Filter
Top Products
2
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.
GENERAL
The Aquazone™ 50PSW water source heat pump (WSHP)
is a single-package vertically mounted unit with electronic con-
trols 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 Table 1 for unit
physical data.
Units are designed for indoor installation only. Be sure to al-
low adequate space around the unit for servicing. See Fig. 1
and 2 for overall unit dimensions.
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 main-
tained within 4.4 to 37.8 C.
Step 2 — Check Unit — Upon receipt of shipment at
the jobsite, carefully check the shipment against the bill of
lading. Make sure all units have been received. Inspect the car-
ton or crating of each unit, and inspect each unit for damage.
Ensure the shipping company makes proper notation of any
shortages or damage on all copies of the freight bill. Concealed
damage not discovered during unloading must be reported to
the shipping company within 15 days of receipt of shipment.
NOTE: It is the responsibility of the purchaser to file all
necessary claims with the shipping company.
1. Verify unit is correct model for entering water tempera-
ture of job.
2. Be sure the location chosen for unit installation provides
ambient temperatures maintained above freezing. Well
water applications are especially susceptible to freezing.
3. Be sure the installation location is isolated from sleeping
areas, private offices and other acoustically sensitive
spaces.
NOTE: A sound control accessory package may be used
to help eliminate sound in sensitive spaces.
4. Provide sufficient access to allow maintenance and
servicing of the compressor and coils.
5. Provide an unobstructed path to the unit within the closet
or mechanical room. Space should be sufficient to allow
removal of unit if necessary.
6. Provide ready access to water valves and fittings, and
screwdriver access to unit side panels.
7. Where access to side panels is limited, pre-removal of the
control box side mounting screws may be necessary for
future servicing.
STORAGE — If the equipment is not needed for immediate
installation upon its arrival at the jobsite, it should be left in its
shipping carton and stored in a clean, dry area of the building
or in a warehouse. Units must be stored in an upright position
at all times. If carton stacking is necessary, stack units a maxi-
mum of 3 cartons high. Do not remove any equipment from its
shipping package until it is needed for installation.
Table 1 — 50PSW Unit Physical Data
LEGEND NOTES:
1. Maximum working pressure on the base unit is 3445 kPa.
2. Units have a dual isolated compressor mounting.
3. Units have a balanced port expansion valve (TXV).
4. Insulated source and load water coils are standard.
5. Insulated refrigerant circuit is standard.
6. Compressor is on (green) light and fault on (red) light.
WARNING
Electrical shock can cause personal injury or death. Before
installing or servicing system, always turn off main power
to system. There may be more than one disconnect switch.
Turn off accessory heater power if applicable. Install lock-
out tag.
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 responsi-
bility of the installing contractor to determine and comply
with ALL applicable codes and regulations.
CAUTION
To avoid equipment damage, do not use these units as a
source of heating or cooling during the construction pro-
cess. The mechanical components used in these units can
quickly become clogged with construction dirt and debris
which may cause system damage.
50PSW UNIT SIZE 036 060 120 180 360
NOMINAL CAPACITY (kW) 10.5 17.6 35.2 49.2 105.5
WEIGHT (kg)
Operating 158 163 329 358 604
Packaged 169 175 349 363 608
COMPRESSOR (qty) Scroll (1) Scroll (1) Scroll (2) Scroll (1) Scroll (2)
REFRIGERANT TYPE R-410A
Factory Charge Per Circuit (kg) 2.04 2.83 2.83 6.80 6.80
CONNECTIONS, FPT (in.)
Commercial Load/Source
3
/
4
11
1
/
2
2
2
HWG Water In/Out
1
/
2
N/A
WATER VOLUME (L) 3.64 5.04 10.02 13.27 25.44
HWG — Hot Water Generator