Bryant Two-Speed Puron Plus Air Conditioning Unit 598B User Manual

Page 2

INSTALLATION

CHECK EQUIPMENT AND JOB SITE

UNPACK UNIT

Move to final location. Remove carton, taking care not to damage
unit.

INSPECT EQUIPMENT

File claim with shipping company prior to installation if shipment
is damaged or incomplete. Locate unit rating plate on unit corner
panel. It contains information needed to properly install unit.
Check rating plate to be sure unit matches job specifications.

II.

INSTALL ON A SOLID, LEVEL MOUNTING PAD

If conditions or local codes require the unit be attached to pad, tie
down bolts should be used and fastened through knockouts
provided in unit base pan. Refer to unit mounting pattern in Fig. 3
to determine base pan size and knockout hole location.
On rooftop applications, mount on level platform or frame. Place
unit above a load-bearing wall and isolate unit and tubing set from
structure. Arrange supporting members to adequately support unit
and minimize transmission of vibration to building. Consult local
codes governing rooftop applications.

CAUTION:

Do not allow POE lubricant to come into

contact with roofing material. POE may deteriorate cer-
tain types of synthetic roofing.

Roof mounted units exposed to winds above 5 mph may require
wind baffles. Consult the Application Guideline and Service
Manual for Residential Split System Air Conditioners and Heat
Pumps using Puron® Refrigerant for wind baffle construction

NOTE:

Unit must be level to within ±2° (±3/8 in./ft) per

compressor manufacturer specifications.

III.

CLEARANCE REQUIREMENTS

When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 30-in. clearance to
service end of unit and 48 in. above unit. For proper airflow, a 6-in.
clearance on 1 side of unit and 12 in. on all remaining sides must
be maintained. Maintain a distance of 24 in. between units.
Position so water, snow, or ice from roof or eaves cannot fall
directly on unit.

IV.

OPERATING AMBIENTS

The minimum outdoor operating ambient in cooling mode is 55°F,
and the maximum outdoor operating ambient in cooling mode is
125°F.

INSTALL TXV

Puron® fan coils and furnace coils come factory equipped with a
bi-flow, hard shut off TXV specifically designed for Puron®
two-speed units. No TXV changeout is required. An existing R-22
TXV must be replaced with a factory approved TXV specifi-
cally designed for Puron® two-speed units.

NOTE:

FK4 and FC4 fan coils are equipped with an R-22 TXV.

If an FK4 or an FC4 fan coil is used with a Puron® air conditioner,
the R-22 TXV must be replaced with a factory-approved Puron®
TXV.

CAUTION:

If indoor unit is equipped with piston,

remove indoor coil piston and replace with factory
approved TXV metering device.

TXV INSTALLATION

IMPORTANT:

The TXV should be mounted as close to the

indoor coil as possible and in a vertical, upright position. Avoid
mounting the inlet tube vertically down. Valve is more susceptible
to malfunction due to debris if inlet tube is facing down. A factory
approved filter drier must be installed in the liquid line. (See Fig.
4.)

Fig. 2—Connecting Tubing Installation

A01383

INSULATION

VAPOR TUBE

LIQUID TUBE

OUTDOOR WALL

INDOOR WALL

LIQUID TUBE

VAPOR TUBE

INSULATION

CAULK

Avoid contact between tubing and structure

NOTE:

THROUGH THE WALL

HANGER STRAP

(AROUND VAPOR

TUBE ONLY)

JOIST

″

MIN.

SUSPENSION

Fig. 3—Mounting Unit to Pad

DIMENSIONS (IN.)

UNIT SIZE

MINIMUM MOUNTING

PAD DIMENSIONS

TIEDOWN KNOCKOUT

LOCATIONS

024

19 X 24

2-13/16

6-15/16

036-060

26 X 32

9-3/4

A97375

⁄

″

⁄

IN. DIA TIEDOWN

KNOCKOUTS

(2) PLACES

IN BASEPAN

THERMOSTATIC
EXPANSION
VALVE

EQUALIZER
TUBE

SENSING
BULB

COIL

A91277

Fig. 4—TXV Installed

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