Dražice OKC 250 NTR - Electrical Installation; GENERAL INFORMATION for ELECTRICAL INSTALLATION; Electronic Thermostat Wiring Methods

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2.4 ELECTRICAL INSTALLATION
2.4.1 GENERAL INFORMATION FOR ELECTRICAL INSTALLATION
• Check the insertion of the thermostat sensor in the thermowell, the so-called
insertion all the way.
• The tank can be connected to any hot water heating boiler up to the 50 kW power
output. To adjust the distance from the wall, connect the wire of the external
protective bonding!
• The tank is powered directly from boiler by control voltage 230 V/50 Hz.
• Elastic cable CYSY 4Cx0.75 can be used for cross connection.
• Connecting terminals are identified on the tank's terminal board.
2.4.2 ELECTRONIC THERMOSTAT WIRING METHODS
Wiring of tanks of the below types:
OKC 100 NTR, OKC 125 NTR, OKC 160 NTR, OKC 200 NTR, OKC 200 NTRR, OKC 250 NTRR, OKC 100 NTR/HV,
OKC125 NTR/HV, OKC160 NTR/HV
- there is voltage on terminal 2 if tank is heated
- there is voltage on terminal 1 if tank is not heated
Figure 13
Touch thermometer is installed on the control panel to control the temperature of
water, additionally there is a capillary thermostat to set the desired water
temperature and two signal lights: "green" = tank heated; "orange" = tank is getting
heated.