M
ain po
w
er supply
208-230V 60 H
z
distr
ibution
H
igh-pr
essur
e
swit
ch
Not sc
ope of Danf
oss deliv
er
y
C
ompr
essor
,
or
der of phases
must be obser
ved!
Saf
et
y
cir
cuit
br
eaker
4-
w
ay
rev
ersing valv
e
C
oil
L1
L2
Chassis
T1
T2
T3
T1
T2
T3
In
ver
ter PC
A
EEV_1
EEV_2
MASTER
EXT_FAN
S_AMBIENT
S_AUX
S_D
P_O
P_C
RLY_1
M
odbus ser
ial
communica
tion with
EE
V c
on
tr
oller
M
odbus ser
ial
communica
tion with
OEM c
on
tr
oller
C
ompac
t unit
Schema
tic
W
iring Diag
ram
C
ombined Air
-C
onditioning
and g
round sour
ce Hea
t
Pump S
yst
em
A
genda:
Lo
w v
oltage
H
igh v
oltage
Pr
efabr
ica
ted cable
Scr
eended cable
175ZB102.12
Indoor unit temp
. sensor
PT 1000(S2)
EEV
unit
EEV
Controller
OEM
C
on
tr
oller
(T
her
mosta
t)
Ambient temperature
sensor PT 1000(S. amb.)
Compr. discharge temp.
sensor PT 1000(Sd)
Compressor suction
pressure sensor (Po)
Compressor discharge
pressure sensor (Pc)
Aux. temperature
sensor PT 1000
supply ac
cor
ding
to c
oil t
ype
i.e
. 230 or 24V
A
C
Illustration 3.22 Ground Source Heat Pump System with one EEV
Electrical Installation
VLT
®
Inverter Scroll CDS 801 Operating Instructions
24
MG10V402 - VLT
®
is a registered Danfoss trademark
3
3