Rendamax R2000 Series, Техническая документация инструкция

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DOC2012/2000en
The minimum supply pressure must never fall below 18 mbar. With a lower gas pressure it is
possible that the boiler will not run at 100% capacity. At the same time the boiler can be more pron e
to failures . Adjust the burner pressure with a supply pressure of 20 mbar before the boiler.
5.2.2 Electrical supply
The product has to be installed by a recognized installer fully according to the current national and
local demands, norms and standards.
The boiler is wired according to the circuit diagram which is supplied with the boiler.
The boiler must be protected by a 6 amp fuse.
The boiler must have electrical supply voltage of 230 VAC.
Do not cross connect ‘live’ and “neutral”!
“Live” is connected to the terminal marked with “L” (brown), and “neutral” is connected to the ter-
minal marked with “N” (blue). “Earth” is connected to the terminal “W” (yellow/green).
E
External control
It is possible to externally control the unit.
The following terminals on the terminal block have the following functions:
1
common
1 - 2* up signal
1 - 3 down signal
4 - 5* enable
6 - No cascade signal (240 V)
M6 - XU6 0 - 10 VDC control signal (only available with EM/EW control option)
32 - No external main gas valve
A - No alarm signal (240 V)
*) remove
jumper
Pump switching
The boiler’s circulation pump must be in operation before the boiler is switched on. When the
boiler is switched off, the circulation pump should continue to run for several minutes in order to reduce
the amount of heat present in the boiler (minimun 3 minutes). If the pump is switched off too soon, the
water temperature can rise above the maximum water temperature, as a result of which the high limit
thermostat will cause the boiler to
fall into “Lock-out”. In this case no general alarm signal is indicated.
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5.2.3 Hydraulic connections
The product has to be installed by a recognized installer fully according to the current national and local
demands, norms and standards. The supply and return pipes are found on the rear side of the boiler.
As standard all boiler type s are fitted with a boiler pressure relief valve, set to 3 bar .
If requested the manufacturer can also install relief valves which are set to between 3 and 6 bar .
Heavy supply and return pipes should be supported from underneath .
Fig. 12 Electrical terminal block