13.
FIRE-FIGHTING REGULATIONS FOR INSTALLATION AND USE OF HEATER
We would like to emphasise that the heater must not be connected to power supply if work
involving flammable liquids (petrol, spot remover) or gases, etc., is performed nearby.
14.
INSTALLATION REGULATIONS
Regulations and instructions that must be obeyed if the heater is connected
a) to the heating system
ČSN 06 0310 – Thermal systems in buildings – Designing and Installation
ČSN 06 0830 – Thermal systems in buildings – Protecting devices
b) for electric network
ČSN 33 2180 - Connecting of electric devices and appliances
ČSN 33 2000-4-41 - Low voltage electric installations Protective measures to ensure safety – Protection against
ČSN 33 2000-7-701 - Low voltage electric installations
c) to the HSW heating system
ČSN 06 0320 - Thermal systems in buildings - Hot water preparation – Design and Project Engineering
ČSN 06 0830 – Thermal systems in buildings – Protecting devices
ČSN 73 6660 – Internal water mains
ČSN 07 7401 - Water and steam for thermal energy equipments with working steam pressure up to 8 MPa
ČSN 06 1010 - Tank water heaters with water and steam heating; and combined with electric heating.
ČSN 75 5455 – Calculation of water installations inside buildings
ČSN EN 12897 – Water supply – Indirectly heated closed tank-type water heaters
Both electric and water installation must follow and meet requirements and regulations relevant in the country
of use.
15.
MOST FREQUENT FUNCTION FAILURES AND THEIR CAUSES
Temperature of water is not
corresponding with the set
value
Water is constantly dripping
of the safety valve
Do not try to repair the failure yourselves. Seek either expert or service help. It does not take much for an expert to
When making a repair appointment, report the type and serial number you find on the
remove the defect.
performance plate of your water heater.
16.
PRODUCT ACCESSORIES
G3/4" safety valve is packed with the product and the OKC 100, 125 NTR and OKC 100, 125, 160 NTR/ HV types
are additionally equipped with a discharge valve. The OKC NTR/Z and OKCV NTR types packaging include
suspension elements and thermometer.
It is in your own interest to check the completeness of the accessories.
electric shock
premises
- Premises with bathtub or shower
Technical requirements. Testing.
LED is not on
Single-purpose devices and devices in special
Defective thermostat
Input pressure too high; faulty safety valve
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