2
EXPLOSION HAZARD
Failure to follow this warning could
result in death, serious personal injury,
and/or property damage.
Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors. Pressurized
mixtures of air or gases containing
oxygen can lead to an explosion.
!
WARNING
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing and gloves when
handling parts.
CAUTION
!
1
2
1. GZ Series Water--To Air Split System
2. Packet containing: Installation, Owner’s Manual, Warranty
Certificate and badges
A14176
Fig. 1 -- Standard Package
INSTALLATION RECOMMENDATIONS
The Water--to--Air Heat Pumps are designed to operate with
entering fluid temperature between 20
_
F to 90
_
F in the heating
mode and between 30
_
F to 120
_
F in the cooling mode.
NOTE
: 50
_
F minimum Entering Water Temperature (EWT) is
recommended for well water applications with sufficient water
flow to prevent freezing. Antifreeze solution is required for all
closed loop applications. Geothermal applications should have
sufficient antifreeze solution to protect against extreme conditions
and equipment failure. Frozen water coils are not covered under
warranty. Other equivalent methods of temperature control are
acceptable.
Check Equipment and Job Site
Moving and Storage
If the equipment is not needed for immediate installation upon its
arrival at the job site, it should be left in its shipping carton and
stored in a clean, dry area. Units must only be stored or moved in
the normal upright position as indicated by the “UP” arrows on
each carton at all times.
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage.
If unit stacking is required for storage, stack units as follows:
Do not stack units larger than 6 tons!
Vertical units: less than 6 tons, no more than two high.
Horizontals units: less than 6 tons, no more than three high.
CAUTION
!
Inspect Equipment
Be certain to inspect all cartons or crates on each unit as received at
the job site before signing the freight bill. Verify that all items have
been received and that there are no visible damages; note any
shortages or damages on all copies of the freight bill. In the event
of damage or shortage, remember that the purchaser is responsible
for filing the necessary claims with the carrier. Concealed damages
not discovered until after removing the units from the packaging
must be reported to the carrier within 24 hours of receipt.
Location / Clearance
To maximize system performance, efficiency and reliability, and to
minimize installation costs, it is always best to keep the refrigerant
lines as short as possible. Every effort should be made to locate the
air handler and the condensing section as close as possible to each
other.
Serviceability should be a consideration and units should be placed
so that installer and service technicians can access the service side
of the unit with ease. The electrical box side of unit should
maintain a clearance of 24” (609.6mm) minimum.
NOTE
: Consider access to service parts before setting in place.
Condensing Section Location
Locate the condensing section in an area that provides sufficient
room to make water and electrical connections and allows easy
removal of the access panels in order for service personnel to
perform maintenance or repair.
The condensing section is designed primarily for Indoor use.
However, if installed in outside location where it could be
subjected to freezing conditions the following conditions should be
implemented:
S
Freeze protection should be employed.
S
Freeze stat -- To monitor water temp and start the loop
pump if there is danger of freezing, even if there is no
heating call.
S
Pump timer/starter or similar device
S
Water lines entering and leaving the unit should be properly
insulated prior to ground contact.
The GZ unit should be mounted level on a vibration absorbing pad
slightly larger than the base to minimize vibration transmission to
the building structure. It is not necessary to anchor the unit to the
floor (see Fig. 2).
A14177
Fig. 2 -- Vibration Pad Location
The vast majority of geothermal units are installed indoors and the
condenser pads on the market are typically not designed for indoor
equipment. Table 1 lists recommended pads (sold separately)
designed for indoor packaged equipment. ACMP pads are made
of 3/4” thick high density SBR recycled rubber, which provides a
high degree of vibration and sound absorption for compressor
bearing units installed indoors. These pads may be trimmed as
needed.
Table 1 – Recommended Mounting Pads
Unit Size
Mounting Pad
Pad Dimensions
GZ024
ACMP2436
24” x 36”
GZ036
ACMP2436
24” x 36”
GZ048
ACMP2436
24” x 36”
GZ060
ACMP2836
28” x 36”
GZ072
ACMP2836
28” x 36”
Fan Coil or Furnace Location
Refer to the Fan Coil or Furnace Installation Manual for complete
Details on indoor locations and clearances.
