12
If the outdoor unit is lower than the surrounding obstacles,
add a field-supplied duct to deflect condenser air flow as
shown below in Fig. 14.
Fig. 14 —Condenser Air Flow Deflector
SNOW GUARD INSTALLATION To protect the outdoor
unit coil from snow accumulation in certain climates, snow
guards are recommended to be installed in the field. Refer to
snow guard installation manual for dimensional drawings for
field fabrication and additional information on snow guards.
The outdoor unit must be mounted at least 12 in. off the
ground or 12 in. above the average snow accumulation depth,
whichever is greater. Refer to snow guard installation manual
for more details.
Clearances for the sides and back of the outdoor unit must
be at least 16 in. greater than standard installation guidelines.
ACCESSING REFRIGERANT AND ELECTRICAL
CONNECTIONS To access electrical and refrigerant
connections follow the steps below.
Removing the Upright Posts
—
Remove the four screws
from the left and right upright posts as shown in Fig. 15.
Fig. 15 —Removing the Upright Post Screws
Rotate the upright posts 5 to 10 degrees, lift them up about 2
mm to remove as shown in Fig. 16.
Fig. 16 —Removing the Upright Posts
Removing the Side Panels — Remove the four screws on the
top and bottom side panels. Lift them up about 3 mm and
remove (see Fig. 17).
Fig. 17 —Removing the Front Panel
Step 3 — Connect Refrigerant Piping
REFRIGERANT PIPING CONNECTIONS — Figure 18
describes each refrigerant pipe. When making refrigerant
piping connections follow these steps:
1.
Remove the valve caps and make sure the valves are
closed.
2.
Use a pipe cutter to remove small pipe caps.
3.
Use a torch to remove the large pipe caps.
4.
Create a small hole in the rubber gasket and feed the
connecting pipes through the hole as shown in Fig. 19.
5.
Wrap a wet cloth around the valves before brazing.
6.
Braze each connecting pipe to its corresponding valve as
shown in Fig. 20.
7.
Brazing should be performed under constant flow of
high-purity nitrogen to prevent oxidation and
contamination within the piping.
>45°
>39-3/8 [1000]
Airflow deflector
>11-13/16 [300]
Front view
B
A
C
Side view
Front view
Front view
B
B
A
A
A
B
D
C
A
A
A
A
5~10°
A
1:2
Twist the upper right post, one twist
for each upper and lower side.