2
Untrained personnel can perform basic maintenance functions of
cleaning coils and filters and replacing filters. All other operations
should be performed by trained service personnel. When working
on air-conditioning equipment, observe precautions in the
literature, tags and labels attached to the unit, and other safety
precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguisher
available for all brazing operations.
It is important to recognize safety information. This is the safety-
alert symbol
. When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which
will
result in
severe personal injury or death. WARNING signifies hazards
which
could
result in personal injury or death. CAUTION is used
to identify unsafe practices, which
may
result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which
will
result in enhanced installation, reliability,
or operation.
GENERAL
The Aquazone
™
50PSW water source heat pump (WSHP) is a
single-package vertically mounted unit with electronic controls
designed for year-round cooling and heating.
INSTALLATION
Step 1 —
Check Jobsite
Installation, operation and maintenance instructions are provided
with each unit. Before unit start-up, read all manuals and become
familiar with the unit and its operation. Thoroughly check out the
system before operation. Complete the inspections and
instructions listed below to prepare a unit for installation. See
Tables 1 and 2 for unit physical data. Refer to Fig. 1-3 for over
all unit dimensions.
Units are designed for indoor installation only. Be sure to allow
adequate space around the unit for servicing. See Fig. 4-4 for
service clearances.
These units are not approved for outdoor installation and must be
installed indoors in the structure being conditioned. Do not locate
in areas where ambient conditions are not maintained within 40°F
to 100°F.
WARNING
Electrical shock can cause personal injury and death. Shut off
all power to this equipment during installation. There may be
more than one disconnect switch. Tag all disconnect locations
to alert others not to restore power until work is completed.
WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and goggles
and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from system
using both high-pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen and
the work area should be well ventilated. Refrigerant in
contact with an open flame produces toxic gases.
d. Cut component connection tubing with tubing cutter and
remove component from unit. Use a pan to catch any oil
that may come out of the lines and as a gage for how
much oil to add to the system.
e. Carefully un-sweat remaining tubing stubs when neces
-
sary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal inju
-
ry or death.
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.
IMPORTANT: The installation of water source heat pump
units and all associated components, parts, and accessories
which make up the installation shall be in accordance with the
regulations of ALL authorities having jurisdiction and MUST
conform to all applicable codes. It is the responsibility of the
installing contractor to determine and comply with ALL
applicable codes and regulations.
IMPORTANT: It is the installing contractors responsibility to
ensure that all equipment is installed with proper access for
services, start-up, installation of accessories, configuration of
control and other components, and equipment removal in
accordance with Carrier’s recommended service clearances and
installation instructions. Please refer to the Carrier Commercial
WSHP Warranty Statement (document number 04-570008-01)
for details on warranty exclusions regarding equipment, access,
removal and clearances.
CAUTION
To avoid equipment damage, do not use these units as a source
of heating or cooling during the construction process. The
mechanical components used in these units can quickly
become clogged with construction dirt and debris which may
cause system damage.
Summary of Contents for Aquazone 50PSW025
Page 15: ...15 Fig 9 Unit Size 122 1 Phase Complete C Deluxe D Control Package DWG No 50PSW120000 Rev 3 ...
Page 17: ...17 Fig 11 Unit Sizes 122 1 Phase W2W Open Control Package DWG No 50PSW120001 Rev 4 ...
Page 21: ...21 Fig 15 Unit Size 122 240 420 3 Phase W2W Open Control Package DWG No 50PSW320001 Rev 3 ...
Page 36: ...36 Fig 22 W2W Open Control Board ...
Page 37: ...37 Fig 23 Unit Protection Module UPM Sequence Of Operation ...
