Table of Contents
Advertisement
Fixed Orifice
To prevent personal injury, carefully connect
and disconnect manifold gauge hoses. Escaping
liquid refrigerant can cause burns. Do not vent
refrigerant into the atmosphere. Recover all
refrigerant during system repair and before
final unit disposal.
1. Purge gauge lines. Connect service gauge manifold
to base-valve service ports. Run system at least 10
minutes to allow pressure to stabilize.
2. Temporarily install a thermometer 4-6" from the
compressor on the suction line. Ensure the
thermometer makes adequate contact and is insulated
for best possible readings. Use vapor temperature to
determine superheat.
3. Refer to the superheat table provided for proper
system superheat. Add charge to lower superheat or
recover charge to raise superheat.
4. Disconnect manifold set, installation is complete.
Outdoor Dry Bulb
Temperature, °F
60
65
70
75
80
85
90
95
100
105
110
115
CAUTION
SYSTEM SUPERHEAT
55
57
10
13
8
11
5
8
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
Superheat Formula = Suct. Line Temp. - Sat. Suct. Temp.
+ / - 1.0°
Indoor Wet Bulb Temperature, °F
59
61
63
17
20
23
14
16
19
10
13
15
6
9
11
----
----
7
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
8
65
67
69
26
29
30
22
26
27
19
23
24
15
20
21
12
17
18
8
13
15
7
10
11
----
7
8
----
----
7
----
----
----
----
----
----
----
----
----
71
31
29
25
23
20
16
13
10
8
7
----
----
Advertisement
Table of Contents
