Table of Contents
Advertisement
Monobloc Outdoor Unit
8.3.3. Water Pump override [P081]
The following table includes water pump overrides which are used to ensure the proper functioning of the
unit.
#
Override
-1
Pump Disabled
Compressor still
1
running
2
Flow Switch Failure
3
Stopping Delay
4
Anti-sticking
5
Low OAT
6
Very Low OAT
7
Defrost active
8
Boiler active
9
DHW Active
10
Master/Slave
11
Water Sampling
12
Purge
Conditions
No pump is configured
Compressor is requested to stop
but is still running
No water flow detected
Pump is requested to stop
Anti-sticking function is enabled
and pump has not run for 24 hours.
Pump is not running <AND>
OAT < MinimumCoolLWT +
AntiFreezeDeltaSetpoint [P517] +
4K (AntiFreezeDeltaSetpoint is 0 K
by default)
Pump is not running <AND> OAT
< MinimumCoolLWT +
AntiFreezeDeltaSetpoint [P517] +
4K <AND> EWT or LWT <
MinimumCoolLWT +
AntiFreezeDeltaSetpoint [P517] +
1K (AntiFreezeDeltaSetpoint is 0 K
by default)
Defrost is active
Boiler active and Compressor is
not running
a) DHW Active <AND> dhw_type =
1 or 2 (Par.701) <AND>
Compressor is running b) DHW
Active <AND> dhw_type = 1 or 2
(Par.701) <AND> Compressor is
stopped c) DHW Active <AND>
dhw_type = 3 (Par.701)
Master/Slave is active <AND> unit
is Slave <AND> "PMP" parameter
is forced by the Master.
Satisfied state and Water Sampling
logic is selected (Par.565=2)
Purge Mode active
60
Service Manual
Action
Do nothing
Keep running the pump
Stop the pump; do not allow the
compressor to run.
Continue to run the pump for 30
seconds, and then stop it.
Run the pump for 30 seconds
Run the pump at maximum
configured speed for 1 minute
every 15 minutes
Run the pump continuously at
maximum configured speed
Run the pump at maximum speed
Stop the pump
a) Run the Pump at configured
speed for DHW (Par.710)
b) Run the Pump at minimum
speed (Par.567) c) Stop the pump
Pump is controlled by the master
Run the pump for 2 minutes every
Par.564 minutes.
Run the pump continuously at
maximum speed regardless of the
Water Flow status
Advertisement
Table of Contents
