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OPERATING AND
INSTALLATION MANUAL
COMBINED WATER TANKS FOR VERTICAL
Družstevní závody Dražice-strojírna s.r.o.
Dražice 69, 294 71 Benátky nad Jizerou
tel.: +420 / 326 370 911
fax: +420 / 326 370 980
e-mail:
export@dzd.cz
MOUNTING
Hot water tanks
2
OKC 125/1 m
2/6 kW
2
OKC 160/1 m
2/6 kW
2
OKC 200/1 m
2/6 kW
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Summary of Contents for Nibe DRAZICE OKC 125/1 m2 2/6 kW
- Page 1 OPERATING AND INSTALLATION MANUAL COMBINED WATER TANKS FOR VERTICAL MOUNTING Hot water tanks OKC 125/1 m 2/6 kW OKC 160/1 m 2/6 kW OKC 200/1 m 2/6 kW Družstevní závody Dražice-strojírna s.r.o. Dražice 69, 294 71 Benátky nad Jizerou tel.: +420 / 326 370 911 fax: +420 / 326 370 980 e-mail: export@dzd.cz...
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Page 2: Table Of Contents
CONTENTS PRODUCT TECHNICAL SPECIFICATION ....................... 4 FUNCTION DESCRIPTION ........................4 ADVICE FOR CUSTOMERS ......................... 4 1.2.1 HOT WATER CONSUMPTION ..................... 4 1.2.2 ENERGY SAVING ......................... 4 1.2.3 EMERGENCY POWER CONSUMPTION ..................4 DESIGN AND GENERAL HEATER DIMENSIONS ................. 5 OPERATION AND FITTING INSTRUCTIONS ....................8 OPERATING CONDITIONS ......................... - Page 3 CAREFULLY READ THIS MANUAL BEFORE INSTALLING THE WATER HEATER! Dear Customer, Družstevní závody Dražice - strojírna s.r.o., would like to thank you for your decision to use a product of our brand. With this guide, we will introduce you to the use, construction, maintenance and other information on electrical water heaters.
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Page 4: Product Technical Specification
1 PRODUCT TECHNICAL SPECIFICATION FUNCTION DESCRIPTION Tank type water heater (the heater hereinafter) is designed for the accumulation heating of service water by electric energy, or by thermal energy through an exchange. Water is heated by an electric element or a heat exchanger in an enameled thermally insulated tank. -
Page 5: Design And General Heater Dimensions
TIME OF HEATING BY ELECTRICITY CONSUMPTION HEATING ELEMENT TANK TYPES NOMINCAL CAPACITY [l] FOR HEATING OF VOLUME FROM 10°C TO 60°C FROM 15°C TO 65°C in kWh [hours] OKC 125/1 m 3.5 / 2000 W 2/6 kW OKC 160/1 m 4,3 / 2000 W 2/6 kW OKC 200/1 m... - Page 6 OKC 160/1m 2/6 kW, OKC 200/1m 2/6 kW Upper suspension + lower suspension Figure 2 3/4" outer OKC 125/1m OKC 160/1m OKC 200/1m TYPE 2/6 kW 2/6 kW 2/6 kW 1" outer 1067 1255 1300 3/4" inner *Check the R dimensions before drilling.
- Page 7 OKC 125/1m OKC 160/1m OKC 200/1m TYPE 2/6 kW 2/6 kW 2/6 kW VOLUME MAX OPERATING OVERPRESSURE IN THE TANK MAX MAXIMUM OPERATING OVERPRESSURE IN THE EXCHANGER* RECOMMENDED BREAKER 3x16 A ELECTRICAL CONNECTION 3 PE-N ~ 400V/50Hz INPUT 2000 / 6000 EL.
