Daikin EWAA016DAV3P - To Connect the Changeover to External Heat Source

9 | Electrical installation
Installer reference guide
97
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620242-1 – 2020.06
Wires: (2+1)×0.75mm²
Maximum load: 0.3A, 250VAC
—
1 Open the service cover. See "To open the outdoor unit"[461].
2 Connect the space cooling/heating ON/OFF output cable to the appropriate
terminals as shown in the illustration below.
7
9
YCY2
X2M
12
3
A4P
1+2 Wires connected to the space
cooling/heating ON/OFF output
3 Wire between X2M and A4P
A4P Installation of EKRP1HBAA is
required.
A4P.Y2
X2M.7
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.
9.2.9 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 "To open the outdoor unit"[461].