Daikin MEGA-Q RXHWQ120MQTJA Manuel D'installation page 28

z ever connect the ower su
The whole system will be damaged.
CAUTION
z
hen connecting wiring if ou a
board may be damaged.
Install with care.
See the table below for the tightening torque of the transmission wiring terminals.
z he transmission wiring shoul be wire using
z or transmission wiring
Exceeding these limits may cause transmission errors.
a imum wiring length
otal wiring length
ranching after branching is not ossible. refer to ig.
z In the electrical com onents bo secure the transmission wiring to the electrical com onents bo with the clam s as in
ig. an
unit.
utsi e the unit win the transmission wiring together with the on site refrigerant i ing using nishing ta e
su l . refer to ig.
ranching
after a branch
ow voltage electrical wiring
24
02_EN_MEGAQ_IM.indd 02_EN_MEGAQ_IM.indd 24 24
l wiring to the transmission wiring terminal.
l e cessive force to the terminal on the rinte circuit boar or over tighten it the
Screw size
M3.5 (A1P)
lease erform wiring within the sco e of the following restrictions.
ft.
ft. m or less
ig. . Use the supplied clamps for the heat source unit and separately prepare clamps for the cascade
Tank control board
Cascade unit
I
F1 F2
I
F1 F2
Fig. 20
X1M
A7P
X2
X1
A1P
X1M
Fig. 21 Secure the transmission wiring
(cascade unit)
・ m)
ightening tor ue
ft ・ lbf ・ m)
. . . .
stran e nonshiel e wiring.
m or less
Heat source unit
I
F1 F2
I
F1 F2
Three-way valve
operation circuit
transmission wiring
Secure to the
electrical
Pass the transmission wiring
components box
through the clamp in the
with the attached
electrical components box
clamp (1)
Pass the transmission
wiring through the
clamp in the electrical
components box
Secure to the electrical
components box with
the clam el su l
un le the low voltage
electrical wiring with
the clam el su l
Insulation material
: Allowed
: Not Allowed
A1P
X1M
ow voltage
electrical wiring
un le the low voltage electrical
wiring with the attached clamp (1)
Fig. 22 Secure the transmission wiring
(heat source unit)
Transmission
wiring
Finishing
Insulation material
Tape
i ui i ing Gas piping
Fig. 23
el
English
2023/12/05 2023/12/05 13:49:07 13:49:07