Carrier 23 XL installation instructions Copyright 1994 Carrier Corporation

Page 34

IMPORTANT: Wiring shown is typical and not intended to show detail

 

3.3

Pilot relays can control cooler and condenser pump and tower fan motor contactor

 

 

coil loads rated 10 amps at 115 vac up to 3 amps at 600 vac. Control wiring required

for a speci®c installation. Refer to certi®ed ®eld wiring diagrams for

 

 

for Carrier to start pumps and tower fan motors must be provided to assure machine

additional information. Certi®ed drawings are available upon request.

 

 

protection. If primary pump and tower fan motor control is by other means, also

 

 

 

 

 

provide a parallel means for control by Carrier. Do not use starter control trans-

 

LEGEND

 

 

 

former as the power source for pilot relay loads.

 

 

 

3.4

Do not route control wiring carrying 30 v or less within a conduit which has wires

 

Required Power Wiring

Options Wiring

 

 

carrying 50 v or higher or along side wires carrying 50 v or higher.

 

Required Control Wiring

 

 

 

 

 

 

3.5

Voltage selector switch in machine power panel is factory set for 115 v control power

NOTES:

 

 

 

 

 

source. When 230 v control power source is used, set switch to 230 v

I. GENERAL

 

 

 

position.

1.0

Starters shall be designed and manufactured in accordance with Carrier Engineer-

3.6

Control wiring cables between starter and power panel must be shielded with mini-

 

ing Requirement Z-375.

 

 

 

mum rating of 600 v, 80 C. Ground shield at starter.

1.1

All ®eld-supplied conductors, devices, ®eld-installation wiring, and termination of

3.7

Voltage to terminals LL1 and LL2 comes from a control transformer in a starter built

 

conductors and devices, must be in compliance with all applicable codes and job

 

to Carrier speci®cations. Do not connect an outside source of control power to the

 

speci®cations.

 

 

 

compressor motor starter (terminals LL1 and LL2). An outside power source will

1.2

The routing of ®eld-installed conduit and conductors and the location of ®eld-

 

produce dangerous voltage at the line side of the starter, because supplying voltage

 

installed devices, must not interfere with equipment access or the reading, adjust-

 

at the transformer secondary terminals produces input level voltage at the trans-

 

ing, or servicing of any component.

 

 

 

former primary terminals.

1.3

Equipment, installation, and all starting and control devices must comply with de-

IV. POWER WIRING BETWEEN STARTER AND COMPRESSOR MOTOR

 

tails in equipment submittal drawings and literature.

4.0

Low voltage (600 v or less) compressor motors have (6) 1¤2 in. terminal studs (lead

1.4 Contacts and switches are shown in the position they would assume with the circuit

 

connectors not supplied by Carrier). Either 3 or 6 leads must be run between com-

 

deenergized and the chiller shut down.

 

 

 

pressor motor and starter, depending on type of motor starter employed. If only 3

1.5

WARNING Ð Do not use aluminum conductors.

 

 

 

leads are required, jumper motor terminals as follows: 1 to 6, 2 to 4, 3 to 5. Center

1.6

Installer is responsible for any damage caused by improper wiring between starter

 

to center distance between terminals is 2.73 inches. Compressor motor starter must

 

have nameplate stamped as to conforming with Carrier requirement ``Z-375.''

 

and machine.

 

 

 

 

 

 

4.1

When more than one conduit is used to run conductors from starter to compressor

II. POWER WIRING TO STARTER

 

 

 

 

 

motor terminal box, one conductor from each phase must be in each conduit, to

2.0

Power conductor rating must meet minimum unit nameplate voltage and compres-

 

prevent excessive heating. (e.g., conductors to motor terminals 1, 2 and 3 in one

 

sor motor RLA (rated load amps).

 

 

 

conduit, and these to 4, 5 and 6 in another.)

 

When (3) conductors are used:

 

 

4.2

Compressor motor power connections can be made through top, bottom, or right

 

Minimum ampacity per conductor = 1.25 x compressor RLA

 

side of compressor motor terminal box by rotating the terminal box and using holes

 

When (6) conductors are used:

 

 

 

cut by contractor to suit conduit. Flexible conduit should be used for the last few feet

 

Minimum ampacity per conductor = 0.721 x compressor RLA

 

to the terminal box for unit vibration isolation. Use of stress cones or 12 conductors

2.1

Lug adapters may be required if installation conditions dictate that conductors be

 

larger than 500 MCM may require an oversize (special) motor terminal box (not

 

supplied by Carrier). Lead connections between 3-phase motors and their

 

sized beyond the minimum ampacity required. Contact starter supplier for lug

 

 

 

starters must not be insulated until Carrier personnel have checked compressor

 

information.

 

 

 

 

 

 

 

rotation.

2.2 Compressor motor and controls must be grounded by using equipment grounding

 

4.3

Compressor motor frame to be grounded in accordance with the National Electrical

 

lugs provided inside starter enclosure.

