102
At the beginning of the next cooling season, be sure that there
is refrigerant pressure on each circuit before refilling evapora-
tor, add recommended inhibitor, and reset the CB-7 (circuit
breaker heater) (if opened) or restore power.
If system does not have charge at this time, find and repair the
leak. Always assure water is flowing in the evaporator before
charging or evacuating the unit.
Step 5 — Make Electrical Connections
POWER SUPPLY — The electrical characteristics of the
available power supply must agree with the unit nameplate
rating. Supply voltage must be within the limits shown. See Ta-
ble 8 for power entry option. See Tables 9-18 for electrical and
configuration data.
FIELD POWER CONNECTIONS (See Fig. 44) — All pow-
er wiring must comply with applicable local and national codes.
Install field-supplied, branch circuit fused disconnect(s) of a
type that can be locked off or open. Disconnect(s) must be locat-
ed within sight and readily accessible from the unit in compli-
ance with NEC Article 440-14 (U.S.A.). See Tables 9-18 for
unit electrical data.
Maximum wire sizes that the unit terminal block or non-fused
disconnect are listed in Table 8.
POWER WIRING — All power wiring must comply with ap-
plicable local and national codes. Install field-supplied branch
circuit fused disconnect per NEC of a type that can be locked
OFF or OPEN. Disconnect must be within sight and readily ac-
cessible from the unit in compliance with NEC Article 440-14.
In the power box,
7
/
8
in. knockouts are provided for power en-
try. The holes will need to be enlarged to accept the appropriate
conduit. NEC also requires all conduits from a conditioned
space to the power box(es) be sealed to prevent airflow and
moisture into the control box.
The 30XV units with Greenspeed intelligence require 1 or 2
power supplies, depending on the unit and power option
selected. See Tables 9-18 for chiller electrical data. Evaporator
heaters, if factory-installed, are wired in the control circuit.
Heaters on chillers with the optional control transformer will
be capable of operation only when the main power supply to
the chiller is on. On chillers with separate control power, the
heaters are capable of operation whenever the control power is
supplied.
FIELD CONTROL POWER CONNECTIONS (See
Fig. 44) — All units require 115-1-60 control circuit power,
unless the control transformer option is installed.
A field-supplied remote on-off switch or control relay can be
wired into TB5-9 and TB5-10. Contacts must be rated for dry-
circuit applications capable of handling a 24-vac at 50 mA
load.
CARRIER COMFORT NETWORK
®
COMMUNICATION
BUS WIRING (See Fig. 45) — The communication bus wir-
ing is a shielded, 3-conductor cable with drain wire and is field
supplied and installed in the field.
The system elements are connected to the communication bus
in a daisy chain arrangement. The positive pin of each system
element communication connector must be wired to the posi-
tive pins of the system elements on either side of it. This is also
required for the negative and signal ground pins of each
system element. Wiring connections for CCN (Carrier Com-
fort Network) should be made at TB (terminal block) 3. Con-
sult the CCN Contractor’s Manual for further information. See
Fig. 45.
NOTE: Conductors and drain wire must be 20 AWG
(American Wire Gage) minimum stranded, tinned copper.
Individual conductors must be insulated with PVC, PVC/
nylon, vinyl, Teflon*, or polyethylene. An aluminum/polyester
100% foil shield and an outer jacket of PVC, PVC/nylon,
chrome vinyl, or Teflon with a minimum operating tempera-
ture range of –4
F (–20
C) to 140
F (60
C) is required. See
Table 19 for a list of manufacturers that produce CCN bus
wiring that meet these requirements.
It is important when connecting to a CCN communication bus
that a color coding scheme be used for the entire network to
simplify the installation. It is recommended that red be used for
the signal positive, black for the signal negative, and white for
the signal ground. Use a similar scheme for cables containing
different colored wires. At each system element, the shields of
its communication bus cables must be tied together. If the com-
munication bus is entirely within one building, the resulting
continuous shield must be connected to a ground at one point
only. If the communication bus cable exits from one building
and enters another, the shields must be connected to grounds at
the lightning suppressor in each building where the cable
enters or exits the building (one point per building only).
To connect the unit to the network:
1. Turn off power to the control box.
2. Cut the CCN wire and strip the ends of the red (+), white
(ground), and black (–) conductors. Substitute appropri-
ate colors for different colored cables.
