Location Of The Control And Safety Elements; Commissioning; Checks Prior To Commissioning - Carrier 30PA Installation, Operation And Maintenance Instructions

Ductable air-cooled scroll
chillers and heat pumps

Location of the control and safety elements

30PA/PH control
Device Adjustment Symbol
Inlet water exchanger
probe
Outdoor air probe
Oulet water exchanger
probe
30PA/PH
controller
Compressor discharge
probe
Refrigerant anti-freeze
probe on the exchanger
Outdoor coil pressure
transducer
Low-pressure pressostat 2 bar
High-pressure pressostat 42 bar
12. C
OMMISSIONING

Checks prior to commissioning

- It is advisable to make a complete sketch of the installation including
the location of the unit and all the components used in the hydraulic
circuit (cut-off and safety valves, water fi lter, circulation pump, buffer
tank, etc.). It will be very useful for maintenance and repairs in the
installation (please consult Annex I).
- Verify the absence of any leaks of the refrigerant.
- The following must be verifi ed:
• That the electrical power supply remains constant and that it
corresponds to that featured on the unit data plate.
• That the electric installation has been carried out according to the
electric wiring diagram provided with the unit (consult the chapter
on "Checking before commissioning").
• The correct connection of the sensors supplied with the unit.
• That they are no cables close to heat sources.
- Once the above verifi cations have been carried out, the control circuit
is supplied with voltage by the automatic control switch. It is necessary
to leave the compressor crankcase heater with voltage for 24 hours
before starting the compressor.
- All models are equipped with
scroll type compressors and
have a phase control relay.
Verify that they turn in the
correct direction and, if not,
reverse the power wires.
B1
B2
B3
B4 HP LP
B4
B6
B7
Compr.
LP
HP
Liquid receiver (heat pump)
SCROLL COMPRESSOR.
CHECK SENSE OF ROTATION
COMPRESSEUR SCROLL.
VÉRIFIER LE SENS DE ROTATION
COMPRESOR SCROLL.
COMPROBAR SENTIDO DE GIRO
Expansion
valve
Sight glass
No-return valve
B7
WICHTIG: WIEDERBEHEIZUNG DER
OLWANNE
BEIDER ERSTEN INBETRIEBSETRUNZ ORDER NACH EINER
LANGEN STROMUNTER-BRECHUNG BRINGEN SIE DIE
MASCHINE UNTER SPANNUNG 24 STRUNDERLANG
BEVOR SIE DEN(DIE) KOMPRESSOR(EN) EINSCHALTEN
KOENNEN.
IMPORTANT: CRANKCASE HEATING
FOR THE FIRSTSTART OR AFTER ALONG TIME OUT OF
VOLTAGE PUT THE MACHINE ON LIVE 24 HOURS BEFORE
TO ALLOW THE COMPRESSOR(S) STARTING
IMPORTANT: SURCHAUFFE CARTER D'HUILE
AU PREMIER DÉMARRAGE OU APRÈS UNE ABSCENCE
DE COURANT PROLONGÉE, METTRE LA MACHINE SOUS
T E N S I O N 2 4 H E U R E S A V A N T D ' A U T O R I S E R L E
DÉMARRAGE DU(DES) COMPRESSEUR(S).
IMPORTANTE: RISCALDARE IL CARTER
DELL'OLIO
AL PRIMO AVVIAMENTO U DOPO UNA INTERRUZIONE
PROLUNGATA DELLA ALIMENTAZIONE ELETTRICA,
LASCIARE LA MACCINA SOTTO TENSIONE PER 24 ORE
PRIMA DI AUTORIZZARE L'AVVIAMENTO DEL(DEI)
COMPRESSORE(I).
IMPORTANTE: RECALENTAMIENTO DE
ACEITE DEL CÁRTER
ANTES DEL PRIMER ARRANQUE O DESPUÉS DE UNA
AUSENCIA DE CORRIENTE POR UN LARGO PERIODO DE
TIEMPO, CONVIENE QUE LA UNIDAD ESTÉ CONECTADA
UN MÍNIMO DE 24 HORAS.
E
B1
Differential
pressure
switch
B6 S
B3
Plates
exchanger
Drain
bleeder
Air coil
Outdoor
air
B2
25