Drazice TJ 2" HP 9 kW Manual de funcionamiento e instalación - Página 4
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1 PRODUCT TECHNICAL SPECIFICATION
1.1
FUNCTION DESCRIPTION
Bivalent source for the heat pump with cascade regulation is designed as an additional heating to the thermal
pump, i.e. as a bivalent source for the provision of thermal comfort and potential replacement of thermal
pump for cases of malfunction.
Water is heated by tubular heating element. The well includes the sensor of safety thermostat. Water
temperature should be controlled by thermal pump regulation. In case of a failure, the safety thermostat
switches off electricity supply in all poles at a temperature of 90–95 °C.
1.2
ADVICE FOR CUSTOMERS
Prior to putting the heating element into operation, re-measuring of insulation resistance
is recommended. The insulation resistance in cold must not be below 50 MΩ. If the insulation
resistance is lower, we recommend drying the heating element.
Both the electric and water installation must follow and meet the requirements and regulations
relevant in the country of use!
1.3
DESIGN AND GENERAL HEATER DIMENSIONS
The bivalent source consists of an electrical heating element with a connecting thread G 2" (Figure 1). A safety
thermostat and a connection terminal block are placed under the wiring plastic cover.
Legend:
1 - bivalent source steel casing
2 - thermal insulation
3 - cover with wiring
Figure 1
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