Carrier AQUAZONE 50RHC006-060 User Manual download pdf (Page 38)

Packaged Water Source Heat Pumps

HVAC Guide Specifications

Size Range: 6,400 to 58,000 Btuh

Cooling Capacity

8,300 to 76,800 Btuh

Heating Capacity

Carrier Unit: 50RHC, 50RVC

Part 1 — General

1.01 SYSTEM DESCRIPTION

A. Install Water Source Heat Pumps, as indicated on

the plans with capacities and characteristics as listed

in the schedule and the specifications that follow.

Units shall be Carrier unit 50RHC (Horizontal) or

model 50RVC (Vertical) configurations.

B. Units shall be supplied completely factory built and

capable of operation with an entering water temper-

ature range from 60 to 95 F.

Equivalent units from other manufacturers can be

proposed provided approval to bid is given 10 days

prior to bid closing.

C. Units shall be individually packaged with wooden

skid covered with protective corner posts and plastic

stretch wrapping for maximum protection.

1.02 QUALITY ASSURANCE

A. All equipment listed in this section must be rated in

accordance with ARI/ASHRAE/ISO 13256-1 per-

formance standard and CSA. The units shall have

ARI/ISO, NRTL, and CSA labels.

B. All units shall be factory tested under normal operat-

ing conditions at nominal water flow rates. This test-

ing shall generate a report card to be shipped with

each unit stating performance in both Heating and

Cooling modes.

C. Serial numbers will be recorded by factory and fur-

nished to contractor for ease of unit warranty status.

Units that are tested without water flow rates are not

acceptable.

Part 2 — Product

2.01 EQUIPMENT

A. General:

1. The horizontal and vertical heat pumps shall be

fabricated from heavy gage galvanized sheet

metal. All interior surfaces shall be lined with

in. thick, 1

lb acoustic type fiberglass

insulation. All fiberglass shall be coated and

have exposed edges tucked under flanges to

prevent the introduction of glass fibers into the

airstream. All insulation must meet NFPA 90A.

2. Units shall be prewired and precharged in

factory.

B. Unit Cabinet:

1. Units must be field convertible from side to back

or back to side discharge with no additional

parts or unit structure modification. Units will

have factory-installed hanger brackets and isola-

tion grommets.

2. Horizontal units shall have one of

the following airflow arrangements:

Right-Discharge/Left-Return; Left-Discharge/

Right-Return; Back-Discharge/Left-Return; or

Back-Discharge/Right-Return as shown on the

plans.

3. Vertical Units shall have one of the follow-

ing airflow arrangements: Left-Return/Top-

Discharge, Front-Return/Top-Discharge, or

Right-Return/Top-Discharge. All vertical units

will be supplied from the factory internally

trapped.

4. If units with these arrangements are not used,

the contractor is responsible for any extra costs

incurred by other trades.

5. Cabinets shall have separate openings and

knockouts for entrance of line voltage and low

voltage control wiring. Contractor must ensure

that units can be easily removed for servicing

and coordinate locations of electrical conduit

and lights with the electrical contractor.

6. All units must have a minimum of three access

panels for serviceability of compressor compart-

ment. If other arrangements make servicing dif-

ficult, the contractor must provide access panels

and clear routes to ease service. Architect must

approve any changes in layout.

7. All units must have an insulated panel separat-

ing the fan compartment from the compressor

compartment.

8. Optional Mute package shall consist of high

technology sound attenuating materials that are

strategically applied to the cabinet, in addition

to the standard system, to further dampen

sound.

9. Units with the compressor in the airstream are

not acceptable.

C. Fan and Motor Assembly:

1. Units rated 60,000 Btuh and under shall have a

direct-drive centrifugal fan. The fan motor shall

be 3-speed, permanently lubricated, PSC (per-

manent split capacitor) type with internal

thermal overload protection.

2. Blower shall have inlet rings to allow removal of

wheel and motor from one side without remov-

ing housing.

3. Units supplied without permanently lubricated

motors must provide external oilers for easy

service.

4. The fan motor shall be isolated from the fan

housing by torsionally flexible isolation grom-

mets. The fan and motor assembly must be

capable of overcoming the external static pres-

sures as shown on the schedule.

Guide specifications

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Carrier AQUAZONE 50RHC006-060 User Manual Page 38

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