12 Ton 139,920 BTUH 460 Volt 3-Phase Air Conditioning ROTOLOCK Compressor (American Standard, Maneurop, Trane)
Description
Replaces many Trane, American Standard OEM compressors.
Designed with large internal open area to reduce liquid hammering.
Entirely suction cooled, no external cooling required.
Built for long lasting, transient tolerant performance.
Tripod mount on 1, 2 cylinder models. 9.7" square mount 4
cylinder MTZ100 and larger. Rotolock connections; sweat spuds
provided. Run capacitor required for single phase models, not provided.
• Charged with mineral oil
• Capacity rated R22, +45
•F SST
Product Specifications
Horsepower: 12
Voltage: 460/3/60
Rated Load Amps: 21.4
Oil: Mineral
Mount (In.): 9.7 x 9.7
Height (In.): 19.7
Connection Suction (In.): 1 3/4RL-1 1/8
Connection Discharge (In.): 1 1/4RL-3/4
Connection Type: Rotolock connections; sweat spuds provided.
Refrigerant: R22
Capacity (BTUH): 139,920
Engineered Items: Yes
LTL Only: Yes
Replaces Part Numbers:
MT 144 HV4
MT144HV4
MT 144 HV 4
MT 144 HU4
MT 144 HU 4
CARMT144HU4
* Installation
When installing your new compressor, you may need additional copper fittings and tubing in some older model compressors when retro-fitting to new upgraded compressor models.
* Compressor Performance:
BtuH Ratings are based 0n 45 F evaporating temperature 130 F, condensing temperature, 65 F return gas temperature and 95 F, liquid temperature.
Replaces Compressor Part Numbers: CAR
* IMPORTANT!!! - PLEASE NOTE: IDENTIFYING COMPRESSOR FAILURES
Most compressors fail due to system malfunctions, which must be corrected to prevent repeat failures. After a compressor fails, field examination of the failed compressor often will reveal symptoms of system problems. Proper corrections will help eliminate future failures.
* SINGLE PHASE BURN
Two phases of a three-phase motor overheated or burned as a result of the contactor opening only one of its contacts.
Correction:
(1) Replace contactors with properly sized contactors.
(2) Check for proper motor protection.
* HALF WINDING SINGLE PHASE BURN
In a two contactor application, two phases of one half of a three phase motor overheated or burned as a result of one contactor opening only one contact.
Correction:
(1) Replace contactors with properly sized contactors.
* HALF WINDING BURN
Half of all phases on a two contactor three phase motor are overheated or burned due to only one contactor opening.
Correction:
(1) Replace contactors with properly sized contactors.
(2) Check for feed back circuit holding one contactor closed.
* PRIMARY SINGLE PHASE BURN
Only one phase of a three phase motor is overheated or burned as the result of opening one phase on the primary side a delta to wye transformer.
Correction:
(1) Check primary side of a delta to wye main power transformer.
* START WINDING BURN
The start winding only of a single-phase motor is uniformly overheated or burned.
Correction:
(1) Check for proper wiring of compressor.
(2) Check starting capacitor and/or starting relay.
(3) Correct compressor overloading.
* SPOT BURN
A localized burn within a winding, between windings, or from windings to ground. If not the result of mechanical problems, check for spikes or surges of high current flow.
* SHORTED TERMINALS
A break down of the insulation between terminals and compressor body generally the result of over torque terminals.
OPTIONAL PARTS LISTED BELOW: