fisair HEF2 SERIES, Installation And Maintenance Manual

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HEF2 Series MANUAL
47
Pump materials
Components Type 5b (60W) Type 5c (125W) Type 5d (240W)
Main hydraulic body Polypropylene
Hydraulic body tubes Stainless steel AISI-304
Shaft Stainless steel AISI-420
Fasteners Stainless steel AISI-316
Impeller Acetal resin (POM)
Motor housing Polypropylene Aluminium Aluminium
11.2 D. Level detector electricity connection
1. Minimum level detector (low level S1):
Level detector must be connected to protect the water
pump working. Water level in basin is detected by this
level detector (J17 sensor indicates minimum water level
NO, take a look on CCB2.0 or CCE2.0 manual).
2. Maximum level detector (high level S2):
The maximum level is used as a security system in a float
valve regulation water feed possible failure event. It must
not be used to regulate the fresh water inlet.
I
n case the
equipment has a filling solenoid valve, connect it to this
level so that it is cut for safety (J16 sensor indicates
maximum water level NC, take a look on CCB2.0 or
CCE2.0 manual).
Remark: Max Voltage: 175 Vcc / 110 Vca
Max Current: 1 Acc
Temperature: -20...120ºC
Min. Density: 0, 75 gr/cm
3
Figure 1: Explanatory diagram to confirm which
components are managed by levels S1 and S2.
It’s not a
unifilar diagram .
N.C. = normally closed ALTO= High level S2
N.A. = normally open BAJO= Low level S1
C= Common
Example connection to CCB2.0 or CCE2.0
Not
Co
n
n
e
c
te
d
C
-S2
C
-S1