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