ECH 200 BD
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OPERATION IN RESPONSE TO REQUEST:
• The pump comes on in response to a request from the regulation algorithm.
• The compressor comes on following a delay (Pa P02) after the time the pump comes on.
• The pump goes off following a delay (Pa P03) after the regulation algorithm has OFF status.
• During defrosting, when the compressor is OFF, the pump stays on.
TERM: regulation algorithm COMPR: compressor
WP: pump Time: time in seconds
Pa P02: delay compressor-pump off Pa P03: delay pump-compressor on
CYCLIC OPERATION:
The pump is turned on and off independently of the regulation algorithm. It operates for constant intervals of time, as
described below:
• the pump stays on for an amount of time equal to Pa P02 (seconds*10),
• the pump is then turned off and stays off for an amount of time equal to Pa P03 (seconds*10).
The pump is turned off if:
• there is an alarm comporting pump shutdown, such as a manually reset flow switch alarm
• the instrument is on stand-by or OFF
When there is a current flow switch alarm with automatic resetting (refer to table of alarms), the pump will remain on
even if the compressor is OFF due to the alarm..
6.5 Internal anti-freeze/supplementary electrical heaters
Anti-freeze/supplementary heaters are connected up to relay output NO4 (refer to connection diagram).
They are active only if the corresponding parameter, Pa H24, is set to 0.
If the output is configured this way, it will command the electrical heaters to come on and go off in accordance with the
electrical heater configuration parameters, r01…r06, as described in the table below:
Value
Pa. Description
0 1
Pa r01 Defrost configuration comes on only when requested
by control
Always on during defrost
Pa r02 Cooling mode configuration off during cooling On during cooling (depending
on anti-freeze electrical heater
control)
Operation in
response to
request
Cyclic operation
configuration
Pa P03Pa P02
ON
OFF
Time
TERM
ON
OFF
Time
COMPR
ON
OFF
Time
WP
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