FIELD CONTROL WIRING — Install a Carrier-approved accessory thermostat assembly according to installation instructions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense aver- age temperature in accordance with thermostat installation instructions.

Route thermostat cable or equivalent single leads of colored wire from subbase terminals to low-voltage connections on unit (shown in Fig. 6) as described in Steps 1 through 3 below.

NOTE: For wire runs, use the following insulated wire:

LENGTH

INSULATION

 

SIZE

Ft

M

RATING (C)

AWG

 

sq mm

0-50

0-15.2

35

18

 

0.82

50-75

15.2-22.9

35

16

 

1.30

Over 75

Over 22.9

35

14

 

2.08

LEGEND

AWG — American Wire Gage

All wire larger than no. 18 AWG cannot be directly con- nected to the thermostat and will require a junction box and splice at the thermostat.

1.Connect thermostat wires to screw terminals of low- voltage connection board.

2.Pass the control wires through the hole provided in the corner post. (See Fig. 7.)

3.Feed wire through the raceway built into the corner post and into the 24 v thermostat connection board. The 24 v thermostat connection is located on the left side of the low-voltage connection compartment. The raceway pro- vides the UL required clearance between high- and low- voltage wiring.

LEGEND

AHA — Adjustable Heat Anticipator

C— Contactor, Compressor CAP — Capacitor

CB

— Circuit Breaker

CC— Cooling Compensator CLO — Compressor Lockout COMP — Compressor Motor HPS — High-Pressure Switch

IFC

— Indoor (Evaporator) Fan Contactor

LLSV

— Liquid Line Solenoid Valve

LPS

—

Low-Pressure Switch

NEC

—

National Electrical Code

OFC

—

Outdoor-Fan Contactor

 

OFM

—

Outdoor-Fan Motor

QT

—

Quadruple Terminal

TB

—

Terminal Block

TRAN

—

Transformer

Field Splice

Marked Wire

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Factory Wiring

Field Control Wiring

Field Power Wiring

Accessory or Optional Wiring

To indicate common potential only.

Not to represent wiring. Ground

24-V BARRIER

LOW-VOLTAGE THERMOSTAT CONNECTION BOARD

RACEWAY

CORNER

POST

Fig. 7 — Field Control Wiring Raceway

(38AKS Unit Shown)

Total combined amperage drain of the field-installed liquid line solenoid valve and indoor (evaporator) fan contactor must not exceed 22 va. If the specified va must be exceeded, use a remote relay to switch the load.

Fig. 6 — Typical Control Wiring Connections/Component Arrangement (38AK Shown)

8

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Image 8
Carrier 38AKS009, 38AK007, 38AKS012 Field Control Wiring Raceway 38AKS Unit Shown, Length Insulation Size Rating C AWG
Page 7 Page 9

38AK012, 38AKS009, 38AKS012, 38AKS008, 38AK008 specifications

The Carrier 38AK007 is a state-of-the-art air conditioning system designed for optimal comfort, efficiency, and reliability, making it a standout choice for residential and commercial applications. This model exemplifies Carrier's commitment to innovation and energy efficiency, catering to diverse cooling needs.

One of the key features of the Carrier 38AK007 is its high energy efficiency ratio (EER), which ensures lower energy consumption and reduced utility bills. With advanced inverter technology, this unit adjusts its cooling output based on the current requirements, thereby minimizing energy waste. This makes it an environmentally friendly option, contributing to lower greenhouse gas emissions while providing effective cooling.

The Carrier 38AK007 is also equipped with a variable-speed compressor, which enhances its performance and reliability. The compressor operates at different speeds, allowing the system to maintain a consistent room temperature without the peaks and valleys associated with traditional systems. This ensures not only increased comfort but also quieter operation, making it ideal for homes, offices, and other noise-sensitive environments.

In terms of technological innovation, the Carrier 38AK007 features Smart Thermostat compatibility, allowing users to control their cooling settings remotely via a smartphone or tablet. This integration with smart home systems provides users with added convenience, enabling them to adjust temperature settings from anywhere, ensuring optimal comfort even before arriving home.

The model is built with a robust and durable construction, featuring weather-resistant materials that withstand various environmental conditions. This durability ensures a long lifespan, reducing the frequency and costs of maintenance. Additionally, the Carrier 38AK007 includes a multi-stage filtration system that effectively captures allergens and pollutants from the indoor air, improving overall air quality.

Overall, the Carrier 38AK007 is designed to meet the modern demands for energy efficiency, user control, and durability. Its combination of advanced technologies, such as inverter technology and smart home compatibility, along with high performance and air quality features, makes it an excellent choice for anyone looking to invest in a reliable cooling solution. Whether for a residential setting or a commercial space, the Carrier 38AK007 stands out as a leader in the air conditioning market.
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