Carrier Infinity 26VNA1 Installation Instructions Manual page 3

26VNA1 Infinity® Variable Speed Air Conditioner: Installation Instructions
General
Acronyms used in this publication
Acronym
PCM Primary Control Module
VFD Variable Frequency Drive
DPT Discharge Pressure Transducer
SPT Suction Pressure Transducer
ODT Outdoor Discharge Line Temperature
OST Outdoor Suction Temperature
OCT Outdoor Coil Temperature
LLT Liquid Line Temperature
OAT Outdoor Air Temperature
PEV Pressure Equalization Valve
CCN Carrier Communication Network
NOTE: In some cases noise in the living area has been traced to gas
pulsations from improper installation of equipment.
1. This unit is intended to be installed in a location that is 10,000 feet
(3000 meters) above sea level or lower.
2. Locate unit away from windows, patios, decks, etc. where unit
operation sound may disturb customer.
3. Variable speed units have a wide airflow range. Consider ductwork
limitations at both high and low airflows.
4. In noise sensitive applications (such as bedrooms), when a lineset is
mounted to ceiling joists or floor joists, the outdoor unit must be
located at least 10 ft (3.05 m) away. If this is not possible, create a
line set configuration with enough bends to provide 10 ft (3.05 m)
of total line set length outside the dwelling.
5. Ensure that vapor and liquid tube diameters are appropriate for unit
capacity (see Table 1).
6. Run refrigerant tubes with no bends with centerline bend radius less
than 2.5 times the external pipe diameter.
7. Leave some slack between structure and unit to absorb vibration.
8. When passing refrigerant tubes through the wall, seal opening with
RTV or other pliable silicon-based caulk (see
9. Avoid direct tubing contact with water pipes, duct work, floor
joists, wall studs, floors, and walls.
10. Do not suspend refrigerant tubing from joists and studs with a rigid
wire or strap which comes in direct contact with tubing (see
11. Ensure that tubing insulation is pliable and completely surrounds
vapor tube.
12. When necessary, use hanger straps which are 1 in.(25 mm) wide
and conform to shape of tubing insulation. (See
13. Isolate hanger straps from insulation by using metal sleeves bent to
conform to shape of insulation.
14. Provision shall be made for expansion and contraction of long runs
of piping.
15. Piping and fittings shall be protected as far as possible against
adverse environmental effects. For example, the accumulation of
dirt and debris.
16. Piping should be installed to reduce the likelihood of hydraulic
shock damaging the system.
17. Certified piping and components must be used in order to protect
against corrosion.
18. Flexible pipe elements shall be protected against mechanical
damage, excessive stress by torsion, or other forces. They should be
checked for mechanical damage annually.
19. Piping material, routing, and installation shall be include protection
from physical damage in operation and service, and be in
compliance with the national and local codes and standards of the
installation site.
20. When setting up refrigerant piping, precautions shall be taken to
avoid excessive vibration or pulsation.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Description
Fig. 1).
Fig. 1).
Fig. 1.)
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage.
If proper lineset routing techniques are not followed, variable speed
systems can be susceptible to lineset transmitted noise inside the
dwelling and, in extreme cases, tubing breakage.
OUTDOOR WALL
CAULK
INSULATION
HANGER STRAP
(AROUND SUCTION
TUBE ONLY)
1" (25.4 mm)
MIN
Fig. 1 – Connecting Tubing Installation
The outdoor unit contains the correct amount of refrigerant charge for
operation with AHRI rated and factory-approved smallest indoor unit
when connected by 15 ft (4.57 m) of field-supplied or factory accessory
tubing.
Adjust refrigerant charge by adding or removing the charge to/from the
unit depending on lineset length and indoor unit as calculated and
displayed on the Infinity® System Control. The Infinity® System
Control calculates required charge adjustment and total system charge
required. For proper unit operation, check refrigerant charge using
charging information in the Start-Up & Charging section of this
instruction.
IMPORTANT: Liquid-line size is 3/8-in. OD for all 26VNA1
applications including long line applications. Refer to Residential Piping
and Long Line Guideline for further information
IMPORTANT: Always install the factory-supplied liquid-line filter
drier. Obtain replacement filter driers from your distributor or branch.
Installation
IMPORTANT: All split system and packaged air conditioners must be
installed pursuant to applicable regional efficiency standards issued by
the Department of Energy.
Specifications for this unit in residential new construction markets
require the outdoor unit, indoor unit (including metering device),
refrigerant tubing sets, and filter drier, and muffler listed in pre-sale
literature. There can be no deviation. Consult the Application Guideline
and Service Manual – 26VNA1/27VNA0 Infinity® Variable Speed Air
Conditioner and Heat Pump with Greenspeed® Intelligence.
3
CAUTION
INDOOR WALL
LIQUID TUBE
SUCTION TUBE
THROUGH THE WALL
JOIST
INSULATION
SUCTION TUBE
LIQUID TUBE
SUSPENSION
A07588