STIEBEL ELTRON ETT 500 electronic Gebrauchsanweisung Seite 23

charging control devise
extra-low voltage - system
Wiring diagram
A1 Elektronic charge regulator
A4 Operating panel electronics
Brick sensor-charge (at 20 ºC ≈ 541 Ω)
B1
E1-E6 Heater element
F1 Safety thermal cut-out
F2 Microfuse (250V 2A slow)
K1 Thermal relays
M1-M2 Blower fan
N4 Protective temperature regulator - charge
N5 Protective temperature regulator - discharge
N6 Protective temperature regulator only for 5 KW
R1 Adjustor - charge 10 kΩ
H1 Operation and fault indicator
X1 Main connection terminals
X2 Terminal
X3 DC-Terminal (0,9 - 1,43 V)
X16 Control signal adapter, 4-stage
X17 Output reducer, 4-stage
charging control devise
230 V-system
(Selector switch)
Special accessories
(does not form part of the scope of supply at installation,
mark the invidual special accessory with a cross in each case)
RTI-E3 RTI-EP2
A2 Elektronic discharge regulator
B2 Room temperature sensor - discharge
(at 20 ºC ≈ 27,1 kΩ)
R2 Adjustor - discharge 10 kΩ
S2 ON/OFF-switch for room temperature sensor
X25 Internal connection lead A1-A2
Supplementary heating
E8 Supplementary heating element
N2 Temperatur regulator Supplementary heating
N3 Temperatur regulator Supplementary heating
S1 ON/OFF-switch for Supplementary heating
When assembling supplementary heating (E8) observe the
switching capacity.
23