Unit - Carrier AQUAFORCE 30XA080-500 Product Data

Guide specifications (cont)
3. Unit shall operate on 3-phase power at the volt-
age shown in the equipment schedule.
4. Control points shall be accessed through termi-
nal block.
5. 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) (30XA080-350) or 150 psig
(1034 kPa) (30XA400-500).
2. Electronic thermal dispersion proof of flow
switch shall be factory installed and wired.
M. Special Features:
Certain standard features are not
when the features designated by * are specified. For
assistance in amending the specifications, contact a
Carrier representative.
* 1. Low Ambient Temperature Head Pressure
Control:
Unit shall be capable of starting and running at
outdoor ambient temperatures down to –20 F
(–29 C) with the addition of antifreeze in the
cooler circuit, wind baffles, and field-installed or
factory-installed solid-state low ambient temper-
ature head pressure control with condenser coil
temperature sensor.
2. Unit-Mounted Non-Fused Disconnect:
Unit shall be supplied with factory-installed,
non-fused electrical disconnect for main power
supply.
3. Optional Condenser Coil Materials:
a. Pre-coated aluminum fin coils:
Shall have a durable epoxy-phenolic coating
to provide protection in mildly corrosive
coastal environments. Coating shall be
applied to the aluminum fin stock prior to the
fin stamping process to create an inert bar-
rier between the aluminum fin and copper
tube. Epoxy-phenolic barrier shall minimize
galvanic action between dissimilar metals.
b. E-Coated aluminum-fin coils:
Shall have a flexible epoxy polymer coating
uniformly applied to all coil surface areas
without material bridging between fins.
Coating process shall ensure complete coil
encapsulation. Color shall be black gloss —
60°, 65-90% per ASTM D523-89. Uniform
dry film thickness from 0.8 to 1.2 mil on all
surface areas including fin edges. Superior
hardness characteristics of 2H per ASTM
D3363-92A and cross hatch adhesion of
4B-5B per ASTM D3359-93. Impact resis-
tance shall
D2794-93). Humidity and water immersion
resistance shall be up to minimum 1000 and
250 hours respectively (ASTM D2247-92
and ASTM D870-92). Corrosion durability
52
applicable
be up to 160 in./lb (ASTM
shall be confirmed through testing to no less
than 3000 hours salt spray per ASTM
B117-90. Coil construction shall be alumi-
num fins mechanically bonded to copper
tubes.
4. Remote Enhanced Display:
Unit shall be supplied with indoor-mounted,
remote, 40-character per line, 16-line display
panel for field installation.
5. Medium Temperature Brine:
Unit shall be factory modified to start and oper-
ate at leaving chilled fluid temperatures between
15 F and 39 F (–9.4 to 3.9 C).
6. Chillervisor System Manager III Multi-Unit
Control:
Field-installed control shall sequence between 2
and 8 chillers in parallel in a single system. Sys-
tem shall control chilled water pumps.
7. Energy Management Control Module:
A factory or field-installed module shall provide
the following energy management capabilities:
4 to 20 mA signals for leaving fluid temperature
reset, cooling set point reset or demand limit
control; 2-step demand limit control (from 0%
to 100%) activated by a remote contact closure;
and discrete input for "Ice Done" indication for
ice storage system interface.
8. Condenser Coil Trim Panels:
Unit shall be supplied with field-installed coil
covers and PVC-coated grilles to protect the
condenser coil and internal chiller components
from physical damage.
9. DataPort™ Control:
Unit shall be supplied with field-installed inter-
face device that allows a non-Carrier controller
to read values in system elements connected to
the CCN Communication Bus using ASCII over
its RS-232 connection.
10. DataLINK™ Control:
Unit shall be supplied with field installed inter-
face device that allows a non-Carrier controller
to read and write values in system elements
connected to the CCN Communication Bus
using ASCII over its RS-232 connection.
11. BACnet™ Translator Control:
Unit shall be supplied with field-installed inter-
face between the chiller and a BACnet Local
Area Network (LAN, i.e., MS/TP EIA-485).
12. LON Translator Control:
Unit shall be supplied with field-installed inter-
face between the chiller and a Local Operating
Network (LON, i.e., LonWorks FT-10A ANSI/
EIA-709.1).