3
17. 08. 17. Leaflet Number 671392
Installation and Maintenance
Twin Squif In-line Fans
029 2085 8400
7.0 ELECTRICAL INSTALLATION AND
WIRING - ECOSMART UNITS
These units are not supplied with any control
or isolators, their selection and provision is the
responsibility of the specifier/contractor.
Figure 7. Single Phase Fans - with Ecosmart
(ES-ISCT) controls, motors up to 3kW inclusive.
Figure 8. Single Phase Fans - with Ecosmart
(ES-ISCT) controls, motors above 4kW.
N
FA
UL RUN
L
SL
CL
N
RET
Remove this link wire if:
is connected.
1. a switched live signal is connected.
2. A ES-PIR, ES-TC or BMS signal
Min Max SL run on
Test
Trickle
1
0
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Tx
Frost
Rx
Ecosmart
D
AMPER
L1 L2
E
L3
(U)
(V) (W)
L3
L2
L1
12 13
15
14
5 6 7
9
8
10 11
12 13
15
14
0V
0-10V
BMS signal
1 3 5
2
6
4
(U)
(V) (W)
A1
CON
TA
CTER
A2
13
14
Net connection
,
sl
ani
mr
et
yl
pp
us
eh
t
ne
e
wt
eb
sn
oit
ce
nn
oc l
an
re
tni
:e
to
N
.
yr
ot
ca
f
eh
t t
a
ed
a
m
er
a r
etr
ev
ni
dn
a
B
C
P
eh
t
sr
ot
ca
tn
oc
tu
pt
uo
1
5
3
2 4 6
(U)
(V) (W)
A1
A2
CON
TA
CTER
13
14
W1 V1
U1
W2 V2
U2
Fan 1
Fan 2
W1 V1
W2
U1
V2
U2
L3
N
L2
L1
N L1 L2 L3
Mains supply connections
400V 3 phase 50 Hz + Neutral only
N
L
FA
UL RUN
SL
DP
CL
N
RET
Remove this link wire if:
is connected.
1. a switched live signal is connected.
2. A ES-PIR, ES-TC or BMS signal
Max SL run on
Min
Test
Trickle
1
0
Pwr
Standby
Fan 1
Heating
Fan 2
Cooling
Fault
Tx
Frost
Rx
Ecosmart
D
AMPER
E
L1
L3
L2
L3
(U)
(V) (W)
L2
L1
12 13
15
14
9
7 8
5 6
11
10
13
12
15
14
0V
0-10V
BMS signal
5
3
6
4
1
2
(U)
(V) (W)
A1
A2
CON
TA
CTER
13
14
Net connection
,
sl
ani
mr
et
yl
pp
us
eh
t
ne
e
wt
eb
sn
oit
ce
nn
oc l
an
re
tni
:e
to
N
.
yr
ot
ca
f
eh
t t
a
ed
a
m
er
a r
etr
ev
ni
dn
a
B
C
P
eh
t
sr
ot
ca
tn
oc
tu
pt
uo
5
6
3
1
4
2
(U)
(V) (W)
A1
A2
CON
TA
CTER
13
14
W1 V1 U1
W2 V2
U2
Fan 1
Fan 2
W1
U1
W2
V1
V2
U2
L3
N
L2
L1
N L1 L2 L3
Mains supply connections
400V 3 phase 50 Hz + Neutral only
Connections (Fig. 8 & 9) to fans must be via screened power cables. Purpose made glands are provided to earth the screening at the control
and the fans. IMPORTANT: the screening of the power cable must be continuous. Bridge any breaks (e.g. at local isolators) using braided
earthing cable.
