Carrier MAQB303 User Manual

40MAQ / 38MAQ High- Wall Ductless Split System Sizes 09 to 30

Product Data

INDUSTRY LEADING FEATURES / BENEFITS

A PERFECT BALANCE BETWEEN BUDGET LIMITS, ENERGY SAVINGS AND COMFORT.

The 38/40MAQ series ductless split systems are a matched combination of an outdoor condensing unit and an indoor fan coil unit connected only by refrigerant tubing and wires.

The fan coil is mounted on the wall, near the ceiling. This selection of fan coils permits creative solutions to design problems such as:

S Add- ons to current space (an office or family room

addition)

S Special space requirements

S When changes in the load cannot be handled by the

existing system.

S When adding air conditioning to spaces that are heated

by hydronic or electric heat and have no ductwork.

S Historical renovations or any application where

preserving the look of the original structure is essential.

The ideal compliment to your ducted system when it is impractical or prohibitively expensive to use ductwork.

These compact indoor fan coil units take up very little space in the room and do not obstruct windows. The fan coils are attractively styled to blend with most room decors. Advanced system components incorporate innovative technology to provide reliable cooling performance at low sound levels.

LOW SOUND LEVELS

When noise is a concern, the ductless split systems are the answer. The indoor units are whisper quiet. There are no compressors indoors, either in the conditioned space or directly over it, and there is none of the noise usually generated by air being forced through ductwork.

When sound ordinances and proximity to neighbors demand quiet operation, the 38MAQ unit is the right choice: The advanced, horizontal airflow design distributes air more evenly over the coil.

SECURE OPERATION

If security is an issue, outdoor and indoor units are connected only by refrigerant piping and wiring to prevent intruders from crawling through ductwork. In addition, since 38MAQ units can be installed close to an outside wall, coils are protected from vandals and severe weather.

FAST INSTALLATION

This compact ductless split system is simple to install. A mounting bracket is standard with the indoor units and only wire and piping need to be run between indoor and outdoor units. These units are fast and easy to install ensuring minimal disruption to customers in the home or workplace. This makes the 38/40MAQ ductless split systems the equipment of choice, especially in retrofit situations.

SIMPLE SERVICING AND MAINTENANCE

Removing the top panel on outdoor units provides immediate access to the control compartment, providing a service technician access to check unit operation. In addition, the draw- thru design of the outdoor section means that dirt accumulates on the outside surface of the coil. Coils can be cleaned quickly from the inside using a pressure hose and detergent.

On all indoor units, service and maintenance expense is reduced due to easy- to- use cleanable filters. In addition, these high wall systems have extensive self- diagnostics to assist in troubleshooting.

BUILT- IN RELIABILITY

Ductless split system indoor and outdoor units are designed to provide years of trouble- free operation.

The high wall indoor units include protection against freeze- up and high evaporator temperatures on heat pumps.

The condensing units on heat pumps are protected by a three minute time delay before the compressor will start the over- current protection and the high temperature protection.

INDIVIDUAL ROOM COMFORT

Maximum comfort is provided because each space can be controlled individually based on usage pattern. The air sweep feature provided permits optimal room air mixing to eliminate hot and cold spots for occupant comfort. In addition, year- round comfort can be provided with heat pumps.

ECONOMICAL OPERATION

The ductless split system design allows individual room heating or cooling when required. There is no need to run large supply- air fans or chilled water pumps to handle a few spaces with unique load patterns. In addition, because air is moved only in the space required, no energy is wasted moving air through ducts.

EASY- TO- USE CONTROLS

The high- wall units have microprocessor-based controls to provide the ultimate in comfort and efficiency. The user friendly wireless remote control provides the interface between user and the unit.

ACCESSORIES

Customizing these ductless split systems to your application is easily accomplished.

Adding a condensate pump accessory to the high wall fan coil provides installation flexibility.

OPTIONAL WIRED CONTROLLER

AGENCY LISTINGS

All systems are listed with AHRI (Air Conditioning, Heating & Refrigeration Institute), and ETL.

