Emerson X-web300 Manual do Utilizador descarregar pdf (Página 82)

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

Pg.82/106

When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input stop the recovery

function: after the rC04 time delay (minimum on time of the recovery function when activated) and before turning off the recovery valve,

one of the step is turned off for the time set in rC02. When the delay is expired the unit turns off the recovery valve and and the

regulation restarts with its normal running condition.

ATTENTION:

For both the circuits: when the compressor are off because of the thermoregulation and the digital input of the recovery function is

active, the recovery valve is disabled.

39.2 UNIT WITH TWO HYDRAULIC CIRCUIT WORKING IN PARALLEL

FUNCTIONING

Par. rC01 = 2 unit with two circuits working in parallel:

The recovery function from the digital inputs is divided in two steps:

UNIT WITH ONE CIRCUIT RUNNING

If the recovery function is enabled and if the condenser temperature/pressure condition are whithin the limits that circuit starts the

recovery when one of the digital inputs is activated. With active digital input the recovery valve of the circuit is on.

UNIT WITH BOTH THE CIRCUITS RUNNING

If recovery function is enabled, if the condenser temperature/pressure condition are whithin the limits the circuit #1 starts the recovery

(recovery valve #1 on) when the digital input #1 is activated and the circuit #2 starts the recovery (recovery valve #2 on) when the digital

input #2 is activated.

After starting, the recovery function will run at least for the time set in parameter rC04 (minimum time with recovery on).

Between the end of a recovery cycle and the next start the unit waits the time set in Par. rC05 before starting it again.

RECOVERY START–STOP OF THE CIRCUITS 1 AND 2 CONFIGURED WITH ONE STEP EACH

Both for recovery start or stop, the delay time rC02 and rC03 are not counted and the recovery valve is immediately turned on or off.

RECOVERY START OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP

Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors), if the thermoregulation requires

to turn on one or more resources and the recovery is activated from the digital input the unit turns on only one step and then waits the

rC02 delay (this delay keep off all the other steps after the recovery is started). After the delay the recovery valve is turned on and, after

the rC03 time (this delay keeps off all the other steps after the recovery is started), the other resources if necessary are turned on.

RECOVERY STOP OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP

Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors). After the rC04 time delay

(minimum on time of the recovery function when activated) if the digital input of the recovery is not active the units stops the new

resources for the time set in rC02. After this delay the recovery valve is turned off and the regulation restarts with its normal running

condition.

RECOVERY START OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED

When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input start the recovery

function: before turning on the recovery valve one of the step (depending on the time running hours), is turned off for the time set in

rC02. After rC02 the recovery valve is turned on. Then, after the rC03 time (this delay keeps off all the other steps after the recovery is

started) the resource forced off if necessary is turned on again.

RECOVERY STOP OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED

When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input stop the recovery

function: after the rC04 time delay (minimum on time of the recovery function when activated) and before turning off the recovery valve,

one of the step is turned off for the time set in rC02. When the delay is expired the unit turns off the recovery valve and and the

regulation restarts with its normal running condition.

ATTENTION:

For both the circuits: when the compressor are off because of the thermoregulation and the digital input of the recovery function is

active, the recovery valve is disabled.

40 CONDENSER TEMPERAURE / PRESSURE CONDITION TO ENABLE/DISABLE

THE RECOVERY CYCLE

The recovery can be disabled depending on the condenser condition to avoid a possible high pressure alarm. The function can be

executed by programming the analogue input as condenser transducer 1 or 2 (Par CF07=0 temperature control or CF07= 1 pewssure

control).

FUNCTIONING

40.1 RECOVERY DISABLED

With the recovery function is activated: if the temperature/pressure is equal or higher than the set rC06 (limit of the recovery cycle) the

recovery cycle, of the circuit detected by that transducer, is disabled. When the recovery is disabled the bottom display shows the

following blinking icons: b1rC = for circuit 1, b2rC = for circuit 2.

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 101 102

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Emerson X-web300 Manual do Utilizador Página 82

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