80
80
Service Instructions Safety Cabinet HERAsafe KS / KSP
Service Instructions Safety Cabinet HERAsafe KS / KSP
A
A
.
.
I
I
n
n
s
s
t
t
a
a
l
l
l
l
a
a
t
t
i
i
o
o
n
n
t
t
e
e
s
s
t
t
/
/
R
R
e
e
p
p
e
e
a
a
t
t
t
t
e
e
s
s
t
t
Accuracy of the testing equipment
Accuracy of the testing equipment
Accuracy of ± 0.01 m/s (± 2 ft/min) or a maximal deviation of
Accuracy of ± 0.01 m/s (± 2 ft/min) or a maximal deviation of
3 % from the indicated airflow velocity.
3 % from the indicated airflow velocity.
T
Test
est measurement
measurement
1.
1. Inst
Install th
all the test
e testing eq
ing equipm
uipment.
ent.
2.
2. Move th
Move the front w
e front window to
indow to the meas
the measurement
urement positio
position and
n and
operate the air system blower for approx 20 minutes.
operate the air system blower for approx 20 minutes.
3.
3. Perf
Perform t
orm the me
he measu
asurem
rement
ents.
s.
4.
4. Evaluat
Evaluate t
e the
he individu
individual
al measurem
measurements.
ents.
Calculating the average value for inflow velocity V
Calculating the average value for inflow velocity V
1
1
Sum
Sum of
of measuring
measuring values
values
Number
Number of
of measuring
measuring points
points
This factor is listed on the device nameplate.
This factor is listed on the device nameplate.
Acceptable values
Acceptable values
Application in USA/Canada (NSF 49, Annex F):
Application in USA/Canada (NSF 49, Annex F):
••
The
The nom
nomina
inal va
l value
lue is
is 0.53
0.53 m/s
m/s (105
(105 ft/
ft/min
min).
).
••
The av
The average v
erage value m
alue must be w
ust be within
ithin ± 0.025
± 0.025 m/s (5
m/s (5 ft/m
ft/min) of t
in) of the nom
he nominal v
inal value.
alue.
Troubleshooting
Troubleshooting
••
Adju
Adjust the ex
st the exhaust b
haust blowe
lower speed b
r speed by chang
y changing va
ing value S0
lue S02 (see S
2 (see Secti
ection 14.3
on 14.3))
••
Check
Check the ex
the exhaust b
haust blower
lower control
control voltag
voltage at
e at master
master board.
board. The co
The control v
ntrol voltage
oltage
in the value range of 0-10 V changes with the settings in S02. The control
in the value range of 0-10 V changes with the settings in S02. The control
voltage of the exhaust blower must be
voltage of the exhaust blower must be coordinated with the settings in S02.
coordinated with the settings in S02.
••
Re
Repla
place
ce the
the ex
exhau
haust
st fi
filt
lter
er..
••
Chec
Check the ins
k the install
talled exha
ed exhaust sy
ust system fo
stem for correc
r correct funct
t function. If i
ion. If insta
nstalled, c
lled, change
hange
the size of the draft interruptor or check the exhaust plenum (air door) for
the size of the draft interruptor or check the exhaust plenum (air door) for
correct function.
correct function.
Average =
Average =
/
/ 3.33 x factor
3.33 x factor
Summary of Contents for HERAsafe KS
Page 118: ...117 117 ...