Installation guide

INST ALLATION INSTRUCTIONS R- 410A Split System Air Conditioner
2 421 01 1702 05
Specifications subject to change without notice.
Figure 1 Connecting Tube Installation
INSULATION
VAPOR TUBE
LIQUID TUBE
OUTDOOR WALL INDOOR WALL
LIQUID TUBE
VAPOR TUBE
INSULATION
CAULK
Avoid contact between tubing and structureNOTE:
THROUGH THE WALL
HANGER STRAP
(AROUND VAPOR
TUBE ONLY)
JOIST
1″ (25.4 mm)MIN.
SUSPENSION
Outdoor unit c ontains 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.
IMPORTANT: Maximum liquid- line size is 3/8- in. OD for all
residential applications including long line.
IMPORTANT: Always install the factory- supplied liquid- line filter
drier. Obtain replacement filter driers from your distributor or
branch.
INSTAL LATION
!
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could result in personal
injury or equipment damage.
R- 410A refrigerant systems operate at higher pressures
than standard R - 22 systems. Do not use R - 22 service
equipment or components on R- 410A refrigerant
equipment.
Specifications for this unit in residential new construction market
require the outdoor unit, indoor unit, refrigerant tubing sets,
metering device, and filter drier listed in presale literature. There
can be no deviation.
Check Equipment and Job Site
Unpack
Unit
Move to final location. Remove carton. Do 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.
Install on a Solid, Level Mounting Pad
If conditions or local codes require the unit be attached to pad, tie
down bolts should be used and fastened through knockouts
provided in unit base pan. Refer to unit mounting pattern in Fig. 2
to determine base pan size and knockout hole location.
For hurricane tie downs - contact your local distributor for details
and PE (Professional Certification), if required by local authorities.
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 may require wind baffles.
Consult the Low - Ambient pressure switch installation instructions
for wind baffle construction.
NOTE: Unit must be level to within 2_ (3/8 in./ft..) per
compressor manufacturer specifications.
Clearance Requirements
When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 24 in. (609.6 mm)
clearance to service end of unit and 48 in. (1219.2 mm) above
unit. For proper airflow, a 6 in. (152.4 mm) clearance on one side
of unit and 12 in. (304.8 mm) on all remaining sides must be
maintained. Maintain a distance of 24 in. (609.6 mm) between
units. Position so water, snow, or ice from roof or eaves cannot
fall directly on unit.
Figure 2
Tie Down Knockouts
3/8- in. (9.53 mm) Dia.
Tiedown Knockouts in
Basepan(2) Places
View From Top
UNIT BASE PAN
Dimension
TIEDOWN KNOCKOUT LOCATIONS 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)
On rooftop applications, locate unit at least 6 in. (152.4 mm)
above roof surface.
Operating Ambient
The minimum outdoor operating ambient in cooling mode is 55 °F
(12.78 _C), and the maximum outdoor operating ambient in
cooling mode is 125°F (51.67_C).
*CA7 product is approved for low ambient cooling operation down
to an ambient as low as 0 _F (- 17.78 _C) with low ambient
accessory kits.
Make Piping Connections
!
WARNING
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could result in personal
injury or death.
Relieve pressure and recover all refrigerant before system
repair or final unit disposal.
Use all service ports and open all flow- control devices,
including solenoid valves.