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8. PROBLEMS, CAUSES AND REMEDIES
In case of system faults perform the following checks :
- Check for presence of foreign matter in the reservoir (in the bell).
- Check electrical connection (faulty fuse).
Indication in display
P1: Therm. fault 1
Winding protection contact (WSK) of pump 1
P2: Therm. fault 1
or 2 has tripped (contact between terminals
31/32 or 38/39 has opened)
P1: Therm. fault 2
Winding protection contact (WSK) of pump 1
P2: Therm. fault 2
or 2 has tripped (contact between terminals
32/33 or 39/40 has opened)
P1 : or P2 :
The set motor limiting value has been excee-
Overcurrent
ded
P1 : or P2 : no load
Phase L2 is not present or the control is opera-
ted without load
Max. water level alarm
Level has exceeded the max. water level setting
Max. water level float
Contacts of the float switch for max. water
level are closed, both pumps are activated or
are already active.
Runtime alarm
Triggered after third runtime changeover
Switch-on point
The settings for switch-on and switch-off point
below switch-off point
overlap
Max. water level
The setting for the max. water level alarm lies
below switch-on point
below the switch-on point
Switch-on point
The switch-on point of the base load pump
above peak load
lies above the switch-on point of the peak
load pump
Faulty operation of
Plausibility check, float switches not connec-
float switch
ted in correct order
Interface < 3 mA
Current signal less than 3 mA
If the malfunction cannot be removed, please consult your sanitary and heating specialist or SALMSON Customer Service
9. RETROFITS AND ACCESSORIES
9.1 Accessories
Accessories must be ordered separately.
- Electronic level sensor 0-1 mWS (4-20mA) with 10, 30 or 50m
connection cable.
- Safety barrier (zener barrier) in housing with connection cable
- Float switch.
- Isolating switch amplifier for float switch for use in potentially explo-
sive areas.
- Switch cabinet for outdoor installation (other accessories, e.g. swit-
ch cabinet heater, FI protection switch etc. available.
9.2 Assembly
- Mount switchgear.
- Perform settings.
- Functional check and start-up.
9.3 Electronic level IPAE sensor with zener barrier
For use in potentially explosive areas, a safety barrier (zener barrier)
must be inserted between the sensor and the switch box.
9.3.1 Assembly
Electrical connection to terminals 25 and 26 :
The connection is made as follows :
- Isolate control box from the power supply.
- Remove terminal cover from control box.
- Open housing with zener barrier.
- Connect electronic sensor to zener barrier.
- Connect the connecting cables of the zener barrier to terminals 25
Fault description
If faults have occurred, they are shown alternately in the bottom line
on the display.
Check pump; if clogged, remove foreign matter, if present. Check motor for sufficient
cooling (dry run)
Check pump; if clogged, remove foreign matter, if present. Check motor for sufficient
cooling (dry run)
Check motor current and set rated current; correct, if necessary
Check power supply; check pump and pump cable
Check pump for function or level setting
Check pumps for function or check float switch
Check pumps for function
Check level settings
Check level settings
Check level settings
Check float switches, check electrical connections
Check level sensor, check electrical connections
and 26 in the control box.
- Connect zener barrier to the potential equalisation (PA) (min. 4.0
mm
cooper).
2
Strictly follow the safety precautions for the zener
ATTENTION !
barrier.
- Close housing covers.
- Functional check and start-up.
Subject to technical alterations !
21
Remedy
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