrost- lated air zone heating defrost- heating recirculated hot-gas air defrosting defrost- dtyP Defrosting mode: EL - EL = electrical defrost cycle if defrost cycle is released and starts, then...
- Page 16 Etdu Display unlock difference after finished defrost cycle 30.0 30.0 30.0 30.0 0 ÷ During defrost cycle it is possible that the tempera- ° C/° F ture measured by the cell sensor (Pr1) rises exces- sively (this depends on the position of the sensor Pr1 to the evaporator).
- Page 17 Group FAn (parameter concerning control of cooling fans) [refers to Pr2] Par. Description Ran- Def. COOL COOL cooling cooling cooling cooling neutral neutral zone zone heating heating hot-gas recircu- recirculated defrost- lated air hot-gas air defrosting defrost- defrost- ting control cycle On - Fan state concerning to - temperature Pr2 beyond „fan line“...
- Page 18 Group PrC (parameter of the compressor protection and switch-on delay) Par. Description Range Def. PSC Compressor protection mode: 1 - 2 - 3 1= switch-on delay 2= delay after switching-off 3= delay between switching-on PtC Time compressor protection OFF ÷ 99.59 01.00 min.sec Minimum compressor switch-on duration...
- Page 19 If the programmed value is exceeded, „SEr“ will be indicated in the display for approx. 5 seconds This will be indicated with every switching-on of the FR4, as long as the current value is > than the pro- grammed value rSEc Reset service-hours counter -1999 ÷...
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