6 Electrical installation
Installation manual
19
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620240-1 – 2020.06
YC Y2
9
7
X1M
Y2
X2M
A4P
a
YC
a
Installation of EKRP1HBAA is required.
WARNING
Stripped wire.
Make sure that stripped wire cannot make
contact with possible water on the bottom plate.
3
Fix the cable with cable ties to the cable tie mountings.
6.3.8
To connect the changeover to external
heat source
Wires: 2×0.75 mm²
Maximum load: 0.3 A, 250 V AC
Minimum load: 20 mA, 5 V DC
[9.C]
Bivalent
1
Open the service cover. See
9].
2
Connect the changeover to external heat source cable to the
appropriate terminals as shown in the illustration below.
A4P.X1
A4P.X2
N
L
X1
X2
X1
X2
X2M
A4P
a
a
Installation of EKRP1HBAA is required.
3
Fix the cable with cable ties to the cable tie mountings.
6.3.9
To connect the power consumption digital
inputs
Wires: 2 (per input signal)×0.75 mm²
Power limitation digital inputs: 12 V DC / 12 mA detection
(voltage supplied by PCB)
[9.9]
Power consumption control
.
1
Open the service cover. See
2
Connect the power consumption digital inputs cable to the
appropriate terminals as shown in the illustration below.
S6S (DI4)
A8P.1
A8P.2
A8P.3
A8P.4
A8P.5
S7S (DI3)
S8S (DI2)
S9S (DI1)
X801M
3 4 5
2
1
A8P
a
a
Installation of EKRP1AHTA is required.
3
Fix the cable with cable ties to the cable tie mountings.
6.3.10
To connect the safety thermostat
(normally closed contact)
Wires: 2×0.75 mm²
Maximum length: 50 m
Safety thermostat contact: 16 V DC detection (voltage
supplied by PCB). The voltage-free contact shall ensure the
minimum applicable load of 15 V DC, 10 mA.
—
1
Open the service cover. See
2
Connect the safety thermostat (normally closed) cable to the
appropriate terminals as shown in the illustration below.
X5M.14
X5M.13
Q4L