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Page 8: Operation And Fitting Instructions
2 OPERATION AND FITTING INSTRUCTIONS OPERATING CONDITIONS The tank shall only be used in accordance with the conditions specified on the nameplate and in this manual. Besides the legally acknowledged national regulations and standards, also conditions for the connection defined in local electric and water works have to be adhered to, as well as the installation and operation manual. -
Page 9: Plumbing Fixture
Figure 3 If the hot water heater is mounted in a tight, smaller space, or in an intermediate ceiling, etc., you have to make sure that the connecting side of the appliance (connections to water supply, area for electric plugging) remained accessible and no heat accumulation occurs. Free space of up to 600 mm from the bottom edge of the heater has to be left available under the heater. - Page 10 ALLOWABLE OPERATING SAFETY VALVE START-UP MAX PRESSURE IN COLD WATER OVERPRESSURE OF WATER PRESSURE [MPa] PIPING [MPa] HEATER [MPa] up to 0.48 Table 4 If the water main pressure exceeds such value, a reduction valve must be added to the system. Figure 4 It is recommended to install stop valves on the heating water inlet and outlet (for possible dismantling of the heater).
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Page 11: Electrical Installation
Figure 5 ELECTRICAL INSTALLATION 2.4.1 GENERAL INFORMATION FOR ELECTRICAL INSTALLATION Execute the connection as indicated in the wiring diagram. Factory connection must not be changed! (Figure 7) In the electric wiring cabinet remove the partition corresponding with the input wire diameter of 8 or 10 (Figure 6).The degree of protection of the electrical parts of the heater is IP 44. - Page 12 It is necessary to observe the below requirements during the electric wiring. • The wiring diagram is attached to the heater on the side of the electric installation guard (Figure 7). • The electrical installation may only be connected, repaired and inspected by a person authorized to perform that activity.
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Page 13: Operating Activity
OPERATING ACTIVITY Basic heating, 2 kW/230 V/8.5 A - 1 phase - controlled by thermostat Te1. The temperature can be set using the panel on the heaters in the range of approx. 5 °C to approx. 75 °C by setting the temperature on the thermostat Te2. -
Page 14: First Commissioning
FIRST COMMISSIONING Before opening the power supply, the tank must be filled with water. The process of first heating must be executed by licensed professional who has to check it. Both the hot water outlet pipe and safety armature parts may be hot. During the heating up process the water that increases its volume during the heating must visibly drip off the safety valve. -
Page 15: Inspection, Maintenance & Care For The Appliance
Drainage of utility water shall be performed after closing the shut-off valve in the cold water supply piping (through the discharge valve for safety valve combination), and with simultaneous opening of all hot water valves of connected fittings. Hot water may outflow during the drainage! If there is a risk of frost it has to be considered that not only the water in the hot water heater and in the hot water piping may get frozen but also the water in the entire cold water supply piping. -
Page 16: Most Frequent Function Failures And Their Causes
We recommend checking and cleaning the tank from scale and eventual replacement of the anode rod after two years of operation. The anode life is theoretically calculated for two years of operation; however, it changes with water hardness and chemical composition in the place of use. -
Page 17: Operation Of Thermostat
3 OPERATION OF THERMOSTAT OPERATING DEVICES OF THE HEATER Electric installation cover for OKC 1m 2/6 kW Switching indicator: 1/ of el. circuit 2 kW - blue color 2/of el. fast heating circuit - red color Thermostat knob Fast heating activation button Figure 8 Neither the thermostat, nor any other part of the control panel is a bearing part that could be used for any handling the heater. -
Page 18: Important Notices
Adjusting the thermostat knob to the left backstop does not mean permanent shutoff of the heating element. When the heater is in use without blocking the daily rate, we do not recommend the temperature to be set above 55 °C. Select the "OPTIMUM" symbol as the maximum. -
Page 19: Disposal Of Packaging Material And Non-Functioning Product
Due to the transport and thermal dilatations, excessive enamel may fall off on the bottom of the receptacle in heaters with exchanger. This occurrence is common and has no effects on the heater's service life and quality. The decisive enamel layer which remains in the vessel. DZD has many years of experience with this occurrence, and it is not a reason for complaints.
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