Evacuation
Gauges can now be attached to the service
ports - SERVICE PORTS HAVE A 5/16"
CONNECTION TO GAUGES, which is dif-
ferent from the norm for R-22. You will need
specific hoses or an adaptor for the 5/16"
connection.
Once the gauges are attached the line
set can be leak checked using Nitrogen
at 300 psig. Evacuate the unit and inter-
connect down to a minimum of 400-500
Microns, break vacuum with Nitrogen to
further leak check.
Re-evacuate the system down to 300-400
Microns or lower for a period of one hour.
This is an R-410A System it is essential
that a deep vacuum be pulled on the sys-
tem to remove all traces of moisture. See
"System Start-Up" section to fine-tune the
refrigerant charge.
Main Power Wirin_
Electrical wiring should be done in ac-
cordance with all National Electrical Code
(NEC) and local state!city building codes.
_Note: A small screwdriver is required_
Breaker size and wiring must be sized
for the rating plate amperage, MCA and
HACR. Use only HACR type breakers,
each system installed must have a sep-
arate branch circuit with an individual
breaker/fuse.
9,000
2,000
8,000
!4,000
9,000
2,000
8,000
!4,000
115/80/1
115/80/1
220/60/!
208/230/80/!
7,2
9,6
6,4
8,1
7,2
9,6
6,4
8,1
A local disconnect should be installed ad-
jacent to the outdoor unit in accordance
with National and Local Codes. The out-
door unit provides power for the indoor
unit, no disconnect is required between
the outdoor and indoor units.
Line voltage from the disconnect should
be wired to:
N - L (115V Unit), + G
LI - L2 (208/230V Unit), + G
Remove right side knockout on the termi-
nal access panel for whip/wiring connec-
tion. Ground connection must be made to
the terminal plate.
Heat Pump (208,/230V) unit terminals:
LI - L2 : Power from breaker + G
L3 - L4 : Power to indoor unit + G
1 - 2 - 3 : Control signals
These are just examples of typical wiring
connections. Alway_ refer to Wire Diagram
on unit for actuamwiring connections.
: Foreasieraccessto the terminalsin the_
oor unitremovethe loweraccesspaneltoJ
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