Carrier AQUAZONE 50RHC User Manual download pdf (Page 2)

High quality construction and

testing

All units are manufactured to meet ex-

tensive quality control standards. An

automated control system provides

continuous monitoring of each unit

and performs quality control checks as

equipment progresses through the pro-

duction process. Standard construction

features of the Carrier Aquazone™

units include:

Cabinet — Heavy gage galvanized

sheet metal cabinet construction en-

ables part standardization (i.e., minimal

number of parts) and modular design.

Cabinet interior surfaces are lined with

in. thick, 1

lb acoustic type insu-

lation. Sheet metal surfaces are treated

for maximum corrosion protection to

ensure resilience for long term vitality.

Compact cabinet dimensions fit tight

space limitations in both horizontal and

vertical configurations.

Compressor — Aquazone standard

efficiency units include a rotary com-

pressor in sizes 006 through 012, a

reciprocating compressor in sizes 018

through 048 and a scroll compressor

in size 060 units. Compressors are

mounted on an isolated system (i.e.,

from the cabinet) that maximizes vibra-

tion isolation and minimizes transmis-

sion to the unit structure.

Blower and motor assembly —

Permanent split capacitor (PSC) three-

speed (two-speed for 575 v) blowers

are provided with all units to satisfy

many air distribution applications.

Blower upgrades are available for high-

static conditions. Fan speed control

allows reduced sound operation. Blow-

er motors operate at lower tempera-

tures to help improve the reliability of

the water source heat pump.

Refrigeration/water circuit —

Most units have a sealed refrigerant cir-

cuit including a high-efficiency rotary,

reciprocating or scroll compressor.

Simplified refrigerant circuits provide

easy maintenance, higher accuracy

and excellent performance. Also

standard are a reversing valve (4-way

valve), water-to-refrigerant coaxial

(tube in tube) coil, and enhanced

aluminum fin/rifled copper tube air to

refrigerant heat exchanger coil.

A modulating reheat option is avail-

able to provide 100% reheat and

neutral supply air to the space.

ARI/ISO — Aquazone units have ARI

(Air Conditioning & Refrigeration Insti-

tute)/ISO, NRTL (Nationally Recog-

nized Testing Lab), or CSA (Canadian

Standards Association) labels and are

factory tested under normal operating

conditions at nominal water flow rates.

Quality assurance is provided via test-

ing report cards shipped with each unit

to indicate specific unit performance

under cooling and heating modes.

Water source heat pumps are New

York City MEA (Materials Equipment

and Acceptance) 60-00-E rated.

Quiet operation

Fan motor isolation and hermetic

compressor springs provide sound

isolation, cabinets are fully insulated to

reduce noise transmission, low speed

blowers are used for quiet operation

through reduced outlet air velocities,

and air-to-refrigerant coils are designed

for lower airflow coil face velocities.

Design flexibility

Airflow configurations for horizontal

units are available in four patterns in-

cluding left or right return, and left,

right, or back discharge. Horizontal

units are field convertible from left or

right discharge to back discharge.

Vertical units are available in four air-

flow patterns including top discharge

with front, right or left return.

Standard water temperature range be-

tween 60

F and 95

F offers maximum

design flexibility for boiler/tower appli-

cations. Water flow rates as low as

1.5 gpm per ton assist with selection

from a various range of circulating

pumps. Factory-installed options are

offered to meet specific design

requirements.

Safe, reliable operation

Standard safety features for the refrig-

erant circuit include a high-pressure

switch, low-pressure sensor to detect

refrigerant loss. Equipment safety fea-

tures include water loop temperature

monitoring, voltage protection, water

coil freeze protection, and standard

electronic condensate overflow shut-

down. All safety features are tested and

run at the factory to assure proper op-

eration of all components and safety

switches.

All components are carefully de-

signed and selected for endurance,

durability, and carefree day-to-day

operation.

Table of contents

Page

Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

ARI/ISO Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-9

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10,11

Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12,13

Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-29

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32,33

Typical Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35-39

Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40-43

Features/Benefits (cont)

1 2 3 4 5 6 7 ... 43 44

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Carrier AQUAZONE 50RHC User Manual Page 2

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