Carrier Aquasnap 30RQ User Manual

6.5 - Power cable access routing
The power cables for devices are routed into the electrical box
from the side of the electrical cabinet.
A removable aluminium plate on the side of the electrical cabinet
provides access for the power cables.
It is important to check that the power cable bend radius is
compatible with the connection space available inside the electrical
cabinet.
Refer to the certied dimensional drawing for the unit.
6.6 - Field-installed control wiring
IMPORTANT:
Connecting the interface circuits on-site creates certain safety
risks; any modication to the electrical box must ensure the
equipment remains compliant with local regulations.
In particular, precautions must be taken to prevent accidental
electrical contact between the circuits supplied by dierent
sources:
■ The choice of routing and/or insulation characteristics of
the conductors ensures double electrical insulation.
■ The conductors should be fixed together inside the
electrical box to prevent contact between the end of the
conductor and a live part in case of accidental disconnection.
■ See the control manual and the certied electric wiring
diagram supplied with the unit for the eld control wiring
of the following devices:
■ Remote On/O switch
■ Setpoint 1/Setpoint 2 switching,
■ Remote heating/cooling switch
■ Power limitation switch,
■ Locking switch (safety chain),
■ Switch activation, partial heat recovery, (option 49
Desuperheater)
■ Setpoint adjustable by 4-20 mA signal,
■ Operating indicator
■ Fault and alert indicator
■ Customer pump switch control (on/o),
■ Variable speed pump control (0-10 V)
■ Time schedule override, (option 156 EMM)
■ User fault reporting, (option 156 EMM)
■ Second power limitation level switch, (option 156 EMM)
■ End of storage cycle signal, (option 156 EMM)
■ Power limitation control adjustable by 4-20 mA,
(option 156 EMM)
■ Unit shutdown general fault reporting, (CO/HP),
(option 156 EMM)
■ Minor alert signalling, (option 156 EMM)
■ Partial heat recovery pump On/Off control,
(option 156 EMM & 49 Desuperheater)
■ Boiler control (option 156 EMM)
■ Power indication on analogue output (0-10 V),
(option 156 EMM)
■ Specific data RQ/RQP: Electric heater control
(option 156 EMM)
6.7 - Electric power reserve for the user
Control circuit power reserve:
After all possible options have been connected, the CT transformer
ensures the availability of 1 A of power for the control cabling
on-site on 24 V, 50 Hz.
With the electrical plug option, this CT transformer provides
a 230 V, 50 Hz circuit to power laptop battery chargers only,
maximum current of 0.8 A at 230 V
IMPORTANT:
Only connect class I and II equipment to this power socket.
6 - ELECTRICAL CONNECTION
34

Carrier Aquasnap 30RQ Specifications

General

Brand	Carrier
Model	Aquasnap 30RQ
Category	Chiller
Language	English