ATLAS D ECO COND UNIT
Circulating pump diagnostics
Some faults linked to the circulating pump are signalled by the LED located around the
speed selector (fig. 44 - fig. 45).
Table. 6 - Circulating pump LED indications
Off
Min
.
Circulating pump on STANDBY
1
I
4
II
7
III
Green ON
Circulating pump Working
Green Flashing
Air venting cycle
Green/Red alternating
Circulating pump blocked due to external causes:
- Overvoltage (>270V)
- Insufficient voltage (<160V)
- Motor overload
Red Flashing
Circulating pump blocked due to internal causes:
- Motor blocked
- Damaged electronics
Circulating pump diagnostics (model PARA)
Some faults linked to the circulating pump are signaled by the LED (fig. 45).
LED
Fault
Fault
On with red light
Contact/winding
Under/overvoltage
Excessive module tem-
Flashing with red light
perature
Short circuit
Turbine operation
Dry running
Flashing with red/
green light
Overload
fig. 44
fig. 45
Cause
Cure
Blocked rotor
Activate manual restart or
contact Customer Service
Faulty winding
Supply side voltage too low/high
Check the mains voltage and
Inside of module too hot
conditions of use.
Request Customer Service
Motor current too high
The hydraulic system of pumps
is fed but the pump does not
have mains voltage
Air in pump
Check the mains voltage, the
The motor turns with difficulty.
water flow/pressure as well as
Pump operation not in accord-
the environmental conditions
ance with specifications (e.g.
high module temperature).
The speed is lower than in nor-
mal operation.
cod. 3541Q463 - Rev. 00 - 09/2021
4. TECHNICAL DATA AND CHARACTERISTICS
4.1 Main components, dimensions and connections
32
295
275
fig. 46- Front view
14
11
56
338
a4
10
fig. 47- Side view
ATLAS D ECO 34 COND UNIT
ATLAS D ECO 45 COND UNIT
500
36
278
246
L
L
930
1030
EN
45