Carrier 40QAC installation instructions Installation

Page 9

Operating Range

Ensure that the system operates within the application guidelines shown in the following tables.

Cooling operating range:

 

Maximum

Minimum

 

DB

WB

DB

WB

 

_F (_C)

_F (_C)

_F (_C)

_F (_C)

Outdoor Unit

125

---

55

---

(51.7)

(12.8)

 

 

 

Indoor Unit

95

71

67

57

(35)

(21.7)

(19.4)

(13.9)

 

Heating operating range:

 

Maximum

Minimum

 

DB

WB

DB

WB

 

_F (_C)

_F (_C)

_F (_C)

_F (_C)

Outdoor Unit

75

67

---20

---

(23.9)

(19.4)

( ---28.9)

 

 

Indoor Unit

80

71

55

---

(26.7)

(21.7)

(12.8)

 

 

Accessories

An extensive list of field installed accessories is available for both indoor and outdoor units. Identify what accessories, if any, are required for the application at hand and consult the separate installation instructions for the accessories. Some of the accessories, especially on the indoor units, can be installed much easier if planned ahead.

INSTALLATION

Complete Pre-installation Checks

1.Unpack Unit - Store the indoor and outdoor units in the original packaging until it is moved to the final site for in- stallation.

2.Inspect Shipment - Upon receipt of shipment, check the indoor and outdoor units for damage. If there is any dam- age, forward claim papers directly to the transportation company. Manufacturer is not responsible for damage in- curred in transit.

3.Inspect Parts Supplied With Units – Check all items against parts list (see page 7). If any items are missing, noti- fy your distributor or Carrier office. To prevent loss or damage, leave all parts in original packages until installa- tion.

Consider System Requirements

1.Consult local building codes and NEC for special installa- tion requirements.

2.When deciding the location of the indoor and outdoor units, ensure that the piping run does not exceed the allowed dis- tances listed in Table 3.

3.Make sure the indoor and outdoor units are easily accessible to electrical power.

4.Allow sufficient clearances for airflow, wiring, refrigerant piping, and servicing the unit. See Fig.1 through Fig. 5.

5.Condensate piping can be directed through the inside wall to an approved drain or straight outside.

INSTALL INDOOR UNIT

Plan the installation carefully before you begin.

1.Select indoor unit location. If possible, place the unit adja- cent to an outside wall if fresh air is required, and ensure that the location allows for complete air distribution.

NOTE: If unit is not installed adjacent to an outside wall and fresh air is required, a power ventilation kit ac- cessory is available.

2.Remove the indoor unit from the carton and place it upside down and perform the following steps:

a.Remove side panels by sliding forward, then away from sides of the unit . See Fig. 9.

 

-- 40QAQ/38QRR

b. Remove air filters from inlet grilles; then remove and

40QAC/38HDR

A09525

 

Fig. 9 - Removal of Mounting Brackets from Indoor Unit

 

 

 

retain screws securing inlet grilles to indoor unit.

 

c. Remove inlet grilles from indoor unit by sliding for-

 

ward.

 

d. If a size 024 indoor unit is to be matched with a size

 

018 outdoor unit, switch the Molex plug on the motor.

 

The Molex plugs are labeled as 018 or 024.

 

e. Loosen hex bolts on the side of the unit and remove the

 

mounting brackets by sliding them out in direction

 

shown in Fig. 10. Allow approximately 3/8 inch space

 

between the bolt head and the unit as shown in Fig. 10.

 

A09527

Fig. 10 - Installing Hex-Head Mounting Bolts

in Fan Coil Unit

f.If piping is going to be run from the right hand side, open knock-out by removing the pre-split portion in the rear of the right hand side panel with a saw or cutter knife.

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Contents Safety Considerations 40QAC, QAQ Unit38HDR, QRR Unit Dimensions Indoor UnitSize 38HDR Outdoor Unit Dimensions English 38HDR Outdoor Unit Dimensions SI 38QRR Outdoor Unit Dimensions English 38QRR Outdoor Unit Dimensions SI System Requirements Parts ListUser Interface Finished Goods Accessory Power and Connecting Cables Field SuppliedInstallation Fan Coil Unit Hanging Dimensions Mounting on Ground Mounting on RoofMounting Unit on Wall Complete Outdoor Power and Control Wiring Complete Outdoor Refrigerant Piping Connec- tionsConnection at Outdoor Unit Line Power Connections Power Wiring38HDR Electrical Data 38QRR Electrical Data40QAC/QAQ Electrical Data 38HDR and 40QAC Cooling System Wiring Diagram 38QRR and 40QAQ Heat Pump System Wiring Diagram Connect Condensate Drain Line Complete Indoor PipingComplete Control Wiring Complete Power Connection To Indoor UnitInstall Thermostat START-UP Using Vacuum PumpReassemble Indoor Unit Preliminary ChecksManifold Deep Vacuum Method To Start the UnitOperating Sequence Cleaning and MaintenanceTo clean the outdoor coil ServiceTo clean or replace drain pan Cleaning and Maintenance ScheduleBefore Calling for Service TroubleshootingTroubleshooting Problem Cause Typical SolutionTroubleshooting the Heating Cycle Troubleshooting the Cooling Cycle 2SI

40QAC specifications

The Carrier 40QAC is a standout product in the realm of commercial air conditioning systems. This air-cooled chiller is designed to meet a variety of cooling needs while ensuring energy efficiency and reliability. One of the most notable features of the 40QAC is its advanced scroll compressor technology, which is engineered to provide consistent performance with reduced noise levels. This makes it an ideal choice for applications where minimizing sound pollution is crucial, such as in urban settings or near sensitive environments.

In terms of energy efficiency, the 40QAC boasts impressive ratings, with a high coefficient of performance (COP) that helps to lower operational costs and reduce environmental impact. Its design integrates various energy-saving features, including variable speed fans and a robust control system that optimizes performance based on real-time demand. This adaptability allows the chiller to maintain comfort levels while consuming less energy than traditional models.

The 40QAC is equipped with a microprocessor-based control system that simplifies operation and enhances user experience. This intelligent control interface allows operators to monitor performance metrics, adjust settings, and troubleshoot any issues remotely, increasing overall system reliability. The system is also designed to be compatible with building management systems, which facilitates seamless integration into existing infrastructure.

Another prominent characteristic of the Carrier 40QAC is its robust construction. Built with high-quality materials, it offers excellent durability and longevity, even in challenging environmental conditions. The unit also incorporates features to streamline maintenance, such as accessible component layout and easy-to-remove panels, ensuring that downtime for servicing is minimized.

Safety is another critical aspect of the Carrier 40QAC’s design. It’s engineered with numerous safety protocols to protect against overheating, overpressure, and other potential hazards, guaranteeing both system integrity and peace of mind for operators.

Overall, the Carrier 40QAC is a versatile and efficient solution for commercial cooling needs. With its technological advancements, energy-saving features, and robust design, it stands out as a reliable choice for businesses looking to balance performance with sustainability. The 40QAC not only promises efficient cooling but does so while aligning with the growing demand for eco-friendly solutions in today's marketplace.
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