Belimo ECON-ZIP-BASE - Page 40

4
0
0
6/16 - Subject to change. © Belimo Aircontrols
(
USA
)
, Inc
.
ZIP E
co
n
o
miz
er
Fault Detection and Diagnostics
(
FDD
)
Tabl
e
Fault Detection Problem
Diagnostic Action
(in addition to alarm stored / transmitted)
Potential Cause
CA Fault
Code
Energ
y
Module
is missing
Ex
p
ansion module
previousl
y
installed is not
detected
• Logic reconfigured to ignore devices attached
to Energ
y
Module, although ma
i
nta
i
ns sett
i
ngs
i
n memor
y
• Menu reconfigured to remove devices
• If CO2 sensor attached, lowest minimum
position is Vent Min Pos
• Functionalit
y
for pre-occupanc
y
purge, power
exhaust, remote damper override, DCV, and low
s
p
eed fan control not availabl
e
• Module was not installed tight initiall
y
and
b
ecame
l
oos
e
• Module was intentionall
y
removed
N
/A
Exhaust
f
an
not detecte
d
Power exhaust
f
an control
circuit is not detected
• Logic reconfigured to ignore exhaust fan
operation, althou
g
h maintains settin
g
s in
memor
y
• EF intentionall
y
removed, not deleted
• Exhaust fan rela
y
coil failur
e
• W
i
re harness broken
N/
A
Compressor 1
not detected
Co
ntr
o
l
c
ir
cu
it
co
nn
ec
t
ed
t
o
CC1 is not detecte
d
• 1st sta
g
e of mechanical coolin
g
is impossible
• Inte
g
rated coolin
g
is impossible
• Lo
gi
c and FDD dependent on 1st sta
g
e
i
s
disab
l
ed
•
C
ompressor safet
y
open (LP, HP, current
)
• Com
p
ressor contactor coil failure
• Damage to w
i
re
i
ncreas
i
ng res
i
stance
• Wir
e
h
a
rn
ess
b
r
o
k
e
n
N/
A
Compressor 2
not detected
Control circuit connected to
CC2 is not detecte
d
• 2nd stage of mechanical cooling is impossible
• Lo
g
ic and FDD dependent on 2nd sta
g
e is
d
i
sable
d
• Compressor safet
y
open (LP, HP, current
)
• Com
p
ressor contactor coil failure
• Dama
g
e to w
i
re
i
ncreas
i
n
g
res
i
stance
• Wire harness broken
•
O
nl
y
1 compressor in unit, wiring inadvertentl
y
t
erminated at CC2
,
not delete
d
N
/A
2 Speed fan
not detected
Control circuit connected to
IF
i
s not detecte
d
• Log
i
c recon
fi
gured to h
i
gh speed
f
an operat
i
on
onl
y
, although ma
i
nta
i
ns sett
i
ngs
i
n memor
y
• Low speed
f
an control c
i
rcu
i
t
f
a
i
lur
e
• Wire harness broken
• Dama
g
e to wire increasin
g
resistance
• W
i
re harness broken
N
/A
CO2 sensor
not detected
Sensor previousl
y
installed
is not detecte
d
• Logic reconfigured to ignore DCV configuration,
although ma
i
nta
i
ns sett
i
ngs
i
n memor
y
• Menu reconfi
g
ured to remove DCV associated
e
ntiti
es
• Lowest m
i
n
i
mum pos
i
t
i
on
i
s Vent M
i
n Pos
• CO2 sensor loses power
• Wire harness broken
•
CO
2 sensor electronics failur
e
E
CO2 sensor
out of ran
g
e
Sensor is returning a value
that is not within 250-2200
ppm ran
g
e
• Logic reconfigured to ignore D
C
V configuration,
although maintains settings in memor
y
• Menu reconfigured to remove DCV associated
e
ntiti
es
• Lowest minimum
p
osition is Vent Min Pos
• CO2 sensor out of calibratio
n
• Wire harness broken
• CO2 sensor electronics failur
e
E
Heat and cool
b
ot
h
present
S
i
g
nal present on both Y1
a
n
d
W1
a
t th
e
sa
m
e
t
i
m
e
• Lo
gi
c dependenc
i
es requ
i
r
i
n
g
W1 are d
i
sabled
• Allows Y1 call to be processe
d
• M
i
sw
i
red thermostat
• Thermostat
f
a
i
lur
e
• Wir
e
h
a
rn
ess
s
h
o
rt
• RTU is a heat
p
um
p
, but “Heat Pum
p
O
p
” not
s
et to on
i
n sett
i
n
g
s men
u
N/
A
California Title 24 Fault Detection & Dia
g
nostics Fault Cate
g
orie
s
A
. Air tem
p
erature sensor failure
/
fault
.
B. Not economizin
g
when it should
.
C. Economizin
g
when it should not
.
D. Damper not modulatin
g.
E. Ex
cess
ou
t
doo
r
ai
r
.
Refer to California Energy Commission (CEC) 2013 Building Energy Effi ciency Standard/2013 Title 24/Part 6/Section 120.2
Ca
lif
o
rni
a
Titl
e
24 FDD
Ce
rtifi
ca
ti
o
n N
u
m
be
r BZE124
5