To Connect The Safety Thermostat (Normally Closed Contact); To Connect A Smart Grid - Daikin EWYA004D2V3P Installer's Reference Manual

9.2.11 To connect the safety thermostat (normally closed contact)

9.2.12 To connect a Smart Grid

EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09
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.
180°
X5M
a Remove jumper
3 Fix the cable with cable ties to the cable tie mountings.
NOTICE
Make sure to select and install the safety thermostat according to the applicable
legislation.
In any case, to prevent unnecessary tripping of the safety thermostat, we
recommend the following:
▪
The safety thermostat is automatically resettable.
▪
The safety thermostat has a maximum temperature variation rate of 2°C/min.
NOTICE
Error. If you remove the jumper (open circuit) but do NOT connect the safety
thermostat, stop error 8H-03 will occur.
This topic describes 2 possible ways to connect the outdoor unit to a Smart Grid:
▪ In case of low voltage Smart Grid contacts
"7.3.2 To open the outdoor
X5M.14
Q4L
X5M.13
X5M
1314 13 14
a
9 Electrical installation
|
4
unit" [ 56].
Installer reference guide
97