Introduction; Installation; Storage; Step 1 - Inspect Shipment - Carrier AquaForce 30XA Series Installation Instructions Manual

CAUTION
DO NOT re-use compressor oil or any oil that has been ex-
posed to the atmosphere. Dispose of oil per local codes and
regulations. DO NOT leave refrigerant system open to air any
longer than the actual time required to service the equipment.
Seal circuits being serviced and charge with dry nitrogen to
prevent oil contamination when timely repairs cannot be com-
pleted. Failure to follow these procedures may result in dam-
age to equipment.

INTRODUCTION

These instructions cover installation of 30XA080-501 air-cooled
liquid chillers with electronic controls and units with factory-in-
stalled options (FIOPs). See Fig. 1.

INSTALLATION

Storage

If the unit is to be stored for a period of time before installation or
start-up, be sure to protect the machine from construction dirt.
Keep protective shipping covers in place until the machine is
ready for installation.
Step 1 — Inspect Shipment
Inspect unit for damage upon arrival. If damage is found, immedi-
ately file a claim with the shipping company, and contact your lo-
cal Carrier representative.
Step 2 — Place, Mount, and Rig the Unit
When considering a location for the unit, be sure to consult NEC
(National Electrical Code, U.S.A.) and/or local code requirements.
Allow sufficient space for airflow, wiring, piping, and service. See
Fig. 2-27.
NOTE: To facilitate refrigerant vent piping, all units have fusible
plugs with / in. SAE (Society of Automotive Engineers) flares
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and pressure reliefs with /
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codes).
in. NPT fittings (if required by local
NOTE: The 30XA501 units are shipped as two separate pieces re-
ferred to as the 501A module (section including cooler and com-
pressors) and the 501B module. These two pieces must be field
combined prior to installing cooler piping and electrical connec-
tions (see the section 30XA501 Unit Assembly on page 108).

PLACING UNIT

Locate the unit so that the condenser airflow is unrestricted both
above and on the sides of the unit. Airflow and service clearances
are 6 ft (1.8 m) around the unit. Acceptable clearance on the sides
or ends without control boxes can be reduced to 3 ft (1 m) without
sacrificing performance as long as the remaining three sides are
unrestricted. Acceptable clearance on the side with a control box
can be reduced to 4 ft (1.3 m) due to NEC regulations, without
sacrificing performance as long as the remaining three sides are
unrestricted. Provide ample room for servicing and removing the
cooler. See Fig. 2-27 for required clearances. Local codes for
clearances take precedence over the manufacturer's recommenda-
tions when local codes call for greater clearances.
If multiple units are installed at the same site, a minimum separa-
tion of 10 ft (3 m) between the sides of the machines is required to
maintain proper airflow and minimize the chances of condenser
air recirculation.

MOUNTING UNIT

The unit may be mounted on a level pad directly on the base rails,
on a raised mounting rail around the unit, or on vibration isolation
springs. For all units, ensure placement area is strong enough to
support unit operating weight. See Tables 1A and 1B. Mounting
holes are provided for securing the unit to the pad, mounting rail
or vibration isolation springs. Bolt the unit securely to pad or rails.
If vibration isolators (field-supplied) are required for a particular
installation, refer to unit weight distribution in Fig. 28A-28C to aid
in the proper selection of isolators. The 30XA units can be mount-
ed directly on spring isolators. Once installed, the unit must be lev-
el to within / -in. per ft (1 cm per meter) along the long axis of the
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oil separator. This is required for oil return to the compressor(s).
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