3. Connect the red wire to (+) terminal on TB3 of the plug,
the white wire to COM terminal, and the black wire to the
(–) terminal.
4. The RJ14 CCN connector on TB3 can also be used, but is
only intended for temporary connection (for example, a
laptop computer running service tool).
WARNING
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all discon-
nect locations to alert others not to restore power until work
is completed.
IMPORTANT: The 30XV units with Greenspeed
®
intel-
ligence have a factory-installed option available for a
non-fused disconnect for unit power supply. If the unit is
equipped with this option, all field power wiring should
be made to the non-fused disconnect since no terminal
blocks are supplied.
IMPORTANT: The 30XV units with Greenspeed
®
intel-
ligence rated 575V will have compressors rated at 460V.
The compressor VFD will have proper configuration to
accept 575V line power and output 460V to the compres-
sor.
CAUTION
Do not use interlocks or other safety device contacts
connected between TB5-9 and TB5-10 as remote on-off.
Connection of safeties or other interlocks between these
2 terminals will result in an electrical bypass if the
ENABLE-OFF-REMOTE contact switch is in the
ENABLE position. If remote on-off unit control is
required, a field-supplied relay must be installed in the unit
control box and wired as shown in Fig. 44. Failure to wire
the remote on-off as recommended may result in tube
freeze damage.
*Teflon is a registered trademark of Dupont.
Summary of Contents for 30XV140-500
Page 5: ...5 Fig 2 30XV 140 160 180 Std Tier 140 Mid Tier Air Cooled Chiller...
Page 6: ...6 Fig 2 30XV 140 160 180 Std Tier 140 Mid Tier Air Cooled Chiller cont...
Page 7: ...7 Fig 2 30XV 140 160 180 Std Tier 140 Mid Tier Air Cooled Chiller cont...
Page 8: ...8 Fig 3 30XV 140 High Tier 160 180 Mid Tier 200 Std Tier Air Cooled Chiller...
Page 9: ...9 Fig 3 30XV 140 High Tier 160 180 Mid Tier 200 Std Tier Air Cooled Chiller cont...
Page 10: ...10 Fig 3 30XV 140 High Tier 160 180 Mid Tier 200 Std Tier Air Cooled Chiller cont...
Page 11: ...11 Fig 4 30XV 160 180 High Tier 200 Mid Tier Air Cooled Chiller...
Page 12: ...12 Fig 4 30XV 160 180 High Tier 200 Mid Tier Air Cooled Chiller cont...
Page 13: ...13 Fig 4 30XV 160 180 High Tier 200 Mid Tier Air Cooled Chiller cont...
Page 14: ...14 Fig 5 30XV 200 High Tier Air Cooled Chiller...
Page 15: ...15 Fig 5 30XV 200 High Tier Air Cooled Chiller cont...
Page 16: ...16 Fig 5 30XV 200 High Tier Air Cooled Chiller cont...
Page 17: ...17 Fig 6 30XV 225 Std Tier Air Cooled Chiller...
Page 18: ...18 Fig 6 30XV 225 Std Tier Air Cooled Chiller cont...
Page 19: ...19 Fig 6 30XV 225 Std Tier Air Cooled Chiller cont...
Page 20: ...20 Fig 7 30XV 225 Mid Tier Air Cooled Chiller...
Page 21: ...21 Fig 7 30XV 225 Mid Tier Air Cooled Chiller cont...
Page 22: ...22 Fig 7 30XV 225 Mid Tier Air Cooled Chiller cont...
Page 23: ...23 Fig 8 30XV 225 High Tier Air Cooled Chiller...
Page 24: ...24 Fig 8 30XV 225 High Tier Air Cooled Chiller cont...
Page 25: ...25 Fig 8 30XV 225 High Tier Air Cooled Chiller cont...
Page 26: ...26 Fig 9 30XV 250 275 Std Tier Air Cooled Chiller...
Page 27: ...27 Fig 9 30XV 250 275 Std Tier Air Cooled Chiller cont...
Page 28: ...28 Fig 9 30XV 250 275 Std Tier Air Cooled Chiller cont...
Page 29: ...29 Fig 10 30XV 250 275 Mid Tier 300 Std Tier Air Cooled Chiller...
Page 30: ...30 Fig 10 30XV 250 275 Mid Tier 300 Std Tier Air Cooled Chiller cont...
Page 31: ...31 Fig 10 30XV 250 275 Mid Tier 300 Std Tier Air Cooled Chiller cont...
