Internal 33CSUCE-06 relay contacts are rated for 1 amp/24 vac.

*To control heating device and provide automatic indoor- fan operation on heating.

²Jumper removed only when separate 24-v trans- former power source is used to power the 33CSUCE-06 relay pack.

**Field-supplied.

NOTES:

1.Liquid line solenoid valve LLS-A is used for so- lenoid drop on circuit A. Liquid line solenoid valve LLS-B is used for solenoid drop for circuit B.

2.Solenoid drop is a safety feature which pre- vents refrigerant migration to the compressor dur- ing the OFF cycle. It is recommended on all systems and required on systems where piping exceeds 75 ft (22.9 m) in length.

3.The 33CSUCE-06 relay pack requires 10 va.

4.Factory wiring is in accordance with NEC; ®eld modi®cations or additions must be in compli- ance with all applicable codes.

5.Wiring for ®eld power supply must be rated 75 C minimum. Use copper, copper-clad alumi- num, or aluminum conductors. Maximum in- coming wire size for each terminal block is 500 kcmil.

6.Terminal blocks TB3 and TB4 are for external ®eld control connections. Control connections are to be Class 1 wiring.

7.Field-supplied components (IFC, LLS-A, and LLS-B) must have a maximum sealed coil rat- ing of 30 va each (0.25 amp at 120 vac and

0.13 amp at 230 vac). Thermostats must have a minimum pilot duty rating of 300 va (2.5 amps at 120 vac and 1.3 amps at 230 vac).

8.Replacement of factory wires must be with type 105 C wire or its equivalent.

9.Field-supplied liquid line solenoid valves installed at the evaporator are required on all units.

10.Units have 175 va of power available for ®eld- installed accessories.

11.To minimize voltage drop, the following wire sizes are recommended:

LENGTH Ð

INSULATED WIRE Ð AWG

Ft (M)

(35 C Minimum)

Up to 50

No. 18

(15.2)

 

50-75

No. 16

(15.2-22.9)

 

More Than 75

No. 14

(22.9)

 

 

 

LEGEND

AWG

Ð American Wire Gage

CR

Ð Control Relay

HD

Ð Heating Device

IFC

Ð

Indoor-Fan Contactor

IFR

Ð

Indoor-Fan Relay

kcmil

Ð

Thousand Circular Mils

LLS

Ð

Liquid Line Solenoid

NEC

Ð National Electrical Code

 

 

(U.S.A. Standard)

RÐ Heating Relay (®eld- supplied 24-v sealed coil,

RV

Ð

10 va maximum rating)

Reversing Valve

TB

Ð

Terminal Block

 

 

Factory Wiring

 

 

Field Wiring

Fig. 20 Ð Field Wiring, One 2-Stage Thermostat Ð 38AH044-084 Dual-Circuit Units

28

Page 28
Image 28
Carrier 38AH044-084 specifications Length Ð Insulated Wire Ð AWG

38AH044-084 specifications

The Carrier 38AH044-084 is an innovative air conditioning unit designed to provide efficient cooling solutions for residential and light commercial applications. This model is a part of Carrier's Aqua Series and is well-regarded for its combination of performance, energy efficiency, and innovative features.

One of the standout characteristics of the Carrier 38AH044-084 is its high-efficiency rating, which often exceeds the minimum efficiency standards set by the Department of Energy. Its Seasonal Energy Efficiency Ratio (SEER) rating is commendable, indicating significant energy savings over traditional air conditioning units. This efficiency translates to lower utility bills and a reduced carbon footprint, making it an environmentally friendly option.

In terms of technology, the Carrier 38AH044-084 is equipped with a modern scroll compressor. This type of compressor is known for its durability and quiet operation, contributing to a more pleasant indoor environment. The unit also incorporates advanced refrigerant technology, often using R-410A refrigerant, which is recognized for its lower environmental impact compared to older refrigerants like R-22.

The design of the 38AH044-084 focuses on ease of installation and maintenance. The compact footprint makes it suitable for various installation scenarios, whether on rooftops or ground levels. Additionally, the unit is engineered for durability, featuring weather-resistant components that can withstand harsh environmental conditions.

Another notable feature is the advanced airflow system, which ensures even distribution of cooled air throughout the space. This technology minimizes hot spots and enhances overall comfort. Furthermore, the unit supports a range of thermostatic controls, allowing users to customize their cooling experience according to their specific needs.

The Carrier 38AH044-084 is also designed with noise reduction in mind. Its sound-dampening technology helps minimize operational noise, making it a suitable choice for residential areas where noise levels are a concern.

In summary, the Carrier 38AH044-084 offers an excellent combination of energy efficiency, advanced technology, and user-friendly features. Whether for a home or a light commercial space, this unit provides reliable cooling performance while maintaining a focus on environmental responsibility and occupant comfort. With its robust design and innovative capabilities, it's a solid choice for those seeking effective and efficient air conditioning solutions.