Stiebel Eltron SHP-F 220 Premium Utilisation Et Installation page 23

INSTALLATION
Installation
Note
The appliance has a second, higher set temperature
which is selected at the factory. This is activated in the
event of an external switching signal. Set temperature 2
is higher ranking than the standard set temperature while
there is an external switching signal.
An external signal transmitter for switching a separate set DHW
temperature (set temperature 2) can be connected to terminal
X3/1-2. In the delivered condition, terminal X3/1-2 is not assigned.
If this terminal is connected at the voltage stated in the specifica-
tion (see "Permissible voltage range, external signal transmitter")
(L to X3/1, N to X3/2), the appliance enables set temperature 2.
Following one-off activation (signal present for at least 1 minute),
set temperature 2 applies for at least 20 minutes. Set tempera-
ture 2 is ranked higher than set temperature 1. When the relevant
DHW set temperature has been reached, the compressor switches
off and remains off for a minimum idle time of 20 minutes.
The following diagram illustrates the connections by means of a
sample signal sequence from an external signal transmitter.
Example:
- Water temperature = 55 °C
- Set temperature 1 = 50 °C
- Set temperature 2 = 65 °C
A
1
0
0 5 10 15 20 25 30 35
B
1
0
0 5 10 15 20 25 30 35
A External signal
B Compressor
1 20 min. minimum runtime, set temperature 2
2 20 min. minimum compressor idle time
f Remove the appliance cover (see chapter "Cleaning and f
maintenance / Removing the appliance cover").
1
1 Strain relief
2 Terminal X3
f Prepare the electric cables in such a way that each cable ter- f
minates with a wire ferrule.
f Push the cables through one of the cable entries in the appli- f
ance casing.
f Route leads through the strain relief. f
f Connect the cables to X3. f
www.stiebel-eltron.com
40 45 50 55 60 65 70 75 t [min]
40 45 50 55 60 65 70 75 t [min]
2
Example 1: Power-OFF signal with own 230 V phase
GNYE
PE
BU
N
BN
L
N
EVU
L1 / L2 / L3
EVU Power supply utility
BN Brown
BU Blue
GNYE green-yellow
Example 2: Photovoltaic signal via on-site relay and phase
routed outside the appliance
Note
The relay in the inverter must meet the following re-
quirements:
- Potential-free relay (240 V AC / 24 V DC, 1 A) with
N/O contact
- Adherence to safety regulations and standards for
1
2
safety extra low voltage
- The switching output must be programmed so that
the relay closes or opens if certain limits are exceed-
ed or undershot (inverter output level).
If necessary, check with the inverter manufacturer wheth-
er the product meets the stated criteria.
GNYE
PE
BU
N
BN
L
1
1 Inverter (floating contact)
BN Brown
BU Blue
GNYE green-yellow
The inverter power feed is usually located at a central distribution
point (e.g. in the main fuse box).
X0
PE
PE
N
X3
N
L 3
L 3
2 2
2 2
1 1
1 1
X0
PE
PE
N
N
X3
L 3
L 3
2 2
2 2
1 1
1 1
SHP-F 220-300 Premium | 23