Proxel DTLED User manual

----------- PROXEL ENGINEERING -------------------- www.proxel-bg.com------------------------------ DTLED rev. 1.6/06.201 ------
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DIFFERENTIAL TEMPERATURE CONTROLLER FOR SOLAR SYSTEM
WITH CIRCULATION AND TANK HEATER THERMOSTAT
Model DTLED
USER MANUAL
Description
The unit DTLED can be used to control the operation of
cirlucation pump of a solar system based on temperature
difference between solar (boiler,stove,etc) and water tank.
Also it can control supplementary heatin of water tank up to
a preset temperature.
Features:
1. Frost and overheat protection of solar and tank.
2. Separate outputs for circulation pump and supplementary
heater of up to 5A.
3. Monitors two temperatures.
4. Fast and easy pro rammable - 4 main settin s and one user defined parameter.
5. Modes of operation - „Auto” /”Holliday” easily selectable by a slide switch at front panel.
6. „Eco function” – postponds the heater activation if solar is active (if “there is sun” the
supplementary heater is switched off) – this mode can activated/deactivated by by user
at any time.
7. 2 pcs. PTC temperature probes – silicon cable 0.3m –PTC 1k
8. 2 separate Relay outputs for:
- Р1 – SPDT (N.O. +N.C.) contact. Outputs “live” for pump or valve (on and off) controll
- Р2 – SPST (N.O) contact for activation of suplimentary heater
9. LED display with 2 di its and 6 additional LEDs for indication.
10. Buttons – 1pcs.
11. Easy setup – each main settin can be selected amon a set of fixed values.
12. Main parameters settin – selectable by chan in jumper location:
- maximal temperature in tank: +65; +75; +85 °C
- frost protection of solar (forced activation of pump): -25; -10; +5 °C
- minimal temperature of solar to enable circulation based on dT: +40; +50 °C
13. Settin of dT (differential temperature – solar to tank) by a knob – fine : from 3 to 25°C
14. Settin of tank temperature (supplementary heatin ) – usin push button on front
panel: startin +25°C up to maximal temperature allowed in 5°C step;
15. Manual test/activation of pump – holdin the push button on front panel.
ЕСELECTRICAL WIRING
- Power supply 220V AC – internal and pump – term. 21 (Live in “L”) / 18 („N”-neutral)
- Pump output (N.O) – term. 19 (Live output) / 17 („N”-Neutral)
- Supplimentary heater (N.O.)– temr. 16 and 15 -5A max
* Additional external fuse should e connected to term.21 of up to 6A.
- Sensors
TS1 – term.5,6 – tank temperature TS2 – term 7,8 – solar tempetature.
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OPPE
RATION
Front pannel:
- “1” – LED indicator of tempetature (2 di its). Mostlly displays tank t° and each 10 sec. displays
solar t° for 2 sec. (if tank t° is displayed LED#6 is ON, if solar t° is displayed LED#9 is ON).
- “2” – slide switch for mode selection („Auto” / „HOLLIDAY”)
- “3” – push button
- LED “4” – if “On”, the displayed value is over 100°C. (if display=’25’ and LED#4 is ON means
t° =123°C)
- LED “5” – if “On”, ne ative displayed value (if display=’10’ and LED#5 is ON - t° = -10°C)
- LED “6” – if “On” displayed value is for tank tank temperature. If blinks – possible probe failure
- LED “7” – if “On” – pump is active
- LED “8” – if “On” – heater is active
- LED “9” – if “On” – displayed value is for solar temperature. If blinks – possible probe failure.
- If LED 9 and LED 8 blinks alternatively – dT value is displayed
Button operation:
1. When pressed shortly, the followin information is displayed sequentially:
- boiler and solar temperatures - automatically alternatin each 3 sec.
- differential temperature (dT) settin . The temperature is alternated with the symbols "dt";
- maximal allowed temperature in the tank. The temperature alternates with the symbols
"bH";
- Minimal temperature of solar to enable circulation. The temperature alternates with the
symbols "cS" (Collector Start);
- Temperature settin for anti freezin protection. The temperature is alternated with the
symbols "cd" (Collector Defrost);
2. When pressed and holded for 3-4 seconds displays/chan es the temperature of the tank’s
thermostat. The temperature alternates with "bt" / "bE" (Standard / Eco tank thermostat);
- Each subsequent pressin increases the set temperature by 5 de rees. If the set
maximum temperature in the tank is exceeded, the value returns to 15 ° C.
- Switchin between standard and Eco tank thermostat is cyclical, each time when the
maximal tank temperature is exceeded. The symbols chan es "bt" to "bE" and the mode is
chan ed also.
3. When pressed and holded for more than 10 seconds, the pump is manually activated – as
lon the button is pressed;
* To return to the basic mode leave the device without pressin the button for 1 minute.
Choosing an operation mode
- for normal operation "Auto mode" - move the slider to the "left" to position “Auto”
- to operate in holyday mode “vacation” mode - move the slider to the "ri ht"
Faulty sensor alarm - the correspondin indicator "6" or "9" blinks rapidly.
To chan e most settin s, you need to remove the product’s cover

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USAGE
Function Differential thermostat
Monitors the temperatures in the tank and collector, controls output "R1 - circulation pump"
„Auto” mode
Monitorin tº in the tank and collector
When both [tºcollector > tºtank + dT + 2ºC] and [tºcollector >T.CollectorStart] are
true, the circulation pump is activated till [tºcollector> tºtank + dT - 2ºC] or tº colector
falls below the T.CollectorStart.
