Belimo ECON-ZIP-BASE - 2-Speed Fan Setup

1
6
0
6/16 - Subject to change. © Belimo Aircontrols
(
USA
)
, Inc
.
2-
Sp
eed Fan
S
etu
p
ZIP
Eco
n
o
m
i
z
er
Setup and Configuration
2. Connecting them into the following, utilizing the IF connection at the
E
CON-ZIP-EM.
Setting up the ZIP Economizer with Variable Frequenc
y
Drive
.
1. You will need a VFD rated for
supply fan HP.
2. You will need to have a ZIP
Economizer ECON-ZIP-BASE and
an Energ
y
Module ECON-ZIP-EM
.
3. You will also need a separate
S
PDT relay for integration, and
S
PST for fan enabling.
Before Getting Started
Wiring VFD to ZIP Economizer
Wire the VFD according to the manufacturer’s instructions. Ensuring line
volta
g
e to the drive, and wirin
g
the output of the VFD to motor per dia
g
ram
b
elow.
Verify that the motor rotation is correct. If not, switch 2 of 3 wires from VFD
t
o
m
o
t
o
r
.
1. Locate the VFD Digital Inputs, as well as an
y
pertinent High, Low Speed
D
es
i
gnat
i
on
.
Reference Drive Control Terminal Description
D
i
g
ital Inputs- X1 Terminal
+
24V
Auxiliar
y
voltage output 24 VDC / 250 mA
(reference to
G
ND), short circuit protected
.
G
ND
A
ux
ili
ar
y
vo
l
tage output common
D
CO
M Digital input common. Jumper to
G
ND.
DI1
S
tart/stop. Jumper to +24V
.
DI2
Pro
g
ram to 40 Hz. Wire to
S
PDT N
O
contact.
DI3
Program to 60 Hz. Wire to
S
PDT N
C
contact.
DI4
S
afety interlock. Jumper to +24V.
Example VFD Terminal Desi
g
nations
F
an enable rela
y
; single pole, single throw
3. Power RTU and enter
S
ettings menu.
Drive
U1 V1 W1
GND U2 V2 W2
Motor
GND
L3
L2
L1
Input
Programming Indoor Fan Settings
Wh
en a
VFD
i
s a
dd
e
d
, up to t
h
ree
(3)
a
ddi
t
i
ona
l
sett
i
ngs w
ill
b
e requ
i
re
d.
a. Low
S
p Vent Min – When a 2
S
peed strategy is used to save energy,
an additional Vent Min Pos needs to be entered for low speed operation
due to less available static pressure from the fan. This position will be
g
reater than Vent Min Pos, however equal the same measured airfl ow
ra
t
e
v
a
l
ue.
b. Low
S
p D
C
V Min - When a 2
S
peed strategy is used to save energy,
an additional D
C
V Min Pos needs to be entered for low speed operation
due to less available static
p
ressure from the fan. This
p
osition will be
greater than D
C
V Min Pos, however equal the same measured airfl ow
r
ate va
l
ue
.
c.
L
ow
E
x
h
F
an
P
os -
Wh
en a
2
spee
d
stategy
i
s use
d
to save energy, an
additional Exh Fan
O
n Pos needs to be entered for low s
p
eed o
p
eration
due to less available static pressure from the fan. This position will be
g
reater than Exh Fan
O
n Pos, however equal the same measured airfl ow
r
ate value.
These values should be set to provide the same airfl ow of outside air
(
OA
)
and
e
xhaust as when fan is operating at full speed. Due to less pressure generated
by
the fan, this value is t
y
picall
y
a higher percentage open value.
+
24V
VFD
D
I
1
(
Start/
S
top)
G
C
W
ARNIN
G
Live Electrical
C
omponents
!
D
urin
g
installation, testin
g
, servicin
g
and troubleshootin
g
of this
product, it may be necessary to work with live electrical components. Have a
q
uali
fi
ed licensed electrician or other individual who has been properly trained
in handlin
g
live electrical components per
f
orm these tasks. Failure to
f
ollow all
electrical sa
f
et
y
precautions when exposed to live electrical components could
result in death or serious in
j
ur
y
.
T
he control circuit inputs to the VFD are 24 VDC signals. This voltage is sourced
from the VFD at its terminal stri
p
X1, +24V. The s
p
eed in
p
uts are received at X1
terminals (DI--2) for low speed (40HZ) motor operation and (DI--3) for high
spee
d
(60HZ)
motor operat
i
on.
Wh
en ne
i
t
h
er
i
nput
i
s present, t
h
e
VFD
w
ill
s
h
ut
the fan motor off.
Utilizing the nomenclature from the example VFD Terminal Designations table,
pull the following items from the terminal block for Digital Inputs.
S
ingle pole, double throw rela
y
24V
VFD
IF C
DI3 (High Sp)
DI2 (Low Sp)
+
24V
VFD
DI3
(
High Sp
)
DI2
(p)
(
Low S
p)
IF
C
R
T
U
Termina
l
ECON-ZIP-EM