Carrier Aquasnap 30RAP010, Product Data

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d) The chiller controller shall include
multiple connection ports for com-
municating with the local equipment
network, the Carrier Comfort
Network
® (CCN) system and access
to chiller control functions from any
point on the chiller.
e) The control system shall allow soft-
ware upgrade without the need for
new hardware modules.
4. Safeties:
a. Unit shall be equipped with thermistors and
all necessary components in conjunction
with the control system to provide the unit
with the following protections:
1) Loss of refrigerant charge.
2) Reverse rotation.
3) Low chilled fluid temperature.
4) Thermal overload.
5) High pressure.
6) Electrical overload.
7) Loss of phase.
b. Factory pump motors shall have external
overcurrent protection.
I. Operating Characteristics:
1. Unit shall be capable of operating down to
–20 F (–29 C) on size 010 and 015 units, 45 F
(7 C) on size 018-030 units, and 32 F (0° C) on
size 035-090 units as standard.
2. Unit shall be capable of starting and running at
outdoor ambient temperatures up to 120 F
(50 C) for all sizes. Unit shall additionally be
able to stay online when running with a 125 F
(52 C) ambient temperature.
3. Unit shall be capable of starting up with 95 F
(35 C) entering fluid temperature to the cooler.
J. Fan Motors:
1. Condenser fans shall be direct drive Aero-
Acoustic™ type, discharging air vertically
upward.
2. All condenser fan motors shall be totally
enclosed 3-phase type with permanently lubri-
cated ball bearings, class F insulation and inter-
nal, automatic reset thermal overload
protection or manual reset calibrated circuit
breakers.
3. Shafts shall have inherent corrosion resistance.
4. Fan blades shall be statically and dynamically
balanced.
5. Condenser fan openings shall be equipped with
PVC coated steel wire safety guards.
K. Electrical Requirements:
1. Unit/module primary electrical power supply
shall enter the unit at a single electrical box
(includes option for dual point connection on
sizes 070-090).
2. Unit shall operate on 3-phase power at the volt-
age shown in the equipment schedule.
3. Control points shall be accessed through termi-
nal block.
4. Unit shall be shipped with factory control and
power wiring installed.
L. Chilled Water Circuit:
1. Chilled water circuit shall be rated for 300 psig
(2068 kPa). Units with optional pump package
are rated for 150 psig (1034 kPa) working
pressure.
2. Solid-state flow monitor with integral relay shall
be factory installed and wired.
3. Brass body strainer with 40 mesh screen and
ball type blow down.
4. Optional hydronic package (Applies to all unit
sizes except as noted, with or without the use of
a VFD.):
a. Field pipe connections shall be copper Vic-
taulic type.
b. Optional single or primary/stand-by opera-
tion pump systems. Dual pump systems shall
have a pump discharge check valve.
c. Pumps shall be single stage design, capable
of being serviced without disturbing piping
connections.
1) Pump casing shall be of class 30 cast
iron.
2) The impeller shall be of cast bronze,
closed type, dynamically balanced,
keyed to the shaft and secured by lock-
ing cap screw.
3) The hydronic kit will be provided with
a flush line connection to ensure lubrica-
tion at the seal face and allow for
positive venting of the seal chamber.
4) Pump shall be rated for 150 psig
(1034 kPa) working pressure.
5) The pump case shall have gage tappings
at the suction and discharge nozzles and
include drain ports.
6) Motors shall totally enclosed 3-phase
type with grease lubricated ball bearings.
7) Each pump shall be factory tested per
Hydraulic Institute Standards.
8) Pump motors shall be VFD (variable fre-
quency drive) compatible.
d. Fluid expansion tank (sizes 010-060) shall be
factory installed within the chiller cabinet
insulates, pre-charged and rated for a maxi-
mum working pressure of 150 psig
(1034 kPa).
e. Water pressure taps (2) shall be factory
installed across the cooler and rated for
150 psig (1034 kPa).
f. Balancing valve shall be factory installed to
set flow gage ports shall be factory installed
and rated for 300 psig (2068 kPa).