Drazice OKC 125 NTR Bedienings- en installatiehandleiding - Pagina 12

Blader online of download pdf Bedienings- en installatiehandleiding voor {categorie_naam} Drazice OKC 125 NTR. Drazice OKC 125 NTR 20 pagina's. Tank-type water heaters for vertical mounting
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Required pressures – Table 5. We recommend that the hot water distribution from the heater was as short

as possible to minimise heat losses.

ADMISSIBLE

SAFETY VALVE

OPERATING

STARTING

OVER-

PRESSURE

PRESSURE OF

[MPa]

WATER

HEATER [MPa]

0.6

0.7

Table 5

Heaters must be provided with a discharge valve mounted on the cold service water inlet to the heater for

potential disassembly or repair. When assembling the security equipment, follow Standards.

2.4 ELECTRIC WIRING

MAXIMUM

PRESSURE IN

COLD WATER

PIPES [MPa]

0.6

up to 0.48

0.7

up to 0.56

up to 0.8

0 - Air outlet valve

U – Shut-off valve

P1 - Safety valve with backflow flap

P2 - Safety valve for heating circuit

M - Manometer

Z – Test valve

V - Drain valve

Figure 4

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