Dražice OKC 200 NTRR / BP Operating And Installation Manual - Page 10

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Dražice OKC 200 NTRR / BP Operating And Installation Manual
OKC 160-300 NTR
heated by a gas boiler with two pumps
10.

ELECTRIC WIRING

OKCE 160 NTR/2,2 kW, OKCE 200 NTR/2,2 kW, OKCE 200 NTRR/2,2 kW, OKCE 250 NTR/2,2kW,
OKCE 250 NTRR/2,2 kW, OKCE 300 NTR/2,2 kW, OKCE 300 NTRR/2,2 kW, OKCE 300 NTR/3-6 kW
OKCE 300 NTRR/3-6 kW
Water heaters are equipped with a universal electric heating unit with either set or adjustable heating element
performance. A heating unit consists of a flange, to which one or three wells for ceramic heating elements and one
thermowell are welded (see fig.). A unit is attached by either 8 M 10 screws with a 168 mm clearance, or 12 M 12
screws with a 210 mm clearance. In the wiring plastic cover, there is a thermostat and a safety fuse; heater
operation control light; and a lead-in wire bushing.
The sensors must be inserted all the way in; first the thermostat and then the safety fuse.
The performance of heating unit may be adjusted based on either required heating time or connecting possibilities
of electric energy distribution in the place of use.
Technical parameters of an electric heating unit
After the heater is connected to electric network, the heating element starts heating water. The element is turned on
and off by a thermostat. Thermostat can be set as per your need within the range from 5°C to 74°C. We recommend
setting the service water temperature to maximum temperature of 60°C. This temperature ensures an optimal
operation of the heater, reduces heat losses and saves electricity. After reaching the temperature set, the thermostat
OKC 200-300 NTRR
nahřívaný plynovým kotlem a slunečními kolektory
controlled by a three-way valve