of these two fluids as the HTF in this system
is strictly prohibited.
Propylene glycol can degrade over time. The
process of degradation is accelerated in presence
of oxygen and/or heat. We strongly encourage
you to establish a preventative maintenance
schedule with your installation contractor. The
HTF pH level must be maintained between 8 and
10 in order to prevent glycol oxidation and cor-
rosion of the collector piping.
SunEarth’s col-
lector warranty specifically excludes freeze
damage for any reason and absorber plate
damage resulting from the oxidation of the
propylene glycol HTF.
In order to completely protect the integrity of the
solar collector and piping, the system is designed
to be drained manually if subject to extended
periods of disuse or persistent hard freeze condi-
tions below minus 60° Fahrenheit. (See Sections
8.1 and 8.2 below).
3) INSTALLATION REQUIREMENTS - GENERAL
3.1 The contractor shall obtain all required per-
mits and approvals.
3.2 The installation shall conform to all federal,
state and local regulations, codes, ordi-
nances and standards governing solar
water heating system installations, and the
contractor shall adhere to sound building
safety and trade practices. Special consid-
eration must be given to building code
requirements for the penetration of struc-
tural members and fire rated assemblies.
3.3 The solar collector must be located in a
structurally sound area of the roof that will
be unshaded for the majority of the day all
year round. Adjacent buildings and trees
should be checked for possible winter
shading. An instrument such as the Solar
Pathfinder can be used for solar site analy-
sis. (Solar Pathfinder can be reached at
605-528-6473).
P.3
fig.3
LATITUDE
25°N
30°N
35°N
40°N
45°N
50°N
COLL. TILT
35°
40°
45°
50°
55°
60°
A
B
A
B
A
B
A
B
A
B
A
B
FLAT
29
96
33
113
37
145
41
145
44
145
48
145
5°
1/12
25
83
29
93
33
113
37
132
41
133
44
141
9°
2/12
22
74
26
82
30
77
34
110
38
115
41
118
14°
3/12
17
66
22
72
26
82
30
92
34
95
38
98
18°
4/12
14
61
18
66
22
74
26
82
30
85
34
87
ROOF
23°
5/12
10
58
14
60
18
66
22
72
26
74
30
77
PITCH
27°
6/12
7
58
11
58
15
61
19
66
23
68
27
70
30°
7/12
4
58
8
58
13
58
17
62
21
65
25
66
34°
8/12
0
58
5
58
9
58
13
58
17
60
22
62
37°
9/12
0
58
3
58
7
58
11
58
15
58
19
58
40°
10/12
0
58
0
58
4
58
8
58
13
58
17
58
43°
11/12
0
58
0
58
2
58
6
58
10
58
14
58
45°
12/12
0
58
0
58
0
58
4
58
8
58 13
58
DIMENSIONS A AND B ARE DESIGNATED IN INCHES
TABLE 1
SIDE PITCH MOUNTING
