Carrier GA7T Скачать руководство пользователя страница 8 | Manualshive

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Carrier GA7T Скачать руководство пользователя страница 8

©

2022 Carrier. All rights reserved.

A Carrier Company

Edition Date: 03/22

Catalog No: GA7T-01SI

Replaces:New

GA7T: Installation Instructions

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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MAJOR COMPONENTS

2-Stage Compressor

The 2-stage compressor contains motor windings that provide 2-pole

(3500 RPM) operation.

Compressor Internal Relief

The compressor is protected by an internal pressure relief (IPR) which

relieves discharge gas into compressor shell when differential between

suction and discharge pressures exceed 550 - 625 psi. The compressor is

also protected by an internal overload attached to motor windings.

Compressor Control Contactor

The contactor has a 24 volt coil and is controlled by Y1 input from the

thermostat

CARE AND MAINTENANCE

For continuing high performance and to minimize possible equipment

failure, periodic maintenance must be performed on this equipment.
Frequency of maintenance may vary depending upon geographic areas,

such as coastal applications. See Owner’s Manual for information.

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Содержание GA7T

Страница 1: ...city 3 Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends 4 Leave some slack between structure and unit to absorb vibration 5 When passing refrigerant tubes through the wall seal opening with RTV or other pliable silicon based caulk See Fig 1 6 Avoid direct tubing contact with water pipes duct work floor joists wall studs floors and walls 7 Do not suspend refrige...

Страница 2: ...edown Knockout Locations Outdoor units may be connected to indoor section using accessory tubing package or field supplied refrigerant grade tubing of correct size and condition Rated tubing diameters shown in Table 1 are recommended up to 80 ft 24 38 m See Product Data for acceptable alternate vapor diameters and associated capacity losses For tubing requirements beyond 80 ft 24 38 m substantial ...

Страница 3: ...uum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of accurately measuring this vacuum depth The deep vacuum method is the most positive way of assuring a system is free of air and liquid water A tight dry system will hold a vacuum of 1000 microns after approximately 7 minutes See Fig 4 A95424 Fig 4 Deep Vacuum Graph Final Tubing Check IMPORTANT ...

Страница 4: ...ass 2 and must be separated from incoming power leads Use furnace transformer fan coil transformer or accessory transformer for control power 24v 40va minimum NOTE Use of available 24v accessories may exceed the minimum 40va power requirement Determine total transformer loading and increase the transformer capacity or split the load with an accessory transformer as required Final Wiring Check IMPO...

Страница 5: ...e R 410A refrigerant Air Conditioner A09278 A09279 Fig 7 Generic Wiring Diagrams See thermostat Installation Instruction for specific unit combinations A09306 Thermidistat w Variable Speed Fan Coil 2 Stage Air Conditioner Thermidistat w Variable Speed Furnace 2 Stage Air Conditioner Single Stage Furnace with 2 Stage Air Conditioner 2 Stage Thermostat with Single Stage Furnace and 2 Stage Air Condi...

Страница 6: ...o the furnace Installation Instructions for details of how to use this feature Airflow Selection for FV4C Fan Coils The FV4C provides high and low stage blower operation to match the capacities of the compressor at high and low stage To select recommended airflow refer to the FV4C Installation Instructions The FV4C utilizes a control board that allows the installing technician to select proper air...

Страница 7: ...d then be appropriate for the system to achieve rated capacity The charge level could then be checked at another time when the both indoor and outdoor temperatures are in a more favorable range NOTE If line length is beyond 80 ft 24 38 m or greater than 20 ft 6 10 m vertical separation See Long Line Guideline for special charging requirements Final Checks IMPORTANT Before leaving job be sure to do...

Страница 8: ... an internal pressure relief IPR which relieves discharge gas into compressor shell when differential between suction and discharge pressures exceed 550 625 psi The compressor is also protected by an internal overload attached to motor windings Compressor Control Contactor The contactor has a 24 volt coil and is controlled by Y1 input from the thermostat CARE AND MAINTENANCE For continuing high pe...

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