Toshiba Estia RUA-CP1701H, Руководство по обслуживанию

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