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OPERATING AND
INSTALLATION MANUAL
SCREW-MOUNTED ELECTRICAL HEATING
Družstevní závody Dražice - strojírna s.r.o.
Dražice 69, 294 71 Benátky nad Jizerou
Phone.: +420 /326 370 990
Fax: +420 / 326 370 980
E-mail:
export@dzd.cz
UNIT
TJ 6/4" E – 3,3 kW
TJ 6/4" E – 3,75 kW
TJ 6/4" E – 4,5 kW
TJ 6/4" E – 6 kW
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Table of Contents
Related Manuals for Nibe DRAZICE TJ 6/4 E-3,3 kW
Summary of Contents for Nibe DRAZICE TJ 6/4 E-3,3 kW
- Page 1 OPERATING AND INSTALLATION MANUAL SCREW-MOUNTED ELECTRICAL HEATING UNIT TJ 6/4" E – 3,3 kW TJ 6/4" E – 3,75 kW TJ 6/4" E – 4,5 kW TJ 6/4" E – 6 kW Družstevní závody Dražice - strojírna s.r.o. Dražice 69, 294 71 Benátky nad Jizerou Phone.: +420 /326 370 990 Fax: +420 / 326 370 980 E-mail:...
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Page 2: Table Of Contents
CONTENTS PRODUCT TECHNICAL SPECIFICATION ....................... 4 FUNCTION DESCRIPTION ........................4 DESCRIPTION OF ACTIVITY......................... 4 VOLTAGE ............................4 SIGNALLING ............................4 ADVICE FOR CUSTOMERS ........................4 DESIGN AND GENERAL HEATER DIMENSIONS ................... 5 OPERATION AND FITTING INSTRUCTIONS ....................7 ASSEMBLY ............................7 ELECTRICAL INSTALLATION ........................ - Page 3 CAREFULLY READ THIS MANUAL BEFORE INSTALLING THE PRODUCT ACCESSORIES! Dear customer, Družstevní závody Dražice - strojírna s.r.o., would like to thank you for your decision to use a product of our brand. The product is not intended to be controlled by a) people (including children) with reduced physical, sensual, or mental capacities, or b) people with insufficient knowledge and experiences unless supervised by responsible person, or unless properly instructed by such responsible person.
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Page 4: Product Technical Specification
1 PRODUCT TECHNICAL SPECIFICATION FUNCTION DESCRIPTION The screw-mounted electrical heating unit (heating unit) is designed exclusively for water heating. It is designed as an additional heating source in water heaters connected in a system with solar collectors. It can also be used as an additional source of heating in accumulation tanks. If the installation requirements are obeyed, it can be used as the main source of heating by a heater, or for other purposes. -
Page 5: Design And General Heater Dimensions
DESIGN AND GENERAL HEATER DIMENSIONS The heating unit consists of an electrical heating element with a connecting thread G 6/4“and a cover. (Figure 1). Underneath the wiring cover there is a printed circuit board (PCB) of the control with connection terminals and signals and a safety thermostat. - Page 6 °C 3 PE-N AC TJ 6/4“ E – 3,3 kW 3 x 10 IP 44 5 - 74 400 V/50Hz 2 PE-N AC 1 PE-N AC 3 PE-N AC TJ 6/4“ E – 3,75 kW 3,75 3 x 10 IP 44 5 - 74 400 V/50Hz 2 PE-N AC...
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Page 7: Operation And Fitting Instructions
2 OPERATION AND FITTING INSTRUCTIONS ASSEMBLY The heating unit shall be mounted in the heater's neck. The end of the thread is provided with a rubber seal. To ensure better tightness we recommend the screw joint being additionally sealed with cannabis, a Teflon sealing tape or a mastic sealant (be careful – choose a mastic sealant suitable for demountable joints). -
Page 8: Electrical Installation
ELECTRICAL INSTALLATION 2.2.1 BASIC INFORMATION FOR ELECTRICAL INSTALLATION Run the supply cord through the bushing and connect accordingly with the scheme for the heating unit. Run the control cable through the gland and connect according to the diagram (Figure 4). The heating unit is connected to the 400 V (230 V)/50 Hz mains by a fixed connection with a conductor of the appropriate cross-section and the appropriate fuse for the power rating of the heating element. -
Page 9: Application Diagram
2.2.3 APPLICATION DIAGRAM: Model design of possible control Figure 5 2.2.4 WIRING DESCRIPTION Terminals on PCB Power supply 400 VAC PE – earth (yellow/green wire) N – working zero (blue wire) L1 – phase 1. (brown wire) L2 – phase 2. (black wire) L3 –... -
Page 10: Heating Unit Operation
Power supply The heater is connected to the 3x 230 V (400 V)/50 Hz power grid using a fixed moving cable in which a circuit breaker (and possibly a current protector) is fitted. The 5 x 2.5 mm² cable must be tripped with a circuit breaker of appropriate parameters listed in the table (Table 1). -
Page 11: Most Common Faults
MOST COMMON FAULTS FAILURE SYMPTOM SOLUTION The safety thermostat (Thermal fuse) is not self- The indicator light of the reversing, it is triggered when the heater water has unit operation does not cooled down to room temperature. The fuse can then light up. -
Page 12: Installation Regulations
INSTALLATION REGULATIONS When active, both the element and the termowell have to be surrounded with a sufficient amount of water from all sides. Thermo water flow must not be prevented. Mounting positions – horizontal or vertical from under. The length of the 6/4“ neck shall not exceed 70 mm. If longer, the variant with an extended cooling circuit has to be used. -
Page 13: Operating And Fault Conditions, Led Signalling On Pcb
Figure 9 3.1.2 OPERATING AND FAULT CONDITIONS, LED SIGNALLING ON PCB Input on RS3 Contact Heating level, Output Input on RS1 Input on RS2 LED on LED on terminal on, LED on (on cover) LED on (on cover) LED on (on cover) (on cover) (on cove ) S1+S2 on... -
Page 14: Faulty External Contact
3.1.3 FAULTY EXTERNAL CONTACT Is used to signal possible tripping of the emergency thermal fuse. Non-potential contact (open at rest). CAUTION! Interrupting L1 will open the contact and possibly activate a fault. CAUTION! By de-energizing the power supply, the unit may not be de-energized. Make sure that the external control voltage is switched off! SPARE PARTS Always state the type of the heating unit and the name of the spare part when placing an order.