Belimo ECON-ZIP-BASE - Page 36

36
0
6/16 - Subject to change. © Belimo Aircontrols
(
USA
)
, Inc
.
E
x
h
aust
F
a
n
(O
perates only in Free
C
oolin
g
and Inte
g
rated
C
oolin
g
.
)
Note: In theory, if Exh Fan
O
n Pos
/
Low Exh Fan Pos for damper % is set very
low, then Exhaust Fan could also run in other modes (Ventilation, Mechanical,
D
C
V).
•
Control of the exhaust fan is damper position dependent. Damper setpoint
f
or enable/disable of the exhaust fan is Indoor Fan Speed dependent
(
Hi
g
h
Speed Damper Setpoint = Exh Fan On Pos; Low Speed Damper Setpoint =
L
ow
E
x
h
F
an
P
os
)
.
• IF Damper Pos is 10% greater than Exh Fan On Pos/ Low Exh Fan Po
s
OR Dam
p
er Pos is 100% o
p
e
n
THEN Exhaust Fan will be energized
.
• IF Dam
p
er Pos is 10% less than Exh Fan On Pos/ Low Exh Fan Po
s
OR Dam
p
er Pos is less than 5% o
p
en
THEN Exhaust Fan will be de-energized.
Example: If Exh Fan
O
n Pos is set at 45%, when damper opens to 55%,
exhaust
f
an will turn on. When damper closes to 35%, exhaust
f
an will turn o
ff
.
Service and Comissioning
M
anua
l
Mod
e
This menu is available after
S
etup has been completed. This is selected in
Level 2 menu
S
ervice and
C
ommissioning. This supports the commissioning
phase allowing all connected RTU components (except for the room
thermostat
)
to be tested by manually commandin
g
them throu
g
h the keypad
inter
f
ace. To
p
revent RTU sa
f
et
y
lockout and
p
ossible e
q
ui
p
ment
damage, ensure the RTU indoor
f
an is running!
Re
t
u
rn t
o
Au
t
o
m
a
t
ic
w
ill
occur automat
i
ca
ll
y
b
etween 1-8
h
ours
(
a
dj
usta
bl
e
)
un
l
ess
R
eturn to
A
utomat
i
c
i
s se
l
ecte
d
.
No
te:
D
amper w
ill
move at
hi
g
h
spee
d
.
N
o
t
e
: Com
p
ressors, exhaust fan
1
and indoor 2 s
p
eed fan
1
minim
u
m
o
n
o
r
minimum off time does N
O
T a
pp
l
y
in this test state. The
y
will be turned on and
o
ff
immediately based on the entered command. Also, exhaust
f
an
1
w
ill
not
b
e
turne
d
on automat
i
ca
lly
b
ase
d
on
d
am
p
er
p
os
i
t
i
on
i
n t
hi
s mo
d
e,
b
ut
i
t can
b
e
manua
ll
y comman
d
e
d
.
Damper Scaling
I
f
there was a mechanical
f
ailure or ad
j
ustment that prevented proper damper
scalin
g
f
rom vir
g
in to automatic, it can be rescaled. “Damper scalin
g
starts in
10secs” and will countdown to 0. A message will scroll saying “Damper scaling
f
or better operation i
f
obstruction is present rescale damper in commissioning
menu”. (For detailed instructions on this – please see the section “
S
ervice and
C
ommissioning” below. This will open damper to 100% (re-scale control signal
if needed
)
.
(
Note: failure to identify obstructions or improper setup of damper
assembly may result in an improper scalin
g
and operation of the damper.
)
Once scalin
g
is complete, a messa
g
e will appear sayin
g
“Damper scalin
g
success
f
ul”. The ZIP will then show “maximum at 80° = 100%” That messa
g
e
will show maximum rotation of the dam
p
er. This
p
rocess ensures the dam
p
er is
always operating and displayed
f
rom 0-100%.
Acceptance Test (Four poss
i
ble opt
i
ons)
This menu is available after Setup has been completed. This complies with
the California Title 24 Mechanical Testing and has four tests. To prevent RTU
safety lockout and possible equipment damage, ensure the RTU indoor
fan is running
!
E
conom
i
zer Test
(
NA7.5.4
)
•
This is an automatic functional and verifi cation test that moves the damper
100% open/100% closed/and minimum position and switches on CC1 and
EF
1
(i
f
available). It leads one through the test step by step in accordance
with
C
alifornia Title 24 test form
.
N
o
t
e:
1 minute minimum on time
;
1 minute minimum off time for
compressor applies in this test to prevent damage
f
rom short cycling.
Exhaust fan
1
d
oes turn on
b
ase
d
on
d
am
p
er
p
os
i
t
i
on
i
n t
hi
s test.
N
ote: Damper will move at high speed.
V
entilation Test (NA7.5.1.2
)
•
This is a manual test that allows adjustment to the damper minimum
position (Vent Min Pos) in the Settings menu for verifi cation of ventilation
r
a
t
es
.
N
o
te
:
Damper minimum position must be commanded to get damper to go
to minimum
p
osition in this mode!
Example: Prior to going into this test, let’s say Vent Min Pos is set for 20%.
A
fter going into this test you still must go into Settings/Vent Min Pos and
chan
g
e the value by at least 1%, then you can chan
g
e back to 20%. If you
d
on’t create a change o
f
value
f
or Vent Min Pos the damper will not move o
ff
fully closed position in this test. The new Vent Min Pos setting you enter will be
store
d
an
d
use
d
w
h
en
y
ou return to automat
i
c.
RTU
T
est
(NA
7.5.2
)
•
This is a manual test used to test the
f
ollowing signals
f
rom the thermostat
to t
h
e
RTU
:
•
G
powered
(O
ccupied
)
– damper is at minimum position
(
Vent Min Pos
)
;
ot
h
erw
i
se t
h
e
d
amper goes c
l
ose
d
to out
d
oor a
i
r
(U
noccup
i
e
d)
.
•
Y1 powered –
CC
1 is energized; otherwise
CC
1 is de-energized.
•
Y2 powered – CC2 is energized; otherwise CC2 is de-energized.
No
t
e
: 1 minute minimum on time; 1 minute minimum off time a
pp
lies in
this test mode to prevent damage from short cycling compressors.
•
W
1 powere
d
–
H
eat
i
ng
i
s ena
bl
e
d
.
D
CV
1
T
est
(NA
7.5.5
)
6
•
This is a manual test used
f
or the
f
ollowin
g:
•
CO2 in
p
ut will be used to modulate minimum dam
p
er
p
osition between
DCV Min Pos and Vent Min Pos as CO2 levels var
y
below and above
(
respectively
)
the CO2 Setpoint.
A
ll of the above tests can be aborted by selectin
g
Return to Automatic in the
L
e
v
e
l 2 m
e
n
u
.
E
nd of Se
q
uences
1
O
nly available with Energy Module
O
ption. If no Energy Module exists associated menu options will
n
ot
b
e
di
sp
l
aye
d.
2
S
ubject to Compressor Protection Strategies as noted earlier.
3
The
f
ollowing modes listed below take display priority on the ZIP MMI when co-existing with this mode.
4
This could possibly happen if W1 and Y1 are energized together calling for heating and cooling at
t
he same time (provided that RTU is not confi gured as a Heat Pump.) An alarm will be generated
.
5
Minimum on/off times must be observed before compressor will be commanded
.
6
“G” must be energized to run test
.
ZIP E
co
n
o
miz
er
Method of O
p
eration