MODEL NUMBER NOMENCLATURE

INDOOR UNIT

40 MA 309

40= FAN COIL UNIT

MA =MODEL

SYSTEM TYPE Q =HEATPUMP

MAXIMUM NUMBER OF FAN COIL UNITS THAT CAN BE CONNECTED TO THE OUTDOOR UNIT B=1:1

NOMINAL CAPACITY 09 -3/4TON 12 -1TON 18 -1-1/2TONS 24 -2TONS 30 -2-1/2TONS

BQB

VOLTAGE 1 =115-1-60 3 = 208/230 - 1 - 60

NOT USED

INDOOR FAN COIL TYPE

B= HIGH- WALL

38 MA 309

38 = OUTDOOR UNIT

MA =MODEL

SYSTEM TYPE Q =HEATPUMP

MAXIMUM NUMBER OF FAN COIL UNITS THAT CAN BE CONNECTED TO THE OUTDOOR UNIT B=1:1

NOMINAL CAPACITY 09 -3/4TON 12 -1TON 18 -1-1/2TONS 24 -2TONS 30 -2-1/2TONS

OUTDOOR UNIT

BQ-

VOLTAGE 1 =115-1-60 3 = 208/230 - 1 - 60

NOT USED

UNIT TYPE

- = OUTD OOR UNIT

Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program For verification of certification for individual products, go to www.ahridirectory.org.

STANDARD FEATURES AND ACCESSORIES

Ease Of Installation

Mounting Brackets S Low Voltage Controls S

Comfort Features

Microprocessor Controls S Wired Remote Control A Wireless Remote Control S Automatic Horizontal Air Sweep S Air Direction Control S Auto Restart Function S Cold Blow Protection On Heat Pumps S Freeze Protection Mode On Heat Pumps S Turb o Mod e S Silence Mode S Auto Changeover On Heat Pumps S

Follow Me S

Energy Saving Features

Sleep Mode S Stop/Start Timer S

46° F Heating Mode (Heating Setback)

Safety And Reliability

3MinuteTimeDelayForCompressor S Over Current Protection For Compressor S Indoor Coil Freeze Protection S Indoor Coil High Temp Protection in Heating Mode S Condenser High Temp Protection in Cooling Mode S

Ease Of Service And Maintenance

Cleanable Filters S Diagnostics S Liquid Line Pressure Taps S

Application Flexibility

Condensate Pumps A Crankcase Heater S

Legend

SStandard A Accessory

INDOOR UNITS

On high wall fan coils, the condensate pump has a lift capability of 12 ft (3.6 m) on the discharge side with the pump mounted in the fan coil or 6 ft (1.8 m) on the suction side if the pump is remote mounted. The pump is recommended when adequate drain line pitch cannot be provided, or when the condensate must move up to exit.

NOTE: An external 115v power source will be required to run the pump on unit sizes 9k and 12k.

OUTDOOR UNITS

Crankcase Heater

Standard on all unit sizes. Heater clamps around compressor oil stump.

Fig. 1 – Condensate Pump Accessory

DIMENSIONS - INDOOR

Unit Size W in (mm) D in (mm) H in (mm) Operating Weight lb (kg)

9K/12K 32.9 (835) 7.8 (198) 11.0 (280) 19.2 (8.7)

18K 39.0 (990) 8.6 (218) 12.4 (315) 26.5 (12.0)

24K/30K 46.7 (1186) 10.2 (258) 13.4 (343) 40.8 (18.5)

DIMENSIONS - OUTDOOR

Fig. 2 – Indoor unit

Fig. 3 – Outdoor unit

Model W in (mm) D in (mm) H in (mm) L1 in (mm) L2 in (mm)

9K/12K 32.0 (810) 12.2 (310) 22.0 (558) 20.9 (530) 11.4 (290) 82.5 (37.4)

18K 32.3 (845) 12.6 (320) 27.6 (700) 22.1 (560) 13.2 (335) 102.5 (46.5) 24K 37.2 (945) 15.6 (395) 31.9 (810) 25.1 (640) 15.9 (405) 137.6 (62.4) 30K 37.2 (945) 15.6 (395) 31.9 (810) 25.1 (640) 15.9 (405) 157.6 (71.5)

Operating

Weight lb (kg)

CLEARANCES - INDOOR

(0.13m)

min.

CEILING

6" (0.15m) min.

(1.8m)

FLOOR

Fig. 4 – Indoor Unit Clearance

(0.13m)

min.

CLEARANCES - OUTDOOR

UNIT

A 24 (609) B 24 (609) C 24 (609) D 4 (101) E 4 (101)

Air-outlet

Fig. 5 – Clearances Outdoor

Air-inlet

Minimum Value

in. (mm)

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