Page 32: ...32 Fig 11 30XV 250 275 High Tier 300 Mid Tier 325 Std Tier Air Cooled Chiller...
Page 33: ...33 Fig 11 30XV 250 275 High Tier 300 Mid Tier 325 Std Tier Air Cooled Chiller cont...
Page 34: ...34 Fig 11 30XV 250 275 High Tier 300 Mid Tier 325 Std Tier Air Cooled Chiller cont...
Page 35: ...35 Fig 12 30XV 300 High Tier 325 Mid Tier Air Cooled Chiller...
Page 36: ...36 Fig 12 30XV 300 High Tier 325 Mid Tier Air Cooled Chiller cont...
Page 37: ...37 Fig 12 30XV 300 High Tier 325 Mid Tier Air Cooled Chiller cont...
Page 38: ...38 Fig 13 30XV 325 High Tier Air Cooled Chiller...
Page 39: ...39 Fig 13 30XV 325 High Tier Air Cooled Chiller cont...
Page 40: ...40 Fig 13 30XV 325 High Tier Air Cooled Chiller cont...
Page 41: ...41 Fig 14 30XV 350 Standard Tier Air Cooled Chiller...
Page 42: ...42 Fig 14 30XV 350 Standard Tier Air Cooled Chiller cont...
Page 43: ...43 Fig 14 30XV 350 Standard Tier Air Cooled Chiller cont...
Page 44: ...44 Fig 15 30XV 350 Mid Tier Air Cooled Chiller...
Page 45: ...45 Fig 15 30XV 350 Mid Tier Air Cooled Chiller cont...
Page 46: ...46 Fig 15 30XV 350 Mid Tier Air Cooled Chiller cont...
Page 47: ...47 Fig 16 30XV 350 High Tier Air Cooled Chiller...
Page 48: ...48 Fig 16 30XV 350 High Tier Air Cooled Chiller cont...
Page 49: ...49 Fig 16 30XV 350 High Tier Air Cooled Chiller cont...
Page 50: ...50 Fig 17 30XV 400 Standard Tier Air Cooled Chiller...
Page 51: ...51 Fig 17 30XV 400 Standard Tier Air Cooled Chiller cont...
Page 52: ...52 Fig 17 30XV 400 Standard Tier Air Cooled Chiller cont...
Page 53: ...53 Fig 18 30XV 400 Mid 450 Standard Tier Air Cooled Chiller...
Page 54: ...54 Fig 18 30XV 400 Mid 450 Standard Tier Air Cooled Chiller cont...
Page 55: ...55 Fig 18 30XV 400 Mid 450 Standard Tier Air Cooled Chiller cont...
Page 56: ...56 Fig 19 30XV 400 High 450 Mid 500 Std Tier Air Cooled Chiller...
Page 57: ...57 Fig 19 30XV 400 High 450 Mid 500 Std Tier Air Cooled Chiller cont...
Page 58: ...58 Fig 19 30XV 400 High 450 Mid 500 Std Tier Air Cooled Chiller cont...
Page 59: ...59 Fig 20 30XV 450 High 500 Mid Tier Air Cooled Chiller...
Page 60: ...60 Fig 20 30XV 450 High 500 Mid Tier Air Cooled Chiller cont...
Page 61: ...61 Fig 20 30XV 450 High 500 Mid Tier Air Cooled Chiller cont...
Page 62: ...62 Fig 21 30XV Split Unit 40A B High 45A B Mid 50A B Standard Tier Air Cooled Chiller...
Page 63: ...63 Fig 21 30XV Split Unit 40A B High 45A B Mid 50A B Standard Tier Air Cooled Chiller cont...
Page 64: ...64 Fig 21 30XV Split Unit 40A B High 45A B Mid 500A B Standard Tier Air Cooled Chiller cont...
Page 65: ...65 Fig 22 30XV Split Unit 45A B High 50A B Mid Tier Air Cooled Chiller...
Page 66: ...66 Fig 22 30XV Split Unit 45A B High 50A B Mid Tier Air Cooled Chiller cont...
Page 67: ...67 Fig 22 30XV Split Unit 45A B High 50A B Mid Tier Air Cooled Chiller cont...
Page 103: ...103 Fig 44 Field Control and Power Wiring...
Page 104: ...104 Fig 44 Field Control and Power Wiring cont...