Installation Of The Digital Controller - Daikin EWAQ-ACV3 Installation Manual

Possible types of benefit kWh rate power supply
Possible connections and requirements to connect the equipment to
such power supply are illustrated in the figure below:
[D-01]=1
L N
1
2 S2S
3
L N
1
2 S2S
3
L N
1
2 S2S
3
3
17 18 X2M
X40A
EWAQ/EWYQ
1 Benefit kWh rate power supply box
2 Receiver controlling the signal of the electricity company
3 Power supply to unit
4 Voltage free contact
0
Allowed for all models
X Not allowed for OP10 models, allowed for other models
When the unit is connected to a benefit kWh rate power supply, the
voltage free contact of the receiver controlling the benefit kWh rate
signal of the electricity company must be connected to clamps 17
and 18 of X2M (as illustrated in the figure above).
When parameter [D-01]=1 at the moment that the benefit kWh rate
signal is sent by the electricity company, that contact will open and
the unit will go in forced off mode
When parameter [D-01]=2 at the moment that the benefit kWh rate
signal is sent by the electricity company, that contact will close and
the unit will go in forced off mode
type 1
The benefit kWh rate power supply is of the type that power supply is
not interrupted.
type 2 and 3
The benefit kWh rate power supply is of the type that power supply
will be interrupted after elapse of time or is interrupted immediately.
(1) When the signal is released again, the voltage free contact will close and
the unit will restart operation. It is therefore important to leave the auto
restart function enabled. Refer to
(2) When the signal is released again, the voltage free contact will open and
the unit will restart operation. It is therefore important to leave the auto
restart function enabled. Refer to
Installation manual
15
[D-01]=2
L N
1
2 S2S
4 3
L N
1
2 S2S
4 3
L N
1
2 S2S
3
4
A1P
(1)
.
(2)
.
"[3] Auto restart" on page 19.
"[3] Auto restart" on page 19.
Benefit kWh rate power supplies that completely shut
power supply like illustrated above as types 2 and 3
are not allowed for this application because of the
water freeze prevention that would not be powered.
When connecting the equipment to a benefit kWh rate
power supply, change field settings [D-01] and both
[D-01] and [D-00] in case the benefit kWh rate power
supply is of the type that power supply is not
interrupted (like illustrated above as type 1). Refer to
"[D] Benefit kWh rate power supply" on page 20
chapter
4
NOTE If the benefit kWh rate power supply is of the type that
power supply is not interrupted, the unit will be forced
to off.

Installation of the digital controller

The unit is equipped with a digital controller offering a user-friendly
4
way to set up, use and maintain the unit. Before operating the
controller, follow this installation procedure.
Wiring specifications
Wire specification
Type
Section
Maximum length
NOTE The wiring for connection is not included.
Mounting
The digital controller, delivered in a kit, has to be mounted
indoors.
1 Remove the front part of the digital controller.
Insert a slotted screwdriver into the slots (1)
in the rear part of the digital controller, and
remove the front part of the digital
controller.
2 Fasten the digital controller on a flat
surface.
NOTE Be careful not to distort the shape of the lower part of
the digital controller by over tightening the mounting
screws.
"Field settings".
Value
2 wire
0.75-1.25 mm
500 m
EWAQ+EWYQ009~011ACV3 + EWAQ+EWYQ009~013ACW1
Packaged air-cooled water chillers and packaged
reversible air to water heatpumps
of
2
1
4PW51587-1A