„Vacantion” mode
- Durin enou h sunshine – it operates same way as in "Auto" mode
- Activation of Circulation when [tºcollector < tºtank -10 ºC ] to cool the tank up to 40 ºC
Build in Protections:
- Freezin of collector: when the tºcollector is lower than T.collector Defrost - 2ºC, the
pump is activated to raise the tºcollector above T.collector Defrost + 2ºC, but only if the
tºtank > 8ºC
- Overheatin of the tank: when the [tºtank > T.Boiler Max] is reached, the circulation is
disabled – unconditionally
- Overheatin of collector: when [tºcollector>100 ºC] and [tºtank < T.BoilerMax] are
reached, the pump is activated until tºcollector falls below 100 ºC
- Hi h temperature (overheat recovery): When tºcollector reaches a ran e of 110-140 ºC
and tºtank <T. Boiler MAX, the circulation is activated at short intervals of 1 sec. every 20
seconds - to slowly reduce the collector temperature. If tºcollector exceedes over 140°C,
the circulation is strictly forbidden to protect the system from heat shock.
- Pump blocka e: automatic forced activation for 60 sec. every 7 days of inactivity
Monitors temperatures in the tank and controls the output "R2 - Heater"
„Auto”mode
If tº tank < T.Boiler Thermostat , the output "R2 - Heater" is activated
“Tank thermostat and Eco function is OFF”
“R2-Heater” output is activated once it is necessary.
"Tank thermostat – and Eco function enabled"
Eco function:
Durin enou h sunshine and operation of the pump, the activation of the "R2 -Heater"
output is postponed for 15 minutes after the last activation of the pump.
„Vacantion” mode
The "R2 - Heater" output is not activated except for frost protection
Protection:
of freezin of the tank: if tºtank oes below 8°C, the "R2 -Heater" output is activated to
heat up the tank
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----------- PROXEL ENGINEERING -------------------- www.proxel-bg.com------------------------------ DTLED rev. 1.6/06.201 ------
TECHNICAL DATA
Power supply: 230V±10% / 0Hz. ≤ 2VА Instalation on DIN rail 3 mm; to be incorporated
Enviroment: -2 T4 , RH80%
Storage and transportation -30/+60 º C
Overall dimentions 68x8 x 8 mm.
Protection casing IP20
Sensors: durability 200 ºC
Measurment and display: -40ºC÷199 ºC;
Accuracy ±1ºC in range (- ºC ÷ +100 ºC);
±4ºC not in range
Outputs:
-Relay R1 - 220V - A or 180W/AC3 (motor)
-Relay R2 - 220V - А or 180W/AC3 (motor)
Two independent relay contacts!
Instalation and commusioning
This device is designed to be incorporated in apartment electrical box with size of 4 or more poles or a cabinet and
can be attached on 3 mm DIN rail. Assembly outside of the board is unacceptable.
Initial setup routine:
1. Turn off the power supply
2. Open the top of the body of the product by pushing the locking tabs on both sides of the
base.
3. Adjust the basic parameters according to the enclosed instruction.
4. Place the top cover until it is fully attached to the base
Att ntion!
Dang r of l ctric shock!
All activiti s involving installation and commissioning should b don whil l ctric pow r is off
.
Att ntion! To control tank’s h at r it is n c ssarys to add an xt rnal commutator
(pow rfull r lay) controll d by th th rmostat’s output and to k p all th prot ctiv
and switching l m nts provid d by th tank manufactur r (switch, th rmostat,
th rmal prot ction)!
DTLED is not a prot ctiv d vic within th m aning of EN60730-1-Ann x
Att ntion!
Th supply of th "Phas -La"
pow r supply to th d vic is
carri d out through a fus :
Class B 6A max. on t rminals
no. 21 and no. 16
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WARRANTY THERMS AND CONDITIONS:
The warranty period of the product is 24 months from the day of sale or installation by the installer but no more
than 30 months from the date of manufacture. The warranty covers defects attributable to the manufacturer
(manufacturing defects or defective materials). They are not subject to warranty defects in the product or damage to
other equipment as a result of improper or unskilled installation, improper workflow selection and / or adjustment,
unauthorized change of the product, natural disasters, non-standard power supply, improper storage or
transportation.
Тук гаранционна карта на английски прилага ли се???????
Table for diagnostic of temperature inputs
T mp ratur -r sistanc -voltag tabl of s nsor inputs KTY81-1К
TºC -40 -3 -30 -2 -20 -1 -10 - 0 10 1 20
R -[Ω] 67 602 624 6 3 684 714 747 780 81 849 886 922 961
Uвх-[V] 1.37
1.43 1.47 1.52 1.57 1.61 1.66 1.71 1.76 1.81 1.86 1.90 1.95
TºC 2 30 3 40 4 0 60 6 70 7 80 8
R- [Ω] 1000 1040 1081 1122 116 1209 12 4 1299 1346 1392 1441 1490 1 41
Uвх-[V] 2.00
2.05 2.09 2.14 2.19 2.23 2.28 2.32 2.36 2.41 2.45 2.49 2.53
TºC 90 9 100 10 110 11 120 12 130 13 140 14 1 0
R- [Ω] 1 91 1643 1696 17 0 1806 1861 191 1970 2023 207 2124 2172 2211
Uвх-[V] 2.57
2.61 2.65 2.69 2.73 2.77 2.80 2.84 2.87 2.90 2.93 2.96 2.98
Warranty card
Pl as compl t ly fill this card for valid guarant
Manufactur r: Prox l Engin ring Ltd Typ : T mp ratur controll r DTLED
Plovdiv, Bulgaria, [email protected]
S rial numb r: Data of manufactur :
............................. .................................
S ll r/Install r:.............................................................................................................................
.
Addr ss: ........................................................................................................................................
Dat of (sal ) Instalation: .........................................................................................
Install r/ s ll r :.........................................................................................................
(name and signature )
Instalation is mad by Install r Cli nt
(please mark the true one)
2004/ 08/EC
2006/95/EC