background image

Figure 2.

Operating envelope

R410A Operating Map - Superheat 

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R410A Operating Map - Superheat 20

°

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Evaporating temperature (°F)

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o

ndensing t

e

mperat

ure (

°F)

General Information

COM-SVN01D-EN

9

Refrigerant Type

CSHD and CSHN/CSHL compressors are approved for use
with R-410A refrigerant only. Any use of hydrocarbon
refrigerants or air is strictly prohibited!

Transportation, Handling, and
Storage

The compressor must be handled in the vertical position
(maximum 15-degree offset from vertical). Should the
compressor be handled in an upside down position, its
suitability for its use can not be guaranteed.

NOTICE

Improper Handling!

Improper handling of the compressor resulting from
being handled or transported in the upside position,
dropped or tipped over could result in internal damage to
the compressor and it is recommended that the
compressor not be put into service.

Damage to compressor or packaging should be reported
to the shipper immediately.

Use a proper method of lifting the compressor, both lifting
ears must be used with a spreader bar.

WARNING

Heavy Object!

Failure to follow instructions below could result in unit
dropping which could result in death or serious injury,

and equipment or property-only damage. Ensure that all
the lifting equipment used is properly rated for the
weight of the unit being lifted. Each of the cables (chains
or slings), hooks, and shackles used to lift the unit must
be capable of supporting the entire weight of the unit.
Lifting cables (chains or slings) may not be of the same
length. Adjust as necessary for even unit lift.

For approximate compressor weight, see

Table 3

.

Spreader bar use is recommended to better balance the
compressor.

Содержание CSHD

Страница 1: ...on starting up and servicing of heating ventilating and air conditioning equipment can be hazardous and requires specific knowledge and training Improperly installed adjusted or altered equipment by a...

Страница 2: ...nt that is used in these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the...

Страница 3: ...gases and extremely corrosive acids WARNING Explosion Hazard Failure to follow these instructions could result in death or serious injury or equipment or property only damage Use only dry nitrogen wit...

Страница 4: ...ed in this document are the trademarks of their respective owners Revision History Updated Model Number Descriptions chapter Updated Torque values table in General Information chapter Updated Oil chan...

Страница 5: ...Inspections 10 Repair Recommendations 11 Mechanical Failure 11 Electrical Failure 12 Two Types of Motor Failures 12 Removal and Installation 13 Removal 13 Compressor Replacement Tandem and Trio Compr...

Страница 6: ...tenance IOM manuals The following table lists these IOMs by unit type Unit Type IOM a a Installation Operation and Maintenance IOM manuals listed here are current as of Februaryl 2015 Check e Library...

Страница 7: ...76 176 MBtu h CSHN 184 184 MBtu h CSHN1 240 240 MBtu h CSHN 250 250 MBtu h CSHN1 315 315 MBtu h CSHN 374 374 MBtu h CSHN CSHL Digit 8 Voltage J 200 230 60 3 K 460 60 3 380 415 50 3 D 575 60 3 X 380 60...

Страница 8: ...it absorbs moistureveryreadily Therefore itisimportanttoproperly handle the oil POE Oil handling guidelines Always use the smallest container size required for the job requirements Always leave the o...

Страница 9: ...transported in the upside position droppedortippedovercouldresultininternaldamageto the compressor and it is recommended that the compressor not be put into service Damage to compressor or packaging...

Страница 10: ...part number Compressor is the correct voltage Compressor ship with items Restrictors for use with tandem and trio compressors Oil equalizer Teflon gaskets WARNING R 410A Refrigerant under Higher Press...

Страница 11: ...em or trio assemblies the suction and discharge lines must NOT be modified except for the use of slip joint couplings Other modification may cause oil return issues and lead to compressor failure Cut...

Страница 12: ...as a mechanical failure Severe If oil test kit is positive with strong pungent odor and dark oil drain and replace oil in all of the non failed compressors Reuse the compressor mounting isolators or...

Страница 13: ...service technician to perform a safe and successful compressor replacement Removal WARNING Pressurized Burning Fluid Failure to follow these instructions could result in death or serious injury Befor...

Страница 14: ...ndem or trio set 1 Only replace the failed compressor 2 On tandem or trio assemblies the suction and discharge lines must not be modified except for the use of slip joint couplings Other modifications...

Страница 15: ...m due to POE oil Remove the rubber plugs only when ready to install the compressor Plug other compressor on tandem or trio compressors Before removing the oil equalizer connection cap place a can pan...

Страница 16: ...osive and could lead to long term problems and equipment damage if not properly removed Tandem two compressors and trio combinations three compressors with uneven compressor combinations requires the...

Страница 17: ...g diagram Ensure that the compressor model terminals are installed on the correct terminals see Figure 12 Proper torque for the terminal screws is 25 in lb Before starting the compressor check the ele...

Страница 18: ...pressurizing the system use an R 410A leak detection device to detect and locate leaks Vacuum Testing and Evacuation Use the procedure as described in the unit Installation Operation and Maintenance...

Страница 19: ...tion and discharge service valves close them during the charging procedure Water chiller units Always operate the chilled water pumps while charging the unit to prevent freezing the evaporator Verific...

Страница 20: ...operating Do not overcharge the unit Recommended system full load superheats unless specified differently in the unit Installation Operation andMaintenancemanual see LiteratureReferenced p 6 is 16 F 2...

Страница 21: ...mpressor superheat subcooling oil sump superheat voltage and amperage Check all of the following on a regular basis System operating conditions System refrigerant charge level Oil levels and oil color...

Страница 22: ...g valve may be stuck and not switched properly bypassing from the high side to the low side of the system this situation is indicated by an extremely warm suction inlet to the compressor Model CSHN374...

Страница 23: ...lywiredintothesystem safety circuit If the motor is believed to be incorrectly phased change two of the three wires PTC Overheat motor over temperature over current Compressor motor drawing too much c...

Страница 24: ...PTC open replace compressor Resistance 0 ohms PTC shorted replace compressor Resistance 2750 ohm Wait until the motor has cooled down and resistance is less than 2750 ohms reconnect and try to reset...

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Страница 28: ...are committed to using environmentally conscious print practices Trane by Trane Technologies NYSE TT a global climate innovator creates comfortable energy efficient indoor environments for commercial...

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