 

 

 

 

 

 

Code (NFPA-70) and applicable codes. Means for grounding compressor motor is

 

 

 

 

 

III. CONTROL WIRING

 

 

 

(2) Thomas and Betts pressure connectors for 350 to 800 MCM wire, supplied and

3.0

Field supplied control conductors to be at least 18 AWG (American Wire Gage) or

 

located in the back upper and lower right side corners of the compressor motor

 

terminal box.

 

larger.

 

 

 

 

 

 

4.4

Do not allow motor terminals to support weight of wire cables. Use cable supports

3.1

Chilled water and condenser water ¯ow switch contacts, optional remote start

 

and strain reliefs as required.

 

device contacts and optional spare safety device contacts, must have 24 vdc rating.

 

 

4.5

Use back up wrench when tightening lead connectors to motor terminal studs. Torque

 

Max current is 60 ma, nominal current is 10 ma. Switches with gold plated

 

biurcated contacts are recommended.

 

 

 

to 10-15 lb-ft maximum.

3.2Remove jumper wire between 12A and 12B before connecting auxiliary safeties be- tween these terminals.

→Fig. 35 Ð 23XL Typical Field Wiring with Free-Standing Starter (Frame 1 and 2 Machines Shown)

Copyright 1994 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, speci®cations or designs without notice and without incurring obligations.

Book

2

 

PC 211

Catalog No. 532-303

Printed in U.S.A.

Form 23XL-2SI

Pg 34

796

9-94

Replaces: 23XL-1SI

Tab

5e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 33 Page 35
Image 34
Page 33 Page 35
Contents Installation Instructions Contents Typical 23XL Installation Frame 1 and 2 Machines Typical 23XL Installation Frame 4 Machine Size Options EnglishMachine Rigging Guide Frame 4 Machines Heat Exchanger Length Overall Nozzle Pipe Size Width Height SizeHeat Exchanger Length Overall Width HeightComponent Frame 1 Compressor Size AssemblyUnit CompressorExchanger Description Heat Exchanger Waterbox PSI Frame DescriptionHeat Waterbox CoolerPage 23XL Drive End View Frame 1 and 2 Machines 23XL Top View Frame 1 and 2 Machines 23XL Top View Frame 4 Machines Motor Cooling Drain Section Frame 4 Machines Install Machine Supports Standard Isolation Connect Piping Typical Nozzle Piping Nozzle Arrangement Codes Nominal Pipe Actual Pipe FramePiping Flow Data Frame Nominal Pipe Actual Pipe Frame PassTrade QTY Location Size Weight ASHRAE/ANSI SizeTank Size AnsiPage Page Pumpout Unit Page Page Page Carrier Comfort Network Communication Bus Wiring Manufacturer Cable noInstall Field Insulation Typical COMM1 CCN Communication Wiring for Multiple Chillers 23XL Insulation Area for Frame 1 and 2 Machines General Copyright 1994 Carrier Corporation Installation START-UP Request Checklist Testing YES/NO Date to be Completed

23 XL specifications

The Carrier 23 XL series is an advanced line of air conditioning units designed for optimal cooling performance and energy efficiency. This unit stands out in the HVAC industry due to its integration of cutting-edge technologies and user-friendly features.

One of the main features of the Carrier 23 XL is its use of the Greenspeed Intelligence technology. This innovative system allows the unit to modulate its cooling output based on the actual needs of the environment, resulting in significant energy savings. By adjusting the compressor speed, the 23 XL can maintain a consistent temperature without the energy spikes common in traditional air conditioning systems.

Another notable characteristic of the Carrier 23 XL is its high SEER rating, which stands for Seasonal Energy Efficiency Ratio. The 23 XL boasts a SEER rating of up to 24, making it one of the most efficient units available on the market. This efficiency translates to lower utility bills and a reduced carbon footprint, which is a crucial consideration in today’s sustainability-focused world.

The Carrier 23 XL is also equipped with a variable-speed compressor, which enhances its overall performance. This component allows for quieter operation, providing comfortable indoor conditions without noise disturbances. Homeowners can enjoy peace and quiet while the system operates seamlessly in the background.

Moreover, the Carrier 23 XL features advanced air filtration capabilities. The unit is designed with high-efficiency filters that capture dust, pollen, and other airborne particles, improving indoor air quality. This feature is particularly beneficial for individuals with allergies or respiratory conditions, as it ensures a healthier living environment.

The sleek and compact design of the Carrier 23 XL makes it suitable for various installation configurations, maintaining aesthetic appeal without sacrificing performance. Additionally, it offers a range of smart features, such as compatibility with Wi-Fi-enabled thermostats, allowing users to control their home environment remotely via smartphone applications.

Finally, Carrier’s commitment to quality and reliability is evident in the 23 XL model. With robust construction and a warranty that provides peace of mind, homeowners can trust that their investment will deliver comfort and efficiency for years to come. Overall, the Carrier 23 XL is an exceptional choice for those seeking a blend of advanced technology, energy efficiency, and superior indoor comfort.
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