Carrier AQUASNAP 30RB Manual De Controles Y Soluciones De Defectos página 78

COOLING UNITS
Description Connector/channel
Evaporator pump 1 control J2A / CH19
Evaporator pump 2 control J2A / CH20
Evaporator heater control J2B / CH21
Alarm relay output J3 / CH24
Alert relay output J3 / CH25
Operation or ready-to-start J3 / CH26
relay output
Contact 1: J4 / CH11
Start/stop
Contact 2: J4 / CH12
Setpoint selection
Contact 3: J4 / CH13
Demand limit selection 1
Contact 3 bis: CH9
Demand limit selection 2
User safety loop input J4 / CH15a
Contact 4: J4 / CH14
Heat reclaim selection
Contact 5: J12
Pump operation status
Connection to CCN
HEAT PUMP UNITS
Description Connector/channel
Evaporator pump 1 control J2A / CH19
Evaporator pump 2 control J2A / CH20
Evaporator heater control J2B / CH21
4-way valve A control J2C/ CH22
4-way valve B control J2C/ CH23
Alarm relay output J3 / CH24
Alert relay output J3 / CH25
Operation or ready-to-start J3 / CH26
relay output
Contact 1: J4 / CH11
Start/stop
Contact 2: J4 / CH12
Setpoint selection
Contact 3: J4 / CH13
Demand limit selection 1
Contact 3 bis: CH9
Demand limit selection 2
User safety loop input J4 / CH15a
Contact 4: J4 / CH14
Heating/cooling selection
Contact 5: J5C / CH18
Pump operation status
Connection to CCN J12
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Terminal Board Remarks
PD5-BASE The control can regulate one or two evaporator pumps, and automatically
change over between the two pumps.
PD5-BASE The control can regulate one or two evaporator pumps, and automatically
change over between the two pumps.
PD5-BASE This (and the pipe heater for units without pumps) protects the evaporator
against frost.
PD5-BASE Indicates alarms
PD5-BASE Indicates alerts
PD5-BASE Indicates if the unit is ready to start or operates.
32-33 PD5-BASE This contact is used for unit start/stop. It is only taken into account if the
unit is under remote operation control (rEM).
65-66 PD5-BASE This contact is only taken into account if the unit is under remote operation
control (rEM).
63-64 PD5-BASE See the description of these contacts in sections 3.6.5 and 3.6.6.
NRCP2-BASE This contact is only present if the energy management option is used.
34 - 35 PD5-BASE This contact is mounted in series with the water flow control contact. It can
be used for any customer safety loop that requires that the unit is stopped,
if it is open. If it is unused this contact must be bridged.
PD5-BASE This contact is used to select the heat reclaim mode.
PD5-BASE If this contact is open, the pump is controlled and an alarm has tripped.
An RS-485 bus is used for connection to the CCN.
- Pin 1: signal +
- Pin 2: ground
- Pin 3: signal -
Remarks
Terminal Board
PD5-BASE The control can regulate one or two evaporator pumps, and automatically
change over between the two pumps.
PD5-BASE The control can regulate one or two evaporator pumps, and automatically
change over between the two pumps.
PD5-BASE This (and the pipe heater for units without pumps) protects the evaporator
against frost.
The control regulates the 4-way valve during heat/cool changeover or
PD5-BASE
during defrost cycles.
The control regulates the 4-way valve during heat/cool changeover or
PD5-BASE
during defrost cycles.
PD5-BASE Indicates alarms
PD5-BASE Indicates alerts
PD5-BASE Indicates if the unit is ready to start or operates.
32-33 PD5-BASE This contact is used for unit start/stop. It is only taken into account if the
unit is under remote operation control (rEM).
This contact is only taken into account if the unit is under remote operation
65-66 PD5-BASE
control (rEM).
See the description of these contacts in sections 3.6.5 and 3.6.6.
63-64 PD5-BASE
NRCP2-BASE This contact is only present if the energy management option is used.
34 - 35 PD5-BASE This contact is mounted in series with the water flow control contact. It can
be used for any customer safety loop that requires that the unit is stopped,
if it is open. If it is unused this contact must be bridged.
This contact is used for heating/cooling mode selection. It is only taken into
PD5-BASE
account if the unit is under remote operation control (rEM).
PD5-BASE If this contact is open, the pump is controlled and an alarm has tripped.
PD5-BASE An RS-485 bus is used for connection to the CCN.
- Pin 1: signal +
- Pin 2: ground
- Pin 3: signal -