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Installation - Carrier 25HNB5 Installation Instructions Manual

Infinity 15 heat pump with puron refrigerant 1-1/2 to 5 nominal tons (sizes 18-60)
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When outdoor
unit is connected
to factory-approved
indoor
unit,
outdoor
unit contains
system
refrigerant
charge for operation
with
AHRI
rated
indoor
unit when
connected
by 15 ft/4.57
m. of
field-supplied
or factory
accessory
tubing.
For
proper
unit
operation,
check
refrigerant
charge
using
charging
information
located
on control box cover
and/or in the Check
Charge
section
of this instruction.
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,
This unit employs
one louver spacer on each of the four sides to
prevent
louver movement
during
operation,
The louver
spacers
are
trapped
between
the
coil
surface
and
louver
at
the
approximate
center of each side (See Fig. 2).
This louver spacer
should
be present
and, if dislodged
during
shipment,
must
be
reinstalled
before
unit is placed
into operation,
Clearance
Requirements
When
installing,
allow
sufficient
space
for
airflow
clearance,
wiring,
refrigerant
piping,
and service.
Allow
24 in. (610 ram)
clearance
to service
end of unit and 48 in. (1219.2
ram)
above
unit. For proper airflow,
a 6 in. (152.4
ram) clearance
on 1 side of
unit
and
12 in. (304.8
ram)
on all remaining
sides
must
be
maintained.
Maintain
a distance
of 24 in. (609.6
ram) between
units. Position
so water, snow,
or ice from
roof or eaves
cannot
fall directly
on unit.
3/8-in.
(9.53 mm) Dia.
Tiedown
Knockouts
in
Basepan(2)
Places
1
View From Top
UNIT BASE PAN
TIEDOWN
KNOCKOUT
LOCATIONS
in. (mm)
Dimension
in. (mm)
A
B
C
31-1/2 X 31-1/2
(800 X 800)
9-1/8
(231.8)
6-9/16
(166.7)
24-11/16
(627.1)
35 X 35
(889 X 889)
9-1/8
(231.8)
6-9/16
(166.7)
28-7/16
(722.3)
A05177
Fig.
3 -
Tiedown
Knockout
Requirements
On rooftop
applications,
locate
unit
at least 6 in. (152.4
ram)
above roof surface.
Operating
Ambient
The minimum
outdoor
operating
ambient
in cooling
mode
is
55°F/12.78°C
without
low
ambient
cooling
enabled,
and
the
maximum
outdoor
operating
ambient
in
cooling
mode
is
125°F/51.67°C.
The
maximum
outdoor
operating
ambient
in
heating
mode is 66 °F/18.89°C.
Elevate
Unit
Fig. 2 -
Louver
Spacer
Location
A11380
Install
on a Solid,
Level
Mounting
Pad
If conditions
or local
codes require
the unit be attached
to pad,
tiedown
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.
For hurricane
tie downs,
contact
distributor
for details
and PE
Certification
(Professional
Engineer),
if required.
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.
Roof mounted
units
exposed
to winds
above 5 mph may require
wind
baffles.
Consult
the
Service
Manual
- Residential
Split
System
Air
Conditioners
and
Heat
Pumps
for
wind
baffle
construction.
NOTE:
Unit
nmst
be level
to within
---2° (---3/8
in./ft.)
per
compressor
manufacturer
specifications.
UNIT
OPERATION
HAZARD
Failure
to
follow
this
caution
may
result
in equipment
damage
or improper
operation.
Unit nmst be kept free of an accumulation
of water and/or ice
in the basepan.
Elevate
unit per local
climate
and code requirements
to provide
clearance
above
estimated
snowfall
level
and ensure
adequate
drainage
of unit. If using
accessory
support
feet, use installation
instructions
from kit for installation.
EQUIPMENT
DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation,
To prevent damage to the unit, ensure that it is located with
the supports such that the unit is stable in all circumstances
including adverse conditions,

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