J4AC6 Installation Manual

11
13. Start up
13.1 System start up
12.2 High voltage disconnect switch
Weigh-In Method can be used for the initial installation, or anytime a
system charge is being replaced. Weigh-In Method can also be used
when power is not available to the equipment site or operating
conditions (indoor/outdoor temperatures) are not in range to verify
with the
liquid line pressure charging method.
Install a separate disconnect switch at the outdoor unit.
Field provided flexible electrical conduit must be used for high voltage
wiring.
12.3 High voltage ground
Ground the outdoor unit per National, State and Local Code
requirements.
Figure 31
Figure 32
14. System charge adjustment
14.1 Charging: Weigh-In Method
Table 7
Model Factory Charge
5/16'' 3/8'' 1/2''
0.4 oz/ft 0.6 oz/ft 1.2 oz/ft
Charge multiplier for
liquid line length
All models
The data on
nameplate
Ensure Sections 7, 8, 9, 10, 11 and 12 have been completed.
Set System Thermostat to OFF.
1.
2.
Turn on disconnect to apply power to the indoor and outdoor units.3.
Wait one (1) hour before starting the unit if compressor crankcase
heater is used and the outdoor ambient temperature is below 70 ºF.
4.
Set system thermostat to ON.5.
OFF
D
O
N
E
CANCEL
Figure 33
ON
OFF
Figure 34
60 MIN.
Figure 35
D
O
NE CANC EL
TUE
EM HEAT
O
FF
CO
O
L
Following
Schedule
Inside Set To
Figure 36